Insertion structure between static spring and bobbin
11114264 ยท 2021-09-07
Assignee
Inventors
Cpc classification
H01H1/60
ELECTRICITY
H01H2050/446
ELECTRICITY
International classification
Abstract
The present disclosure relates to an insertion structure between a stationary spring and a bobbin, comprising: a stationary spring and a bobbin; wherein the stationary spring is inserted into the bobbin by a flip-chip method, and the bobbin is provided with slots, each having a groove shape with a laterally open in formed by an L-shaped side wall connecting with a convex wall, and each of two sides of the stationary spring is provided with a convex part, and two convex parts of the stationary spring are respectively fitted into the two opposite slots; a first blocking wall is provided along a horizontally extending direction of protruding of the convex wall, and a second blocking wall is further provided between the first blocking wall and the L-shaped side wall to connect them, and the convex parts of the stationary spring are mounted.
Claims
1. An insertion structure between a stationary spring and a bobbin, comprising: A stationary spring and a bobbin; wherein the stationary spring is inserted into the bobbin by a flip-chip method, and the bobbin is provided with slots, each of the slots having a groove shape with a laterally open is formed by an L-shaped side wall connecting with a convex wall, and each of two sides of the stationary spring is provided with a convex part respectively, and two convex parts of the stationary spring are respectively fitted in two opposite slots; wherein a first blocking wall is further provided along a horizontally extending direction of protruding of the convex wall of the bobbin, and a second blocking wall is further provided between the first blocking wall and the L-shaped side wall to connect the first blocking wall and the L-shaped side wall, and the convex parts of the stationary spring are mounted at the second blocking wall, so that shaving debris generated when the convex parts of the stationary spring are inserted into the slots of the bobbin falls into a cavity enclosed by the first blocking wall, the second blocking wall, the L-shaped side wall and the convex wall.
2. The insertion structure between the stationary spring and the bobbin according to claim 1, wherein a height of the second blocking wall is lower than the height of the first blocking wall.
3. The insertion structure between the stationary spring and the bobbin according to claim 2, wherein the first blocking wall and the convex wall are designed as an integrated structure.
4. The insertion structure between the stationary spring and the bobbin according to claim 3, wherein the second blocking wall and the first blocking wall are designed as an integrated structure.
5. The insertion structure between the stationary spring and the bobbin according to claim 2, wherein the second blocking wall is provided to vertically connect between the first blocking wall and a surface of the L-shaped side wall.
6. The insertion structure between the stationary spring and the bobbin according to claim 1, wherein the stationary spring is designed as an L shape.
7. The insertion structure between the stationary spring and the bobbin according to claim 2, wherein the height of the first blocking wall is lower than the height of the convex wall.
8. The insertion structure between the stationary spring and the bobbin according to claim 1, wherein a bottom edge of the convex part of the stationary spring is provided with a first wedge chamfer.
9. The insertion structure between the stationary spring and the bobbin according to claim 8, wherein a side edge of the convex part of the stationary spring is provided with a second wedge chamfer.
10. The insertion structure between the stationary spring and the bobbin according to claim 1, wherein the first blocking wall and the convex wall are designed as an integrated structure.
11. The insertion structure between the stationary spring and the bobbin according to claim 1, wherein the second blocking wall is provided to vertically connect between the first blocking wall and a surface of the L-shaped side wall.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
(29) The embodiments of the present disclosure relate to miniaturized relays. On one aspect, generated shaving debris can be enclosed in a specific space without going into inside of the relay/circuit breaker by improvement of a slot structure of the bobbin, thereby ensuring normal use of the relay/circuit breaker. On another aspect, the embodiments of the present disclosure can reduce volume of the relay by improvement of structures, thereby realizing miniaturization of product of the relay. On another aspect, the embodiments of the present disclosure can improve impact resistance of the product of the relay, and can reduce manufacturing cost of the product of the relay. On another aspect, the embodiments of the present disclosure can improve stability of operation of a double-contact moving spring by modification of a moving spring structure. The following is an exemplary description of structures of each part with reference to the accompanying drawings.
(30) Referring to
(31) In the present embodiment, a height of the second blocking wall 32 is lower than the height of the first blocking wall 31.
(32) In the present embodiment, the height of the first blocking wall 31 is lower than the height of the convex wall 23.
(33) In the present embodiment, the first blocking wall 31 and the convex wall 23 are designed as an integrated structure, that is, the first blocking wall 31 is integrally formed with the convex wall 23.
(34) In the present embodiment, the second blocking wall 32 and the first blocking wall 31 are designed as an integrated structure, that is, the second blocking wall 32 is integrally formed with the first blocking wall 32
(35) In the present embodiment, the second blocking wall 32 is provided to vertically connect the first blocking wall 31 and a surface of the L-shaped side wall 22. Of course, the second blocking wall 32 may further be provided to obliquely connect the first blocking wall 31 and the surface of the L-shaped side wall 22. The second blocking wall 32 may be designed as a flat plate shape or an arc shape.
(36) In the present embodiment, a bottom edge of the convex part 11 of the static spring is provided with a first wedge chamfer 12.
(37) In the present embodiment, a side edge of the convex part 11 of the static spring is provided with a second wedge chamfer 13.
(38) The static spring 1 can be easily inserted into the slots 21 of the bobbin 2 by utilizing the first wedge chamfer 12 at the bottom edge of the convex part 11 and the second wedge chamfer 13 at the side edge of the convex part 11.
(39) Since the embodiment of the present disclosure adopts that the first blocking wall 31 is further provided along the horizontally extending direction of protruding of a convex wall 23 of the bobbin 2, and the second blocking wall 32 is further provided between the first blocking wall 31 and the L-shaped side wall 22 to connect the first blocking wall 31 and the L-shaped side wall 22, and the convex parts 11 of the static spring 1 is mounted at the second blocking wall 32, so that the shaving debris generated when the convex parts 11 of the static spring 1 is inserted into the slots 21 of the bobbin 2 falls into a cavity enclosed by the first blocking wall 31, the second blocking wall 32, the L-shaped side wall 22 and the convex wall 23. The structure of the embodiments of the present disclosure may enable the shaving debris generated when the convex parts 11 of the static spring 1 is inserted into the slots 21 of the bobbin 2 falls into a cavity enclosed by the first blocking wall 31, the second blocking wall 32, the L-shaped side wall 22 and the convex wall 23. After the static spring 1 is inserted into a specific position, the convex part 11 of static spring 1 blocks the cavity from the top, thus naturally forming a closed space, so that the shaving debris generated when the static spring 1 is inserted into the slots 21 are in the closed space and cannot enter inside of the relay, thereby ensuring normal use of the relay.
(40) The present embodiment is applied to an assembly between the static spring and the bobbin, and of course, it can further be applied to the assembly between the static spring and a base.
(41) The present embodiment is applied to the relay, and can further be used for a contactor or a circuit breaker.
(42) A miniaturized relay with low-cost and high-load is provided. By improving of an installation structure of a contact part and a matching part of the moving spring armature part and the bobbin, the relay can achieve a purpose of small volume, large load and low cost.
(43) A rely of the related art is shown in
(44) Referring to
(45) In the present embodiment, first convex parts 142 are respectively provided on two edges of the width of the normally opened static spring 14, and the bobbin 2 is provided with first slots 25 configured to match inserting the first convex parts 142 provided at the two edges of the normally opened static spring. The first slots 25 are formed by two opposite recess structures, and two recesses are respectively matched with two first convex parts 142.
(46) In the present embodiment, the first slot 25 is a blind hole structure.
(47) In the present embodiment, a second convex part 152 is provided on one edge of the width of the normally closed static spring 15. The bobbin 2 is provided with second slots 26 configured to match inserting the second convex part of the normally closed static spring. The second slot 26 is further formed by two opposite recess structures. One recess is configured to match the second convex part 152 and the other is configured to match a section of the leading pin 151 of another edge of the width. In this embodiment, the second slot 26 is a blind hole structure.
(48) In the present embodiment, one side edge of the armature 7 is provided with a convex plate 72 that protrudes outward. In the bobbin 2, a groove 27 is provided at a position corresponding to the convex plate 72 of the armature. The convex plate 72 of the armature 7 is fitted into the groove 27 of the bobbin to form a limit in front and rear directions of the moving spring armature component by matching of the convex plate 72 and the groove 27. The convex plate 72 is matched with a side wall of the groove 27 to form an impact resistance of the moving spring armature component in a direction from a tail end of the armature toward the head part of the armature. The convex plate 72 is matched with another side wall of the groove 27 to form the impact resistance of the moving spring armature component in a direction from the head part of the armature toward the tail end of the armature.
(49) In the present embodiment, stepped structures 73 are provided at two sides of the head part of the armature 7, respectively, convex shoulders 28 are provided at positions corresponding to the stepped structures 73 of the bobbin 2, respectively. By the matching of the convex shoulders 28 of the bobbin 2 and the stepped structures 73 of the armature 7, the impact resistance of the moving spring armature component in the direction from the tail end of the armature toward the head part of the armature may be formed.
(50) The leading pins of the moving spring are formed by laminating the moving spring bodies.
(51) A miniaturized relay with low-cost and high-load of the present embodiment adopts that the normally opened static spring 14 and the normally closed static spring 15 are flip-chip mounted to one end of the bobbin 2 installed with the pole surface of the iron core, and leading pins 141 of the normally opened static spring 14, leading pins 151 of the normally closed static spring 15, and the leading pins 52 of the moving spring 5 are respectively oriented in the direction in which the moving contact and the static contact are separated. The structure of the present embodiment is formed characteristics that the magnetic circuit part is located at the top and the contact part is located at the bottom, so that the normally opened static spring 14 and the normally closed static spring 15 are made of a less amount of material, and the conductive distance is short, and the internal resistance of the product is small, which achieves the purpose of reducing costs while meeting heavy load requirements of the product.
(52) A miniaturized relay with low-cost and high-load of the present embodiment adopts that the first convex parts 142 are provided at the two edges of the width of the normally opened static spring 14, and the second convex part 152 is provided at the one edge of the width of the normally closed static spring 15, and the bobbin 2 is provided with the first slots 25 configured to match inserting the first convex parts 142 of the normally opened static spring and provided with a second slots 26 configured to match inserting the second convex part provided at one edge or two edges of the normally closed static spring, and the first slots 25, the second slot 26 are blind hole structures. The structure of the present embodiment can reduce the pollution of the shaving debris during process of the assembly, and has characteristics that a mold for making the bobbin is simple, the material for making the bobbin is reduced, the assembly of the static spring and the bobbin is easy, the pollution during the process of the assembly is reduced, and the cost is reduce.
(53) A miniaturized relay with low-cost and high-load of the present embodiment adopts that the leading pins of the moving spring are formed this structure by laminating the moving spring bodies, which can improve a current carrying while satisfying a process manufacturability.
(54) A miniaturized relay with low-cost and high-load of the present embodiment adopts that one side of the armature 7 is provided with the convex plate 72 that protrudes outward. In the bobbin 2, the groove 27 is provided at a position corresponding to the convex plate 72 of the armature. The convex plate 72 of the armature 7 is fitted in the groove 27 of the bobbin to form a limit in front and rear directions of the moving spring armature component by matching of the convex plate 72 and the groove 27. The structure of the present embodiment can make full use of a small space and improve the impact resistance of the product. The present embodiment further adopts that the stepped structures 73 are provided at two edges of the head of the armature 7, respectively, the convex shoulders 28 are provided at positions corresponding to the stepped structures 73 of the bobbin 2, respectively. By the matching of the convex shoulders 28 of the bobbin 2 and the stepped structures 73 of the armature 7, the impact resistance of the moving spring armature component in the direction from the tail end of the armature toward the head part of the armature may be formed. The structure of the present embodiment can make fully utilize of the matching of the armature and the bobbin to improve the impact resistance of the product.
(55) A clapper-type relay of the related art is shown in
(56) Referring to
(57) In the present disclosure, the retaining rib 2A is designed as a strip shape, and the retaining rib 2A is between the knife edge 33 of the armature and the pole surface of the iron core. And the retaining rib 2A is substantially parallel to the terminal portion 34 of the armature at the knife edge of the armature.
(58) In the present disclosure, the first convex bract 74 and the retaining rib 2A are provided with a preset gap. The matching of the first convex bract 74 and the retaining rib 2A can form the impact resistance of the moving spring armature component in the direction from the tail end of the armature toward the head part of the armature.
(59) In the present disclosure, the first convex bract 74 and the terminal portion 34 of the armature at the knife edge of the armature are provided with a preset gap. The matching of the first convex bract 74 and the terminal portion 34 of the armature at the knife edge of the armature can form the impact resistance of the moving spring armature component in the direction from a head part of the armature toward the tail end of the armature. In the present disclosure, the number of the first convex bract 74 is two.
(60) A miniaturized anti-shock clapper-type relay of the present embodiment adopts that at the tail end 71 of the armature 7, the first convex bract 74 projecting toward the bobbin is provided at a matching position close to the knife edge 33 of the armature. At the bobbin 2, the retaining rib 2A is provided at the position close to the knife edge of the armature, and the retaining rib 2A and the terminal portion 34 of the armature at the knife edge of the armature are surrounded to form the groove 2B. The first convex bract 74 of the armature 7 is fitted in the groove 2B to form the limit on the moving spring armature component in the two directions by the matching of the first convex bract 74 and the groove 2B. This structure of the present disclosure, by matching the first convex bract 74 in the groove 2B, the impact resistance of the moving spring armature component in the direction from an tail end of the armature toward the head part of the armature can be formed, and the impact resistance of the moving spring armature component in the direction from an head part of the armature toward the tail end of the armature can further be formed, which greatly improves the impact resistance of relay products.
(61) A miniaturized anti-shock clapper-type relay of the present embodiment adopts that the convex bract structure of the related art is eliminated at the tail end of the armature. The notch structure of the related art is eliminated at the bending part of the moving spring 5, so that the width of the moving spring is reduced, and the volume of the relay may be reduced, thereby advantageous for miniaturization of relay products. This structure of the present disclosure further reduces the material for manufacturing the armature, the material for manufacturing the moving spring, and the cost of the relay, and improves the competitiveness of the product. This structure of the present disclosure makes the moving spring and the armature easy to manufacture, and further reduces the manufacturing cost of the relay.
(62) A miniaturized anti-shock clapper-type relay of the present embodiment adopts that the retaining rib 2A is added to the bobbin 2, which is configured to supplement of a rib reinforcement of the bobbin, which can prevent the deformation of the bobbin. Since the retaining rib 2A is disposed between the knife edge 33 of the yoke iron and the pole surface of the iron core, conducive to isolating the material produced by contact ablation from the knife edge of the yoke iron.
(63) The present embodiment provides a relay capable of improving the stability of the double-contact moving spring. By improving the structure of the double-contact moving spring, the double-contact moving spring can reach a steady state more quickly when the relay is released and operated, thereby improving electrical life performance of the product.
(64) A relay with a double-contact moving spring of the related art is shown in
(65) Referring to
(66) In the present embodiment, the connecting part 57 is vertically connected between the free end parts of the two parts 55, 56 of the moving spring reed.
(67) In the present embodiment, the connecting part 57 is connected between the ends of the free end parts of the two parts 55, 56 of the moving spring reed.
(68) In the present embodiment, the connecting part 57 is vertically connected between the ends of the free end parts of the two parts 55, 56 of the moving spring reed.
(69) In the present embodiment, one end of the slot 54 extends to the junction of the moving spring reed 50 and the armature 7, and the other end of the slot 54 passes over a connecting line between centers of the two moving contacts 53.
(70) In the present embodiment, the moving contact 53 and the moving spring reed 50 are fixed by riveting, and of course, may be fixed by welding.
(71) In the present embodiment, the static contacts 112, 122 and corresponding static spring reeds 111, 112 are fixed by riveting, and of course, may be fixed by welding.
(72) A relay capable of improving the stability of the double-contact moving spring of the present embodiment adopts that a connecting part 57 is further provided between the free end parts of the two parts 55, 56 of the moving spring reed. The connecting part 57 is integrally connected between the free end parts of the two parts 55, 56 of the moving spring reed. This structure of the present disclosure, since the head parts of the bifurcated parts of the moving spring reed are connected to each other, in the vibration process, they play a role in mutual restraint, which makes that the double-contact moving spring can reach a steady state more quickly when the relay is released and operated, thereby improving electrical life performance of the product.
(73) The above contents are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure in any form. While the present disclosure has been described above in the preferred embodiments, it is not intended to limit the present disclosure. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present disclosure by using the above-disclosed technical contents, or modify to equivalent embodiments without departing from the scope of the technical solutions of the present disclosure. Therefore, any simple modifications, equivalent changes, and modifications to the above embodiments in accordance with the technical essence of the present disclosure should fall within the scope of the present disclosure.