MOTOR MODULE AND MOTOR MODULE COMPRISING THE SAME

Abstract

A motor module and a water-cooling pump having motor module are provided. The motor module has a combined first shell and second shell, a driving shaft mounted on the first shell and second shell, the stator assembly is mounted in the first shell, and the rotor assembly is mounted on the driving shaft. An opening of the first shell forms a first mounting portion, which can be mounted on or detached from a second mounting portion of the second shell via easy means. The modularized motor module can be mounted into a water machine via an opening of a shell and then a motor cover is mounted on the opening of the shell, and a drawing mechanism and pressured housing can be mounted at another end, so the assembling process is easy.

Claims

1. A motor module comprising: a first shell being hollow and having a first end, the first end forming an opening; a second shell being hollow and having a second end, the second end forming an opening; the second end detachably butted on the first end; a stator assembly mounted on an inner surface of the first shell; a driving shaft rotatably mounted in the first shell and the second shell; and a rotor assembly mounted on the driving shaft and corresponding to the stator assembly in location.

2. The motor module as claimed in claim 1, wherein: the first shell comprises: a first mounting portion around the opening of the first shell and a cross section of the first mounting portion being L-shaped; an enclosing board extending from the first mounting portion in a direction different from an extending direction of the first mounting portion; and an annular groove adjacent to the opening of the first shell; and the second shell comprises: a second mounting portion around the opening of the second shell and a cross section of the second mounting portion being L-shaped; and an annular protrusion adjacent to the opening of the second shell and engaging with the annular groove.

3. The motor module as claimed in claim 1, wherein: the first shell forms: a bearing seat located in the first shell and at a center of an end opposite the first end, the bearing seat of the first shell forming a through hole; the second shell forms: a bearing seat located in the second shell and at a center of an end opposite the second end, the bearing seat of the second shell forming a through hole; the motor module further comprises: two bearings respectively mounted on the bearing seat of the first shell and the bearing seat of the second shell; and one end of the driving shaft is mounted through the through hole of the bearing seat of the first shell and the bearing on the bearing seat of the first shell; another end of the driving shaft is mounted through the through hole of the bearing seat of the second shell and the bearing on the bearing seat of the second shell.

4. The motor module as claimed in claim 2, wherein: the first shell forms: a bearing seat located in the first shell and at a center of an end opposite the first end, the bearing seat of the first shell forming a through hole; the second shell forms: a bearing seat located in the second shell and at a center of an end opposite the second end, the bearing seat of the first shell forming a through hole; the motor module further comprises: two bearings respectively mounted on the bearing seat of the first shell and the bearing seat of the second shell; and one end of the driving shaft is mounted through the through hole of the bearing seat of the first shell and the bearing on the bearing seat of the first shell; another end of the driving shaft is mounted through the through hole of the bearing seat of the second shell and the bearing on the bearing seat of the second shell.

5. A water-cooling pump comprising: a water machine comprising: an impeller chamber at an end of the water machine; and a casing at another end of the water machine, the casing being hollow and forming an opening; the opening of the casing located away from the impeller chamber; a drawing mechanism in the impeller chamber; a pressured housing mounted on the water machine and sealing the impeller chamber; a motor cover being hollow and forming an opening at an end thereof; a plurality of fixing components mounted through the motor cover and the water machine such that the motor cover and the water machine are fixed on each other; and a motor module as claimed in claim 1 mounted on the water machine and in the casing via the opening of the casing; two ends of the first shell of the motor module sealed on the casing, one end of the driving shaft mounted through the impeller chamber and connected to the drawing mechanism; wherein a flow passage is formed between an outer surface of the first shell and an inner surface of the casing.

6. The water-cooling pump as claimed in claim 5, wherein: the motor cover comprises a first enclosing portion protruding outward in a radial direction and around the opening of the motor cover; and a second enclosing portion protruding in an axial direction and around the opening of the motor cover; the first shell of the motor module comprises: a first mounting portion around the opening of the first shell and a cross section of the first mounting portion being L-shaped; the first mounting portion located out of the second enclosing portion; the second shell of the motor module comprises: a second mounting portion around the opening of the second shell and a cross section of the second mounting portion being L-shaped; the second mounting portion located out of the second enclosing portion and mounted on the first mounting portion; the casing located out of the second enclosing portion, the first enclosing portion abutting an edge of the casing, an edge of the first mounting portion, and an edge of the second mounting portion.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 is a sectional view of a motor module of a water-cooling pump in accordance with the present invention;

[0012] FIG. 2 is a perspective view of the water-cooling pump in FIG. 1;

[0013] FIG. 3 is a sectional view of a part of the water-cooling pump in FIG. 2;

[0014] FIG. 4 is an enlarged sectional view of a part of the water-cooling pump in FIG. 2;

[0015] FIG. 5 is an exploded view of the water-cooling pump in FIG. 2;

[0016] FIG. 6 is another exploded view of the water-cooling pump in FIG. 2;

[0017] FIG. 7 is a sectional view of a prior art;

[0018] FIG. 8 is a sectional view of another prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] With reference to FIG. 1 and FIG. 2, a motor module 10 in accordance with the present invention comprises a first shell 11, a second shell 12, and a driving shaft 13. Both of the first shell 11 and the second shell 12 are hollow bodies. The first shell 11 has a first end and the second shell 12 has a second end, and the first end and the second end are detachably butted on each other. The driving shaft 13 is rotatably mounted on the first shell 11 and the second shell 12. One end of the driving shaft 13 is mounted through the first shell 11 and thus extends outward.

[0020] As shown in the drawings, in one preferred embodiment, the first end of the first shell 11 forms an opening. The first end of the first shell 11 is machined around the opening via the metal forming technology, so the first end is bent and thereby forms a first mounting portion 111 and an enclosing board 112 in sequence. A cross section of the first mounting portion 111 is L-shaped, such that the first shell 11 forms an annular groove adjacent to the opening of the first shell 11. The enclosing board 112 is bent outward from the first mounting portion 111, so the enclosing board 112 extends from the first mounting portion 111 and an extending direction of the enclosing board 112 differs from that of the first mounting portion 111. Another end of the first shell 11 that is opposite the first end is bent inward at a center, such that the first shell 11 forms a bearing seat 113. The bearing seat 113 has a through hole 114 formed at a bottom surface of the bearing seat 113. A bearing 115 is mounted on the bearing seat 113. A stator assembly 110 is mounted on an inner surface of the first shell 11.

[0021] The second end of the second shell 12 forms an opening. The second end of the second shell 12 is machined around the opening via the metal forming technology, so the second end is bent and thereby forms a second mounting portion 121. A cross section of the second mounting portion 121 is L-shaped, such that the second shell 12 forms an annular protrusion adjacent to the opening of the second shell 12. Another end of the second shell 12 that is opposite the second end is bent inward at a center, such that the second shell 12 forms a bearing seat 123. The bearing seat 123 has a through hole 122 formed at a bottom surface of the bearing seat. A bearing 124 is mounted on the bearing seat 123.

[0022] The driving shaft 13 is an elongate stick. A rotor assembly 130 is mounted on the driving shaft 13. One end of the driving shaft 13 is mounted through the bearing 115 that is mounted in the bearing seat 113 of the first shell 11, and another end is mounted on the bearing 124 that is mounted in the bearing seat 123 of the second shell 12.

[0023] The mounting structures of the first mounting portion 111 of the first shell 11 and the second mounting portion 121 of the second shell 12 are shown in the drawings. In the preferred embodiment, the annular groove of the first mounting portion 111 and the annular protrusion of the second mounting portion 121 engage with each other. Precisely, the first mounting portion 111 and the second mounting portion 121 are tightly fitted with each other.

[0024] In the present invention, the quality of the motor module 10 can be tested before the motor module 10 is installed on other components of a water-cooling pump. If meeting the standards, the motor module 10 is allowed to be installed on other components of a water-cooling pump. Therefore, because the motor module 10 is ensured to meet the standards prior to installation, the water-cooling pump including the motor module 10 may not have the defect as the conventional pump may have defects found after assembling is completed. Moreover, in the conventional pump, after the defects are found or the pump cannot work, reassembling and changing the flawed parts consume cost and manpower. As a result, if any defect of the motor module is found, the first shell 11 and the second shell 12 can be separated at the first mounting portion 111 and the second mounting portion 121 easily for repairing, so the cost and consumption of time and manpower are lower.

[0025] Please refer to FIG. 1, FIG. 2, and FIG. 3. A water-cooling pump is provided in accordance with the present invention. The water-cooling pump comprises the aforesaid motor module 10, a water machine 20, a pressured housing 30, and a motor cover 40. One end of the water machine 20 has an impeller chamber 21 and another end has a casing 22. The casing 22 is hollow and has an opening 221 away from the impeller chamber 21. The motor module 10 is mounted in the casing 22 via the opening 221. One end of the driving shaft 13 is mounted through the water machine 20 and located in the impeller chamber 21, and a drawing mechanism 200 is fixed on said end of the driving shaft 13. Two leak-proof rings are mounted on the casing 22 and correspond to the two ends of the first shell 11 in location. The first shell 11 is mounted on the casing 22 and thereby the two ends of the first shell 11 are sealed on the casing 22. The enclosing board 112 of the first shell 11 is capable of restricting the leak-proof ring. A flow passage 23 is formed between an inner surface of the casing 22 and an outer surface of the first shell 11. The flow passage 23 communicates with the impeller chamber 21 and thereby water can flow therein and cool the motor module 10. The means of flowing between the impeller chamber 21, the water machine 20, and the flow passage 23 are conventional, so there is no further description hereinafter.

[0026] The pressured housing 30 is mounted on the impeller chamber 21 of the water machine 20 and thereby the impeller chamber 21 is sealed. Thus, after the drawing mechanism 200 in the impeller chamber 21 is driven by the driving shaft 13, water may be drawn into the impeller chamber 21 and pressured and then discharged. The structure and function of the pressured housing 30 are conventional, so there is no further description hereinafter.

[0027] Then please refer to FIG. 3 and FIG. 4. The motor cover 40 is a hollow body and has an opening at an end. The motor cover 40 comprises a first enclosing portion 41 and a second enclosing portion 42. The first enclosing portion 41 protrudes outward in a radial direction and around the opening of the motor cover 40. The second enclosing portion 42 protrudes in an axial direction and around the opening of the motor cover 40. In a preferred embodiment as shown in the drawings, a cross section of the first enclosing portion 41 and the second enclosing portion 42 is L-shaped. The motor cover 40 is sleeved around the opening 221 of the casing 22. The casing 22 and the combined first mounting portion 111 and the second mounting portion 121 are located out of the second enclosing portion 42. The first enclosing portion 41 abuts an end of the casing 22, an end of the first mounting portion 111, and an end of the second mounting portion 121. Multiple fixing components 43 are mounted through the motor cover 40 and the water machine 20 such that the motor cover 40 and the water machine 20 are fixed on each other, and thereby the inner surface of the casing 22 is sealed on the outer surface of the first shell 11.

[0028] Then please refer to FIG. 5 and FIG. 6. With the aforesaid structure, the motor module 10 of the present invention is modularized and has passed the examination and complied with the quality requirement, then the motor module 10 is installed on other components of a pump. The end of the motor module 10 on which the driving shaft 13 is mounted is inserted into the casing 22 of the water machine 20 until a predetermined position, a portion of the driving shaft 13 that is in the impeller chamber 21 is mounted on the drawing mechanism 200, the pressured housing 30 is mounted on the impeller chamber 21, and the motor cover 40 is mounted on the other end of the water machine 20. Thus, the consumption of time and manpower to install the motor module 10 on the water machine 20 and the motor cover 40 or detach the motor module 10 from the water machine 20 and the motor cover 40 is reduced.

[0029] Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and features of the invention, the disclosure is illustrative only. Changes may be made in the details, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.