ARRANGEMENT FOR GUIDING ELECTRICAL CONNECTIONS THROUGH AN OPENING OF A HOUSING AND COMPRESSOR FOR A REFRIGERANT WITH AN ARRANGEMENT FOR GUIDING ELECTRICAL CONNECTIONS THROUGH AN OPENING OF A HOUSING

Abstract

An arrangement for guiding electrical connections through an opening of a housing for a device for driving a compressor, having a connection arrangement with at least one holding element and at least one electrically conductive connection element, is based on the object of indicating a solution which enables a simple and secure guiding of electrical connections through a housing, wherein the effort for the production and the assembly and the costs connected thereto are to be minimized and at the same time, the preciseness during assembly and thus the quality are to be improved. This object is achieved in that the holding element has one positioning means each on two opposite sides.

Claims

1. An arrangement for guiding electrical connections through an opening of a housing for a device for driving a compressor, the arrangement comprising a connection arrangement with at least one holding element and at least one electrically conductive connection element, wherein the connection arrangement is arranged over the opening on the housing such that the opening is closed, wherein the holding element has one positioning means each on two opposite sides.

2. The arrangement according to claim 1, wherein the holding element has a longitudinally extending shape with two longitudinal sides and two end sides, wherein the positioning means are respectively arranged on opposite end sides of the holding element.

3. The arrangement according to claim 2, wherein a respective reinforcement means which extends at least partially over a respective one of the longitudinal sides is arranged on the longitudinal sides of the holding element.

4. The arrangement according to claim 1, wherein the positioning means have a rectangular or a triangular or an at least partially round, in particular circular shape, wherein the round shape of the positioning means has a fixed radius.

5. The arrangement according to claim 1, wherein the holding element of the connection arrangement is arranged on the housing, wherein the positioning means are form-fittingly arranged on guiding means formed on the housing.

6. The arrangement according to claim 2, wherein the holding element has through bores in the region of the end sides for receiving attachment means for fixing the holding element on the housing.

7. The arrangement according to claim 3, wherein the reinforcement means has a first partial strip and a second partial strip.

8. The arrangement according to claim 5, wherein the positioning means are embodied in a rectangular, triangular or at least partially round shape corresponding to the guiding means.

9. The arrangement according to claim 5, wherein the guiding means are embodied as cylindrical elements arranged in pairs.

10. The arrangement according to claim 1, wherein a shape element is arranged between the holding element and the electrically conductive connection element.

11. The arrangement according to claim 3, wherein notches are formed between the reinforcement means and the end sides of the holding element.

12. The compressor for a refrigerant with the arrangement for guiding through electrical connections for the device for driving the compressor according to claim 1, wherein the housing (14) has the opening (15) via which the connection arrangement is arranged, such that the opening is closed.

13. The compressor according to claim 12, wherein the housing has guiding means, in which the positioning means of the connection arrangement are arranged, in a region of the opening.

14. The compressor according to claim 13, wherein the guiding means arranged in the region of the opening of the housing are formed through the housing or on the housing.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0057] Further details, features and advantages of designs of the invention result from the following description of example embodiments with reference to the accompanying drawings. Wherein:

[0058] FIG. 1: a connection arrangement of the state of the art in a perspective view,

[0059] FIG. 2: an excerpt from a housing of a refrigerant compressor with an opening for guiding through electrical connections,

[0060] FIGS. 3A and 3B: a connection arrangement with a holding element and connection elements in perspective views,

[0061] FIGS. 4A to 4C: the connection arrangement with different embodiments of reinforcement means in a respective side view,

[0062] FIGS. 5A and 5B: the connection arrangement from FIGS. 3A and 3B on the opening of the housing and in the state assembled on the housing,

[0063] FIG. 5C the connection arrangement after the assembly on the housing of the refrigerant compressor in a sectional view,

[0064] FIGS. 6A and 6B: different embodiments of positioning means formed on the holding element of the connection arrangement and in connection with complementarily formed guiding means on the housing, and

[0065] FIG. 7: different embodiments of positioning means on the holding elements with corresponding guiding means.

DESCRIPTION OF AN EMBODIMENT OF THE INVENTION

[0066] FIG. 1 shows a connection arrangement 1′ of the state of the art in a perspective view. The connection arrangement 1′ is part of an arrangement for guiding electrical connections through an opening of a non-represented housing for a device for driving a compressor.

[0067] The connection arrangement 1′, which has a quadrangular, in particular a squared or a rectangular holding element 2′ in top view, is formed with four through bores 9 for receiving attachment element, specifically screws. The holding element 2′ and thus the connection arrangement 1′ is fixed on the non-represented housing of the electrically driven refrigerant compressor by means of the attachment means.

[0068] The connection arrangement 1′ has three electrically conductive connection element 3 which are arranged in the holding element 2′ such that a respective first region 4 of the electrically conductive connection elements 3 protrudes from a first side of the holding element 2′, while a respective second region 5 of the electrically conductive connection elements 3 protrudes on a second side of the holding element 2′ opposite to the first side.

[0069] As an example, the connection elements 3 are respectively fixed in the holding element 2′ through shape elements 8 in a fixed and fluid-tight manner.

[0070] The first electrically conductive connection elements 3, with the respective first regions 4, are connected to a non-represented voltage source, such as an inverter, for example. With the second regions 5, the electrically conductive connection elements 3 can respectively be connected to a load arranged in the fluid-tight housing, for example. The load can be an electric motor arranged in the housing of the refrigerant compressor which drives a compression unit, in particular a scroll compressor.

[0071] FIG. 2 shows a housing 14 of the refrigerant compressor with an opening 15 for guiding through electrical connections. The opening 15 is formed such that a non-represented holding element 2 of the connection arrangement 1 with three electrically conductive connection elements 3 can be arranged within the opening 15. The second region 5 of the three electrically conductive connection elements 3 is arranged in the interior of the housing 14 of the refrigerant compressor. In a first embodiment, the housing 14 has guiding means 16 in the region of the opening 15.

[0072] In FIGS. 3A and 3B, a connection arrangement 1 with a holding element 2 and three electrically conductive connection elements 3 are respectively represented in a perspective view, in particular from two different sides. The holding element 2 has a longitudinally extending, nearly rectangular shape. A respective reinforcement means 7 is formed on the two opposite longitudinal sides 6.

[0073] The three electrically conductive connection elements 3 arranged along a longitudinal axis 17 of the holding element 2 oriented in the longitudinal direction are respectively fixed in the holding element 2 in a fixed and fluid-tight manner through shape elements 8.

[0074] The holding element 2 of the connection arrangement 1 has, in the region of opposite end sides 10, respectively one through bore 9 for receiving the attachment elements which are provided for fixing the connection arrangement 1 over the non-represented opening 15 of the housing 14. Screws, which are not represented either, can be used for attachment.

[0075] Additionally, positioning means 11, which are represented framed by means of a circular dotted line for clarity, are formed on the opposite end sides 10 of the holding element 2.

[0076] The positioning means 11 have an at least partially round, in particular circular shape with a fixed radius. The non-represented housing 14 on which the connection arrangement 1 is fixed, is formed with corresponding guiding means 16 shaped complementarily to the positioning means 11 of the holding element 2 and which correspond to an also at least partially round, in particular circular shape with the same fixed radius as the counter piece to the positioning means 11.

[0077] Notches 18 are provided between the reinforcement means 7 and the end sides 10 of the holding element 2. These notches 18 prevent the transfer of bending forces created during the production of the reinforcement means 7 by means of chamfering into the region of the end sides 10 of the holding element 2 and resulting deformations in the regions of the end sides 10.

[0078] FIGS. 4A to 4C reveal the connection arrangement 1 with different embodiments of the reinforcement means 7 in a respective side view. In the representation of FIGS. 4A to 4C, respectively one of the three electrically conductive connection elements 3 guided through the holding element 2 with the associated shape element 8 is visible.

[0079] The first region 4 of the electrically conductive connection element 3 protrudes on the first side of the holding element 2, while the second region 5 of the electrically conductive connection element 3 protrudes from the second side of the holding element 2 opposite the first side.

[0080] The respective reinforcement means 7 are formed on the longitudinal sides 6 of the holding element 2. The reinforcement means 7 arranged opposite to one another respectively have a first partial strip 12 which is produced through a simple chamfering on the longitudinal sides 6 of the holding elements 2, as represented in FIG. 4A.

[0081] The oppositely arranged reinforcement means 7 in FIGS. 4B and 4C respectively have a first partial strip 12 and a second partial strip 13.

[0082] The respective first partial strip 12 has an orientation at an angle of about 90 degrees to the surface of the holding element 2, while the second partial strip 13 is respectively arranged in parallel to the surface of the holding element 2. The first partial strips 12 are chamfered towards a common side of the holding element 2. The second partial strips 13 are respectively oriented to the outside. A restriction to this formation shape of the reinforcement means 7 is not intended.

[0083] The differences of the embodiments of the connection arrangements 1 of FIGS. 4B and 4C are in the formation of the reinforcement means 7, in particular the transition regions between the partial strips 12, 13. The transition regions between the partial strips 12, 13 of the embodiment according to FIG. 4B do not have any radii or chamfers, while the transition regions between the partial strips 12, 13 of the embodiment according to FIG. 4C are respectively formed with a radius and a chamfer.

[0084] FIGS. 5A and 5B respectively show the connection arrangement 1 from FIGS. 3A and 3B and the housing 14 of the refrigerant compressor. In FIG. 5A, the connection arrangement 1 over the opening 15 of the housing 14 of the refrigerant compressor, which is represented in excerpts, is represented before and during an assembly step. During the assembly step, the electrically conductive connection elements 3 arranged in the holding element 2, with the second regions 5, are oriented in the direction of the provided recesses of the opening 15 and the connection arrangement 1 is arranged on the opening 15, such that the opening 15 is closed. The exact positioning of the connection arrangement 1 over the opening 15 is via the cooperation of the positioning means 11 arranged on the holding element 2 which are positioned to fit to the guiding means 16 arranged on the housing 14.

[0085] For a fluid-tight connection, a non-represented shaped seal which is formed from an elastomer, for example, is arranged between the holding element 2 of the connection arrangement 1 and the housing 14.

[0086] For the fluid-tight arrangement of the connection arrangement 1 over the opening 15 on the housing 14, corresponding attachment means are used, such as the screws represented in FIGS. 5A and 5B, with which the connection arrangement 1 is fixedly pressed to the housing 14. While FIG. 5A shows the attachment means, such as screws, before the introduction into the through bores 9 of the holding element 2, FIG. 5B represents the state after the assembly in which the connection arrangement 1 is screwed in a manner fixedly pressed to the housing 14.

[0087] After the assembly step, the second region 5 of the electrically conductive connection elements 3, which is then arranged inside fluid-tight housing 14 of the refrigerant compressor, is connected to a load, such as the electric motor of the refrigerant compressor, in an electrically conductive manner. After the assembly step, the electrically conductive connection elements 3, with the second region 5, which is then arranged inside fluid-tight housing 14 of the refrigerant compressor, are connected to a load, such as the electric motor of the refrigerant compressor, in an electrically conductive manner.

[0088] For a time-saving and precise assembly, the positioning means 11 arranged on opposite end sides 10 of the holding element 2 have a predetermined shape which corresponds to the shape of the guiding means 16 arranged or shaped on the housing 14 in the region of the opening 15. In the example of FIGS. 5A and 5B, the positioning means 11 and the guiding means 16 are respectively formed in a round shape with a fixed radius.

[0089] FIG. 5C shows the connection arrangement 1 after the assembly on the housing 14 of the refrigerant compressor in a sectional view. For a fluid-tight connection, the holding element 2 is fixedly pressed to the housing 14 with two attachment elements, such as screws, inserted into the through bores 9. Additionally, a shaped seal 19, which is formed from an elastomer, for example, is arranged between the holding element 2 of the connection arrangement 1 and the housing 14.

[0090] After the assembly step, the three electrically conductive connection elements 3 represented in FIG. 5C, with the second regions 5, which are arranged inside the fluid-tight housing 14 of the refrigerant compressor, are respectively connected to first terminals 20 of a load, such as the electric motor of the refrigerant compressor, in an electrically conductive manner. The first terminals 20, on the other hand, are coupled to stator windings of the electric motor of the refrigerant compressor, for example. Additionally, after the assembly, the three electrically conductive connection elements 3, with the first regions 4 arranged outside the fluid-tight housing 14, are connected to second terminals 21 of a circuit board 22 of an inverter controlling the electric motor in an electrically conductive manner, for example.

[0091] FIGS. 6A and 6B show different embodiments of positioning means 11 formed on the holding element 2 of the connection arrangement 1. In FIG. 6A, different embodiments of the positioning means 11 are represented, which can be formed, for example, with a round or semicircular, a longitudinally extending and round, a rectangular and a triangular formation.

[0092] In FIG. 6B, the positioning means 11 of the holding elements 2, in corresponding interaction of the different embodiments, are respectively represented with the associated guiding means 16 attached to the housing 14 or formed complementarily as the counter piece.

[0093] In FIG. 7, different embodiments of positioning means 11 of FIGS. 6A and 6B formed on the holding elements 2 are represented as an example. In contrast to the representation of FIG. 6B, in FIG. 7, the guiding means 16 are respectively formed as the counter piece to the positioning means 11 through cylindrical elements arranged in pairs, which rest on the shape formed by the positioning means 11 only in regions or at specific points. With such a formation of the guiding means 16 as well, a time-saving and precise assembly of the connection arrangement 1 over an opening 15 of the housing 14 is achieved.

LIST OF REFERENCE NUMERALS

[0094] 1, 1′ connection arrangement [0095] 2, 2′ holding element [0096] 3 connection element [0097] 4 first region [0098] 5 second region [0099] 6 longitudinal sides [0100] 7 reinforcement means [0101] 8 shape element [0102] 9 through bore [0103] 10 end sides [0104] 11 positioning means [0105] 12 first partial strip [0106] 13 second partial strip [0107] 14 housing [0108] 15 opening [0109] 16 guiding means [0110] 17 longitudinal axis [0111] 18 notch [0112] 19 shaped seal [0113] 20 first terminals [0114] 21 second terminals [0115] 22 circuit board