CN219106537U

CN219106537U - High-voltage connection assembly

Info

Publication number: CN219106537U
Application number: CN202320147653.7U
Authority: CN
Inventors: 杨志金; 霍安超; 徐峻; 韩亚飞
Original assignee: Vitesco Automotive Tianjin Co Ltd
Current assignee: Vitesco Automotive Tianjin Co Ltd
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-05-30
Anticipated expiration: 2033-01-16

Abstract

The utility model discloses a high-voltage connection assembly, which comprises: the first terminal group is connected with the motor; a second terminal group mated with the first terminal group, the second terminal group being connected with the inverter; the connecting unit is arranged on the first terminal group so as to electrically connect the first terminal group and the second terminal group; the first terminal group comprises a first connecting part, wherein the first connecting part is provided with a plurality of through holes which are arranged at intervals along a first direction, and fixing units which are arranged at intervals along the circumference of each of the plurality of through holes; the connecting unit is clamped with the fixing unit, and the second terminal group passes through the connecting unit along the second direction and is connected with the connecting unit so as to enable the motor to be connected with the inverter at high voltage; the first direction intersects the second direction. The utility model can reduce the number of parts, reduce the cost, reduce the assembly steps and improve the working efficiency.

Description

High-voltage connection assembly

Technical Field

The utility model relates to the technical field of electrical connection devices, in particular to a high-voltage connection assembly.

Background

The inverter is connected to the high voltage electricity between the motors by conventional terminal plane contact assembly and then clamped by screws. In order to realize the screw tightening function, a hole is reserved on the motor shell, after the screw tightening process is completed, the motor shell is plugged by a sealing cover, and then the sealing cover is fixed on the motor shell by adopting the screw tightening process again. The scheme has the advantages of large number of parts, high cost, complex assembly process steps and easy leakage at the sealing cover.

Disclosure of Invention

The utility model aims to solve the problems of the high-voltage electric connection scheme that the number of parts is large and the assembly process steps are complex. The utility model provides a high-voltage connecting assembly, which can reduce the number of parts, reduce the cost, reduce the assembly steps and improve the working efficiency.

In order to solve the above technical problems, an embodiment of the present utility model discloses a high voltage connection assembly, including: the first terminal group is connected with the motor; a second terminal group mated with the first terminal group, the second terminal group being connected with an inverter; a connection unit provided to the first terminal group so as to electrically connect the first terminal group and the second terminal group; the first terminal group comprises a first connecting part, wherein the first connecting part is provided with a plurality of through holes which are arranged at intervals along a first direction, and fixing units which are arranged at intervals along the circumferential direction of each through hole; the connecting unit is clamped with the fixing unit, and the second terminal group passes through the connecting unit along a second direction to be connected with the first terminal group so as to enable the motor to be connected with the inverter at high voltage; the first direction intersects the second direction.

By adopting the technical scheme, the other end of the first terminal group is designed to be the first connecting part, and the connecting unit is clamped on the fixing unit of the first connecting part, so that the other end of the second terminal group extending along the second direction can penetrate through the connecting unit along the second direction, and the first terminal group and the second terminal group are connected. The number of parts and assembly steps can be reduced, a sealing structure is not needed, the leakage risk of the whole machine is reduced, and the compensation of the part accumulation tolerance between the terminals is realized.

According to another embodiment of the present utility model, a high voltage connection assembly is disclosed, wherein the first direction is perpendicular to the second direction.

According to another embodiment of the present utility model, the first terminal group includes three first terminals spaced apart along the first direction, and the three first terminals are connected to the first connection part.

According to another specific embodiment of the present utility model, there is provided a high-voltage connection assembly, wherein three fixing units are disposed at intervals in a circumferential direction of any one of the through holes, each of the three fixing units is disposed along the second direction on a side of the first connection portion facing the second terminal group, the second terminal group includes three second terminals disposed at intervals along the first direction, and the three second terminals are connected to the three first terminals by penetrating through the connection units along the second direction.

According to another specific embodiment of the present utility model, there is provided a high-voltage connection assembly, wherein three fixing units are circumferentially spaced from any one of the through holes, each of the three fixing units is disposed on a side of the first connection portion facing away from the second terminal group along the second direction, the second terminal group includes three second terminals spaced from each other along the first direction, and the three second terminals pass through the corresponding plurality of through holes and the connecting unit along the second direction to be connected with the three first terminals.

According to another specific embodiment of the utility model, the embodiment of the utility model discloses a high-voltage connecting assembly, one end of the fixing unit is fixedly connected with the inner wall of the through hole, and the other end of the fixing unit is provided with a clamping part which is elastically clamped with the connecting unit so as to limit the radial movement of the connecting unit relative to the fixing unit along the connecting unit.

According to another specific embodiment of the present utility model, a high voltage connection assembly is disclosed, wherein second connection portions are disposed in gaps in the first direction of the three second terminals, and the second connection portions are used for connecting adjacent second terminals.

According to another embodiment of the present utility model, a high voltage connection assembly is disclosed, wherein the motor and the inverter together define a receiving cavity such that the first terminal set and the second terminal set are connected within the receiving cavity.

According to another embodiment of the utility model, a high-voltage connection assembly is disclosed, the connection unit being a ring spring.

According to another embodiment of the present utility model, a high voltage connection assembly is disclosed, wherein the plurality of through holes includes three through holes, and the three through holes are in one-to-one correspondence with the three second terminals.

Drawings

Fig. 1 (a) shows a perspective view of a high-voltage connection assembly according to an embodiment of the present utility model, and fig. 1 (b) shows a cross-sectional view of the high-voltage connection assembly.

Fig. 2 is a perspective view showing a first terminal group, a second terminal group and a connection unit of the high voltage connection assembly according to the embodiment of the present utility model, wherein the fixing unit is provided at a side of the first connection portion facing the second terminal group.

Fig. 3 shows a side view of the first terminal set, the second terminal set and the connection unit of the high voltage connection assembly according to the embodiment of the utility model, wherein the fixing unit is arranged at the side of the first connection part facing away from the second terminal set.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The following description contains many specific details for the purpose of providing a thorough understanding of the present utility model. The utility model may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.

The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 (a) and (b), the present application provides a high voltage connection assembly comprising: a first terminal group 10, a second terminal group 20, and a connection unit 30. Wherein, referring to (b) of fig. 1, one end 101 of the first terminal group 10 is connected to the motor 40. The second terminal group 20 is mated with the first terminal group 10, and one end 201 of the second terminal group 20 is connected to the inverter 50.

Referring to fig. 2, the connection unit 30 is provided at the other end 102 of the first terminal group 10. The first terminal group 10 and the second terminal group 20 are electrically connected by the connection unit 30. Illustratively, the connection unit 30 is sleeved on the other end 202 of the second terminal set 20 connected to the inverter so as to connect the second terminal set 20 to the other end 102 of the first terminal set connected to the motor.

With continued reference to fig. 2, the first terminal set 10 includes a first connection portion 11, where the first connection portion 11 is disposed at the other end 102 of the first terminal set. The first connection portion 11 is provided with a plurality of through holes 111 arranged at intervals in a first direction (as shown in an X direction in fig. 2), and fixing units 112 arranged at intervals in a circumferential direction of each of the plurality of through holes 111 (as shown in a B direction in fig. 2), and the connection unit 30 is engaged with the fixing units 112. Illustratively, the connection unit 30 is a ring spring, and the fixing unit 112 fixes the connection unit 30 at one side of the first connection part 11, and the other end 202 of the second terminal group 20 is connected to the first terminal group 10 through the connection unit 30 in a second direction (as shown in a Y direction in fig. 2) to connect the motor and the inverter at high voltage.

The first direction (shown as X direction in fig. 2) is an arrangement direction of the through holes 111 on the first connection portion 11, and the second direction (shown as Y direction in fig. 2) is an extension direction of the other end 202 of the second terminal group 20, the first direction intersecting the second direction. In other embodiments, referring to fig. 2, the first direction (shown as the X direction in fig. 2) is perpendicular to the second direction (shown as the Y direction in fig. 2).

To sum up, the present application designs the other end 102 of the first terminal set as the first connecting portion 11, and clips the connecting unit 30 onto the fixing unit 112 of the first connecting portion 11, so that the other end 202 of the second terminal set extending along the second direction can pass through the connecting unit 30 along the second direction, thereby connecting the first terminal set 10 and the second terminal set 20. The assembly process is simple, and only after the connection unit 30 is mounted on the fixing unit 112, the other end 202 of the second terminal set is pressed into the connection unit 30, so that the first terminal set 10 and the second terminal set 20 are connected. Compared with the prior art, the high-voltage connecting assembly has the advantages of small number of parts and simple assembly; a sealing structure is not needed, so that the leakage risk of the whole machine is reduced; compensation of part accumulation tolerances between the terminals is achieved by the annular spring structure.

In some possible embodiments, referring to fig. 2, the first terminal group 10 includes three first terminals 12 disposed at intervals along the first direction (as shown in the X direction in fig. 2), and the three first terminals 12 are connected to the first connection part 11. Illustratively, with continued reference to fig. 2, three extended first terminals 12 are located at one end 101 of the first terminal group, respectively connected to the first connection portions 11, and in one-to-one correspondence with the plurality of through holes 111 on the first connection portions 11.

In other embodiments, the first terminal 12 may have other corresponding structures, which are not limited in the present utility model, and may be reasonably arranged according to actual needs, so long as the connection between the first terminal group and the second terminal group can be ensured.

In some possible embodiments, referring to fig. 2, three fixing units 112 are provided at intervals in the circumferential direction (as shown in the direction B in fig. 2) of any one of the through holes 111. The three fixing units 112 are each provided on a side of the first connection portion 11 facing the second terminal group 20 in the second direction (as shown in the Y direction in fig. 2). The second terminal group 20 includes three second terminals 21 disposed at intervals in a first direction (shown as an X direction in fig. 2), and the three second terminals 21 are connected to the three first terminals 12 through the connection unit 30 in a second direction (shown as a Y direction in fig. 2). Illustratively, the second terminals 21 of the second terminal group are connected through the connecting units 30 which are snapped with the fixing units provided on the corresponding through holes. In the second direction (as shown in the Y direction in fig. 2), the connection unit 30 is located between the second terminal 21 and the first connection portion 11. The first terminals 12 are connected to the first connection portions 11, and the connection unit 30 is connected to the first connection portions 11, so that the three second terminals 21 are connected to the three first terminals 12. Illustratively, there are three through holes 111, which are respectively in one-to-one correspondence with the three second terminals 21.

In some possible embodiments, referring to fig. 2, three fixing units 112 are provided at intervals in the circumferential direction (as shown in the direction B in fig. 2) of any one of the through holes 111. Referring to fig. 3, the three fixing units 112 are disposed on a side of the first connection portion 11 facing away from the second terminal set 20 along the second direction (as shown in the Y direction in fig. 3). With continued reference to fig. 2, the second terminal group 20 includes three second terminals 21 disposed at intervals along the first direction (as shown in the X direction in fig. 2), and the three second terminals 21 pass through the corresponding plurality of through holes 111 and the connection unit 30 along the second direction (as shown in the Y direction in fig. 2) to be connected with the three first terminals 12. Illustratively, the second terminals 21 of the second terminal group pass through the connection units 30 engaged with the fixing units provided on the corresponding through holes, and are connected with the connection units 30. Referring to fig. 3, in the second direction (as shown in the Y direction in fig. 3), the first connection part 11 is located between the connection unit 30 and the second terminal 21, i.e., the second terminal 21 is sleeved on the second terminal 21 by the connection unit 30 after passing through the through hole 111. The first terminals 12 are connected to the first connection portions 11, and the connection unit 30 is connected to the first connection portions 11, so that the three second terminals 21 are connected to the three first terminals 12.

In other embodiments, the first connection portion 11 and the second terminal 21 may have other corresponding structures, which are not limited to this, and may be reasonably arranged according to actual needs, so long as the second terminal 21 can be ensured to be connected to the first terminal 12 through the connection unit.

In some possible embodiments, referring to fig. 2, one end 1121 of the fixing unit 112 is fixedly coupled with the inner wall of the through hole 111. Referring to fig. 3, the other end 1122 is provided with a locking portion 1123, and the locking portion 1123 is elastically locked with the connection unit 30 to limit movement of the connection unit 30 relative to the fixing unit 112 in a radial direction (as shown in a D direction in fig. 3) of the connection unit 30. Illustratively, referring to fig. 2, the fixing units 112 are disposed at intervals along the circumferential direction of the through hole 111, and the snap-fit portions 1123 having elasticity are snapped with the connection units 30 so that the second terminals 21 can pass through the connection units 30 in the second direction (as shown in the Y direction in fig. 2) and are connected with the connection units 30. In other embodiments, the structure of the locking portion 1123 may have other corresponding forms, which is not limited in the present utility model, and may be reasonably arranged according to actual needs, so long as the locking portion 1123 can be ensured to be capable of locking the connection unit 30 to the fixing unit 112.

In some possible embodiments, the second connection portions 22 are provided in the gaps 211 in the first direction (as shown in the X direction in fig. 2) of the three second terminals 21. Illustratively, referring to fig. 2, each second connection portion 22 is used to connect adjacent second terminals 21, so that it is easier to press a plurality of second terminals 21 in the second terminal group into the connection unit 30 in one-to-one correspondence during assembly.

Referring to fig. 1, the motor 40 and the inverter 50 together define a receiving cavity 60 such that the first terminal set 10 and the second terminal set 20 are connected within the receiving cavity 60. The existing scheme also needs to install the sealing cover outside the high-voltage connecting component, so that the complexity of the assembly process is increased, more parts are used, and the cost is increased. Meanwhile, leakage is easy to occur at the sealing cover. The connecting unit 30 is clamped on the first connecting part 11 of the first terminal group 10, so that the second terminal group 20 can be easily pressed into the connecting unit 30, and the motor and the inverter can be assembled more simply and conveniently; not only saving parts, but also reducing assembly steps; screws and sealing end covers are not needed, so that the cost is reduced; the sealing structure is not arranged, so that the leakage risk of the whole machine is reduced; by using a ring spring as the connection unit 30, compensation of the tolerance stack-up of the inter-terminal parts can also be achieved.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.

Claims

1. A high voltage connection assembly, comprising:

the first terminal group is connected with the motor;

a second terminal group mated with the first terminal group, the second terminal group being connected with an inverter;

a connection unit provided to the first terminal group so as to electrically connect the first terminal group and the second terminal group; wherein,,

the first terminal group comprises a first connecting part, wherein the first connecting part is provided with a plurality of through holes which are arranged at intervals along a first direction, and fixing units which are arranged at intervals along the circumferential direction of each through hole;

the connecting unit is clamped with the fixing unit, and the second terminal group passes through the connecting unit along a second direction to be connected with the first terminal group so as to enable the motor to be connected with the inverter at high voltage;

the first direction intersects the second direction.

2. The high voltage connection assembly of claim 1, wherein the first direction is perpendicular to the second direction.

3. The high voltage connection assembly of claim 1, wherein the first terminal set includes three first terminals spaced apart along the first direction, the three first terminals being connected to the first connection portion.

4. The high-voltage connection assembly according to claim 1, wherein three fixing units are provided at intervals in the circumferential direction of any one of the through holes, the three fixing units are provided along the second direction on one side of the first connection portion facing the second terminal group, the second terminal group includes three second terminals provided at intervals along the first direction, and the three second terminals are connected to the three first terminals by penetrating through the connection units along the second direction.

5. The high-voltage connection assembly according to claim 1, wherein three fixing units are provided at intervals in the circumferential direction of any one of the through holes, the three fixing units are provided on a side of the first connection portion facing away from the second terminal group in the second direction, the second terminal group includes three second terminals provided at intervals in the first direction, and the three second terminals pass through the corresponding plurality of through holes and the connecting units in the second direction to be connected with the three first terminals.

6. The high-voltage connection assembly according to claim 4 or 5, wherein one end of the fixing unit is fixedly connected with the inner wall of the through hole, and the other end of the fixing unit is provided with a clamping portion, and the clamping portion is elastically clamped with the connecting unit so as to limit the radial movement of the connecting unit relative to the fixing unit along the connecting unit.

7. The high voltage connection assembly according to claim 4 or 5, wherein second connection portions for connecting adjacent ones of the second terminals are provided in gaps in the first direction of the three second terminals.

8. The high voltage connection assembly of claim 1, wherein the motor and the inverter together define a receiving cavity such that the first terminal set and the second terminal set are connected within the receiving cavity.

9. The high voltage connection assembly of claim 1, wherein the connection unit is a ring spring.

10. The high voltage connection assembly of claim 4 or 5, wherein the plurality of through holes includes three, the three through holes being in one-to-one correspondence with the three second terminals.