CN219576022U

CN219576022U - High-voltage connection socket, power battery pack and electric automobile

Info

Publication number: CN219576022U
Application number: CN202320220716.7U
Authority: CN
Inventors: 李士爱; 华贤卫; 张思源
Original assignee: Zhejiang Zero Run Technology Co Ltd; Zhejiang Lingxiao Energy Technology Co Ltd
Current assignee: Zhejiang Zero Run Technology Co Ltd; Zhejiang Lingxiao Energy Technology Co Ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-08-22
Anticipated expiration: 2033-01-17

Abstract

The utility model relates to a high-voltage connection socket, a power battery pack and an electric automobile, wherein the high-voltage connection socket comprises: the main seat body, the mounting piece and the sealing gasket. The main seat body comprises a fitting part and an external connection part connected with the fitting part. The laminating portion is equipped with first mounting hole. The mounting member is provided with a second mounting hole. The second mounting hole and the first mounting hole are used for mounting fasteners. The sealing gasket is propped between the attaching part and the mounting piece together with the wall plate of the box body. Because the fastener is fixed through the first mounting hole on the laminating portion and the second mounting hole on the mounting, and the second mounting hole is formed on the mounting in advance, and support between mounting and the wallboard and hold the contact, therefore before the fastener screw thread wears to establish in the second mounting hole, compression deformation can not take place for the mounting, the shape of second mounting hole can remain stable, and each fastener can be connected between mounting and laminating portion perpendicularly, has reduced the cooperation gap of wallboard both sides to make high-pressure connection socket periphery have good waterproof nature.

Description

High-voltage connection socket, power battery pack and electric automobile

Technical Field

The utility model relates to the technical field of power batteries, in particular to a high-voltage connection socket, a power battery pack and an electric automobile.

Background

With the great popularization of the new energy field by the country, the electric automobile is already a trend. The power battery pack can be said to be the core of the electric automobile and is mainly responsible for providing power for the electric automobile.

The power battery pack is formed by connecting a plurality of batteries in series and parallel. The electric automobile may receive inflow of rainwater or road area water in the process of traveling, so the power battery pack needs to have certain tightness, otherwise, short circuit is easy to occur in the battery pack.

The high-voltage connection socket of the power battery pack needs to be embedded in the wall plate of the box body and fixed on the wall plate. Conventional solutions generally mount a blind rivet nut on the wall plate of the box body, and utilize the blind rivet nut to abut against a screw, which fixes the high-voltage connection socket on the wall plate. However, since the rivet nut is compressed and extruded by metal during the installation process, the rivet nut may be skewed or compressed in place after installation, leaving a certain fit gap, and thus the waterproof property of the high-voltage connection socket periphery may be affected.

Disclosure of Invention

Accordingly, it is necessary to provide a high-voltage connection socket, a power battery pack, and an electric vehicle, which are prone to problems of the high-voltage connection socket being affected by the distortion or the insufficient compression of the rivet nut when the high-voltage connection socket is fixed to a wall plate of a case.

A high voltage connection socket comprising:

the main seat body comprises a fitting part and an external connection part connected with the fitting part; the attaching part is provided with a first mounting hole;

the mounting piece is provided with a second mounting hole; the second mounting holes are positioned corresponding to the first mounting holes, and the second mounting holes and the first mounting holes are used for mounting fasteners; a kind of electronic device with high-pressure air-conditioning system

The sealing gasket is propped between the attaching part and the mounting piece together with the wall plate of the box body; the gasket is disposed about the opening of the wall plate.

According to the high-voltage connecting socket, the main base body is propped against the outer side of the wall plate of the box body through the binding part, so that the external connection part is kept on the outer side of the wall plate. The external connection part is used for electrically butting with a conductor, a terminal or a joint outside the box body. The mounting piece is positioned on the inner side of the wallboard and is kept relatively fixed with the attaching part through a fastener. The sealing gasket is abutted between the wall plate and the attaching part or between the wall plate and the mounting piece, and fills the gap on one side of the wall plate through deformation to limit water from entering the box body through the gap on one side of the wall plate. The gasket surrounds an opening in the wall plate for interfacing with the main housing. Because the fastener is fixed through the first mounting hole on the laminating portion and the second mounting hole on the mounting, and the second mounting hole is formed on the mounting in advance, and support between mounting and the wallboard and hold the contact, therefore before the fastener screw thread wears to establish in the second mounting hole, compression deformation can not take place for the mounting, the shape of second mounting hole can remain stable, and each fastener can be connected between mounting and laminating portion perpendicularly, has reduced the cooperation gap of wallboard both sides to make high-pressure connection socket periphery have good waterproof nature.

In one embodiment, one end of the second mounting hole, which is opposite to the attaching portion, is closed.

In one embodiment, a limiting groove is formed on one side of the mounting piece facing the attaching part; the limit groove is used for partially accommodating the sealing gasket; the shape of the limit groove corresponds to the sealing gasket.

In one embodiment, the mounting member includes an inner plate portion and a cylindrical portion connected to the inner plate portion; the second mounting hole is formed in the cylindrical portion; the thickness of the cylindrical portion is greater than the thickness of the inner plate portion.

In one embodiment, the gasket is formed with an annular flange; the annular flange is disposed around the cylindrical portion; the annular flange is used for abutting between the inner plate part and the wall plate.

In one embodiment, a first repairing flange is arranged on one side of the sealing gasket facing the fitting part; the first repair flange is distributed around the opening of the wall panel and is used for supporting the wall panel.

In one embodiment, the main seat further comprises an inner joint part connected to the fitting part; the mounting piece is provided with a first through groove; the sealing gasket is provided with a second through groove; the inner connecting part is arranged in the first through groove and the second through groove in a penetrating mode.

In one embodiment, the outer edges of the attaching portion and the mounting piece are respectively rectangular; the first mounting holes are distributed in the corner areas of the attaching parts; the second mounting holes are distributed in the corner areas of the mounting piece.

A power battery pack includes a high voltage connection socket.

An electric automobile comprises a power battery pack.

Drawings

Fig. 1 is a schematic perspective view of a high voltage connection socket according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of the high voltage connection socket of FIG. 1 at another angle;

FIG. 3 is a partial schematic view of the high voltage connection socket shown in FIG. 2;

FIG. 4 is an exploded view of the high voltage connection jack shown in FIG. 2;

FIG. 5 is an exploded view of the high voltage connection receptacle of FIG. 2 at another angle;

fig. 6 is a partially exploded view of the high voltage connection socket of fig. 5 with the mounting member separated from the gasket.

Reference numerals: 100. a high voltage connection socket; 20. a main seat body; 21. a bonding part; 22. an external connection part; 23. a first mounting hole; 24. a second repair flange; 25. an inner joint part; 30. a mounting member; 31. a second mounting hole; 32. a limit groove; 33. an inner plate portion; 34. a cylindrical portion; 35. a side strip part; 36. a first through groove; 40. a sealing gasket; 41. an annular flange; 42. a first repair flange; 43. a second through slot; 500. a fastener; 600. a wall plate; 601. an opening; 602. and (5) hole sites.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The following describes the technical scheme provided by the embodiment of the utility model with reference to the accompanying drawings.

The utility model provides an electric automobile.

In some embodiments, an electric vehicle includes a drive motor, a speed governor, and a power battery pack. The driving motor is used for driving the wheels to run. The speed regulating device is used for regulating the rotating speed of the driving motor. The power battery pack is used for providing electric energy for the driving motor. Further, the electric vehicle further comprises a charging device, and the charging device is used for providing proper charging voltage or charging current for the power battery pack. More specifically, the electric vehicle further includes a frame and other related components.

The utility model also provides a power battery pack.

In some embodiments, as shown in connection with fig. 1 and 2, a power battery pack is used as a main energy storage device in an electric vehicle. Specifically, the power battery pack includes a case, a battery module, and a high voltage connection socket 100. The box is used for enclosing and covers the space that forms and hold battery module, makes battery module receive the protection. The electric components in the electric automobile input electric energy to the battery module through the high-voltage connection socket 100, and the battery module plays a role in energy storage. The battery module can also output electric power to electric components in the electric vehicle through the high-voltage connection socket 100. In one embodiment, the battery module outputs electric energy to the driving motor and the speed regulating device through the high-voltage connection socket 100, so that the driving motor drives the wheels to rotate, and the electric automobile is in a driving state.

In some embodiments, as shown in connection with fig. 1 and 2, the case includes a plurality of wall panels 600. In one embodiment, a plurality of wall panels 600 are connected to each other and enclose an interior space of the case. Further, the wall plate 600 of the case specifically includes a bottom plate, a top plate, and side plates. In one embodiment, a plurality of side panels are connected between the bottom panel and the top panel and form a columnar case.

As shown in connection with fig. 1 to 6, the present utility model also provides a high voltage connection socket 100.

In some embodiments, as shown in connection with fig. 1 and 3, the high voltage connection socket 100 includes: main housing 20, mount 30, and gasket 40. The main housing 20 includes a fitting portion 21 and an external portion 22 connected to the fitting portion 21. The attaching portion 21 is provided with a first mounting hole 23. The mounting member 30 is provided with a second mounting hole 31. The second mounting hole 31 corresponds to the first mounting hole 23, and the second mounting hole 31 and the first mounting hole 23 are used for mounting the fastener 500. The gasket 40 is abutted between the attaching portion 21 and the mounting member 30 together with the wall plate 600 of the case. Gasket 40 is disposed around opening 601 of wall plate 600.

Specifically, the main body 20 is abutted against the outside of the case wall plate 600 by the abutting portion 21, so that the external portion 22 is held on the outside of the wall plate 600. The external connection 22 is used for electrical interfacing with conductors, terminals or connectors outside the housing. The mounting member 30 is positioned on the inside of the wall plate 600 and is held relatively fixed to the fitting portion 21 by the fastener 500. The gasket 40 is abutted between the wall plate 600 and the attaching portion 21, or between the wall plate 600 and the mounting member 30, and the gasket 40 fills the gap on one side of the wall plate 600 by deformation, so that moisture is prevented from entering the inside of the case through the gap on one side of the wall plate 600. The gasket 40 surrounds an opening 601 in the wall plate 600, the opening 601 being adapted to interface with the main housing 20. Because the fastener 500 is fixed by the first mounting hole 23 on the attaching portion 21 and the second mounting hole 31 on the mounting member 30, and the second mounting hole 31 is formed on the mounting member 30 in advance, and the mounting member 30 is in abutting contact with the wall plate 600, before the fastener 500 is threaded into the second mounting hole 31, the mounting member 30 will not undergo compression deformation, the shape of the second mounting hole 31 can be kept stable, each fastener 500 can be connected between the mounting member 30 and the attaching portion 21, and the fit gap on both sides of the wall plate 600 is reduced, so that the periphery of the high-voltage connection socket 100 has good waterproof property.

In some embodiments, the fastener 500 is a bolt.

In one embodiment, as shown in connection with fig. 3, the gasket 40 is held against the mounting member 30 and the wall plate 600 of the case. In another embodiment, not shown, the gasket 40 is abutted between the abutting portion 21 and the wall plate 600 of the case. More specifically, for the portion of the fastener 500 between the first mounting hole 23 and the second mounting hole 31, the portion also passes through the gasket 40 and the wall plate 600 of the case.

In some embodiments, as shown in connection with fig. 3, the first mounting hole 23 is a through hole. Specifically, the first mounting hole 23 has an inner diameter smaller than the outer diameter of the end of the fastener 500.

In some embodiments, as shown in connection with fig. 5 and 6, the main housing 20 further includes an inner joint part 25 connected to the fitting part 21. The mounting member 30 is provided with a first through slot 36. The gasket 40 is provided with a second through groove 43. The inner joint 25 is inserted into the first through groove 36 and the second through groove 43.

Specifically, as shown in fig. 4 and 5, the inner joint part 25 is disposed on a side of the attaching part 21 facing away from the outer joint part 22. The external connection portion 22 and the internal connection portion 25 are used for supporting a conductor or an electrical terminal, respectively. In one embodiment, the inner joint 25 passes through the opening 601 of the wall plate 600, the second through groove 43 of the gasket 40, and the first through groove 36 of the mounting member 30 in this order, reaches the inner space of the case, and then electrically abuts against the conductor or the terminal in the case.

In one embodiment, the external portion 22, the fitting portion 21, and the internal portion 25 are integrally formed to improve the waterproof property. In one embodiment, the external portion 22 and the internal portion 25 are mainly columnar, and the bonding portion 21 is mainly plate-shaped.

In some embodiments, as shown in fig. 4 and 5, the outer edges of the attaching portion 21 and the mounting member 30 are rectangular, respectively. The first mounting holes 23 are distributed in the corner regions of the attaching portion 21. The second mounting holes 31 are distributed in the corner regions of the mounting member 30. Specifically, the outer edges of the attaching portion 21 and the mounting member 30 are respectively rectangular, so that it is convenient to measure the mounting levelness of the main housing 20 or the mounting member 30 by means of the level measuring instrument during the mounting process. Because the first mounting holes 23 are distributed in different corner regions of the attaching portion 21, and the second mounting holes 31 are distributed in different corner regions of the mounting member 30, the fastener 500 can fixedly connect the attaching portion 21 and the different corner regions of the mounting member 30, and connection reliability between the attaching portion 21 and the mounting member 30 is ensured. More specifically, the corner regions are regions where the rectangular outer edges are closer to right angles.

Specifically, the second mounting hole 31 is a threaded hole, and after the fastener 500 passes through the first mounting hole 23, the fastener 500 is threaded through the second mounting hole 31. Since the end portion of the fastener 500 abuts against the side of the attaching portion 21 facing away from the mounting member 30, the maximum distance between the mounting member 30 and the attaching portion 21 can be adjusted by adjusting the threading depth of the fastener 500 in the second mounting hole 31, and thus the attaching portion 21 can be engaged with the mounting member 30 to clamp the gasket 40 and the wall plate 600 of the case.

In some embodiments, as shown in connection with fig. 3, the end of the second mounting hole 31 facing away from the attaching portion 21 is closed. Specifically, the second mounting hole 31 is a blind hole, so that moisture outside the case can be prevented from flowing into the case through the second mounting hole 31.

In some embodiments, as shown in connection with fig. 6, a limiting groove 32 is formed on a side of the mounting member 30 facing the attaching portion 21. The limiting groove 32 is for partially receiving the gasket 40. The shape of the limit groove 32 corresponds to the gasket 40.

Specifically, after the gasket 40 is received in the limiting groove 32, the gasket 40 can be positionally accurately engaged with the mount 30 under the restriction of the groove wall of the limiting groove 32. Because the mounting member 30 and the main seat body 20 are in limit fit through the fastener 500, the position of the sealing gasket 40 can be accurately matched with the main seat body 20 after the sealing gasket 40 and the mounting member 30 are aligned.

Specifically, the shape of the limiting groove 32 corresponds to the sealing gasket 40, and it is understood that the edge shape of the limiting groove 32 is completely consistent with the edge of the sealing gasket 40, and it is also understood that a part of the edge of the limiting groove 32 is coincident with a part of the edge of the sealing gasket 40, so long as the limiting effect of the sealing gasket 40 by the groove wall of the limiting groove 32 is satisfied.

In some embodiments, a portion of the gasket 40 is received in the limiting groove 32 and another portion is located outside the limiting groove 32 along the thickness direction of the gasket 40. The portion of the gasket 40 outside the limit groove 32 is for abutting against the wall plate 600.

In some embodiments, as shown in connection with fig. 4 and 6, the mount 30 includes an inner plate portion 33 and a cylindrical portion 34 connected to the inner plate portion 33. The second mounting hole 31 is formed in the cylindrical portion 34. The thickness of the cylindrical portion 34 is greater than the thickness of the inner plate portion 33. Specifically, the inner plate portion 33 is for abutting in parallel against the gasket 40 or the wall plate 600. The thickness direction of the cylindrical portion 34 is perpendicular to the surface of the inner plate portion 33. Since the thickness of the cylindrical portion 34 is greater than or equal to the thickness of the inner plate portion 33, the depth of the second mounting hole 31 can be increased, which is advantageous in improving the connection stability between the fastener 500 and the mount 30. More specifically, the inner wall of the cylindrical portion 34 is formed with screw threads to define the second mounting hole 31.

In one embodiment, as shown in fig. 4 and 6, a side of the inner plate 33 facing the main body 20 is connected with a bead 35, and the bead 35 forms a side edge of the limit groove 32. More specifically, the bead portion 35 is connected to the edge of the inner panel portion 33.

In some embodiments, as shown in connection with fig. 4 and 6, the gasket 40 is formed with an annular flange 41. An annular flange 41 is provided around the cylindrical portion 34. The annular flange 41 is adapted to be held between the inner plate portion 33 and the wall plate 600. Specifically, the wall 600 of the housing is provided with holes 602 through which the fasteners 500 pass, and water flow from outside the housing may enter the housing through the holes 602 in the wall 600. The gasket 40 forms a through hole at the annular flange 41, into which the cylindrical portion 34 of the mount 30 is fitted. Because the fastener 500 is threaded through the cylindrical portion 34, with the annular flange 41 disposed about the cylindrical portion 34, the annular flange 41 will simultaneously surround the aperture 602 in the wall 600, restricting water flow from different angles of the aperture 602, thereby preventing water from flowing through the aperture 602 in the wall 600 and into the tank. More specifically, for the thickness difference between the cylindrical portion 34 and the inner plate portion 33, the thickness of the annular flange 41 is larger than the thickness difference, so that the annular flange 41 having elasticity can sufficiently adhere to the wall plate 600 by compression deformation, and the hole site 602 periphery of the wall plate 600 is made to have good water resistance.

In some embodiments, as shown in fig. 3, 4 and 6, a first repair flange 42 is provided on a side of the gasket 40 facing the fitting portion 21. The first repair flange 42 is distributed around the opening 601 of the wall panel 600 and is used to hold the wall panel 600.

Specifically, when the case is manufactured using sheet metal, the flatness of the wall plate 600 may be less than ideal, and when the wall plate 600 of the case is located between the gasket 40 and the bonding portion 21, a large gap is likely to be formed locally between the wall plate 600 and the gasket 40 or the bonding portion 21 due to the recess of the wall plate 600. Since the first repair flange 42 protrudes with respect to the other plane of the gasket 40, a large pressure can be generated to one side of the wall plate 600. Further, the first repairing flanges 42 are distributed along the ideal plane under the support of the mounting member 30, when the wall plate 600 is abutted against the first repairing flanges 42, the wall plate 600 can be repaired to be coincident with the ideal plane, so that a large gap is avoided between the wall plate 600 and the sealing gasket 40 or between the wall plate 600 and the attaching portion 21. Further, the first repair flange 42 is closed, thereby improving the sealing property between the first repair flange 42 and the wall plate 600 and enhancing the waterproof effect between the gasket 40 and the wall plate 600.

Further, the first repair flanges 42 are distributed around the opening 601 of the wall panel 600 such that the first repair flanges 42 can provide a flat-back effect on a larger area of the wall panel 600, allowing a larger portion of the wall panel 600 to conform to a desired plane. In one embodiment, as shown in connection with fig. 5, the fitting portion 21 is provided with a second repair flange 24 on a side facing the mounting member 30, the second repair flange 24 is disposed opposite to the first repair flange 42, and the second repair flanges 24 are distributed parallel to the desired plane. The first repair flange 42 and the second repair flange 24 abut against the wall plate 600 from both sides, respectively, so that the improvement effect on the flatness of the wall plate 600 can be enhanced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A high voltage connection socket, comprising:

2. The high voltage connection socket of claim 1, wherein an end of the second mounting hole facing away from the fitting portion is closed.

3. The high-voltage connection socket according to claim 1, wherein a limit groove is formed on a side of the mounting member facing the fitting portion; the limit groove is used for partially accommodating the sealing gasket; the shape of the limit groove corresponds to the sealing gasket.

4. The high voltage connection socket according to claim 1, wherein the mounting member includes an inner plate portion and a cylindrical portion connected to the inner plate portion; the second mounting hole is formed in the cylindrical portion; the thickness of the cylindrical portion is greater than the thickness of the inner plate portion.

5. The high voltage connection socket of claim 4, wherein the gasket is formed with an annular flange; the annular flange is disposed around the cylindrical portion; the annular flange is used for abutting between the inner plate part and the wall plate.

6. The high-voltage connection socket according to claim 1, wherein a side of the gasket facing the fitting portion is provided with a first repair flange; the first repair flange is distributed around the opening of the wall panel and is used for supporting the wall panel.

7. The high voltage connection socket of claim 1, wherein the main housing further comprises an inner joint part connected to the fitting part; the mounting piece is provided with a first through groove; the sealing gasket is provided with a second through groove; the inner connecting part is arranged in the first through groove and the second through groove in a penetrating mode.

8. The high voltage connection socket of claim 7, wherein the outer edges of the fitting portion and the mounting member are respectively rectangular; the first mounting holes are distributed in the corner areas of the attaching parts; the second mounting holes are distributed in the corner areas of the mounting piece.

9. A power cell pack comprising a high voltage connection socket as claimed in any one of claims 1 to 8.

10. An electric vehicle comprising the power cell pack of claim 9.