CN220420829U - Anti-rotation device for battery assembly - Google Patents

Abstract

The utility model discloses an anti-rotation device for a battery assembly, and relates to the technical field of battery anti-rotation. The anti-rotation device comprises a main body and a protective cover, wherein a mounting hole is formed in the main body, an anti-rotation structure is arranged around the mounting hole, an opening is formed in the protective cover, the protective cover is arranged on the main body, the mounting hole is suitable for being provided with a power connection row for a battery assembly, the anti-rotation structure is used for limiting the power connection row so as to prevent the power connection row from rotating, and the protective cover is used for protecting the mounting hole and the power connection row and is positioned in the opening. The anti-rotation device can effectively reduce deflection and rotation generated when the copper bar or the aluminum bar is installed in the production of the battery assembly, and ensures the integrity of electric connection.

Description

Anti-rotation device for battery assembly

Technical Field

The utility model relates to the technical field of battery anti-rotation, in particular to an anti-rotation device for a battery assembly.

Background

When the battery pack outputs current to the outside, the battery pack needs to be connected with the whole car through a high-voltage socket for output. During output, a single wire harness cannot bear high voltage, so that a copper bar or an aluminum bar is required to be connected with the whole vehicle during output. When fixing copper or aluminum bars, bolts are often used as a fixing means, and the huge moment generated by an electric gun used when tightening the bolts tends to cause undesirable deflection of the copper or aluminum bars.

The deflection is about the center of the mounting hole of the copper or aluminum bar and the entire body rotates clockwise, which can cause failure of the electrical connection within the entire package of cells, but there is not a sufficiently effective means to avoid such deflection during current manufacturing processes.

Disclosure of Invention

The utility model aims to solve at least one of the technical problems in the related art to a certain extent, and can improve the connection efficiency and quality of the whole battery pack on the premise of not influencing the quality of the battery.

To this end, an embodiment of the present utility model proposes an anti-rotation device for a battery assembly.

An anti-rotation device according to an embodiment of the present utility model includes: the anti-rotation device comprises a main body, wherein a mounting hole is formed in the main body, and anti-rotation structures are arranged around the mounting hole; a protective cover, wherein an opening is arranged on the protective cover, and the protective cover is arranged on the main body; the mounting hole is suitable for being provided with a power connection row for the battery assembly, the anti-rotation structure is used for limiting the power connection row so as to prevent the power connection row from rotating, the protective cover is used for protecting the mounting hole and the power connection row, and the power connection row is positioned in the opening.

According to the anti-rotation device provided by the embodiment of the utility model, the anti-rotation structure is added, and the anti-rotation structure has the function of adding entities on two sides of the copper bar or the aluminum bar to limit the copper bar or the aluminum bar, so that the copper bar or the aluminum bar is prevented from rotating.

In some embodiments, the main body is provided with two mounting holes, one is arranged at the upper part of the main body and is suitable for mounting a power receiving row for the positive electrode of the battery assembly, and the other is arranged at the lower part of the main body and is suitable for mounting a power receiving row for the negative electrode of the battery assembly.

In some embodiments, the anti-rotation structure comprises an anti-rotation plate and two anti-rotation posts, the anti-rotation plate is arranged on one side of the mounting hole, the two anti-rotation posts are arranged on one side of the mounting hole, and in the length direction of the anti-rotation plate, the two anti-rotation posts are respectively aligned with two ends of the anti-rotation plate.

In some embodiments, the main body is provided with a guide structure, and the protecting cover is provided with a guide groove, and the guide groove is suitable for being sleeved on the guide structure.

In some embodiments, the guide structure comprises a guide post and a guide bar connected with each other, the guide groove comprises a round groove and a square groove which are communicated with each other, the round groove is suitable for being sleeved on the guide post after passing through the guide bar, and the square groove is suitable for being sleeved on the guide bar.

In some embodiments, the anti-rotation device further comprises a disassembly assembly, the disassembly assembly comprises a baffle and a plurality of connecting pieces, a standby port is further formed in the protection cover, a plurality of connecting pieces are arranged in the standby port, and the baffle is arranged on a plurality of connecting pieces.

In some embodiments, the main body is further provided with a connecting groove and a connecting hole, the connecting groove is suitable for being installed on the output end of the battery assembly, the connecting hole is communicated with the connecting groove and the mounting hole, and the positive electrode or the negative electrode of the output end of the battery assembly is suitable for being located on the mounting hole after passing through the connecting hole.

In some embodiments, the cross section of the connecting groove is square, oval or 8-shaped.

In some embodiments, the anti-rotation device further comprises a spacer disposed within the connection slot.

In some embodiments, the anti-rotation device further comprises an interlock wire, wherein the main body is provided with an interlock groove and an interlock interface, and the interlock wire is arranged in the interlock groove and the interlock interface to fix the main body and the battery assembly.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a perspective view of an anti-rotation device according to an embodiment of the present utility model.

Fig. 2 is a side view of the anti-rotation device of fig. 1.

Fig. 3 is another perspective view of an anti-rotation device according to an embodiment of the present utility model.

Fig. 4 is a perspective view of a body in an anti-rotation device according to an embodiment of the present utility model.

Fig. 5 is a perspective view of a protective cover in an anti-rotation device according to an embodiment of the present utility model.

Fig. 6 is another perspective view of the protective cover in the anti-rotation device according to the embodiment of the present utility model.

Fig. 7 is a perspective view of a spacer in an anti-rotation device according to an embodiment of the present utility model.

Fig. 8 is a perspective view of a battery assembly according to an embodiment of the present utility model.

Fig. 9 is another perspective view of a battery assembly according to an embodiment of the present utility model.

Fig. 10 is yet another perspective view of a battery assembly according to an embodiment of the present utility model.

Fig. 11 is a side view of the battery assembly of fig. 10.

Reference numerals:

the anti-rotation device 100, the main body 10, the mounting hole 11, the anti-rotation structure 12, the anti-rotation plate 121, the anti-rotation column 122, the guide structure 13, the guide column 131, the guide bar 132, the connecting groove 14, the connecting hole 15, the interlocking groove 16, the interlocking interface 17, the protective cover 20, the opening 21, the guide groove 22, the circular groove 221, the square groove 222, the standby port 23, the disassembly assembly 30, the baffle 31, the connecting piece 32, the gasket 40 and the interlocking wire 50.

Battery assembly 200, power bank 201.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 11, the anti-rotation device 100 according to the embodiment of the present utility model includes a main body 10 and a protective cover 20.

The main body 10 is provided with a mounting hole 11, and anti-rotation structures 12 are arranged around the mounting hole 11. The protective cover 20 is provided with an opening 21, and the protective cover 20 is provided on the main body 10.

The mounting hole 11 is suitable for mounting the power receiving row 201 for the battery assembly 200, the anti-rotation structure 12 is used for limiting the power receiving row 201 so as to prevent the power receiving row 201 from rotating, the protective cover 20 is used for protecting the mounting hole 11 and the power receiving row 201, and the power receiving row 201 is located in the opening 21.

In particular, as shown in fig. 1-11, it has been pointed out in the background art that the deflection of the copper bar is essentially a clockwise rotation about the center of the bolt mounting hole due to excessive mounting torque of the electric gun at the time of mounting.

In the anti-rotation device 100 of the present embodiment, the main body 10 is designed by arranging the anti-rotation structure 12 in a direction perpendicular to the installation plane of the bolt, and the anti-rotation structure 12 blocks a possible rotation direction of the copper bar, so that the copper bar is not deviated.

According to the anti-rotation device 100 of the embodiment of the utility model, by adding the anti-rotation structure 12, the anti-rotation structure 12 has the function of adding entities on two sides of the copper bar or the aluminum bar to limit the copper bar or the aluminum bar, thereby avoiding the rotation of the copper bar or the aluminum bar.

In some embodiments, as shown in fig. 1-11, two mounting holes 11 are provided on the body 10. A mounting hole 11 is provided at the upper portion of the main body 10, and is adapted to mount a power receiving bar 201 for the positive electrode of the battery assembly 200. Another mounting hole 11 is provided at the lower portion of the main body 10, and is adapted to mount a power receiving bank 201 for the negative electrode of the battery assembly 200.

It can be appreciated that the positive and negative poles of the high voltage connector socket of the battery assembly 200 are disposed up and down, so that the protection cover 20 is limited to the installation sequence of the copper bars/aluminum bars, and the protection cover 20 cannot be designed as an integrated protection cover 20 to simultaneously protect the upper and lower poles. Therefore, it is necessary to design two protection covers 20 to be installed separately, so that the two protection covers 20 are designed with the same structure in order to avoid confusion in the specific installation process, and the universality of the use of parts is improved.

In some embodiments, as shown in fig. 1-4, the anti-rotation structure 12 includes an anti-rotation plate 121 and two anti-rotation posts 122. The anti-rotation plate 121 is disposed at one side of the mounting hole 11, and two anti-rotation posts 122 are disposed at one side of the mounting hole 11, and in the longitudinal direction of the anti-rotation plate 121, the two anti-rotation posts 122 are aligned with both ends of the anti-rotation plate 121, respectively.

It can be understood that in the anti-rotation device 100 of the present embodiment, 6 anti-rotation structures 12 are provided on the main body 10. A total of 6 limit entities lock all rotational directions of the copper bar leaving only a small amount of play for assembly purposes, enough to ensure that the copper bar will not be unacceptably shifted after assembly is complete.

Specifically, as shown in fig. 1 to 4, due to the limitation of the positive and negative electrode structures of the high voltage connector socket, the arrangement of 6 limit entities is to arrange one large-sized anti-rotation plate 121 on each of the upper and lower layers, and to arrange 2 small anti-rotation posts 122.

First, to fit the opening in the protective cover 20 that is possible, reserved for electrical components that are accessed from the rest, the body 10 must also leave sufficient clearance for the electrical components to pass through in the corresponding position, to reach the designated installation position. When the copper bar is mounted from the front of the protective cover 20, the copper bar is limited and prevented from rotating by 2 small anti-rotating posts 122. When the copper bar is mounted from the side of the protective cover 20, the copper bar is limited and prevented from rotating by the rotation preventing plate 121 and the rotation preventing column 122 in the corresponding direction.

Second, because the protective cap 20 serves to protect all parts including the copper bars and bolts, it is necessary that the entire anti-rotation device 100 be designed to have a certain height to include all parts. The high design of the anti-rotation post 122 disposed in the middle provides a supporting function for the entire protection cover 20 and also allows the connection of the main body 10 and the protection cover 20 to be more compact without slipping.

In some embodiments, as shown in fig. 1-6, the main body 10 is provided with a guide structure 13, the protective cover 20 is provided with a guide groove 22, and the guide groove 22 is suitable for sleeving the guide structure 13.

In some embodiments, as shown in fig. 1-6, the guide structure 13 includes a guide post 131 and a guide bar 132 connected to each other, the guide groove 22 includes a circular groove 221 and a square groove 222 connected to each other, the circular groove 221 is adapted to pass through the guide bar 132 and then be sleeved on the guide post 131, and the square groove 222 is adapted to be sleeved on the guide bar 132.

Specifically, as shown in fig. 1 to 6, the protective cover 20 is provided with 2 guide grooves 22 for limiting and fastening on the side wall, and the guide grooves 22 are used for being matched with the main body 10, wherein 1 guide groove 22 is respectively arranged on 2 sides.

The guide groove 22 has two functions, namely a limit and is matched with the main body 10. In this embodiment, it can be found that the guide groove 22 is formed by two parts, a circular groove 221 for clamping and a rectangular square groove 222 for holding, and the main body 10 is designed with 2 guide structures 13 at corresponding positions, so that the positions of the protective cover 20 can be prevented from moving by two-by-two matching, and the installation is prevented from being reversed during the installation. Meanwhile, the guide groove 22 can guide the protective cover 20 to be installed on the main body 10, and the rectangular guide strip 132 can effectively prevent the protective cover 20 from rotating, so that the protective cover can prevent rotation from the upper and lower directions.

Secondly, because the battery assembly 200 may be mounted on the vehicle, the working environment is variable, and the mounting position of the battery assembly needs to be fastened so as not to loosen or even fall off.

In some embodiments, as shown in fig. 5-6, the anti-rotation device 100 further includes a disassembly assembly 30, the disassembly assembly 30 including a baffle 31 and a plurality of connection tabs 32. The protective cover 20 is also provided with a standby port 23, a plurality of connecting pieces 32 are arranged in the standby port 23, and the baffle 31 is arranged on the plurality of connecting pieces 32.

It will be appreciated that the anti-rotation device 100 of the present utility model is designed to be used in a BM11 battery pack, and the electrical connection opening in the anti-rotation device 100 is also adapted to be used only in a BM11 battery pack, so that the suitability and versatility of the anti-rotation device 100 are improved, and the spare port 23 may be designed so that the component can be used in other products, and may be used in other products as necessary.

Further, considering that the electrical connection forms adopted by the different battery assemblies 200 are not necessarily the same, the spare ports 23 are reserved on all three sides of the protection cover 20, 1 spare port 23 is respectively arranged on 2 sides of the protection cover 20, and 1 spare port 23 is arranged on the front side of the protection cover 20.

Preferably, the relief port 23 has a plurality of tabs 32 at the relief port 23 when not in use, the tabs 32 maintaining the integrity of the protective cap 20. When the spare port 23 is required to be used, the spare port 23 can be opened by applying force along the gap of the spare port 23 and breaking the plurality of connecting pieces 32.

In some embodiments, as shown in fig. 1 to 11, the body 10 is further provided with a coupling groove 14 and a coupling hole 15. The connection groove 14 is adapted to be mounted on the output end of the battery assembly 200, the connection hole 15 communicates the connection groove 14 with the mounting hole 11, and the positive electrode or the negative electrode of the output end of the battery assembly 200 is adapted to pass through the connection hole 15 and then be positioned on the mounting hole 11.

In some embodiments, as shown in fig. 1-11, the cross-section of the attachment slot 14 is square, oval, or 8-shaped.

It will be appreciated that the body 10 and the high voltage socket of the battery assembly 200 are assembled together, and that the body 10 cannot rotate by itself in the first place if it is to act as an anti-rotation. Thus, it is necessary to design the connection groove 14 of the main body 10 to do this, and the connection groove 14 of the main body 10 may be designed as a large slot in consideration of the structure of the high voltage connector itself.

Further, the cross section of the connecting groove 14 is square, oval or 8-shaped, which is advantageous in improving the stability of the connection of the main body 10.

In some embodiments, as shown in fig. 7, the anti-rotation device 100 further includes a spacer 40, the spacer 40 being disposed within the attachment slot 14.

It will be appreciated that the spacer 40 may be designed as a foam spacer, the primary function of the spacer 40 being to buffer and thickness adjustment. The structure of the spacer 40 is not required to be complicated, and the cross-sectional shape of the spacer 40 corresponds to the bottom surface of the main body 10, so that a sufficient space is provided for the coupling groove 14 of the main body 10.

In some embodiments, as shown in fig. 8-11, the anti-rotation device 100 further includes an interlock wire 50 provided on the body 10 with the interlock slot 16 and the interlock interface 17, and the interlock wire 50 is provided in the interlock slot 16 and the interlock interface 17 to fix the body 10 and the battery assembly 200.

It will be appreciated that as can be seen from the design of the high voltage connector receptacle of the battery assembly 200, the design of the anti-rotation device 100 requires that the interlocking wire 50 be routed, i.e., that the body 10 requires that the interlocking slot 16 and the interlocking interface 17 be left to connect the interlocking wire 50.

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; may be mechanically connected, may be electrically connected or may be in communication with each other; 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 the first and second features in direct contact, or the first and second features 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 level higher 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 below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (9)

1. An anti-rotation device for a battery assembly, comprising:

the anti-rotation device comprises a main body, wherein a mounting hole is formed in the main body, and anti-rotation structures are arranged around the mounting hole;

a protective cover, wherein an opening is arranged on the protective cover, and the protective cover is arranged on the main body;

the mounting hole is suitable for mounting a power connection row for the battery assembly, the anti-rotation structure is used for limiting the power connection row so as to prevent the power connection row from rotating, the protective cover is used for protecting the mounting hole and the power connection row, and the power connection row is positioned in the opening;

the anti-rotation structure comprises an anti-rotation plate and two anti-rotation columns, wherein the anti-rotation plate is arranged on one side of the mounting hole, the two anti-rotation columns are arranged on one side of the mounting hole, and the two anti-rotation columns are aligned with the two ends of the anti-rotation plate respectively in the length direction of the anti-rotation plate.

2. The anti-rotation device for a battery assembly according to claim 1, wherein two mounting holes are provided on the main body, one of the mounting holes is provided at an upper portion of the main body and adapted to mount a power receiving bank for a positive electrode of the battery assembly, and the other mounting hole is provided at a lower portion of the main body and adapted to mount a power receiving bank for a negative electrode of the battery assembly.

3. The anti-rotation device for a battery assembly according to claim 1, wherein a guide structure is provided on the main body, a guide groove is provided on the protective cover, and the guide groove is adapted to be sleeved on the guide structure.

4. The anti-rotation device for a battery assembly according to claim 3, wherein the guide structure comprises a guide post and a guide bar connected to each other, the guide groove comprises a round groove and a square groove communicated with each other, the round groove is suitable for being sleeved on the guide post after passing through the guide bar, and the square groove is suitable for being sleeved on the guide bar.

5. The anti-rotation device for a battery assembly according to claim 1, further comprising a disassembly assembly, wherein the disassembly assembly comprises a baffle and a plurality of connecting pieces, a spare port is further provided in the protective cover, a plurality of connecting pieces are provided in the spare port, and the baffle is provided on a plurality of connecting pieces.

6. The anti-rotation device for a battery assembly according to claim 1, wherein the main body is further provided with a connecting groove and a connecting hole, the connecting groove is suitable for being mounted on an output end of the battery assembly, the connecting hole is communicated with the connecting groove and the mounting hole, and an anode or a cathode of the output end of the battery assembly is suitable for being positioned on the mounting hole after passing through the connecting hole.

7. The anti-rotation device for a battery assembly according to claim 6, wherein the cross section of the connection groove is square, oval or 8-shaped.

8. The anti-rotation device for a battery assembly of claim 6, further comprising a spacer disposed within the connection slot.

9. The anti-rotation device for a battery assembly according to claim 6, further comprising an interlock wire provided with an interlock groove and an interlock interface on the main body, the interlock wire being provided in the interlock groove and the interlock interface to fix the main body and the battery assembly.