CN219066881U

CN219066881U - Low-voltage terminal shielding layer installation auxiliary fixture and low-voltage terminal

Info

Publication number: CN219066881U
Application number: CN202320025222.3U
Authority: CN
Inventors: 晋兴兵; 薛昆; 张明; 周鹏
Original assignee: Sinoev Hefei Technologies Co Ltd
Current assignee: Sinoev Hefei Technologies Co Ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-05-23
Anticipated expiration: 2033-01-05

Abstract

The embodiment of the utility model provides an auxiliary fixture for mounting a low-voltage terminal shielding layer and a low-voltage terminal, and relates to the technical field of batteries. The embodiment of the utility model solves the problem that the shielding layer in the low-voltage terminal is easy to squeeze and deform in the process of assembling the battery can body.

Description

Low-voltage terminal shielding layer installation auxiliary fixture and low-voltage terminal

Technical Field

The application relates to the technical field of batteries, in particular to an auxiliary fixture for installing a low-voltage terminal shielding layer and a low-voltage terminal.

Background

When the low-voltage terminal is installed on the battery pack shell, the shielding layer in the low-voltage terminal and the battery pack shell need to be in close contact to ensure that the contact resistance meets the requirement, a small installation opening is required to be arranged at the battery pack shell to ensure that the shielding layer in the low-voltage terminal is well matched with the battery pack shell, and the shielding layer in the low-voltage terminal is frequently extruded and deformed in the assembly process of the low-voltage terminal due to the small installation opening, so that the low-voltage terminal needs to be replaced frequently.

Disclosure of Invention

The utility model aims to provide an auxiliary tooling for installing a low-voltage terminal shielding layer and a low-voltage terminal, which are used for solving the problem that the shielding layer in the low-voltage terminal is easy to squeeze and deform in the process of assembling a battery shell.

Embodiments of the utility model may be implemented as follows:

in a first aspect, an embodiment of the present utility model provides an auxiliary fixture for installing a low voltage terminal shielding layer, including an extrusion block, an end cover, and a fastener, where the extrusion block is fixedly connected with the end cover, and the fastener is rotatably disposed on the end cover through a pin shaft;

the extrusion block is provided with an opening at one side far away from the end cover, a plurality of protruding blocks are arranged at the end face of the opening along the circumferential spacing, each protruding block is arranged in a two-to-two opposite mode, and each protruding block is perpendicular to the end face of the opening at the corresponding position.

In an alternative embodiment, a plurality of mounting grooves are formed in the inner wall of the extrusion block at intervals along the circumferential direction, and each protruding block is embedded in the corresponding mounting groove and extends out of the opening.

In an alternative embodiment, each of the bumps extends a uniform length out of the opening.

In an alternative embodiment, the top of the end cover is provided with a mounting part, the mounting part comprises a first convex part and a second convex part, and the first convex part and the second convex part are oppositely arranged;

the pin shaft holes are formed in the first protruding portion and the second protruding portion, and the pin shaft holes of the first protruding portion and the pin shaft holes of the second protruding portion are identical in position.

In an alternative embodiment, the fastener comprises a first connecting piece and a second connecting piece, and the first connecting piece and the second connecting piece are hollow structures and are integrally formed;

the side wall of the first connecting piece is provided with mounting holes, and the fastener is rotatably connected with the mounting part through pin shafts sequentially penetrating through the pin shaft holes of the first protruding part, the mounting holes of the first connecting piece and the pin shaft holes of the second protruding part.

In an alternative embodiment, the width of the first connector is smaller than the width of the second connector.

In an alternative embodiment, the pin has an outer diameter of 2mm.

In an alternative embodiment, the end cap is provided with a plurality of through holes at a side far away from the connection with the extrusion block.

In a second aspect, an embodiment of the present utility model provides a low voltage terminal, including a housing and a shielding layer, where the shielding layer is disposed in the housing oppositely;

the housing is provided with a plugging slot, and the low-voltage terminal shielding layer installation auxiliary tool according to any one of the foregoing embodiments is plugged into the plugging slot, so as to squeeze the shielding layer through each of the bumps of the low-voltage terminal shielding layer installation auxiliary tool.

In an alternative embodiment, a chuck is arranged outside the shell, and the low-voltage terminal shielding layer installation auxiliary tool is inserted into the insertion groove and then fixedly connected with the shell through the fastener clamped at the chuck.

The beneficial effects of the embodiment of the utility model include, for example:

according to the low-voltage terminal shielding layer installation auxiliary tool and the low-voltage terminal, the protruding blocks are designed at the openings of the extrusion blocks, when the low-voltage terminal is required to be assembled at the corresponding positions of the battery pack shell, the tool is installed into the low-voltage terminal shell from the front end of the low-voltage terminal, at the moment, the protruding blocks extrude the shielding layers of the low-voltage terminal to enable the shielding layers to shrink towards the middle, then the fastener is rotated to fasten the low-voltage terminal shell through the fastener, so that the tool is fixed with the low-voltage terminal, and the shielding layers of the low-voltage terminal are kept in a shrinking state.

Based on this, when loading into the corresponding position of battery package casing with this frock simultaneously again, because the buckling of extrusion cooperation fastener of lug makes the shielding layer keep in the shrink state, reduced the interference between this shielding layer and the battery package casing, after the low voltage terminal is accomplished in the installation, rotates the fastener and takes off this frock, and this low voltage terminal shielding layer installation auxiliary fixtures has solved the problem that the shielding layer of low voltage terminal in battery package casing assembly in-process is easy crowded deformation. Meanwhile, the contact internal resistance between the shielding layer of the low-voltage terminal and the battery pack shell in the installation process is reduced, and electromagnetic interference between the whole vehicle and the battery pack is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of an auxiliary fixture for installing a low-voltage terminal shielding layer according to an embodiment of the present utility model;

fig. 2 is a second schematic diagram of an overall structure of an auxiliary fixture for installing a low-voltage terminal shielding layer according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of an end cover in an auxiliary fixture for installing a low-voltage terminal shielding layer according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a fastener in an auxiliary fixture for installing a low-voltage terminal shielding layer according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a low-voltage terminal shielding layer installation auxiliary tool provided by an embodiment of the utility model, which is installed in a housing of a low-voltage terminal;

fig. 6 is a schematic diagram of an overall structure of a low-voltage terminal according to an embodiment of the present utility model.

Icon: 100-mounting an auxiliary tool for a low-voltage terminal shielding layer; 110-extruding a block; 120-end caps; 121-an installation part; 1211-a first protrusion; 1212-a second protrusion; 1213-pin bore; 122-through holes; 130-a fastener; 131-first connector; 132-a second connector; 133-mounting holes; 140-pin shafts; 150-bump; 200-low voltage terminals; 201-a housing; 202-a shielding layer; 203-inserting grooves; 204-chuck.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

It should be noted that: 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 utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," 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 utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, 2, 5 and 6, an embodiment of the utility model provides an auxiliary fixture 100 for installing a low-voltage terminal shielding layer. The low voltage terminal shielding layer installation auxiliary tool 100 can be used for assisting the low voltage terminal 200 to be installed at a corresponding position on a battery pack housing (not shown in the figure), and the battery pack housing can be used for a battery module (not shown in the figure) to be assembled to form a battery pack (not shown in the figure), and the battery pack is usually installed in an electric vehicle such as a new energy automobile for supplying power to the whole vehicle.

In the embodiment of the utility model, an auxiliary fixture 100 for installing a low-voltage terminal shielding layer is provided, which comprises an extrusion block 110, an end cover 120 and a fastener 130, wherein the extrusion block 110 is fixedly connected with the end cover 120, and the fastener 130 is rotatably arranged on the end cover 120 through a pin shaft 140.

An opening (not shown) is disposed on a side of the extrusion block 110 away from the end cover 120, a plurality of protrusions 150 are disposed at end surfaces of the opening along a circumferential distance, each protrusion 150 is disposed in a pair of 5 opposite directions, and each protrusion 150 is perpendicular to the end surfaces of the opening at a corresponding position.

Wherein, the extrusion block 110 is used for installing the protruding block 150, the end cover 120 is used for installing the fastener 130 and assembling the extrusion block 110 into a tool whole, and the protruding block 150 is used for extruding the shielding layer 202 in the low-voltage terminal 200 when the tool is installed in the shell 201 of the low-voltage terminal 200, so that

The shielding layer 202 is contracted, the fastener 130 is provided for fixing the whole fixture with the low voltage terminal 200, and 0 is held by the amount of the extrusion deformation of the bump 150 to the shielding layer 202 by the fastening installation of the fastener 130.

It should be noted that, the thickness of each bump 150 needs to be determined according to the size of the shielding layer 202 of the low voltage terminal 200 to be compressed, and if the thickness of each bump 150 is too small, the compression will be too small when each bump 150 presses the shielding layer 202 of the low voltage terminal 200, and the low voltage terminal 200 will be connected with

More interference is generated between the battery pack cases, making it difficult to mount the low voltage terminal 200 at the battery pack case, 5, and the deformation of the shielding layer 202 of the low voltage terminal 200 cannot be improved.

Further, if the thickness of each bump 150 is too large, the amount of compression will be too large when each bump 150 presses the shield layer 202 of the low voltage terminal 200, and after the bumps 150 press the shield layer 202, the shield layer 202 will be permanently deformed, and at this time, the contact resistance between the low voltage terminal 200 and the battery pack case will become large.

Based on this, it is necessary to appropriately increase the size between each protrusion and the pressing reference surface of the pressing block 110 (i.e., the end surface of the opening of the pressing block 110) according to the size to be compressed of the shielding layer 202 in the low voltage terminal 200, so that the amount of compression is reasonable when each bump 150 presses the shielding layer 202 of the low voltage terminal 200.

According to the low-voltage terminal shielding layer installation auxiliary tool 100 provided by the embodiment of the utility model, through the projection 150 designed at the opening of the extrusion block 110, when the low-voltage terminal 200 is required to be assembled in the battery pack shell

When the tool is to be positioned, the tool is put into the low-voltage terminal 200 shell 201 from the front end of the low-voltage terminal 200, 5 the lug 150 presses the shielding layers 202 of the low-voltage terminal 200 to shrink the shielding layers 202 towards the middle,

the fastener 130 is rotated again to fasten the housing 201 of the low voltage terminal 200 by the fastener 130, thereby fixing the fixture to the low voltage terminal 200 and keeping the shielding layer 202 of the low voltage terminal 200 in a contracted state.

Based on this, when the low voltage terminal 200 and the fixture are installed at the corresponding positions of the battery pack case at the same time, the shielding layer 202 is kept in a contracted state due to the buckling of the extrusion fit fastener 130 of the protruding block 150, interference between the shielding layer 202 and the battery pack case is reduced, after the low voltage terminal 200 is installed, the fixture is removed by rotating the fastener 130, and the problem that the shielding layer 202 in the low voltage terminal 200 is easy to squeeze and deform in the process of assembling the battery pack case is solved by the low voltage terminal shielding layer installation auxiliary fixture. Meanwhile, the design reduces the contact internal resistance between the shielding layer 202 of the low-voltage terminal 200 and the battery pack shell in the installation process, and reduces the electromagnetic interference between the whole vehicle and the battery pack.

In an alternative embodiment, a plurality of mounting grooves are circumferentially spaced on the inner wall of the extrusion block 110, and each of the protruding blocks 150 is embedded in the corresponding mounting groove and extends out of the opening.

In embodiments of the present utility model, the mounting slots are provided to facilitate the mounting and dismounting of the bumps 150 to facilitate the dismounting and replacement when a different bump 150 needs to be replaced to match the size of the shield 202 of the low voltage terminal 200 that needs to be compressed.

In an alternative embodiment, each of the bumps 150 extends a uniform length out of the opening.

In the embodiment of the present utility model, the extending length of each bump 150 is set to be consistent with the compression amount of the shielding layer 202 at the corresponding position pressed by each bump 150.

Referring to fig. 1 to 3 in combination, in an alternative embodiment, a top portion of the end cap 120 is provided with a mounting portion 121, and the mounting portion 121 includes a first protrusion 1211 and a second protrusion 1212, and the first protrusion 1211 and the second protrusion 1212 are disposed opposite to each other.

The first protrusion 1211 and the second protrusion 1212 are provided with pin holes 1213, and the pin holes 1213 of the first protrusion 1211 and the pin holes 1213 of the second protrusion 1212 are positioned at the same positions.

In the embodiment of the present utility model, pin holes 1213 provided on the first and

second protrusions

1211 and 1212 are used to mount the pin 140.

Referring to fig. 1, 2 and 4, in an alternative embodiment, the fastener 130 includes a first connecting member 131 and a second connecting member 132, and the first connecting member 131 and the second connecting member 132 are hollow structures and are integrally formed.

The side walls of the first connecting piece 131 are provided with mounting holes 133, and the fastener 130 is rotatably connected to the mounting portion 121 through pins 140 sequentially passing through the pin holes 1213 of the first protruding portion 1211, the mounting holes 133 of the first connecting piece 131, and the pin holes 1213 of the second protruding portion 1212.

In the embodiment of the present utility model, the mounting holes 133 formed in the first connector 131 are used for mounting the pins 140, so that the fastener 130 may be rotatably disposed on the end cover 120 through the pins 140 sequentially passing through the pin holes 1213 of the first protrusion 1211, the mounting holes 133 of the first connector 131, and the pin holes 1213 of the second protrusion 1212.

Referring to fig. 4, in an alternative embodiment, the width of the first connecting member 131 is smaller than the width of the second connecting member 132.

In the embodiment of the present utility model, the width of the first connector 131 is set smaller than the width of the second connector 132 in order to make the overall size of the first connector 131 match the width between the first protrusion 1211 and the second protrusion 1212 of the end cap 120.

In an alternative embodiment, the pin 140 has an outer diameter of 2mm.

Referring to fig. 2 and 4 in combination, in an alternative embodiment, a plurality of through holes 122 are formed in a side of the end cap 120 facing away from the connection with the pressing block 110.

In the embodiment of the present utility model, a plurality of through holes 122 are provided on the outer wall of the end cap 120 for the purpose of being mounted in the low voltage terminal 200 using the device, the mounting condition inside the low voltage terminal 200 can be observed through the through holes 122.

Referring to fig. 1, 2, 5 and 6, the embodiment of the present utility model further provides a low voltage terminal 200, where the low voltage terminal 200 is typically mounted on a corresponding position on a battery pack housing (not shown) that may be used for a battery module (not shown) to assemble and form a battery pack (not shown), and the battery pack is typically mounted in an electric vehicle to supply power to the whole vehicle.

In an embodiment of the present utility model, the low voltage terminal 200 includes a housing 201 and a shielding layer 202, and the shielding layer 202 is disposed in the housing 201.

The housing 201 is provided with a plugging slot 203, and the low voltage terminal shielding layer installation auxiliary tool according to any one of the foregoing embodiments is plugged into the plugging slot 203, so as to squeeze the shielding layer 202 through each of the bumps 150 of the low voltage terminal shielding layer installation auxiliary tool.

The auxiliary fixture 100 for mounting the low-voltage terminal shielding layer comprises an extrusion block 110, an end cover 120 and a fastener 130, wherein the extrusion block 110 is fixedly connected with the end cover 120, and the fastener 130 is rotatably arranged on the end cover 120 through a pin shaft 140.

An opening is provided on a side of the extrusion block 110 away from the end cover 120, a plurality of protrusions 150 are provided at end surfaces of the opening along a circumferential interval, each protrusion 150 is disposed in a pair of two opposite directions, and each protrusion 150 is perpendicular to the end surfaces of the opening at a corresponding position.

In an alternative embodiment, a chuck 204 is disposed outside the housing 201, and the low voltage terminal shielding layer installation auxiliary tool 100 is fixedly connected with the housing 201 through the fastener 130 clamped at the chuck 204 after being inserted into the insertion groove 203.

The following is an example of the process of installing the low voltage terminal shielding layer installation auxiliary tool at the low voltage terminal 200 and installing the low voltage terminal 200 at the battery pack case based on the above-described arrangement, as follows:

first, when it is necessary to assemble the low voltage terminal 200 at the mounting hole of the corresponding position of the battery pack case, the low voltage terminal shielding layer installation auxiliary tool is installed into the case 201 of the low voltage terminal 200 from the front end of the low voltage terminal 200, and as shown in fig. 5, each of the protrusions 150 on the pressing block 110 presses the shielding layer 202 of the low voltage terminal 200 of the corresponding position to be contracted toward the middle, respectively.

Next, the fastener 130 is fastened to the housing 201 of the low voltage terminal 200 by a chuck, thereby maintaining the shielding layer 202 of the low voltage terminal 200 in a contracted state.

Further, the low voltage terminal 200 and the auxiliary fixture for mounting the low voltage terminal shielding layer are simultaneously installed in the installation holes (not shown in the figure) of the battery pack case, and are fixed by installing screws (not shown in the figure) at the fixing holes (not shown in the figure) at the four corners of the low voltage terminal 200, and after the screws are installed at the fixing holes at the four corners of the low voltage terminal 200, the fastener 130 is rotated upwards, so that the auxiliary fixture for mounting the low voltage terminal shielding layer is loosened to be in contact with the low voltage terminal 200.

The other low voltage terminals 200 are mounted at the corresponding mounting holes of the battery pack case in the above manner, i.e., the mounting of each low voltage terminal 200 is completed.

The above-mentioned low voltage terminal shielding layer installation auxiliary fixtures's overall design has solved the problem that the shielding layer 202 in low voltage terminal 200 is easy to squeeze out of shape in the in-process of battery package casing assembly. Meanwhile, the design reduces the contact internal resistance between the shielding layer 202 of the low-voltage terminal 200 and the battery pack shell in the installation process, and reduces the electromagnetic interference between the whole vehicle and the battery pack.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The auxiliary tooling for mounting the low-voltage terminal shielding layer is characterized by comprising an extrusion block (110), an end cover (120) and a fastener (130), wherein the extrusion block (110) is fixedly connected with the end cover (120), and the fastener (130) is rotatably arranged on the end cover (120) through a pin shaft (140);

an opening is formed in one side, far away from the end cover (120), of the extrusion block (110), a plurality of protruding blocks (150) are arranged at the end face of the opening along the circumferential spacing, the protruding blocks (150) are arranged in a pair of opposite directions, and the protruding blocks (150) are perpendicular to the end face of the opening at corresponding positions.

2. The auxiliary fixture for mounting the low-voltage terminal shielding layer according to claim 1, wherein a plurality of mounting grooves are formed in the inner wall of the extrusion block (110) at intervals in the circumferential direction, and each of the protruding blocks (150) is embedded in the corresponding mounting groove and extends out of the opening.

3. The low voltage terminal shielding layer installation auxiliary tool according to claim 2, wherein each of the bumps (150) has a uniform length extending out of the opening.

4. The low voltage terminal shielding layer installation auxiliary tool according to claim 1, wherein a mounting portion (121) is provided at the top of the end cap (120), the mounting portion (121) includes a first protrusion (1211) and a second protrusion (1212), and the first protrusion (1211) and the second protrusion (1212) are disposed opposite to each other;

the pin shaft holes (1213) are formed in the first protruding portion (1211) and the second protruding portion (1212), and the pin shaft holes (1213) of the first protruding portion (1211) and the pin shaft holes (1213) of the second protruding portion (1212) are located at the same positions.

5. The low voltage terminal shielding layer installation auxiliary tool according to claim 4, wherein the fastener (130) comprises a first connecting piece (131) and a second connecting piece (132), and the first connecting piece (131) and the second connecting piece (132) are hollow structures and are integrally formed;

the side walls of the first connecting piece (131) are respectively provided with a mounting hole (133), and the fastener (130) is rotatably connected with the mounting part (121) through pin shafts (140) sequentially penetrating through pin shaft holes (1213) of the first protruding part (1211), the mounting holes (133) of the first connecting piece (131) and the pin shaft holes (1213) of the second protruding part (1212).

6. The low voltage terminal shielding layer installation auxiliary tool according to claim 5, wherein the width of the first connecting member (131) is smaller than the width of the second connecting member (132).

7. The low voltage terminal shielding layer installation auxiliary tool according to claim 1, wherein the outer diameter of the pin shaft (140) is 2mm.

8. The low voltage terminal shielding layer installation auxiliary tool according to claim 1, wherein a plurality of through holes (122) are formed in a side of the end cover (120) which is far away from the connection with the extrusion block (110).

9. A low voltage terminal comprising a housing (201) and a shielding layer (202), said shielding layer (202) being oppositely arranged within said housing (201);

the housing (201) is provided with a plugging slot (203), and the low-voltage terminal shielding layer installation auxiliary tool as set forth in any one of claims 1-8 is plugged into the plugging slot (203) so as to squeeze the shielding layer (202) through each of the protruding blocks (150) of the low-voltage terminal shielding layer installation auxiliary tool.

10. The low-voltage terminal according to claim 9, wherein a chuck (204) is disposed outside the housing (201), and the low-voltage terminal shielding layer installation auxiliary tool is fixedly connected with the housing (201) through the fastener (130) clamped at the chuck (204) after being inserted into the insertion groove (203).