CN215680873U

CN215680873U - Wire harness fixing structure and battery pack

Info

Publication number: CN215680873U
Application number: CN202121772383.6U
Authority: CN
Inventors: 胡山; 李敏; 张金虎
Original assignee: Sany Automobile Hoisting Machinery Co Ltd
Current assignee: Sany Automobile Hoisting Machinery Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-28
Anticipated expiration: 2031-07-30

Abstract

The utility model provides a wire harness fixing structure and a battery pack, wherein the wire harness fixing structure comprises a wire harness guide frame and a fixing frame, and a wire harness fixing table is formed on the wire harness guide frame; the fixing frame is fixedly connected with the wiring harness guide frame and is suitable for being fixedly connected with the battery module. According to the wiring harness fixing structure and the battery pack, the wiring harness fixing frame can be directly fixed on the battery module and used for fixing the wiring harness, a wiring groove does not need to be designed on the battery module or a fixing interface does not need to be designed on the lower shell of the battery pack, the standard module design of the battery can be adapted, and occupied space and design cost are effectively reduced.

Description

Wire harness fixing structure and battery pack

Technical Field

The utility model relates to the technical field of battery pack installation, in particular to a wiring harness fixing structure and a battery pack.

Background

At present, the holding capacity of domestic electric automobiles is rapidly increased, power batteries are a direct power source of the electric automobiles, and the assembly process of the power batteries plays an important role in the safety of the power batteries and the electric automobiles.

Generally contain battery case in the battery package, the block terminal, battery management system, thermal management system, several important subassemblies such as high-low pressure pencil, high-low pressure pencil contains high-pressure power line, heater wire in the battery package, the inside low pressure communication pencil of battery package, play energy transfer and signal transmission's effect, if there is not reliable pencil fixed knot structure and assembly process, in the vehicle use, the pencil is probably because of the vibration, the friction produces the damage and leads to its reliability and security to reduce, can lead to battery package to catch fire or explode seriously, cause the injury to the personnel.

Currently, wiring harnesses in a battery pack are fixed mainly by designing a wiring slot on a battery module or designing a fixing interface on a lower shell of the battery pack. The slot is designed on the battery module, the disadvantage is that space and interface are specially reserved on the module, but the standard module pushed in the industry at present has no redundant space except for the fixed interface and the electric interface, and the cost for developing the non-standard module is relatively high; design interface under the battery package on the casing, the drawback is that the casing highly is higher than the height of module down, and the weight of casing can increase, can not satisfy the demand of lightweight.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wire harness fixing structure and a battery pack, which are used for solving the problems of large occupied space and high installation cost in wire harness fixing in the prior art.

The present invention provides a wire harness fixing structure, including:

the wire harness guide frame is provided with a wire harness fixing table;

the fixing frame is fixedly connected with the wiring harness guide frame and is suitable for being fixedly connected with the battery module.

According to the wire harness fixing structure provided by the utility model, the wire harness fixing structure further comprises an elastic piece, and the elastic piece is arranged on one side, close to the battery module, of the wire harness guide frame.

According to the wire harness fixing structure provided by the utility model, the two sides of the wire harness guide frame are respectively provided with the connecting parts, the connecting parts extend along the length direction of the wire harness guide frame, one side of each connecting part, which is close to the wire harness guide frame, is respectively and correspondingly provided with the elastic part, and the fixing frame is fixedly connected with one side, which is far away from the battery module, of the connecting part.

According to the wiring harness fixing structure provided by the utility model, the wiring harness guide frame is provided with the positioning hole; the positioning holes are located on the wire harness fixing table, and more than two positioning holes are arranged at intervals along the extending direction of the wire harness fixing table.

According to the wiring harness fixing structure provided by the utility model, the fixing frame is provided with the first through hole and is suitable for being fixedly connected with the battery module through the bolt penetrating through the first through hole.

According to the wiring harness fixing structure provided by the utility model, the fixing frame comprises a first frame body and a second frame body, at least one pair of the first frame body and at least one pair of the second frame body are respectively arranged, each pair of the first frame body and each pair of the second frame body are respectively symmetrical, the first frame body is suitable for being connected with a single battery on a battery module, and the second frame body is suitable for being simultaneously connected with two adjacent batteries on the battery module.

According to the wiring harness fixing structure provided by the utility model, at least one pair of first through holes is arranged on the second frame body, and each pair of first through holes is arranged at intervals along the arrangement direction of the batteries on the battery module.

According to the wire harness fixing structure provided by the utility model, the wire harness guide frame is formed by bending a metal plate.

The utility model also provides a battery pack which comprises a battery module, a wire harness, a fixing bolt and any one of the wire harness fixing structures, wherein the fixing frame is provided with a first through hole, the threaded end of the fixing bolt penetrates through the first through hole, the wire harness fixing structure is fixedly connected with the battery module through the fixing bolt, and the wire harness is fixedly connected with the wire harness fixing structure.

According to the battery pack provided by the utility model, the battery module is provided with the second through hole, the first through hole and the second through hole are coaxial, and the threaded end of the fixing bolt penetrates through the first through hole and the second through hole simultaneously and then is connected with the shell.

According to the wiring harness fixing structure and the battery pack, the wiring harness fixing frame can be directly fixed on the battery module and used for fixing the wiring harness, a wiring groove does not need to be designed on the battery module or a fixing interface does not need to be designed on the lower shell of the battery pack, the standard module design of the battery can be adapted, and occupied space and design cost are effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a wire harness fixing structure provided in the present invention;

fig. 2 is an exploded view of a wire harness fixing structure provided in the present invention;

fig. 3 is a schematic view of the overall structure of a battery pack according to the present invention;

fig. 4 is an exploded view of a battery pack according to the present invention.

Reference numerals:

100. a harness guide frame; 110. A wire harness fixing table; 111. Positioning holes;

120. a connecting portion; 200. A fixed mount; 210. A first frame body;

211. an installation part; 212. A first through hole; 220. A second frame body;

300. an elastic member; 400. A battery module; 410. A second through hole;

500. a wire harness; 510. A body portion; 520. A branched moiety;

600. binding a belt; 700. And (5) fixing the bolt.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific 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 an embodiment of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

A wire harness fixing structure according to an embodiment of the present invention will be described with reference to fig. 1 and 2, where fig. 1 is a schematic view of an overall structure of the wire harness fixing structure according to the embodiment of the present invention, and fig. 2 is an exploded view of the wire harness fixing structure according to the embodiment of the present invention. The wire harness fixing structure in the embodiment of the present invention can be mounted on the battery module 400 of the battery pack for fixing the wire harness 500 of the battery pack.

In the embodiment of the present invention, the wire harness fixing structure includes a wire harness guide frame 100 and a fixing frame 200, the wire harness guide frame 100 is a long bar structure, a wire harness fixing table 110 is formed on the wire harness guide frame 100, and the wire harness fixing table 110 can be used as a main body part 510 for fixing the wire harness 500. In order to achieve a good fixing effect, the harness guide frame 100 and the harness fixing stand 110 provided on the harness guide frame 100 extend in the arrangement direction of the harness 500.

Alternatively, the wire harness guide frame 100 is formed by bending a sheet metal. The wire harness guide frame 100 is bent upward at the middle in the width direction to form a wire harness fixing base 110, and portions on both sides of the wire harness fixing base 110 form connecting portions 120, and the connecting portions 120 extend in the longitudinal direction of the wire harness guide frame 100.

In one embodiment of the present invention, the wire harness guide 100 is provided with the elastic member 300 at a side close to the battery module 400 (i.e., a side facing away from the wire harness 500), the elastic member 300 is provided along a length direction of the wire harness guide 100, the elastic member 300 can be used to absorb an assembly gap between the wire harness guide 100 and the battery module 400, and the elastic member 300 can also play a role of buffering and wear resistance since a cover structure of the battery module 400 is generally a plastic structure.

Alternatively, the elastic member 300 is provided in two, the two elastic members 300 are provided corresponding to the two connection parts 120 located at both sides of the harness guide 100, and the elastic members 300 are provided between the connection parts 120 and the battery module 400.

Optionally, the elastic member 300 is bonded to the connecting portion 120 for easy installation, and the displacement of the elastic member 300 during use can be avoided.

In one embodiment of the present invention, the wire harness guide frame 100 is provided with a positioning hole 111, and the positioning hole 111 penetrates through the wire harness guide frame 100. When the wire harness 500 is installed, the latch type cable tie 600 may be preset on the wire harness 500, and the installation of the main body portion 510 of the wire harness 500 may be completed by engaging the latch type cable tie 600 with the positioning hole 111 in a pressing manner. The positioning hole 111 can be used not only for fixing the main body portion 510 of the wire harness 500 but also for positioning during installation. The wire harness guide frame 100 and the wire harness 500 are matched in such a way, so that the wire harness guide frame has the advantages of being simple to install and easy to operate.

Optionally, the positioning holes 111 are located on the wire harness fixing table 110, and two or more positioning holes 111 are arranged at intervals along the extending direction of the wire harness fixing table 110, so that multi-point fixing can be performed on the main body part 510 of the wire harness 500, the fixing effect of the main body part 510 of the wire harness 500 is ensured, and the straightness of the main body part 510 of the wire harness 500 is favorably ensured.

In the embodiment of the present invention, one end of the fixing frame 200 is vertically fixed to the wire harness guide frame 100, the connection position of the fixing frame 200 and the wire harness guide frame 100 is located on the side of the connection portion 120 away from the battery module 400, and the fixing frame 200 and the connection portion 120 can be fixed by spot welding.

The other end of the holder 200 is bent to form a mounting portion 211, and the mounting portion 211 is attached to the upper end surface of the battery module 400. The mounting portion 211 is provided with a first through hole 212, and the first through hole 212 penetrates the mounting portion 211 in the thickness direction of the wire harness guide 100. The holder 200 is adapted to be fixedly coupled with the battery module 400 by bolts passing through the first through holes 212. In order to reduce the installation volume, the upper side line position of the battery module 400 may be provided in a stepped shape, and the installation part 211 is fixed at the stepped position of the battery module 400 by bolts. The fixing bracket 200 can not only serve to fix the wire harness guide bracket 100 but also serve to fix the branch part 520 of the wire harness 500.

In one embodiment of the present invention, the holder 200 includes a first holder 210 and a second holder 220, at least one pair of the first holder 210 and the second holder 220 is respectively disposed, and each pair of the first holder 210 and each pair of the second holder 220 are respectively symmetrical. The first and

second housings

210 and 220 can each fix the branch part 520 of the wire harness 500, and the first housing 210 is adapted to be connected with a single battery on the battery module 400, and the second housing 220 is adapted to be simultaneously connected with two adjacent batteries on the battery module 400. In the mounting process, the first frame body 210 may be fixed to the harness guide 100 at a position corresponding to the end of the battery module 400, and the second frame body 220 may be fixed to the harness guide 100 at a position where it contacts the adjacent battery of the battery module 400. The number of the first frame 210 and the second frame 220 is determined according to the corresponding number of the battery modules 400 and the branch parts 520 of the wire harness 500, so as to ensure that each branch part 520 of the wire harness 500 can be well fixed.

Optionally, the second frame body 220 is provided with at least one pair of first through holes 212, and each pair of first through holes 212 are arranged at intervals along the arrangement direction of the batteries on the battery module 400, so that the second frame body 220 can be simultaneously connected with two adjacent batteries through bolts, thereby increasing the fixing strength of the second frame body 220 and limiting the batteries.

As shown in fig. 3 and 4, in one embodiment of the present invention, there is also provided a battery pack including a battery module 400, a wire harness 500, a fixing bolt 700, and a wire harness fixing structure of any one of the above. The battery module 400 includes a plurality of batteries, the wire harness fixing structure is fixedly connected with the battery module 400 through fixing bolts 700, and the wire harness 500 is fixedly connected with the wire harness fixing structure through fixing members such as a tie 600. The battery pack with the structure does not need to be provided with a wire groove on the battery module 400, can realize the fixation of the wire harness 500 through the wire harness fixing structure, can adapt to standard modules, does not need to develop non-standard modules, and effectively reduces the cost.

In an embodiment of the present invention, the battery pack further includes a housing, the battery module 400 is provided with second through holes 410, specifically, the corners of each battery on the battery module 400 are respectively provided with the second through holes 410, the second through holes 410 penetrate through the battery module 400 in the vertical direction, when the harness fixing structure is mounted on the battery module 400, the first through holes 212 and the second through holes 410 are in one-to-one correspondence, and the first through holes 212 and the second through holes 410 are coaxial. The threaded end of the fixing bolt 700 penetrates through the first through hole 212 and the second through hole 410 and then is connected with the housing, so that the fixed connection between the battery module 400 and the housing and the fixed connection between the wire harness fixing structure and the battery module 400 can be realized, and the installation process is simplified.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A wire harness fixing structure, comprising:

the wire harness guide frame is provided with a wire harness fixing table;

2. The wire harness fixing structure according to claim 1, further comprising an elastic member provided at a side of the wire harness guide frame adjacent to the battery module.

3. The wire harness fixing structure according to claim 2, wherein connecting portions are respectively provided at both sides of the wire harness guide frame, the connecting portions extend in a length direction of the wire harness guide frame, an elastic member is respectively provided at a side of each of the connecting portions close to the wire harness guide frame, and the fixing frame is fixedly connected to a side of the connecting portion away from the battery module.

4. The wire harness fixing structure according to claim 1, wherein a positioning hole is provided on the wire harness guide frame; the positioning holes are located on the wire harness fixing table, and more than two positioning holes are arranged at intervals along the extending direction of the wire harness fixing table.

5. The wire harness fixing structure according to claim 1, wherein the fixing frame is provided with a first through hole, and the fixing frame is adapted to be fixedly connected with a battery module by a bolt passing through the first through hole.

6. The wire harness fixing structure according to claim 5, wherein the fixing frame comprises a first frame body and a second frame body, the first frame body and the second frame body are respectively provided with at least one pair, each pair of the first frame body and each pair of the second frame body are respectively symmetrical, the first frame body is suitable for being connected with a single battery on the battery module, and the second frame body is suitable for being simultaneously connected with two adjacent batteries on the battery module.

7. The wire harness fixing structure according to claim 6, wherein at least one pair of the first through holes is provided on the second frame body, and each pair of the first through holes is provided at intervals in an arrangement direction of the batteries on the battery module.

8. The wire harness fixing structure according to claim 1, wherein the wire harness guide frame is formed by sheet metal bending.

9. A battery pack, comprising a battery module, a wire harness, a fixing bolt, and the wire harness fixing structure according to any one of claims 1 to 8, wherein the fixing frame is provided with a first through hole, a threaded end of the fixing bolt passes through the first through hole, the wire harness fixing structure is fixedly connected with the battery module through the fixing bolt, and the wire harness is fixedly connected with the wire harness fixing structure.

10. The battery pack of claim 9, further comprising a housing, wherein the battery module is provided with a second through hole, the first through hole and the second through hole are coaxial, and the threaded end of the fixing bolt passes through the first through hole and the second through hole simultaneously and then is connected to the housing.