CN216980791U - Waterproof structure of connector base for battery pack and battery pack - Google Patents
Waterproof structure of connector base for battery pack and battery pack Download PDFInfo
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- CN216980791U CN216980791U CN202123132578.7U CN202123132578U CN216980791U CN 216980791 U CN216980791 U CN 216980791U CN 202123132578 U CN202123132578 U CN 202123132578U CN 216980791 U CN216980791 U CN 216980791U
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- battery pack
- plug
- connector base
- mounting hole
- waterproof structure
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Abstract
The utility model relates to a waterproof structure of a connector base for a battery pack and the battery pack, wherein the waterproof structure of the connector base for the battery pack comprises a connector base, the connector base is provided with a mounting hole which is through from front to back, the mounting hole is used for mounting a terminal of a connector, an opening at the front end of the mounting hole is used for facing the inside of a battery pack shell, and an opening at the rear end of the mounting hole is used for facing the outside of the battery pack shell; the waterproof structure of the connector base for the battery pack comprises a plug which is arranged in a mounting hole from back to front, the plug is in sealing fit with the hole wall of the mounting hole so as to realize sealing of the mounting hole, and the waterproof structure of the connector base for the battery pack also comprises a fastening bolt which is arranged in the mounting hole from front to back, and the fastening bolt is in threaded connection with the plug so as to realize fixing of the connector base and the plug. The plug of the waterproof structure of the connector base for the battery pack can only be assembled and disassembled towards the opening in the battery pack shell through the mounting hole, so that the risk that the plug is separated from the mounting hole is reduced.
Description
Technical Field
The utility model relates to the field of battery packs, in particular to a waterproof structure of a battery pack.
Background
At present, a battery pack of a power supply system needs to adopt a heating film or a liquid-heat heating mode to carry out heat management on an electric core inside the battery pack according to the requirement of a finished automobile. The heating film is arranged in the battery pack and is tightly attached to the battery core for installation, and when the heating film heats the battery core, the heating film needs to be externally connected with a high-voltage power supply, so that a connector for connecting the heating film with the high-voltage power supply needs to be installed on the shell of the battery pack. For the convenience of customer selection, two heating methods, namely a heating film and liquid heat, are generally adopted on the battery pack. When a liquid heating mode is adopted to heat a battery core, the connector needs to be sealed in a plugging mode, the plugging scheme of the existing connector is shown in fig. 1, the connector base 1 is installed on a battery pack shell 201, a waterproof rubber gasket 16 is arranged between the connector base 1 and the battery pack shell 201, the connector base 1 is provided with a mounting hole 3 which penetrates through a pipe from front to back, a terminal 11 is installed in the mounting hole 3 from front to back, the terminal 11 is in sealing fit with the hole wall of the mounting hole 3 through a terminal sealing ring 12, a plug 9 is installed in the mounting hole 3 from back to front and is plugged with the terminal 11, in addition, the plug 9 is in sealing fit with the hole wall of the mounting hole 3 through a plug sealing ring 13, and a through hole in the plug 9 is plugged through a sealing plug 10.
The protection requirement of connector IPX8 can be satisfied to the shutoff scheme of current connector, but need the installation terminal on the connector base, need install the plug simultaneously, and the cost is higher, and the terminal exists to drop to the inside problem that causes insulating risk of battery package in addition.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a waterproof structure of a connector base for a battery pack, which is used for solving the problems of high cost and insulation risk caused by easy falling of terminals when a connector is plugged. The utility model also provides a battery pack comprising the waterproof structure of the connector base for the battery pack.
The technical scheme of the waterproof structure of the connector base for the battery pack provided by the utility model is as follows:
the waterproof structure of the connector base for the battery pack comprises a connector base which is used for being fixed on a battery pack shell, wherein the connector base is provided with a mounting hole which is through from front to back, the mounting hole is used for mounting a terminal of the connector, an opening at the front end of the mounting hole is used for facing the inside of the battery pack shell, and an opening at the rear end of the mounting hole is used for facing the outside of the battery pack shell; the waterproof structure of the connector base for the battery pack comprises a plug which is arranged in the mounting hole from back to front and is in blocking fit with the wall of the mounting hole from front to back, the plug is in sealing fit with the wall of the mounting hole to seal the mounting hole, the waterproof structure of the connector base for the battery pack further comprises a fastening bolt which is arranged in the mounting hole from front to back and is in blocking fit with the wall of the mounting hole from front to back, and the fastening bolt is in threaded connection with the plug to fix the connector base and the plug.
Has the advantages that: the plug of the waterproof structure of the connector base for the battery pack is arranged in the mounting hole from back to front, the fastening bolt is arranged in the mounting hole from front to back, the plug is connected with the fastening bolt through threads to fix the plug and the connector base, the plug can be assembled and disassembled towards an opening in the shell of the battery pack through the mounting hole while realizing the sealing fit with the hole wall of the mounting hole, the risk of failure of the fastening bolt due to the corrosion of the fastening bolt by external rain and other factors is reduced, the risk of the plug falling out of the mounting hole is further reduced, and the plug is not required to be installed during plugging, the terminal is not required to be installed in the connector base, the plugging cost of the connector is reduced, and the risk of falling of the terminal is avoided.
Furthermore, the end cap comprises an injection molding end cap block and a nut embedded on the end cap block, and the end cap is connected with the fastening bolt through the nut in a threaded mode.
Has the beneficial effects that: the injection-molded plug block is low in cost, and the plug is connected more firmly through the nut and the fastening bolt in a threaded manner.
Further, the nut is provided with a nut groove on the periphery.
Has the advantages that: the injection-molded plug block is matched with the front and back stops of the groove wall of the nut groove, so that the connection stability of the nut and the plug block is enhanced, and the nut is not easy to separate from the plug block.
Furthermore, the plug block is of a hollow structure. Has the advantages that: the plug block adopts a hollow structure, so that materials can be saved, and the cost can be reduced.
Furthermore, the plug block is provided with a plug block groove with a backward opening, so that the plug block is of a hollow structure.
Has the advantages that: by adopting the structure form, the structure is simple, and the processing and the forming are convenient.
Furthermore, the periphery of the plug is provided with a sealing groove, and a plug sealing ring used for realizing the sealing fit of the plug and the hole wall of the mounting hole is installed in the sealing groove.
Has the advantages that: due to the arrangement of the plug sealing ring, the sealing effect of the plug on the mounting hole is enhanced.
Furthermore, a bushing for inserting a fastening bolt is installed on the connector base, the bushing is provided with an annular flange, and the fastening bolt is in front-and-back stop fit with the hole wall of the mounting hole through the annular flange of the bushing.
Has the beneficial effects that: the arrangement of the bush is convenient for the positioning and installation of the fastening bolt.
Furthermore, the mounting holes are oval holes, at least two bushings are arranged, and the annular flanges of the adjacent bushings are in clearance fit.
Has the advantages that: the mutual positioning can be realized through clearance fit between the bushings, and the positioning and installation of the bushings are facilitated.
Further, the fastening bolts are at least two, and the axes of the fastening bolts are arranged in parallel.
Has the beneficial effects that: the arrangement of at least two fastening bolts strengthens the connection stability of the plug and the connector, so that the plug is not easy to deviate from the mounting hole.
The technical scheme of the battery pack provided by the utility model is as follows:
the battery pack comprises a battery pack shell and a waterproof structure of a connector base for the battery pack, wherein the waterproof structure of the connector base for the battery pack is arranged on the battery pack shell; the waterproof structure of the connector base for the battery pack comprises a plug which is arranged in the mounting hole from back to front and is in blocking fit with the wall of the mounting hole from front to back, the plug is in sealing fit with the wall of the mounting hole to seal the mounting hole, the waterproof structure of the connector base for the battery pack further comprises a fastening bolt which is arranged in the mounting hole from front to back and is in blocking fit with the wall of the mounting hole from front to back, and the fastening bolt is in threaded connection with the plug to fix the connector base and the plug.
Has the advantages that: the plug of the battery pack is arranged in the mounting hole from back to front, the fastening bolt is arranged in the mounting hole from front to back, the plug is connected with the fastening bolt through threads to fix the plug and the connector base, the plug is in sealing fit with the hole wall of the mounting hole, and can only be disassembled and assembled towards the opening in the battery pack shell through the mounting hole, so that the risk of failure of the fastening bolt due to corrosion of the fastening bolt by external rain and other factors is reduced, the risk of falling off of the plug from the mounting hole is further reduced, the plug is not required to be installed during plugging, the terminal is not required to be installed in the connector base, the plugging cost of the connector is reduced, and the risk of falling of the terminal is avoided.
Furthermore, the plug comprises a plug block formed by injection molding and a nut embedded on the plug block, and the plug is in threaded connection with the fastening bolt through the nut.
Has the advantages that: the injection-molded plug block is low in cost, and the plug is in threaded connection with the fastening bolt through the nut, so that the connection is firmer.
Further, the nut has a nut groove on the outer circumference.
Has the advantages that: the injection-molded plug block is matched with the front and back stops of the groove wall of the nut groove, so that the connection stability of the nut and the plug block is enhanced, and the nut is not easy to separate from the plug block.
Furthermore, the plug block is of a hollow structure.
Has the advantages that: the plug block adopts a hollow structure, so that materials can be saved, and the cost can be reduced.
Furthermore, the plug block is provided with a plug block groove with a backward opening, so that the plug block is of a hollow structure.
Has the advantages that: by adopting the structure form, the structure is simple, and the processing and the forming are convenient.
Furthermore, a sealing groove is formed in the periphery of the plug, and a plug sealing ring used for achieving sealing and matching of the plug and the hole wall of the mounting hole is mounted in the sealing groove.
Has the advantages that: due to the arrangement of the plug sealing ring, the sealing effect of the plug on the mounting hole is enhanced.
Furthermore, a bushing for inserting a fastening bolt is installed on the connector base, the bushing is provided with an annular flange, and the fastening bolt is in stop fit with the front and back of the hole wall of the installation hole through the annular flange of the bushing.
Has the advantages that: the arrangement of the bush is convenient for the positioning and installation of the fastening bolt.
Furthermore, the mounting holes are oval holes, the number of the bushings is at least two, and the annular flanges of the adjacent bushings are in clearance fit.
Has the advantages that: the mutual positioning can be realized through clearance fit between the bushings, and the bushings are convenient to position and mount.
Further, the fastening bolts are at least two, and the axes of the fastening bolts are arranged in parallel.
Has the advantages that: the arrangement of at least two fastening bolts strengthens the connection stability of the plug and the connector, so that the plug is not easy to deviate from the mounting hole.
Drawings
FIG. 1 is a schematic diagram of a prior art connector for achieving a sealing seal;
fig. 2 is a schematic structural view of a waterproof structure of a battery pack connector base according to embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a battery pack.
Description of reference numerals: 1. a connector base; 2. a battery pack; 201. a battery pack housing; 3. mounting holes; 4. fastening a bolt; 5. a plug; 501. a plugging block; 502. a nut; 6. a retainer ring; 7. a plug sealing ring; 8. a bushing; 801. an annular flange; 802. a sleeve body; 9. a plug; 10. a sealing plug; 11. a terminal; 12. a terminal seal ring; 13. a plug seal ring; 14. a nut groove; 15. a plug block groove; 16. a waterproof rubber mat.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention 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 present invention, 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 derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is to be noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the embodiments, are only used for distinguishing one entity or operation from another entity or operation, and do not necessarily require or imply that such actual relationships or orders between the entities or operations exist. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the appearances of the phrase "comprising an … …" or similar limitation may be present without necessarily excluding the presence of additional identical elements in the process, method, article, or apparatus that comprises the same elements.
In the description of the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "connected" that may be present are to be construed broadly, e.g., as a fixed connection, a releasable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
as shown in fig. 2 and 3, the waterproof structure of the connector base for the battery pack includes the connector base 1, the connector base 1 is fixedly installed on the battery pack case 201, the waterproof rubber gasket 16 is arranged between the connector base 1 and the battery pack case 201, the battery pack case 201 has the installation hole 3 which is through from front to back, the front end opening of the installation hole 3 faces the inside of the battery pack case 201, the rear end opening faces the outside of the battery pack case 201, in order to prevent external rainwater, dust and the like from entering the inside of the battery pack case 201 through the installation hole 3 and damaging the battery pack 2, the waterproof structure of the connector base for the battery pack further includes a plug 5 which is in sealing fit with the hole wall of the installation hole 3, and a fastening bolt 4 which fixes the plug 5 and the connector base 1.
In the present embodiment, the cross section of the mounting hole 3 is elliptical, and the wall of the mounting hole 3 has a retaining ring 6 surrounding the wall of the hole.
When the plug 5 and the fastening bolt 4 are installed, the plug 5 needs to be installed into the installation hole 3 from back to front, the fastening bolt 4 needs to be installed into the installation hole 3 from front to back, the plug 5 is in front-back stop fit with the stop surface on the wall of the installation hole 3, the fastening bolt 4 is in front-back stop fit with the retaining ring 6, the fastening bolt 4 is in threaded connection with the plug 5, the plug 5 and the connector base 1 are fixed, and after the plug 5 and the connector base 1 are fixed, the plug 5 blocks and seals the installation hole 3. It should be noted that the fastening bolt 4 can only be disassembled and assembled towards the opening inside the battery pack case 201 through the mounting hole 3, so that the risk that the fastening bolt 4 fails due to corrosion of the fastening bolt 4 by external rain and other factors is reduced, and further, the risk that the plug 5 is separated from the mounting hole 3 is reduced.
In this embodiment, the plug 5 includes an injection-molded plug block 501 and a nut 502 embedded on the plug block 501, and the plug 5 is screwed to the fastening bolt 4 by the nut 502.
In order to enhance the connection stability of the nut 502 and the plug block 501 and make the nut 502 not easy to separate from the plug block 501, the nut groove 14 is arranged on the periphery of the nut 502, and the injection molded plug block 501 is in front-back stop fit with the groove wall of the nut groove 14.
In addition, a sealing groove is formed in the periphery of the plug block 501, a plug sealing ring 7 is arranged in the sealing groove, and when the plug 5 plugs the mounting hole 3, the plug sealing ring 7 is in sealing fit with the hole wall of the mounting hole 3, so that the sealing effect of the plug 5 on the mounting hole 3 is enhanced.
Since the cross section of the mounting hole 3 is elliptical, a bushing 8 is mounted on the connector base 1 in order to facilitate positioning and mounting of the fastening bolt 4. The bush 8 includes a sleeve body 802 and an annular flange 801 extending forward and backward, and has a through hole through which the fastening bolt 4 passes, and the fastening bolt 4 is engaged with the retainer ring 6 by the annular flange 801 to be stopped forward and backward. In addition, in order to enhance the connection stability of the plugs 5 and the connector mounting holes 3, in the present embodiment, two fastening bolts 4 are provided. Correspondingly, there are two bushings 8, and the annular flanges 801 of the two bushings 8 are clearance fit.
More specifically, in this embodiment, the plug block 501 is a hollow structure, and the plug block 501 is provided with a plug block groove 15 that opens backwards, so that the plug block 501 is a hollow structure, and the plug block 501 adopts a hollow structure, which can save materials and reduce cost. In addition, in the embodiment, the plug block 501 is an injection molding member, so that the hollow structure can effectively avoid process defects generated during injection molding.
Further, a washer is provided between the fastening bolt 4 and the bush 8.
This use neotype battery to wrap installation process with waterproof structure of connector base: the connector base 1 is fixedly installed on the battery pack shell 201, the bushing 8 is installed into the installation hole 3 from front to back inside the battery pack shell 201, then the plug 5 is installed into the installation hole 3 from back to front outside the battery pack shell 201, then the fastening bolt 4 is inserted into the bushing 8 and screwed to achieve fastening connection of the plug 5 of the fastening bolt 4, and at the moment, installation of the waterproof structure of the connector base for the battery pack is completed.
In embodiment 2 of the waterproof structure of the battery pack connector base, unlike embodiment 1, the nut is not embedded in the plug, the threaded hole is formed in the plug, and the fastening bolt is screwed to the plug through the threaded hole in the plug.
In embodiment 3 of the waterproof structure of the battery pack connector base according to the present invention, the plug is a rubber member, and in other embodiments, the plug may be a metal member, unlike embodiment 1.
In embodiment 5 of the waterproof structure of the battery pack connector base according to the present invention, the plug block has a solid structure, unlike embodiment 1.
Embodiment 6 of the waterproof structure of the battery pack connector base according to the present invention is different from embodiment 1 in that a backing plate is provided between a fastening bolt and a retainer ring, the backing plate is provided with a bolt hole through which the fastening bolt passes, and the fastening bolt is engaged with the retainer ring by being stopped forward and backward by the backing plate. Or in other embodiments, the cross section of the mounting hole is circular, and the fastening bolt is directly matched with the retainer ring in a stop way.
In the embodiment of the battery pack of the present invention, the battery pack includes the battery pack case and the waterproof structure of the connector base for the battery pack mounted on the battery pack case, and the waterproof structure of the connector base for the battery pack is the same as that of the connector base for the battery pack in any embodiment of the waterproof structure of the connector base for the battery pack of the present invention, and therefore, the description thereof is omitted.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. A waterproof structure of a connector base for a battery pack comprises a connector base (1) fixed on a battery pack shell (201), wherein the connector base (1) is provided with a mounting hole (3) which is through from front to back, the mounting hole (3) is used for mounting a terminal (11) of a connector, an opening at the front end of the mounting hole (3) is used for facing the inside of the battery pack shell (201), and an opening at the rear end of the mounting hole is used for facing the outside of the battery pack shell (201); the waterproof structure of the connector base for the battery pack is characterized by comprising a plug (5) which is arranged in the mounting hole (3) from back to front and is in stop fit with the front and back of the hole wall of the mounting hole (3), wherein the plug (5) is in seal fit with the hole wall of the mounting hole (3) so as to seal the mounting hole (3), the waterproof structure of the connector base for the battery pack further comprises a fastening bolt (4) which is arranged in the mounting hole (3) from front to back and is in stop fit with the front and back of the hole wall of the mounting hole (3), and the fastening bolt (4) is in threaded connection with the plug (5) so as to fix the connector base (1) and the plug (5).
2. The waterproof structure of the connector base for the battery pack according to claim 1, wherein the plug (5) comprises an injection-molded plug block (501) and a nut (502) embedded in the plug block (501), and the plug (5) is in threaded connection with the fastening bolt (4) through the nut (502).
3. The connector base waterproof structure for battery pack according to claim 2, wherein the nut (502) has a nut groove (14) at its outer periphery.
4. The waterproof structure of a connector base for a battery pack according to claim 2, wherein the plug block (501) has a hollow structure.
5. The waterproof structure of a connector base for a battery pack according to claim 4, wherein the plug block (501) is provided with a plug block groove (15) opening backward so that the plug block (501) has a hollow structure.
6. The waterproof structure of the connector base for the battery pack according to any one of claims 1 to 5, wherein a seal groove is formed in the outer periphery of the plug (5), and a plug seal ring (7) for sealing and matching the plug (5) with the wall of the mounting hole (3) is installed in the seal groove.
7. The waterproof structure of a connector base for a battery pack according to any one of claims 1 to 5, wherein a bushing (8) for inserting the fastening bolt (4) is mounted on the connector base (1), the bushing (8) has an annular flange (801), and the fastening bolt (4) is in front-rear stop fit with the hole wall of the mounting hole (3) through the annular flange (801) of the bushing (8).
8. The waterproof structure of a connector base for a battery pack according to claim 7, wherein the mounting holes (3) are oval holes, and at least two bushings (8) are provided, and the annular flanges (801) of adjacent bushings (8) are fitted with a clearance.
9. The waterproof structure of a connector base for a battery pack according to any one of claims 1 to 5, wherein at least two fastening bolts (4) are provided, and the axes of the fastening bolts (4) are arranged in parallel.
10. A battery pack, characterized by comprising a battery pack case (201) and a connector base waterproof structure for a battery pack mounted on the battery pack case (201), the connector base waterproof structure for a battery pack being the connector base waterproof structure for a battery pack according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123132578.7U CN216980791U (en) | 2021-12-14 | 2021-12-14 | Waterproof structure of connector base for battery pack and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123132578.7U CN216980791U (en) | 2021-12-14 | 2021-12-14 | Waterproof structure of connector base for battery pack and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216980791U true CN216980791U (en) | 2022-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123132578.7U Active CN216980791U (en) | 2021-12-14 | 2021-12-14 | Waterproof structure of connector base for battery pack and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216980791U (en) |
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2021
- 2021-12-14 CN CN202123132578.7U patent/CN216980791U/en active Active
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