CN219739063U - Joint pipe structure and battery pack inner cooling plate assembly - Google Patents
Joint pipe structure and battery pack inner cooling plate assembly Download PDFInfo
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- CN219739063U CN219739063U CN202321200924.7U CN202321200924U CN219739063U CN 219739063 U CN219739063 U CN 219739063U CN 202321200924 U CN202321200924 U CN 202321200924U CN 219739063 U CN219739063 U CN 219739063U
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- pipe body
- adhesive layer
- joint pipe
- soft
- pipe structure
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- 238000001816 cooling Methods 0.000 title abstract description 9
- 239000012790 adhesive layer Substances 0.000 claims abstract description 88
- 239000003292 glue Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 29
- 239000010410 layer Substances 0.000 claims description 15
- 239000011241 protective layer Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 238000011900 installation process Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a joint pipe structure and a battery pack inner cooling plate assembly, and relates to the technical field of battery pack cooling systems. The joint pipe structure comprises a pipe body; the pipe body comprises a plurality of laminated adhesive layers, wherein the adhesive layer positioned at the innermost side of the pipe body is a soft adhesive layer, and at least one adhesive layer among the rest adhesive layers is a hard adhesive layer; an annular groove is formed between the outer wall of the pipe body and the soft adhesive layer, and extends along the circumferential direction of the pipe body. This joint pipe structure can provide the deformation space for the body when two adjacent opponent pieces of intercommunication through seting up annular recess between the outer wall of body to the soft glue film, and the tolerance that produces in the installation can be absorbed to the recess this moment, improves the assembly fault-tolerant rate, can effectively guarantee the axiality between two opponent pieces in the body, reduces the pipeline and reveal the risk.
Description
Technical Field
The utility model relates to the technical field of battery pack cooling systems, in particular to a joint pipe structure and a battery pack inner cooling plate assembly.
Background
The cooling system in the battery pack of the new energy automobile generally adopts a joint pipe to realize the communication between the cold plates, wherein a tubular opponent is arranged on the cold plate in the battery pack, and annular bulges are arranged on the outer wall of the opponent.
When the joint pipe is used for realizing the communication between two adjacent cold plates, the opponent pieces on the two adjacent cold plates are required to be respectively connected with the joint pipe in an inserting way. Specifically, the end of the opponent piece far away from the cold plate needs to pass through the end of the joint pipe and then be inserted into the joint pipe, and at the moment, the protrusions on the opponent piece are in interference fit between the opponent piece and the joint pipe and are used for sealing the opponent piece and the joint pipe.
However, the joint pipe of the cold plate in the existing battery pack is usually of a double-layer structure, the outer layer of the joint pipe is a hard adhesive layer, the inner layer of the joint pipe is a soft adhesive layer, the surface friction coefficient of the soft adhesive layer is higher, the coaxiality between two opposite parts in the joint pipe can be greatly influenced, the assembly fault tolerance of the joint pipe is low, and the risk of pipeline leakage exists.
Disclosure of Invention
The utility model aims to provide a joint pipe structure and a battery pack inner cold plate assembly, which are used for relieving the technical problems that in the prior art, the inner layer of a battery pack inner cold plate joint pipe is a soft adhesive layer, the surface friction coefficient of the soft adhesive layer is higher, the coaxiality between two opposite parts in the joint pipe is greatly influenced, the assembly fault tolerance rate of the joint pipe is low, and the risk of pipeline leakage exists.
In a first aspect, the present utility model provides a joint tube structure comprising a tube body;
the pipe body comprises a plurality of laminated adhesive layers, wherein one adhesive layer positioned at the innermost side of the pipe body is a soft adhesive layer, and at least one adhesive layer among the other adhesive layers is a hard adhesive layer;
an annular groove is formed between the outer wall of the pipe body and the soft adhesive layer, and the groove extends along the circumferential direction of the pipe body.
In an alternative embodiment, the plurality of grooves are distributed at intervals along the axial direction of the pipe body.
In an alternative embodiment, the number of the grooves is two, and the two grooves are symmetrically distributed by taking the radial central axis of the pipe body as a symmetrical axis.
In an alternative embodiment, the soft adhesive layer comprises an inner side and an outer side, and the inner side of the soft adhesive layer is the inner wall of the pipe body;
the bottom of the groove is flush with the outer side of the soft adhesive layer.
In an alternative embodiment, the inner wall of the groove is covered with a protective layer, and the protective layer is made of flexible materials.
In an optional embodiment, the material of the protective layer is the same as that of the soft adhesive layer, and the protective layer is fixedly connected with the soft adhesive layer.
In an alternative embodiment, the inner wall of the tube body is provided with a sealing convex ring extending along the circumferential direction of the tube body, and two sides of the sealing convex ring are respectively abutted with two external opponent pieces inserted into the tube body.
In an alternative embodiment, the sealing collar is provided in the middle of the tube body.
In an alternative embodiment, among the plurality of adhesive layers, the adhesive layer located at the outermost side of the pipe body is a hard adhesive layer.
In a second aspect, the present utility model provides a cold plate assembly in a battery pack, comprising the joint pipe structure according to any one of the preceding embodiments.
The joint pipe structure provided by the utility model comprises a pipe body; the pipe body comprises a plurality of laminated adhesive layers, wherein the adhesive layer positioned at the innermost side of the pipe body is a soft adhesive layer, and at least one adhesive layer among the rest adhesive layers is a hard adhesive layer; an annular groove is formed between the outer wall of the pipe body and the soft adhesive layer, and extends along the circumferential direction of the pipe body. The joint pipe structure provided by the utility model is used for realizing the communication between two adjacent cold plates in the battery pack, and specifically, each cold plate is provided with a tubular opponent piece which is used for being inserted into the pipe body in the joint pipe structure. When the two ends of the pipe body are respectively sleeved outside the opponent pieces on the two adjacent cold plates, the two adjacent cold plates can be communicated. In the process of inserting the opponent in the pipe body, the adhesive layer at the innermost side of the pipe body is a soft adhesive layer, and the surface friction coefficient of the soft adhesive layer is higher, so that the soft adhesive layer is easy to deform under the reaction force of the opponent and hinders the opponent on the cold plate in the moving process of the opponent, but because the annular groove is further formed between the outer wall of the pipe body and the soft adhesive layer, the opponent can pass through the groove after being inserted in place, the deformation of the opponent can be absorbed by the groove to restore to the original position, at the moment, the groove can absorb the tolerance generated in the installation process of the pipe body and the opponent, and after the opponent sleeved at the two ends of the pipe body is respectively moved in place, the two opponent cannot be influenced by the deformed soft adhesive layer to be difficult to ensure the coaxiality, so that the assembly accuracy can be improved, and the leakage of a pipeline is prevented. It should be noted that, the installation space in the battery pack is limited, and the space between the opponent parts on two adjacent cold plates in the battery pack is also limited, and when the pipe body is communicated between the opponent parts on two adjacent cold plates, the pipe body can be limited by the space size limitation between the opponent parts, so that the installation stability of the pipe body between the two adjacent opponent parts is ensured.
Compared with the prior art, the joint pipe structure provided by the utility model has the advantages that the annular groove is formed between the outer wall of the pipe body and the soft adhesive layer, so that a deformation space can be provided for the pipe body when two adjacent opponent pieces are communicated, the groove can absorb the tolerance generated in the installation process, the assembly fault tolerance is improved, the coaxiality between the two opponent pieces in the pipe body can be effectively ensured, and the leakage risk of a pipeline is reduced.
The cold plate component in the battery pack provided by the utility model comprises the joint pipe structure, so that the cold plate component in the battery pack provided by the utility model has the same beneficial effects as the joint pipe structure.
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 schematic structural view of a hand piece and joint tube structure according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of the opponent piece and connector tube structure of FIG. 1;
FIG. 3 is an exploded view of a hand piece and connector tube structure provided by an embodiment of the present utility model;
fig. 4 is a cross-sectional view of a joint pipe structure according to an embodiment of the present utility model.
Icon: 1-a tube body; 10-a soft adhesive layer; 11-a hard adhesive layer; 2-grooves; 3-opponent; 4-sealing convex ring.
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.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Examples:
as shown in fig. 1 to 4, the joint pipe structure provided in this embodiment includes a pipe body 1; the pipe body 1 comprises a plurality of laminated adhesive layers, wherein the adhesive layer positioned at the innermost side of the pipe body 1 is a soft adhesive layer 10, and at least one adhesive layer among the other adhesive layers is a hard adhesive layer 11; an annular groove 2 is formed between the outer wall of the pipe body 1 and the soft rubber layer 10, and the groove 2 extends along the circumferential direction of the pipe body 1.
The joint pipe structure provided by the embodiment is used for realizing the communication between two adjacent cold plates in the battery pack, and specifically, each cold plate is provided with a tubular opponent piece 3, and the opponent piece 3 is used for being inserted into the pipe body 1 in the joint pipe structure. As shown in fig. 1, 2 and 3, when two ends of the pipe body 1 are respectively sleeved outside the opponent pieces 3 on two adjacent cold plates, the communication between the two adjacent cold plates can be realized.
In the process of inserting the opponent piece 3 into the pipe body 1, the adhesive layer at the innermost side of the pipe body 1 is the soft adhesive layer 10, and the surface friction coefficient of the soft adhesive layer 10 is higher, so that the soft adhesive layer 10 is easy to deform under the reaction force of the opponent piece 3 and block the opponent piece 3 on a cold plate in the moving process of the opponent piece 3, but an annular groove 2 is formed between the outer wall of the pipe body 1 and the soft adhesive layer 10, and the opponent piece 3 can pass through the groove 2 after being inserted into place, so that the deformation of the opponent piece 3 can be absorbed by the groove 2 to restore to the original position, at the moment, the groove 2 can absorb the tolerance generated in the installation process of the pipe body 1 and the opponent piece 3, and after the opponent pieces 3 sleeved at two ends of the pipe body 1 are respectively moved into place, the two pairs of hand pieces 3 cannot be influenced by the deformed soft adhesive layer 10 to be difficult to ensure coaxiality, and the assembly accuracy can be improved, and the leakage of a pipeline can be prevented.
It should be noted that, the installation space in the battery pack is limited, and the space between the opponent pieces 3 on two adjacent cold plates in the battery pack is limited, and when the pipe body 1 is communicated between the opponent pieces 3 on two adjacent cold plates, the pipe body 1 can be limited by limiting the space size between the opponent pieces 3, so that the installation stability of the pipe body 1 between the two adjacent opponent pieces 3 is ensured.
Compared with the prior art, the joint pipe structure provided by the embodiment can provide deformation space for the pipe body 1 when two adjacent opponent pieces 3 are communicated by arranging the annular groove 2 between the outer wall of the pipe body 1 and the soft adhesive layer 10, and the groove 2 can absorb tolerance generated in the installation process, so that the assembly fault tolerance is improved, the coaxiality between the two opponent pieces 3 in the pipe body 1 can be effectively ensured, and the pipeline leakage risk is reduced.
In this embodiment, among the plurality of adhesive layers, the adhesive layer located at the outermost side of the pipe body 1 is the hard adhesive layer 11.
The hard adhesive layer 11 can ensure that the pipe body 1 has high strength, thereby ensuring the installation stability of the pipe body 1 between two adjacent cold plates.
It should be noted that, in the pipe body 1 provided in this embodiment, the soft adhesive layer 10 and the hard adhesive layer 11 are relatively speaking, and specific materials of the soft adhesive layer 10 and the hard adhesive layer 11 may be selected according to actual requirements.
The pipe body 1 may only include two adhesive layers, at this time, the hard adhesive layer 11 covers the outer side of the soft adhesive layer 10, and the groove 2 may penetrate through the hard adhesive layer 11.
As shown in fig. 1 to 4, the grooves 2 are plural, and the plural grooves 2 are distributed at intervals along the axial direction of the pipe body 1.
The plurality of grooves 2 distributed at intervals along the axial direction of the pipe body 1 can further enhance the assembly tolerance generated in the process of installing the pipe body 1 and the opposite hand piece 3, so that the assembly fault tolerance is further improved.
Further, as shown in fig. 4, there are two grooves 2, and the two grooves 2 are symmetrically distributed with the radial center axis of the pipe body 1 as a symmetry axis.
In practical application, the opponent pieces 3 on the cold plates are usually required to be inserted into the radial central shaft of the pipe body 1, so that when the two grooves 2 are symmetrically distributed by taking the radial central shaft of the pipe body 1 as a symmetrical axis, the opponent pieces 3 on two adjacent cold plates can pass through one groove 2 in the process of being inserted into the pipe body 1 respectively, and at the moment, the two grooves 2 can absorb assembly tolerances generated in the mounting process of the two opponent pieces 3 respectively, thereby effectively ensuring the coaxiality of the two opponent pieces 3 after being mounted in place and reducing the assembly errors.
In this embodiment, the soft adhesive layer 10 includes an inner side and an outer side, and the inner side of the soft adhesive layer 10 is the inner wall of the pipe body 1; the bottom of the groove 2 is flush with the outer side of the soft adhesive layer 10.
When the groove bottom of the groove 2 is level with the outer side of the soft adhesive layer 10, the groove 2 can be guaranteed to provide sufficient abdication space for the soft adhesive layer 10, so that assembly tolerance generated in the installation process between the pipe fitting 1 and the opponent piece 3 is better absorbed, and the soft adhesive layer 10 is effectively prevented from continuously deforming, so that coaxiality of the opponent piece 3 is difficult to ensure.
As shown in fig. 4, the inner wall of the groove 2 is covered with a protective layer, and the protective layer is made of flexible material.
The protective layer made of flexible material can ensure the strength of the tube body 1 at the groove 2 without affecting the absorption assembly tolerance.
Wherein the flexible material may be soft plastic or rubber.
In this embodiment, the material of the protection layer is preferably the same as that of the soft adhesive layer 10, and the protection layer is fixedly connected with the soft adhesive layer 10.
When the material of the protective layer is the same as that of the soft adhesive layer 10, the protective layer and the soft adhesive layer 10 can be integrally injection molded.
As shown in fig. 4, the inner wall of the pipe body 1 is provided with a sealing convex ring 4 extending along the circumferential direction of the pipe body, and two sides of the sealing convex ring 4 are respectively abutted against two external opponent pieces 3 inserted in the pipe body 1.
After the external opposite hand pieces 3 on the two adjacent cold plates respectively penetrate through the two ends of the pipe body 1 and are inserted into the pipe body 1, the end faces of the two external opposite hand pieces 3 are respectively abutted against the sealing convex rings 4, and at the moment, the sealing convex rings 4 play a sealing role, so that medium in the pipe body 1 can be effectively prevented from seeping out from a gap between the opposite hand pieces 3 and the pipe body 1.
It should be noted that, the sealing convex ring 4 not only can play a role in sealing, but also can play a role in blocking the external opponent piece 3, when the external opponent piece 3 is abutted against the sealing convex ring 4, the external opponent piece 3 can be blocked by the sealing convex ring 4 and cannot move continuously, and at this time, the external opponent piece 3 is installed in place.
Since the sealing convex ring 4 can block the external opponent 3, in order to ensure that the two external opponent 3 inserted in the pipe body 1 can be absorbed with tolerance in the assembly process, at least one groove 2 is required to be arranged between each end of the pipe body 1 and the sealing convex ring 4.
Further, the sealing convex ring 4 may be disposed in the middle of the pipe body 1, and specifically, the sealing convex ring 4 is disposed at a radial center axis of the pipe body 1.
At this time, the number of the grooves 2 can be two, and the two grooves 2 are symmetrically distributed on two sides of the sealing convex ring 4 by taking the radial center of the pipe body 1 as a symmetrical axis.
The material of the sealing convex ring 4 is the same as that of the soft adhesive layer 10, and at this time, the sealing convex ring 4 may be formed by protruding the inner wall of the soft adhesive layer 10 toward the inside of the pipe body 1.
For ease of processing, the multiple glue layers of the tube 1 may all protrude towards the interior of the tube 1 to form a sealing collar 4.
Further, in this embodiment, the radial section of the sealing convex ring 4 is preferably rectangular or square, and at this time, the sealing convex ring 4 may be stably abutted against the end surface of the external counter part 3, so as to effectively improve the sealing effect of the sealing convex ring 4.
The embodiment also provides a battery pack inner cooling plate assembly, which comprises the joint pipe structure, so that the battery pack inner cooling plate assembly and the joint pipe structure provided by the embodiment can solve the same technical problems, achieve the same technical effects and are not repeated herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model 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 scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. A joint pipe structure, characterized by comprising a pipe body (1);
the pipe body (1) comprises a plurality of laminated adhesive layers, wherein one adhesive layer positioned at the innermost side of the pipe body (1) is a soft adhesive layer (10), and at least one adhesive layer among the other adhesive layers is a hard adhesive layer (11);
an annular groove (2) is formed between the outer wall of the pipe body (1) and the soft rubber layer (10), and the groove (2) extends along the circumferential direction of the pipe body (1).
2. A joint pipe structure according to claim 1, characterized in that the number of grooves (2) is plural, and that the plural grooves (2) are distributed at intervals in the axial direction of the pipe body (1).
3. Joint pipe structure according to claim 2, characterized in that the number of grooves (2) is two, the two grooves (2) being symmetrically distributed with the radial central axis of the pipe body (1) as symmetry axis.
4. Joint pipe structure according to claim 1, characterized in that the soft glue layer (10) comprises an inner side and an outer side, the inner side of the soft glue layer (10) being the inner wall of the pipe body (1);
the groove bottom of the groove (2) is flush with the outer side of the soft rubber layer (10).
5. A joint pipe structure according to claim 4, characterized in that the inner wall of the groove (2) is covered with a protective layer, the protective layer being of flexible material.
6. The joint pipe structure according to claim 5, wherein the material of the protective layer is the same as that of the soft adhesive layer (10), and the protective layer is fixedly connected with the soft adhesive layer (10).
7. A joint pipe structure according to any one of claims 1-6, characterized in that the inner wall of the pipe body (1) is provided with a sealing convex ring (4) extending along the circumferential direction of the pipe body, and two sides of the sealing convex ring (4) are respectively abutted against two external opponent pieces (3) inserted into the pipe body (1).
8. Joint pipe structure according to claim 7, characterized in that the sealing collar (4) is provided in the middle of the pipe body (1).
9. A joint pipe structure according to any one of claims 1-6, characterized in that the glue layer located outermost of the pipe body (1) among the plurality of glue layers is a hard glue layer (11).
10. A cold plate assembly in a battery pack comprising the tab tube structure of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321200924.7U CN219739063U (en) | 2023-05-17 | 2023-05-17 | Joint pipe structure and battery pack inner cooling plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321200924.7U CN219739063U (en) | 2023-05-17 | 2023-05-17 | Joint pipe structure and battery pack inner cooling plate assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219739063U true CN219739063U (en) | 2023-09-22 |
Family
ID=88050905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321200924.7U Active CN219739063U (en) | 2023-05-17 | 2023-05-17 | Joint pipe structure and battery pack inner cooling plate assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219739063U (en) |
-
2023
- 2023-05-17 CN CN202321200924.7U patent/CN219739063U/en active Active
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