CN215816240U - Upper cover structure, battery pack shell and battery pack - Google Patents
Upper cover structure, battery pack shell and battery pack Download PDFInfo
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- CN215816240U CN215816240U CN202121410482.XU CN202121410482U CN215816240U CN 215816240 U CN215816240 U CN 215816240U CN 202121410482 U CN202121410482 U CN 202121410482U CN 215816240 U CN215816240 U CN 215816240U
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- upper cover
- cover structure
- hole
- liquid collecting
- battery pack
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model is suitable for the technical field of battery pack shells, and provides an upper cover structure which comprises a cover plate and a reinforcing strip, wherein the cover plate comprises a body part, an edge part and a folded part, the edge part is connected to the periphery of the body part, the folded part is connected to one side of the edge part, which is far away from the body part, and forms an included angle of less than 180 degrees with the edge part, and the folded part is provided with a through hole; the reinforcing strip is connected to the edge portion, a liquid collecting groove is formed in one side, facing the edge folding portion, of the reinforcing strip, and the notch of the liquid collecting groove is opposite to the through hole. The residual liquid on the upper cover structure can be collected in the liquid collecting tank, and the through holes are opposite to the liquid collecting tank, so that the residual liquid collected in the liquid collecting tank can be discharged, accumulated liquid between the reinforcing strips and the cover plate is reduced, corrosion of the residual liquid to the upper cover structure is reduced, and the possibility of sealing failure is reduced.
Description
Technical Field
The utility model belongs to the technical field of battery pack shell structures, and particularly relates to an upper cover structure, a battery pack shell and a battery pack.
Background
In the new energy automobile field, traditional battery package casing generally includes drain pan structure and upper cover structure, and upper cover structure lid fits the drain pan structural, and upper cover structure's apron, apron generally form by a flat ram, and the border portion of apron is thinner, for improving apron structural strength, generally can connect the enhancement strip in the border portion of apron. For the realization to the spacing of enhancement strip, the border portion of apron is buckled there is hem portion, and the enhancement strip is installed in the hem inboard, but when whole car wades, easily remains liquid between hem portion and the enhancement strip, accelerates the corruption of apron for the battery package casing has the risk of sealed inefficacy.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an upper cover structure, a battery pack shell and a battery pack, and aims to solve the technical problem that a cover plate is corroded due to the fact that water is easy to accumulate in the upper cover structure in the prior art.
The present invention is achieved as described above, and an upper cover structure includes:
the cover plate comprises a body part, an edge part and a folded edge part, wherein the edge part is connected to the periphery of the body part, the folded edge part is connected to one side of the edge part, which is far away from the body part, and is arranged at an included angle of less than 180 degrees with the edge part, and the folded edge part is provided with a through hole;
strengthen the strip, connect in border portion, strengthen the strip and seted up the collecting tank towards one side of hem portion, the notch and the through-hole of collecting tank are just right mutually.
In an embodiment of the first aspect, the reinforcing strip has at least a first side facing the rim, a second side facing away from the rim, a third side facing the hem, and a fourth side facing away from the hem, and the sump opens at the third side and communicates at least with the first side or the second side.
In an embodiment of the first aspect, the sump extends through the first side and the second side.
In an embodiment of the first aspect, the reinforcing bars are further provided with guide slots communicating with the sump.
In an embodiment of the first aspect, the guide channel communicates with the channel bottom surface and the fourth side surface of the sump, and the channel width of the guide channel is smaller than the channel width of the sump.
In an embodiment of the first aspect, the rim portion has a mounting surface facing the reinforcing bar, and a hole wall surface of the through hole near the rim portion is flush with the mounting surface.
In an embodiment of the first aspect, the hem part is provided with a plurality of the through holes, and the reinforcing strip is provided with a plurality of the liquid collecting grooves, wherein the number of the liquid collecting grooves is the same as that of the through holes.
In an embodiment of the first aspect, the cover plate further includes a reinforcing portion connected to the hem portion facing away from the edge portion, and the reinforcing portion and the hem portion are located on the same plane and correspond to the through hole.
In a second aspect, an embodiment of the present invention provides a battery pack case, including the above upper cover structure.
In a third aspect, embodiments of the present invention provide a battery pack, including the above battery pack case.
Compared with the prior art, the utility model has the technical effects that: this upper cover structure sets up the collecting tank simultaneously on the reinforcing bar through seting up the through-hole in hem portion for structural remaining liquid of upper cover can collect at the collecting tank, and the through-hole is just right mutually with the collecting tank, consequently can discharge the remaining liquid of having collected into in the collecting tank. Like this, when the upper cover structure remained the hydrops, the hydrops can be discharged from the through-hole through the catch basin to reduce the hydrops between enhancement strip and the apron, thereby lightened the corruption of remaining liquid to the upper cover structure, also reduced the sealed possibility that became invalid.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a three-dimensional structure of an upper cover structure according to an embodiment of the present invention;
FIG. 2 is an enlarged partial view of portion A of the overcap structure of FIG. 1;
fig. 3 is a partial sectional view of the upper cover structure of fig. 1.
Description of reference numerals:
100. an upper cover structure; 10. a cover plate; 11. a body portion; 12. a rim portion; 121. accommodating grooves; 13. a hem part; 131. a through hole; 14. a reinforcing part; 20. a reinforcing strip; 201. a liquid collecting tank; 202. a second connection hole; 203. a guide groove.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "length," "width," "bottom," "inner," "outer," and the like, as used herein, are defined as orientations or positional relationships based on the orientation shown in the drawings, and are used for convenience in describing and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
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.
Referring to fig. 1, an embodiment of the present invention provides an upper cover structure 100, which includes a cover plate 10 and a reinforcing bar 20. The upper cover structure 100 is used for covering the bottom case structure, so as to form a cavity together with the bottom case structure for accommodating the object to be accommodated. In this embodiment, the object to be accommodated may be a battery core.
Referring to fig. 2 and 3, the cover plate 10 includes a main body 11, an edge 12, and a hem 13 connected in sequence.
Specifically, the main body 11 may be plate-shaped, or may be formed by stamping a plurality of mounting grooves, and the mounting grooves may be used for mounting other structures or avoiding other structures.
The edge portion 12 is connected to the periphery of the main body 11, and in this case, the edge portion 12 may be a strip extending around the periphery of the main body 11, or may be connected end to form a ring. The edge portion 12 has a mounting surface and a back surface opposite to the mounting surface, wherein the edge portion 12 and the body portion 11 may be located on the same plane. In the present embodiment, the rim portion 12 is formed with an accommodation groove 121 for accommodating the reinforcing strip 20, the accommodation groove 121 extending in the circumferential direction of the body portion 11. The mounting surface is now the bottom surface of the receiving groove 121.
The hem part 13 is connected to the side of the rim part 12 away from the body part 11, i.e. the hem part 13 and the body part 11 are respectively located at two opposite sides of the rim part 12. The hem portion 13 extends in the same direction as the rim portion 12, i.e., the hem portion 13 is circumferentially disposed around the rim portion 12. The hem portion 13 and the edge portion 12 form an included angle smaller than 180 degrees, at this time, the hem portion 13 forms a groove wall of the accommodating groove 121, and the hem portion 13 has an inner side surface facing the accommodating groove 121 and an outer side surface facing away from the accommodating groove 121. The hem 13 may protrude only from the mounting surface of the edge 12, or may protrude from both the mounting surface and the back surface of the edge 12.
The folded portion 13 is provided with a through hole 131, and the through hole 131 penetrates through the inner side surface and the outer side surface, so that the accommodating groove 121 is communicated with the outside. Optionally, the hem portion 13 is provided with a plurality of spaced through holes 131, and the through holes 131 are arranged in sequence along the extending direction of the hem portion 13 to realize the communication between the accommodating groove 121 and the outside in a plurality of areas.
In the present embodiment, the main body 11, the edge 12 and the hem 13 are integrally formed for fast processing. The body portion 11, the edge portion 12 and the flange portion 13 may be formed by a flat plate press or bending during the process. The cover plate 10 may be made of a metal material that is easily bent and deformed.
Referring to fig. 2 and 3, a reinforcing bar 20 is connected to the rim portion 12 to reinforce the structural strength of the rim portion 12. Specifically, the reinforcing strip 20 has at least a first side surface facing the edge portion 12, a second side surface facing away from the edge portion 12, a third side surface facing the flange portion 13, and a fourth side surface facing away from the flange portion 13, and the first side surface is attached to the attachment surface of the edge portion 12. In this embodiment, the reinforcing bar 20 may be a flat long block, the distance between the first side and the second side is a width, the distance between the third side and the fourth side is a thickness, and the thickness of the reinforcing bar 20 is smaller than the width. Strengthen strip 20 and locate holding tank 121 in to with border portion 12 syntropy extension, strengthen strip 20's width can set up to the groove width that is less than holding tank 121, so that strengthen strip 20 the installation in holding tank 121, reduced the installation accuracy simultaneously, be convenient for install fast. A gap may be left between the reinforcing strip 20 and the flange 13 to facilitate the flow of liquid on the upper cover structure 100 in the gap. Wherein the reinforcing strip 20 may be made of stainless steel or other rigid material.
In this embodiment, the reinforcing strip 20 is connected to the rim portion 12 by screws. Specifically, the edge portion 12 is provided with a first connection hole penetrating through the mounting surface and the back surface, the reinforcing bar 20 is provided with a second connection hole 202 penetrating through the first side surface and the second side surface, and a screw can pass through the first connection hole and the second connection hole 202 to screw the reinforcing bar 20 and the edge portion 12, so that the reinforcing bar 20 is restricted from being disengaged from the edge portion 12.
Wherein, border portion 12 can be connected with a plurality of reinforcing strips 20, and a plurality of reinforcing strips 20 are arranged along the extending direction of border portion 12 in proper order. Thus, each reinforcing strip 20 can be set to be shorter, so that the applicability is improved, and the mass production is facilitated.
The reinforcing strip 20 is provided with a liquid collecting groove 201 towards one side of the flange part 13, namely the liquid collecting groove 201 is provided on the third side surface, and the notch of the liquid collecting groove 201 is opposite to the through hole 131. That is, the notch of the sump 201 is located in the opening direction of the through hole 131.
In the upper cover structure 100, the through hole 131 is formed in the folded part 13, and the liquid collecting groove 201 is formed in the reinforcing bar 20, so that the residual liquid on the upper cover structure 100 can be collected in the liquid collecting groove 201, and the through hole 131 is opposite to the liquid collecting groove 201, so that the residual liquid collected in the liquid collecting groove 201 can be discharged. Like this, when upper cover structure 100 remains there is the hydrops, the hydrops can be discharged from through-hole 131 through catch basin 201 to reduce the hydrops between stiffener 20 and the apron 10, thereby lightened the corruption of remaining liquid to upper cover structure 100, also reduced the sealed possibility that loses efficacy.
Referring to fig. 2, when there are a plurality of through holes 131, the reinforcing bar 20 may have a plurality of liquid collecting grooves 201, the number of the liquid collecting grooves 201 is the same as that of the through holes 131, and one liquid collecting groove 201 corresponds to one through hole 131. The multiple liquid collecting grooves 201 can collect and discharge multiple accumulated liquids, and the overall liquid discharge efficiency of the upper cover structure 100 is improved.
In the present embodiment, the depth of the gutter 201 in the opening direction is substantially the same as the width of the through hole 131 in the direction perpendicular to the mounting surface, and the width of the gutter 201 in the extending direction of the reinforcing bar 20 is larger than the width of the through hole 131 in the extending direction of the hem 13, so that more residual liquid is collected.
The sump 201 communicates at least to the first side or the second side. That is, the walls of the sump 201 are perforated at least with the first or second side, which increases the space within the sump 201 to collect more liquid and thereby reduce the amount of liquid remaining in other areas of the lid structure 100.
Optionally, a sump 201 communicates to the first side to collect liquid in the space between reinforcing strip 20 and hem 13 and in the space between reinforcing strip 20 and rim 12.
Optionally, a sump 201 communicates to the second side to collect liquid in the space between the reinforcing strip 20 and the hem 13 and in the space between the reinforcing strip 20 and the base structure.
Referring to fig. 3, in the present embodiment, the liquid collecting tank 201 penetrates the first side surface and the second side surface. Therefore, the liquid collecting tank 201 can collect the liquid in the gap between the reinforcing strip 20 and the folding edge part 13, the liquid in the gap between the reinforcing strip 20 and the edge part 12 and the liquid in the gap between the reinforcing strip 20 and the bottom shell structure, so that the drainage effect is improved, and the processing and the production of the liquid collecting tank 201 are facilitated.
Optionally, the liquid collecting tank 201 is provided with a bell mouth, and the bell mouth is convenient to process and has a flow guiding effect.
Optionally, the reinforcing bar 20 is further provided with a guide groove 203 communicated with the sump 201. The guide groove 203 can guide the remaining liquid into the guide groove 203.
Referring to fig. 2, specifically, the guide groove 203 communicates with the bottom surface and the fourth side surface of the liquid collecting groove 201, so that the liquid in the gap between the fourth side surface and the groove wall of the accommodating groove 121 can enter the liquid collecting groove 201 along the guide groove 203 and then be discharged through the through hole 131. Wherein, the groove width of the guide groove 203 is less than that of the liquid collecting groove 201, so as to prevent the accumulated liquid in the liquid collecting groove 201 from flowing backwards through the guide groove 203.
In this embodiment, the guide groove 203 is also connected to the first side surface and the second side surface. That is, the guide groove 203 may divide the reinforcing bar 20 in two to facilitate the installation of the reinforcing bar 20, and the groove width of the guide groove 203 may be manually adjusted.
When the through-hole 131 is higher than the edge portion 12, the liquid in the liquid collecting tank 201 can be discharged through the through-hole 131 after accumulating a certain height, and for making the accumulated liquid flow out from the through-hole 131 more smoothly, the wall surface of the through-hole 131 close to the edge portion 12 is flush with the mounting surface, namely, the through-hole 131 is arranged at the bottommost part of the hem portion 13 close to the edge portion 12, so that the liquid in the liquid collecting tank 201 can be discharged out of the accommodating groove 121 through the through-hole 131 at any time without accumulation.
As shown in fig. 2 and 3, the cover plate 10 further includes a reinforcing portion 14 connected to the flange portion 13 and facing away from the edge portion 12, and the reinforcing portion 14 and the flange portion 13 are located on the same plane, i.e., a connection line between the reinforcing portion 14 and the flange portion 13 is perpendicular to a connection line between the inner side surface and the outer side surface. Wherein the reinforcing part 14 corresponds to the through hole 131, so that the width of the perforated area is increased, and the structural stability of the flange part 13 is improved. At this time, the length of the reinforcing portion 14 in the extending direction of the flange portion 13 is longer than the length of the through hole 131 in the extending direction of the flange portion 13.
The embodiment of the present invention further provides a battery pack case, which includes a bottom case structure and the upper cover structure 100 mentioned in the above embodiments, where the upper cover structure 100 is the same as the upper cover structure 100 mentioned in the above embodiments, and the functions of the upper cover structure 100 are the same, which are not described herein again. The bottom case structure has a cavity for accommodating the battery core, the cavity has an opening, the upper cover structure 100 covers the opening, and the reinforcing strip 20 of the upper cover structure 100 abuts against the edge of the bottom case structure.
An embodiment of the present invention further provides a battery pack, where the battery pack includes the battery pack case, and the battery pack case has the same structure as the battery pack cases mentioned in the above embodiments, and the functions of the battery pack case are the same, which are not described herein again.
The foregoing is considered as illustrative only of the preferred embodiments of the utility model, and is presented merely for purposes of illustration and description of the principles of the utility model and is not intended to limit the scope of the utility model in any way. Any modifications, equivalents and improvements made within the spirit and principles of the utility model and other embodiments of the utility model without the creative effort of those skilled in the art are included in the protection scope of the utility model based on the explanation here.
Claims (10)
1. An upper cover structure, comprising:
the cover plate comprises a body part, an edge part and a folded edge part, wherein the edge part is connected to the periphery of the body part, the folded edge part is connected to one side of the edge part, which is far away from the body part, and is arranged at an included angle of less than 180 degrees with the edge part, and the folded edge part is provided with a through hole;
the reinforcing strip is connected to the edge portion, a liquid collecting groove is formed in one side, facing the edge folding portion, of the reinforcing strip, and the notch of the liquid collecting groove is opposite to the through hole.
2. The lid structure of claim 1, wherein the reinforcing strip has at least a first side facing the rim, a second side facing away from the rim, a third side facing the hem, and a fourth side facing away from the hem, and wherein the sump opens into the third side and communicates at least with the first side or the second side.
3. The lid structure of claim 2, wherein the sump extends through the first side and the second side.
4. A cover arrangement according to any one of claims 2 to 3, wherein the reinforcing bars are further provided with guide channels communicating with the sump.
5. The upper cover structure of claim 4, wherein the guide groove communicates with a groove bottom surface of the sump and the fourth side surface, and a groove width of the guide groove is smaller than a groove width of the sump.
6. The cover structure according to claim 1, wherein said rim portion has a mounting surface facing said reinforcing strip, and a hole wall surface of said through hole adjacent to said rim portion is flush with said mounting surface.
7. The upper cover structure according to claim 1, wherein the flange portion is provided with a plurality of through holes, and the reinforcing strip is provided with a plurality of liquid collecting grooves, the number of the liquid collecting grooves being the same as the number of the through holes.
8. The upper cover structure according to claim 1, wherein the cover plate further comprises a reinforcement portion connected to the flange portion opposite to the rim portion, the reinforcement portion and the flange portion being located on the same plane and corresponding to the through hole.
9. A battery pack case comprising the upper cover structure according to any one of claims 1 to 8.
10. A battery pack comprising the battery pack case according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121410482.XU CN215816240U (en) | 2021-06-23 | 2021-06-23 | Upper cover structure, battery pack shell and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121410482.XU CN215816240U (en) | 2021-06-23 | 2021-06-23 | Upper cover structure, battery pack shell and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816240U true CN215816240U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121410482.XU Active CN215816240U (en) | 2021-06-23 | 2021-06-23 | Upper cover structure, battery pack shell and battery pack |
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| Country | Link |
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| CN (1) | CN215816240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023165411A1 (en) * | 2022-03-03 | 2023-09-07 | 宁德时代新能源科技股份有限公司 | Battery box body, battery and electrical device |
| CN118412607A (en) * | 2024-06-24 | 2024-07-30 | 浙江晶科储能有限公司 | Battery pack |
-
2021
- 2021-06-23 CN CN202121410482.XU patent/CN215816240U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023165411A1 (en) * | 2022-03-03 | 2023-09-07 | 宁德时代新能源科技股份有限公司 | Battery box body, battery and electrical device |
| CN118412607A (en) * | 2024-06-24 | 2024-07-30 | 浙江晶科储能有限公司 | Battery pack |
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