CN213366692U - Battery pack box structure and battery pack - Google Patents
Battery pack box structure and battery pack Download PDFInfo
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- CN213366692U CN213366692U CN202021869549.1U CN202021869549U CN213366692U CN 213366692 U CN213366692 U CN 213366692U CN 202021869549 U CN202021869549 U CN 202021869549U CN 213366692 U CN213366692 U CN 213366692U
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- battery pack
- base
- connecting column
- shell
- case structure
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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 a power battery field provides a battery package box structure and battery package, and battery package box structure includes casing, a plurality of first roof beam, a plurality of hangers and sealing member. The first beam is arranged in the shell and extends along a first direction. The hanger comprises a base and a connecting column, one end of the base is detachably connected with the first beam, the connecting column extends from the other end of the base towards the direction deviating from the base, the connecting column stretches out of the shell to be used for being connected with a frame, the sealing element is connected with one end of the connecting column deviating from the base, and the sealing element and the base are limited to form a containing cavity used for containing the connecting column. The utility model provides a battery pack box structure, which increases the connection strength between the battery pack and the frame by connecting the hanging part with the first beam, and can be distributed at different positions in the battery box; because the spliced pole stretches out the casing and is connected with the frame, the chamber that holds that is used for holding the spliced pole is injectd with the base to the sealing member for behind spliced pole and the frame connection, overall structure is compact.
Description
Technical Field
The utility model belongs to the technical field of power battery, more specifically say, relate to a battery package box structure and battery package.
Background
With the development of new energy technology, the endurance demand of people on new energy automobiles is higher and higher, due to the limitation of the current lithium battery technology, the increase of endurance is more dependent on the increase of the number of batteries, but the size and the weight of a battery box body are also larger, and in order to ensure that the battery box body is reliably mounted on an automobile body, the strength of the battery box body structure is required to be higher, and the connection points of a battery pack and the automobile are increased.
The hoisting point of prior art all sets up on the box frame, through the hoisting point that runs through the box in order to realize being connected of battery package and frame, but this kind of fixed mode is more single, need set up a plurality of hoisting points at the frame to intensity and quantity through increasing the inside roof beam increase the joint strength of battery package and whole car, increased the weight of battery package box undoubtedly, and increased the degree of difficulty of design and the complexity of production.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a battery package box structure and battery package to the hanging point of solving among the current battery package box structure has increased the weight of battery package to a certain extent and has increased the degree of difficulty of design and the technical problem of the complexity of production.
In order to achieve the above object, the utility model adopts the following technical scheme: provided is a battery pack case structure including:
a housing;
the first beams are arranged in the shell, extend along a first direction and are arranged in parallel at intervals in a second direction forming a preset angle with the first direction;
the hanging pieces comprise bases and connecting columns, one end of each base is detachably connected with the first beam, the connecting columns extend from the other end of each base towards the direction departing from the corresponding base, and the connecting columns extend out of the shell and are used for being connected with the frame; and
the sealing member is connected with the one end that deviates from the base of spliced pole, and the sealing member is injectd with the base and is held the chamber, holds the chamber and is used for holding and establishes the spliced pole.
By adopting the technical scheme, on one hand, compared with the way that the hanging parts are arranged at two ends of the shell, the hanging parts are arranged in the shell and are connected with the main bearing part of the box body structure, such as the first beam, so that a cantilever is short, the connection strength of the battery pack and the frame is increased, and the hanging parts are detachably connected with the first beam, so that the battery pack can be distributed and arranged at different positions in the battery box body, the installation mode is simple, the requirement on space is low, the battery pack can adapt to different battery pack structures, and the problems that the weight of the battery pack is increased and the design difficulty is increased due to the fact that hanging points are independently arranged on the shell are solved; on the other hand, because the spliced pole stretches out the casing and is connected with the frame, the sealing member is injectd with the base and is held the chamber, and the spliced pole is held and is located and should hold the intracavity for the spliced pole is connected the back with the frame, and overall structure is compact.
Optionally, a through hole is formed in the shell, the connecting column penetrates through the through hole, and the sealing element is used for shielding the through hole.
Through adopting above-mentioned technical scheme, because the spliced pole need pass the through-hole on the casing, can influence the sealing performance of whole casing to a certain extent, thereby shelter from the through-hole with the sealing member and can seal the through-hole, avoid dust or moisture to get into in the casing through the through-hole on the casing and influence the normal operating of battery package, and then guaranteed the whole sealing performance of battery package.
Optionally, the connecting column is sleeve-shaped, an external thread is arranged on the outer peripheral surface of the connecting column, the sealing element is a sealing nut, the sealing element is screwed with the external thread of the connecting column, and an internal thread connected with the frame is arranged on the inner peripheral surface of the connecting column.
Through adopting above-mentioned technical scheme, adopt gland nut and the external screw thread of spliced pole to connect soon, simple structure, convenient to detach to further set up the internal thread at the inner peripheral surface of spliced pole, this internal thread connects soon with the bolt on the frame, thereby is convenient for be connected this hanger and frame.
Optionally, the seal comprises:
the screwing part is screwed with the connecting column; and
and the abutting part is formed by radially extending one end of the rotary connecting part close to the base and abuts against the shell to seal.
Through adopting above-mentioned technical scheme, the butt portion and the casing butt of sealing member are in order to seal the through-hole, avoid dust or moisture to get into in the casing through the through-hole on the casing and influence the normal operating of battery package, and then guaranteed the whole sealing performance of battery package.
Optionally, the end face of the connecting column facing away from the base is flush with the end face of the seal facing away from the base.
Through adopting above-mentioned technical scheme, with the terminal surface that deviates from the base of spliced pole and the terminal surface parallel and level that deviates from the base of sealing member for this spliced pole and connected to the frame back, the structure is compacter, avoids spliced pole overlength to influence stability and joint strength of connecting.
Optionally, the battery pack case structure further includes:
and the sealing ring is sleeved on the connecting column and is positioned in the accommodating cavity between the base and the shell.
Through adopting above-mentioned technical scheme, through set up the sealing washer in the holding intracavity between sealing member and casing, further guaranteed the sealing performance between hanger and the casing.
Optionally, the mounting groove has been seted up to the one end that deviates from first roof beam of base, and the sealing washer sets up in the mounting groove.
Through adopting above-mentioned technical scheme, through setting up the mounting groove, this mounting groove has played the location installation effect for the sealing washer can be accurately be fixed in the relevant position of base fast, avoids the sealing washer skew.
Optionally, the base comprises:
the first connecting part is connected with the first beam;
the second connecting part extends from the surface of the first connecting part to the direction departing from the first connecting part; and
the bellying extends from the surface of second connecting portion towards the direction that deviates from the second connecting portion, and the bellying is connected with the spliced pole, has seted up the mounting groove on the bellying.
By adopting the scheme, the sealing ring can be compressed and limited by arranging the lug boss and arranging the mounting groove on the lug boss.
Optionally, the battery pack box structure further comprises a plurality of second beams, the second beams are arranged in the shell, extend along the second direction, are arranged at intervals in the first direction, are inserted into the first beams, and form accommodating cavities.
Through adopting above-mentioned technical scheme, first roof beam and second roof beam form the holding chamber, are convenient for hold battery module.
The application also provides a battery pack, which comprises the battery pack box body structure, and the battery pack further comprises a battery module arranged in the shell.
Through adopting above-mentioned technical scheme, this battery package is through adopting foretell battery package box structure, is connected the first roof beam in pendant and the casing, has increased the joint strength of battery package and vehicle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic perspective view of a battery pack according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an explosion structure of a battery pack according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a hanger, a sealing member and a sealing ring according to an embodiment of the present invention;
fig. 4 is an exploded schematic view of a hanger, a sealing member and a sealing ring according to an embodiment of the present invention;
fig. 5 is a schematic top view of a battery pack according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a partially enlarged view of portion A of FIG. 6;
FIG. 8 is a schematic cross-sectional view taken along line B-B of FIG. 5;
fig. 9 is a partially enlarged structural view of a portion B in fig. 8.
Wherein, in the figures, the respective reference numerals:
1-a shell; 11-a base plate; 12-a frame; 13-box cover; 130-a through hole; 20-an accommodating cavity; 21-a first beam; 211-a first connection plate; 212-a second connecting plate; 213-connecting ribs; 22-a second beam; 3-hanging parts; 31-a base; 310-a mounting groove; 311-a first connection; 312 — a second connection; 313-a boss; 314-mounting holes; 32-connecting column; 4-a seal; 41-a swivel part; 42-an abutment; 5-sealing ring; 6-a battery module; l1-first direction; l2-second direction.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "fixedly disposed" or "disposed" on another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. 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. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1 to fig. 3, a structure of a battery pack case according to an embodiment of the present invention will be described. The battery pack case structure includes a case 1, a plurality of first beams 21, a plurality of hangers 3, and a sealing member 4.
Referring to fig. 2 and 4, the first beam 21 is disposed on the housing 1, and the first beam 21 extends along the first direction and is disposed in parallel and at an interval with a second direction L2 forming a predetermined angle with the first direction L1, where the predetermined angle may be 90 degrees, and of course, other angles are also possible. It should be noted that the first direction may be the L1 direction in fig. 2, or may be the L2 direction perpendicular to the L1, or other directions. The hanger 3 comprises a base 31 and a connecting column 32, one end of the base 31 is detachably connected with the first beam 21, the connecting column 32 extends from the other end of the base 31 towards the direction departing from the base 31, and the connecting column 32 extends out of the shell 1 for being connected with a frame. The sealing element 4 is connected with one end of the connecting column 32, which is far away from the base 31, and the sealing element 4 and the base 31 define a containing cavity, which is used for containing the connecting column 32, namely, the whole connecting column 32 is located in the containing cavity.
Compared with the prior art, the battery pack box structure provided by the embodiment of the utility model, on one hand, compared with the way that the hanging parts 3 are arranged at the two ends of the shell 1, the hanging parts 3 are arranged in the shell 1 and are connected with the main bearing parts of the box structure, such as the first beam 21, so that the cantilever of the battery pack is shorter, the connection strength between the battery pack and the frame is increased, and the hanging parts 3 are detachably connected with the first beam 21, so that different positions in the battery pack can be distributed and arranged, the installation mode is simple, the space requirement is smaller, different battery pack structures can be adapted, and the problems that the weight and the design difficulty of the battery pack are increased due to the fact that hanging points are independently arranged on the shell 1 are reduced; on the other hand, because the connecting column 32 extends out of the shell 1 to be connected with the frame, the sealing element 4 and the base 31 define a containing cavity, and the connecting column 32 is contained in the containing cavity, so that after the connecting column 32 is connected with the frame, the whole structure is compact.
In an embodiment of the present invention, referring further to fig. 1, fig. 2 and fig. 4, a through hole 130 is opened on the housing 1, and the connection post 32 passes through the through hole 130 for connecting with the frame. The sealability of the housing 1 is deteriorated due to the connection post 32 passing through the through-hole 130. Wherein, the sealing member 4 is connected with one end of the connecting column 32 departing from the base 31 and is used for shielding the through hole 130 on the shell 1. The normal operation of the battery pack is prevented from being influenced by the fact that dust or moisture enters the shell 1 through the through holes 130 in the shell 1, and the overall sealing performance of the battery pack is guaranteed.
Specifically, in this embodiment, further referring to fig. 5 to 7, the connection column 32 is in a sleeve shape, the outer peripheral surface of the connection column 32 is provided with an external thread, the sealing element 4 is a sealing nut, and the sealing element 4 is screwed with the external thread of the connection column 32, so that the sealing element 4 and the connection column 32 are conveniently disassembled, and the connection is simple. Further, an internal thread connected to the frame is provided on an inner peripheral surface of the connection post 32, and the connection post 32 and the frame are connected together by a bolt passing through the internal thread.
In the present embodiment, in order to further secure the sealing performance of the sealing member 4. The seal 4 includes a screwed portion 41 and an abutting portion 42. Wherein, the screwing part 41 is screwed with the external thread of the connecting column 32, so that the screwing part 41 is connected with the connecting column 32. The abutting portion 42 is formed by extending the one end of the screw portion 41 close to the base 31 in the radial direction, and the abutting portion 42 is annular, and the annular abutting portion 42 abuts against the housing 1 to seal the through hole 130. The outer diameter of the annular abutment 42 is larger than the bore diameter of the through-hole 130 so that the annular abutment can seal the through-hole 130. Therefore, the influence of dust or moisture on the normal operation of the battery pack caused by the fact that the dust or the moisture enters the shell 1 through the through hole 130 in the shell 1 can be avoided, and the overall sealing performance of the battery pack is further ensured.
In an embodiment of the utility model, further refer to fig. 3 and 4, the terminal surface that deviates from base 31 of spliced pole 32 and the terminal surface parallel and level that deviates from base 31 of sealing member 4 to make this spliced pole 32 and connected to the frame after, the frame can with the terminal surface parallel and level that deviates from base 31 of sealing member 4, make holistic structure compacter, avoid spliced pole 32 overlength to influence the stability and the joint strength of connecting. Of course, in other embodiments, the end face of the connecting stub 32 facing away from the base 31 can also be lower than the end face of the seal 4 facing away from the base 31.
In an embodiment of the present invention, further referring to fig. 4, 8 and 9, the battery pack case structure further includes a sealing ring 5. Wherein, the sealing ring 5 is sleeved on the connecting column 32 and is located in the accommodating cavity between the base 31 and the housing 1. The sealing ring 5 is used in combination with the sealing member 4 in the above embodiment to further prevent dust or moisture from entering the casing 1 through the through hole 130 in the casing 1 to affect the normal operation of the battery pack, thereby ensuring the overall sealing performance of the battery pack.
In this embodiment, referring to fig. 4, an installation groove 310 is opened at an end of the base 31 away from the first beam 21, the installation groove 310 is a sinking groove annularly disposed around the connection column 32, a shape of the installation groove 310 matches a shape of the sealing ring 5, and the sealing ring 5 is sleeved on the connection column 32 and thus disposed in the installation groove 310, that is, the installation groove 310 is used for bearing the sealing ring 5. Through setting up mounting groove 310 for sealing washer 5 and spliced pole 32 coaxial setting have played the effect of location installation, make sealing washer 5 can prepare to be fixed in the relevant position of base 31 fast, avoid sealing washer 5 installation dislocation and influence the sealing performance of this casing 1.
In an embodiment of the present invention, further referring to fig. 4, the base 31 includes a first connection portion 311, a second connection portion 312, and a projection portion 313. The first connection portion 311 is connected to the first beam 21, the second connection portion 312 extends from the surface of the first connection portion 311 in a direction away from the first connection portion 311, the protrusion portion 313 extends from the surface of the second connection portion 312 in a direction away from the second connection portion 312, the protrusion portion 313 is connected to the connection column 32, and the protrusion portion 313 is provided in the mounting groove 310.
Specifically, the first connection portion 311 is a strip-shaped structure, the two ends of the first connection portion 311 are opened with mounting holes 314, and bolts pass through the mounting holes 314 so that the first connection portion 311 is mounted on the first beam 21 and/or the second beam 22. The second connection portion 312 is a column, the protrusion portion 313 is a cylinder, and a smooth transition groove is formed between the second connection portion 312 and the protrusion portion 313.
In an embodiment of the present invention, further referring to fig. 2, the battery pack case further includes a plurality of second beams 22, the second beams 22 are disposed in the housing 1 and extend along a second direction L2 which is a predetermined angle with the first direction L1, and are disposed at an interval of the first direction L1, and the second beams 22 are inserted into the first beams 21 to form the accommodating cavity 20. Specifically, the preset angle may be a direction perpendicular to the first direction L1.
Referring to fig. 2 and 9, the first beam 21 and the second beam 22 are hollow to form a cavity. It should be noted that each of the first beam 21 and the second beam 22 includes a first connecting plate 211, a second connecting plate 212, and a connecting rib 213 connecting between the first connecting plate 211 and the second connecting plate 212. Providing the first and second beams 21 and 22 as hollow structures not only effectively reduces the weight of the first and second beams 21 and 22, but also reduces the overall weight of the entire battery pack case structure. The suspension element 3 is fixedly connected to the first beam 21 and/or the second beam 22.
Specifically, the housing 1 includes a bottom plate 11, a frame 12, and a cover 13 covering the frame 12. The frame 12 is disposed around the bottom plate 11, the first beam 21 is fixedly connected to the bottom plate 11 along a first direction L1, and the second beam 22 is inserted into the first beam 21 along a second direction L2.
The utility model also provides a battery package, specifically refer to figure 1 and figure 2, including foretell battery package box structure, this battery package is still including setting up the battery module 6 in the holding chamber 20 in casing 1.
By adopting the battery pack box structure in the above embodiment, the hanger 3 is connected with the first beam 21 in the housing 1, thereby increasing the connection strength between the battery pack and the vehicle.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A battery pack case structure, comprising:
a housing;
the first beams are arranged in the shell, extend along a first direction and are arranged in parallel at intervals in a second direction forming a preset angle with the first direction;
the suspension pieces comprise bases and connecting columns, one ends of the bases are detachably connected with the first beams, the connecting columns extend from the other ends of the bases to the direction away from the bases, and the connecting columns extend out of the shell and are used for being connected with the frame; and
the sealing member, with the spliced pole deviates from the one end of base is connected, the sealing member with the base is injectd and is held the chamber, it is used for holding the chamber and establishes the spliced pole.
2. The battery pack case structure of claim 1, wherein: the shell is provided with a through hole, the connecting column penetrates through the through hole, and the sealing element is used for shielding the through hole.
3. The battery pack case structure of claim 2, wherein: the connecting column is in a sleeve shape, an external thread is arranged on the outer peripheral surface of the connecting column, the sealing element is a sealing nut and is in screwed connection with the external thread of the connecting column, and an internal thread connected with the frame is arranged on the inner peripheral surface of the connecting column.
4. The battery pack case structure of claim 3, wherein: the seal includes:
the screwing part is screwed with the connecting column; and
the abutting part is formed by radially extending one end, close to the base, of the rotary connecting part, and the abutting part abuts against the shell to seal the through hole.
5. The battery pack case structure of claim 3, wherein: the spliced pole deviate from the terminal surface of base with the sealing member deviate from the terminal surface parallel and level of base.
6. The battery pack case structure according to any one of claims 1 to 5, wherein: the battery pack box structure further comprises:
and the sealing ring is sleeved on the connecting column and is positioned in the accommodating cavity between the base and the shell.
7. The battery pack case structure of claim 6, wherein: the base deviates from the mounting groove has been seted up to the one end of first roof beam, the sealing washer set up in the mounting groove.
8. The battery pack case structure of claim 7, wherein: the base includes:
a first connection connected to the first beam;
the second connecting part extends from the surface of the first connecting part to the direction departing from the first connecting part; and
the bulge, certainly the surface of second connecting portion face away from the direction of second connecting portion extends, the bulge with the spliced pole is connected, seted up on the bulge the mounting groove.
9. The battery pack case structure of claim 6, wherein: the battery pack box structure further comprises a plurality of second beams, the second beams are arranged in the shell, extend along the second direction, are arranged at intervals in the first direction and are connected with the first beams in an inserting mode, and the first beams and the second beams form accommodating cavities.
10. A battery pack, comprising: the battery pack case structure comprising the battery pack according to any one of claims 1 to 9, the battery pack further comprising a battery module disposed in the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869549.1U CN213366692U (en) | 2020-08-31 | 2020-08-31 | Battery pack box structure and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869549.1U CN213366692U (en) | 2020-08-31 | 2020-08-31 | Battery pack box structure and battery pack |
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| Publication Number | Publication Date |
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| CN213366692U true CN213366692U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021869549.1U Active CN213366692U (en) | 2020-08-31 | 2020-08-31 | Battery pack box structure and battery pack |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471607A (en) * | 2021-07-01 | 2021-10-01 | 广州小鹏汽车科技有限公司 | Battery box body, battery pack and assembly method of battery box body |
| WO2023098710A1 (en) * | 2021-11-30 | 2023-06-08 | 奥动新能源汽车科技有限公司 | Battery pack for electric vehicle and electric vehicle |
-
2020
- 2020-08-31 CN CN202021869549.1U patent/CN213366692U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471607A (en) * | 2021-07-01 | 2021-10-01 | 广州小鹏汽车科技有限公司 | Battery box body, battery pack and assembly method of battery box body |
| WO2023098710A1 (en) * | 2021-11-30 | 2023-06-08 | 奥动新能源汽车科技有限公司 | Battery pack for electric vehicle and electric vehicle |
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