CN218215523U - Insulation protection structure, battery pack and energy storage battery box - Google Patents
Insulation protection structure, battery pack and energy storage battery box Download PDFInfo
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- CN218215523U CN218215523U CN202222050587.XU CN202222050587U CN218215523U CN 218215523 U CN218215523 U CN 218215523U CN 202222050587 U CN202222050587 U CN 202222050587U CN 218215523 U CN218215523 U CN 218215523U
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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 relates to an insulating protective structure, the battery package, the energy storage battery case, among this insulating protective structure, insulating protector is used for carrying out insulating protection to the output pole of battery module, the output pole includes water conservancy diversion row and copper bar, be equipped with the storage tank on the end plate of battery module, insulating protector includes the base, the base includes spacing subassembly, spacing subassembly and storage tank joint on the horizontal direction, the water conservancy diversion is arranged and is fixed on the electric core of battery module and has the part that stretches into to the base in, water conservancy diversion row and copper bar link to each other with the base is fixed, the base receives spacingly on the upper and lower direction by virtue of its and the connection between the water conservancy diversion row. When the insulating protection device is applied to the energy storage battery box, the problem that the connection strength between the insulating protection device and the battery module is redundant cannot occur, and the insulating protection device has better cost performance.
Description
Technical Field
The utility model particularly relates to an insulating protective structure, battery package, energy storage battery box.
Background
The minimum unit in the battery system is an electric core, a plurality of electric cores can form a battery module, and a plurality of battery modules can form a battery pack.
As shown in fig. 1, the battery module includes an electrical core 1, a flow guide row 2 and an end plate 3, wherein the end plate 3 is located outside the electrical core 1 at the end of the battery module and is shorter than the electrical core 1, the electrical core 1 is electrically connected to the flow guide row 2 made of metal, at least one flow guide row 2 protruding out of the electrical core 1 is arranged on the electrical core 1 closest to the end plate 3, a part of the flow guide row 2 protruding out of the electrical core 1 extends above the end plate 3 for being electrically connected to one end of a strip-shaped copper bar (not shown) to form an output electrode of the battery module, and meanwhile, the other end of the copper bar is used for being electrically connected to the flow guide row 2 in another battery module, thereby establishing an electrical connection relationship between the battery modules.
In the related art, since the diversion row 2 and the copper bar are both conductors and belong to high-voltage devices, an insulation protection device mainly made of insulation materials (such as plastics) is arranged at the joint of the diversion row 2 and the copper bar, and the insulation protection device can cover the outer side of the joint of the diversion row 2 and the copper bar to perform insulation protection on the joint and is also used for providing a bearing and fixing platform for the joint between the diversion row 2 and the copper bar. Generally, the insulating protection device is fixedly connected with the end plate 3 through structures such as a reed connection, a bolt connection and a snap connection, but the structure increases the manufacturing cost of the insulating protection device, and for some battery packs which are mostly operated in a static environment, the connecting strength between the insulating protection device and the end plate 3 is redundant, and the cost performance is low.
To describe this in more detail, after such an insulation protection device is assembled with the end plate 3, the structure such as the aforementioned buckle is often used to limit the position in the vertical, front, rear, left and right directions, and when the working environment of the battery module is stable, the battery module is not bumpy, and the battery module is applied to a device with low requirement on production precision (for example, applied to an energy storage battery box), the insulation protection device is often limited only in the horizontal direction, but not limited by the high strength in the vertical direction, and at this time, the insulation protection device with the structure such as the buckle has a problem of excessive performance. Further, since it is often necessary to add corresponding structural features to the end plate 3 and the insulation protection device when the fasteners are disposed (for example, when the fasteners are disposed, a chuck needs to be disposed on one of the end plate and the insulation protection device, and a fastening hole is disposed on the other of the end plate and the insulation protection device), and the forming accuracy of the end plate 3 and the insulation protection device is increased to ensure that the respective added structural features can be matched with each other, such an arrangement also increases the manufacturing cost of the insulation protection device and the battery module, reduces the cost performance of the insulation protection device, and causes unnecessary tolerance accumulation of the battery module in the vertical direction.
SUMMERY OF THE UTILITY MODEL
To sum up, an object of the utility model is to provide an insulating protective structure, battery package, energy storage battery case.
The utility model provides an insulating protective structure includes battery module and insulating protector, insulating protector is used for carrying out insulating protection to the output pole of battery module, the output pole includes water conservancy diversion row and copper bar, be equipped with the storage tank on the end plate of battery module, insulating protector includes the base, the base includes spacing subassembly, spacing subassembly with the storage tank joint on the horizontal direction, the water conservancy diversion is arranged and is fixed have on the electric core of battery module stretch into to part in the base, the water conservancy diversion arrange with the copper bar with the base is fixed to link to each other, the base rely on it with connection between the water conservancy diversion row receives spacingly on the upper and lower direction.
Optionally, the accommodating groove has a polygonal cross section, the limiting assembly includes a first limiting portion, the first limiting portion is arranged in the accommodating groove from top to bottom and is matched with the accommodating groove, a side wall of the accommodating groove is in contact with the first limiting portion, and the side wall of the accommodating groove blocks an axial rotating track of the first limiting portion.
Optionally, the height of the end plate is lower than that of the battery cell, the insulation protection device further includes a support portion and a cushion portion, the support portion is located above the cushion portion, and is used for the diversion row and the copper bar to extend into, and is further used for being connected with a protective shell; the cushion part and the bearing part are connected into a whole and are used for making up the height difference between the end plate and the battery cell; the first limiting portion comprises a first main body and a first limiting rib, the first main body extends downwards from the pad portion, and the first limiting rib extends outwards from the side surface of the first main body and is used for being in contact with the side wall of the accommodating groove.
Optionally, the first body is a cuboid with a length direction in an up-down direction, and a lightening hole for lightening the weight of the base and reducing production materials is formed in the middle of the cuboid.
Optionally, the position limiting assembly further includes a second position limiting portion, the second position limiting portion is located on one side of the first position limiting portion, which is far away from the battery core, and includes a second main body and a second position limiting rib, the second main body is formed by extending downward from the cushion portion, and the first position limiting rib is formed by extending outward from a surface of the second main body, which faces the first position limiting portion; the end plate is provided with a partial structure located between the first limiting part and the second limiting part, and the partial structure of the end plate is clamped between the first limiting rib and the second limiting rib.
Optionally, the second main body is a U-shaped member with an opening facing away from the first limiting portion.
Optionally, a fixing member penetrates through the guide bar, the copper bar and the base to fix the guide bar and the copper bar on the base; the base internal fixation has fixed fitting spare, the mounting with fixed fitting spare threaded connection.
Optionally, the fixing member is a bolt, the fixing mating member is a nut, the nut is integrally embedded in the base, the nut is T-shaped, a hexagonal flange surface is arranged at the upper part of the nut, and an annular groove is arranged at the middle part of the nut.
The utility model also provides a battery package, include as above arbitrary any insulating protective structure.
The utility model also provides an energy storage battery box, include as above arbitrary any the insulating protective structure.
In summary, the base of the insulation protection device is provided with the limiting part which can be placed into the end plate from top to bottom so as to only realize horizontal limiting of the insulation protection device on the end plate, and the insulation protection structure provided by the utility model is particularly suitable for devices which work in a stable environment for a long time like an energy storage battery box; when the insulating protection device is applied to the energy storage battery box, the problem that the connection strength between the insulating protection device and the battery module is redundant cannot occur, and the insulating protection device has better cost performance.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view illustrating a battery module according to the related art.
Fig. 2 is a first schematic view of the insulation protector assembled on the end plate according to the embodiment of the present invention.
Fig. 3 is a schematic view of the protective housing and the base in the embodiment of the present invention.
Fig. 4 is a schematic view of a partial structure of an insulation protection device according to an embodiment of the present invention.
Fig. 5 is a second schematic view of the insulation protector assembled on the end plate according to the embodiment of the present invention.
Fig. 6 is a first schematic view of an insulation protection device according to an embodiment of the present invention.
Fig. 7 is a second schematic view of the insulation protection device according to the embodiment of the present invention.
Fig. 8 is a first schematic view of the fitting relationship between the limiting portion and the end plate according to the embodiment of the present invention.
Fig. 9 is a second schematic view illustrating a fitting relationship between the limiting portion and the end plate according to an embodiment of the present invention.
Description of the reference numerals
1-battery cell, 2-flow guide row, 3-end plate, 31-containing groove, 4-protective shell, 41-buckle hole, 5-base, 51-clamping head, 52-bearing part, 53-pad part, 531-weight reduction channel, 54-limiting component, 541-first limiting part, 5411-first main body, 5412-first limiting rib, 5413-weight reduction hole, 542-second limiting part, 5421-second main body, 5422-second limiting rib, 6-copper bar, 7-fixing piece and 8-fixing matching piece.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The terms "first," "second," and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
As shown in fig. 2 and fig. 3, this embodiment provides an insulating protection structure applied to a battery pack in an energy storage battery box, including battery module and insulating protection device, this battery module includes a water conservancy diversion row 2 (made of metal), an end plate 3 and a battery cell 1 located at the end of the battery module, and this battery cell 1 is provided with a water conservancy diversion row 2 protruding rightward from the upper surface of the body, and the end plate 3 is located the right side of this battery cell 1 and the insulating protection device is fixed on it for insulating protection is carried out to the output pole of the battery module. In this embodiment, the middle portion of the end plate 3 is provided with a plurality of accommodating grooves 31 arranged along the vertical direction, the insulating protection device comprises a protective shell 4 and a base 5 which are detachably connected, wherein the protective shell 4 is used for covering the base 5 so as to perform insulating protection on the output electrode of the battery module in cooperation with the base 5, the upper portion of the base 5 is used for being matched with the protective shell 4, and the partial structure of the lower portion of the base can be placed into the accommodating grooves 31 from top to bottom and clamped with the accommodating grooves 31 in the horizontal direction. After the copper bar 6, the electric core 1, the flow guide bar 2, the end plate 3 and the base 5 are assembled, one end of the copper bar 6 and one end of the flow guide bar 2 are overlapped and placed on the base 5, and a fixing piece 7 (a bolt in the embodiment) made of metal penetrates through the copper bar 6, the flow guide bar 2 and the base 5, so that the copper bar 6 is connected with the flow guide bar 2 and the flow guide bar 2 is fixed on the base 5; at this moment, the insulation protection device realizes horizontal limit by means of the matching between the insulation protection device and the end plate 3, and realizes the limit of the insulation protection device in the vertical direction by means of the connection force between the insulation protection device and the flow guide bar 2 and the connection force between the flow guide bar 2 and the battery cell 1.
Optionally, the base 5 of this embodiment is embedded with the fixed fitting 8 (made of metal) shown in fig. 4 through the insert molding method, the fixed fitting 8 is a T-shaped nut for being in threaded connection with the fixing member 7, the upper portion of the nut has a hexagonal flange surface, and the middle portion of the nut can be provided with an annular groove, the hexagonal flange surface can effectively increase the torsional bonding strength of the base 5 and the embedded nut, and the annular groove structure can effectively increase the vertical pull-off strength of the embedded nut.
Specifically, the protective casing 4 in this embodiment is a right-angled U-shaped part with an opening facing downward, the front and rear side surfaces of which are provided with fastening holes 41 penetrating therethrough, and correspondingly, the front and rear side surfaces of the upper portion of the base 5 are provided with locking heads 51, and the locking heads 51 are formed by protruding from the side surfaces of the base 5 and can be engaged with the fastening holes 41 to realize the detachable connection between the protective casing 4 and the base 5. Referring to fig. 5 to 6, the end plate 3 of the present embodiment is formed by forming a skeleton through an aluminum extrusion process and then coating an insulating material thereon, and the receiving groove 31 of the end plate 3 penetrates the end plate 3 in the vertical direction and has a rectangular cross section with a simple shape, so that the end plate 3 has a low processing cost; correspondingly, the base 5 comprises a bearing part 52 formed integrally through injection molding, a cushion part 53 and a limiting component 54, the bearing part 52, the cushion part 53 and the limiting component 54 are sequentially arranged from top to bottom, wherein the limiting component 54 is used for being matched with the accommodating groove 31 so that the base 5 can be limited in the horizontal direction after the base 5 is assembled with the end plate 3, the cushion part 53 is used for compensating the height difference between the end plate 3 and the battery cell 1 after the limiting component 54 is matched with the end plate 3, the bearing part 52 is used for enabling the guide bar 2 and the copper bar 6 to penetrate through the left part and the right part of the guide bar 2 and the copper bar 6 respectively, and a bearing and a fixing platform are provided for connection of the guide bar 2 and the copper bar 6.
More specifically, the support portion 52 is a right-angled U-shape with an upward opening and a right-left through, and the front and rear side walls thereof are provided with the above-mentioned chuck 51 and are the portions of the base 5 that engage with the protective case 4; the cushion part 53 is positioned below the bearing part 52 and is connected with the bearing part 52 into a whole, the outer contour of the cross section of the cushion part is rectangular, and two weight reducing channels 531 which penetrate through the cushion part in the left-right direction are arranged on the cushion part, so that the production materials of the base 5 are reduced, and the weight of the whole base 5 is reduced; the position-limiting component 54 includes a first position-limiting portion 541, which has a shape capable of extending into the receiving slot 31 and matching with the receiving slot 31, and when the first position-limiting portion 541 matches with the receiving slot 31, each sidewall of the receiving slot 31 will block on an axial rotation path of the first position-limiting portion 541, so that the first position-limiting portion 541 cannot rotate with its own axial direction as a central axis, so as to ensure that the first position-limiting portion 541 cannot rotate with the copper bar 6 when the flow-guiding row 2 is connected with the copper bar 6 by the fixing member 7; in other words, the first position-limiting portion 541 and the receiving groove 31 are configured to meet the torque requirement when the output electrode of the battery module is assembled.
Referring to fig. 7 to 9, the first position-limiting portion 541 includes a first main body 5411 and a first position-limiting rib 5412, wherein the first main body 5411 is a cuboid extending downward from the lower surface of the cushion portion 53, the front, rear, left, and right side surfaces of the cuboid are provided with the first position-limiting ribs 5412 protruding outward, when the first position-limiting portion 541 extends into the accommodating groove 31, the first position-limiting rib 5412 is used for contacting with the side wall in the accommodating groove 31, so that the first position-limiting portion 541 cooperates with the end plate 3 and cannot rotate around its own axial direction as a central axis, and is limited in the horizontal direction; preferably, the middle part of the cuboid is provided with lightening holes 5413 penetrating through the cuboid in the up-down direction, and the lightening holes 5413 are arranged to reduce the production materials of the base 5 and the weight of the whole base 5; more preferably, the lower end of the first limiting rib 5412 is provided with a height gradually changing structure, that is, the height of the outward protrusion of the first limiting rib 5412 relative to the first main body 5411 is in a conical contraction trend at the lower end of the first limiting rib 5412, so as to play a role in guiding and preventing the first limiting portion 541 from colliding and damaging, and facilitate the operation of placing the first limiting portion 541 into the accommodating groove 31.
Further, a second position-limiting portion 542 is disposed at a right side of the first position-limiting portion 541 at an interval, and the second position-limiting portion 542 in this embodiment is used for cooperating with the first position-limiting portion 541, so as to further ensure that the base 5 cannot be easily moved in the horizontal direction after cooperating with the end plate 3. To describe this in more detail, the second limiting portion 542 includes a second main body 5421 and a second limiting rib 5422, wherein the second main body 5421 is a U-shaped member extending downward from the lower surface of the pad portion 53, and has an opening facing to the right and a middle portion recessed with respect to front and rear ends thereof; meanwhile, the front, rear, left and right side surfaces of the U-shaped part are convexly extended to form second limiting ribs 5422, when the first limiting portion 541 extends into the accommodating groove 31, the second limiting portion 542 is located on the right side of the front surface of the end plate 3 and contacts with the front surface of the end plate 3, and is further cooperated with the first limiting ribs 5412 located on the right side of the first limiting portion 541, so that the front surface of the end plate 3 is clamped between the first limiting ribs 5412 located on the right side of the first limiting portion 541 and the self, and the base 5 is more reliably limited in the horizontal direction. Preferably, the lower end of the second stopper rib 5422 located at the front surface of the second body 5421 is provided with a width gradually varying structure like that on the first stopper rib 5412 described above.
It should be noted that the second main body 5421 is designed to have a U-shape, and the shape is a mature shape in the molding process, and is easy to mold; secondly, in the injection molding process, a second limiting rib 5422 is easily formed on the shape through the arrangement of a cavity; for the first time, the recessed area naturally located in the middle of the second body 5421 facilitates reducing the production material of the base 5 and reducing the weight of the entire base 5.
In conclusion, the base 5 of the insulation protection device is provided with the limiting part which can be placed into the end plate 3 from top to bottom so as to only realize the horizontal limiting of the insulation protection device on the end plate 3, and the insulation protection structure provided by the utility model is particularly suitable for devices which work in a stable environment for a long time like an energy storage battery box; when the insulation protection device is applied to the energy storage battery box, the problem that the connection strength between the insulation protection device and the battery module has redundancy is solved, and the insulation protection device has better cost performance; further, because the subassembly that can carry out spacing from top to bottom is not specially equipped with between this insulation protection device and the battery module, battery module and insulation protection device among this insulation protection structure will have great vertical tolerance scope (also the production precision is put down properly promptly), can indirectly increase the yields in production and the assembling process.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an insulating protective structure, includes battery module and insulating protector, insulating protector is used for carrying out insulating protection to the output pole of battery module, the output pole includes water conservancy diversion row (2) and copper bar (6), a serial communication port, be equipped with storage tank (31) on end plate (3) of battery module, insulating protector includes base (5), base (5) are including spacing subassembly (54), spacing subassembly (54) with storage tank (31) joint in the horizontal direction, water conservancy diversion row (2) are fixed on battery module's electric core (1) and have stretch into to part in base (5), water conservancy diversion row (2) with copper bar (6) with base (5) are fixed continuous, base (5) rely on it with connection between water conservancy diversion row (2) receive spacingly in the upper and lower direction.
2. The insulation protection structure according to claim 1, wherein the receiving slot (31) has a polygonal cross section, the position-limiting component (54) includes a first position-limiting portion (541), the first position-limiting portion (541) is configured to be received in the receiving slot (31) from top to bottom and is engaged with the receiving slot (31), a sidewall of the receiving slot (31) contacts with the first position-limiting portion (541), and a sidewall of the receiving slot (31) is blocked on an axial rotation track of the first position-limiting portion (541).
3. The insulation protection structure according to claim 2, characterized in that the height of the end plate (3) is lower than that of the battery cell (1), the insulation protection device further comprises a bearing part (52) and a cushion part (53), the bearing part (52) is located above the cushion part (53) and is used for the flow guide row (2) and the copper bar (6) to extend into and is also used for being connected with a protective shell (4); the pad part (53) and the supporting part (52) are connected into a whole and are used for compensating the height difference between the end plate (3) and the battery core (1); the first position limiting portion (541) comprises a first main body (5411) and a first position limiting rib (5412), wherein the first main body (5411) is formed by extending downwards from the position limiting portion (53), and the first position limiting rib (5412) is formed by extending outwards from the side surface of the first main body (5411) and is used for being in contact with the side wall of the accommodating groove (31).
4. The insulation shield structure as claimed in claim 3, wherein said first main body (5411) is a rectangular parallelepiped with a longitudinal direction in a vertical direction, and is provided at a central portion thereof with lightening holes (5413) for reducing the weight of said base (5) and reducing production materials.
5. The insulation protection structure according to claim 3, wherein the position-limiting component (54) further comprises a second position-limiting portion (542), the second position-limiting portion (542) is located on a side of the first position-limiting portion (541) away from the battery cell (1), and comprises a second main body (5421) and a second position-limiting rib (5422), the second main body (5421) is formed by extending downward from the position-limiting portion (53), and the first position-limiting rib (5412) is formed by extending outward from a surface of the second main body (5421) facing the first position-limiting portion (541); the end plate (3) is provided with a partial structure located between the first limiting part (541) and the second limiting part (542), and the partial structure of the end plate (3) is clamped between the first limiting rib (5412) and the second limiting rib (5422).
6. The insulation protection structure of claim 5, wherein said second body (5421) is a U-shaped piece with an opening facing away from said first retaining portion (541).
7. Insulation protection structure as claimed in claim 1, characterized in that a fixing element (7) penetrates said guide bar (2), said copper bar (6) and said base (5) to fix said guide bar (2) and said copper bar (6) on said base (5); the base (5) internal fixation has fixed fitting piece (8), mounting (7) with fixed fitting piece (8) threaded connection.
8. The insulation protection structure according to claim 7, characterized in that said fixing element (7) is a bolt, said fixing counterpart (8) is a nut, said nut is integrally embedded in said base (5), said nut is T-shaped, its upper portion has a hexagonal flange face, and its middle portion has an annular groove.
9. A battery pack comprising the insulating protection structure according to any one of claims 1 to 8.
10. An energy storage battery box characterized by comprising the insulating protection structure according to any one of claims 1 to 8.
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CN202222050587.XU CN218215523U (en) | 2022-08-03 | 2022-08-03 | Insulation protection structure, battery pack and energy storage battery box |
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CN202222050587.XU CN218215523U (en) | 2022-08-03 | 2022-08-03 | Insulation protection structure, battery pack and energy storage battery box |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116799418A (en) * | 2023-08-22 | 2023-09-22 | 深圳海辰储能控制技术有限公司 | Battery module, energy storage system and electric equipment |
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2022
- 2022-08-03 CN CN202222050587.XU patent/CN218215523U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116799418A (en) * | 2023-08-22 | 2023-09-22 | 深圳海辰储能控制技术有限公司 | Battery module, energy storage system and electric equipment |
CN116799418B (en) * | 2023-08-22 | 2024-01-23 | 深圳海辰储能控制技术有限公司 | Battery module, energy storage system and electric equipment |
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