CN116885403A - Insulating part of single cell - Google Patents

Insulating part of single cell Download PDF

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Publication number
CN116885403A
CN116885403A CN202310872164.2A CN202310872164A CN116885403A CN 116885403 A CN116885403 A CN 116885403A CN 202310872164 A CN202310872164 A CN 202310872164A CN 116885403 A CN116885403 A CN 116885403A
Authority
CN
China
Prior art keywords
insulating
groove
splice
insulating plate
single cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310872164.2A
Other languages
Chinese (zh)
Inventor
李臣
沈威
段海波
姜华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Xieneng Technology Co ltd
Original Assignee
Hangzhou Xieneng Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Xieneng Technology Co ltd filed Critical Hangzhou Xieneng Technology Co ltd
Priority to CN202310872164.2A priority Critical patent/CN116885403A/en
Publication of CN116885403A publication Critical patent/CN116885403A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • 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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention provides an insulating part of a single battery cell, which is applied to a battery module. The invention can avoid the easy falling of the insulating part and improve the insulating performance of the single battery cell.

Description

Insulating part of single cell
Technical Field
The invention relates to the technical field of energy storage, in particular to an insulating component of a single cell.
Background
The battery plug-in box is an important component of the energy storage system, and achieves the functions of storing electric energy and supplying power through battery modules, and each battery module comprises a plurality of single battery cells. The use safety of the battery plug box is extremely important, and the national standard has high requirement on the insulation performance of the single battery core in the battery plug box. Therefore, in the current manufacturing process of many battery modules, in order to improve the insulativity of the single battery cells, an insulating plate is arranged between the two single battery cells, but the insulating plate is clamped between the two single battery cells and is easy to fall off in the assembling process, other surfaces of the single battery cells are not insulated and isolated, the box body of the battery plug box is manufactured by a sheet metal part, and the plurality of single battery cells are bound into the battery module by the sheet metal part, so that other surfaces of the single battery cells can be directly contacted with the sheet metal part, the insulating performance is poor, and the national standard requirement is not met.
Disclosure of Invention
Accordingly, the present invention is directed to an insulating member for a single cell, which prevents falling off and improves the insulating performance of the single cell.
In order to achieve the above object, the invention provides an insulating component of a single battery cell, which is applied to a battery module, wherein the battery module is provided with a plurality of single battery cells, and comprises an insulating body, wherein the insulating body is used for being sleeved with the single battery cells and is arranged in an insulating way, the insulating body comprises an opening end and a containing cavity, and the single battery cells are sleeved into the containing cavity through the opening end.
Preferably, the insulating body comprises an upper insulating plate, a lower insulating plate, a left insulating plate, a right insulating plate and an end insulating plate, wherein the end insulating plate is positioned at the rear end of the insulating body, and the upper insulating plate, the lower insulating plate, the left insulating plate, the right insulating plate and the end insulating plate are surrounded to form the accommodating cavity.
Preferably, the end insulating plate comprises a hollowed-out portion, and the hollowed-out portion is used for avoiding parts at the end of the single battery cell.
Preferably, the length of the insulating body is not more than 1/2 of the length of the single battery cell, and two ends of the single battery cell in the length direction are respectively sleeved with an insulating part.
Preferably, the plurality of single battery cells are arranged in parallel along the thickness direction, the insulating part comprises a splicing part and/or a splicing groove, the splicing part and the splicing groove are respectively positioned at two sides of the first direction of the insulating body, the first direction is the same as the arrangement direction of the plurality of single battery cells, the splicing part extends towards the direction away from the insulating body, the splicing groove is concavely arranged towards the direction of the center of the insulating body, the splicing part is matched with the size of the splicing groove, and two adjacent insulating parts are spliced through the splicing part and the splicing groove.
Preferably, the splicing piece is provided with a positioning hole, the splicing groove is provided with a positioning piece, the size of the positioning piece is matched with the size of the positioning hole, and when two adjacent insulating parts are spliced, the positioning piece and the positioning hole are used for positioning.
Preferably, the battery pack further comprises a steel belt groove, two ends of the steel belt groove are open, the steel belt groove is parallel to the first direction, the steel belt groove is used for positioning a steel belt, and the steel belt is used for binding the plurality of single battery cells into a group.
Preferably, the battery pack further comprises a pressing strip groove, wherein the pressing strip groove is positioned at the top of the insulating body, two ends of the pressing strip groove are open, the pressing strip groove is parallel to the first direction and used for positioning a pressing strip, and the pressing strip is used for connecting and fixing the battery module and the box body.
Preferably, the upper protrusion structure is connected with the upper insulating plate and protrudes upwards, the upper protrusion structure comprises a first protrusion part, a middle protrusion part and a second protrusion part which are parallel to each other, the top surfaces of the first protruding portion, the middle protruding portion and the second protruding portion are flush, and the lower protruding structure is identical to the upper protruding structure and symmetrically arranged.
Preferably, the upper protruding structure comprises a first reinforcing part and a second reinforcing part, the first reinforcing part is positioned between the first protruding part and the middle protruding part, the top surface of the first reinforcing part is lower than the top surface of the first protruding part, and the top surface of the first reinforcing part forms the bottom of the layering groove; the second reinforcing part is positioned between the middle protruding part and the second protruding part, the top surface of the second reinforcing part is lower than the top surface of the second protruding part, and the top surface of the second reinforcing part forms the groove bottom of the steel groove.
Compared with the prior art, the technical scheme of the invention has the following advantages: the insulating body is sleeved with the single battery cell, so that the insulating part is prevented from falling off easily; the insulating body insulates and isolates the surfaces of the battery cell, so that other surfaces are prevented from being in direct contact with the sheet metal part, and the insulating performance of the single battery cell is improved; the adjacent two insulating components are connected through the splice and the splice groove, so that the grouping efficiency of the plurality of single cells is improved; positioning is carried out through the positioning piece and the positioning hole, so that grouping stability is improved; the steel belt is positioned through the steel belt groove, so that the stability of the single battery group is further improved; the layering is positioned through the layering groove, so that the battery module is conveniently and firmly connected with the box body; insulating parts are sleeved at the two ends of the single battery core, so that the two ends of the single battery core are insulated and isolated, the surfaces of the middle parts are directly exposed, the cost of the insulating parts can be reduced, and the heat dissipation area of the single battery core is increased; the strength of the insulating member is increased by the upper and lower protrusion structures.
Drawings
Fig. 1 is a schematic view of a battery module according to an embodiment of the present invention;
FIG. 2 is a schematic view of an insulating member according to an embodiment of the present invention;
FIG. 3 is a top view of an insulating member according to an embodiment of the present invention;
fig. 4 is a schematic diagram of splicing two insulating components according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a single battery cell and an insulating component sleeved with each other according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a battery receptacle according to an embodiment of the present invention;
fig. 7 is a schematic view of a molding according to an embodiment of the present invention.
In the figure:
1. a case; 2. a single cell; 3. an insulating member; 311. an upper insulating plate; 312. a lower insulating plate; 313. a left insulating plate; 314. a right insulating plate; 315. an end insulating plate; 3151. a diagonal support; 3152. a horizontal support; 321. a first splice; 322. a first splice groove; 323. positioning holes; 324. a positioning piece; 325. a second splice; 33. a steel belt groove; 34. a layering groove; 351. a first boss; 352. a second protruding portion; 353. a middle boss; 354. a first reinforcing part; 355. a second reinforcing part; 4. a steel strip; 5. pressing strips; 51. a horizontal layering; 52. vertical pressing strips; 53. a first connector; 54 a second connector.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments only. The invention is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the invention.
In the following description of preferred embodiments of the invention, specific details are set forth in order to provide a thorough understanding of the invention, and the invention will be fully understood to those skilled in the art without such details.
In the present disclosure, where the description refers to "first," "second," etc., the description of "first," "second," etc., is for descriptive purposes only and is not intended to specifically identify the order or sequence of features or to limit the disclosure, but is merely for distinguishing between components or operations described in the same technical language and not to be construed as indicating or implying any particular importance or order of such features.
The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. It should be noted that the drawings are in a simplified form and are not to scale precisely, but rather are merely intended to facilitate and clearly illustrate the embodiments of the present invention.
Fig. 1 is a schematic diagram of a battery module according to an embodiment of the invention. The battery module is applied to the battery plug box of the energy storage system, the battery plug box comprises a box body 1 made of metal plates and at least one battery module, the battery module comprises a plurality of single battery cells 2, the single battery cells 2 are arranged in parallel along the thickness direction, and each single battery cell 2 is sleeved with an insulating part 3 so as to be isolated from each other. In this embodiment, a battery plug box including two battery modules, each of which has 8 single cells is taken as an example, and the 8 single cells are horizontally installed in the case 1.
Please refer to fig. 2, which is a schematic diagram of an insulation component provided in this embodiment, the insulation component includes an insulation body, the insulation body is in a frame shape, and includes an open end and a receiving cavity, and the single cell 2 can be sleeved into the receiving cavity of the insulation body through the open end, so that the insulation body is sleeved on the single cell and is not easy to fall off, and in addition, the insulation body is coated on the surface of the single cell, so that the single cell is insulated, the surface of the single cell 2 is prevented from being contacted with objects such as a sheet metal part, and the insulation property of the single cell is improved.
Specifically, as shown in fig. 2 to 4, the insulating body includes an upper insulating plate 311, a lower insulating plate 312, a left insulating plate 313, a right insulating plate 314 and an end insulating plate 315, where the upper insulating plate 311 and the lower insulating plate 312 are oppositely disposed, and are respectively located at the top and bottom of the insulating body, insulating and isolating the top and bottom surfaces of the single battery core, the left insulating plate 313 and the right insulating plate 314 are oppositely disposed, and are respectively located at the left and right sides of the insulating body, insulating and isolating the left and right sides of the single battery core, the end insulating plate 315 is vertically disposed at the rear end of the insulating body, insulating and isolating the end surface of the single battery core, the front end of the insulating body is an open end, and a containing cavity is enclosed between the upper insulating plate 311, the lower insulating plate 312, the left insulating plate 313, the right insulating plate 314 and the end insulating plate 315, and the inner size of the containing cavity can be slightly smaller than the size of the single battery core 2, so that the insulating body is firmly sleeved, and the anti-drop effect is further enhanced.
In this embodiment, the insulating member is made of plastic material, and the insulating body is split, wherein the left insulating plate 313, the upper insulating plate 311 and the right insulating plate 314 are integrally made into a U shape, and the end insulating plate 315 and the lower insulating plate 312 are integrally made into an L shape.
In other embodiments, the insulating body or the whole insulating part can be integrally formed from plastic materials.
Specifically, after the single cell 2 is sleeved with the insulating body, the end part of the single cell 2 is abutted with the end insulating plate 315, as shown in fig. 2, the end insulating plate 315 is in a vertical flat plate shape, a rectangular hollowed-out part is arranged, so that the single cell 2 can radiate heat and avoid parts such as a pole column and an explosion-proof valve at the end part of the single cell 2, the wiring work of the single cell 2 is not affected, and specifically, inclined supports 3151 are arranged at four corners of the hollowed-out part, and horizontal supports 3152 are arranged, so that the strength of the end insulating plate 315 can be improved, and deformation is prevented. Therefore, the insulating component provided by the embodiment is not only suitable for the single battery cell with the pole at one end, but also suitable for the single battery cell with the pole at two ends.
In other embodiments, the upper insulating plate 311, the lower insulating plate 312, the left insulating plate 313 and the right insulating plate 314 may be provided with hollowed portions, so as to improve the heat dissipation effect of the single cell 2.
The length of the insulating body can be set long enough to completely cover the single battery cell, and the length of the insulating body can not exceed 1/2 of the length of the single battery cell 2, so that part of the surface in the middle of the single battery cell 2 is directly exposed outside, the cost is reduced, and the heat dissipation is improved. Preferably, as shown in fig. 5, in this embodiment, the length of the insulating body is 1/4 of the length of the single battery core, and two ends of each single battery core 2 are respectively sleeved with an insulating component 3, so that part of the surfaces of each side surface of each single battery core 2 are directly exposed, the heat dissipation area is increased, and the cost of the insulating component is reduced. When a plurality of single cells 2 in the battery module are arranged in parallel to form a group, two adjacent single cells 2 are separated by insulating parts 3 at two ends, and the middle exposed parts are not in direct contact and are also isolated.
In order to improve the wholeness of the battery module, the insulating part further comprises splicing parts and/or splicing grooves, the splicing parts and the splicing grooves are respectively arranged on two sides of the first direction of the insulating body, the first direction is consistent with the parallel arrangement direction of the single battery cells, when the plurality of single battery cells 2 are in parallel combination, the splicing parts sleeved with the insulating part 3 are spliced with the splicing grooves of the adjacent insulating parts in sequence to form a whole, the wholeness of the battery module is improved, the grouping efficiency of the battery module is improved, and the follow-up steel belt binding work is facilitated. As shown in fig. 2, in this embodiment, the splice includes a first splice 321 and a second splice 325 symmetrically disposed up and down, the splice includes a first splice 322 and a second splice (not shown in the drawing) symmetrically disposed up and down, the first splice 321 is located at the left side of the insulating body and connected with the upper insulating plate 311 and extends in a direction away from the insulating body, the first splice is located at the right side of the insulating body and connected with the upper insulating plate 311 and concavely disposed in a direction toward the center of the insulating body, and the size of the first splice 321 is adapted to the size of the first splice 322 and corresponds to the position.
In order to increase the stability of splicing, a positioning hole 323 is further formed in the first splicing element 321, as shown in fig. 3, the positioning hole 323 is rectangular and penetrates through the first splicing element 321, a positioning element 324 is arranged on the first splicing groove 322, the positioning element 324 protrudes upwards from the bottom of the first splicing groove 322, the structural size of the positioning element 324 is matched with that of the positioning groove 323, the positioning element corresponds to the positioning groove 323 in position, and when two adjacent insulating parts are spliced, the positioning element 324 is embedded into the positioning hole 323 to realize positioning as shown in fig. 4.
The structural size of the second splice member 325 is the same as that of the first splice member 321, the second splice member 325 is connected with the lower insulating plate 312, the structural size of the second splice groove is the same as that of the first splice groove 322, the second splice groove is connected with the lower insulating plate 312, and the position corresponds to the second splice member 325.
According to the arrangement positions of the plurality of single battery cells 2 in the battery module, the insulation components which are adapted to the single battery cells can be divided into a first insulation component, a middle insulation component and a last insulation component, wherein the first insulation component and the last insulation component can be adapted to a first single battery cell and a last single battery cell, and the middle insulation component is adapted to other single battery cells. The first insulating part only needs to be provided with the splice, the last insulating part only needs to be provided with the splice, and other middle insulating parts which are positioned in the middle and are matched with the single battery cells need to be provided with the splice and the splice at the same time. The positioning holes and the positioning pieces are also arranged in the same way.
In this embodiment, two battery modules in the battery box are mounted in a stacked manner of upper and lower layers, so as to reduce the volume of the battery box, and thus the battery module located at the lower layer needs to support the battery module located at the upper layer. Accordingly, the insulating member further includes an upper protrusion structure connected with the upper insulating plate 311 and protruding upward, and a lower protrusion structure, which can improve the strength of the insulating member and serve to support the unit cells located at the upper layer. As shown in fig. 2 and 3, the upper protrusion structure includes a first protrusion 351, a second protrusion 352 and a middle protrusion 353 parallel to each other, the middle protrusion 353 is disposed between the first protrusion 351 and the second protrusion 352, the first protrusion 351 is close to the front end of the upper insulation plate 311, the second protrusion 352 is close to the rear end of the upper insulation plate 311, and the top surfaces of the first protrusion 351, the second protrusion 352 and the middle protrusion 353 are flush. The single battery cell 2 on the upper layer is supported by arranging the protruding parts at three positions, and the support stability is high.
In this embodiment, the area between the middle protruding portion 353 and the second protruding portion 352 can be used as the first splicing groove 322, and the splicing groove does not need to be separately processed, so that the processing cost is reduced, and the height of the first splicing member 321 can be lower than the top surface of the protruding structure, so that after the first splicing member 321 is inserted into the first splicing groove 322, the single battery cell 2 on the upper layer of the protruding structure is not affected.
Specifically, when a plurality of single battery cells form a battery module, the battery module is also required to be bundled by the steel belt 4, and the steel belt 4 can be bundled on an insulating component when bundling a plurality of parallel single battery cells, so that the single battery cells 2 cannot be damaged, the single battery cells 2 cannot be directly contacted with the steel belt 4, and the battery module has good insulating property. The insulating member 3 is provided with steel belt grooves 33, and the steel belt grooves 33 position the steel belt 4, thereby improving the grouping efficiency. In this embodiment, two steel belt grooves 33 are respectively located at the top and the bottom of the insulating body, two ends of the steel belt grooves 33 are open and parallel to the first direction of the insulating body, and after a plurality of insulating components are arranged in parallel with the single battery cells, all the steel belt grooves 33 are located on the same straight line. As shown in fig. 3, in this embodiment, the space between the middle boss 353 and the second boss 352 is used as the steel belt slot 33, no separate processing is required, so that the cost is saved, in addition, the second reinforcing portion 355 is provided between the middle boss and the second boss 352 of the upper boss, the second reinforcing portion 355 is in a grid shape, is connected with the upper insulating plate 311 and protrudes upwards, so that the strength of the upper insulating plate 311 can be increased, the second reinforcing portion 355 is also connected with the middle boss 353 and the second boss 352 respectively, the supporting strength of the upper boss structure is improved, and the top surface of the second reinforcing portion 355 is lower than the top surface of the second boss 352, so that the steel belt slot 33 using the top surface of the second reinforcing portion 355 as the bottom surface of the steel belt slot can be formed.
As shown in fig. 6, when the battery module is mounted in the battery box, the battery module needs to be buckled and connected with the box 1 through the pressing bar 5, so as to prevent the battery module from moving in series. Wherein the pressing strip 5 can be buckled on the insulating part 3, so that the single battery cell 2 is not damaged, and the single battery cell 2 is not directly contacted with the pressing strip 5, and the insulating performance is good. The insulating part 3 is provided with a layering groove 34, the layering 5 is positioned through the layering groove 34, and therefore installation efficiency is improved. In this embodiment, as shown in fig. 7, the pressing strip 5 includes a horizontal pressing strip 51 and a vertical pressing strip 52, the vertical pressing strip 52 is disposed at one end of the horizontal pressing strip 51, the other end of the horizontal pressing strip 51 is connected with a first connecting piece 53, the top end of the vertical pressing strip 52 is connected with the horizontal pressing strip 51, the bottom end of the vertical pressing strip 52 is connected with a second connecting piece 54, wherein the first connecting piece 53 and the second connecting piece 54 are used for being connected and fixed with the box 1, when the battery module is buckled and pressed, the pressing strip 5 is buckled and pressed in the pressing strip groove 34, and is fixedly connected with the box 1 through the pressing strip 5, so that the battery module is fixedly limited, and the battery module is prevented from moving and being in serial.
In this embodiment, the space between the first protruding portion 351 and the middle protruding portion 355 is used as the molding groove 34, and no separate manufacturing is needed, so that the cost is saved. In addition, the upper protruding structure is further provided with a first reinforcing part 354 between the middle protruding part 353 and the first protruding part 351, the first reinforcing part 354 is in a grid shape, is connected with the upper insulating plate 311 and protrudes upwards, so that the strength of the upper insulating plate 311 can be increased, the first reinforcing part 354 is also connected with the middle protruding part 353 and the first protruding part 351 respectively, the supporting strength of the upper protruding structure is further improved, and the top surface of the first reinforcing part 354 is lower than the top surface of the first protruding part 351, so that a layering groove 34 taking the top surface of the first reinforcing part 351 as a groove bottom is formed.
In this embodiment, the lower protruding structures and the upper protruding structures have the same size and are symmetrically disposed on the lower insulating plate 312. The lower protruding structure of the sleeved insulating part 3 of the single battery cell positioned at the lower layer can be located at the bottom of the box body 1 so as to increase the heat dissipation space at the bottom of the single battery cell 2 at the lower layer. The lower protruding structure of the sleeved insulating part 3 can be located on the lower battery module, so that the heat dissipation space of the top of the lower single battery cell and the bottom of the upper single battery cell is increased, and the lower single battery cell is prevented from being extruded by the upper single battery cell.
In addition, the left side of first insulating part is provided with two vertical reinforcing plates, and two vertical reinforcing plates are connected perpendicularly with left insulation board 313 to extend towards the direction of keeping away from insulator, two vertical reinforcing plates are parallel to each other, form vertical groove between two vertical reinforcing plates, and the position in vertical groove corresponds with the position in layering groove 34, and the slot width is unanimous, and is the same, and last insulating part also correspondingly is provided with vertical groove.
Although the embodiments have been described and illustrated separately above, and with respect to a partially common technique, it will be apparent to those skilled in the art that alternate and integration may be made between embodiments, with reference to one embodiment not explicitly described, and reference may be made to another embodiment described.
The above-described embodiments do not limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the above embodiments should be included in the scope of the present invention.

Claims (10)

1. An insulating member of a single cell, applied to a battery module having a plurality of single cells (2), characterized by comprising:
the insulation body is used for being connected with the single battery cell (2) in a sleeved mode, and enabling the single battery cell (2) to be arranged in an insulation mode, the insulation body comprises an opening end and a containing cavity, and the single battery cell (2) is sleeved into the containing cavity through the opening end.
2. The insulating part of a single cell according to claim 1, wherein the insulating body comprises an upper insulating plate (311), a lower insulating plate (312), a left insulating plate (313), a right insulating plate (314) and an end insulating plate (315), the end insulating plate (315) is located at the rear end of the insulating body, and the upper insulating plate (311), the lower insulating plate (312), the left insulating plate (313), the right insulating plate (314) and the end insulating plate (315) enclose to form the accommodating cavity.
3. The insulating part of a single cell according to claim 2, wherein the end insulating plate (315) comprises a hollowed portion for avoiding parts of the end of the single cell (2).
4. The insulating part of a single cell according to claim 3, wherein the length of the insulating body is not more than 1/2 of the length of the single cell (2), and two insulating parts (3) are respectively sleeved at two ends of the single cell (2) in the length direction.
5. The insulating part of a single cell according to any one of claims 2-4, wherein the plurality of single cells (2) are arranged in parallel along the thickness direction, the insulating part (3) comprises a splice and/or a splice groove, the splice and the splice groove are respectively positioned at two sides of the first direction of the insulating body, the first direction is the same as the arrangement direction of the plurality of single cells (2), the splice extends towards the direction far away from the insulating body, the splice groove is concavely arranged towards the center of the insulating body, the splice is matched with the size of the splice groove, and two adjacent insulating parts (3) are spliced through the splice and the splice groove.
6. The insulating part of a single cell according to claim 5, wherein the splice is provided with a positioning hole (323), the splice groove is provided with a positioning piece (324), the size of the positioning piece (324) is adapted to the size of the positioning hole (323), and when two adjacent insulating parts (3) are spliced, the positioning is performed through the positioning piece (324) and the positioning hole (323).
7. The insulating member of a single cell according to claim 6, further comprising steel belt grooves (33), the steel belt grooves (33) being open at both ends, the steel belt grooves (33) being parallel to the first direction, the steel belt grooves (33) being used for positioning steel belts (4), the steel belts (4) being used for binding the plurality of single cells (2) into a group.
8. The insulating part of a single cell according to claim 7, further comprising a bead groove (34), wherein the bead groove (34) is positioned at the top of the insulating body, two ends of the bead groove (34) are open, the bead groove (34) is parallel to the first direction, the bead groove (34) is used for positioning a bead (5), and the bead (5) is used for connecting and fixing the battery module and the box (1).
9. The insulating member of claim 8, further comprising an upper protrusion structure connected with the upper insulating plate (311) and protruding upward, and a lower protrusion structure including a first protrusion (351), a middle protrusion (353), and a second protrusion (352) parallel to each other, the top surfaces of the first protrusion (351), the middle protrusion (353), and the second protrusion (352) being flush, and the lower protrusion structure being identical to and symmetrically disposed with the upper protrusion structure.
10. The insulating member of claim 9, wherein the upper protruding structure comprises a first reinforcing portion (354) and a second reinforcing portion (355), the first reinforcing portion (354) being located between the first protruding portion (351) and the middle protruding portion (353), a top surface of the first reinforcing portion (354) being lower than a top surface of the first protruding portion (351), the top surface of the first reinforcing portion (354) forming a groove bottom of the bead groove (34); the second reinforcing part (355) is positioned between the middle protruding part (353) and the second protruding part (352), the top surface of the second reinforcing part (355) is lower than the top surface of the second protruding part (352), and the top surface of the second reinforcing part (355) forms the bottom of the steel belt groove (33).
CN202310872164.2A 2023-07-17 2023-07-17 Insulating part of single cell Pending CN116885403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310872164.2A CN116885403A (en) 2023-07-17 2023-07-17 Insulating part of single cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310872164.2A CN116885403A (en) 2023-07-17 2023-07-17 Insulating part of single cell

Publications (1)

Publication Number Publication Date
CN116885403A true CN116885403A (en) 2023-10-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310872164.2A Pending CN116885403A (en) 2023-07-17 2023-07-17 Insulating part of single cell

Country Status (1)

Country Link
CN (1) CN116885403A (en)

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