CN115275537A - Insulating protector, battery module - Google Patents

Insulating protector, battery module Download PDF

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Publication number
CN115275537A
CN115275537A CN202210934859.4A CN202210934859A CN115275537A CN 115275537 A CN115275537 A CN 115275537A CN 202210934859 A CN202210934859 A CN 202210934859A CN 115275537 A CN115275537 A CN 115275537A
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CN
China
Prior art keywords
base
protective cover
protection device
battery module
insulation protection
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
CN202210934859.4A
Other languages
Chinese (zh)
Inventor
关辉平
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.)
Zhejiang Geely Holding Group Co Ltd
Weirui Electric Automobile Technology Ningbo Co Ltd
Zhejiang Zeekr Intelligent Technology Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Weirui Electric Automobile Technology Ningbo Co Ltd
Zhejiang Zeekr Intelligent 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 Zhejiang Geely Holding Group Co Ltd, Weirui Electric Automobile Technology Ningbo Co Ltd, Zhejiang Zeekr Intelligent Technology Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN202210934859.4A priority Critical patent/CN115275537A/en
Publication of CN115275537A publication Critical patent/CN115275537A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • H01M50/50—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
    • 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
    • H01M50/591—Covers
    • 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)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

The invention provides an insulation protection device and a battery module, wherein the insulation protection device is used for carrying out insulation protection on an output electrode of the battery module, the output electrode comprises a guide row and a copper bar, the insulation protection device comprises a protective cover and a base, the base is provided with an inlet for the guide row to extend into and a notch for the copper bar to extend into, the protective cover is used for covering the base, a detachable blocking piece capable of blocking the notch is arranged on the protective cover, and the detachable blocking piece can be separated from the protective cover under the action of external force. The insulation protection device has high universality and the characteristics of high universality and high insulation protection performance, and can reduce the development and management cost of the insulation protection device.

Description

Insulation protection device and battery module
Technical Field
The invention particularly relates to an insulation protection device and a battery module.
Background
The minimum unit in the power battery system is an electric core, a plurality of electric cores can form a battery module, and a battery pack can be formed by the plurality of battery modules.
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, the electrical core 1 is electrically connected to the flow guide row 2 made of metal, and at least one flow guide row 2 protruding out of the electrical core 1 is provided 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 the other end of the copper bar is 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, because 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, the insulation protection device can be covered outside the joint of the diversion row 2 and the copper bar to carry out insulation protection on the joint and is also used for providing a bearing and a fixing platform for the joint of the diversion row 2 and the copper bar; after the insulating protection device is assembled with the flow guide row 2 and the copper bar, the flow guide row 2 and the copper bar are arranged in the insulating protection device in a penetrating mode and have partial structures extending into the insulating protection device and partial structures extending out of the insulating protection device.
The common insulation protection device usually reserves 1 or 2 leading-out ports for the copper bar so as to adapt to the requirement of leading out the copper bar with diversified battery modules. However, when only 1 copper bar lead-out port is reserved on the insulation protection device, the application range of the insulation protection device is narrow; when 2 copper bar leading-out ports are reserved on the insulation protection device, although the insulation protection device can be suitable for a battery module needing to lead out 1 copper bar and 2 copper bars, when the insulation protection device is installed on the battery module needing to lead out 1 copper bar, the rest 1 leading-out ports arranged on the insulation protection device can be directly communicated with the inside and the outside of the insulation protection device in a large area, and the insulation protection device does not have the insulation performance meeting the requirement of insulation protection; therefore, if high-voltage air breakdown occurs in the working environment of the battery pack, the lead-out port which is directly communicated with the inside and the outside of the insulation protection device can become a potential safety hazard.
Disclosure of Invention
In view of the above, the present invention provides an insulation protection device and a battery module.
The invention provides an insulation protection device for carrying out insulation protection on an output electrode of a battery module, wherein the output electrode comprises a guide row and a copper bar, the insulation protection device comprises a protective cover and a base, the base is provided with an inlet for the guide row to extend into and a notch for the copper bar to extend into, the protective cover is used for covering the base, and a detachable stopper capable of shielding the notch is arranged on the protective cover and can be separated from the protective cover under the action of external force.
Optionally, the detachable stopper is connected to the protective cover, and a weakening structure is disposed at a connection position of the detachable stopper and the protective cover, and the detachable stopper can be separated from the protective cover along the weakening structure under an external force.
Optionally, the weakening structure includes a plurality of through holes and/or at least one groove disposed at a connection portion of the detachable stopper and the protective cover.
Optionally, the base includes a base body, the two ends of the base body are provided with protruding ribs extending towards the protective cover, intervals are provided between the protruding ribs, and the inlet and the gap are formed between the protruding ribs.
Optionally, the base is detachably connected to the protective cover, one of the base and the protective cover is provided with a clamping head and/or a hook, and the other is provided with a clamping hole capable of being matched with the clamping head and/or a hooking hole capable of being matched with the hook.
Optionally, the protruding rib is arranged along the length edge of the base body, the hook is arranged on at least one protruding rib, the chuck is arranged on at least one protruding rib, the protective cover is provided with a buckling hole and a hooking hole, the hooking hole is used for hooking the hook in advance of the buckling hole, and the buckling hole is used for being fastened with the chuck.
Optionally, the insulation protection device is provided with three gaps, one of the gaps is located at the opposite side of the inlet, and the other two gaps are located between the inlet and the gaps at the opposite side of the inlet and located at two opposite sides of the inlet.
The invention also provides a battery module, which comprises an end plate positioned at the outermost side of the battery module and is characterized by comprising the insulation protection device, wherein the base is fixedly connected with the end plate.
Optionally, the battery module still includes mounting and the fixed fitting piece that is metal product, the fixed fitting piece is fixed on the base, the mounting be used for penetrating the copper bar, water conservancy diversion arrange with the fixed fitting piece, and with fixed fitting piece threaded connection, will the copper bar with the water conservancy diversion is arranged and is fixed on the base.
Optionally, be equipped with on the end plate be used for with the storage tank of base joint, be equipped with the joint portion that the outside protrusion extends on the side surface of base, one side of joint portion is equipped with the chock joint piece, joint portion with the chock joint piece with the base is even as an organic whole, be equipped with on the lateral wall of storage tank be used for with joint portion complex depressed area, the chock joint piece is used for joint portion with press from both sides after the depressed area cooperation and establish the side surface of base with between the lateral wall of storage tank, make the base with end plate interference fit.
In conclusion, the insulation protection device provided by the invention can flexibly determine the number of exposed notches according to the number of copper bars by arranging the notches and the detachable blocking pieces in one-to-one correspondence with the notches, and the notches which are not required to be used have insulation protection performance due to the blocking of the detachable blocking pieces, so that potential safety hazards are avoided; therefore, the insulation protection device has high universality and the characteristics of high universality and high insulation protection performance, and the development and management cost of the insulation protection device can be reduced.
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 in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a battery module in the related art.
Fig. 2 is a schematic view of an insulation shield assembly mounted on an end plate according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a protective shell and a base according to a first embodiment of the invention.
Fig. 4 is a schematic view illustrating three copper bars mounted on a base according to an embodiment of the present invention.
Fig. 5 is a schematic partial structure diagram of a battery module according to an embodiment of the invention.
Fig. 6 is a first schematic view of an insulation protection device according to a first embodiment of the present invention.
Fig. 7 is a second schematic view of the insulation protection device according to the first embodiment of the invention.
Fig. 8 is a schematic view of a partial structure of an insulation protection device according to an embodiment of the invention.
Fig. 9 is a schematic view illustrating the protection cover and the base after being assembled according to an embodiment of the invention.
Fig. 10 is a schematic view illustrating the engagement portion and the rib in accordance with the first embodiment of the present invention.
Fig. 11 is a schematic view of a mating portion according to an embodiment of the invention.
FIG. 12 is a schematic view of a base according to a second embodiment of the present invention.
Description of the reference numerals
I-a copper bar;
1-battery cell, 2-flow guide row, 3-end plate, 31-accommodating groove, 4-protective cover, 41-hooking hole, 42-buckling hole, 43-matching part, 5-base, 50-base body, 51-inlet, 52-notch, 53-flange, 54-convex rib, 541-hook, 542-clamping head, 55-clamping part, 56-seam plugging block, 57-guide rail, 6-fixing part, 7-detachable blocking part, 8-fixed matching part, 81-annular groove and 9-weakening structure.
Detailed Description
The following detailed description of the present invention is provided in connection with 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 of the present invention 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 a battery module applied to a battery pack, which includes a flow guide row 2 (made of metal), an end plate 3, an insulating protection device, and a battery cell 1 located at the end of the battery module, where the flow guide row 2 protruding to the right from the upper surface of the battery cell 1 is disposed on the battery cell 1, the end plate 3 is located on the right side of the battery cell 1 and is fixed with the insulating protection device thereon, and the insulating protection device is used for insulating protection of an output electrode of the battery module. In this embodiment, the insulation protection device includes a protection cover 4 (made of plastic) and a base 5 (made of plastic) which are detachably connected, the base 5 includes a base body 50, the base body 50 is provided with an inlet 51 and a plurality of notches 52, wherein the inlet 51 is used for allowing the guide bar 2 to extend into the base 5, and the plurality of notches 52 are used for allowing different copper bars I to extend into the base 5 as shown in fig. 4, so that the guide bar 2 and the copper bars I can be connected on the base 5 through a fixing member 6 (in this embodiment, a bolt) made of metal; meanwhile, the protective cover 4 is provided with the detachable blocking pieces 7 which correspond to the notches 52 one by one, and the detachable blocking pieces 7 are arranged on the protective cover 4 and can be detached from the protective cover 4 in a targeted manner according to the arrangement number of the copper bars I; after the protective cover 4 is assembled with the base 5, the removable stopper 7 will block the outside of the gap 52 that is not needed for use, and thus, the protective cover will be insulated.
Therefore, after the protective cover 4 and the base 5 are assembled, the insulation protection device can selectively detach the detachable blocking piece 7 from the protective cover 4 according to the number of the copper bars I and the required notches 52, and the universality is high; and when the number of the copper bars I needing to be arranged is less than that of the notches 52, the notches 52 of the insulation protection device which are not used still have enough insulation protection performance because the detachable blocking piece 7 can block the notches 52.
Specifically, as shown in fig. 5, the end plate 3 in the present embodiment is provided with a dovetail-shaped receiving groove 31 penetrating the end plate 3 in the left-right direction; as shown in fig. 6 and 7, the seat body 50 of the base 5 is substantially rectangular, and the front surface of the lower portion thereof is provided with a flange 53 formed by protruding forward, and the rear surface of the lower portion thereof is provided with another flange 53 formed by protruding backward, so as to form a shape capable of being matched with the receiving groove 31, so that the base can be pushed into the end plate 3 from right to left and be clamped with the end plate 3 in the up-down direction; preferably, the seat body 50 is fixedly connected with the end plate 3 by means of interference fit.
In view of the above, the inlet 51 is disposed at the left portion of the base 5, the number of the notches 52 is three, and the three notches 52 are disposed at the front portion, the rear portion and the right portion of the seat body 50, respectively. In this embodiment, two pairs of plate-shaped ribs 54 are formed to protrude upward from four corners of the upper surface of the seat body 50 along two length sides of the seat body 50, the ribs 54 are spaced apart from each other, and wherein the space between the two ribs 54 on the left front portion and the left rear portion of the base 5 forms the inlet 51, the space between the two ribs 54 on the left rear portion and the right rear portion of the base 5 forms a notch 52, the space between the two ribs 54 on the right rear portion and the right front portion of the base 5 forms a notch 52, and the space between the two ribs 54 on the left front portion and the right front portion of the base 5 forms a notch 52.
In the above, the middle of the upper surface of the seat body 50 is further provided with a matching area formed by sinking from top to bottom, so that the guide bar 2 extends into and covers the matching area through the inlet 51, the copper bar I penetrates into the corresponding notch 52 and is stacked on the guide bar 2, the fixing member 6 penetrates through the copper bar I, the guide bar 2 and the matching area from top to bottom, the copper bar I and the guide bar 2 can be fixed on the base 5, and then the assembly step of covering the protective cover 4 on the base 5 is performed. Preferably, a metal fixing fitting 8 (a nut in the embodiment) as shown in fig. 8 is provided in the fitting area, and the fixing fitting 8 is embedded in the base 5 and is used for being in threaded connection with the fixing member 6, so as to ensure that the fixing member 6 can firmly fix the copper bar I and the guide bar 2 on the base 5. Preferably, the fixed mating part 8 is connected with the base 5 into a whole in an insert molding mode; more preferably, the middle of the fixed mating member 8 is provided with a ring of annular groove 81, so that the raw material for forming the base 5 during insert injection can flow into the annular groove 81 in the cavity of the injection mold and fill up the annular groove, thereby preventing the fixed mating member 8 from being separated from the base 5 under the action of external force, and enhancing the binding force and the connection strength between the fixed mating member 8 and the base 5.
Turning back to fig. 6 and 7, the protection cover 4 in this embodiment is a plate extending along the horizontal direction, the plate is substantially rectangular, the front lower edge, the rear lower edge and the right lower edge of the plate are respectively provided with the aforementioned detachable stoppers 7 which are turned down and extend into a plate shape, and the connection between each detachable stopper 7 and the protection cover 4 is provided with a weakening structure 9, and the weakening structure 9 is a plurality of rectangular through holes arranged in a row at the connection between the detachable stopper 7 and the protection cover 4. Due to the weakening structure 9, the connection between the removable stopper 7 and the protective cover 4 can be broken along the weakening structure 9 under a specific external force (e.g. by pinching the lower end of the removable stopper 7 and rotating outward), so that the removable stopper 7 is separated from the protective cover 4. Of course, the specific form of the weakening structure 9 can be flexibly arranged by those skilled in the art, for example, the weakening structure 9 can also be arranged as a V-shaped groove or a U-shaped groove extending in the front-back direction and transversely across the connection of the removable stopper 7 and the protective cap 4, or as a plurality of grooves spaced apart from each other and opening outwards, and the design principle of such a scheme is that the weakening structure 9 is formed by reducing the thickness of the connection of the removable stopper 7 and the protective cap 4.
Further, the surface area of the removable stopper 7 is configured to cover the gap 52 after the assembly of the protective cover 4 and the base 5 is completed, so as to ensure that the removable stopper 7 can perform a reliable insulation protection function.
Furthermore, in order to realize the detachable connection between the protection cover 4 and the base 5, in this embodiment, a hook 541 or a chuck 542 is further disposed on the rib 54 of the base 5, and a hooking hole 41 and a fastening hole 42 are correspondingly disposed on the protection cover 4. To describe this in more detail, a horse-head shaped hook 541 having a backward opening is provided on the ribs 54 located at the left rear portion and the right rear portion of the base 5, the hook 541 being located at the upper rear end of the rib 54; meanwhile, the convex ribs 54 positioned at the left front part and the right front part of the base 5 are provided with clamping heads 542 with right-angled triangle cross sections, and the clamping heads 542 are formed by extending outwards from the outer surfaces of the convex ribs 54; correspondingly, the left rear part and the right rear part of the protective cover 4 are provided with hooking holes 41 which vertically penetrate through the protective cover, the left front part and the right front part of the protective cover 4 are provided with U-shaped bulges which extend downwards, the open ends of the U-shaped bulges are connected with the protective cover 4 into a whole, the closed ends of the U-shaped bulges extend to the lower part of the protective cover 4, and meanwhile, the middle parts of the U-shaped bulges are vertically penetrated to form buckling holes 42. Therefore, when assembling the protective cover 4 and the base 5, the protective cover 4 is first in a high-back-low posture, the hook 541 penetrates into the hooking hole 41, and then the front part of the protective cover 4 is pressed down, so that the fastening hole 42 is fastened with the chuck 542, and the protective cover 4 and the base 5 can be matched as shown in fig. 9; at this time, the protective cover 4 is covered on the base 5, the convex rib 54 is also in contact with the structures (such as the region a and the region B) of the protective cover 4 located on the periphery of the hooking hole 41 and the fastening hole 42, so as to support the whole protective cover 4, and a space for accommodating the connection between the diversion row 2 and the copper row I is formed between the protective cover 4 and the base 5.
Further, as shown in fig. 10, a matching portion 43 integrally connected with the protective cover 4 is disposed below the hooking hole 41, the matching portion 43 is substantially a hollow rectangular parallelepiped formed by protruding from the lower surface of the protective cover 4 as shown in fig. 11, and the hollow rectangular parallelepiped is communicated with the hooking hole 41, so as to gradually cover the outer side of the rib 54 in the process of matching the hook 541 with the hooking hole 41, thereby ensuring the stability of the matching between the protective cover 4 and the base 5. Furthermore, the surface area of the hollow portion of the matching portion 43 is larger than the surface area of the hooking hole 41, so that the lower surface of the protection cover 4 will block the upper side of the partial structure of the matching portion 43, when the rib 54 contacts the structure of the protection cover 4 located on the periphery of the hooking hole 41 to support the protection cover 4, the rib 54 contacts the lower surface of the protection cover 4 located on the upper side of the matching portion 43, and the purpose of supporting the protection cover 4 is achieved. Of course, the rib 54 may be configured to have a close fit with the mating portion 43.
Furthermore, a concave guide 57 may be provided on the rib 54, and a protrusion (not shown) which can be engaged with the guide 57 and slide along the guide 57 may be correspondingly provided on the engaging portion 43, so as to further facilitate the stability of the assembly process of the protective cover 4 and the base 5.
Alternatively, the clamp 542 and the hook 541 may be disposed on the protection cover 4, and the hooking hole 41 and the fastening hole 42 may be disposed on the base 5, so as to detachably connect the protection cover 4 and the base 5. It should be noted that the number and the form of the chucks 542 and the hooks 541 disposed on the protective cover 4 or the base 5 can be flexibly set by those skilled in the art according to actual needs, for example, in some embodiments, the hooks 541 may be hooked to the hooking holes 41 and also in interference fit with the hooking holes 41, and at this time, whether to set the chuck 542 or not should be flexibly adjustable by those skilled in the art according to actual needs. In summary, the installation steps of the insulation protection device of the present invention include:
s1: pushing the base 5 into the dovetail-shaped containing groove 31 on the end plate 3 to make the guide row 2 extend into the upper part of the base 5 through the inlet 51;
s2: a copper bar I is arranged to cover the guide bar 2 and is fixed on the base 5 together with the guide bar 2 through a fixing piece 6;
s3: selectively breaking the detachable stoppers 7 on the protective cover 4 according to the number and the leading-out direction of the mounted copper bars I;
s4: the base 5 and the protective cover 4 are assembled so that the protective cover 4 is detachably connected to the base 5.
Example two
As shown in fig. 12, the difference between the first embodiment and the second embodiment is that the seat body 50 is in clearance fit with the dovetail-shaped receiving groove 31 of the end plate 3, and a clamping portion 55 is respectively disposed on the front surface and the rear surface of the seat body 50, the clamping portion 55 is a protrusion extending outward from the side surface of the seat body 50, and has a cross section similar to a triangle and is integrally formed with the base 5 by injection molding, and the position of the seat body 50 where the clamping portion 55 is disposed has a width larger than that of the receiving groove 31; correspondingly, the front and rear side walls of the dovetail-shaped receiving groove 31 are provided with recessed areas (not shown) capable of receiving the engaging portions 55; when the base 5 is placed in the end plate 3, the seat body 50 is pushed into the end plate 3 under the action of external force, and the part provided with the clamping portion 55 can continuously move leftwards under the state of interference fit with the end plate 3 until the clamping portion 55 is matched with the recessed area on the containing groove 31; at this time, the base 5 is engaged with the end plate 3 by the flange 53 in the vertical direction, and engaged with the end plate 3 by the engaging portion 55 in the horizontal direction.
Further, a seam plugging block 56 is further disposed on the right side of the clamping portion 55, and the seam plugging block 56 is a protrusion extending outward from the side surface of the seat body 50 and is also integrally formed with the seat body 50 through injection molding; in addition, the width of the position on the base 5 where the caulking block 56 is provided is larger than the width of the accommodating groove 31.
In this embodiment, the height of the caulking block 56 in the front-back direction is smaller than the height of the clamping portion 55 in the front-back direction, when the clamping portion 55 is matched with the recessed area on the end plate 3, the base 5 is pushed in place, and the base 5 can still be in interference fit with the end plate 3 by virtue of the caulking block 56 and cannot easily move in the left-right direction; at this time, the base 5 is restrained in the front, rear, up, down, left and right directions, and has a reliable connection strength with the end plate 3.
In summary, by arranging the notches 52 and the detachable stoppers 7 corresponding to the notches 52 one by one, the insulation protection device provided by the invention can flexibly determine the number of the exposed notches 52 on the copper bars according to the number of the copper bars I, and the notches 52 which are not needed to be used have insulation protection performance due to the blockage of the detachable stoppers 7, so that potential safety hazards are avoided; therefore, the insulation protection device has high universality and the characteristics of high universality and high insulation protection performance, and the development and management cost of the insulation protection device can be reduced.
Further, when the number of the notches 52 on the insulation protection device is three, the insulation protection device can also be applied to a battery module in which 1 copper bar I and 2 copper bars I need to be led out; when three gaps 52 of the insulation protection device are respectively positioned at the opposite side and two sides of the inlet 51, the insulation protection device can meet the requirement of leading out copper bars of the output electrode of most battery modules, and has extremely high universality.
The above description is only for the specific embodiments of the present invention, but the 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 shall cover the 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 protector for carry out insulating protection to the output pole of battery module, the output pole includes water conservancy diversion row (2) and copper bar, its characterized in that, insulating protector includes visor (4) and base (5), be equipped with on base (5) and supply import (51) that water conservancy diversion row (2) stretched into and supply breach (52) that the copper bar stretched into, visor (4) are used for the lid to establish on base (5), and are equipped with removable fender spare (7) that can shelter from breach (52) on it, removable fender spare (7) can with visor (4) separation under the exogenic action.
2. The insulation shield as recited in claim 1, characterized in that said removable stop (7) is connected to said protective cover (4) and a weakening (9) is provided at the connection between said removable stop and said protective cover (4), said removable stop (7) being separable from said protective cover (4) along said weakening (9) by an external force.
3. The insulation shield according to claim 2, characterized in that said weakening structure (9) comprises a plurality of through holes and/or at least one groove provided at the junction of said removable stop (7) and said protective cover (4).
4. The insulation shield as recited in claim 1, characterized in that the base (5) comprises a body (50), wherein the body (50) is provided at both ends with ribs (54) extending towards the protective cover (4), the ribs (54) having a space therebetween, the ribs (54) forming the inlet (51) and the gap (52) therebetween.
5. The insulation protection device according to claim 4, characterized in that the base (5) is detachably connected to the protective cover (4), one of the base (5) and the protective cover (4) is provided with a clamping head (542) and/or a hook (541), and the other is provided with a fastening hole (42) capable of being matched with the clamping head (542) and/or a hooking hole (41) capable of being matched with the hook (541).
6. The insulation protection device of claim 5, wherein the ribs (54) are disposed along the length of the base (50), at least one rib (54) is provided with the hook (541), at least one rib (54) is provided with the chuck (542), the protective cover (4) is provided with a fastening hole (42) and a hooking hole (41), the hooking hole (41) is used for hooking the hook (541) before the fastening hole (42), and the fastening hole (42) is used for fastening the chuck (542).
7. The insulation guard according to claim 1, characterized in that three indentations (52) are provided in the insulation guard, wherein one indentation (52) is located at the opposite side of the inlet opening (51) and two other indentations (52) are located between the inlet opening (51) and its opposite indentation (52) and at two opposite sides of the inlet opening (51).
8. A battery module comprising an end plate (3) located at the outermost side of the battery module, characterized in that it comprises an insulation guard according to any of claims 1-7, and the base (5) is fixedly connected to the end plate (3).
9. The battery module according to claim 8, further comprising a fixing member (6) and a fixing fitting member (8), both of which are made of metal, wherein the fixing fitting member (8) is fixed on the base (5), and the fixing member (6) is used for penetrating the copper bar, the current guiding bar (2) and the fixing fitting member (8) and is in threaded connection with the fixing fitting member (8) to fix the copper bar and the current guiding bar (2) on the base (5).
10. The battery module according to claim 8, wherein the end plate (3) is provided with a receiving groove (31) for being connected with the base (5) in a clamping manner, a clamping portion (55) protruding outward is provided on a side surface of the base (5), a seam plugging block (56) is provided on one side of the clamping portion (55), the clamping portion (55) is connected with the seam plugging block (56) and the base (5) into a whole, a recessed area for being matched with the clamping portion (55) is provided on a side wall of the receiving groove (31), and the seam plugging block (56) is used for being clamped between the side surface of the base (5) and a side wall of the receiving groove (31) after the clamping portion (55) is matched with the recessed area, so that the base (5) and the end plate (3) are in interference fit.
CN202210934859.4A 2022-08-04 2022-08-04 Insulating protector, battery module Pending CN115275537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210934859.4A CN115275537A (en) 2022-08-04 2022-08-04 Insulating protector, battery module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210934859.4A CN115275537A (en) 2022-08-04 2022-08-04 Insulating protector, battery module

Publications (1)

Publication Number Publication Date
CN115275537A true CN115275537A (en) 2022-11-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210934859.4A Pending CN115275537A (en) 2022-08-04 2022-08-04 Insulating protector, battery module

Country Status (1)

Country Link
CN (1) CN115275537A (en)

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