CN212011074U - Power battery pack collecting structure - Google Patents
Power battery pack collecting structure Download PDFInfo
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- CN212011074U CN212011074U CN202020714682.3U CN202020714682U CN212011074U CN 212011074 U CN212011074 U CN 212011074U CN 202020714682 U CN202020714682 U CN 202020714682U CN 212011074 U CN212011074 U CN 212011074U
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- rear end
- bracket
- battery pack
- nickel sheet
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a power battery pack collecting structure, which comprises a battery pack and a collecting circuit board, wherein the battery pack comprises a plurality of battery cell stacking bodies, a front end bracket, a rear end bracket and a middle bracket, the battery cell stacking bodies are directly connected in sequence, and the front end tab stack, the rear end tab stack and the joint tab stack are respectively supported by the front end bracket, the rear end bracket and the middle bracket; mounting grooves are formed in the top surfaces of the front end support, the rear end support and the middle support; the collecting circuit board comprises a flexible circuit board, a front collecting nickel sheet, a rear collecting nickel sheet, a middle collecting nickel sheet and a low-voltage connector; the flexible circuit board is arranged in the mounting groove and is fixedly bonded with the top surface of the battery pack, and the front-end collecting nickel sheet, the rear-end collecting nickel sheet and the middle collecting nickel sheet are respectively and correspondingly electrically connected with the front-end lug stack, the rear-end lug stack and the joint lug stack; the low-voltage connector is fixed on the front end bracket. The utility model discloses a big module of short electric core design can ensure that information collection is accurate, the equipment is fast.
Description
Technical Field
The utility model belongs to the technical field of power battery group collection technique and specifically relates to a power battery group collection structure is related to.
Background
With the continuous popularization of new energy automobiles, the use requirement of power batteries in the new energy automobiles becomes higher and higher. Particularly, the requirement of a user on the continuous mileage of the new energy automobile is continuously improved, and the common new energy automobile serving as a power battery pack of the new energy automobile exceeds 1 meter in both the length direction and the width direction; in the current market, the length of the battery module is generally about 0.3 m, so at least 3 battery modules or even more battery modules need to be arranged in the power battery pack.
Set up a plurality of battery module, all need add fixed knot to every battery module and construct, the equipment is complicated, simultaneously, needs carry out power connection through the power connecting piece of peripheral hardware between two adjacent battery modules. The battery module has more mounting structures, so that not only is the cost increased, but also the overall weight is increased; simultaneously, in single module volume, mounting structure has taken more inner space, causes power battery module, the whole capacity of battery package to reduce, and battery module sets up more in the battery package, and the space is extravagant just more. In addition, because of need set up a plurality of external power connecting pieces and carry out the power connection, lead to internal resistance, cost to increase, improved power battery package in use's internal consumption and cost, current collection structure also can only be suitable for the structure of current short module.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a power battery collection structure realizes the big module of short electric core design, and the equipment is simple and convenient fast, simultaneously, can ensure to gather accurate, the safe and reliable of electric core information.
According to the utility model discloses power battery group collection structure, include:
the battery pack comprises a battery cell stacking body, a front end support, a rear end support and a middle support, wherein the battery cell stacking body is formed by vertically arranging at least two soft-packaged battery cells and sequentially stacking and connecting the soft-packaged battery cells in the left-right direction, the battery cell stacking body is multiple, the battery cell stacking bodies are directly and sequentially connected in the front-rear direction, and a front end pole ear stack at the foremost end, a rear end pole ear stack at the rearmost end and a joint pole ear stack between every two adjacent battery cell stacking bodies are respectively supported and fixed through the front end support, the rear end support and the middle support in a one-to-one correspondence manner; the top surfaces of the front end bracket, the rear end bracket and the middle bracket are all provided with mounting grooves which are smooth in the front-rear direction;
the acquisition circuit board comprises a flexible circuit board, a front end acquisition nickel sheet, a rear end acquisition nickel sheet, a middle acquisition nickel sheet and a low-voltage connector, wherein the front end acquisition nickel sheet, the rear end acquisition nickel sheet and the middle acquisition nickel sheet are arranged at the front end, the rear end and the middle part of the flexible circuit board; the flexible circuit board is arranged in the mounting grooves of the front end support, the rear end support and the middle support so as to be positioned and fixed through the mounting grooves, the flexible circuit board is further bonded and fixed with the top surface of the battery pack by adopting a first structural adhesive, and the front end collecting nickel sheet, the rear end collecting nickel sheet and the middle collecting nickel sheet are respectively and correspondingly electrically connected with the front end pole lug stack, the rear end pole lug stack and the joint pole lug stack; the low-voltage connector is fixed on the front end support.
According to the power battery pack collecting structure provided by the embodiment of the utility model, the battery cell stacking body is formed by at least two soft package battery cells which are vertically arranged and are sequentially stacked and arranged in parallel in the left and right directions, and the adjacent soft package batteries in the battery cell stacking body can be bonded and fixed by adopting the third structural adhesive, so that the quick assembly of the battery cell stacking body can be conveniently realized; a plurality of battery cell stacking bodies in the battery pack are directly connected in the left-right direction through the tab stacks, so that the problem of designing a large module by using short battery cells is solved, the length of the battery pack can be larger than 600mm, and meanwhile, connecting accessories can be reduced, so that the assembly structure of the battery pack is greatly simplified; after the cell stacking bodies are connected, the front end pole lug stack positioned at the foremost end, the rear end pole lug stack positioned at the rearmost end and the joint pole lug stack positioned between every two adjacent cell stacking bodies are respectively supported and fixed through a front end support, a rear end support and an intermediate support in a one-to-one correspondence manner, wherein the front end pole lug stack, the rear end pole lug stack and the joint pole lug stack can be respectively bonded and fixed with the front end support, the rear end support and the intermediate support in a one-to-one correspondence manner by adopting second structural adhesive, so that the rapid assembly between the front end support and the front end pole lug stack, between the rear end support and the rear end pole lug stack and between the intermediate support and the joint pole lug stack can be conveniently realized; the top surfaces of the front end support, the rear end support and the middle support are provided with through mounting grooves, the flexible circuit board is mounted in the mounting grooves of the front end support, the rear end support and the middle support, the flexible circuit board and the top surface of the battery pack are bonded and fixed by adopting first structural adhesive, and the front end collecting nickel sheet, the rear end collecting nickel sheet and the middle collecting nickel sheet are respectively and correspondingly electrically connected with the front end lug stack, the rear end lug stack and the joint lug stack; the low-voltage connector is fixed on the front end support, so that the collection circuit board is reliably mounted, and the accuracy, safety and reliability of the electricity core degree and the voltage data of the collection circuit board are ensured. To sum up, the utility model discloses power battery group collection structure realizes short electric core design big module, and the equipment is simple and convenient fast, simultaneously, can ensure to gather accurate, the safe and reliable of electric core information.
According to an embodiment of the present invention, the front end bracket and the rear end bracket are respectively and correspondingly provided with a through hole for the front end collecting nickel sheet and the rear end collecting nickel sheet to pass through; the front end collecting nickel sheet penetrates through the through holes in the front end support to be electrically connected with the front end pole lug pile, and the rear end collecting nickel sheet penetrates through the through holes in the rear end support to be welded and connected with the rear end pole lug pile.
According to a further embodiment of the present invention, the front end collecting nickel plate is provided with a first positioning hole, and the front end collecting bonding plate is positioned on the front end bracket through the first positioning hole; the rear end collecting nickel sheet is provided with a second positioning hole, and the rear end collecting nickel sheet is positioned on the rear end support through the second positioning hole.
According to the utility model discloses still further embodiment, the front end support the clearing hole is located the front end support the front side of mounting groove, the rear end support the clearing hole is located the rear end support the rear side of mounting groove.
According to a still further embodiment of the present invention, the front end wall top of the passage hole of the front end bracket is formed with a connector groove for mounting the low voltage connector, the low voltage connector being fittingly mounted in the connector groove.
According to the utility model discloses still further embodiment, the acquisition circuit board still includes the connector reinforcing plate, the connector reinforcing plate with the top surface bonding of low pressure connector is fixed and with the front end support is fixed.
According to the utility model discloses still further embodiment, the front end support the left and right sides of clearing hole end wall body top or/and the left and right sides of connector recess end wall body top all is equipped with the reference column, be equipped with on the connector reinforcing plate with reference column complex third locating hole, the connector reinforcing plate passes through the third locating hole with the reference column cooperation is fixed on the top surface of front end support.
According to the utility model discloses an embodiment, the nickel piece is gathered through the switching in middle part gather the piece with junction utmost point ear piles the electricity and connects.
According to the utility model discloses further embodiment, be equipped with the switching on the middle support and gather the piece mounting hole, the switching is gathered the piece and is followed the switching is gathered the piece mounting hole and is passed, just piece one end is gathered in the switching with junction utmost point ear pile electricity is connected, and the other end is located on the top surface of middle support, the middle part gather the nickel piece with the other end electricity of piece is gathered in the switching is connected.
According to the utility model discloses still further embodiment, be equipped with the fourth locating hole on the nickel piece is gathered at the middle part, be equipped with the fifth locating hole on the nickel piece is gathered in the switching, be equipped with the sixth locating hole on the intermediate support, the fourth locating hole the fifth locating hole with the sixth locating hole is just right in vertical direction, passes through the setting element just right the fourth locating hole the fifth locating hole with the sixth locating hole and will the nickel piece is gathered at the middle part the both ends location of piece is gathered in the switching is in on the intermediate support.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a power battery pack collecting structure according to an embodiment of the present invention.
Fig. 2 is an explosion diagram in the power battery pack collecting structure according to the embodiment of the present invention.
Fig. 3 is a schematic diagram of a soft-packaged battery cell in the power battery pack collection structure of the embodiment of the present invention.
Fig. 4 is a schematic partial view of a front end bracket of a battery pack in a power battery pack collecting structure according to an embodiment of the present invention.
Fig. 5 is a schematic view of a portion of a rear end bracket of a battery pack in a power battery pack collecting structure according to an embodiment of the present invention.
Fig. 6 is a schematic partial view of a middle support of a battery pack in a power battery pack collecting structure according to an embodiment of the present invention, wherein the drawing does not show a transfer collecting piece.
Fig. 7 is a partial schematic view of a battery pack middle support in a power battery pack collecting structure according to an embodiment of the present invention, wherein the view illustrates a transfer collecting piece.
Fig. 8 is a schematic cross-sectional view taken along line a-a in fig. 7.
Fig. 9 is a schematic partial view of a nickel sheet collecting position at the front end of a collecting circuit board in a power battery pack collecting structure according to the embodiment of the present invention.
Fig. 10 is a schematic partial view of a nickel sheet collecting position at the rear end of a collecting circuit board in a power battery pack collecting structure according to an embodiment of the present invention.
Fig. 11 is a schematic view of a part of the middle of the collecting circuit board in the collecting structure of the power battery pack according to the embodiment of the present invention for collecting nickel sheets.
Fig. 12 is a partial schematic view of the front bracket of the power battery pack collecting structure according to the embodiment of the present invention, wherein the connector reinforcing plate is not shown in the figure.
Fig. 13 is another partial schematic view of the front bracket of the power battery pack collecting structure according to the embodiment of the present invention, in which the diagram illustrates a connector reinforcing plate.
Fig. 14 is a partial schematic view of a front bracket of a power battery pack collecting structure according to an embodiment of the present invention.
Fig. 15 is a partial schematic view of a rear bracket of a power battery pack collecting structure according to an embodiment of the present invention.
Fig. 16 is a partial schematic view of a middle support of a power battery pack collecting structure according to an embodiment of the present invention.
Reference numerals:
Cell stack 11 soft-packaged cell 111
Switching acquisition sheet mounting hole 19 sixth positioning hole 20
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
A power battery pack collection structure 1000 according to an embodiment of the present invention is described below with reference to fig. 1 to 16.
As shown in fig. 1 to 7 and 12 to 13, the power battery pack 1 collection structure 1000 according to the embodiment of the present invention includes a battery pack 1 and a collection circuit board 2.
Specifically, the battery pack 1 includes a cell stack 11 and a front end support 12, a rear end support 13 and a middle support 14, the cell stack 11 is vertically arranged by at least two soft-packaged cells 111 and is formed by stacking and connecting the soft-packaged cells in parallel in sequence in the left and right directions, the cell stack 11 is multiple, the cell stacks 11 are directly connected in sequence (for example, in series) in the front and rear directions, and are located in a front-end pole ear stack at the foremost end, a rear-end pole ear stack at the rearmost end and a joint pole ear stack located between every two adjacent cell stacks 11 are respectively supported and fixed by the front end support 12, the rear end support 13 and the middle support 14 in a one-to-one correspondence manner; the top surfaces of the front end bracket 12, the rear end bracket 13 and the middle bracket 14 are all provided with mounting grooves 15 which are smooth in the front-rear direction;
the acquisition circuit board 2 comprises a flexible circuit board 21, a front end acquisition nickel sheet 22, a rear end acquisition nickel sheet 23, a middle acquisition nickel sheet 24 and a low-voltage connector 25, wherein the front end acquisition nickel sheet 22, the rear end acquisition nickel sheet 23 and the middle acquisition nickel sheet 24 are arranged at the front end, the rear end and the middle part of the flexible circuit board 21; the flexible circuit board 21 is arranged in the mounting grooves 15 of the front end support 12, the rear end support 13 and the middle support 14 so as to position and fix the flexible circuit board 21 through the mounting grooves 15, the flexible circuit board 21 is further bonded and fixed with the top surface of the battery pack 1 by adopting a first structural adhesive, and the front end collecting nickel sheet 22, the rear end collecting nickel sheet 23 and the middle collecting nickel sheet 24 are respectively and correspondingly electrically connected with the front end tab stack, the rear end tab stack and the joint tab stack; the low-voltage connector 25 is fixed to the front end bracket 12.
It should be noted that the front end tab stack, the rear end tab stack and the joint tab stack may be bonded and fixed with the front end support 12, the rear end support 13 and the middle support 14 by a second structural adhesive in a one-to-one correspondence manner; adjacent soft packages in the cell stacked body 11 can be fixed by bonding with a third structural adhesive.
According to the power battery pack 1 collecting structure 1000 provided by the embodiment of the present invention, since the cell stack 11 is formed by at least two flexible package cells 111 in a vertical arrangement and sequentially stacked and arranged in parallel in the left-right direction, adjacent flexible package cells in the cell stack 11 can be bonded and fixed by using a third structural adhesive, so that the rapid assembly of the cell stack 11 can be conveniently realized; a plurality of battery cell stacked bodies 11 in the battery pack 1 are directly connected (for example, connected in series) in the left-right direction through the tab stacks, so that the problem of designing a large module with short battery cells is solved, the length of the battery pack 1 can be larger than 600mm, and meanwhile, connecting accessories can be reduced, so that the assembly structure of the battery pack 1 is greatly simplified; after the cell stack bodies 11 are connected, the front end pole lug stack positioned at the foremost end, the rear end pole lug stack positioned at the rearmost end and the joint pole lug stacks positioned between every two adjacent cell stack bodies 11 are respectively supported and fixed through the front end support 12, the rear end support 13 and the middle support 14 in a one-to-one correspondence manner, wherein the front end pole lug stack, the rear end pole lug stack and the joint pole lug stacks can be respectively bonded and fixed with the front end support 12, the rear end support 13 and the middle support 14 in a one-to-one correspondence manner by adopting second structural adhesive, so that the rapid assembly between the front end support 12 and the front end pole lug stack, between the rear end support 13 and the rear end pole lug stack and between the middle support 14 and the joint pole lug stack can be conveniently realized; because the top surfaces of the front end support 12, the rear end support 13 and the middle support 14 are provided with the through mounting grooves 15, the flexible circuit board 21 is mounted in the mounting grooves 15 of the front end support 12, the rear end support 13 and the middle support 14, the flexible circuit board 21 is also bonded and fixed with the top surface of the battery pack 1 by adopting a first structural adhesive, and the front end collecting nickel sheet 22, the rear end collecting nickel sheet 23 and the middle collecting nickel sheet 24 are respectively and correspondingly electrically connected with the front end tab stack, the rear end tab stack and the joint tab stack; the low-voltage connector 25 is fixed on the front end support 12, so that the collection circuit board 2 is reliably mounted, and accurate, safe and reliable Chua Jie of the electricity core degree and voltage data of the collection circuit board 2 can be ensured. To sum up, the utility model discloses 1 collection structure 1000 of power battery group realizes short electric core design big module, and the equipment is simple and convenient fast, simultaneously, can ensure to gather accurate, the safe and reliable of electric core information.
As shown in fig. 4 and 5, according to an embodiment of the present invention, the front end bracket 12 and the rear end bracket 13 are respectively provided with a through hole 16 for passing the front end collecting nickel plate 22 and the rear end collecting nickel plate 23; the front collecting nickel sheet 22 passes through the through hole 16 on the front bracket 12 to be electrically connected with the front pole lug stack, and the rear collecting nickel sheet 23 passes through the through hole 16 on the rear bracket 13 to be welded with the rear pole lug stack. It will be appreciated that the mounting of the front and rear harvesting nickel plates 22, 23 is facilitated by the provision of the through holes 16 in the front and rear brackets 12, 13.
As shown in fig. 9 to 10 and 14 to 15, according to a further embodiment of the present invention, the front end collecting nickel plate 22 is provided with a first positioning hole 221, and the front end collecting adhesive sheet is positioned on the front end bracket 12 through the first positioning hole 221; the rear end collecting nickel sheet 23 is provided with a second positioning hole 231, and the rear end collecting nickel sheet 23 is positioned on the rear end support 13 through the second positioning hole 231. It can be understood that the first positioning hole 221 is formed in the front end collecting nickel plate 22, so that the front end collecting nickel plate 22 can be conveniently positioned on the front end support 12, the front end collecting nickel plate 22 and the front end electrode tab stack can be conveniently and well electrically connected, and the quality of electrical connection is improved; through set up second locating hole 231 on nickel piece 23 is gathered to the rear end, be convenient for gather nickel piece 23 with the rear end and fix a position on rear end support 13, be favorable to being convenient for rear end to gather nickel piece 23 and the better ground electricity of rear end utmost point ear heap and be connected, improve the quality of electricity connection. Here, the electrical connection between the front end collecting nickel plate 22 and the front end tab stack and the electrical connection between the rear end collecting nickel plate 23 and the rear end tab stack may be by riveting, stud screw connection, or by welding, such as laser welding or ultrasonic welding.
As shown in fig. 4 to 5, according to still further embodiments of the present invention, the passing hole 16 of the front bracket 12 is located at the front side of the mounting groove 15 of the front bracket 12, and the passing hole 16 of the rear bracket 13 is located at the rear side of the mounting groove 15 of the rear bracket 13. Therefore, the front-end collecting nickel sheet 22 and the rear-end collecting nickel sheet 23 can be conveniently installed, and the assembly speed can be improved.
As shown in fig. 4, 9 and 13, according to a still further embodiment of the present invention, a connector recess 17 for mounting a low-voltage connector 25 is formed at the top of the front end wall of the passing hole 16 of the front end bracket 12, and the low-voltage connector 25 is fittingly mounted in the connector recess 17. By providing the connector groove 17, the low-voltage connector 25 can be positioned and fixed conveniently, which is beneficial to improving the assembly speed.
As shown in fig. 9 and 13, according to a still further embodiment of the present invention, the collecting circuit board 2 further includes a connector reinforcing plate 27, and the connector reinforcing plate 27 is fixed to the top surface of the low voltage connector 25 by bonding and is fixed to the front end bracket 12. It can be understood that the connector reinforcing plate 27 is fixed to the top surface of the low-voltage connector 25 by bonding, so that the connector is initially fixed to the low-voltage connector 25, and then the connector reinforcing plate 27 is fixed to the front bracket 12, so that the connector reinforcing plate 27 can reliably fix the low-voltage connector 25 in the connector groove 17, thereby preventing the displacement of the bottom-pressure connector, facilitating the assembly and increasing the assembly speed.
As shown in fig. 4, 9 and 13, according to a further embodiment of the present invention, the positioning posts 18 are disposed on the top of the left and right end walls of the through hole 16 of the front bracket 12 and/or the top of the left and right end walls of the connector groove 17, the connector reinforcing plate 27 is provided with a third positioning hole 271 engaged with the positioning post 18, and the connector reinforcing plate 27 is engaged with the positioning post 18 through the third positioning hole 271 and fixed on the top surface of the front bracket 12. It can be understood that the connector reinforcing plate 27 and the top surface of the low-voltage connector 25 are fixed in a bonding manner so that the connector is preliminarily fixed on the low-voltage connector 25, and then the connector reinforcing plate 27 is fixed to the front end bracket 12 through the cooperation of the positioning column 18 and the third positioning hole 271, so that the connector reinforcing plate 27 can reliably fix the low-voltage connector 25 in the connector groove 17, thereby preventing the displacement of the bottom-pressure connector, facilitating the assembly and achieving a high assembling speed.
It should be noted that the positioning column 18 may be a hot-melt positioning column 18, and after the connector reinforcing plate 27 is sleeved on the hot-melt positioning column 18 through the positioning hole, the connector is riveted by hot-melting the upper end of the hot-melt positioning column 18; or the upper end of the positioning column 18 can be provided with threads, and the connector reinforcing plate 27 is screwed up at the upper end of the positioning column 18 by adopting a nut to realize the screw connection and fixation of the connector after being sleeved on the positioning column 18 through the positioning hole.
As shown in fig. 6 to 8 and 16, according to an embodiment of the present invention, the middle collecting nickel plate 24 is electrically connected to the tab stack at the joint through the adapting collecting plate 3. It can be understood that the middle collecting nickel sheet 24 can be conveniently electrically connected with the lug stack at the joint by switching the collecting sheet 3.
As shown in fig. 6-7, according to the utility model discloses further embodiment is equipped with the switching on the middle support 14 and gathers piece mounting hole 19, and the switching is gathered piece 3 and is gathered piece mounting hole 19 from the switching and pass, and 3 one end of switching is gathered piece and is piled the electricity with the junction utmost point ear and be connected, and the other end is located the top surface of middle support 14, and the middle part is gathered nickel piece 24 and is gathered the other end electricity of piece 3 and be connected with the switching. Therefore, the installation is convenient, and the rapid assembly is favorably realized.
Preferably, the portion of the relay collection piece 3 passing through the relay collection piece mounting hole 19 is attached to the wall of the relay collection piece mounting hole 19. Therefore, the switching acquisition sheet 3 can be directly clamped on the hole wall of the switching acquisition sheet mounting hole 19 after penetrating through the switching acquisition sheet mounting hole 19, the other end of the switching acquisition sheet 3 is attached to the top surface of the support, the mounting is convenient and reliable, and the quick assembly is favorably realized.
As shown in fig. 6 to 8 and fig. 11, according to the utility model discloses still further embodiment, be equipped with fourth locating hole 241 on the nickel piece 24 is gathered at the middle part, be equipped with fifth locating hole 31 on the nickel piece is gathered in the switching, be equipped with sixth locating hole 20 on the middle support 14, fourth locating hole 241, fifth locating hole 31 and sixth locating hole 20 are just right in vertical direction, pass just right fourth locating hole 241, fifth locating hole 31 and sixth locating hole 20 through the setting element and gather nickel piece 24 with the middle part, the both ends location of piece 3 is gathered in the switching is on middle support 14. Therefore, the installation is convenient, and the rapid assembly is favorably realized.
It should be noted that the middle collecting nickel plate 24 and the tab stack at the connection point may be connected by riveting or stud screw, for example, the positioning element may be directly connected by riveting or stud screw, or may be welded by laser welding or ultrasonic welding.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A power battery pack harvesting structure (1000), comprising:
the battery pack (1) comprises a battery cell stacking body (11), a front end support (12), a rear end support (13) and a middle support (14), wherein the battery cell stacking body (11) is formed by vertically arranging at least two soft package battery cells (111) and sequentially stacking, arranging and connecting the soft package battery cells in the left-right direction, the battery cell stacking body (11) is multiple, the battery cell stacking body (11) is directly and sequentially connected in the front-back direction, and the battery cell stacking body (11) is located at the foremost front end, the rearmost rear end pole ear stack and the connection part pole ear stacks between the battery cell stacking bodies (11) which are adjacent in pairs are respectively and correspondingly supported and fixed through the front end support (12), the rear end support (13) and the middle support (14); the top surfaces of the front end bracket (12), the rear end bracket (13) and the middle bracket (14) are all provided with mounting grooves (15) which are smooth in the front-rear direction;
the acquisition circuit board (2), the acquisition circuit board (2) comprises a flexible circuit board (21), a front end acquisition nickel sheet (22), a rear end acquisition nickel sheet (23), a middle acquisition nickel sheet (24) and a low-voltage connector (25), wherein the front end acquisition nickel sheet, the rear end acquisition nickel sheet and the middle acquisition nickel sheet are arranged at the front end, the rear end and the middle part of the flexible circuit board (21); the flexible circuit board (21) is installed in the installation grooves (15) of the front end support (12), the rear end support (13) and the middle support (14) to be positioned and fixed through the installation grooves, the flexible circuit board (21) is further bonded and fixed with the top surface of the battery pack (1) through first structural adhesive, and the front end collecting nickel sheet (22), the rear end collecting nickel sheet (23) and the middle collecting nickel sheet (24) are respectively and correspondingly electrically connected with the front end pole lug stack, the rear end pole lug stack and the joint pole lug stack; the low-voltage connector (25) is fixed on the front end bracket (12).
2. The power battery pack collecting structure (1000) according to claim 1, wherein the front end bracket (12) and the rear end bracket (13) are respectively provided with a through hole (16) for the front end collecting nickel sheet (22) and the rear end collecting nickel sheet (23) to pass through; the front end collecting nickel sheet (22) penetrates through the through holes (16) in the front end support (12) to be electrically connected with the front end pole lug stack, and the rear end collecting nickel sheet (23) penetrates through the through holes (16) in the rear end support (13) to be welded and connected with the rear end pole lug stack.
3. The power battery pack collection structure (1000) according to claim 2, wherein the front end collection nickel plate (22) is provided with a first positioning hole (221), and the front end collection adhesive plate is positioned on the front end bracket (12) through the first positioning hole (221); the rear-end collecting nickel sheet (23) is provided with a second positioning hole (231), and the rear-end collecting nickel sheet (23) is positioned on the rear-end support (13) through the second positioning hole (231).
4. The power battery pack collection structure (1000) according to claim 3, wherein the passing hole (16) of the front end bracket (12) is located on a front side of the mounting groove (15) of the front end bracket (12), and the passing hole (16) of the rear end bracket (13) is located on a rear side of the mounting groove (15) of the rear end bracket (13).
5. The power battery pack collection structure (1000) according to claim 4, wherein a connector groove (17) for mounting the low-voltage connector (25) is formed at a top of a front end wall of the front end bracket (12) passing through the hole (16), the low-voltage connector (25) being fittingly mounted in the connector groove (17).
6. The power battery pack collection structure (1000) according to claim 5, wherein the collection circuit board (2) further comprises a connector reinforcement plate (27), the connector reinforcement plate (27) being adhesively secured with the top surface of the low voltage connector (25) and secured with the front bracket (12).
7. The power battery pack collection structure (1000) according to claim 6, wherein the top of the left and right end walls of the through hole (16) of the front bracket (12) or/and the top of the left and right end walls of the connector groove (17) are provided with positioning posts (18), the connector reinforcing plate (27) is provided with a third positioning hole (271) matched with the positioning posts (18), and the connector reinforcing plate (27) is matched with the positioning posts (18) through the third positioning hole (271) and fixed on the top surface of the front bracket (12).
8. The power battery pack harvesting structure (1000) of claim 1, wherein the middle harvesting nickel plate (24) is electrically connected to the junction tab stack by an interposer harvesting plate (3).
9. The power battery pack collection structure (1000) according to claim 8, wherein the middle support (14) is provided with a through collection sheet mounting hole (19), the through collection sheet (3) passes through the through collection sheet mounting hole (19), one end of the through collection sheet (3) is electrically connected with the junction tab stack, the other end of the through collection sheet is located on the top surface of the middle support (14), and the middle collection nickel sheet (24) is electrically connected with the other end of the through collection sheet (3).
10. The power battery pack collecting structure (1000) according to claim 9, wherein a fourth positioning hole (241) is formed in the middle collecting nickel plate (24), a fifth positioning hole (31) is formed in the transferring collecting nickel plate, a sixth positioning hole (20) is formed in the middle support (14), the fourth positioning hole (241), the fifth positioning hole (31) and the sixth positioning hole (20) are vertically opposite, and two ends of the middle collecting nickel plate (24) and the transferring collecting plate (3) are positioned on the middle support (14) by penetrating through the opposite fourth positioning hole (241), the fifth positioning hole (31) and the sixth positioning hole (20).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020714682.3U CN212011074U (en) | 2020-04-30 | 2020-04-30 | Power battery pack collecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020714682.3U CN212011074U (en) | 2020-04-30 | 2020-04-30 | Power battery pack collecting structure |
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| CN212011074U true CN212011074U (en) | 2020-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584779A (en) * | 2020-04-30 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Power battery pack collecting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584779A (en) * | 2020-04-30 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Power battery pack collecting structure |
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