Battery connection module

Abstract

The invention discloses a battery connection module which is used for connecting a battery array. The battery array comprises a plurality of batteries; end plates are arranged on the outer side of the battery array, and cooling plates are arranged between batteries of the battery array. The battery connection module comprises a plurality of busbars, a sampling assembly and a temperature collecting assembly. The plurality of busbars are used for connecting a plurality of batteries; the temperature collecting assembly is assembled on the end plate and used for collecting the temperature of the cooling plate. The temperature collection assembly comprises a temperature collection flexible circuit board, a support bracket, a first temperature sensor and a heat conduction pad; the supporting bracket is provided with a fixed seat, a supporting seat and a connecting arm connected between the fixed seat and the supporting seat; the fixed seat is fixed on the end plate; the supporting seat extends into the inner surface of the end plate and faces the cooling plate; the temperature collection flexible circuit board is provided with a body part, a mounting end and an output end, and the mounting end is arranged on the supporting seat; the output end is connected to the sampling assembly; the first temperature sensor is mounted at the mounting end; the heat conduction pad is located between the installation end and the cooling plate.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery connection module. Background Art

[0002] China Utility Model Patent Publication No. CN210136983U discloses a battery module, including multiple batteries, a circuit board, a temperature sampling member and a connector. The circuit board is arranged above the top cover plates of the multiple batteries, and the temperature sampling member is fixed to the circuit board and electrically connected to the circuit board. The connector is located between the circuit board and the top cover plates of the multiple batteries in the up and down direction, and the connector is fixed to the top cover plates of the corresponding batteries and supports the circuit board.

[0003] When measuring the temperature of a battery module in the prior art, the temperature needs to be transferred from the top cover of the battery through the connector of the connecting element and the circuit board in sequence before reaching the temperature sampling component. It can be clearly seen that the temperature collection path of the prior art is relatively long, and the temperature sampling component is elevated by the connector and separated from the top cover by a space and distance. Moreover, the structure of the temperature sampling in the prior art is only suitable for collecting the temperature of the top cover of the battery. Summary of the invention

[0004] Therefore, an object of the present application is to provide a battery connection module that can solve at least one disadvantage of the prior art.

[0005] The battery connection module of the embodiment of the present application is used to connect a battery array; the battery array includes a plurality of batteries; an end plate is provided on the outside of the battery array, and a cooling plate is provided between the batteries of the battery array; the battery connection module includes:

[0006] A plurality of bus bars, used for connecting a plurality of the batteries in the battery array;

[0007] Sampling components;

[0008] A temperature sampling component is assembled on the end plate to collect the temperature of the cooling plate; the temperature sampling component includes a temperature sampling flexible circuit board, a support bracket, a first temperature sensor and a thermal pad; the support bracket has a fixed seat, a support seat and a connecting arm connected between the fixed seat and the support seat; the fixed seat is fixed on the end plate, and the support seat extends into the inner surface of the end plate and faces the cooling plate; the temperature sampling flexible circuit board has a main body, a mounting end and an output end, and the mounting end is arranged on the support seat; the output end is connected to the sampling component; the first temperature sensor is installed on the mounting end; the thermal pad is located between the mounting end and the cooling plate.

[0009] According to some embodiments of the present application, the mounting end of the temperature-sensitive flexible circuit board is located between the thermal pad and the support base of the support bracket.

[0010] According to some embodiments of the present application, the first temperature sensor is located between the mounting end and the support base.

[0011] According to some embodiments of the present application, the support base has a receiving groove for receiving the first temperature sensor.

[0012] According to some embodiments of the present application, the temperature collection component further includes a heat conductive sheet, and the heat conductive sheet is located between the thermal pad and the mounting end.

[0013] According to some embodiments of the present application, the support seat of the support bracket also has a first retaining column, and the first retaining column passes through and retains the mounting end and the heat conductive sheet.

[0014] According to some embodiments of the present application, the mounting end has a first hole, and the heat conductive sheet has a second hole corresponding to the position of the first hole;

[0015] The first retaining column has a first interference rib, and the first interference rib passes through the first hole and is interfered and fixed with the second hole.

[0016] According to some embodiments of the present application, the first temperature sensor is located between the mounting end of the temperature-sensitive flexible circuit board and the thermal pad.

[0017] According to some embodiments of the present application, the temperature collection component further includes a protection frame, which is located between the thermal pad and the mounting end, and has a first frame opening surrounding the first temperature sensor.

[0018] According to some embodiments of the present application, the thermal pad is attached to the mounting end and covers the first temperature sensor, and the thermal pad passes through the first frame opening.

[0019] According to some embodiments of the present application, the protection frame further has a second retaining column, which passes through and retains the mounting end and the support seat.

[0020] According to some embodiments of the present application, the mounting end has a first hole, and the support base has a third hole;

[0021] The second retaining column is provided with a second interference rib, and the second interference rib passes through the first hole and is interfered and fixed with the third hole.

[0022] According to some embodiments of the present application, the support seat is located between the mounting end and the thermal pad.

[0023] According to some embodiments of the present application, the first temperature sensor is located between the mounting end and the support base.

[0024] According to some embodiments of the present application, the support base has a second frame opening surrounding the first temperature sensor, the thermal pad is attached to the mounting end and covers the first temperature sensor, and the thermal pad passes through the second frame opening.

[0025] According to some embodiments of the present application, the output end of the temperature sampling flexible circuit board is provided with a connector for connecting to a mating connector of the sampling component.

[0026] According to some embodiments of the present application, a foldable portion that can be extended and extended is provided between the main body portion and the output end of the temperature-sensitive flexible circuit board.

[0027] According to some embodiments of the present application, the end plate is provided with a connector temporary storage seat, and the connector of the soft and flexible circuit board can be positioned on the connector temporary storage seat.

[0028] According to some embodiments of the present application, the output end of the temperature sampling flexible circuit board has an exposed conductive finger for being plugged into a connector for a flexible circuit board of the sampling component.

[0029] According to some embodiments of the present application, the temperature-sensitive flexible circuit board further includes a fixed end, and the end plate has a fixing column that cooperates to fix the fixed end.

[0030] According to some embodiments of the present application, the fixed end has a button hole, and the fixed column has a buckle block that matches the button hole.

[0031] According to some embodiments of the present application, the fixing seat has a buckle pin, which is inserted into and buckled into the buckle hole of the end plate, and the supporting seat extends from the outside to the inside through the window of the end plate and into the inner surface of the end plate.

[0032] According to some embodiments of the present application, the buckle pins are configured as a pair, and the ends of the buckle pins have convex buckle blocks, and the inner wall of the buckle hole has a buckle groove for buckling the convex buckle block.

[0033] According to some embodiments of the present application, the supporting bracket has a supporting base, two connecting arms located on both sides of the supporting base, and two fixing bases.

[0034] According to some embodiments of the present application, the supporting bracket has a supporting seat, a fixing seat, and a connecting arm located between the supporting seat and the fixing seat.

[0035] According to some embodiments of the present application, the fixing seat has an assembly hole for being assembled on the end plate.

[0036] According to some embodiments of the present application, the temperature collection component further includes a cover for covering the first temperature sensor.

[0037] One embodiment of the above application has at least the following advantages or beneficial effects:

[0038] In the battery connection module of the embodiment of the present application, the support seat of the support bracket extends into the inner surface of the end plate and faces the cooling plate, the mounting end of the temperature sampling flexible circuit board is arranged on the support seat, the first temperature sensor is installed on the mounting end, and the thermal pad is located between the mounting end and the cooling plate, so that the first temperature sensor of the temperature sampling component can be coupled to the cooling plate at the shortest distance to collect the temperature of the cooling plate, shorten the temperature sampling transmission path, improve the sampling response rate during the sampling process, and at the same time greatly reduce the difference between the sampling temperature and the temperature of the cooling plate, thereby improving the sampling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Shown is a partial structural schematic diagram of a battery pack.

[0040] Figure 2 Shown is a schematic diagram of an exploded view of a battery, a cooling plate, an end plate, a sampling flexible circuit board, an integrated circuit board and a temperature sampling component of the first embodiment of the present application.

[0041] Figure 3 What is shown is a schematic diagram of the decomposition of the temperature collection component and the end plate of the first embodiment of the present application at one viewing angle, wherein the viewing angle is from front to back.

[0042] Figure 4 What is shown is a schematic diagram of the decomposition of the temperature collection component and the end plate of the first embodiment of the present application from another viewing angle, wherein the viewing angle is from the back to the front.

[0043] Figure 5 Shown is a schematic diagram of the decomposition of the temperature collection component of the first embodiment of the present application at one viewing angle.

[0044] Figure 6 Shown is a schematic diagram of the decomposition of the temperature collection component of the first embodiment of the present application from another perspective.

[0045] Figure 7 yes Figure 5 A local enlarged view of point X1 in the middle.

[0046] Figure 8 Shown is a partial front view of the temperature collection component of the first embodiment of the present application after being installed on the end plate.

[0047] Fig. 9 It shows Figure 8 Section view along the AA cutting line.

[0048] Fig.10 It shows Figure 8 Sectional view along the BB cutting line.

[0049] Fig.11 It shows Fig.10 A local enlarged view of the X2 point in the middle.

[0050] Fig.12 The diagram shows a first embodiment of the present application in which the connector using a soft flexible circuit board is positioned on a connector temporary storage seat of an end plate.

[0051] Fig.13 It shows Figure 1 A partial enlarged view of X3 in the middle, where the connector using the flexible circuit board is not positioned on the connector temporary storage seat of the end plate.

[0052] Fig.14 Shown is a schematic diagram of the exploded view of the temperature collection assembly and the end plate of the second embodiment of the present application.

[0053] Fig.15 Shown is a schematic diagram of the decomposition of the temperature collection component of the second embodiment of the present application.

[0054] Fig.16 Shown is a partial front view of the temperature collection component of the second embodiment of the present application after being installed on the end plate.

[0055] Fig.17 It shows Fig.16 Sectional view along CC cutting line.

[0056] Fig.18 It shows Fig.16 Sectional view along the DD cutting line.

[0057] Fig.19 Shown is a schematic diagram of a protection frame.

[0058] Fig. 20 Shown is a schematic diagram of the decomposition of the temperature collection component of the third embodiment of the present application.

[0059] The reference numerals are described as follows:

[0060] 1. Battery Pack

[0061] 11. Battery Array

[0062] 111. Battery Pack

[0063] 111a. Battery

[0064] 111b, Electrode

[0065] 112. Battery row

[0066] 12. Battery connection module

[0067] 13. End plate

[0068] 13a. Inner surface

[0069] 13b. External surface

[0070] 131. Connector temporary storage seat

[0071] 132. Fixed column

[0072] 1321, buckle block

[0073] 133. Buckle hole

[0074] 1331, buckle slot

[0075] 134. Window

[0076] 135. Boss

[0077] 14. Cooling plate

[0078] 200. Bus

[0079] 300, Carrying plate

[0080] 400, Sampling Components

[0081] 410. Sampling Flexible Circuit Board

[0082] 411. Flexible circuit board

[0083] 420. Integrated flexible circuit board

[0084] 421. Output

[0085] 421a, output electrical connector

[0086] 422, Transfer Department

[0087] 423. Steering

[0088] 424, Mating connector

[0089] 430, Connector

[0090] 440, Conductive sheet

[0091] 450, Arm Flexible Circuit Board

[0092] 451. Second temperature sensor

[0093] 500. Temperature collection components

[0094] 510. Use soft and flexible circuit boards

[0095] 511. Ontology Department

[0096] 512, Installation end

[0097] 5121, the first hole

[0098] 513. Output

[0099] 5131、Connector

[0100] 5132, Conductive Fingers

[0101] 514, Folding Department

[0102] 515, Fixed end

[0103] 5151, button hole

[0104] 520, support bracket

[0105] 521, fixed seat

[0106] 5211, buckle pin

[0107] 5212, convex buckle block

[0108] 5213, assembly hole

[0109] 522, support seat

[0110] 5221、Accommodation tank

[0111] 5222, first retaining column

[0112] 5223, first interference rib

[0113] 5224, the third hole

[0114] 5225, second frame

[0115] 523. Connecting Arm

[0116] 530. First temperature sensor

[0117] 540, Thermal pad

[0118] 550, Thermal Conductive Sheet

[0119] 551, Second Hole

[0120] 560, protection frame

[0121] 561, first frame

[0122] 562, Second Retaining Column

[0123] 563. Second interference rib

[0124] 570, Cap

[0125] D1, front and back direction

[0126] D2. Up and down direction

[0127] D3, left and right direction DETAILED DESCRIPTION

[0128] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0129] like Figure 1 and Figure 2 As shown, the battery pack 1 of the embodiment of the present application includes a battery array 11 composed of a plurality of batteries 111a, a battery connection module 12, an end plate 13 and a cooling plate 14. The battery connection module 12 is used to connect the battery array 11, the end plate 13 is arranged on the front and outside of the battery array 11 in the front-to-back direction D1 (the direction indicated by the arrow is the front, and the reverse direction is the rear), and the cooling plate 14 is arranged between the batteries 111a of the battery array 11.

[0130] It is understood that the terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components that are inherent to these processes, methods, products, or devices.

[0131] The battery array 11 can be divided into a plurality of battery groups 111 arranged side by side, and each battery group 111 includes a plurality of batteries 111a arranged in rows and columns. In the embodiment of the present application, the battery array 11 is divided into four battery groups 111, but the present invention is not limited thereto.

[0132] The shape of each battery 111a can be cylindrical, rectangular, etc. In the embodiment of the present application, the shape of each battery 111a is cylindrical. The electrode 111b (including the positive electrode and the negative electrode) of each battery 111a is located at the upper end of the up and down direction D2 (the direction indicated by the arrow is up, and the reverse direction is down) of the battery 111a. Each battery group 111 can be divided into a plurality of battery rows 112, each battery row 112 includes a plurality of batteries 111a arranged along the left and right direction D3 (the direction indicated by the arrow is left, and the reverse direction is right), and a plurality of battery rows 112 are arranged side by side along the front and rear direction D1. In addition, the batteries 111a in two adjacent battery rows 112 of each battery group 111 are staggered, that is, the position between two adjacent batteries 111a in one battery row 112 corresponds to a battery 111a in another battery row 112.

[0133] In the embodiment of the present application, a cooling plate 14 is provided between every two adjacent battery rows 112 in each battery group 111 , and a cooling plate 14 is also provided on the front outer side of the battery group 111 .

[0134] In one embodiment, the cooling plate 14 is wavy, and the curvature of the wavy shape matches the curvature of the outer circumference of the cylindrical battery 111 a, so that the cooling plate 14 can fit more closely with the outer circumference of each battery 111 a, thereby improving the cooling effect.

[0135] The battery 111 a may be a lithium ion battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like.

[0136] Please continue reading Figure 1 and Figure 2 The battery connection module 12 includes a plurality of busbars 200, a plurality of carrier plates 300, a sampling assembly 400 and a temperature sampling assembly 500. The plurality of carrier plates 300 are disposed at the upper end of the battery array 11 and between the plurality of busbars 200, the plurality of busbars 200 are disposed on the plurality of carrier plates 300, and the plurality of busbars 200 are used to connect the electrodes 111b of the plurality of batteries 111a of the battery array 11.

[0137] The sampling component 400 is used to collect and output the status and data of the battery 111a. The sampling component 400 includes a sampling flexible circuit board 410 and an integrated flexible circuit board 420. In the embodiment of the present application, the number of the sampling flexible circuit boards 410 is four, and the number of the integrated flexible circuit boards 420 can be two, but is not limited thereto.

[0138] The sampling flexible circuit board 410 extends along the length direction from the back to the front, and the sampling flexible circuit board 410 is in a long strip configuration and extends in a strip-shaped continuous convex and concave waveform along the length direction. The front end of the sampling flexible circuit board 410 is bent to the outer surface of the end plate 13 to be connected to the integrated flexible circuit board 420. In one embodiment, the sampling flexible circuit board 410 and the integrated flexible circuit board 420 can be connected through a connector 430.

[0139] Each sampling flexible circuit board 410 may include two or more flexible circuit boards 411 overlapped with each other.

[0140] like Figure 1 As shown, the integrated flexible circuit board 420 includes an output portion 421 located on the top surface of the battery array 11, a transition portion 422 located on the outer surface of the end plate 13, and a turning portion 423 located between the output portion 421 and the transition portion 422. The output portion 421 is provided with a plurality of output electrical connectors 421a, at least two sampling flexible circuit boards 410 are connected to one integrated flexible circuit board 420, and then the integrated flexible circuit board 420 is turned from the front side surface to the top surface through the folding structure of the integrated flexible circuit board 420, so that the plurality of output electrical connectors 421a can be located on the same top surface and close to each other in a compact arrangement mode, and the layout on different planes is realized through these flexible circuit boards.

[0141] like Figure 2 As shown, the sampling flexible circuit board 410 is attached with a plurality of conductive sheets 440 and at least one arm flexible circuit board 450. The sampling component 400 is connected to the bus 200 as a collection point, and the sampling flexible circuit board 410 can be connected to the bus 200 through a plurality of conductive sheets 440, and the conductive sheets 440 are electrically connected to the lines of the sampling flexible circuit board 410 for electrical collection (for example, collecting voltage, current or other electrical characteristics). A second temperature sensor 451 can be provided on the arm flexible circuit board 450, and the second temperature sensor 451 is placed on the bus 200 through the arm flexible circuit board 450 for temperature collection. The second temperature sensor 451 can be a negative temperature coefficient thermistor (Negative Temperature Coefficient, abbreviated as NTC).

[0142] First embodiment

[0143] like Figures 3 to 6As shown, the temperature sampling component 500 is assembled on the end plate 13 to collect the temperature of the cooling plate 14. The temperature sampling component 500 of the first embodiment of the present application includes a temperature sampling flexible circuit board 510, a support bracket 520, a first temperature sensor 530 and a thermal pad 540. The support bracket 520 has a fixing seat 521, a supporting seat 522 and a connecting arm 523 connected between the fixing seat 521 and the supporting seat 522. The fixing seat 521 is fixed on the end plate 13, and the supporting seat 522 extends into the inner surface of the end plate 13 and faces the cooling plate 14. The temperature sampling flexible circuit board 510 has a body 511, a mounting end 512 and an output end 513, and the mounting end 512 is arranged on the supporting seat 522. The output end 513 is connected to the sampling component 400, the first temperature sensor 530 is installed on the mounting end 512, and the thermal pad 540 is located between the mounting end 512 and the cooling plate 14.

[0144] In the battery connection module 12 of the embodiment of the present application, the support base 522 of the support bracket 520 extends into the inner surface of the end plate 13 and faces the cooling plate 14, the mounting end 512 of the temperature sampling flexible circuit board 510 is arranged on the support base 522, the first temperature sensor 530 is installed on the mounting end 512, and the thermal pad 540 is located between the mounting end 512 and the cooling plate 14, so that the first temperature sensor 530 of the temperature sampling component 500 can be coupled to the cooling plate 14 at the closest distance to collect the temperature of the cooling plate 14, shorten the temperature collection transmission path, and improve the sampling response rate during the sampling process. At the same time, the difference between the sampling temperature and the temperature of the cooling plate 14 is greatly reduced, thereby improving the sampling accuracy.

[0145] In one embodiment, the support bracket 520 can be made of an insulating material, for example, the support bracket 520 is made of a plastic material. The thermal pad 540 has good viscosity, elasticity, good compression performance and excellent thermal conductivity. When the fixing seat 521 of the support bracket 520 is fixed on the end plate 13, and the support seat 522 extends into the inner surface of the end plate 13 and faces the cooling plate 14, the thermal pad 540 can fit well with the cooling plate 14, without damaging the cooling plate 14, and has good thermal conductivity.

[0146] In the embodiment of the present application, the support bracket 520 has a support base 522, two connecting arms 523 and two fixing bases 521 located on both sides of the support base 522. The support base 522, the two connecting arms 523 and the two fixing bases 521 generally form a "X" shape.

[0147] The temperature collection component 500 further includes a cover 570 for covering the first temperature sensor 530. It is understandable that the cover 570 may be a sealant, such as epoxy resin. The cover 570 is used to seal the first temperature sensor 530 to block water vapor and mist, thereby protecting the first temperature sensor 530 and preventing improper external force from directly acting on the first temperature sensor 530, thereby affecting the accuracy of the temperature detected by the first temperature sensor 530 and even causing damage to the first temperature sensor 530.

[0148] like Figures 2 to 4 As shown, the output end 513 of the sampling flexible circuit board 510 is provided with a connector 5131 , and the integrated flexible circuit board 420 is provided with a matching connector 424 . The connector 5131 is used to connect to the matching connector 424 of the integrated flexible circuit board 420 of the sampling component 400 .

[0149] like Figure 5 and Figure 6 As shown, the mounting end 512 of the soft circuit board 510 is located between the thermal pad 540 and the support base 522 of the support bracket 520. The first temperature sensor 530 is located between the mounting end 512 and the support base 522.

[0150] In the embodiment of the present application, the first temperature sensor 530 may be a negative temperature coefficient thermistor (Negative Temperature Coefficient, abbreviated as NTC). In one embodiment, two first temperature sensors 530 may be installed simultaneously on the mounting end 512 of the soft and flexible circuit board 510. The two first temperature sensors 530 may be, for example, negative temperature coefficient thermistors with different resistance values, so that the temperature data can be further balanced and calibrated, or double insurance can be provided, so that when one first temperature sensor 530 fails, the other can still work normally.

[0151] The temperature collection component 500 further includes a heat conductive sheet 550, which is located between the heat conductive pad 540 and the mounting end 512. In the embodiment of the present application, the heat conductive sheet 550 can be a metal sheet, which can have the functions of heat conduction and structural reinforcement.

[0152] The support base 522 has a receiving groove 5221, and the receiving groove 5221 is used to receive the first temperature sensor 530. It is understood that in one embodiment, the receiving groove 5221 can be a through groove; in another embodiment, the receiving groove 5221 can be a non-through groove, and the receiving groove 5221 is opened on the side of the support base 522 facing the mounting end 512.

[0153] like Figure 6 As shown, the flexible circuit board 510 further has an extendable folding portion 514 between the main body 511 and the output end 513 .

[0154] like Figure 5 and Figure 7 As shown, the support seat 522 of the support bracket 520 also has a first retaining column 5222, and the first retaining column 5222 passes through and retains the mounting end 512 and the heat conducting sheet 550. The first retaining column 5222 is convexly arranged on the side surface of the support seat 522 facing the mounting end 512. The number of the first retaining columns 5222 provided on a support seat 522 can be one or more, and a plurality refers to more than two. In the embodiment of the present application, two first retaining columns 5222 are provided on a support seat 522.

[0155] The mounting end 512 has a first hole 5121, and the heat conducting sheet 550 has a second hole 551 corresponding to the position of the first hole 5121. The first retaining column 5222 has a first interference rib 5223, the first retaining column 5222 passes through the first hole 5121 and the second hole 551, and the first interference rib 5223 passes through the first hole 5121 and interferes with the second hole 551 to fix.

[0156] like Figure 3 , Figure 5 , Figure 8 and Fig. 9 As shown, the fixing base 521 has a buckle pin 5211, and the end plate 13 has a buckle hole 133. The buckle pin 5211 is inserted and buckled into the buckle hole 133 of the end plate 13. The end of the buckle pin 5211 has a convex buckle block 5212, and the inner wall of the buckle hole 133 has a buckle groove 1331 for buckling the convex buckle block 5212.

[0157] In the embodiment of the present application, a pair of buckle pins 5211 are provided on the fixing seat 521, and the pair of buckle pins 5211 are arranged opposite to each other in the left-right direction D3. The inner wall of the buckle hole 133 has a pair of buckle grooves 1331 arranged opposite to each other in the left-right direction D3, and the convex buckle blocks 5212 of the pair of buckle pins 5211 are used to buckle in the pair of buckle grooves 1331 of one buckle hole 133 respectively.

[0158] like Figure 3 As shown, in the embodiment of the present application, a boss 135 is provided on a side surface (outer surface 13 b ) of the end plate 13 facing away from the battery array 11 , and a buckle hole 133 is provided on the boss 135 , and the buckle hole 133 is a through hole.

[0159] like Fig.10 and Fig.11 As shown, the end plate 13 has an inner surface 13a facing the battery array 11 and an outer surface 13b facing away from the battery array 11. The end plate 13 also has a window 134 that penetrates the inner surface 13a and the outer surface 13b along the front-to-back direction D1. The support seat 522 passes through the window 134 of the end plate 13 from the outside to the inside and extends into the inner surface 13a of the end plate 13.

[0160] like Figure 3 As shown, in the embodiment of the present application, the two fixing seats 521 of a support bracket 520 each have a pair of buckle pins 5211. Two bosses 135 are provided at the position where the end plate 13 and the two fixing seats 521 of the support bracket 520 are matched and fixed, and the two bosses 135 are provided on both sides of the window 134 along the up-down direction D2. The two pairs of buckle pins 5211 on the two fixing seats 521 of a support bracket 520 are buckled in the two buckle holes 133 respectively.

[0161] like Fig.11 As shown, from the back to the front, the outer side surface of the cooling plate 14 is provided with a thermal pad 540, a thermal conductive sheet 550, a mounting end 512, a first temperature sensor 530 and a cover 570 in sequence.

[0162] like Fig.12 and Fig.13 As shown, the end plate 13 is provided with a connector temporary storage seat 131, and the connector 5131 of the soft flexible circuit board 510 can be positioned on the connector temporary storage seat 131. When the connector 5131 of the soft flexible circuit board 510 is not connected to the mating connector 424 of the integrated flexible circuit board 420, the connector 5131 can be positioned on the connector temporary storage seat 131 to prevent the connector 5131 from shaking. The folding portion 514 of the soft flexible circuit board 510 allows the connector 5131 to be flipped to a position positioned in the connector temporary storage seat 131, or flipped to a position connected to the mating connector 424.

[0163] The connector temporary storage seat 131 may be configured to cooperate with the housing of the connector 5131 and to be in an interference configuration. For example, the connector temporary storage seat 131 and the connector 5131 may have an interference structure in which a concave portion and a convex portion cooperate with each other.

[0164] Second embodiment

[0165] The similarities between the temperature collection component 500 of the second embodiment of the present application and the temperature collection component 500 of the first embodiment are not repeated here, and the difference lies in that:

[0166] like Fig.14 and Fig.15 As shown, the support bracket 520 has a support base 522 , a fixing base 521 and a connecting arm 523 located between the support base 522 and the fixing base 521 .

[0167] The soft and flexible circuit board 510 further includes a fixed end 515, and the fixed end 515 is connected to the main body 511. The end plate 13 has a fixed column 132 that matches and fixes the fixed end 515. The fixed end 515 has a buckle hole 5151, and the fixed column 132 has a buckle block 1321 that matches the buckle hole 5151. When the soft and flexible circuit board 510 is connected to the end plate 13, the fixed column 132 is inserted into the buckle hole 5151, and the buckle block 1321 is buckled into the buckle hole 5151.

[0168] like Fig.14 and Fig.15 As shown, the output end 513 of the sampling flexible circuit board 510 has an exposed conductive finger 5132 for plugging into a flexible circuit board connector (not shown) of the sampling assembly 400. In the embodiment of the present application, the flexible circuit board connector can be disposed on the integrated flexible circuit board 420.

[0169] like Figures 15 to 17 As shown, the first temperature sensor 530 is located between the mounting end 512 of the temperature sensing flexible circuit board 510 and the thermal pad 540. The temperature sensing component 500 further includes a protection frame 560, which is located between the thermal pad 540 and the mounting end 512. The protection frame 560 has a first frame opening 561 surrounding the first temperature sensor 530.

[0170] The protection frame 560 can both strengthen and protect the first temperature sensor 530. The protection frame 560 can be a plastic frame or a metal frame.

[0171] like Fig.15 and Fig.17 As shown, the cover 570 covers the first temperature sensor 530 , the thermal pad 540 is attached to the mounting end 512 and covers the cover 570 and the first temperature sensor 530 , and the thermal pad 540 passes through the first frame opening 561 .

[0172] like Fig.14 and Fig.18 As shown, a boss 135 is provided at a position corresponding to a fixing seat 521 of a support bracket 520 on the end plate 13. The boss 135 is arranged close to the window 134 and has a buckle hole 133. A pair of buckle pins 5211 on a fixing seat 521 of the support bracket 520 are buckled in the buckle hole 133.

[0173] like Fig.15 and Fig.19As shown, the protection frame 560 also has a second retaining column 562, which passes through and holds the mounting end 512 and the support seat 522. The mounting end 512 has a first hole 5121, and the support seat 522 has a third hole 5224. The second retaining column 562 is provided with a second interference rib 563, which passes through the first hole 5121 and interferes with the third hole 5224 to fix.

[0174] Third embodiment

[0175] The similarities between the temperature collection component 500 of the third embodiment of the present application and the temperature collection component 500 of the second embodiment are not repeated here, and the difference lies in that:

[0176] The support base 522 of the support bracket 520 is located between the mounting end 512 and the thermal pad 540. The first temperature sensor 530 is located between the mounting end 512 and the support base 522.

[0177] The support base 522 has a second frame opening 5225 surrounding the first temperature sensor 530 . The thermal pad 540 is attached to the mounting end 512 and covers the first temperature sensor 530 and the cover 570 . The thermal pad 540 passes through the second frame opening 5225 .

[0178] The fixing seat 521 is not provided with a buckle pin 5211, but has an assembly hole 5213. The end plate 13 may be provided with a clamping column (not shown in the figure) which is clamped in the assembly hole 5213 so that the support bracket 520 is assembled on the end plate 13.

[0179] To summarize, in the battery connection module 12 of the embodiment of the present application, the support seat 522 of the support bracket 520 extends into the inner surface of the end plate 13 and faces the cooling plate 14, the mounting end 512 of the temperature sampling flexible circuit board 510 is arranged on the support seat 522, the first temperature sensor 530 is installed on the mounting end 512, and the thermal pad 540 is located between the mounting end 512 and the cooling plate 14, so that the first temperature sensor 530 of the temperature sampling component 500 can be coupled to the cooling plate 14 at the closest distance to collect the temperature of the cooling plate 14, shorten the temperature sampling transmission path, and improve the sampling response rate during the sampling process. At the same time, the difference between the sampling temperature and the temperature of the cooling plate 14 is greatly reduced, thereby improving the sampling accuracy.

[0180] It is understandable that the various embodiments / implementations provided in the present application can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0181] In the application embodiments, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the application embodiments can be understood according to the specific circumstances.

[0182] In the description of the application embodiments, it should be understood that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the application embodiments and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the application embodiments.

[0183] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0184] The above are only preferred embodiments of the application embodiments and are not intended to limit the application embodiments. For those skilled in the art, the application embodiments may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application embodiments shall be included in the protection scope of the application embodiments.

Claims

1. A battery connection module, used for connecting a battery array; the battery array comprises a plurality of batteries; an end plate is provided on the outside of the battery array, and a cooling plate is provided between the batteries of the battery array; characterized in that: The battery connection module comprises: A plurality of bus bars, used for connecting a plurality of the batteries in the battery array; Sampling components; A temperature sampling component is assembled on the end plate to collect the temperature of the cooling plate; the temperature sampling component includes a temperature sampling flexible circuit board, a support bracket, a first temperature sensor and a thermal pad; the support bracket has a fixed seat, a support seat and a connecting arm connected between the fixed seat and the support seat; the fixed seat is fixed on the end plate, and the support seat extends into the inner surface of the end plate and faces the cooling plate; the temperature sampling flexible circuit board has a main body, a mounting end and an output end, and the mounting end is arranged on the support seat; the output end is connected to the sampling component; the first temperature sensor is installed on the mounting end; the thermal pad is located between the mounting end and the cooling plate.

2. The battery connection module according to claim 1, characterized in that: The mounting end of the temperature-sensitive flexible circuit board is located between the thermal pad and the support base of the support bracket.

3. The battery connection module according to claim 2, characterized in that: The first temperature sensor is located between the mounting end and the supporting base.

4. The battery connection module according to claim 3, characterized in that: The support base has a receiving groove for receiving the first temperature sensor.

5. The battery connection module according to claim 4, characterized in that: The temperature collection component also includes a heat conductive sheet, which is located between the heat conductive pad and the mounting end.

6. The battery connection module according to claim 5, characterized in that: The support seat of the support bracket also has a first retaining column, and the first retaining column passes through and retains the mounting end and the heat conducting sheet.

7. The battery connection module according to claim 6, characterized in that: The mounting end has a first hole, and the heat conducting sheet has a second hole corresponding to the position of the first hole; The first retaining column has a first interference rib, and the first interference rib passes through the first hole and is interfered and fixed with the second hole.

8. The battery connection module according to claim 2, characterized in that: The first temperature sensor is located between the mounting end of the temperature-sensitive flexible circuit board and the thermal pad.

9. The battery connection module according to claim 8, characterized in that: The temperature collection component further includes a protection frame, which is located between the thermal pad and the mounting end, and has a first frame opening surrounding the first temperature sensor.

10. The battery connection module according to claim 9, characterized in that: The thermal pad is attached to the mounting end and covers the first temperature sensor, and the thermal pad passes through the first frame opening.

11. The battery connection module according to claim 10, characterized in that: The protection frame also has a second retaining column, which passes through and retains the mounting end and the support seat.

12. The battery connection module according to claim 11, characterized in that: The mounting end has a first hole, and the support base has a third hole; The second retaining column is provided with a second interference rib, and the second interference rib passes through the first hole and is interfered and fixed with the third hole.

13. The battery connection module according to claim 1, characterized in that: The support seat is located between the mounting end and the thermal pad.

14. The battery connection module according to claim 13, characterized in that: The first temperature sensor is located between the mounting end and the supporting base.

15. The battery connection module according to claim 14, characterized in that: The support base has a second frame opening surrounding the first temperature sensor, the thermal pad is attached to the mounting end and covers the first temperature sensor, and the thermal pad passes through the second frame opening.

16. The battery connection module according to claim 1, characterized in that: The output end of the temperature sampling flexible circuit board is provided with a connector for connecting to the mating connector of the sampling component.

17. The battery connection module according to claim 16, characterized in that: A folding portion that can be extended and extended is provided between the main body portion and the output end of the temperature-sensitive flexible circuit board.

18. The battery connection module according to claim 17, characterized in that: The end plate is provided with a connector temporary storage seat, and the connector of the soft and flexible circuit board can be positioned on the connector temporary storage seat.

19. The battery connection module according to claim 1, characterized in that: The output end of the temperature sampling flexible circuit board has an exposed conductive finger for plugging into a connector for the flexible circuit board of the sampling component.

20. The battery connection module according to claim 1, characterized in that: The temperature-sensitive flexible circuit board further comprises a fixed end, and the end plate has a fixed column for cooperating and fixing the fixed end.

21. The battery connection module according to claim 20, characterized in that: The fixed end has a buckle hole, and the fixed column has a buckle block matched with the buckle hole.

22. The battery connection module according to claim 1, characterized in that: The fixing seat has a buckle pin, and the buckle pin is inserted into and buckled in the buckle hole of the end plate. The supporting seat passes through the window of the end plate from the outside to the inside and extends into the inner surface of the end plate.

23. The battery connection module according to claim 22, characterized in that: The buckle pins are constructed in a pair, and the ends of the buckle pins are provided with convex buckle blocks, and the inner wall of the buckle hole is provided with a buckle groove for buckling the convex buckle blocks.

24. The battery connection module according to claim 23, characterized in that: The supporting bracket comprises a supporting seat, two connecting arms located at two sides of the supporting seat and two fixing seats.

25. The battery connection module according to claim 23, characterized in that: The supporting bracket comprises a supporting seat, a fixing seat and a connecting arm located between the supporting seat and the fixing seat.

26. The battery connection module according to claim 1, characterized in that: The fixing seat has an assembly hole for being assembled on the end plate.

27. The battery connection module according to claim 1, characterized in that: The temperature collection component also includes a cover for covering the first temperature sensor.

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