Battery acquisition assembly, battery module and electric equipment

Abstract

The utility model belongs to the technical field of batteries, and particularly relates to a battery acquisition assembly, a battery module and electric equipment. The battery acquisition assembly comprises an acquisition board; one end of the connecting sheet in the first direction is fixed on one side of the acquisition board and is electrically connected with the acquisition board, and the other end of the connecting sheet is provided with a first clamping structure; the fixing piece is connected and fixed with the to-be-tested battery, and the fixing piece is used for pressing the connecting piece on the to-be-tested battery, so that the acquisition plate can acquire temperature information and / or voltage information of the to-be-tested battery; a second clamping structure suitable for being matched with the first clamping structure in a clamping mode in the first direction is arranged on the side, facing the first clamping structure, of the fixing piece. According to the utility model, a clamping mode is adopted to connect with the to-be-tested battery, the problems of explosion, insufficient soldering and the like existing in a welding mode and the problem of falling caused by glue aging existing in a gluing mode can be avoided, abnormal conditions such as serious local heating and the like caused by increase of contact internal resistance can be prevented, and the reliability is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and specifically relates to a battery collection component, a battery module and an electrical device. Background Art

[0002] During the use of batteries, parameters such as operating temperature or voltage need to be monitored. Taking lithium-ion battery temperature measurement as an example, NTC thermistor (Negative Temperature Coefficient thermistor) is usually used to collect the temperature of the battery cell and feed it back to the battery management system to monitor and manage the battery cell temperature. In the traditional layout, the collector is usually arranged on the bus, and the temperature of the battery cell is indirectly reflected by detecting the temperature of the bus. However, due to the high charge and discharge rate and large current value of the high-rate or high-power battery system, the bus has a small flow area and a high temperature due to space and weight limitations, which deviates from the actual battery cell temperature. Some solutions provide solutions to fix the collector on the battery cell cover by welding or glue bonding. However, the welding method is prone to problems such as explosion and cold welding, which in turn leads to increased contact internal resistance and severe local heating, affecting normal collection; while the glue bonding method is prone to falling off under conditions such as vibration and impact, and the glue has aging problems, so the reliability is relatively poor and the risk is high. Utility Model Content

[0003] In view of this, in order to improve at least one of the above problems existing in the prior art, the utility model provides a battery collection component, a battery module and an electrical device.

[0004] The first technical solution of the utility model provides a battery collection component, including: a collection board; a connecting piece, one end of the connecting piece in a first direction is fixed to one side of the collection board and electrically connected to the collection board, and the other end of the connecting piece is provided with a first clamping structure; a fixing piece, connected and fixed to a battery to be tested, the fixing piece is used to press the connecting piece against the battery to be tested, so that the collection board can collect temperature information and / or voltage information of the battery to be tested; wherein a second clamping structure is provided on a side of the fixing piece facing the first clamping structure, and the second clamping structure is suitable for clamping and cooperating with the first clamping structure along the first direction.

[0005] In a feasible implementation, the fixing member is provided with a accommodating cavity, and a first opening is provided on one side of the fixing member facing the connecting plate in the first direction, and the first opening is connected to the accommodating cavity so that the first clip structure extends from the first opening into the accommodating cavity and cooperates with the second clip structure.

[0006] In a feasible implementation, a second opening is provided on a side of the fixing member facing the battery to be tested, the second opening is connected to the accommodating cavity, a second clamping structure is provided on the inner wall surface of the accommodating cavity opposite to the second opening, and the second clamping structure presses the first clamping structure on the second opening to press the connecting plate against the battery to be tested.

[0007] In a feasible implementation, one of the first snap-fitting structure and the second snap-fitting structure includes a slot and the other includes an insert, which is inserted into the slot to form a snap-fitting fit; wherein the slots are spaced apart along a first direction, the inserts are spaced apart along the first direction, and at least part of the slots and at least part of the inserts are plug-fitted along the first direction.

[0008] In a feasible implementation, the inserting piece or the slot is arranged on the connecting piece in an inclined manner away from the fixing member.

[0009] In a feasible implementation, a plurality of claws are provided around the second opening, a plurality of slots are provided on the battery to be tested, and the plurality of claws are used to engage with the plurality of slots to fix the fixing member to the battery to be tested.

[0010] In a feasible implementation, a plurality of claws are arranged at intervals along the second direction, and any claw can be engaged with the slot to adjust the height of the accommodating cavity along the second direction, and the second direction is perpendicular to the first direction.

[0011] In a feasible implementation, a connecting wall is provided on the side of the fixing member facing the battery to be tested, a buckle is provided on the connecting wall, a matching groove is provided on the battery to be tested, and the buckle is used to engage with the matching groove to fix the fixing member to the battery to be tested; a sealing ring is provided on the side of the connecting wall facing the battery to be tested, and the sealing ring is used to be sealed and connected with the battery to be tested.

[0012] The technical solution of the second aspect of the utility model provides a battery module, including: a plurality of battery cells, each battery cell is provided with a cover plate on the top, and the cover plate is provided with a pole; a busbar connected to the poles of two adjacent battery cells; the battery collection assembly of any one of the above-mentioned first aspects, wherein the fixing member is fixedly connected to the cover plate or the busbar.

[0013] The technical solution of the third aspect of the present invention provides an electrical device, comprising the battery module of any one of the above-mentioned second aspects.

[0014] The beneficial effects of the above technical solution of the utility model are embodied in:

[0015] The structure and connection method of the battery collection component have been improved, which can effectively collect the temperature information and / or voltage information of the battery to be tested, and a snap-on method is used between the battery to be tested instead of the traditional welding or gluing method, which can avoid the problems of explosion and cold welding in the welding method and the problem of glue aging and falling off in the gluing method. It can prevent abnormal situations such as severe local heating due to increased contact internal resistance, greatly improve reliability, and reduce safety risks accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of a disassembled state of a battery collection assembly provided by an embodiment of the utility model.

[0017] Figure 2 Shown is a schematic diagram of a partially exploded state of a battery collection assembly provided by an embodiment of the utility model.

[0018] Figure 3 The figure shows a schematic diagram of a partial structure of a battery collection assembly provided by an embodiment of the utility model in an exploded state from another viewing angle.

[0019] Figure 4 Shown is a schematic diagram of a battery module provided by an embodiment of the utility model.

[0020] Figure 5 Shown is a partial schematic diagram of a battery module provided by an embodiment of the utility model.

[0021] Figure 6 Shown is a partial schematic diagram of a battery module provided by an embodiment of the utility model at another viewing angle (fixing parts are not assembled).

[0022] Figure 7 Shown is a partial schematic diagram of a battery module provided by an embodiment of the utility model from a side view (with the fixing parts not assembled).

[0023] Figure 8 Shown is a schematic diagram of a fixing member provided in one embodiment of the utility model.

[0024] Fig. 9 Shown is a partial cross-sectional view of a battery module provided by one embodiment of the utility model.

[0025] Fig.10 The figure shows a side cross-sectional view of a battery collection assembly and a busbar in an assembled state provided by an embodiment of the utility model.

[0026] Fig.11 Shown is a schematic diagram of a bus provided by an embodiment of the utility model.

[0027] Fig.12 The figure shows a three-dimensional schematic diagram of a battery collection component and a busbar in an assembled state provided by an embodiment of the utility model.

[0028] Fig.13 Shown is a schematic diagram of a fixing member provided in one embodiment of the utility model.

[0029] Fig.14 Shown Fig.13 Schematic diagram of the fixing parts in another perspective.

[0030] Fig.15 Shown is a schematic diagram of another battery module provided by an embodiment of the utility model.

[0031] Fig.16 Shown is a partial schematic diagram of another battery module provided by an embodiment of the utility model.

[0032] Fig.17 Shown Fig.16 A partial cross-sectional view of the battery module.

[0033] Fig.18 Shown is a schematic diagram of another fixing member provided by an embodiment of the utility model.

[0034] Fig.19 Shown Fig.18 A cross-sectional view of the fixing in the assembled state.

[0035] Description of reference numerals:

[0036] 100 battery collection components;

[0037] 1 acquisition board;

[0038] 2 connecting piece, 21 first clamping structure, 211 inserting piece, 22 temperature collector;

[0039] 3 fixing member, 31 second clamping structure, 311 slot, 32 accommodating cavity, 321 first opening, 322 second opening, 33 clamping claw, 34 connecting wall, 35 buckle, 36 sealing ring;

[0040] 400 battery module, 41 battery cell, 411 cover plate, 412 pole, 42 bus bar, 431 card slot, 433 matching slot. DETAILED DESCRIPTION

[0041] In the description of the application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise clearly and specifically limited. In the embodiment of the present application, all directional indications (such as up, down, left, right, front, back, top, bottom ...) are only used to explain the relative position relationship, motion conditions, etc. between the components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their deformations are intended to cover non-exclusive inclusions. For example, the process, method, system, product or equipment comprising a series of steps or units are not limited to the steps or units listed, but optionally also include the steps or units not listed, or optionally also include other steps or units inherent to these processes, methods, products or equipment.

[0042] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] Application Overview

[0045] During the use of the battery, it is necessary to monitor parameters such as operating temperature or voltage. Taking lithium-ion battery temperature measurement as an example, in the traditional layout method, the collector is usually arranged on the bus, and the temperature of the battery cell is indirectly reflected by detecting the temperature of the bus. However, due to the high charge and discharge rate and large current value of the high-rate or high-power battery system, and the bus is limited by space and weight, the flow area is small and the temperature is high, which deviates from the actual battery cell temperature.

[0046] The prior art provides some improvement schemes, such as fixing the collector on the battery cover by welding or gluing. However, the welding method is prone to fire and cold welding, which in turn leads to increased contact resistance and serious local heating, affecting normal collection. The glue bonding method is prone to falling off under vibration, impact and other conditions, and the glue has aging problems, and the reliability is relatively poor and the risk is high. Therefore, it is necessary to develop a collection component with more optimized structure and higher detection accuracy.

[0047] Some embodiments of the battery collection assembly, battery module and power-consuming device in the technical solution of the utility model are provided below.

[0048] In an embodiment of the first aspect of the present utility model, a battery collection component 100 is provided, such as Figure 1 , Figure 2 and Figure 3 As shown, the battery collection assembly 100 includes a collection board 1, a connecting piece 2 and a fixing piece 3. The connecting piece 2 extends along a first direction, one end of the connecting piece 2 in the first direction is fixed to one side of the collection board 1 and forms an electrical connection with the collection board 1, and the other end of the connecting piece 2 in the first direction is provided with a first clamping structure 21; the fixing piece 3 is connected and fixed to the battery to be tested, the fixing piece 3 is located at one end of the connecting piece 2 provided with the first clamping structure 21, and a second clamping structure 31 is provided on the side of the fixing piece 3 facing the first clamping structure 21, and the second clamping structure 31 is suitable for forming a clamping fit with the first clamping structure 21 along the first direction, so that the connecting piece 2 is connected and fixed to the fixing piece 3. After being assembled on the battery to be tested, as shown in FIG. Figure 4 and Figure 5 As shown, the fixing member 3 can press the connecting piece 2 against the battery to be tested, so that the acquisition board 1 can acquire the temperature information and / or voltage information of the battery to be tested, thereby realizing the information acquisition of the battery to be tested.

[0049] It can be understood that in actual applications, different information can be collected according to the specific assembly method of the acquisition board 1 and the battery to be tested and the different acquisition requirements. For example, the connecting piece 2 can conduct electricity and heat after being connected to the battery to be tested through the acquisition board 1, and the voltage information of the battery to be tested can be collected as needed, and the temperature information of the battery to be tested can also be collected as needed, and the temperature information and voltage information of the battery to be tested can also be collected at the same time as needed. Specifically, corresponding sensing devices can be set as needed, such as Figure 1 The temperature collector 22 in the apparatus.

[0050] It should be noted that, according to different collection requirements, the battery collection component 100 can be installed at different positions on the battery to be tested, and connected to the battery to be tested through the fixing member 3. For example, the fixing member 3 can be connected and fixed to the bus 42 of the battery to be tested, and can also be connected and fixed to the cover plate 411 of the battery to be tested.

[0051] The battery collection component 100 in this embodiment has improved and optimized its structure and connection method, and can effectively collect the temperature information and / or voltage information of the battery to be tested. A clamping method is used between the battery to be tested instead of the traditional welding or gluing method, which can avoid the problems of explosion and cold welding in the welding method and the problem of glue aging and falling off in the gluing method, and can prevent abnormal situations such as severe local heating due to increased contact internal resistance, thereby greatly improving reliability and reducing safety risks.

[0052] In a further embodiment of the present invention, Figures 1 to 3 As shown, the fixing member 3 is provided with a receiving cavity 32; in the first direction, the fixing member 3 is provided with a first opening 321 on one side facing the connecting piece 2, and the first opening 321 is communicated with the receiving cavity 32. During assembly, the first clamping structure 21 of the connecting piece 2 can extend into the receiving cavity 32 through the first opening 321, and form a clamping fit with the second clamping structure 31 in the receiving cavity 32. Through the arrangement in this embodiment, the first clamping structure 21 and the second clamping structure 31 can form a built-in design, which is convenient for assembly, and also avoids contact with the outside world to affect the clamping fit and safety.

[0053] Furthermore, in a specific implementation, Figures 1 to 3 As shown, the fixing member 3 has a second opening 322 on one side facing the battery to be tested, for example Figure 1 The second opening 322 at the bottom in the second direction; the second opening 322 is connected to the accommodating cavity 32, and the second clamping structure 31 is arranged on the inner wall surface of the accommodating cavity 32 opposite to the second opening 322; after assembly, as Figure 5 and Figure 6 In the example, the second clamping structure 31 presses the first clamping structure 21 against the second opening 322, so that the connecting sheet 2 is pressed against the battery to be tested, so as to collect the temperature information and / or voltage information of the battery to be tested. Figures 4 to 6 In the example, the first direction is the horizontal direction and the second direction is the height direction; of course, depending on the different arrangement directions of the battery to be tested, the specific directions of the first direction and the second direction also change accordingly.

[0054] The first opening 321 and the second opening 322 of the fixing member 3 in this embodiment facilitate the cooperation between the fixing member 3 and the connecting piece 2 on the one hand, and enable the connecting piece 2 to be in close contact with the battery to be tested on the other hand, which has higher reliability, thereby ensuring that information can be normally collected from the battery to be tested.

[0055] Furthermore, if Figure 7 and Figure 8As shown, in the first clamping structure 21 and the second clamping structure 31, one includes a slot 311 and the other includes an inserting piece 211. During assembly, at least part of the inserting piece 211 and at least part of the slot 311 form a plug-in fit along a first direction, so that the first clamping structure 21 and the second clamping structure 31 are clamped. Figure 7 and Figure 8 In the example, the first clamping structure 21 includes a plurality of inserting pieces 211 spaced apart in the first direction, and the second clamping structure 31 includes a plurality of slots 311 spaced apart in the first direction, and the spacing between the inserting pieces 211 matches the spacing between the slots 311; during assembly, the inserting pieces 211 can be inserted into the corresponding slots 311 in the second direction to form a plug-in fit, such as Fig. 9 and Fig.10 In the state shown, the fixing member 3 is fixedly connected to the battery to be tested, so that pressure can be applied to the connecting piece 2 through the plug-in fit between the slot 311 and the plug-in piece 211, thereby limiting the connecting piece 2 in the first direction and the second direction, so that the connecting piece 2 remains fixed and pressed against the battery to be tested to avoid poor contact caused by vibration.

[0056] Furthermore, if Figures 7 to 9 As shown, the insert 211 or the slot 311 is tilted and arranged on the connecting piece 2 in a direction away from the fixing member 3. After being plugged in, mutual pressure is generated between the insert 211 and the slot 311, and the direction of the pressure is perpendicular to the contact surface of the two, so that part of the pressure can be decomposed into the first direction, and part of the pressure can be decomposed into the second direction, so that pressure can be generated on the connecting piece 2 in both directions, the fit is more stable, the connection strength is higher, and the phenomenon of loosening between the insert 211 and the slot 311, which causes the connecting piece 2 to fall off or warp, can be effectively prevented. Among them, the angle between the insert 211 or the slot 311 and the connecting piece 2 can be set according to specific assembly and strength requirements.

[0057] In a further embodiment of the present invention, Figure 8 and Fig.11 As shown, a plurality of claws 33 are arranged around the second opening 322 of the fixing member 3, and a slot 431 matching the claws 33 is arranged on the battery to be tested; the claws 33 can form a snap fit with the corresponding slot 431, so that the fixing member 3 is fixed on the battery to be tested. Figure 8 , Fig.11 and Fig.12In the example, claws 33 are provided on the three outer walls of the fixing member 3 located around the second opening 322, and the claws 33 have a structure similar to an inverted triangle. The bus 42 of the battery to be tested is provided with slots 431 at positions opposite to the second opening 322. When the fixing member 3 is connected to the bus 42, the claws 33 extend into the corresponding slots 431 and form a snap fit to form a detachable connection and fixation. Compared with the welding or gluing connection method, the snap connection method of this embodiment is simpler to operate and can achieve quick disassembly and assembly operations.

[0058] Each claw 33 extends horizontally from one end of the side wall of the fixing member 3 to the other end, so as to increase the contact area during the snap-fitting, which is beneficial to improve the connection strength. Figure 8 As shown, there is a certain gap between the three side walls of the fixing member 3, and a certain elastic deformation can be generated when the claw 33 cooperates with the slot 431 to prevent mutual interference between adjacent side walls and avoid the position error of the slot 431 that causes the claw 33 to be unable to be installed.

[0059] Furthermore, if Fig.13 and Fig.14 As shown, a plurality of claws 33 are arranged at intervals along the second direction on the fixing member 3. During assembly, any claw 33 in the second direction can form a snap fit with the snap groove 431, so that the height of the fixing member 3 and the accommodating cavity 32 in the second direction can be adjusted according to specific assembly requirements to meet the matching requirements of the first snap-fit ​​structure 21 and the second snap-fit ​​structure 31. By providing a fixing member 3 with adjustable height, not only can the second snap-fit ​​structure 31 be matched with the first snap-fit ​​structure 21 of different heights, thereby increasing the snap-fit ​​range and adjusting the contact area and the clamping force, but also the busbars 42 of different heights can be adapted, thereby improving the versatility between components.

[0060] Specifically, the slot 431 extends along the first direction and penetrates the side wall of the bus 42, so that the fixing member 3 can be inserted into the slot 431 along the first direction, which is convenient for the installation of the fixing member 3. Fig.11 As shown, in order to facilitate assembly, the claws 33 of the fixing member 3 can be arranged on the two side walls parallel to the first direction to avoid interference from the claws 33 in other directions. During assembly, the connecting piece 2 is first extended into the accommodating cavity 32 of the fixing member 3 from the first opening 321, and then the two claws 33 are inserted horizontally along the slot 431. After that, the fixing member 3 can be pressed or moved as needed to adjust the position of the fixing member 3 along the second direction. In another installation method, refer to Fig.13As shown, claws 33 are provided on the three side walls. During assembly, the connecting piece 2 is first extended into the accommodating cavity 32 of the fixing member 3 from the first opening 321, and then the claws 33 of the fixing member 3 are directly pressed to the corresponding position of the slot 431, passing through the slot 431 to achieve the compression of the connecting piece 2, and then the fixing member 3 is moved downward to adjust the compression degree of the connecting piece 2.

[0061] It should be noted that the connection position between the fixing member 3 and the battery to be tested is not limited to the bus bar 42 in the above example. Preferably, the bus bar 42 can be made of aluminum. Of course, the fixing member 3 can also be connected to other positions on the battery to be tested, such as Fig.15 , Fig.16 and Fig.17 In the example, a corresponding connection structure can also be set on the cover plate 411 of the battery to be tested to connect and fix it with the fixing member 3. At this time, the detected temperature of the cover plate 411 directly represents the battery temperature, which can effectively eliminate the temperature difference problem between the collected point and the reading point.

[0062] Another specific implementation method is provided in a further embodiment of the present utility model, such as Figure 18 to Figure 19 As shown, a connecting wall 34 is provided on the side of the fixing member 3 facing the battery to be tested, that is, the bottom of the fixing member 3 in the second direction is a closed structure, and a buckle 35 is provided at the bottom of the connecting wall 34. Correspondingly, a matching groove 433 matching the buckle 35 is provided on the battery to be tested; during assembly, the buckle 35 extends into the matching groove 433 and forms a snap fit to achieve connection and fixation between the fixing member 3 and the battery to be tested. Preferably, as Fig.18 In the example, the buckle 35 has an inverted trapezoidal structure on both opposite sides in the first direction. When mating with the mating groove 433, both sides of the buckle 35 can form a snap fit with the mating groove 433, and the force on both sides is relatively uniform, which can further enhance the strength and stability of the snap fit.

[0063] Of course, the structure of the buckle 35 is not limited to Fig.18 In the example, other structures can also be used according to specific assembly requirements. For example, the buckle 35 can also adopt a pyramid structure or a cone structure, and a structure corresponding to the matching groove 433 is set on the battery to be tested to form a snap-fit ​​with the buckle 35 of the pyramid structure or the cone structure, which can further improve the strength and stability of the snap-fit.

[0064] Furthermore, if Fig.18As shown, a sealing ring 36 is further provided on the side of the connecting wall 34 facing the battery to be tested. The sealing ring 36 extends along the edge of the connecting wall 34. When matched with the battery to be tested, the sealing ring 36 is used to seal the connecting wall 34 and the battery to be tested, so that a sealed connection is formed between the fixing member 3 and the battery to be tested, so as to meet the assembly requirements of the battery and also absorb vibration energy and buffer vibration.

[0065] Furthermore, using Fig.18 When assembling the fixing member 3 shown in the figure, the connecting piece 2 can be first extended into the accommodating cavity 32 of the fixing member 3 through the first opening 321, so that the buckle 35 at the bottom of the connecting wall 34 is snap-fitted with the matching groove 433 on the battery to be tested.

[0066] Of course, the first clamping structure 21 and the second clamping structure 31 can also be designed as a structural form with a certain elasticity. During assembly, when the connecting piece 2 extends from the first opening 321 into the accommodating cavity 32 of the fixing member 3 along the first direction, the inserting piece 211 of the first clamping structure 21 contacts the slot 311 of the second clamping structure 31, and generates a certain amount of elastic deformation under the action of pressure, so that the inserting piece 211 sequentially passes over the side wall of the slot 311 and forms a plug-in fit with the corresponding slot 311. In addition, the inserting piece 211 and the slot 311 can also be interchanged according to specific assembly needs, that is, the first clamping structure 21 is provided with a plurality of slots 311, and the second clamping structure 31 is provided with a plurality of inserting pieces 211, and the connection and fixation can also be achieved through the plug-in fit between the inserting piece 211 and the slot 311.

[0067] It should be noted that, in practical applications, the positions of the first clamping structure 21 and the second clamping structure 31 can be adjusted as needed. Fig.17 In the example in, the first snap-fit ​​structure 21 may be arranged at the bottom of the connecting piece 2, and the second snap-fit ​​structure 31 may be arranged on the inner bottom wall of the accommodating cavity 32, which can also form a snap-fit ​​fit.

[0068] In a further embodiment of the present invention, in the battery collection assembly 100, the connecting sheet 2 is preferably a flexible nickel strip, and the collection board 1 is a flexible printed circuit board (Flexible Printed Circuit, referred to as FPC); preferably, Figure 4 and Figure 5 In the example, the area on the collection board 1 connected to the connecting piece 2 is designed as a cantilever structure. As a part of the collection board 1, the cantilever structure has only one end connected to the main part of the collection board 1.

[0069] In an embodiment of the second aspect of the present utility model, a battery module 400 is provided, such as Figure 4As shown, the battery module 400 includes a plurality of battery cells 41, a bus bar 42, and a battery collection assembly 100 in any embodiment of the first aspect. A cover plate 411 is provided on the top of each battery cell 41, and a pole 412 is provided on the cover plate 411; the bus bar 42 is connected to the poles 412 of two adjacent battery cells 41, so that the battery cells 41 are connected in series or in parallel. The fixing member 3 of the battery collection assembly 100 is fixedly connected to the bus bar 42 or the cover plate 411, so that the connecting piece 2 is pressed against the battery cell 41 to collect the temperature information and / or voltage information of the battery.

[0070] It should be noted that, according to the different connection states between the battery cells 41, the busbar 42 can adopt different structural forms, for example Figure 4 In the example, a bus bar 42 is provided for every two battery cells 41, and a bus bar 42 can also be connected to the poles 412 of multiple battery cells 41. The specific setting position of the battery collection component 100 can be set according to the specific collection requirements, and can be connected to the bus bar 42 or directly connected to the cover plate 411 of the battery cell 41.

[0071] Furthermore, if Figure 1 and Figure 2 As shown, a temperature collector 22 is provided on the connecting piece 2 of the battery collection component 100, which is used to collect the temperature information of the battery to be tested, and can establish a communication connection with the battery management system to transmit the collected temperature information to the battery management system. Preferably, the temperature collector 22 uses an NTC collector, and the NTC collector is protected by an epoxy plate with a hole in the middle.

[0072] In addition, the battery module 400 in this embodiment also has all the beneficial effects of the battery collection component 100 in any embodiment of the first aspect above, which will not be described in detail here.

[0073] In the third aspect of the present invention, an electric device is provided, the electric device includes the battery module 400 in any of the second aspect, the battery module 400 is used as a power supply device to supply power to the electric device, wherein the electric device includes but is not limited to electric vehicles.

[0074] In addition, the electrical equipment in this embodiment also has all the beneficial effects of the battery module 400 in any embodiment of the second aspect mentioned above, which will not be repeated here.

[0075] The basic principle of the present invention is described above in conjunction with specific embodiments. However, it should be pointed out that the advantages, strengths, effects, etc. mentioned in the present invention are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present invention. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not limitation, and the above details do not limit the present invention to being implemented by adopting the above specific details.

[0076] The block diagrams of the devices, apparatuses, equipment and systems involved in the present utility model are only illustrative examples and are not intended to require or imply that they must be connected, arranged and configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment and systems can be connected, arranged and configured in any manner. Words such as "including", "comprising", "having" and the like are open words, referring to "including but not limited to" and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to" and can be used interchangeably with them. It should also be noted that in the apparatus and equipment of the present utility model, each component can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present utility model.

[0077] In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Those skilled in the art will recognize some variations, modifications, changes, additions and sub-combinations thereof. The above description of the disclosed aspects is provided to enable any technician in the field to make or use the utility model. Various modifications to these aspects are very obvious to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the utility model. Therefore, the utility model is not intended to be limited to the aspects shown herein, but in accordance with the widest range consistent with the principles and novel features of this utility model.

[0078] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery collection component, characterized in that: include: Acquisition board (1); A connecting piece (2), one end of the connecting piece (2) in a first direction is fixed to one side of the collecting board (1) and is electrically connected to the collecting board (1), and the other end of the connecting piece (2) is provided with a first clamping structure (21); A fixing member (3) connected and fixed to the battery to be tested, the fixing member (3) being used to press the connecting piece (2) against the battery to be tested so that the acquisition board (1) can acquire temperature information and / or voltage information of the battery to be tested; Wherein, a second clamping structure (31) is provided on a side of the fixing member (3) facing the first clamping structure (21), and the second clamping structure (31) is suitable for clamping and cooperating with the first clamping structure (21) along the first direction.

2. The battery collection assembly according to claim 1, characterized in that: The fixing member (3) is provided with a receiving cavity (32), and a first opening (321) is provided on one side of the fixing member (3) facing the connecting piece (2) in a first direction, and the first opening (321) is communicated with the receiving cavity (32), so that the first clamping structure (21) extends from the first opening (321) into the receiving cavity (32) and cooperates with the second clamping structure (31).

3. The battery collection assembly according to claim 2, characterized in that: The fixing member (3) is provided with a second opening (322) on a side facing the battery to be tested, the second opening (322) being communicated with the accommodating cavity (32), the second clamping structure (31) being provided on an inner wall surface of the accommodating cavity (32) opposite to the second opening (322), the second clamping structure (31) pressing the first clamping structure (21) against the second opening (322) so as to press the connecting sheet (2) against the battery to be tested.

4. The battery collection assembly according to claim 2, characterized in that: One of the first clamping structure (21) and the second clamping structure (31) comprises a slot (311), and the other comprises an inserting piece (211), wherein the inserting piece (211) is inserted into the slot (311) to form a clamping fit; The slots (311) are arranged at intervals along the first direction, the inserting pieces (211) are arranged at intervals along the first direction, and at least part of the slots (311) and at least part of the inserting pieces (211) are plugged together along the first direction.

5. The battery collection assembly according to claim 4, characterized in that: The inserting piece (211) or the slot (311) is arranged on the connecting piece (2) in an inclined manner in a direction away from the fixing member (3).

6. The battery collection assembly according to claim 3, characterized in that: A plurality of claws (33) are provided around the second opening (322), and a plurality of slots (431) are provided on the battery to be tested. The plurality of claws (33) are used to engage with the plurality of slots (431) to fix the fixing member (3) to the battery to be tested.

7. The battery collection assembly according to claim 6, characterized in that: A plurality of the claws (33) are arranged at intervals along the second direction, and any one of the claws (33) can be engaged with the slot (431) to adjust the height of the accommodating cavity (32) along the second direction, wherein the second direction is perpendicular to the first direction.

8. The battery collection assembly according to claim 2, characterized in that: The fixing member (3) is provided with a connecting wall (34) on one side facing the battery to be tested, the connecting wall (34) is provided with a buckle (35), the battery to be tested is provided with a matching groove (433), and the buckle (35) is used to engage with the matching groove (433) to fix the fixing member (3) to the battery to be tested; A sealing ring (36) is provided on the side of the connecting wall (34) facing the battery to be tested, and the sealing ring (36) is used for sealing connection with the battery to be tested.

9. A battery module, characterized in that: include: A plurality of battery cells (41), each of the battery cells (41) being provided with a cover plate (411) on the top, and the cover plate (411) being provided with a pole (412); A busbar (42) connected to the poles (412) of two adjacent battery cells (41); The battery collection assembly according to any one of claims 1 to 8, wherein the fixing member (3) is fixedly connected to the cover plate (411) or the bus bar (42).

10. An electrical device, characterized in that: include: The battery module as claimed in claim 9.

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