An integrated sampling module, a sampling assembly, a cell assembly and a battery pack

Abstract

The application relates to an integrated sampling module, a sampling assembly, a cell assembly and a battery pack. The integrated sampling module comprises an insulating shell, a first conductive part, a second conductive part and a circuit board. At least a part of the circuit board is located in the insulating shell. The first conductive part and the second conductive part are independently arranged on opposite sides of the circuit board. The first conductive part is multiple and is arranged in a first direction. The multiple first conductive parts are electrically connected with the circuit board. The second conductive part is two oppositely arranged parts and is arranged in the first direction. The two second conductive parts are electrically connected with the circuit board. The insulating shell is provided with a first through hole corresponding to the first conductive part and a second through hole corresponding to the second conductive part. Temperature sampling and voltage sampling are integrated together, operation is convenient, and the automation of cell assembly and welding can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy battery, in particular to an integrated sampling module, a sampling assembly, a cell assembly and a battery pack. BACKGROUND

[0002] In the new energy battery industry, when soft package cells are stacked into a battery module, the electrical connection of the cells and the voltage and temperature sampling are mainly operated and realized on the tab surface of the battery module. When the cells need to be connected in a head-to-tail manner, the tab surface inside the battery module also loses the operation space. At this time, due to the limitation of space, the voltage and temperature sampling of the cells will be difficult to operate or difficult to realize automation.

[0003] The existing easily thought way is to arrange the PCB board in the gap beside the cell tab, and to realize voltage sampling by welding the sampling sheet connected on the PCB board with the tab. This way is complicated to operate and difficult to realize automation. Moreover, the cell module is made layer by layer in the order of stacking, welding, stacking… Before welding the sampling sheet, in order to avoid blocking the tab, the sampling sheet needs to be pre-fixed aside. After stacking the cells of the layer, the corresponding sampling sheet is loosened and placed on the tab for welding. This method is low in efficiency and relies on manual work. SUMMARY

[0004] The present application provides an integrated sampling module, a sampling assembly, a cell assembly and a battery pack to solve one or several technical problems existing in the prior art.

[0005] The technical solution of the present application to solve the above technical problems is as follows: an integrated sampling module, comprising an insulating shell, a first conductive part, a second conductive part and a circuit board, at least a part of the circuit board is located in the insulating shell, the first conductive part and the second conductive part are independently arranged on opposite sides of the circuit board respectively; the first conductive part is a plurality of and is arranged in a first direction, the plurality of first conductive parts are electrically connected with the circuit board respectively; the second conductive part is two oppositely arranged and both extend in the first direction, the two second conductive parts are electrically connected with the circuit board respectively; the insulating shell is provided with a first through hole corresponding to the first conductive part and a second through hole corresponding to the second conductive part.

[0006] The beneficial effects of the present application are: the integrated sampling module of the present application integrates temperature sampling and voltage sampling together, which is convenient to operate and can realize the automation of cell assembly and welding. Since the voltage collection sheet and the temperature collection sheet can be integrated with the tab bracket in advance, they can be laid under the cell tab as a whole during operation. After welding, the integrated sampling module is installed at one time, which realizes voltage sampling and temperature sampling. Moreover, this assembly process is simple in material, clear in process and does not rely on manual work, which can realize automation.

[0007] Based on the technical scheme, the application further has the following improvements.

[0008] Further, the first conductive member comprises a first connecting part and a first elastic part, the first connecting part is connected to one side of the circuit board, at least one first elastic part is connected to the first connecting part, the first elastic part is arranged corresponding to the first through hole on the insulating shell and extends out of the insulating shell from the first through hole.

[0009] The beneficial effect of the above further scheme is that the first connecting part can be connected to the circuit board, and the first elastic part can be elastically contacted with the voltage collection sheet to collect voltage.

[0010] Further, two first elastic parts are connected to the first connecting part, and the two first elastic parts are symmetrically arranged on two sides of the first connecting part.

[0011] The beneficial effect of the above further scheme is that the two first elastic parts can be reliably contacted with the temperature collection sheet.

[0012] Further, the second conductive member comprises a second connecting part and a second elastic part, the second connecting part is connected to the other side of the circuit board, at least one second elastic part is connected to the second connecting part, and the second elastic part is arranged corresponding to the second through hole on the insulating shell and extends out of the insulating shell from the second through hole.

[0013] The beneficial effect of the above further scheme is that the temperature collection sheet is essentially a thermistor, and the temperature is collected by measuring the resistance value, and the thermistor is connected to the circuit, and two second conductive members are required. The second elastic part on the second conductive member is in close contact with the temperature collection sheet, and the temperature detection signal is transmitted.

[0014] Further, a guide protrusion extending in the first direction is arranged on the outer side wall of the insulating shell.

[0015] The beneficial effect of the above further scheme is that the collection channel of the tab support is conveniently connected.

[0016] A sampling assembly comprises the integrated sampling module, and further comprises a tab support which is insulated from the first conductive member and the second conductive member, the tab support is provided with a collection channel penetrating in the first direction, and the insulating shell is inserted into the collection channel; a voltage collection sheet which is a metal conductor is arranged on a support platform of the tab support, and a voltage collection part of the voltage collection sheet extends into the collection channel and is in contact with and electrically connected to the first conductive member.

[0017] The sampling assembly of the application, the integrated sampling module can be inserted with the tab support, convenient to assemble, the voltage and temperature sampling of multiple battery cells can be realized by one-time insertion installation, convenient to operate, high working efficiency, easy to realize automation.

[0018] Further, the main structure of the voltage collection piece is assembled on the tab support, the tab support is also provided with a temperature collection piece, the main structure of the temperature collection piece is covered with an insulating layer and connected with the main structure of the voltage collection piece, and the temperature collection part of the temperature collection piece extends into the collection channel as a metal conductor and contacts part of the second conductive part.

[0019] The beneficial effect of the above further scheme is that by setting the temperature collection piece, the temperature of the voltage collection piece can be directly detected to reflect the temperature of the tab of the battery cell.

[0020] Further, the voltage collection part of the voltage collection piece is provided with a first contact point protruding towards the integrated sampling module, and the temperature collection part of the temperature collection piece is provided with a second contact point protruding towards the integrated sampling module.

[0021] The beneficial effect of the above further scheme is that the first contact point and the second contact point can realize close contact with the corresponding structure of the integrated sampling module.

[0022] Further, the inner side wall of the collection channel of the tab support is provided with a limiting structure for clamping and limiting the voltage collection part and the temperature collection part.

[0023] The beneficial effect of the above further scheme is that the limiting structure can realize structural limiting of the voltage collection part and the temperature collection part.

[0024] Further, the inner side wall of the collection channel is provided with a guide channel extending along the axis thereof and matched with the guide protruding rib on the insulating shell.

[0025] Further, the tab support is made of high-temperature resistant material.

[0026] The beneficial effect of the above further scheme is that the tab supports arranged in stacks can form a fire wall to block the heat spread between the stacks of battery cells.

[0027] A battery cell assembly comprises the above sampling assembly and at least one stack of battery cells, the tab support for supporting the tab is arranged below the tab of each battery cell of the stack of battery cells, and the main structure of the voltage collection piece arranged on each tab support is welded on the corresponding tab.

[0028] The electric cell assembly has the advantages that the electric cell assembly is convenient to assemble and operate, and can realize the automation of electric cell assembly and welding.

[0029] Further, the liquid cooling plate is arranged on the non-tab side of the electric cell stack, and the exhaust hole is arranged on the liquid cooling plate at a position corresponding to the tab side of the electric cell stack.

[0030] The exhaust hole arranged on the liquid cooling plate is beneficial to the rapid discharge of high-temperature flame and gas to the outside of the electric cell assembly, and avoids affecting other electric cells.

[0031] The battery pack comprises a plurality of the above-mentioned electric cell assemblies, and further comprises a battery pack shell, wherein the electric cell assemblies are installed in the battery pack shell, and the circuit boards of the integrated sampling modules on the electric cell assemblies are respectively plugged into the sampling sockets in the battery pack shell through plugs and transmit sampling signals.

[0032] The battery pack can realize the automation of electric cell assembly and welding. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the integrated sampling module of the present application;

[0034] Figure 2 It is a schematic diagram of the three-dimensional exploded structure of the integrated sampling module of the present application;

[0035] Figure 3 It is a schematic diagram of the three-dimensional structure of the first conductive member of the present application;

[0036] Figure 4 It is a schematic diagram of the three-dimensional structure of the second conductive member of the present application;

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the voltage collection sheet of the present application;

[0038] Figure 6 It is a schematic diagram of the three-dimensional structure of the temperature collection sheet of the present application;

[0039] Figure 7 It is a schematic diagram of the three-dimensional structure of the tab support of the present application;

[0040] Figure 8 It is a schematic diagram of the three-dimensional structure of the voltage collection sheet cooperating with the tab support of the present application;

[0041] Figure 9 It is a schematic diagram of the structure of the voltage collection sheet and the temperature collection sheet respectively cooperating with the tab support and the tab of the present application;

[0042] Figure 10 It isFigure 9 Enlarged structural schematic view of middle A part;

[0043] Figure 11 Stereogram of integrated sampling module cooperating with tab support of the application;

[0044] Figure 12 Front view structural schematic view of integrated sampling module cooperating with tab support of the application;

[0045] Figure 13 Stereogram of Figure 12 Sectional view structural schematic view of middle A-A;

[0046] Figure 14 Sectional view structural schematic view of middle B-B; Figure 12

[0047] Stereogram of Figure 15 Plan view structural schematic view of battery cell assembly of the application;

[0048] Figure 16 Plan view structural schematic view of battery cell assembly of the application;

[0049] Figure 17 Sectional view structural schematic view of middle A-A. Figure 16

[0050] In the drawings, the components represented by each reference numeral are listed as follows:

[0051] 10, battery pack;

[0052] 100, integrated sampling module; 110, insulating shell; 111a, first through hole; 111b, second through hole; 112, guide protrusion; 120, hard circuit board; 122, first conductive piece; 122a, first elastic part; 122b, first connecting part; 123, second conductive piece; 123a, second elastic part; 123b, second connecting part; 123c, connecting lug plate; 130, soft circuit board; 140, plug; 150, limiting column; 160, limiting cylinder;

[0053] 200, battery cell; 210, tab;

[0054] 300, tab support; 310, collection channel; 320, platform; 330, guide through slot; 340, limiting protrusion;

[0055] 400, voltage collection sheet; 410, first contact; 420, voltage collection part;

[0056] 500, temperature collection sheet; 510, second contact; 520, temperature collection part;

[0057] ​600, Cell assembly; 610, Cell stack; 620, Liquid cooling plate; 630, Vent. Detailed Implementation

[0058] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0059] like Figures 1-4 As shown, an integrated sampling module of this embodiment includes an insulating shell 110, a first conductive element 122, a second conductive element 123, and a circuit board. At least a portion of the circuit board is located within the insulating shell 110. The first conductive element 122 and the second conductive element 123 are independently arranged on opposite sides of the circuit board. Multiple first conductive elements 122 are spaced apart along a first direction, and each of the multiple first conductive elements 122 is electrically connected to the circuit board. Two second conductive elements 123 are spaced apart and both extend along the first direction, and each of the two second conductive elements 123 is electrically connected to the circuit board. The insulating shell 110 has a first through hole 111a corresponding to and engaging with the first conductive element 122 and a second through hole 111b corresponding to and engaging with the second conductive element 123. The two second conductive elements 123 can be spaced apart along a second direction, where the first direction is... Figure 2 The direction indicated by the middle arrow A is the second direction. Figure 2 The direction indicated by the middle arrow B. When specifically applied to a battery cell stack, the first direction is the stacking direction of the battery cells, and the second direction is the laying direction of the battery cells. The temperature of the battery cell tabs in the battery cell stack can be collected using the second conductive element 123, and the voltage of the battery cell tabs of each layer of battery cells in the battery cell stack can be collected using the first conductive element 122.

[0060] like Figures 2-4 As shown, the first conductive element 122 in this embodiment includes a first connecting portion 122b and a first elastic portion 122a. The first connecting portion 122b is connected to one side of the circuit board, and at least one first elastic portion 122a is connected to the first connecting portion 122b. The first elastic portion 122a is arranged corresponding to and extends out of the insulating shell 110 through a first through hole 111a. By exposing the first elastic portion 122a outside the insulating shell 110, it can be connected to the circuit board through the first connecting portion, and it can make elastic contact with the voltage acquisition chip to acquire voltage through the first elastic portion.

[0061] like Figure 3As shown, two first elastic parts 122a are connected to the first connecting part 122b of the embodiment, and the two first elastic parts 122a are symmetrically arranged on both sides of the first connecting part 122b. By arranging two first elastic parts, the contact with the contact of the temperature acquisition sheet can be more reliable.

[0062] As shown, Figure 4 As shown, the second conductive part 123 of the embodiment includes a second connecting part 123b and a second elastic part 123a, the second connecting part 123b is connected to the other side of the circuit board, at least one second elastic part 123a is connected to the second connecting part 123b, the second elastic part 123a is arranged corresponding to the second through hole 111b on the insulating shell 110 and extends out of the insulating shell 110 from the second through hole 111b. The second connecting part 123b is also integrally connected with a connecting lug plate 123c, which can be used for welding and fixing with the pad on the circuit board. Since the temperature acquisition sheet is essentially a thermistor, the temperature is collected by measuring the resistance value, and the thermistor is connected to the circuit, which requires two second conductive parts. The second elastic part arranged on the second conductive part realizes close contact with the temperature acquisition sheet, and further realizes transmission of the temperature detection signal.

[0063] As shown, Figure 1 and Figure 2 As shown, the outer side wall of the insulating shell 110 of the embodiment is provided with a guide ridge 112 extending in the first direction. It is convenient to adaptively connect with the acquisition channel of the tab support.

[0064] A further scheme of the insulating shell 110 of the embodiment is that a structure of butt joint of two half shells can be adopted, a limiting cylinder 160 and a limiting column 150 can be arranged on the inner side of the half shell, then when the two half shells are butt jointed, the limiting cylinder 160 and the limiting column 150 of the two half shells can correspond to each other and be inserted and matched, realizing close connection of the insulating shell.

[0065] Among them, the circuit board of the embodiment can adopt the existing circuit board for battery module. For example, a combination of soft circuit board 130 and hard circuit board 120 can be adopted, the soft circuit board 130 can be arranged outside the insulating shell 110, the hard circuit board 120 can be arranged inside the insulating shell 110, and the plug 140 can be arranged on the soft circuit board 130, used for plug-in with the socket of the sampling wire harness in the battery pack. Of course, it can also adopt the structure of all being hard circuit board, or all being soft circuit board. When the conductive part is connected, the first conductive part 122 and the second conductive part 123 can be respectively welded on the pads on both sides of the substrate of the hard circuit board 120.

[0066] The integrated sampling module of the embodiment integrates temperature sampling and voltage sampling together, is convenient to operate, and can realize the automation of cell assembly and welding. Since the voltage collection sheet and the temperature collection sheet can be integrated with the tab support in advance, the voltage collection sheet and the temperature collection sheet can be laid under the cell tab as a whole during operation, the integrated sampling module is installed at one time after welding, and voltage sampling and temperature sampling can be realized. Moreover, the assembly process is simple in material, clear in process, and independent of manual operation, and can realize automation.

[0067] As shown in Figures 5-14 , a sampling assembly of the embodiment includes the integrated sampling module 100, and further includes a tab support 300 insulated from the first conductive part 122 and the second conductive part 123, the tab support 300 is provided with a collection channel 310 penetrating in the first direction, and the insulating shell 110 is inserted into the collection channel 310; the support platform of the tab support 300 is provided with a voltage collection sheet 400 as a metal conductor, and the voltage collection part 420 of the voltage collection sheet 400 extends into the collection channel 310 and is in contact with and electrically connected to the first conductive part 122.

[0068] As shown in Figure 6 and Figure 10 , the tab support 300 is further provided with a temperature collection sheet 500, the main structure of the voltage collection sheet 400 is assembled on the tab support 300, the main structure of the temperature collection sheet 500 is covered with an insulating layer and connected to the main structure of the voltage collection sheet 400, and the temperature collection part 520 of the temperature collection sheet 500 extends into the collection channel 310 as a metal conductor and is in contact with part of the structure of the second conductive part 123. By arranging the temperature collection sheet, the temperature of the cell tab can be reflected by directly detecting the temperature of the voltage collection sheet.

[0069] As shown in Figure 5 , specifically, the voltage collection part 420 of the voltage collection sheet 400 is provided with a first contact 410 protruding to the integrated sampling module 100, and the temperature collection part 520 of the temperature collection sheet 500 is provided with a second contact 510 protruding to the integrated sampling module 100. The first contact and the second contact can realize close contact with the corresponding structure of the integrated sampling module.

[0070] Specifically, the main shape of the voltage collection sheet 400 can be a long and straight sheet, which is divided into two strands at one end and bent several times, and the end of each strand has a convex structure as a first contact of the voltage collection part. The head of the temperature collection sheet 500 has a thermistor, and two bent and turned metal strips are connected to the thermistor, and the ends of the two metal strips have a convex structure as a second contact 510.

[0071] AsFigure 7 As shown, the inner wall of the acquisition channel 310 of the electrode bracket 300 in this embodiment is provided with a limiting structure for locking and limiting the voltage acquisition unit 420 and the temperature acquisition unit 520. The limiting structure can use a limiting protrusion for limiting, and the setting of the limiting structure can realize the structural limitation of the voltage acquisition unit and the temperature acquisition unit.

[0072] like Figure 7 As shown, the inner wall of the acquisition channel 310 in this embodiment is provided with a guide groove 330 that extends along its own axis and is adapted to the guide protrusion 112 on the insulating shell 110.

[0073] Preferably, the tab support 300 is made entirely or partially of a high-temperature resistant material. Specifically, the tab support 300 may contain high-temperature resistant material or have patches made of high-temperature resistant material attached to it. The stacked tab supports can form a firewall to prevent heat spread between the stacks of cells.

[0074] In this embodiment, during the assembly of the sampling component, when the voltage acquisition piece 400 is combined with the tab support 300, the long, straight main body of the voltage acquisition piece 400 is laid flat on the platform 320 of the tab support 300, and the two forked branches are respectively flattened and fixed to the inner wall of the acquisition channel 310, and positioned by the limiting protrusion 340 to ensure the accurate position of the two first contacts 410. When the temperature acquisition piece 500 is combined with the voltage acquisition piece 400 and the tab support 300, the thermistor part at its head is fixed to the surface of the long, straight part of the voltage acquisition piece 400, and the two bent metal strips are also flattened and fixed to the inner wall of the acquisition channel 310, and positioned by the limiting protrusion 340 to ensure the accurate position of the two second contacts 510. When the two battery cells 200 are combined with the above three components, the two tabs 210 are stacked and laid flat on the voltage acquisition piece 400, and three layers are welded together. Figures 11-14 As shown, when the integrated sampling module 100 is combined with the aforementioned components, the integrated sampling module 100 is longitudinally inserted into the acquisition channel 310 of the tab bracket 300. The guide protrusion 112 and the guide groove 330 fit together. The first elastic portion 122a of the first conductive element 122 contacts the first contact 410, and the second elastic portion 123a of the second conductive element 123 contacts the second contact 510. The distance between the two contacts is slightly smaller than the distance between the two elastic portions. The elastic portions are compressed by the contacts, thus ensuring close contact.

[0075] The sampling component in this embodiment has an integrated sampling module that can be plugged into the tab bracket, making assembly convenient. A single plug-in installation can sample the voltage and temperature of multiple cells, making operation convenient, work efficiency high, and easy to automate.

[0076] The embodiment also provides an electric cell assembly, which comprises the sampling assembly and at least one electric cell stack 610, and each of the electric cell stacks 610 is provided with an ear support 300 under the tab 210 of each electric cell 200 for supporting the tab 210, and the main body structure of the voltage collection sheet 400 arranged on each ear support 300 is welded on the corresponding tab 210. The electric cell assembly is convenient to assemble and operate, and can realize the automation of electric cell assembly and welding.

[0077] As shown in Figures 15-17 The electric cell assembly also comprises a liquid cooling plate 620 arranged on the non-tab side of the electric cell stack 610, and the liquid cooling plate is provided with an exhaust hole 630 corresponding to the tab side of the electric cell stack 610. The arrangement of the exhaust hole on the liquid cooling plate is beneficial to the rapid discharge of high-temperature flame and gas outside the electric cell assembly, and avoids affecting other electric cells.

[0078] Optionally, the liquid cooling plate 620 can be arranged on the non-tab side of the electric cell stack 610 through heat-conducting glue, or the liquid cooling plate 620 can be fixed on the non-tab side of the electric cell stack 610 through other connecting members.

[0079] When a plurality of electric cells 200 are stacked to form the electric cell assembly 600, the first elastic part 122a of each layer is in contact with the first contact 410 of the layer, and the voltage signal of the electric cell is led out through the path of "tab -> sampling sheet -> contact -> hard circuit board -> soft circuit board", so as to realize the voltage sampling of the plurality of electric cells. The second elastic part 123a of a certain layer is in contact with the second contact 510 of the layer. Since the temperature collection sheet 500 collects the temperature on the surface of the voltage collection sheet 400, and the voltage collection sheet 400 and the tab 210 are both metal materials with large thermal conductivity, it can be considered that the data collected by the temperature collection sheet 500 is the temperature of the tab 210, which also reflects the temperature of the electric cell 200 to some extent.

[0080] A plurality of ear supports 300 are arranged between the plurality of electric cell stacks of the electric cell assembly 600, that is, the positions where the tabs are connected head to tail, and the cross section of the combination of the ear supports 300 basically forms a complete blocking surface except for a small assembly gap and a gap for placing the tab 210. Since the ear support 300 is made of or partially contains or has high-temperature plastic, high-temperature resistant metal, mica sheet and other flame-retardant and high-temperature resistant materials on the surface, the above-mentioned blocking surface can well block or delay the diffusion of high-temperature flame and gas. Therefore, when one or more electric cells in a stack of electric cells are in thermal runaway, the ear supports stacked into a stack can play a role of thermal blocking, so as to avoid the direct influence on the adjacent electric cell stack, thereby reducing the harm caused by thermal runaway and delaying the development speed of thermal runaway.

[0081] The cell assembly of the embodiment can be assembled in advance, laid under the cell tab as a whole during operation, and installed with the integrated sampling module after welding, so that the voltage sampling of multiple cells and the temperature sampling of a certain cell can be realized, and the material is simple and the process is clear, which is independent of manual operation and can realize automation.

[0082] The embodiment also provides a battery pack 10, which comprises a plurality of the above-mentioned cell assemblies 600 and a battery pack shell, the cell assemblies 600 are installed in the battery pack shell, and the circuit boards of the integrated sampling modules 100 on the cell assemblies 600 are respectively plugged with sampling sockets in the battery pack shell through the plugs 140 and transmit sampling signals. The battery pack of the embodiment can realize cell assembly and welding automation.

[0083] In the description of the present application, it should be understood that the terms "longitudinal", "upper", "lower", "inner", "outer", "axial" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0084] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0085] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0086] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature is "under", "below" and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0087] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description 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 appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0088] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A sampling component, characterized in that, The system includes an integrated sampling module (100), comprising an insulating shell (110), a first conductive element (122), a second conductive element (123), and a circuit board. At least a portion of the circuit board is located within the insulating shell (110). The first conductive element (122) and the second conductive element (123) are independently arranged on opposite sides of the circuit board. There are multiple first conductive elements (122) arranged at intervals along a first direction, and each of the multiple first conductive elements (122) is electrically connected to the circuit board. There are two second conductive elements (123) arranged opposite to each other and extending along the first direction, and each of the two second conductive elements (123) is electrically connected to the circuit board. The insulating shell (110) has a first through hole (111a) corresponding to the first conductive element (122) and a second through hole (111b) corresponding to the second conductive element (123). The sampling assembly also includes a tab support (300) that is insulated from the first conductive element (122) and the second conductive element (123) respectively. The tab support (300) has a collection channel (310) that runs through the first direction. The insulating shell (110) is inserted into the collection channel (310). The support platform of the tab support (300) is provided with a voltage acquisition piece (400) that serves as a metal conductor. The voltage acquisition part (420) of the voltage acquisition piece (400) extends into the collection channel (310) and contacts and conducts electricity with the first conductive element (122). The main structure of the voltage acquisition piece (400) is mounted on the tab bracket (300). The tab bracket (300) is also provided with a temperature acquisition piece (500). The main structure of the temperature acquisition piece (500) is covered with an insulating layer and is in contact with the main structure of the voltage acquisition piece (400). The temperature acquisition part (520) of the temperature acquisition piece (500) extends into the acquisition channel (310) as a metal conductor and is in contact with part of the structure of the second conductive element (123).

2. The sampling component according to claim 1, characterized in that, The first conductive element (122) includes a first connecting portion (122b) and a first elastic portion (122a). The first connecting portion (122b) is connected to one side of the circuit board. At least one first elastic portion (122a) is connected to the first connecting portion (122b). The first elastic portion (122a) is arranged corresponding to a first through hole (111a) on the insulating shell (110) and extends out of the insulating shell (110) from the first through hole (111a).

3. The sampling component according to claim 2, characterized in that, Two first elastic parts (122a) are connected to the first connecting part (122b), and the two first elastic parts (122a) are symmetrically arranged on both sides of the first connecting part (122b).

4. A sampling component according to claim 2, characterized in that, The second conductive element (123) includes a second connecting portion (123b) and a second elastic portion (123a). The second connecting portion (123b) is connected to the other side of the circuit board. At least one second elastic portion (123a) is connected to the second connecting portion (123b). The second elastic portion (123a) is arranged corresponding to the second through hole (111b) on the insulating shell (110) and extends out of the insulating shell (110) from the second through hole (111b).

5. A sampling component according to claim 1, characterized in that, The outer side wall of the insulating shell (110) is provided with a guide ridge (112) extending in the first direction.

6. A sampling component according to any one of claims 1 to 5, characterized in that, The voltage acquisition section (420) of the voltage acquisition chip (400) is provided with a first contact (410) protruding into the integrated sampling module (100), and the temperature acquisition section (520) of the temperature acquisition chip (500) is provided with a second contact (510) protruding into the integrated sampling module (100).

7. A sampling component according to any one of claims 1 to 5, characterized in that, The inner wall of the acquisition channel (310) of the electrode bracket (300) is provided with a limiting structure for locking and limiting the voltage acquisition part (420) and the temperature acquisition part (520).

8. A sampling component according to any one of claims 1 to 5, characterized in that, The inner wall of the acquisition channel (310) is provided with a guide groove (330) that extends along its own axis and is adapted to the guide protrusion (112) on the insulating shell (110).

9. A sampling component according to any one of claims 1 to 5, characterized in that, The electrode bracket (300) is made of high-temperature resistant material in whole or in part.

10. A battery cell assembly, characterized in that, The sampling component includes any one of claims 1 to 9, and further includes at least one stack of battery cells (610), wherein each battery cell (200) of the stack of battery cells (610) is provided with a tab support (300) for supporting the tab (210) below the tab (210), and the main structure of the voltage acquisition chip (400) provided on each tab support (300) is welded to the corresponding tab (210).

11. A cell assembly according to claim 10, characterized in that, It also includes a liquid cooling plate (620), which is disposed on the non-tab side of the cell stack (610); the liquid cooling plate is provided with an exhaust hole (630) at a position corresponding to the tab side of the cell stack (610).

12. A battery pack, characterized in that, The battery pack assembly (600) as described in claim 10 or 11 is further comprising a battery pack housing, wherein the battery pack assembly (600) is installed within the battery pack housing, and the circuit board of the integrated sampling module (100) on the battery pack assembly (600) is connected to the sampling socket in the battery pack housing via a plug (140) to transmit sampling signals.

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