Charging and discharging connecting device for soft package battery cell

Abstract

The utility model discloses a charging and discharging connecting device for a soft package battery cell, and belongs to the technical field of batteries. The charging and discharging connecting device for the soft package battery cell comprises an insulating base and two connecting assemblies, the insulating base is provided with two insulating guide rails which are oppositely arranged, and the two connecting assemblies are movably installed on one of the two insulating guide rails, or the two connecting assemblies are movably installed on the two insulating guide rails respectively. Thus, the mounting positions of the two connecting assemblies on the insulating base can be flexibly adjusted, the connecting assembly mounted on the insulating base can move along the extending mode of the insulating guide rail, and the mounting position of at least one connecting assembly on the insulating guide rail can be further adjusted so as to adapt to different types of soft package battery cells. The applicability of the soft package battery cell charging and discharging connection device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a charging and discharging connection device for soft-pack battery cells. Background Technology

[0002] Currently, lithium-ion batteries possess advantages such as high operating voltage, high energy density, long cycle life, lightweight, and environmental friendliness, and are widely used in 3C products, power batteries, and energy storage devices. Pouch batteries are batteries with flexible casings. The structure of a pouch battery mainly includes positive and negative electrodes, an electrolyte, a separator, and an aluminum-plastic film casing. Compared to aluminum-cased and steel-cased batteries, pouch batteries offer advantages such as high energy density, high yield rate, fast heat dissipation, and low cost, and have broad application prospects and development potential.

[0003] A pouch cell charge / discharge connection device is a tool used to clamp the positive and negative tabs of a pouch cell to perform charge / discharge tests. In other words, the device electrically connects the pouch cell to a power source to test the performance and energy of the pouch cell.

[0004] However, current pouch cell charging and discharging connection devices are usually only applicable to one type of pouch cell, resulting in low applicability of pouch cell charging and discharging connection devices. Utility Model Content

[0005] This utility model provides a charging and discharging connection device for pouch cells. It solves the problem of low applicability of existing charging and discharging connection devices for pouch cells. The technical solution is as follows:

[0006] The soft-pack battery cell charging and discharging connection device includes: an insulating base and two connecting components;

[0007] The insulating base has two oppositely arranged insulating rails, and the insulating base is used to support the soft-pack battery cell.

[0008] Both connecting components are movably mounted on one of the two insulating guide rails, or the two connecting components are movably mounted on both of the insulating guide rails respectively;

[0009] Both connecting components are movable along the extension direction of the insulating guide rail, and the two connecting components are respectively used to connect the positive and negative tabs of the pouch cell.

[0010] Optionally, any one of the connecting components includes a conductive connecting piece, a first connecting member, and a clamping structure;

[0011] The conductive connecting piece is located on the insulating guide rail, and the first connector is used to connect the conductive connecting piece and the insulating guide rail;

[0012] The clamping structure is connected to the side of the conductive connecting piece away from the insulating base, and is used to press the positive electrode tab or the negative electrode tab against the conductive connecting piece.

[0013] Optionally, the insulating base further includes an insulating base plate, and one of the two insulating guide rails includes a first strip-shaped through hole, the first strip-shaped through hole being located at the end of the insulating base plate;

[0014] The conductive connecting piece has a first connecting through hole, and the first connecting member includes a first bolt and a first nut;

[0015] When the connecting assembly is connected to the first strip-shaped through hole, the first bolt passes through the connecting through hole and the first strip-shaped through hole, and the first nut is sleeved on one end of the first bolt.

[0016] Optionally, the clamping structure includes a support member and a pressure member;

[0017] The support member is fixedly connected to the side of the conductive connecting piece away from the insulating base, and together with the conductive connecting piece, they form a receiving cavity, which is used to receive the positive electrode tab or the negative electrode tab.

[0018] The pressure member is movably connected to the support member, and one end of the pressure member can press the positive electrode tab or the negative electrode tab onto the conductive connecting piece.

[0019] Optionally, the support member has a threaded adjustment through hole, and the pressure member includes a second bolt and a voltage-conducting tensioning plate;

[0020] One end of the second bolt passes through the threaded adjustment hole to extend into the receiving cavity;

[0021] The conductive clamping piece is located between the second bolt and the conductive connecting piece, and is connected to one end of the second bolt.

[0022] Optionally, the support member includes a connecting plate and a supporting plate;

[0023] The support plate is disposed opposite to the conductive voltage clamping plate, and the threaded adjustment through hole is located on the support plate;

[0024] The connecting plate is located between the support plate and the voltage-conducting tension plate, and both ends of the connecting plate are fixedly connected to the support plate and the voltage-conducting tension plate, respectively.

[0025] Optionally, the other of the two insulating guide rails is movably connected to the insulating base plate and can move along the arrangement direction of the two insulating guide rails;

[0026] The other insulating guide rail has a second strip-shaped through hole. When the connecting assembly is connected to the second strip-shaped through hole, the first bolt passes through the second strip-shaped through hole and the connecting through hole, and the first nut is sleeved on one end of the first bolt.

[0027] Optionally, the other insulated rail includes a strip rail and two second connectors;

[0028] The second strip-shaped through hole is located on the strip-shaped guide rail;

[0029] The two second connectors are located at both ends of the strip rail, and the second connectors are used to connect the strip rail to the insulating base plate.

[0030] Optionally, the insulating base plate has two oppositely arranged third strip-shaped through holes, and both ends of the strip-shaped guide rail have second connecting through holes, the second connecting member including a third bolt and a second nut;

[0031] The third strip-shaped through hole is located at the edge of the insulating base, and the extending direction of the second strip-shaped through hole is parallel to the arrangement direction of the two insulating guide rails;

[0032] The third bolt passes through the second connecting through hole and the third strip-shaped through hole, and the second nut is sleeved on one end of the third bolt.

[0033] Optionally, the soft-pack battery cell charging and discharging connection device further includes two insulating baffles, which are respectively connected to the two connection components;

[0034] When both connecting components are movably mounted on one of the two insulating guide rails, both insulating baffles are located between the two connecting components.

[0035] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:

[0036] A charging and discharging connection device for pouch cells is provided, comprising an insulating base and two connecting components. The insulating base has two opposing insulating rails, and each connecting component is movably mounted on one of the two insulating rails, or the two connecting components are movably mounted on both insulating rails respectively. This allows for flexible adjustment of the mounting positions of the two connecting components on the insulating base. Furthermore, the connecting components mounted on the insulating base can move along the extension of the insulating rails, further adjusting the mounting position of at least one connecting component on the insulating rails to accommodate different types of pouch cells. This improves the applicability of the charging and discharging connection device for pouch cells and solves the problem of low applicability in related technologies. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of a soft-pack battery cell charging and discharging connection device provided in an embodiment of this utility model;

[0039] Figure 2 This is a schematic diagram of the structure of an insulating base provided in an embodiment of this utility model;

[0040] Figure 3 This is a schematic diagram of the structure of a connecting component provided in an embodiment of this utility model. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0042] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0043] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0044] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0045] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a soft-pack battery cell charging and discharging connection device 10 provided in an embodiment of this utility model. Figure 2 This is a schematic diagram of the structure of an insulating base 11 provided in an embodiment of the present utility model; the soft-pack battery cell charging and discharging connection device 10 may include: an insulating base 11 and two connecting components 12.

[0046] The insulating base 11 is used to support the pouch cell. When testing the pouch battery, the pouch cell can be placed on the insulating base 11. The insulating base 11 may have two oppositely arranged insulating rails 111, which may be located at opposite ends of the insulating base 11, and the pouch cell may be located in the middle area of ​​the insulating base 11.

[0047] Both connecting components 12 are movably mounted on one of the two insulating rails 111, or both connecting components 12 are movably mounted on the insulating rails 111 respectively. Both connecting components 12 are movable along the extension direction of the insulating rails 111, and are used to connect the positive and negative tabs of the pouch cell, respectively. Both connecting components 12 are electrically connected to the test terminals of the testing equipment, thereby achieving electrical connection between the positive and negative tabs of the pouch cell and the test terminals of the testing equipment.

[0048] For example, the two insulating guide rails 111 include a first insulating guide rail 1111 and a second insulating guide rail 1112, and the two connecting components 12 include a first connecting component 12 and a second connecting component 12. In this embodiment of the present invention, the following connection methods may be included: First, both the first connecting component 12 and the second connecting component 12 are movably mounted on the first insulating guide rail 1111; Second, both the first connecting component 12 and the second connecting component 12 are movably mounted on the second insulating guide rail 1112; Third, the first connecting component 12 is movably mounted on the first insulating guide rail 1111, and the second connecting component 12 is movably mounted on the second insulating guide rail 1112; Fourth, the second connecting component 12 is movably mounted on the first insulating guide rail 1111, and the first connecting component 12 is movably mounted on the second insulating guide rail 1112.

[0049] Since the mounting positions of the two connecting components 12 on the insulating base 11 can be flexibly adjusted, and the connecting components 12 mounted on the insulating base 11 can also move along the extension of the insulating guide rail 111, the applicability of the soft-pack battery cell charging and discharging connection device 10 can be improved by adjusting the mounting position of at least one connecting component 12 to accommodate different types of soft-pack battery cells, which may include soft-pack batteries with different tab layouts.

[0050] For example, different types of pouch cells may include pouch cells with the same tab on one side and pouch cells with tabs on both sides. For pouch cells with the same tab on one side, two connecting components 12 can be mounted on the same insulating rail 111, and the distance between the two connecting components 12 can be adjusted according to the distance between the two tabs on the pouch cell with the same tab on one side. For pouch cells with tabs on both sides, two connecting components 12 can be mounted on two insulating rails 111 respectively, and the positions of the two connecting components 12 can be adjusted according to the positions of the two tabs on the pouch cells with tabs on both sides.

[0051] In summary, this utility model provides a soft-pack battery cell charging and discharging connection device 10 including an insulating base 11 and two connecting components 12. The insulating base 11 has two opposing insulating rails 111. Each connecting component 12 is movably mounted on one of the two insulating rails 111, or the two connecting components 12 are movably mounted on both insulating rails 111 respectively. This allows for flexible adjustment of the mounting positions of the two connecting components 12 on the insulating base 11. Furthermore, the connecting components 12 mounted on the insulating base 11 can move along the extension of the insulating rails 111, further adjusting the mounting position of at least one connecting component 12 on the insulating rails 111 to accommodate different types of soft-pack batteries. This improves the applicability of the soft-pack battery cell charging and discharging connection device 10 and solves the problem of low applicability in related technologies.

[0052] Please refer to Figure 1 and Figure 3 , Figure 3 This is a schematic diagram of the structure of a connecting component 12 provided in an embodiment of the present invention. In an optional embodiment, any connecting component 12 may include a conductive connecting piece 121, a first connecting member 122, and a pressing structure 123. The conductive connecting piece 121 may be located on an insulating guide rail 111, and the first connecting member 122 may be used to connect the conductive connecting piece 121 to the insulating guide rail 111. The pressing structure 123 may be connected to the side of the conductive connecting piece 121 away from the insulating base 11, and may be used to press the positive or negative electrode tab against the conductive connecting piece 121. At least a portion of the pressing structure 123 may be movably connected to the side of the conductive connecting piece 121 away from the insulating base 11, and may move in both directions away from and towards the conductive connecting piece 121.

[0053] The first connector 122 can be movably connected to the insulating rail 111 to drive the conductive connecting piece 121 and the clamping structure 123 to move along the extension direction of the insulating rail 111. During the process of installing the soft-pack battery cell into the soft-pack battery cell charging and discharging connection device 10, the positive electrode tab (or negative electrode tab) of the soft-pack battery cell can be placed between the clamping structure 123 and the conductive connecting piece 121, and then the positive electrode tab or negative electrode tab is pressed against the conductive connecting piece 121 by the clamping structure 123. At the same time, the first connector 122 can also fix the test terminal of the test equipment on the conductive connecting piece 121, thereby realizing the electrical connection between the positive electrode tab or negative electrode tab, the conductive connecting piece 121 and the test terminal.

[0054] Please refer to Figure 1 , Figure 2 and Figure 3In an optional embodiment, the insulating base 11 may further include an insulating base plate 112, one of the two insulating guide rails 111 (referred to as the first insulating guide rail 1111) includes a first strip-shaped through hole t1, the first strip-shaped through hole t1 being located at the end of the insulating base plate 112; the conductive connecting piece 121 has a first connecting through hole k1, and the first connecting member 122 includes a first bolt and a first nut (not shown in the figure); when the connecting assembly 12 is connected to the first strip-shaped through hole t1, the first bolt passes through a connecting through hole and the first strip-shaped through hole t1, and the first nut is sleeved on one end of the first bolt. When it is necessary to move the connecting assembly 12, the first nut can be rotated to loosen the first bolt, allowing the first bolt to move in the first through hole t1, thereby driving the electrical connecting piece and the clamping structure 123 to move, thus realizing the movement of the connecting assembly 12; when the connecting assembly 12 moves to the target position, the first nut can be rotated in the opposite direction to lock the first bolt, thereby fixing the electrical connecting piece to the insulating base plate 112 through the first bolt, thus realizing the locking and fixing of the connecting assembly 12.

[0055] In one exemplary embodiment, the first bolt may include a spur bolt (also known as a wing bolt), which may also be used to connect and fasten a test terminal, which may include a charging / discharging wire lug.

[0056] Please refer to Figure 1 , Figure 2 and Figure 3 In one optional embodiment, the pressing structure 123 may include a support member 1231 and a pressure member 1232; the support member 1231 is fixedly connected to the side of the conductive connecting piece 121 away from the insulating base 11, and together with the conductive connecting piece 121, forms a receiving cavity, which is used to receive the positive electrode tab or the negative electrode tab; the pressure member 1232 is movably connected to the support member 1231, and one end of the pressure member 1232 can press the positive electrode tab or the negative electrode tab onto the conductive connecting piece 121, that is, the pressure member 1232 can apply pressure toward the conductive connecting piece 121 to the positive electrode tab or the negative electrode tab.

[0057] In an optional embodiment, the support member 1231 may have a threaded adjustment through hole k2, and the pressure member 1232 includes a second bolt s1 and a voltage-conducting clamping plate s2; one end of the second bolt s1 passes through the threaded adjustment through hole k2 to extend into the receiving cavity; the voltage-conducting clamping plate s2 is located between the second bolt s1 and the conductive connecting piece 121, and is connected to one end of the second bolt s1. An operator can rotate the second bolt s1 to press the voltage-conducting clamping plate s2 against the positive or negative electrode tab, thereby applying pressure to the positive or negative electrode tab through the voltage-conducting clamping plate s2 and pressing the positive or negative electrode tab against the conductive connecting piece 121. Thus, because the contact area between the voltage-conducting clamping plate s2 and the positive or negative electrode tab is large, the connection stability between the pressure member 1232 and the positive or negative electrode tab can be improved, thereby improving the stability of the test current.

[0058] In one exemplary embodiment, the material of both the conductive connecting piece 121 and the conductive voltage clamping piece s2 may include copper, or both the conductive connecting piece 121 and the conductive voltage clamping piece s2 may be made of copper; so that the conductive connecting piece 121 and the conductive voltage clamping piece s2 have good conductivity, thereby reducing current loss and improving the accuracy of the test structure.

[0059] Please refer to Figure 3 In one optional embodiment, the support member 1231 may include a connecting plate b1 and a support plate b2; the support plate b2 is disposed opposite to the conductive tension piece s2, and a threaded adjustment through hole k2 is located on the support plate b2; the connecting plate b1 is located between the support plate b2 and the conductive tension piece s2, and both ends of the connecting plate b1 are fixedly connected to the support plate b2 and the conductive tension piece s2, respectively. By connecting the support plate b2 and the conductive connecting piece 121 through the connecting plate b1, a space for accommodating the conductive tension piece s2 and the electrode tab can be provided between the support plate b2 and the conductive connecting piece 121.

[0060] In one alternative embodiment, the support plate b2 and the first bolt are offset in a direction perpendicular to the surface of the insulating base plate 112 to avoid interference between the support plate b2 and the first bolt.

[0061] Please refer to Figure 1 , Figure 2 and Figure 3In one optional embodiment, the other insulating rail 111 (referred to as the second insulating rail 1112) is movably connected to the insulating base plate 112 and can move along the arrangement direction of the two insulating rails 111. The other insulating rail 111 (the second insulating rail 1112) has a second strip-shaped through hole t2. When the connecting assembly 12 is connected to the second strip-shaped through hole t2, a first bolt passes through the second strip-shaped through hole t2 and the connecting through hole, and a first nut is sleeved on one end of the first bolt. For the double-tab soft-pack battery cell, when the size of the soft-pack battery cell changes, the distance between the two insulating rails 111 can be adjusted by moving the other insulating rail 111. In this way, the distance between the two insulating rails 111 can be adaptively adjusted according to the size of the soft-pack battery cell, so that the connecting assembly 12 installed on the two insulating rails 111 can be stably connected to the corresponding tabs, which can improve the applicability of the soft-pack battery cell charging and discharging connection device 10.

[0062] In an optional embodiment, another insulating guide rail 111 (second insulating guide rail 1112) may include a strip guide rail g1 and two second connecting members g2; a second strip-shaped through hole t2 is located on the strip guide rail g1; the two second connecting members g2 are respectively located at both ends of the strip guide rail g1, and the second connecting members g2 are used to connect the strip guide rail g1 and the insulating base plate 112. The insulating base plate 112 has two oppositely arranged third strip-shaped through holes t3, both ends of the strip guide rail g1 have second connecting through holes, and the second connecting member g2 includes a third bolt and a second nut; the third strip-shaped through hole t3 is located at the edge of the insulating base 11, and the extending direction of the second strip-shaped through hole t2 is parallel to the arrangement direction of the two insulating guide rails 111; the third bolt passes through the second connecting through hole and the third strip-shaped through hole t3, and the second nut is sleeved on one end of the third bolt.

[0063] The movement of the first bolt in the second through hole t2 is the same as or similar to the movement of the first bolt in the first through hole t1. This embodiment of the present invention will not elaborate on this.

[0064] When it is necessary to move the strip guide rail g1, the second nut can be rotated to loosen the third bolt, so that the third bolt can move in the third strip through hole t3, thereby driving the strip guide rail g1 to move, and driving the connecting assembly 12 installed on the strip guide rail g1 to move; when the strip guide rail g1 moves to the target position, the second nut can be rotated in the opposite direction to lock the third bolt, and the strip guide rail g1 is fixed on the insulating base plate 112 by the third bolt.

[0065] Please refer to Figure 1In an optional embodiment, the soft-pack battery cell charging and discharging connection device 10 may further include two insulating baffles 13, which are respectively connected to two connecting components 12; when both connecting components 12 are movably mounted on one of the two insulating guide rails 111, the two insulating baffles 13 are located between the two connecting components 12.

[0066] An insulating baffle 13 located between the two connecting components 12 can prevent the two connecting components 12 from coming into contact during testing, thus avoiding a short circuit in the battery. For example, the insulating base plate 112 and the insulating baffle 13 may be made of materials such as plastic, rubber, glass, or wood.

[0067] In one exemplary embodiment, the extending direction of the first strip-shaped through hole t1 and the extending direction of the second strip-shaped through hole t2 can be a first direction, and the extending direction of the third adjusting through hole can be a second direction. The first and second directions can be perpendicular. Thus, the position of the connecting assembly 12 in the first direction can be adjusted through the first and second adjusting through holes, and the distance between the two connecting assemblies 12 in the second direction can be adjusted through the third adjusting through hole, thereby improving the flexibility and applicability of the soft-pack battery cell charging and discharging connection device 10.

[0068] In one exemplary embodiment, mounting the same-side tab pouch cell onto the pouch cell charging and discharging connection device 10 may include the following steps:

[0069] (1) Place the soft-pack battery cell on the insulating base plate 112.

[0070] (2) Loosen the first bolts in the two connecting components 12 respectively, and adjust the distance between the two connecting components 12 according to the distance between the positive and negative tabs on the soft-pack battery cell.

[0071] (3) Place the positive electrode tab and the negative electrode tab between the voltage-conducting fastener s2 and the conductive connecting piece 121 of the two connecting components 12 respectively, and rotate the second bolt s1 in the two connecting components 12 respectively, so that the positive electrode tab or the negative electrode tab is pressed against the conductive connecting piece 121 by the voltage-conducting fastener s2.

[0072] (4) Connect the test terminals to the two first bolts respectively, rotate the first nut to lock the first bolt, and fix the electrical connection piece to the insulating base plate 112 through the first bolt, thereby realizing the locking and fixing of the connection component 12, so that the soft-pack battery cell can be charged and discharged.

[0073] For a pouch cell with two tabs, a connecting component 12 can be moved from the first strip through hole t1 to the second strip through hole t2. After adjusting the position of the strip rail g1 and the connecting component 12 according to the size of the pouch cell, the strip rail and the connecting component 12 are fixed. The connection direction can refer to the above connection method. This utility model embodiment will not elaborate on this.

[0074] It should be noted that the dimensions of the areas may have been exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element is referred to as "on top of" another element, it can be directly on the other element, or there may be intermediate elements. Additionally, it is understood that when an element is referred to as "below" another element, it can be directly below the other element, or there may be more than one intermediate element. Furthermore, it is also understood that when an element is referred to as "between" two elements, it can be the only layer between the two elements, or there may be more than one intermediate element. Similar reference numerals throughout indicate similar elements.

[0075] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0076] The above description is only an optional embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included.

Claims

1. A charging and discharging connection device for a soft-pack battery cell, characterized in that, include: Insulating base and two connecting components; The insulating base has two oppositely arranged insulating rails, and the insulating base is used to support the soft-pack battery cell. Both connecting components are movably mounted on one of the two insulating guide rails, or the two connecting components are movably mounted on both of the insulating guide rails respectively; Both connecting components are movable along the extension direction of the insulating guide rail, and the two connecting components are respectively used to connect the positive and negative tabs of the pouch cell.

2. The soft-pack battery cell charging and discharging connection device according to claim 1, characterized in that, Each of the connecting components includes a conductive connecting piece, a first connecting member, and a clamping structure; The conductive connecting piece is located on the insulating guide rail, and the first connector is used to connect the conductive connecting piece and the insulating guide rail; The clamping structure is connected to the side of the conductive connecting piece away from the insulating base, and is used to press the positive electrode tab or the negative electrode tab against the conductive connecting piece.

3. The soft-pack battery cell charging and discharging connection device according to claim 2, characterized in that, The insulating base also includes an insulating base plate, and one of the two insulating guide rails includes a first strip-shaped through hole, which is located at the end of the insulating base plate; The conductive connecting piece has a first connecting through hole, and the first connecting member includes a first bolt and a first nut; When the connecting assembly is connected to the first strip-shaped through hole, the first bolt passes through the connecting through hole and the first strip-shaped through hole, and the first nut is sleeved on one end of the first bolt.

4. The soft-pack battery cell charging and discharging connection device according to claim 2, characterized in that, The clamping structure includes a support component and a pressure component; The support member is fixedly connected to the side of the conductive connecting piece away from the insulating base, and together with the conductive connecting piece, they form a receiving cavity, which is used to receive the positive electrode tab or the negative electrode tab. The pressure member is movably connected to the support member, and one end of the pressure member can press the positive electrode tab or the negative electrode tab onto the conductive connecting piece.

5. The soft-pack battery cell charging and discharging connection device according to claim 4, characterized in that, The support member has a threaded adjustment through hole, and the pressure member includes a second bolt and a voltage-conducting clamping plate; One end of the second bolt passes through the threaded adjustment hole to extend into the receiving cavity; The conductive clamping piece is located between the second bolt and the conductive connecting piece, and is connected to one end of the second bolt.

6. The soft-pack battery cell charging and discharging connection device according to claim 5, characterized in that, The support component includes a connecting plate and a support plate; The support plate is disposed opposite to the conductive voltage clamping plate, and the threaded adjustment through hole is located on the support plate; The connecting plate is located between the support plate and the voltage-conducting tension plate, and both ends of the connecting plate are fixedly connected to the support plate and the voltage-conducting tension plate, respectively.

7. The soft-pack battery cell charging and discharging connection device according to claim 3, characterized in that, The other of the two insulating guide rails is movably connected to the insulating base plate and can move along the arrangement direction of the two insulating guide rails; The other insulating guide rail has a second strip-shaped through hole. When the connecting assembly is connected to the second strip-shaped through hole, the first bolt passes through the second strip-shaped through hole and the connecting through hole, and the first nut is sleeved on one end of the first bolt.

8. The soft-pack battery cell charging and discharging connection device according to claim 7, characterized in that, The other insulated rail includes a strip rail and two second connectors; The second strip-shaped through hole is located on the strip-shaped guide rail; The two second connectors are located at both ends of the strip rail, and the second connectors are used to connect the strip rail to the insulating base plate.

9. The soft-pack battery cell charging and discharging connection device according to claim 8, characterized in that, The insulating base plate has two oppositely arranged third strip-shaped through holes, and both ends of the strip-shaped guide rail have second connecting through holes. The second connecting member includes a third bolt and a second nut. The third strip-shaped through hole is located at the edge of the insulating base, and the extending direction of the second strip-shaped through hole is parallel to the arrangement direction of the two insulating guide rails; The third bolt passes through the second connecting through hole and the third strip-shaped through hole, and the second nut is sleeved on one end of the third bolt.

10. The soft-pack battery cell charging and discharging connection device according to any one of claims 1 to 9, characterized in that, The soft-pack battery cell charging and discharging connection device also includes two insulating baffles, which are respectively connected to the two connection components; When both connecting components are movably mounted on one of the two insulating guide rails, both insulating baffles are located between the two connecting components.

Images