Valve switch control device and production equipment

Abstract

The utility model provides a valve switch control device and production equipment. The valve switch control device comprises a box body and a pushing assembly. The case is configured to accommodate a battery cell, the case including a wall portion. The pushing assembly is arranged on the box body. And at least one of the wall part and the pushing assembly comprises a magnetic adsorption material body, so that the wall part and the pushing assembly can be switched between a locking state and an unlocking state under the action of magnetic force. And in the locking state, the pushing assembly and the wall part are at least partially jointed and are fixed in relative positions, so that the pushing assembly and the battery monomers are distributed at intervals along the first direction. And in the unlocking state, the pushing assembly moves relative to the wall part in the first direction and is separated from the wall part, so that the pushing assembly is propped against the valve of the battery monomer. According to the embodiment, the structure is simple, operation is convenient, and the opening and closing reliability of the valve can be guaranteed.

Description

Technical Field

[0001] This application relates to the field of battery production, and in particular to a valve switching control device and production equipment. Background Technology

[0002] With the development of new energy technologies, the requirements for battery production efficiency are becoming increasingly stringent. Since battery cells inevitably come into contact with the production environment during production, valves can be installed on the battery cells. These valves open to allow for operations such as liquid injection or venting, and close to isolate the battery cell from the external environment, preventing external moisture and other impurities from entering and affecting its performance.

[0003] Therefore, there is an urgent need for a simple and reliable valve switching control device to meet the opening and closing requirements of valves on individual battery cells. Utility Model Content

[0004] In view of the above problems, this application provides a valve switching control device and production equipment. The valve switching control device has a simple structure, is easy to operate, and helps to ensure the reliability of valve opening and closing.

[0005] In a first aspect, this application provides a valve switching control device, comprising: a housing configured to accommodate a battery cell, the housing including a wall portion; and a push-top assembly disposed in the housing; wherein at least one of the wall portion and the push-top assembly includes a magnetically adsorbent material body, enabling the wall portion and the push-top assembly to switch between a locked state and an unlocked state under magnetic force; in the locked state, the push-top assembly is at least partially engaged with the wall portion and fixed in relative position, such that the push-top assembly and the battery cell are spaced apart along a first direction; in the unlocked state, the push-top assembly moves relative to the wall portion along the first direction and separates from the wall portion, such that the push-top assembly abuts against the valve of the battery cell.

[0006] In some embodiments of the first aspect, the valve switch control device includes a housing and a push assembly. By configuring at least one of the wall and the push assembly as a structure including a magnetic adsorption material body, the magnetic force generated by the magnetic adsorption material body enables the push assembly to move relative to the wall in a first direction, so that the wall and the push assembly can switch between a locked state and an unlocked state. In the locked state, the push assembly and the battery cell are spaced apart, and the valve of the battery cell is in a closed or open state. In the unlocked state, the push assembly abuts against the valve of the battery cell, and the valve is in an open or closed state, so as to ensure the reliability of valve opening and closing. Furthermore, the valve switch control device has a simple structure, and only needs to control the magnetic force between the wall and the push assembly to realize the state transition between the two, so as to realize the opening and closing of the valve, which is convenient for operation.

[0007] In some embodiments, the magnetic adsorption material body comprises an electromagnet. This arrangement facilitates easy acquisition.

[0008] In some embodiments, the push assembly includes a top plate and a pressure rod, the pressure rod being connected to the side of the top plate facing away from the wall in a first direction. At least one of the wall and the top plate includes a magnetically adsorbent material. In a locked state, the top plate and the wall are at least partially engaged and fixed in relative position. In an unlocked state, the pressure rod abuts against the valve of the battery cell. This arrangement facilitates assembly.

[0009] In some embodiments, the number of pressure bars is set to two or more, and the two or more pressure bars are spaced apart. This design can be applied to a larger number of battery cells, thereby improving the production efficiency of battery cells.

[0010] In some embodiments, the valve switching control device further includes a guide member disposed in the housing and extending along a first direction. The guide member is connected to the wall and slidably engaged with the push assembly. By providing the guide member, the movement of the push assembly can be guided, thereby improving the reliability of the valve switching control device.

[0011] In some embodiments, the guide has a first end and a second end opposite each other along a first direction, the first end being connected to the wall and the second end being spaced apart from the housing. This design avoids interference between the guide and the battery cell.

[0012] In some embodiments, the number of guide members is set to two or more, and the two or more guide members are connected to the periphery of the push assembly and spaced apart. This arrangement can further improve the reliability of the valve switching control device.

[0013] In some embodiments, the pusher assembly has a through hole, through which a guide member passes and is clearance-fitted with the pusher assembly. This design ensures the effectiveness of the sliding fit between the guide member and the pusher assembly.

[0014] In some embodiments, one of the pushing assembly and the guide member is provided with a sliding key extending along a first direction, and the other is provided with a sliding groove that matches the shape of the sliding key and slides in engagement with it. This design ensures the effectiveness of the sliding engagement between the guide member and the pushing assembly.

[0015] In some embodiments, the valve switching control device further includes an elastic element connected between one side of the guide member along the first direction and the push assembly, and the length of the elastic element along the first direction is adjustable. By providing the elastic element, the movement of the push assembly can be buffered and limited, thereby ensuring the reliability of the valve switching control device.

[0016] In some embodiments, the valve switching control device further includes a pressure sensor disposed on the elastic element and configured to detect the pressure exerted on the elastic element. The inclusion of a pressure sensor further improves the reliability of the valve switching control device.

[0017] In some embodiments, the valve switching control device further includes a displacement sensor disposed on at least one of the wall portion and the push assembly, and configured to detect the distance between the wall portion and the push assembly along a first direction. By providing a displacement sensor, it is possible to detect whether the push assembly has moved into place, thereby further improving the reliability of the valve switching control device.

[0018] In some embodiments, at least one of the wall and the pusher assembly is covered with a protective layer on its outer periphery. This arrangement avoids the risk of particles being generated during the engagement of the wall and the pusher assembly, thus preventing contamination of the internal environment of the housing and ensuring the safety of the individual battery cells.

[0019] In some embodiments, the wall portion includes an interconnected wall body and a magnetically adsorbed material body, and a pushing assembly is connected to the wall body. In a first direction, the orthographic projection of the magnetically adsorbed material body overlaps with the orthographic projection of the pushing assembly. This arrangement facilitates assembly.

[0020] In some embodiments, the magnetic adsorption material is attached to the side of the wall body facing the pushing assembly along a first direction. This arrangement helps to ensure the effectiveness of the magnetic interaction between the wall and the pushing assembly.

[0021] Secondly, this application provides a production equipment including a valve switching control device according to any embodiment of the first aspect.

[0022] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the valve switch control device in the locked state according to an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the valve switch control device in the unlocked state according to an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the structure of a valve switching control device according to an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the structure of a valve switching control device according to another embodiment of this application;

[0028] Figure 5 This is a schematic diagram of the structure of a valve switch control device according to another embodiment of this application.

[0029] in:

[0030] 100 - Valve switch control device; 200 - Battery cell; 201 - Valve;

[0031] 10-Box body; 11-Wall section; 111-Wall body;

[0032] 20-Push-up assembly; 21-Top plate; 22-Pressure bar;

[0033] 30 - Magnetic adsorption material body;

[0034] 40 - Guide component; 41 - First end; 42 - Second end;

[0035] 50 - Elastic element; 61 - Pressure sensor; 62 - Displacement sensor; 63 - Protective layer;

[0036] S1 - Locked state; S2 - Unlocked state.

[0037] X - First direction.

[0038] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0039] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0040] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by those skilled in the art to which the embodiments of this application pertain.

[0041] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0042] Furthermore, technical terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise explicitly defined.

[0043] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0044] In the description of the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] With the development of new energy technologies, the requirements for battery production efficiency are becoming increasingly stringent. Since battery cells inevitably come into contact with the production environment during production, valves can be installed on the battery cells. These valves open to allow for operations such as liquid injection or venting, and close to isolate the battery cell from the external environment, preventing external moisture and other impurities from entering and affecting its performance.

[0046] In this embodiment of the application, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0047] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0048] In related technologies, the valves on battery cells are opened and closed by controlling cylinders. However, this method is complex, inconvenient to operate, and difficult to use in a closed cavity, making it difficult to guarantee the reliability of opening and closing the valves on battery cells.

[0049] To address the aforementioned technical problems, this application provides a valve switching control device, including a housing and a push-top assembly. The housing is configured to accommodate a battery cell and includes a wall. The push-top assembly is disposed within the housing. At least one of the wall and the push-top assembly includes a magnetically adsorbent material, enabling the wall and the push-top assembly to switch between a locked and unlocked state under magnetic force. In the locked state, the push-top assembly is at least partially engaged with the wall and fixed in relative position, such that the push-top assembly and the battery cell are spaced apart along a first direction. In the unlocked state, the push-top assembly moves relative to the wall along the first direction and separates from the wall, causing the push-top assembly to abut against the valve of the battery cell.

[0050] By configuring at least one of the wall portion and the push assembly as a structure including a magnetically adsorbed material body, the wall portion and the push assembly can switch between a locked state and an unlocked state. In the locked state, the push assembly and the battery cell are spaced apart, and the valve of the battery cell is in a closed or open state. In the unlocked state, the push assembly abuts against the valve of the battery cell, and the valve is in an open or closed state, so as to ensure the reliability of valve opening and closing. Furthermore, the valve switch control device has a simple structure, and only needs to control the magnetic force between the wall portion and the push assembly to realize the state conversion between the two, so as to realize the opening and closing of the valve, which is convenient for operation.

[0051] Please see Figure 1 and Figure 2According to an embodiment of this application, a valve switching control device 100 is provided, including a housing 10 and a push-top assembly 20. The housing 10 is configured to accommodate a battery cell 200 and includes a wall 11. The push-top assembly 20 is disposed in the housing 10. At least one of the wall 11 and the push-top assembly 20 includes a magnetically adsorbent material 30, allowing the wall 11 and the push-top assembly 20 to switch between a locked state S1 and an unlocked state S2 under magnetic force. In the locked state S1, the push-top assembly 20 is at least partially engaged with the wall 11 and fixed in relative position, such that the push-top assembly 20 and the battery cell 200 are spaced apart along a first direction X. In the unlocked state S2, the push-top assembly 20 moves relative to the wall 11 along the first direction X and separates from the wall 11, such that the push-top assembly 20 abuts against the valve 201 of the battery cell 200.

[0052] The valve switch control device 100 provided in this application embodiment can be applied to the battery cell 200. Specifically, the housing 10 can be enclosed to form a sealed cavity to accommodate the battery cell 200, and the battery cell 200 can complete processes such as baking, liquid injection, and formation in the housing 10.

[0053] The housing 10 includes a wall 11, which is disposed along a first direction X toward the valve 201 of the battery cell 200. The first direction X can be represented as the height direction of the housing 10 or the height direction of the battery cell 200.

[0054] The enclosure 10 may also include an enclosure body having an opening along a first direction X, and a wall portion 11 covering the opening and connected to the enclosure body.

[0055] The pusher assembly 20 is installed in the housing 10 and is used to open or close the valve 201 of the battery cell 200 so that the battery cell 200 can complete the baking, liquid injection, formation and other processes in the housing 10.

[0056] Understandably, the valve 201 of the battery cell 200 can be in an open state when under pressure, allowing for operations such as venting or injecting liquid into the battery cell 200. When not under pressure, the valve 201 of the battery cell 200 can be in a closed state, ensuring the isolation of the battery cell 200 from the external environment and preventing contamination of the battery cell 200 during other processes.

[0057] Of course, the valve 201 of the battery cell 200 can also be in a closed state when under pressure and in an open state when not under pressure. This application does not limit this, but for ease of description, the following will describe the valve 201 as open when under pressure and closed when not under pressure.

[0058] The push-top assembly 20 can be disposed along the first direction X between the wall portion 11 and the valve 201 of the battery cell 200. The wall portion 11 and the push-top assembly 20 can switch between a locked state S1 and an unlocked state S2 under the action of magnetic force. The magnetic force means that the wall portion 11 and the push-top assembly 20 can have a mutual magnetic attraction force. Of course, the wall portion 11 and the push-top assembly 20 can also have a mutual magnetic repulsion force. The wall portion 11 and the push-top assembly 20 can switch states simply by relying on the magnetic force.

[0059] like Figure 1 As shown, in the locked state S1, the push assembly 20 is at least partially engaged with the wall portion 11 and their relative positions are fixed. The push assembly 20 and the battery cell 200 are distributed at intervals along the first direction X, that is, the push assembly 20 and the battery cell 200 are separately disposed. At this time, the valve 201 of the battery cell 200 will not be subjected to the abutting force provided by the push assembly 20, that is, the valve 201 is in the closed state.

[0060] The fact that the pusher assembly 20 is at least partially engaged with the wall portion 11 can be understood as the pusher assembly 20 and at least a portion of the wall portion 11 being able to contact and connect as one unit.

[0061] Optionally, in the locked state S1, the push assembly 20 and the wall portion 11 can be fully engaged, or they can be partially engaged.

[0062] like Figure 2 As shown, in the unlocked state S2, the push assembly 20 moves along the first direction X toward the battery cell 200 so as to separate from the wall 11 and abut against the valve 201 of the battery cell 200. At this time, the valve 201 of the battery cell 200 is in the open state.

[0063] The valve switch control device 100 provided in some embodiments of this application includes a housing 10 and a push assembly 20. By configuring at least one of the wall portion 11 and the push assembly 20 to include a magnetic adsorption material body 30, the magnetic force generated by the magnetic adsorption material body 30 can cause the push assembly 20 to move relative to the wall portion 11 along a first direction X, so that the wall portion 11 and the push assembly 20 can switch between a locked state S1 and an unlocked state S2. In the locked state S1, the push assembly 20 and the battery cell 200 are spaced apart, and the valve 201 of the battery cell 200 is in a closed or open state. In the unlocked state S2, the push assembly 20 abuts against the valve 201 of the battery cell 200, and the valve 201 is in an open or closed state, so as to ensure the reliability of the opening and closing of the valve 201.

[0064] Furthermore, the valve switch control device 100 has a simple structure. It only needs to control the magnetic force between the wall 11 and the push assembly 20 to realize the state conversion between the two, so as to realize the opening and closing of the valve 201, which is easy to operate.

[0065] Optionally, the pusher assembly 20 can be entirely housed inside the housing 10, or a portion of the pusher assembly 20 can be housed inside the housing 10 and a portion can be housed outside the housing 10.

[0066] Optionally, either the wall portion 11 or the pushing assembly 20 may include a magnetic adsorption material body. Specifically, either of them may be made entirely of a magnetic adsorption material body, or it may be made partially of a magnetic adsorption material body. Optionally, both the wall portion 11 and the pushing assembly 20 may also include a magnetic adsorption material body.

[0067] Optionally, the wall portion 11 includes a magnetically adsorbent material body 30.

[0068] like Figure 1 As shown, in some embodiments, the wall portion 11 includes a wall body 111, and a magnetic adsorption material body 30 is connected to the wall body 111 on the side facing the push assembly 20 along the first direction X. The push assembly 20 is connected to the wall body 111. The area of ​​the magnetic adsorption material body 30 can be smaller than the area of ​​the wall portion 11, or it can be equal to the area of ​​the wall portion 11.

[0069] like Figure 3 As shown, in some embodiments, the wall portion 11 includes a wall body 111, a magnetic adsorption material body 30 is embedded in the wall body 111, and a push assembly 20 is connected to the wall body 111.

[0070] like Figure 4 As shown, in some embodiments, the wall portion 11 can be entirely made of magnetic adsorption material 30, that is, the wall portion 11 can be entirely made of magnetic adsorption material 30.

[0071] Optionally, the push assembly 20 includes a magnetically adsorbent material body 30, wherein the push assembly 20 includes a pressure rod 22, one end of the pressure rod 22 along the first direction X can engage with the wall portion 11 and be fixed in a relative position in the locked state S1, and the other end can abut against the valve 201 of the battery cell 200 in the unlocked state S2.

[0072] Specifically, the pressure bar 22 includes a magnetically adsorbent material body 30 along the first direction X toward a portion of the wall 11.

[0073] Optionally, the push assembly 20 includes a magnetically adsorbent material body 30. The push assembly 20 includes a top plate 21 and a pressure rod 22. The pressure rod 22 is connected to the side of the top plate 21 facing away from the wall 11 along a first direction X. In the locked state S1, the top plate 21 is at least partially engaged with the wall 11 and their relative positions are fixed. In the unlocked state S2, the pressure rod 22 abuts against the valve 201 of the battery cell 200. Specifically, the top plate 21 is provided with the magnetically adsorbent material body 30.

[0074] In some embodiments, the top plate 21 includes a plate body, a magnetic adsorption material body 30 is connected to the side of the plate body facing the wall portion 11 along the first direction X, the top plate 21 is connected to the wall portion 11, and the area of ​​the magnetic adsorption material body 30 may be smaller than the area of ​​the top plate 21, or it may be equal to the area of ​​the top plate 21.

[0075] In some embodiments, the top plate 21 includes a plate body, a magnetic adsorption material body 30 is embedded in the plate body, and the plate body is connected to the wall portion 11.

[0076] In some embodiments, the top plate 21 can be entirely made of magnetic adsorption material 30, that is, the top plate 21 can be entirely made of magnetic adsorption material 30.

[0077] Optionally, both the wall portion 11 and the push assembly 20 may include a magnetically adsorbent material body 30.

[0078] Optionally, the magnetic adsorption material body 30 can be connected to the wall portion 11 and / or the push assembly 20 by means of bonding or welding. It can also be detachably connected to the wall portion 11 and / or the push assembly 20 by fasteners. Of course, the magnetic adsorption material body 30 can also be embedded in the wall portion 11 and / or the push assembly 20.

[0079] In some alternative embodiments, the magnetic adsorption material body 30 includes an electromagnet.

[0080] An electromagnet is a device that generates electromagnetic fields when an electric current is passed through it. An electromagnet may include an iron core and a conductive coil wound around the iron core. Passing a current through the coil magnetizes the iron core, and the magnetic force can be adjusted by regulating the current. Furthermore, changing the direction of the current can alter the direction of the electromagnet's poles.

[0081] like Figure 1 As shown, in some embodiments, the wall portion 11 may include an electromagnet, and the pushing assembly 20 may include a material that can generate magnetic force with the electromagnet. Optionally, the pushing assembly 20 may be made of metal materials such as iron, cobalt, and nickel.

[0082] Specifically, a first current is supplied to the electromagnet disposed on the wall portion 11 to make it magnetic. The magnetic attraction between the electromagnet on the wall portion 11 and the push assembly 20 will make them fit tightly together, so that they are in a locked state S1. The magnetic attraction between them will make the push assembly 20 always tend to move towards the wall portion 11 along the first direction X, so as to ensure the reliability of their engagement, and keep the valve 201 of the battery cell 200 in a closed state. When the valve 201 of the battery cell 200 needs to be opened, the first current is closed or reduced to make the magnetism of the electromagnet on the wall portion 11 disappear or decrease, or a second current opposite to the first current is supplied to the electromagnet. Without the need to use external tools to push the push assembly 20, the push assembly 20 can move away from the wall portion 11 in the first direction X and separate from it, so that they are in an unlocked state. The push assembly 20 can push the valve 201 of the battery cell 200 to open the valve 201.

[0083] In some embodiments, the wall portion 11 may include an electromagnet, and the pushing assembly 20 may include a permanent magnet. A permanent magnet can be understood as a magnet capable of generating a stable magnetic field that can attract components made of metal materials such as iron, cobalt, and nickel. Optionally, the permanent magnet may include any one of neodymium magnets, samarium cobalt magnets, alnico magnets, and ferrite magnets.

[0084] One embodiment of this application provides a valve switching control device 100, in which electromagnets are readily available and facilitate the effective guarantee of the magnetic force between the push assembly 20 and the wall 10.

[0085] Furthermore, by setting it up in the above manner, the opening and closing of the valve 201 of the battery cell 200 can be satisfied simply by passing an electric current through the magnetic adsorption material 30 on the wall 10 outside the housing 10, which facilitates the sealing requirements inside the housing 10 to ensure the safety of the battery cell 200. In addition, it is also easy to disassemble and install, and convenient for maintenance.

[0086] Please continue reading. Figure 1 and Figure 2 In some alternative embodiments, the push assembly 20 includes a top plate 21 and a pressure rod 22. The pressure rod 22 is connected to the side of the top plate 21 facing away from the wall portion 11 along a first direction X. At least one of the wall portion 11 and the top plate 21 includes a magnetic adsorption material body 30. In the locked state S1, the top plate 21 and the wall portion 11 are at least partially engaged and fixed in relative position. In the unlocked state S2, the pressure rod 22 abuts against the valve 201 of the battery cell 200.

[0087] The top plate 21 is movably connected to the wall along the first direction X. The top plate 21 has a magnetic force with the wall 11. The pressure rod 22 is used to abut against the valve 201 of the battery cell 200 to open or close it under pressure.

[0088] The valve switch control device 100 provided in one embodiment of this application is simple in structure and easy to assemble, as described above.

[0089] In some alternative embodiments, the number of pressure bars 22 is set to two or more, and the two or more pressure bars 22 are spaced apart.

[0090] The number of pressure bars 22 can be set to two, three, or even more. Specifically, the number of pressure bars 22 can be set according to the structural dimensions of the housing 10 or the number of battery cells 200 that the housing 10 can accommodate.

[0091] With the above settings, the valve switch control device 100 provided in one embodiment of this application can be applied to a larger number of battery cells 200, thereby improving the production efficiency of the battery cells 200 and thus improving the operating efficiency of the valve switch control device 100.

[0092] In some alternative embodiments, the valve switch control device 100 further includes a guide 40, which is disposed in the housing 10 and extends along a first direction X. The guide 40 is connected to the wall 11 and is slidably engaged with the push assembly 20.

[0093] The guide member 40 is used to guide the movement of the pusher assembly 20 to ensure the accuracy of the pusher assembly 20 moving along the first direction X.

[0094] Specifically, the guide member 40 is slidably fitted with the top plate 21.

[0095] One embodiment of this application provides a valve switch control device 100, which, by providing a guide member 40, enables the push assembly 20 to move more accurately and reliably along the first direction X, thereby improving the reliability of the valve switch control device 100.

[0096] Optionally, the guide member 40 can be configured as a rod-shaped structure or a column-shaped structure.

[0097] Optionally, in the first direction X, the orthographic projection of the guide 40 can be any one of a circle, a rectangle, a trapezoid, or a triangle.

[0098] like Figure 1 As shown, in some alternative embodiments, the guide member 40 has a first end 41 and a second end 42 opposite to each other along the first direction X, the first end 41 being connected to the wall portion 11 and the second end 42 being spaced apart from the housing 10.

[0099] The second end 42 being spaced apart from the housing 10 can be understood as the second end 42 extending into the housing 10 and being suspended in the air. In other words, in the first direction X, the length of the guide 40 located inside the housing 10 is less than the length of the housing 10.

[0100] It is understood that the valve switch control device 100 provided in one embodiment of this application can be used to simultaneously switch valves 201 on multiple battery cells 200. In actual operation, multiple battery cells 200 can be set as a group and placed sequentially in the housing 10 in groups. By setting it in the above manner, it is possible to avoid the guide member 40 being too long and interfering with the entry and exit of the battery cells 200 from the housing 10, which is conducive to improving operating efficiency and ensuring the safety of the battery cells 200 and the guide member 40, thereby improving the reliability of the valve switch control device 100.

[0101] In some alternative embodiments, the number of guide members 40 is set to two or more, and the two or more guide members 40 are connected to the periphery of the push assembly 20 and are spaced apart.

[0102] The number of guide components 40 can be set to two, three, or even more.

[0103] By setting it in the above manner, the guiding effect provided by the guide member 40 on the movement of the push assembly 20 can be further improved, so that the push assembly 20 pushes against the valve 201 of the battery cell 200 to make its opening or closing more accurate, thereby improving the reliability of the valve switch control device 100.

[0104] For example, the number of guide members 40 is set to two, and the two guide members 40 are connected to the periphery of the pusher assembly 20 and spaced apart.

[0105] In some alternative embodiments, the pusher assembly 20 has a through hole through which the guide 40 passes and is clearance-fitted with the pusher assembly 20.

[0106] The top plate 21 may be provided with a through hole extending along the first direction X. The guide member 40 passes through this through hole and is clearance-fitted with the top plate 21, which can ensure the effectiveness of the sliding fit between the push assembly 20 and the guide member 40 along the first direction X.

[0107] The valve switch control device 100 provided in one embodiment of this application is easy to manufacture and assemble due to the above-described configuration.

[0108] In some alternative embodiments, one of the pusher assembly 20 and the guide member 40 is provided with a slide key extending along the first direction X, and the other is provided with a slide groove that matches the shape of the slide key and slides in engagement.

[0109] In some embodiments, the top plate 21 is provided with a sliding key extending along the first direction X on the side facing the guide member 40, and the outer peripheral surface of the guide member 40 is provided with a sliding groove that matches the shape of the sliding key and slides in cooperation with it.

[0110] In some embodiments, the top plate 21 is provided with a slide key extending along the first direction X on the side facing the guide member 40, and the inner peripheral surface of the guide member 40 is provided with a slide groove that matches the shape of the slide key and slides in cooperation with it.

[0111] In some embodiments, the outer peripheral surface of the guide member 40 is provided with a slide key extending along the first direction X, and the top plate 21 is provided with a slide groove on the side facing the guide member 40 that matches the shape of the slide key and slides in cooperation with it.

[0112] The valve switch control device 100 provided in one embodiment of this application, through the above-mentioned settings, can ensure the effectiveness of the sliding engagement between the push assembly 20 and the guide member 40 along the first direction X, and can also prevent the push assembly 20 from rotating during the movement or during the engagement with the wall portion 11, so as to ensure the accuracy of the relative position of the pressure plate and the valve 201 of the battery cell 200 along the first direction X, thereby ensuring the accuracy of the valve 201, and thus helping to improve the reliability of the valve switch control device 100.

[0113] Please continue reading Figure 1 and Figure 2 In some optional embodiments, the valve switch control device 100 further includes an elastic element 50, which is connected between the guide 40 on one side along the first direction X and the push assembly 20, and the length of the elastic element 50 along the first direction X is adjustable.

[0114] The length of the elastic element 50 along the first direction X is adjustable, which can be understood as the elastic element 50 being able to extend or shorten as the pushing assembly 20 moves along the first direction X.

[0115] like Figure 1 As shown, in some embodiments, the elastic element 50 is connected between the end of the guide 40 facing away from the wall portion 11 and the end of the top plate 21 facing away from the wall portion 11. When the pushing assembly 20 moves away from the wall portion 11 along the first direction X, the elastic element 50 is compressed and shortened by the top plate 21; when the pushing assembly 20 moves towards the wall portion 11 along the first direction X, the elastic element 50 is stretched and elongated by the top plate 21.

[0116] In this case, the distance that the push assembly 20 needs to move to open the valve 201 can be calculated in advance, and an elastic element 50 with a limit compression amount adapted to this moving distance is used. That is, the push assembly 20 abuts against the valve 201 of the battery cell 200 under the action of magnetic force and opens it. At this time, the elastic element 50 reaches the limit compression amount under the compression of the push assembly 20, so that the push assembly 20 will not continue to over-pressure the valve 201 of the battery cell 200, thus ensuring safety.

[0117] In other embodiments, a spring is connected between the end of the guide 40 facing the wall 11 and the end of the top plate 21 facing the wall 11. When the push assembly 20 moves away from the wall 11 in the first direction X, the elastic member 50 is stretched by the top plate 21 and elongated; when the push assembly 20 moves towards the wall 11 in the first direction X, the elastic member 50 is compressed by the top plate 21 and shortened.

[0118] In this case, the distance that the push assembly 20 needs to move to open the valve 201 can be calculated in advance, and an elastic element 50 with a limit elongation adapted to this moving distance can be used. That is, the push assembly 20 abuts against the valve 201 of the battery cell 200 under the action of magnetic force and opens it. At this time, the elastic element 50 reaches its limit elongation under the stretch of the push assembly 20, so that the push assembly 20 will not continue to over-pressure the valve 201 of the battery cell 200, thus ensuring safety.

[0119] Optionally, the elastic element 50 may include, but is not limited to, any one of spring, sponge, or rubber.

[0120] Please see Figures 3 to 5 In some alternative embodiments, the valve switching control device 100 further includes a pressure sensor 61 disposed on the elastic element 50 and configured to detect the pressure on the elastic element 50.

[0121] The pressure sensor 61 may include a piezoelectric pressure sensor 61, a strain gauge pressure sensor 61, a resistance strain gauge, etc., and is small in size and highly sensitive.

[0122] The pressure sensor 61 is used to detect the pressure on the elastic member 50. Specifically, this pressure is the force that the top plate 21 exerts to compress the elastic member 50 as it moves along the first direction X. When the pressure on the elastic member 50 is a preset pressure value, the top plate 21 moves just a preset distance, and the pressure rod 22 just comes into contact with the valve 201 to open the valve 201. At this time, the current supplied to the magnetic adsorption material body 30 can be maintained so that the valve 201 is in the open state, and operations such as liquid injection and venting are performed on the battery cell 200.

[0123] When the pressure on the elastic element 50 is less than the preset pressure value, it means that the top plate 21 has not moved to the preset distance, so that the pressure plate fails to abut against the valve 201 to open it. At this time, the current supplied to the magnetic adsorption material body 30 can be increased so that the push assembly 20 can continue to move. When the pressure on the elastic element 50 is greater than the preset pressure value, it means that there is an overpressure phenomenon between the pressure plate and the valve 201. At this time, the current supplied to the magnetic adsorption material body 30 can be reduced so that the pressure plate is in a state that just opens the valve 201 without overpressure.

[0124] One embodiment of this application provides a valve switch control device 100, which, by setting a pressure sensor 61, can detect the pressure on the elastic member 50, avoid the problem of the push assembly 20 not moving into place or overpressure, so as to ensure that the valve 201 of the battery cell 200 can be opened smoothly and ensure the safety of the battery cell 200, thereby improving the reliability of the valve switch control device 100.

[0125] In some alternative embodiments, the valve switching control device 100 further includes a controller configured to adjust the magnitude of the current flowing through the magnetic adsorption material body 30.

[0126] Optionally, the pressure sensor 61 is configured to detect the pressure on the elastic element 50 and send a control signal to the controller, which is configured to receive the control signal and adjust the magnitude of the current flowing through the magnetic adsorption material body 30 according to the control signal.

[0127] By setting it up in the above manner, it is beneficial to realize the automated design of the valve switching control device 100, further improve the accuracy of switching the valve 201, and thus improve the reliability of the valve switching control device 100.

[0128] Please continue reading. Figures 3 to 5 In some alternative embodiments, the valve switching control device 100 further includes a displacement sensor 62 disposed on at least one of the wall portion 11 and the push assembly 20, and configured to detect the distance between the wall portion 11 and the push assembly 20 along a first direction X.

[0129] The displacement sensor 62 may include, but is not limited to, one of the following: potentiometer-type displacement sensor 62, capacitive sensor, resistive sensor, and magnetoelectric sensor.

[0130] The displacement sensor 62 is used to detect the distance between the wall 11 and the push assembly 20 along the first direction X, so as to avoid the push assembly 20 not moving into place or overpressure, so as to ensure that the valve 201 of the battery cell 200 can be opened smoothly and to ensure the safety of the battery cell 200, thereby improving the reliability of the valve switch control device 100.

[0131] Optionally, the displacement sensor 62 is disposed on at least one of the wall portion 11 and the top plate 21.

[0132] In some embodiments, the number of displacement sensors 62 can be set to two or more, and the two or more displacement sensors 62 are distributed at intervals, which helps to improve accuracy.

[0133] Please see Figures 3 to 5 In some alternative embodiments, the outer periphery of at least one of the wall portion 11 and the pusher assembly 20 is covered with a protective layer 63.

[0134] The protective layer 63 may include structures such as plastic layers and adhesive layers, and is used to protect the wall 11 and the push assembly 20.

[0135] Understandably, in the locked state S1, the wall 11 and the top plate 21 of the push assembly 20 will at least partially engage. During the contact process, the wall 11 and the top plate 21 may rub against each other and generate particles. Therefore, at least one of the wall 11 and the push assembly 20 is covered with a protective layer 63 to avoid the risk of particles being generated during the engagement process of the wall 11 and the top plate 21, which would contaminate the internal environment of the housing 10. This helps to ensure the safety of the battery cell 200 and thus improves the reliability of the valve switch control device 100.

[0136] In some embodiments, at least one of the wall portion 11 and the pusher assembly 20 is provided with a protective layer 63 on the surface facing each other.

[0137] To reduce costs and improve production efficiency, a protective layer 63 may be provided on the side of the wall 11 or the push assembly 20 facing each other along the first direction X.

[0138] like Figure 3 As shown, for example, the wall portion 11 includes a magnetic adsorption material body 30, and the pushing assembly 20 is provided with a protective layer 63 on the side of the wall portion 11 along the first direction X. Of course, the wall portion 11 can also be provided with a protective layer 63 on the side of the pushing assembly 20 along the first direction X.

[0139] like Figure 4 As shown, for example, the entire wall portion 11 is provided with a magnetic adsorption material body 30, and the push assembly 20 and the wall portion 11 are provided with a protective layer 63 on the side facing each other along the first direction X.

[0140] like Figure 4 As shown, for example, the wall portion 11 includes a magnetic adsorption material body 30, and the pushing component 20 is provided with a protective layer 63 on the side of the wall portion 11 along the first direction X. The outer peripheral surface of the magnetic adsorption material body 30 is provided with the protective layer 63. Of course, the protective layer 63 may also be provided only on the side of the magnetic adsorption material body 30 along the first direction X towards the pushing component 20.

[0141] Please see Figure 3 and Figure 5 In some optional embodiments, the wall portion 11 includes a wall body 111 and a magnetically adsorbed material body 30 connected to each other, and the pushing assembly 20 is connected to the wall body 111. In the first direction X, the orthographic projection of the magnetically adsorbed material body 30 overlaps with the orthographic projection of the pushing assembly 20.

[0142] Optionally, in the first direction X, the orthographic projection of the magnetically adsorbed material body 30 falls into the push assembly 20.

[0143] One embodiment of this application provides a valve switching control device 100 that is easy to assemble.

[0144] Optionally, the number of magnetic adsorption material bodies 30 can be set to one, or two, or even more.

[0145] like Figure 1 As shown, in some alternative embodiments, the magnetic adsorption material body 30 is connected to the side of the wall body 111 facing the push assembly 20 along the first direction X.

[0146] In the locked state S1, the push assembly 20 engages with the magnetic adsorption material body 30 in the wall portion 11 and their relative positions are fixed.

[0147] One embodiment of this application provides a valve switching control device 100, which has a simple structure and is easy to disassemble and maintain.

[0148] This application also provides a production equipment, including a valve switching control device 100 provided according to any of the above embodiments.

[0149] The production equipment is used to achieve mass production of battery cells 100. Since the production equipment includes a valve switch control device 100 with a simple structure and easy operation, it is beneficial to improve the production efficiency of the production equipment.

[0150] Please refer to the following: Figures 1 to 5 This application provides a valve switch control device 100, including a housing 10, a push assembly 20, a guide 40, an elastic element 50, a pressure sensor 61, and a displacement sensor 62.

[0151] The housing 10 is configured to accommodate a battery cell 200. The housing 10 includes a wall 11, which includes an interconnected wall body 111 and a magnetic adsorption material body 30. The magnetic adsorption material body 30 is connected to the wall body 111 on the side facing the push assembly 20 along a first direction X. The magnetic adsorption material body 30 includes an electromagnet.

[0152] The push-top assembly 20 is disposed on the housing 10 and includes a top plate 21 and a pressure rod 22. The top plate 21 is connected to the wall body 111. In the first direction X, the orthographic projection of the magnetic adsorption material body 30 overlaps with the orthographic projection of the push-top assembly 20. The pressure rod 22 is connected to the side of the top plate 21 facing away from the wall 11 along the first direction X. The number of pressure rods 22 is set to two or more, and the two or more pressure rods 22 are spaced apart.

[0153] The wall portion 11 and the push assembly 20 can switch between a locked state S1 and an unlocked state S2 under magnetic force. In the locked state S1, the push assembly 20 and the wall portion 11 are at least partially engaged and fixed in relative position, so that the push assembly 20 and the battery cell 200 are spaced apart along the first direction X. In the unlocked state S2, the push assembly 20 moves relative to the wall portion 11 along the first direction X and separates from the wall portion 11, so that the pressure rod 22 abuts against the valve 201 of the battery cell 200.

[0154] A guide member 40 is disposed on the housing 10 and extends along the first direction X. The guide member 40 is connected to the wall portion 11 and is slidably engaged with the push assembly 20. The guide member 40 has a first end 41 and a second end 42 opposite to each other along the first direction X. The first end 41 is connected to the wall portion 11, and the second end 42 is spaced apart from the housing 10. The number of guide members 40 is set to two or more, and the two or more guide members 40 are connected to the periphery of the push assembly 20 and are spaced apart.

[0155] The pusher assembly 20 is provided with a slide key extending along the first direction X, and the guide member 40 is provided with a slide groove that matches the shape of the slide key and slides in cooperation with it.

[0156] An elastic member 50 is connected between the guide member 40 and the push assembly 20 along one side of the guide member 40 in the first direction X, and the length of the elastic member 50 along the first direction X is adjustable. A pressure sensor 61 is disposed on the elastic member 50 and configured to detect the pressure on the elastic member 50. A displacement sensor 62 is disposed on at least one of the wall portion 11 and the push assembly 20 and configured to detect the distance between the wall portion 11 and the push assembly 20 along the first direction X. The outer periphery of at least one of the wall portion 11 and the push assembly 20 is covered with a protective layer 63.

[0157] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A valve switching control device, characterized in that, include: A housing configured to house individual battery cells, the housing including walls; A push-top assembly is disposed within the housing; Wherein, at least one of the wall portion and the pushing assembly includes a magnetically adsorbed material body, so that the wall portion and the pushing assembly can switch between a locked state and an unlocked state under the action of magnetic force; In the locked state, the pusher assembly is at least partially engaged with the wall and its relative position is fixed, so that the pusher assembly and the battery cell are spaced apart along a first direction; In the unlocked state, the push assembly moves relative to the wall portion along the first direction and separates from the wall portion, so that the push assembly abuts against the valve of the battery cell.

2. The valve switching control device according to claim 1, characterized in that, The magnetic adsorption material includes an electromagnet.

3. The valve switching control device according to claim 1 or 2, characterized in that, The push assembly includes a top plate and a pressure rod. The pressure rod is connected to the side of the top plate facing away from the wall in the first direction. At least one of the wall and the top plate includes a magnetically adsorbent material. In the locked state, the top plate and the wall are at least partially engaged and fixed in relative position. In the unlocked state, the pressure rod abuts against the valve of the battery cell.

4. The valve switching control device according to claim 3, characterized in that, The number of pressure bars is set to two or more, and the two or more pressure bars are spaced apart.

5. The valve switching control device according to any one of claims 1 to 4, characterized in that, The valve switch control device further includes a guide member, which is disposed in the housing and extends along the first direction. The guide member is connected to the wall and is slidably engaged with the push assembly.

6. The valve switching control device according to claim 5, characterized in that, The guide member has a first end and a second end opposite to each other along the first direction. The first end is connected to the wall portion, and the second end is spaced apart from the housing.

7. The valve switching control device according to claim 5 or 6, characterized in that, The number of guide members is set to two or more, and the two or more guide members are connected to the periphery of the push assembly and are spaced apart.

8. The valve switching control device according to any one of claims 5 to 7, characterized in that, The pusher assembly has a through hole, and the guide passes through the through hole and is clearance-fitted with the pusher assembly.

9. The valve switching control device according to any one of claims 5 to 7, characterized in that, One of the pushing component and the guide component is provided with a sliding key extending along the first direction, and the other is provided with a sliding groove that matches the shape of the sliding key and slides in cooperation with it.

10. The valve switching control device according to any one of claims 5 to 9, characterized in that, The valve switching control device further includes an elastic element, which is connected between the guide member on one side along the first direction and the push assembly, and the length of the elastic element along the first direction is adjustable.

11. The valve switching control device according to claim 10, characterized in that, The valve switching control device further includes a pressure sensor disposed on the elastic element and configured to detect the pressure on the elastic element.

12. The valve switching control device according to any one of claims 1 to 11, characterized in that, The valve switching control device further includes a displacement sensor disposed on at least one of the wall portion and the push assembly, and configured to detect the distance between the wall portion and the push assembly along the first direction.

13. The valve switching control device according to any one of claims 1 to 12, characterized in that, The outer periphery of at least one of the wall portion and the pusher assembly is covered with a protective layer.

14. The valve switching control device according to any one of claims 1 to 13, characterized in that, The wall portion includes an interconnected wall body and a magnetically adsorbed material body. The pushing assembly is connected to the wall body. In the first direction, the orthographic projection of the magnetically adsorbed material body overlaps with the orthographic projection of the pushing assembly.

15. The valve switching control device according to claim 14, characterized in that, The magnetic adsorption material is connected to the wall body on one side along the first direction toward the push assembly.

16. A production equipment, characterized in that, Includes the valve switching control device as described in any one of claims 1 to 15.

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