Pressing device for battery formation and capacity grading and battery formation and capacity grading equipment

Abstract

The utility model relates to a pressing device for battery formation and capacity grading and battery formation and capacity grading equipment. The utility model discloses a pressing device for battery formation and capacity grading. The pressing device comprises a rack assembly, a first pressing mechanism and a second pressing mechanism, the rack assembly is used for bearing a tray loaded with a battery; the first pressing mechanism and the second pressing mechanism are arranged on the rack assembly, and the first pressing mechanism and the second pressing mechanism are arranged to be capable of moving towards the tray so as to press the battery. The first pressing mechanism and the second pressing mechanism respectively move towards the tray, so that the tray can be stressed in a more balanced manner, and compared with the prior art, structural interference or uneven alignment caused by deviation of the tray in the pressing process can be avoided, so that the safety and the pressing quality of formation operation are improved.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and in particular, to a pressing device for battery formation and formation and capacity testing equipment for batteries. Background Art

[0002] In the process of battery manufacturing, formation and capacity testing is a key process step, which involves the charging and discharging processes of the battery to test the performance and capacity of the battery. Currently, most battery connections are made by moving a movable frame along a guiding column to drive a tray to move up and down in the height direction, so as to drive the battery and press the positive and negative electrode tabs respectively for electrical connection. Usually, the tray moves downward relatively to first press the lower probe and then press the upper probe.

[0003] However, in the existing method, since the lower probe contacts the position of the lower electrode tab of the battery first during the pressing process, and the probe is not a completely rigid part, the spring force support acting on the bottom of the tray may cause uneven force on the tray, and the tray is prone to deviation. And when the tray deviates, the cylinder output force point does not coincide with the center of gravity of the tray, resulting in an eccentric load on the guiding column during the lifting process. This eccentric load will accelerate the wear of the guiding column and reduce the stability and service life of the equipment. Moreover, during the lifting process, the driving device for driving the movable frame also needs to overcome the gravity of the tray and the movable frame. According to the above, the gravity of the tray is usually large, and at this time, the driving device needs to consume more energy to complete the lifting action, resulting in a high energy consumption required for the process.

[0004] Based on this, the present utility model is proposed. Summary of the Utility Model

[0005] The present application provides a pressing device for battery formation and formation and capacity testing equipment for batteries to solve the above technical problems.

[0006] According to one aspect of the present application, a pressing device for battery formation and capacity testing is provided, including a frame assembly, a first pressing mechanism and a second pressing mechanism; the frame assembly is used to carry a tray loaded with batteries; the first pressing mechanism and the second pressing mechanism are arranged on the frame assembly, and the first pressing mechanism and the second pressing mechanism are arranged to be able to move towards the tray to press the battery.

[0007] In an optional solution of the present application, the first pressing mechanism includes a first movable frame capable of lifting movement and a first probe assembly connected to the first movable frame; the second pressing mechanism includes a second movable frame capable of lifting movement and a second probe assembly connected to the second movable frame; the first movable frame and the second movable frame are arranged to be able to move towards the tray so that the first probe assembly and the second probe assembly press the battery.

[0008] In an alternative embodiment of the present application, the rack assembly includes a fixed frame and a positioning assembly. The positioning assembly is disposed on the fixed frame and is used to carry a tray loaded with batteries.

[0009] In an alternative embodiment of the present application, the fixed frame includes a platform bracket and a frame structure disposed on the platform bracket; the frame structure is provided with a guiding inlet for the tray to be placed on the positioning assembly along a horizontal first direction.

[0010] In an alternative embodiment of the present application, the frame structure is movably connected to the platform bracket.

[0011] In an alternative embodiment of the present application, the positioning assembly includes a support seat disposed on the platform bracket and a positioning member disposed on the support seat; the support seat is used to support the tray, and the positioning member is used to position the tray.

[0012] In an alternative embodiment of the present application, the number of the positioning assemblies is at least two, and the positioning assemblies are spaced apart in a second direction to support the tray together; the second direction is perpendicular to the first direction on a horizontal plane.

[0013] In an alternative embodiment of the present application, the support seat includes a receiving portion and an extending portion. The receiving portion is used to support the tray, and the extending portion extends along the second direction and towards the pressing area; the positioning member is a positioning pin, and the positioning pin is connected to the extending portion and is higher than the receiving surface of the receiving portion in the height direction.

[0014] In an alternative embodiment of the present application, the rack assembly further includes a guiding body disposed on the frame structure. The guiding body is configured to constrain the tray in the second direction when the tray is placed on the positioning assembly.

[0015] In an alternative embodiment of the present application, the rack assembly further includes a rear limiting plate. The rear limiting plate is disposed on the platform bracket and on the side of the frame structure away from the guiding inlet to limit the tray in the first direction.

[0016] In an alternative embodiment of the present application, the rack assembly further includes a limiting post. The limiting post is disposed on the side of the frame structure close to the first pressing mechanism to limit the descending stroke of the first pressing mechanism.

[0017] In an alternative embodiment of the present application, the first pressing mechanism further includes a first guiding post and a first telescopic cylinder. The first guiding post is disposed on the side of the frame structure away from the second pressing mechanism, and the first telescopic cylinder is connected to the first movable frame to drive the first movable frame to lift along the first guiding post; and / or the second pressing mechanism includes a second guiding post and a second telescopic cylinder. The second guiding post is connected to the side of the platform bracket away from the first pressing mechanism, and the second telescopic cylinder is connected to the second movable frame to drive the second movable frame to lift along the second guiding post.

[0018] In an alternative embodiment of the present application, the first movable frame is connected with multiple groups of first connection structures arranged at intervals in the second direction, and the second movable frame is connected with multiple groups of second connection structures arranged at intervals in the second direction; the first probe assembly and the second probe assembly are detachably connected to the first movable frame and the second movable frame through the first connection structure and the second connection structure respectively.

[0019] In an alternative embodiment of the present application, each group of first connection structures includes a first connection unit, and the first probe assembly is detachably connected to the frame structure through the first connection unit.

[0020] In an alternative embodiment of the present application, the pressing device further includes a negative pressure assembly, and each group of first connection structures further includes a second connection unit, and the negative pressure assembly is detachably connected to the frame structure through the second connection unit.

[0021] In an alternative embodiment of the present application, the first connection structure and the second connection structure are both provided with sliding grooves extending in the first direction; the first probe assembly and the second probe assembly are slidably connected to the corresponding sliding grooves.

[0022] In an alternative embodiment of the present application, the sliding groove includes a first section and a second section in the direction of its groove depth, and the cross-sectional areas of the first section and the second section increase in sequence in the direction of the groove depth.

[0023] In an alternative embodiment of the present application, the pressing device further includes a control board, and the control board is arranged on the frame assembly and electrically connected to the first pressing mechanism and the second pressing mechanism.

[0024] The second aspect of the present application further provides a battery component accommodating device, including the above-mentioned pressing device.

[0025] In summary, the pressing device for battery component accommodation provided by the present application has at least the following beneficial effects:

[0026] 1. The existing battery pressing system needs to move the tray through a lifting mechanism to cooperate with the pressing mechanism. This method requires high power to drive the lifting mechanism. Especially for some special types of batteries, such as long blade batteries, due to their large volume and weight, a large amount of energy consumption is required for driving; while the design of the present application realizes pressing by fixing the tray and moving the first pressing mechanism and the second pressing mechanism, thereby significantly reducing the energy consumption of the pressing process.

[0027] 2. During the pressing process, the tray remains relatively static on the frame assembly (i.e., ignoring the slight movement of the tray at the initial contact), and by moving the first pressing mechanism and the second pressing mechanism respectively in the direction close to the tray, the force on the tray can be more balanced. Compared with the prior art, it can avoid structural interference or misalignment caused by the offset of the tray during the pressing process, thereby improving the safety of the formation operation and the pressing quality.

[0028] 3. The first pressing mechanism and the second pressing mechanism can move along a single linear trajectory on the frame assembly respectively, and can realize synchronous pressing of the battery, which has higher production efficiency; in addition, the first pressing mechanism and the second pressing mechanism only need to move in a shorter stroke to complete the pressing operation; at the same time, since the weight driven by the first pressing mechanism and the second pressing mechanism is relatively small (rather than the entire tray and the battery), the error accumulation can be significantly reduced during the movement process compared with the prior art, thereby improving the positioning accuracy of the pressing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic diagram of the structure of the pressing device provided in an embodiment of the present application when viewed from the first direction;

[0031] Figure 2 A schematic diagram of the structure of the pressing device provided in an embodiment of the present application when viewed from the second direction;

[0032] Figure 3 A schematic diagram of the structure of a positioning assembly in a pressing device provided in an embodiment of the present application;

[0033] Figure 4 A partial structural schematic diagram of a first pressing mechanism in a pressing device provided in an embodiment of the present application;

[0034] Figure 5 A partial structural schematic diagram of a second pressing mechanism in the pressing device provided in an embodiment of the present application; and

[0035] Figure 6 A schematic diagram of the structure of the slide provided in an embodiment of the present application.

[0036] The reference numerals are as follows:

[0037] 100. Pressing device;

[0038] 10. Rack assembly; 11. Fixed frame; 111. Platform bracket; 112. Frame structure; 12. Positioning assembly; 121. Support seat; 1211. Receiver; 1212. Extender; 122. Positioning member; 13. Guide body; 14. Rear limit plate; 15. Limit column;

[0039] 20. First pressing mechanism; 21. First movable frame; 22. First probe assembly; 23. First guiding column; 24. First telescopic cylinder; 25. First connecting structure; 251. First connecting unit; 252. Second connecting unit;

[0040] 30. Second pressing mechanism; 31. Second movable frame; 32. Second probe assembly; 33. Second guiding column; 34. Second telescopic cylinder; 35. Second connecting structure;

[0041] F. Placement area; B. Inlet; C. Slide groove; C1. First section; C2. Second section. Detailed implementation manner

[0042] In the description of the present application, it should be understood that when terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are used to indicate the orientation or positional relationship, without special instructions, it is understood as the orientation or positional relationship based on the figures shown. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be understood as a limitation to the present application.

[0043] In addition, features limited by "first" and "second" are only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Features limited by "first" and "second" may explicitly or implicitly include at least one of the limited features. When the description of "a plurality" appears, the general meaning is at least including two, such as two, three, etc., unless otherwise specifically limited.

[0044] In the present application, unless otherwise clearly specified and limited, when terms such as "installation", "connection", "connection", "fixation", etc. are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It can be the connection inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0045] In the description of this specification, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0046] Please refer to Figure 1 , the pressing device 100 provided by the embodiment of the present utility model for battery component accommodation includes a frame assembly 10, a first pressing mechanism 20, and a second pressing mechanism 30; the frame assembly 10 is used to carry a tray loaded with batteries; the frame assembly 10 refers to the main frame for support in the pressing device 100, and both the first pressing mechanism 20 and the second pressing mechanism 30 are arranged on the pressing device 100; based on a general inventive concept of the present utility model, the first pressing mechanism 20 and the second pressing mechanism 30 are arranged on the frame assembly 10, and the first pressing mechanism 20 and the second pressing mechanism 30 are arranged to be able to move towards the tray to press the battery.

[0047] Among them, the frame assembly 10 is the main support structure of the pressing device 100, and the frame assembly 10 has a specific placement area for the tray; the tray is a movable carrying tool that can carry and move the battery during the process of battery component accommodation. When the tray is loaded with the battery and then moved to the frame assembly 10, it is statically constrained in the placement area to wait for the pressing operation.

[0048] The first pressing mechanism 20 and the second pressing mechanism 30 can adopt an electric or pneumatic driving method. When the tray is placed in the specific placement area F of the frame assembly 10, the first pressing mechanism 20 and the second pressing mechanism 30 move towards the tray to press the battery.

[0049] The above-mentioned "pressing" means that after applying a certain contact force to the battery through the first pressing mechanism 20 and the second pressing mechanism 30, the connections required for formation are established at the corresponding positions of the battery, and these connections can include electrical connections, negative pressure connections, etc.

[0050] In order to Figure 1For example, in a preferred embodiment, the first pressing mechanism 20 and the second pressing mechanism 30 are respectively connected to the frame assembly 10 and are oppositely arranged on both sides of the tray, for example, on the upper and lower sides along the height direction H in the figure. After the tray is transported to a specific placement area F, the first pressing mechanism 20 moves downward and the first pressing mechanism 20 moves upward to press the battery loaded on the tray.

[0051] Optionally, the first pressing mechanism 20 and the second pressing mechanism 30 can move towards the tray synchronously or asynchronously.

[0052] As a preferred mode of the embodiment of the present invention, the first pressing mechanism 20 and the second pressing mechanism 30 move towards the tray synchronously and controllably, so that the tray is subjected to relatively balanced forces. The uniform contact force distribution helps to ensure that the tray is not prone to offset or deformation during the pressing process, so as to ensure the reliability of the pressing operation.

[0053] Traditional battery pressing systems need to move the tray through a lifting mechanism to cooperate with the pressing mechanism. This method requires high power to drive the lifting mechanism. Especially for some special types of batteries, such as long blade batteries, due to their large volume and weight, a large amount of energy consumption is required for driving.

[0054] Based on the above general inventive concept, that is, using the frame assembly 10 to carry the tray loaded with the battery, and using the first pressing mechanism 20 and the second pressing mechanism 30 to move from both sides of the tray to the center to press the battery; so that during the entire pressing process of the battery, the tray remains relatively static under the support of the frame assembly 10; compared with the prior art, it can save driving energy consumption. And since the position of the tray remains fixed, the moving trajectories of the first pressing mechanism 20 and the second pressing mechanism 30 during the pressing process are single linear trajectories and the driving weight is small, thus ensuring the alignment accuracy during the pressing process. At the same time, the first pressing mechanism 20 and the second pressing mechanism 30 press from both sides, which can make the forces on both sides of the tray more balanced, thereby improving the stability and safety of the pressing.

[0055] The following provides some specific embodiments:

[0056] Such as Figure 1 , the first pressing mechanism 20 and the second pressing mechanism 30 are respectively arranged on the relative upper and lower sides of the tray; wherein the first pressing mechanism 20 includes a first movable frame 21 capable of lifting movement, and a first probe assembly 22 connected to the first movable frame 21; the second pressing mechanism 30 includes a second movable frame 31 capable of lifting movement and a second probe assembly 32 connected to the second movable frame 31; the first movable frame 21 and the second movable frame 31 are arranged to be capable of moving towards the tray, so that the first probe assembly 22 and the second probe assembly 32 press the battery.

[0057] Specifically, at the relative positions of the battery, tab ears are respectively provided for the first probe assembly 22 and the second probe assembly 32, and the first probe assembly 22 and the second probe assembly 32 are respectively connected to the corresponding tab ears. In one way, the polarities of the tab ears are opposite on the corresponding two sides of the battery, that is, the first probe assembly 22 is connected to the negative tab ear (positive tab ear), while the second probe assembly is connected to the positive tab ear (negative tab ear). In some special battery types, both the positive tab ear and the negative tab ear can be provided on one side of the battery. The first probe assembly 22 and the second probe assembly 32 are respectively connected to the corresponding tab ears on the same side.

[0058] When the first probe assembly 22 and the second probe assembly 32 move asynchronously, the first probe assembly 22 and the second probe assembly 32 first connect to the positive tab ear of the battery, and then connect to the negative tab ear. This avoids their accidental contact with the battery housing or other grounded parts to form a short circuit, reducing potential safety risks.

[0059] In another embodiment, according to different battery types, such as when the tab ears of the battery are provided on the left and right sides, the first pressing mechanism 20 and the second pressing mechanism 30 can also be respectively provided on the left and right sides of the tray. At this time, the first pressing mechanism 20 includes a first movable frame 21 capable of horizontal movement, and a first probe assembly 22 connected to the first movable frame 21; the second pressing mechanism 30 includes a second movable frame 31 capable of horizontal movement and a second probe assembly 32 connected to the second movable frame 31; the first movable frame 21 and the second movable frame 31 are arranged to be able to move towards the tray, so that the first probe assembly 22 and the second probe assembly 32 press the battery in the horizontal direction.

[0060] As Figure 1 and Figure 2 , the frame assembly 10 includes a fixed frame 11 and a positioning component 12, and the positioning component 12 is arranged on the fixed frame 11 and is used to carry the tray loaded with the battery.

[0061] The frame assembly 10 provides an installation platform for other components and bears the weight of the entire device and the tray. The positioning component 12 is installed on the fixed frame 11, and it is necessary to ensure that the tray can be accurately and stably constrained in the placement area F, that is, mainly to play a role in restricting the degrees of freedom and positioning of the tray, so as to facilitate the subsequent pressing process.

[0062] In some optional embodiments, the positioning component 12 may include a limiting block to restrict the position of the tray; it may also include a positioning fixture, that is, fix its position by clamping the edge or specific part of the tray; the positioning component 12 may also include a positioning pin or a positioning hole, that is, corresponding positioning holes and positioning pins may be designed on the tray and the frame assembly 10, and the tray is accurately aligned by inserting the positioning pin into the positioning hole.

[0063] In a preferred embodiment of the present utility model, the fixed frame 11 includes a platform bracket 111 and a frame structure 112 disposed on the platform bracket 111; the frame structure 112 is provided with a guiding inlet B for placing the tray on the positioning assembly 12 along a horizontal first direction L.

[0064] Specifically, the guiding inlet B is arranged on the frame structure 112, and its position and size are designed to ensure that the tray can be smoothly placed on the positioning assembly 12 along the horizontal first direction L. After an operator or an automatic transport device pushes the tray loaded with batteries into the guiding inlet B along the horizontal first direction L, the positioning assembly 12 restricts the degrees of freedom and positions the tray to ensure its stability and correct testing or operating position.

[0065] As a preferred solution of the present utility model, the frame structure 112 is movably connected to the platform bracket 111.

[0066] It can be understood that in order to meet the testing or operating requirements of different battery types, the frame structure 112 is designed to be movably connected to the platform bracket 111, enabling it to change the type of the frame structure 112 for different battery types and specifications.

[0067] The movable connection can be achieved in various ways, such as rail sliding, threaded connection, snap connection, detachable screw connection, etc. The specific connection method is not limited, as long as different-sized frame structures 112 can be replaced on the platform bracket 111. Thus, the pressing device 100 can adapt to different battery types in terms of size, shape, and weight, without the need for large-scale modification or re-design of the entire device, reducing costs and development time.

[0068] Such as Figure 1 and Figure 3 , the positioning assembly 12 includes a support seat 121 disposed on the platform bracket 111 and a positioning member 122 disposed on the support seat 121; the support seat 121 is used to support the tray, and the positioning member 122 is used to position the position of the tray.

[0069] The support seat 121 is installed on the platform bracket 111 and is used to raise the tray a certain distance relative to the platform bracket 111. This helps to keep an appropriate distance between the tray and the platform bracket 111, avoiding the possibility of potential structural interference, while facilitating bottom heat dissipation and preventing heat concentration.

[0070] The positioning member 122 is a device installed on the support base 121 for restricting the position of the tray to ensure its accurate position during testing, charging, or assembly. In an alternative solution, the positioning member 122 can be implemented using pins, jigs, magnetic positioning, or other means to achieve precise positioning of the tray. Ensure that the tray can be positioned quickly and accurately and maintained in the placement area F.

[0071] Continue to refer to Figure 1 , the number of the positioning components 12 is at least two, and they are spaced apart in the second direction W. Specifically, the positioning components 12 are respectively arranged on both sides of the corresponding tray, and the positioning components 12 on both sides support the tray together; they can position the tray simultaneously, thereby ensuring precise positioning of the tray on the horizontal plane.

[0072] Among them, the above-mentioned second direction W is perpendicular to the first direction L in which the tray is input into the guiding inlet B on the horizontal plane.

[0073] In an embodiment of the present utility model, the distance between the positioning components 12 in the second direction W and the height of the support base 121 of a single positioning component 12 are both set to be adjustable.

[0074] In a feasible implementation manner, the support base 121 and the platform bracket 111 are also movably connected; support bases 121 of multiple different sizes (such as height and width) are provided, and multiple corresponding installation points are provided on the platform bracket 111. For different types of batteries, different models of support bases 121 are provided on the platform bracket 111 to adapt to trays of different sizes and increase the flexibility of the entire device.

[0075] Continue to refer to Figure 4 , in the structure of a specific support base 121, the support base 121 includes a receiving portion 1211 and an extending portion 1212. The receiving portion 1211 is used to support the tray, and the extending portion 1212 extends along the second direction W and towards the direction of the tray;

[0076] In an embodiment, the positioning member 122 uses a positioning pin, and the positioning pin is connected to the extending portion 1212 and is higher than the receiving surface of the receiving portion 1211 in the height direction H.

[0077] The extension part 1212 extends from the receiving part 1211 along the second direction W (i.e., perpendicular to the tray pushing direction) and towards the direction of the tray, enabling the extension part 1212 to be closer to the edge of the tray. The extension part 1212 provides a suitable installation position for the positioning part 122. The positioning pin cooperates with the positioning hole or positioning groove on the tray to limit the movement of the tray in the horizontal plane (i.e., the second direction W). And since the positioning pin is higher than the receiving surface in height, when the tray is placed on the receiving part 1211, the positioning pin can contact the tray first and guide the tray into the correct position. Through the cooperation of the receiving part 1211 and the extension part 1212, the support seat 121 provides stable and reliable support for the tray.

[0078] As Figure 1 and Figure 2 , in the embodiment of the present utility model, the frame assembly 10 further includes a guiding body 13 provided on the frame structure 112, and the guiding body 13 is configured to constrain the tray in the second direction W when the tray is placed on the positioning assembly 12.

[0079] Furthermore, the guiding body 13 at least partially protrudes from the frame structure 112 in the first direction L, enabling the guiding body 13 to contact the tray in advance before the tray is placed on the positioning assembly 12, playing a role in guiding the path of the tray and ensuring that the tray is in an accurate position in the second direction W. This pre-positioning can reduce the risk of structural interference between the tray and the positioning part 122, improve the accuracy of tray positioning, reduce the operation difficulty, and improve the operation efficiency.

[0080] The frame assembly 10 further includes a rear limiting plate 14, and the rear limiting plate 14 is provided on the platform bracket 111 and on the side of the frame structure 112 away from the guiding inlet B for limiting the tray in the first direction L. When the tray enters the placement area F along the first direction L, after the rear limiting plate 14 moves to the set stroke, it blocks the tray from moving forward, thereby ensuring that the tray reaches a predetermined position in the first direction L and improving the position accuracy of the tray during pressing.

[0081] Continuing to refer to Figure 3 , the frame assembly 10 further includes a limiting post 15, and the limiting post 15 is provided on the side of the frame structure 112 close to the first pressing mechanism 20. The limiting post 15 is used to limit the descending stroke of the first pressing mechanism 20. The limiting post 15 can ensure the safety of the first pressing mechanism 20 when performing pressing, preventing battery damage or even accidents that may be caused by excessive pressing.

[0082] In an alternative embodiment, when the first pressing mechanism 20 starts to perform the pressing task, it descends along a predetermined linear path. As the pressing mechanism gradually approaches the corresponding tab on the battery, the pressing force gradually increases. When the bottom or a specific part of the first pressing mechanism 20 contacts the limit post 15, the limit post 15 blocks the first pressing mechanism 20 from descending further. At this time, the pressing operation is completed, and the predetermined pressing effect is achieved. By setting the limit post 15, each time the first pressing mechanism 20 performs the descending pressing operation, it stops at the same position, thus ensuring the accuracy and consistency of the operation.

[0083] Those skilled in the art can understand that when the frame structure 112 is changed in type, the positioning members and limiting members (such as the guiding body 13, the rear limiting plate 14, the limit post 15, etc.) connected thereto can all be changed in type according to requirements.

[0084] Continue to refer to Figure 4 and Figure 5 , in an alternative manner, the first pressing mechanism 20 further includes a first guiding post 23 and a first telescopic cylinder 24. The first guiding post 23 is arranged on the side of the frame structure 112 away from the second pressing mechanism 30, and the first telescopic cylinder 24 is connected to the first movable frame 21 to drive the first movable frame 21 to lift along the first guiding post 23.

[0085] In an alternative manner, the second pressing mechanism 30 includes a second guiding post 33 and a second telescopic cylinder 34. The second guiding post 33 is connected to the side of the platform bracket 111 away from the first pressing mechanism 20, and the second telescopic cylinder 34 is connected to the second movable frame 31 to drive the second movable frame 31 to lift along the second guiding post 33.

[0086] Among them, the first guiding post 23 and the second guiding post 33 respectively provide stable lifting paths for the first movable frame 21 and the second movable frame 31, ensuring that the movable frames do not deviate from the predetermined trajectory during the pressing process. At the same time, the precise control of the first telescopic cylinder 24 and the second telescopic cylinder 34 enables the pressing operation to be carried out according to the preset stroke, greatly improving the pressing accuracy. Compared with the traditional pressing method, the method of using guiding posts to guide the first movable frame 21 and the second movable frame 31 respectively for pressing requires a shorter pressing stroke and has a smaller cumulative error; and the first movable frame 21 and the second movable frame 31 can move synchronously, reaching the preset pressing position and pressure faster, thereby improving the production efficiency.

[0087] The first movable frame 21 is connected with multiple groups of first connection structures 25 arranged at intervals along the second direction W, and the second movable frame 31 is connected with multiple groups of second connection structures 35 arranged at intervals along the second direction W; the first probe assembly 22 and the second probe assembly 32 are detachably connected to the first movable frame 21 and the second movable frame 31 through the first connection structure 25 and the second connection structure 35 respectively. That is, the first probe assembly 22 and the second probe assembly 32 can be conveniently connected or detached from the movable frame in a modular form. This design makes the maintenance, replacement or upgrade of the device simpler and faster.

[0088] It can be understood that since the first probe assembly 22 and the second probe assembly 32 are connected to the movable frame through detachable connection structures, the number, position and layout of the probe assemblies can be flexibly adjusted according to actual needs. This increases the adaptability and flexibility of the pressing device 100, enabling it to process batteries of different sizes, shapes or requirements. This modular and detachable design makes the pressing device 100 easier to achieve standardization, thereby reducing production costs, improving production efficiency, and making the device easier to maintain and upgrade.

[0089] Further, in the application scenario corresponding to negative pressure formation, each group of the first connection structures 25 includes a first connection unit 251, and the first probe assembly 22 is detachably connected to the frame structure 112 through the first connection unit 251. The pressing device 100 further includes a negative pressure assembly 40, and each group of the first connection structures 25 further includes a second connection unit 252, and the negative pressure assembly 40 is detachably connected to the frame structure 112 through the second connection unit 252.

[0090] It can be understood that the negative pressure assembly 40 is used to create or maintain a negative pressure channel to extract the internal gas in the battery to form a vacuum environment. The design of each group of the first connection structures 25, including the first connection unit 251 and the second connection unit 252, is arranged at intervals in the second direction W, so that when the battery pressing process is performed, the two connection units can perform different functions respectively. The first connection unit 251 installs the first probe assembly 22 for making electrical connection with the corresponding tab on the battery to realize the electrical performance test or charge / discharge operation of the battery. And the second connection unit 252 installs the negative pressure assembly 40 for connecting with the battery to form a negative pressure channel to extract the internal gas of the battery to realize the vacuum treatment of the battery. When the first movable frame 21 moves downward to perform the pressing process, the first probe assembly 22 and the negative pressure assembly 40 are synchronously connected to the corresponding components on the battery. This improves work efficiency and also ensures the connection consistency and reliability of the electrical connection and the vacuum treatment.

[0091] Refer to Figure 6, both the first connection structure 25 and the second connection structure 35 are provided with a chute C, and the chute C extends along the first direction L; the first probe assembly 22 and the second probe assembly 32 are slidably connected to the corresponding chute C.

[0092] Since both the first probe assembly 22 and the second probe assembly 32 are slidably connected to the chute C, they can be precisely adjusted along the direction of the chute C (i.e., the first direction L). This enables the convenient adjustment of the position of the probe assemblies to ensure their precise alignment with the tabs or other connection points on the battery; and by sliding to adjust the position of the probe assemblies, batteries of different sizes and layouts can be adapted, and the correct matching with the connection points of the battery can be ensured by adjusting the positions of the first probe assembly 22 and the second probe assembly 32, improving the versatility and expandability of the device.

[0093] When the first probe assembly 22 and the second probe assembly 32 need to be disassembled, slide them along the first direction L to the port of the chute C and remove them. Conversely, when installing the first probe assembly 22 and the second probe assembly 32, also move them along the first direction L through the port of the chute C to the desired position.

[0094] In one way, the chute C includes a first section C1 and a second section C2 along its groove depth direction, and the cross-sectional areas of the first section C1 and the second section C2 increase in sequence along the groove depth direction. Simply put, that is, the first section C1 and the second section C2 are continuous in the vertical direction. For the chute on the first connection structure 25, the second section C2 is located above the first section C1; conversely, in the second connection structure 35, the second section C2 is located below the first section C1. Thus, the fixation of the first probe assembly 22 and the second probe assembly 32 is realized.

[0095] In the embodiment of the present utility model, the pressing device 100 further includes a control board (not shown in the figure), the control board is connected to the frame assembly 10, and the control board is electrically connected to the first pressing mechanism 20 and the second pressing mechanism 30. Exemplarily, for example, it controls the first probe assembly 22 and the second probe assembly 32 to work according to a predetermined instruction; such as parameters such as the current magnitude, moving speed, pressing time, and pressing force of the first probe assembly 22 and the second probe assembly 32. By directly connecting the control board to the frame assembly 10, the arrangement of wires and cables can be simplified, the transmission distance can be reduced so as to speed up the response time, and the structure of the entire pressing device 100 can be made more compact, reducing the occupied space and improving the integration degree.

[0096] Furthermore, those skilled in the art should understand that if all or part of the sub-modules involved in each product of the pressing device 100 provided by the embodiments of the present utility model are combined or replaced by means such as condensation, simple change, and mutual transformation, such as moving the positions of each component, such as designing an automatic welding system; or a detachable design; or integrating the products formed thereby, such as an integrated design; as long as the combined components can form a device / device / system with specific functions, replacing the corresponding components of the present utility model with such a device / device / system also falls within the protection scope of the present utility model.

[0097] Accordingly, the embodiments of the present utility model further provide a battery component capacity device (not shown in the figure), including the pressing device 100 as described above.

[0098] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements, and variations to the above embodiments within the scope of the present application.

Claims

1. A pressing device for battery formation and grading, characterized in that, It includes a frame assembly (10), a first pressing mechanism (20) and a second pressing mechanism (30); The frame assembly (10) is used to carry a tray loaded with batteries; The first pressing mechanism (20) and the second pressing mechanism (30) are arranged on the frame assembly (10), and the first pressing mechanism (20) and the second pressing mechanism (30) are arranged to be able to move in the direction towards the tray to press the battery.

2. The pressing device according to claim 1, wherein The first pressing mechanism (20) includes a first movable frame (21) capable of lifting movement, and a first probe assembly (22) connected to the first movable frame (21); The second pressing mechanism (30) includes a second movable frame (31) capable of lifting movement and a second probe assembly (32) connected to the second movable frame (31); The first movable frame (21) and the second movable frame (31) are arranged to be able to move in the direction towards the tray, so that the first probe assembly (22) and the second probe assembly (32) press the battery.

3. The lamination device according to claim 2, wherein, The frame assembly (10) includes a fixed frame (11) and a positioning component (12), and the positioning component (12) is arranged on the fixed frame (11) and is used to carry a tray loaded with batteries.

4. The pressing device according to claim 3, wherein The fixed frame (11) includes a platform support (111) and a frame structure (112) arranged on the platform support (111); The frame structure (112) is provided with a guiding inlet (B), and the guiding inlet (B) is used for the tray to be placed on the positioning component (12) along the horizontal first direction (L).

5. The laminating device according to claim 4, wherein The frame structure (112) is movably connected to the platform support (111).

6. The pressing device according to claim 4, wherein The positioning component (12) includes a support seat (121) arranged on the platform support (111) and a positioning member (122) arranged on the support seat (121); The support seat (121) is used to support the tray, and the positioning member (122) is used to position the position of the tray.

7. The lamination device according to claim 4, characterized in that The frame assembly (10) further includes a guiding body (13) arranged on the frame structure (112), and the guiding body (13) is arranged to constrain the tray in the second direction (W) when the tray (T) is placed on the positioning component (12).

8. The lamination device according to claim 4, characterized in that, The frame assembly (10) further includes a rear limiting plate (14), and the rear limiting plate (14) is arranged on the platform support (111); and the rear limiting plate (14) is located on the side away from the guiding inlet (B) to be used for limiting the tray in the first direction (L).

9. The lamination device according to claim 4, wherein, The frame assembly (10) further includes a limit post (15), and the limit post (15) is connected to the frame structure (112); and the limit post (15) is located on one side close to the first pressing mechanism (20) for limiting the descending stroke of the first pressing mechanism (20).

10. The pressing device according to claim 4, wherein the first pressing mechanism (20) further includes a first guiding post (23) and a first telescopic cylinder (24), the first guiding post (23) is connected to the frame structure (112), and the first guiding post (23) is located on the side away from the second pressing mechanism (30); the first telescopic cylinder (24) is connected to the first movable frame (21) to drive the first movable frame (21) to move up and down along the first guiding post (23); and / or the second pressing mechanism (30) includes a second guiding post (33) and a second telescopic cylinder (34), the second guiding post (33) is connected to the platform bracket (111), and the second guiding post (33) is located on the side away from the first pressing mechanism (20), the second telescopic cylinder (34) is connected to the second movable frame (31) to drive the second movable frame (31) to move up and down along the second guiding post (33).

11. The pressing device according to claim 4, wherein the first movable frame (21) is connected with a plurality of groups of first connection structures (25) arranged at intervals along the second direction (W), and the second movable frame (31) is connected with a plurality of groups of second connection structures (35) arranged at intervals along the second direction (W); the first probe assembly (22) and the second probe assembly (32) are detachably connected to the first movable frame (21) and the second movable frame (31) through the first connection structure (25) and the second connection structure (35) respectively.

12. The lamination device according to claim 11, characterized in that, Each group of the first connection structures (25) includes a first connection unit (251), and the first probe assembly (22) is detachably connected to the frame structure (112) through the first connection unit (251).

13. The lamination device according to claim 11, characterized in that, The pressing device further includes a negative pressure assembly (40), and each group of the first connection structures (25) further includes a second connection unit (252), and the negative pressure assembly (40) is detachably connected to the frame structure (112) through the second connection unit (252).

14. The pressing device according to claim 11, wherein the first connection structure (25) and the second connection structure (35) are both provided with a sliding groove (C), and the sliding groove (C) extends along the first direction (L); the first probe assembly (22) and the second probe assembly (32) are slidably connected to the corresponding sliding groove (C).

15. The lamination device according to claim 2, characterized in that, The pressing device further includes a control board, and the control board is arranged on the frame assembly (10) and electrically connected to the first pressing mechanism (20) and the second pressing mechanism (30).

16. A batteryized component capacitance device, characterized in that, including: the pressing device according to any one of claims 1 to 15.

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