A battery clamp system, guide

Abstract

The application discloses a clamp system and a guide device of a battery, the clamp system comprises at least two laminated layers of laminates and a guide device connected to the laminates, there is a containing space for containing the battery between the two adjacent layers of laminates, and the guide device is used for guiding the battery to be put into the containing space and / or guiding the battery to be taken out of the containing space; the guide device comprises a guide base and a conductive component, and the conductive component is also used for electrically connecting an external detection device; wherein, under the condition that the clamp system is subjected to a clamping force along a constraint direction, if the containing space does not contain the battery, the conductive components of the guide devices on the two adjacent layers of laminates are in contact with each other to form an electrical connection. According to the application, the conductive component is arranged on the guide device, the conductive components on the two adjacent layers of laminates are in contact with each other to form an electrical connection under the condition that the containing space does not contain the battery, and thus the battery leakage condition can be accurately detected, and the leakage risk is reduced.

Description

Technical Field

[0001] This application relates to the field of battery testing technology, specifically to battery clamping systems and guiding devices. Background Technology

[0002] In the critical process of forming and testing pouch batteries, the hot and cold pressing fixture system plays a crucial role. The guide device of the fixture shelf, which resembles a rocket in shape, is called the "rocket nose". It is used to ensure that the pouch batteries can be accurately and smoothly placed and removed in the pressurized shelf. Currently, the common guide devices are fixed type and spring type, which are fixed to the shelf by magnetic attraction.

[0003] However, existing guidance solutions have safety hazards. In the battery placement process, especially in manually operated cabinets, the probability of batteries being missed is relatively high due to the complete reliance on manual placement. Once a battery is missed in the shelf, the strong pressure during the clamping system pressurization process can directly damage the PCB board, and the shelf structure will also suffer serious damage. This will undoubtedly greatly increase production and maintenance costs and reduce production efficiency.

[0004] Furthermore, the ambient temperature rises sharply during the operation of the hot press fixture system, reaching a maximum of approximately 65°C. Commonly used optoelectronic detection components on the market have a normal operating temperature limit of only 55°C, making them unable to operate stably in the high-temperature environment surrounding the hot press fixture system. This renders the method of detecting missing items using conventional optoelectronic detection equipment difficult to implement. Utility Model Content

[0005] This application provides a battery clamping system to solve the above-mentioned technical problems;

[0006] This application provides a guiding device to solve the above-mentioned technical problems;

[0007] In a first aspect, this application provides a battery clamping system, the clamping system comprising at least two stacked layers and a guide device connected to the layers, wherein an accommodating space for accommodating a battery is provided between adjacent layers, and the guide device is used to guide the battery into the accommodating space and / or guide the battery out of the accommodating space;

[0008] The guiding device includes:

[0009] A guide base is connected to the shelf plate;

[0010] A conductive component is connected to the guide base, and the conductive component is also used for electrically connecting to an external detection device; wherein, when the clamping system is subjected to a clamping force along the restraint direction, if the accommodating space does not accommodate the battery, the conductive components of the guide devices on adjacent layers of the plates come into contact with each other to form an electrical connection.

[0011] In one embodiment of this application, the conductive component includes a conductor and a signal line. The conductors of the conductive components on two adjacent layers are arranged opposite to each other. A first end of the signal line is connected to the conductor, and a second end of the signal line is connected to the detection device.

[0012] In one embodiment of this application, the conductor includes a spring and a conductive portion, the conductive portion being electrically connected to the spring, and the first end of the signal line being connected to the conductive portion.

[0013] In one embodiment of this application, the conductive part includes a connected nail head and a nail cap, the nail cap being disposed on the spring piece, and the nail head being connected to the first end of the signal line.

[0014] In one embodiment of this application, the guiding device further includes a spring, the guiding base is provided with a limiting hole, the side of the spring facing the guiding base is provided with a connecting block, the first end of the spring is connected to the connecting block, the second end of the spring is disposed in the limiting hole, and the spring is used to drive the spring to reset in a direction away from the guiding base.

[0015] In one embodiment of this application, in the stacking direction of the layer plates, the spring sheet is bent away from the guide device, and at least a portion of the spring sheet can elastically deformably protrude from the plane containing the side surface of the layer plate.

[0016] In one embodiment of this application, the bottom of the guide device has a base for connecting the shelf, the first end of the spring is connected to the top of the guide device, and the first end of the spring is disposed in the groove of the base.

[0017] In one embodiment of this application, the shelf includes a shelf body and mounting plates disposed at both ends of the shelf body. The mounting plates are provided with through holes. At least one end of the shelf body is provided with a tab contact plate. The tab contact plate is provided with a tab connecting block on its side near the shelf body. The bottom of the tab contact plate is provided with a signal terminal.

[0018] Secondly, this application provides a guiding device for connecting to the shelf of a battery clamping system, the guiding device for guiding the battery into the receiving space between two adjacent shelf plates and / or guiding the battery out of the receiving space between two adjacent shelf plates;

[0019] The guiding device includes:

[0020] A guide base for connecting to the shelf;

[0021] A conductive component is connected to the guide base, and the conductive component is also used for electrically connecting to an external detection device; wherein, when the clamping system is subjected to a clamping force along the restraint direction, if the accommodating space does not accommodate the battery, the conductive components of the guide devices on adjacent layers of the plates come into contact with each other to form an electrical connection.

[0022] The beneficial effects of this application are: by setting conductive components on the guide device, when the accommodating space does not contain a battery, the conductive components on the adjacent two layers of the plate contact each other to form an electrical connection, thereby accurately detecting battery leakage. This effectively solves the problem of relying on manual placement and lacking effective detection methods in the prior art, reduces the risk of leakage, and ensures the efficient and stable operation of the soft-pack battery formation and capacity testing process. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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 stacking of the laminates according to an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the top structure of the shelf in an embodiment of this application;

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

[0027] Figure 4 This is a front view of the guiding device structure according to an embodiment of this application;

[0028] Figure 5 This is a side view of the guide device structure according to an embodiment of this application;

[0029] Figure 6 This is a bottom view of the guide device structure according to an embodiment of this application;

[0030] Figure 7 This is a schematic diagram of the structure of the layer plate according to an embodiment of this application;

[0031] Figure 8 This is a structural side view of the layer plate according to an embodiment of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Sheet plate; 11. Sheet plate body; 111. Insertion hole; 12. Mounting plate; 121. Through hole; 13. Electrode contact plate; 131. Electrode connecting block; 132. Signal terminal; 2. Guide device; 21. Guide base; 211. Magnetic base; 212. Pin; 22. Conductive component; 221. Conductor; 222. Signal line; 223. Spring; 224. Conductive part; 225. Nail head; 26. Nail cap; 227. First guide slope; 228. Second guide slope; 23. Spring; 24. Connecting block; 25. Limiting hole; A. Restraint direction. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0034] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "stacked," etc., 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] Those skilled in the art have noted that existing guidance systems pose safety hazards. During battery placement, especially in manually operated cabinets, the probability of batteries being left out is high due to the complete reliance on manual placement. If a battery is left out on the shelf, the immense pressure applied by the clamps during pressurization can directly damage the PCB board, and the clamp structure itself will also suffer severe damage.

[0036] This application provides a guiding device for detecting battery leakage during the formation and capacity testing of soft-pack batteries, effectively solving the problem of difficult battery leakage detection in the prior art. The specific implementation of this application is illustrated by the following examples.

[0037] like Figure 1 and Figure 2As shown, this embodiment provides a battery clamping system. The clamping system includes at least two stacked layers 1 and a guide device 2 connected to the layers 1. There is a receiving space for accommodating the battery between two adjacent layers 1, and the guide device 2 is used to guide the battery into the receiving space and / or guide the battery out of the receiving space.

[0038] like Figures 3 to 6 As shown, the guide device 2 includes a guide base 21 and a conductive component 22. The guide base 21 is connected to the shelf 1. The conductive component 22 is connected to the guide base 21 and is also used for electrical connection to an external detection device. Specifically, when the clamping system is subjected to a clamping force along the restraint direction A, if the accommodating space does not accommodate the battery, the conductive components 22 of the guide devices 2 on adjacent shelf plates 1 will contact each other to form an electrical connection.

[0039] Specifically, before the battery formation and capacity testing operation, the fixture system is first installed and debugged to ensure a secure connection between the guide device 2 and the shelf 1, and the conductive component 22 is connected to the external detection device. During the restraint process, when no battery is placed in the accommodating space, the conductive components 22 of the guide device 2 on adjacent shelf 1 will contact each other to form an electrical connection. At this time, a preset signal will be generated. The external detection device continuously monitors whether the preset signal is generated. When the detection device receives the preset signal, it indicates that the conductive components 22 on adjacent shelf 1 are in contact with each other, that is, the corresponding accommodating space is not occupied by a battery. At this time, the operator can promptly find and place the battery, avoiding damage to the shelf 1 when the fixture system applies pressure. This effectively solves the problem of relying on manual placement and lacking effective detection methods in the existing technology, reduces the risk of missed placement, and ensures the efficient and stable operation of the soft-pack battery formation and capacity testing process.

[0040] In an optional embodiment, the conductive component 22 includes a conductor 221 and a signal line 222. The conductors 221 of the conductive components 22 on two adjacent layers 1 are arranged opposite to each other. The first end of the signal line 222 is connected to the conductor 221, and the second end of the signal line 222 is connected to the detection device.

[0041] Specifically, after the conductor 221 makes contact, an electrical connection path is formed, generating a preset signal, which is then transmitted to the detection device via the signal line 222.

[0042] More specifically, the signal line 222 is detachably connected to the conductor 221. In scenarios where battery leakage detection is not required, the signal line 222 can be removed without affecting the normal guidance of the battery by the guide device 2.

[0043] In an optional embodiment, the conductor 221 includes a spring 223 and a conductive portion 224, the conductive portion 224 being electrically connected to the spring 223, and the first end of the signal line 222 being connected to the conductive portion 224.

[0044] Specifically, when the accommodating space does not contain a battery, the spring piece 223 in the guide device 2 on the two adjacent layers 1 is not compressed. Since there is no battery blocking it, under the action of the clamping force applied by the clamping system along the restraint direction A, the spring piece 223 or the conductive part 224 on the adjacent layers will approach and contact each other.

[0045] When the spring contacts 223 come into contact with each other, a preset signal is generated. Since the conductive part 224 is electrically connected to the spring contacts 223, the preset signal can be conducted from the spring contacts 223 to the conductive part 224, and then transmitted to the detection device through the signal line 222 connected to the conductive part 224.

[0046] When the conductive parts 224 come into contact with each other, a preset signal is generated and transmitted to the detection device through the signal line 222 connected to the conductive parts 224.

[0047] In an optional embodiment, the conductive part 224 has a nail-shaped structure, including a connected nail head 225 and a nail cap 226. The nail cap 226 is disposed on the spring piece 223, and the nail head 225 passes through the spring piece 223 and is connected to the first end of the signal line 222.

[0048] More specifically, the conductive part 224 is detachably connected to the conductor 221. In scenarios where battery leakage detection is not required, the conductive part 224 and the signal line 222 can be removed without affecting the normal guidance of the battery by the guide device 2.

[0049] In an optional embodiment, the guide device 2 further includes a spring 23, the guide base 21 is provided with a limiting hole 25, the side of the spring piece 223 facing the guide base 21 is provided with a connecting block 24, the first end of the spring 23 is connected to the connecting block 24, and the second end of the spring 23 is provided in the limiting hole 25. The spring 23 is used to drive the spring piece 223 to reset in a direction away from the guide base 21.

[0050] Specifically, the elastic deformation of the spring 223 is provided by the spring 23. When the battery is placed into the accommodating space between two adjacent layers 1, the battery will squeeze the spring 223, causing the spring 223 to deform in the direction closer to the guide base 21 against the elastic force of the spring 23. During this process, the spring 23 is compressed and the elastic potential energy gradually increases.

[0051] During the reset phase, the elastic force generated by the spring 23 during reset is transmitted to the spring piece 223 through the connecting block 24, pushing the spring piece 223 to reset in a direction away from the guide base 21; the limiting hole 25 on the guide base 21 plays a limiting role on the second end of the spring 23, ensuring that the spring 23 remains stable during the extension and retraction process.

[0052] In an optional embodiment, in the stacking direction of the layer plate 1, the spring piece 223 is bent away from the guide device 2, and at least a portion of the spring piece 223 can elastically deform and protrude from the plane containing the side surface of the layer plate 1.

[0053] Specifically, the surface of the spring piece 223 facing away from the guide base 21 has a first guide slope 227 and a second guide slope 228. The first guide slope 227 is away from the shelf 1 relative to the second guide slope 228. The first guide slope 227 is used to guide the battery into the receiving space, and the second guide slope 228 is used to guide the battery out of the receiving space.

[0054] More specifically, in the stacking direction of the layer plate 1, the spring piece 223 is pushed by the spring 23 to bend away from the guide base 21, so as to form a first guide slope 227 and a second guide slope 228 on the surface of the spring piece 223 facing away from the guide base 21.

[0055] In an optional embodiment, the bottom of the guide device 2 has a base 211 for connecting the layer 1, and the first end of the spring piece 223 is connected to the top of the guide device 2, with the first end of the spring piece 223 disposed in the groove of the base 211.

[0056] Specifically, the first end of the spring piece 223 is connected to the top of the guide device 2, and the second end is set in the groove of the base 211. The limiting effect of the groove ensures that the spring piece 223 remains stable during deformation and prevents the spring piece 223 from falling out.

[0057] More specifically, the base 211 is a magnetic base, and the guide platform 21 is attracted to the top end face of the shelf 1 through the base 211; the top of the shelf 1 is provided with a plurality of insertion holes 111 evenly distributed along the length direction of the shelf 1 (e.g., Figure 1 and Figure 2 As shown, the guide base 21 also includes at least one pin 212 located at the lower end of the base 211 and adapted to the socket 111, the pin 212 being inserted into the socket 111.

[0058] In an alternative embodiment, such as Figure 7 , Figure 8 As shown, the shelf 1 includes a shelf body 11 and mounting plates 12 disposed at both ends of the shelf body 11. The mounting plates 12 are provided with through holes 121. At least one end of the shelf body 11 is provided with a tab connecting plate 13. The tab connecting plate 13 is provided with a tab connecting block 131 on the side near the shelf body 11. The bottom of the tab connecting plate 13 is provided with a signal terminal 132.

[0059] Specifically, the shelf 1 is provided with at least one guide device 2, which can accommodate one or two batteries in the storage space according to the size of the battery. If one battery is placed, the shelf 1 can be provided with a tab connecting block 131 on one side of the corresponding battery tab. If two batteries are placed, tab connecting blocks 131 need to be provided at both ends of the shelf body 11 to achieve corresponding connection with the battery tabs.

[0060] This embodiment provides a guiding device, such as Figures 3 to 6 As shown, the guide device 2 is used to connect to the shelf 1 of the battery clamping system. The guide device 2 is used to guide the battery into the receiving space between two adjacent shelf 1 and / or guide the battery out of the receiving space between two adjacent shelf 1.

[0061] The guide device 2 includes a guide base 21 and a conductive component 22.

[0062] The guide base 21 is used to connect to the shelf 1. The conductive component 22 is connected to the guide base 21 and is also used to electrically connect to an external detection device. Wherein, when the clamping system is subjected to a clamping force along the restraint direction A, if the accommodating space does not accommodate the battery, the conductive components 22 of the guide devices 2 on two adjacent shelf plates 1 will come into contact with each other to form an electrical connection.

[0063] Specifically, this application, by providing a conductive component 22 on the guide device 2, allows the detection device to detect the electrical connection formed by the contact of the conductive components 22 of the guide devices 2 of adjacent shelves during the restraint process when no battery is placed in the accommodating space. This accurately detects whether a battery has been leaked. This effectively avoids damage to the shelves due to excessive pressure caused by a leaked battery during the pressurization process of the clamping system, ensuring equipment safety and reducing production and maintenance costs.

[0064] It should be noted that the guide device 2 in this embodiment has been described in detail in the above embodiments, and will not be repeated here.

[0065] This embodiment provides a method for detecting open-circuit discharge in a battery, applied to a battery clamping system. The method includes:

[0066] Determine whether the detection device generates a preset signal; the preset signal indicates that the conductive components 22 on two adjacent layers 1 are in contact with each other and form an electrical connection;

[0067] If so, it is determined that the space between two adjacent layers 1 does not contain a battery.

[0068] Specifically, the guide devices 2 on the two adjacent shelf plates 1 are each equipped with conductive components 22. When no battery is placed in the accommodating space, under the clamping force of the clamping system along the restraint direction A, the conductive components 22 on the adjacent shelf plates come into contact with each other, thereby making the circuit conductive. The detection device is connected to the conductive components 22 through signal lines 222. Once the circuit is conductive, the current will be transmitted to the detection device through the signal lines, thereby identifying the battery leakage.

[0069] The testing process in this application is fast and accurate, which greatly improves testing efficiency, avoids missed detections due to human negligence, and reduces the risk of battery leakage.

[0070] The foregoing has provided a detailed description of a battery clamping system, guiding device, and anti-dry discharge detection method provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A battery clamping system, characterized in that, The clamping system includes at least two stacked layers (1) and a guide device (2) connected to the layers (1). There is a receiving space for accommodating a battery between two adjacent layers (1). The guide device (2) is used to guide the battery into the receiving space and / or guide the battery out of the receiving space. The guiding device (2) includes: The guide base (21) is connected to the layer plate (1); A conductive component (22) is connected to the guide base (21), and the conductive component (22) is also used to electrically connect to an external detection device; wherein, when the clamping system is subjected to a clamping force along the restraint direction, if the accommodating space does not accommodate the battery, the conductive components (22) of the guide devices (2) on the two adjacent layers of the shelf (1) come into contact with each other to form an electrical connection.

2. The battery clamping system according to claim 1, characterized in that, The conductive component (22) includes a conductor (221) and a signal line (222). The conductors (221) of the conductive components (22) on two adjacent layers of the layer (1) are arranged opposite to each other. The first end of the signal line (222) is connected to the conductor (221), and the second end of the signal line (222) is connected to the detection device.

3. The battery clamping system according to claim 2, characterized in that, The conductor (221) includes a spring (223) and a conductive part (224), the conductive part (224) being electrically connected to the spring (223), and the first end of the signal line (222) being connected to the conductive part (224).

4. The battery clamping system according to claim 3, characterized in that, The conductive part (224) includes a connected nail head (225) and a nail cap (226), the nail cap (226) is disposed on the spring (223), and the nail head (225) is connected to the first end of the signal line (222).

5. The battery clamping system according to claim 3, characterized in that, The guide device (2) further includes a spring (23). The guide base (21) is provided with a limiting hole (25). The side of the spring piece (223) facing the guide base (21) is provided with a connecting block (24). The first end of the spring (23) is connected to the connecting block (24), and the second end of the spring (23) is located in the limiting hole (25). The spring (23) is used to drive the spring piece (223) to reset in a direction away from the guide base (21).

6. The battery clamping system according to claim 5, characterized in that, In the stacking direction of the layer plate (1), the spring piece (223) is bent away from the guide device (2), and at least a portion of the spring piece (223) can elastically deform and protrude from the plane of the side of the layer plate (1).

7. The battery clamping system according to claim 3, characterized in that, The surface of the spring piece (223) facing away from the guide base (21) has a first guide slope (227) and a second guide slope (228). The first guide slope (227) is away from the layer plate (1) relative to the second guide slope (228). The first guide slope (227) is used to guide the battery into the receiving space, and the second guide slope (228) is used to guide the battery out of the receiving space.

8. The battery clamping system according to claim 3, characterized in that, The bottom of the guide device (2) has a base (211) for connecting the shelf (1), and the first end of the spring piece (223) is connected to the top of the guide device (2), and the first end of the spring piece (223) is located in the groove of the base (211).

9. The battery clamping system according to claim 1, characterized in that, The shelf (1) includes a shelf body (11) and mounting plates (12) disposed at both ends of the shelf body (11). The mounting plates (12) are provided with through holes (121). At least one end of the shelf body (11) is provided with a tab connecting plate (13). The tab connecting plate (13) is provided with a tab connecting block (131) on the side near the shelf body (11). The bottom of the tab connecting plate (13) is provided with a signal terminal (132).

10. A guiding device, characterized in that, The guide device (2) is used to connect to the shelf (1) of the battery clamping system. The guide device (2) is used to guide the battery into the accommodating space between two adjacent shelf (1) and / or guide the battery out of the accommodating space between two adjacent shelf (1). The guiding device (2) includes: A guide base (21) is used to connect to the layer plate (1); A conductive component (22) is connected to the guide base (21), and the conductive component (22) is also used to electrically connect to an external detection device; wherein, when the clamping system is subjected to a clamping force along the restraint direction, if the accommodating space does not accommodate the battery, the conductive components (22) of the guide devices (2) on the two adjacent layers of the shelf (1) come into contact with each other to form an electrical connection.

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