Battery clamp system, guide device and air release prevention detection method

Abstract

The invention discloses a clamp system, a guide device and an anti-empty-discharge detection method for a battery, the clamp system comprises at least two laminated laminates and the guide device connected to the laminates, and an accommodating space for accommodating the battery is arranged between the two adjacent laminates. The guide device is used for guiding the battery to be placed into the accommodating space and / or guiding the battery to be separated from the accommodating space; the guiding device comprises a guiding base table and a conductive assembly, and the conductive assembly is further used for being electrically connected with an external detection device. Wherein under the condition that the clamp system is subjected to clamping force in the restraining direction, if the containing space does not contain the battery, the conductive assemblies of the guide devices on the two adjacent laminates are in contact with each other to form electric connection. According to the application, the conductive assemblies are arranged on the guide device, and the conductive assemblies on the two adjacent laminates are in contact with each other to form electric connection under the condition that the accommodating space does not accommodate the battery, so that the battery leakage condition is accurately detected, and the leakage risk is reduced.

Description

Technical Field

[0001] This application relates to the technical field of battery detection, and specifically relates to a fixture system for batteries, a guiding device, and an anti-empty discharge detection method for batteries. Background Art

[0002] In the key process of forming and grading soft-pack batteries, the hot and cold pressing fixture system plays a crucial role. The guiding device of the fixture laminate is called the "rocket head" because of its rocket-like shape, and is used to ensure that the soft-pack battery can be accurately and smoothly inserted into and removed from the pressing laminate. Currently, the common guiding devices are fixed type and spring type, and are fixed on the laminate by magnetic attraction.

[0003] However, the existing guiding solutions have potential safety hazards. In the battery placement process, especially in cabinets with manual operation, due to complete dependence on manual placement, the probability of missing battery placement is relatively high. Once a battery is missed in the laminate, during the pressurization process of the fixture system, the strong pressure will directly cause the PCB board to be damaged, and at the same time, the laminate structure will also be severely damaged, which will undoubtedly greatly increase the production cost and maintenance cost, and reduce the production efficiency.

[0004] In addition, during the operation of the hot pressing fixture system, the surrounding environment temperature will rise sharply, and the highest surrounding temperature can reach about 65°C. The normal working limit temperature of the commonly used detection optoelectronic components in the market is only 55°C, and they cannot operate stably in the high-temperature environment around the hot pressing fixture system, which makes it difficult to use conventional detection optoelectronic devices to detect missed placement. Summary of the Invention

[0005] This application provides a fixture system for batteries to solve the above technical problems;

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

[0007] This application provides an anti-empty discharge detection method for batteries to solve the above technical problems;

[0008] In a first aspect, this application provides a fixture system for batteries. The fixture system includes at least two stacked laminates and a guiding device connected to the laminates. There is an accommodation space for accommodating batteries between adjacent two laminates, and the guiding device is used to guide the battery into the accommodation space and / or guide the battery out of the accommodation space;

[0009] The guiding device includes:

[0010] A guiding base platform, connected to the laminate;

[0011] A conductive component is connected to the guiding base, and the conductive component is also used for electrically connecting an external detection device; wherein, when the clamping force along the restraint direction acts on the fixture system, if the accommodating space does not accommodate the battery, the conductive components of the guiding devices on two adjacent layers of the laminates are in contact with each other to form an electrical connection.

[0012] In an embodiment of the present application, the conductive component includes a conductor part and a signal line. The conductor parts of the conductive components on two adjacent layers of the laminates are arranged opposite to each other. The first end of the signal line is connected to the conductor part, and the second end of the signal line is connected to the detection device.

[0013] In an embodiment of the present application, the conductor part includes a spring piece and a conductive part. The conductive part is electrically connected to the spring piece, and the first end of the signal line is connected to the conductive part.

[0014] In an embodiment of the present application, the conductive part includes a nail head part and a nail cap part connected to each other. The nail cap part is arranged on the spring piece, and the nail head part is connected to the first end of the signal line.

[0015] In an embodiment of the present application, the guiding device further includes a spring. The guiding base is provided with a limiting hole. A connecting block is arranged on the surface of the spring piece facing the guiding base. The first end of the spring is connected to the connecting block, and the second end of the spring is arranged in the limiting hole. The spring is used to drive the spring piece to reset in a direction away from the guiding base.

[0016] In an embodiment of the present application, in the stacking direction of the laminates, the spring piece is bent in a direction away from the guiding device, and at least a part of the spring piece protrudes from the plane where the side surface of the laminate is located in an elastically deformable manner.

[0017] In an embodiment of the present application, the bottom of the guiding device has a base for connecting the laminate. The first end of the spring piece is connected to the top of the guiding device, and the first end of the spring piece is arranged in the groove of the base.

[0018] In an embodiment of the present application, the laminate includes a laminate body and mounting plates arranged at both ends of the laminate body. The mounting plates are provided with through holes. At least one end of the laminate body is provided with an ear contact plate. An ear connection block is arranged on the side of the ear contact plate close to the laminate body, and a signal terminal is arranged at the bottom of the ear contact plate.

[0019] In a second aspect, the present application provides a guiding device. The guiding device is used for connecting to the laminates of the fixture system of the battery. The guiding device is used to guide the battery into the accommodating space between two adjacent laminates and / or guide the battery out of the accommodating space between two adjacent laminates;

[0020] The guiding device includes:

[0021] A guiding base for connecting with the laminate;

[0022] A conductive component connected to the guiding base, and the conductive component is also used for electrically connecting an external detection device; wherein, when the clamping force along the restraint direction is applied to the fixture system, if the battery is not placed in the accommodating space, the conductive components of the guiding devices on two adjacent laminates are in contact with each other to form an electrical connection.

[0023] In a third aspect, the present application provides a method for detecting the prevention of empty placement of a battery, which is applied to the fixture system of the battery. The method for detecting the prevention of empty placement includes:

[0024] Judging whether the detection device generates a preset signal; the preset signal indicates that the conductive components on two adjacent laminates are in contact with each other to form an electrical connection;

[0025] If so, it is determined that the accommodating space between the two adjacent laminates does not accommodate the battery.

[0026] The beneficial effects of the present application are as follows: By arranging a conductive component on the guiding device, when the battery is not placed in the accommodating space, the conductive components on two adjacent laminates are in contact with each other to form an electrical connection, so as to accurately detect the situation of missed placement of the battery, effectively solve the problems of relying on manual placement and lacking effective detection means in the prior art, reduce the risk of missed placement, and ensure the efficient and stable operation of the process of soft-pack battery chemical composition accommodation. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 It is a stacking schematic diagram of the laminate in the embodiment of the present application;

[0029] Figure 2 It is a top view structure diagram of the laminate in the embodiment of the present application;

[0030] Figure 3 It is a structural schematic diagram of the guiding device in the embodiment of the present application;

[0031] Figure 4 It is a front view of the structural schematic diagram of the guiding device in the embodiment of the present application;

[0032] Figure 5It is a side view of the guiding device structure according to an embodiment of the present application;

[0033] Figure 6 It is a bottom view of the guiding device structure according to an embodiment of the present application;

[0034] Figure 7 It is a schematic structural view of a laminate according to an embodiment of the present application;

[0035] Figure 8 It is a side view of the laminate structure according to an embodiment of the present application.

[0036] Explanation of reference numerals: 1, laminate; 11, laminate body; 111, jack; 12, mounting plate; 121, through hole; 13, tab connection plate; 131, tab connection block; 132, signal terminal; 2, guiding device; 21, guiding base; 211, magnetic base; 212, pin; 22, conductive component; 221, conductor part; 222, signal line; 223, elastic piece; 224, conductive part; 225, nail head part; 26, nail cap part; 227, first guiding slope; 228, second guiding slope; 23, spring; 24, connection block; 25, limiting hole; A, restraint direction. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the orientation terms such as "upper", "lower", "left", and "right" usually refer to the upper, lower, left, and right in the actual use or working state of the device, specifically the drawing direction in the accompanying drawings.

[0038] In the present application, unless otherwise clearly defined and limited, terms such as "connected", "connected", and "stacked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0039] Those skilled in the art related to this application have noticed that there are potential safety hazards in the existing guiding solutions. In the battery placement process, especially in cabinets with manual operations, due to complete reliance on manual placement, the probability of missing battery placement is relatively high. Once a battery is missed in the laminate, during the clamping process of the fixture, the strong pressure will directly cause the PCB board to be damaged, and at the same time, the fixture structure will also be severely damaged.

[0040] This application provides a guiding device for detecting the absence of battery placement, effectively solving the problem of difficult detection of missing battery placement during the component formation and formation process of soft-pack batteries in the prior art. The following will elaborate on the specific implementation manners of this application through embodiments.

[0041] As Figure 1 and Figure 2 shown, this embodiment provides a fixture system for batteries. The fixture system includes at least two stacked laminates 1 and a guiding device 2 connected to the laminate 1. There is an accommodation space for accommodating batteries between two adjacent laminates 1, and the guiding device 2 is used to guide the battery into the accommodation space and / or guide the battery out of the accommodation space.

[0042] As Figures 3 to 6 shown, the guiding device 2 includes a guiding base 21 and a conductive component 22. The guiding base 21 is connected to the laminate 1. The conductive component 22 is connected to the guiding base 21, and the conductive component 22 is also used to electrically connect to an external detection device; wherein, when the fixture system is subjected to a clamping force along the restraint direction A, if the accommodation space does not accommodate a battery, the conductive components 22 of the guiding devices 2 on two adjacent laminates 1 are in contact with each other to form an electrical connection.

[0043] Specifically, before the component formation and formation operation of the battery, first install and debug the fixture system to make the guiding device 2 firmly connected to the laminate 1, and connect the conductive component 22 to an external detection device. During the restraint process, based on the fact that when the accommodation space does not accommodate a battery, the conductive components 22 of the guiding devices 2 on two adjacent laminates 1 are in contact with each other to form an electrical connection, a preset signal will be generated at this time. The external detection device continuously monitors whether a preset signal is generated. When the detection device receives the preset signal, it means that the conductive components 22 on two adjacent laminates 1 are in contact with each other, that is, the corresponding accommodation space does not accommodate a battery. At this time, the operator can promptly discover and place the battery, avoiding damage to the laminate 1 when the fixture system is pressurized. It effectively solves the problem of relying on manual placement and lacking effective detection means in the prior art, reduces the risk of missing placement, and ensures the efficient and stable operation of the component formation and formation process of soft-pack batteries.

[0044] In an alternative embodiment, the conductive component 22 includes a conductor member 221 and a signal line 222. The conductor members 221 of the conductive components 22 on two adjacent laminates 1 are arranged opposite to each other. The first end of the signal line 222 is connected to the conductor member 221, and the second end of the signal line 222 is connected to the detection device.

[0045] Specifically, after the conductor members 221 are in contact, an electrical connection path is formed to generate a preset signal, and the preset signal is transmitted to the detection device through the signal line 222.

[0046] More specifically, the signal line 222 is detachably connected to the conductor member 221. In a scenario where battery leakage detection is not required, the signal line 222 can be removed, which does not affect the normal guiding of the battery by the guiding device 2.

[0047] In an alternative embodiment, the conductor member 221 includes a spring piece 223 and a conductive portion 224. The conductive portion 224 is electrically connected to the spring piece 223, and the first end of the signal line 222 is connected to the conductive portion 224.

[0048] Specifically, when the accommodating space does not accommodate a battery, in the guiding devices 2 on two adjacent laminates 1, the spring pieces 223 are in an uncompressed state. Due to the absence of the obstruction of the battery, under the action of the clamping force applied by the fixture system along the restraint direction A, the spring pieces 223 or the conductive portions 224 on the adjacent laminates will approach and contact each other.

[0049] When the spring pieces 223 are in contact with each other, a preset signal is generated. Since the conductive portion 224 is electrically connected to the spring piece 223, the preset signal can be conducted from the spring piece 223 to the conductive portion 224, and then transmitted to the detection device through the signal line 222 connected to the conductive portion 224.

[0050] When the conductive portions 224 are in contact with each other, a preset signal is generated and transmitted to the detection device through the signal line 222 connected to the conductive portion 224.

[0051] In an alternative embodiment, the conductive portion 224 has a nail-shaped structure. The conductive portion 224 includes a nail head portion 225 and a nail cap portion 226 connected to each other. The nail cap portion 226 is arranged on the spring piece 223, and the nail head portion 225 passes through the spring piece 223 and then connects to the first end of the signal line 222.

[0052] More specifically, the conductive portion 224 is detachably connected to the conductor member 221. In a scenario where battery leakage detection is not required, the conductive portion 224 and the signal line 222 can be removed, which does not affect the normal guiding of the battery by the guiding device 2.

[0053] In an alternative embodiment, the guiding device 2 further includes a spring 23. The guiding base 21 is provided with a limiting hole 25. A connecting block 24 is provided on one surface of the elastic piece 223 facing the guiding base 21. The first end of the spring 23 is connected to the connecting block 24, and the second end of the spring 23 is arranged in the limiting hole 25. The spring 23 is used to drive the elastic piece 223 to reset in a direction away from the guiding base 21.

[0054] Specifically, the elastic deformation of the elastic piece 223 is provided by the spring 23. When the battery is placed in the accommodating space between two adjacent laminates 1, the battery will squeeze the elastic piece 223, causing the elastic piece 223 to deform in a direction close to the guiding 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.

[0055] In the reset stage, the elastic force generated by the reset of the spring 23 is transmitted to the elastic piece 223 through the connecting block 24, pushing the elastic piece 223 to reset in a direction away from the guiding base 21. The limiting hole 25 on the guiding base 21 plays a limiting role on the second end of the spring 23 to ensure the stability of the spring 23 during the telescopic process.

[0056] In an alternative embodiment, in the stacking direction of the laminate 1, the elastic piece 223 is bent in a direction away from the guiding device 2, and at least a part of the elastic piece 223 protrudes elastically out of the plane where the side surface of the laminate 1 is located.

[0057] Specifically, the surface of the elastic piece 223 facing away from the guiding base 21 has a first guiding inclined surface 227 and a second guiding inclined surface 228. The first guiding inclined surface 227 is farther from the laminate 1 than the second guiding inclined surface 228. The first guiding inclined surface 227 is used to guide the battery into the accommodating space, and the second guiding inclined surface 228 is used to guide the battery out of the accommodating space.

[0058] More specifically, in the stacking direction of the laminate 1, the elastic piece 223 is pushed by the spring 23 to be bent in a direction away from the guiding base 21, so as to form a first guiding inclined surface 227 and a second guiding inclined surface 228 on the surface of the elastic piece 223 facing away from the guiding base 21.

[0059] In an alternative embodiment, the bottom of the guiding device 2 has a base 211 for connecting the laminate 1. The first end of the elastic piece 223 is connected to the top of the guiding device 2, and the first end of the elastic piece 223 is arranged in the groove of the base 211.

[0060] Specifically, the first end of the elastic piece 223 is connected to the top of the guiding device 2, and the second end is arranged in the groove of the base 211. By using the limiting effect of the groove, it is ensured that the elastic piece 223 remains stable in position during the deformation process and prevents the elastic piece 223 from coming out.

[0061] More specifically, the base 211 is a magnetic base, and the guiding base 21 is attracted to the top end face of the laminate 1 through the base 211; a plurality of jacks 111 are provided on the top of the laminate 1 and are evenly distributed along the length direction of the laminate 1 (as Figure 1 and Figure 2 shown), the guiding base 21 further includes at least one plug 212 provided at the lower end of the base 211 and adapted to the jack 111, and the plug 212 is inserted into the jack 111.

[0062] In an alternative embodiment, as Figure 7 , Figure 8 shown, the laminate 1 includes a laminate body 11 and mounting plates 12 provided at both ends of the laminate body 11. The mounting plates 12 are provided with through holes 121. At least one end of the laminate body 11 is provided with an ear connection plate 13. An ear connection block 131 is provided on the side of the ear connection plate 13 close to the laminate body 11, and a signal terminal 132 is provided at the bottom of the ear connection plate 13.

[0063] Specifically, at least one guiding device 2 is provided on the laminate 1, and one or two batteries can be placed in the accommodation space according to the size of the battery. If one battery is placed, the ear connection block 131 can be provided on one side of the laminate 1 corresponding to the ear of the battery. If two batteries are placed, the ear connection blocks 131 need to be provided at both ends of the laminate body 11 to realize the corresponding connection with the ears of the batteries.

[0064] This embodiment provides a guiding device, as Figures 3 to 6 shown, the guiding device 2 is used to connect to the laminate 1 of the fixture system of the battery, and the guiding device 2 is used to guide the battery into the accommodation space between two adjacent laminates 1 and / or guide the battery out of the accommodation space between two adjacent laminates 1.

[0065] The guiding device 2 includes a guiding base 21 and a conductive component 22. The guiding base 21 is used to connect to the laminate 1. The conductive component 22 is connected to the guiding base 21, and the conductive component 22 is also used to electrically connect to an external detection device. Among them, when the fixture system is subjected to a clamping force along the restraint direction A, if the accommodation space does not accommodate a battery, the conductive components 22 of the guiding devices 2 on two adjacent laminates 1 are in contact with each other to form an electrical connection.

[0066] Specifically, in this application, by providing the conductive component 22 on the guiding device 2, when the accommodation space does not place a battery, during the restraint process, the detection device can detect the electrical connection formed by the contact of the conductive components 22 of the guiding devices 2 on adjacent laminates 1, and can accurately detect whether the battery is missing. It effectively avoids the situation that the strong pressure damages the laminate due to the missing battery during the pressurization process of the fixture system, ensures the safety of the equipment, and reduces the production cost and maintenance cost.

[0067] It should be noted that the guiding device 2 in this embodiment has been elaborated in detail in the above embodiment, and will not be elaborated here again.

[0068] This embodiment provides a method for detecting the prevention of discharging empty of a battery, which is applied to a fixture system of the battery. The method for detecting the prevention of discharging empty includes:

[0069] Judging whether the detection device generates a preset signal; the preset signal indicates that the conductive components 22 on two adjacent layer boards 1 are in contact with each other to form an electrical connection;

[0070] If so, it is determined that the accommodation space between two adjacent layer boards 1 does not accommodate a battery.

[0071] Specifically, the guiding devices 2 on two adjacent layer boards 1 are respectively provided with conductive components 22. When the accommodation space does not place a battery, under the action of the clamping force along the restraint direction A of the fixture system, the conductive components 22 on the adjacent layer boards are in contact with each other, so that the circuit is turned on. The detection device is connected to the conductive component 22 through a signal line 222. Once the circuit is turned on, the current will be transmitted to the detection device through the signal line, so as to identify the omission of placing the battery.

[0072] The detection process of this application is fast and accurate, greatly improving the detection efficiency, avoiding the problem of missed detection caused by human negligence, and reducing the risk of battery discharge omission.

[0073] The above has introduced in detail a fixture system, a guiding device and a method for detecting the prevention of discharging empty of a battery provided by this application. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

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

2. The jig system for a battery according to claim 1, characterized in that, The conductive component (22) includes a conductor part (221) and a signal line (222). The conductor parts (221) of the conductive components (22) on two adjacent laminates (1) are arranged oppositely. The first end of the signal line (222) is connected to the conductor part (221), and the second end of the signal line (222) is connected to the detection device.

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

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

5. The jig system for a battery according to claim 3, wherein The guiding device (2) further includes a spring (23). The guiding base (21) is provided with a limiting hole (25). A connecting block (24) is provided on the surface of the spring piece (223) facing the guiding base (21). The first end of the spring (23) is connected to the connecting block (24), and the second end of the spring (23) is arranged in the limiting hole (25). The spring (23) is used to drive the spring piece (223) to reset in a direction away from the guiding base (21).

6. The jig system for a battery according to claim 5, wherein In the stacking direction of the laminate (1), the spring piece (223) is bent in a direction away from the guiding device (2), and at least a part of the spring piece (223) protrudes elastically out of the plane where the side surface of the laminate (1) is located.

7. The jig system for the battery according to claim 3, characterized in that, The bottom of the guiding device (2) has a base (211) for connecting the laminate (1). The first end of the spring piece (223) is connected to the top of the guiding device (2), and the first end of the spring piece (223) is arranged in the groove of the base (211).

8. The jig system for a battery according to claim 1, characterized in that, The laminate (1) includes a laminate body (11) and mounting plates (12) provided at both ends of the laminate body (11). The mounting plates (12) are provided with through holes (121). At least one end of the laminate body (11) is provided with an ear connection plate (13). An ear connection block (131) is provided on the side of the ear connection plate (13) close to the laminate body (11). A signal terminal (132) is provided at the bottom of the ear connection plate (13).

9. A guiding device, characterized in that, The guiding device (2) is used to connect to the laminate (1) of the battery's fixture system. The guiding device (2) is used to guide the battery into the accommodation space between two adjacent laminates (1) and / or guide the battery out of the accommodation space between two adjacent laminates (1). The guiding device (2) includes: A guiding base (21) for connecting to the laminate (1); A conductive component (22) connected to the guiding base (21). The conductive component (22) is also used for electrically connecting to an external detection device. Wherein, when the fixture system is subjected to a clamping force along the restraint direction, if the accommodation space does not accommodate the battery, the conductive components (22) of the guiding devices (2) on two adjacent laminates (1) are in contact with each other to form an electrical connection.

10. A method for detecting over-discharge of a battery, characterized in that, Applied to the fixture system of the battery as described in any one of claims 1-8, the anti-empty discharge detection method includes: Judging whether the detection device generates a preset signal; the preset signal indicates that the conductive components (22) on two adjacent laminates (1) are in contact with each other to form an electrical connection; If so, it is determined that the accommodation space between the two adjacent laminates (1) does not accommodate the battery.

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