Detection device for lithium battery

Abstract

The utility model relates to the field of detection devices, in particular to a detection device for a lithium battery, which comprises a support plate, a support table, a fireproof plate, a support column, a spring plate, a spring and a shell, the top of the supporting plate is connected with the supporting table. The top of the supporting table is connected with the fireproof plate. The top of the supporting plate is connected with supporting columns. A transmission structure for lifting and sliding adjustment is arranged on the supporting column; the bottom of the transmission structure is connected with the heat-conducting column; the bottoms of the heat-conducting columns are connected with spring plates; a clamping structure for limiting the shell is arranged on the spring plate; according to the device, the stability and the accuracy of the battery detection effect can be effectively improved, isolated fire extinguishing can be carried out at the first time when high-temperature triggering is carried out through the structure of the shell, the safety risk of workers is reduced, and the safety of the workers is improved. And meanwhile, the lifting transmission stability of the device can be effectively improved through a combined transmission structure of a gear and a rack.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a detection device for lithium batteries. Background Art

[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as positive / negative electrode and non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high requirements on the environment. During the production and testing process of batteries, the safety of puncture test is one of the traditional Chinese medicine indicators of battery safety.

[0003] A Chinese patent with publication number CN115096807A discloses a lithium battery puncture detection device. The present invention provides a lithium battery puncture detection device that can replace manual puncture testing of new energy lithium batteries and prevent workers from being burned. A lithium battery puncture detection device includes a support seat, a tray, a guide sleeve, a puncture mechanism and a protective mechanism. The lower part of the support seat is connected to a tray, the middle part of the support seat is connected to a guide sleeve, a puncture mechanism for puncture detection of the lithium battery is provided between the support seat and the guide sleeve, and the lower part of the support seat is provided with a protective mechanism for isolating the lithium battery during detection. The present invention places the lithium battery in a protective shell. If the lithium battery spontaneously ignites during puncture, the protective shell plays a protective role to prevent workers from being burned.

[0004] However, the above disclosed solutions have the following shortcomings: in actual use, the above solutions have the problem of untimely fire extinguishing effect and high operation requirements and difficulty for the staff, thereby increasing the safety risks of the operators of the above devices. Utility Model Content

[0005] The purpose of the utility model is to address the technical problems existing in the background technology. The utility model proposes a detection device for lithium batteries. The utility model can effectively improve the stability and accuracy of battery detection effects through the device. The shell structure can be used to isolate and extinguish fire at the first time of high temperature triggering, thereby reducing the safety risks of workers. At the same time, the device can effectively improve the lifting and transmission stability of the device through the combined transmission structure of gears and racks, thereby ensuring the use effect of the device, and judging the safety of the battery through puncture tests of different depths of the battery.

[0006] The utility model proposes a lithium battery detection device, comprising a support plate, a support platform, a fireproof plate, a support column, a spring plate, a spring and a shell;

[0007] The top of the support plate is connected to the support platform; the top of the support platform is connected to the fireproof board; the top of the support plate is connected to the support column; the support column is provided with a transmission structure for lifting, sliding and adjusting; the bottom of the transmission structure is connected to the heat-conducting column; the bottom of the heat-conducting column is connected to the spring plate; the spring plate is provided with a clamping structure for limiting the shell; the bottom of the spring plate is provided with a puncture needle.

[0008] Preferably, the transmission structure includes a rotating bracket, a rotating shaft, a transmission gear, a rack, and a rotating handle; the bottom of the rotating bracket is connected to the top of the support column; the side of the rotating bracket is rotatably connected to the rotating shaft; the side of the rotating shaft is connected to the transmission gear; the side of the transmission gear is meshingly connected to the rack; a sliding limiter is provided on the support column, and the sliding limiter is slidably connected to the side of the rack; the side of the transmission gear is connected to the side of the rotating handle.

[0009] Preferably, the clamping structure includes a sliding part, a clamping connector, a clamping part, a limiting bracket, a sliding connector, a fuse and a thermally conductive column; the sliding part is slidingly connected to the inside of the spring plate; the side of the sliding part is connected to the sliding connector; the bottom of the sliding part is connected to the clamping connector; the bottom side of the clamping connector is connected to the clamping part; the clamping part is clamped and squeezed by the side of the shell; the side of the sliding connector is connected to the limiting bracket; the side of the limiting bracket is connected to the fuse; the side of the fuse is in contact with the thermally conductive column.

[0010] Preferably, the spring is in a compressed state, a limiting groove is provided on the side surface of the outer end surface of the shell; the limiting groove is in contact and extrusion with the clamping piece; a fireproof coating is provided on the side surface of the inner wall of the shell; and a slope is provided on the side surface of the clamping piece.

[0011] Preferably, a sliding block is provided on the top of the support column, a sliding groove is provided on one side of the rack principle transmission gear, the sliding groove is slidably connected to the sliding block, and blocking members are provided on both ends of the sliding groove, and the side surfaces of the blocking members are in contact with the sliding block.

[0012] Preferably, the limiting brackets are symmetrically arranged on both sides of the sliding connector, and the multiple groups of fuses are symmetrically distributed on both sides of the heat-conducting column; the heat-conducting column is a copper heat-conducting column.

[0013] Preferably, a sliding hole is provided on the side surface of the spring plate, and the sliding hole is slidably connected to the sliding member.

[0014] Preferably, a sealing member is provided on the bottom of the shell, and the sealing member is in contact and extrusion with the top of the fireproof board.

[0015] The above technical solution of the utility model has the following beneficial technical effects:

[0016] The utility model can effectively improve the stability and accuracy of battery detection effects through the device, and can perform isolated fire extinguishing at the first time of high temperature triggering through the structure of the shell, thereby reducing the safety risks of the staff. At the same time, the device can effectively improve the lifting and transmission stability of the device through the combined transmission structure of the gear and the rack, thereby ensuring the use effect of the device, and judge the safety of the battery through the puncture test of different depths of the battery. The device can achieve the effect of automatic triggering, thereby improving the safety effect of the device, and at the same time avoid close-range operation by security personnel, achieve the effect of fully automatic detection, and improve the food safety of security personnel. The combined structure of the shell and the fireproof board of the device can effectively improve the fireproof effect and fireproof stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of an embodiment of a lithium battery detection device of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the puncture needle in the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the support column in the embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the housing in the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the heat-conducting column in the embodiment of the utility model;

[0022] Figure numerals: 1. support plate; 2. support platform; 3. fireproof board; 4. support column; 5. rotating bracket; 6. rotating shaft; 7. transmission gear; 8. rack; 9. rotating handle; 10. spring plate; 11. sliding part; 12. clamping connector; 13. clamping part; 14. spring; 15. shell; 16. limit bracket; 17. sliding connector; 18. fuse; 19. heat conductive column; 20. puncture needle. DETAILED DESCRIPTION

[0023] Embodiment 1

[0024] like Figure 1-Figure 5 As shown, a lithium battery detection device proposed by the utility model includes a support plate 1, a support platform 2, a fireproof plate 3, a support column 4, a spring plate 10, a spring 14 and a housing 15;

[0025] The top of the support plate 1 is connected to the support platform 2; the top of the support platform 2 is connected to the fireproof board 3; the top of the support plate 1 is connected to the support column 4; the support column 4 is provided with a transmission structure for lifting and sliding adjustment; the bottom of the transmission structure is connected to the heat-conducting column 19; the bottom of the heat-conducting column 19 is connected to the spring plate 10; the spring plate 10 is provided with a clamping structure for limiting the housing 15; the bottom of the spring plate 10 is provided with a puncture needle 20;

[0026] Furthermore, the transmission structure includes a rotating bracket 5, a rotating shaft 6, a transmission gear 7, a rack 8, and a rotating handle 9; the bottom of the rotating bracket 5 is connected to the top of the support column 4; the side of the rotating bracket 5 is rotatably connected to the rotating shaft 6; the side of the rotating shaft 6 is connected to the transmission gear 7; the side of the transmission gear 7 is meshed with the rack 8; a sliding limiter is provided on the support column 4, and the sliding limiter is slidably connected to the side of the rack 8; the side of the transmission gear 7 is connected to the side of the rotating handle 9;

[0027] Furthermore, the clamping structure includes a sliding member 11, a clamping connector 12, a clamping member 13, a limiting bracket 16, a sliding connector 17, a fuse 18 and a heat-conducting column 19; the sliding member 11 is slidably connected to the inside of the spring plate 10; the side of the sliding member 11 is connected to the sliding connector 17; the bottom of the sliding member 11 is connected to the clamping connector 12; the bottom side of the clamping connector 12 is connected to the clamping member 13; the clamping member 13 is clamped and squeezed by the side of the shell 15; the side of the sliding connector 17 is connected to the limiting bracket 16; the side of the limiting bracket 16 is connected to the fuse 18; the side of the fuse 18 is in contact with the heat-conducting column 19.

[0028] In this embodiment, the device can effectively achieve the effect of automatic isolation and fire extinguishing, and the puncture detection effect of the device can be achieved by pressing the puncture needle 20 of the device. At the same time, the fire is controlled to reduce the safety impact of the device. When the device is in working state, the rotation effect of the transmission gear 7 of the device is achieved by rotating the rotating handle 9, which ensures the transmission stability of the device. At the same time, it is convenient for the device to accurately control the lifting position of the rack 8, and improves the operation control accuracy of the device. The structure of the spring plate 10 can ensure the stable connection of the puncture needle 20 while achieving the timely falling effect of the shell 15. When an accidental fire occurs during the puncture process, the heat is conducted to the heat-conducting column 19 through the puncture needle 20. The heat-conducting column 19 realizes heat transfer by contacting with the fuse 18, so that the fuse 18 is melted after the heat reaches a certain level. At this time, the spring 14 releases kinetic energy downward, thereby driving the clamp 13 to loosen. At this time, the shell 15 is combined with the fireproof plate 3 downward to achieve the sealing effect of the fire part of the battery, thereby avoiding further expansion of the fire.

[0029] Embodiment 2

[0030] like Figure 1-Figure 5As shown, a lithium battery detection device proposed by the utility model, compared with the first embodiment, in this embodiment, the spring 14 is in a compressed state, and a limiting groove is provided on the side surface of the outer end surface of the shell 15; the limiting groove is in contact and extruded with the clamping piece 13; a fireproof coating is provided on the side surface of the inner wall of the shell 15; a slope is provided on the side surface of the clamping piece 13; through the combination of the fuse 18 and the slope, it can be quickly melted in the event of an accidental fire, thereby releasing the clamping piece 13, and when the spring 14 releases the potential energy downward, the clamping piece 13 is loosened so that the shell 15 is quickly buckled downward, thereby blocking the spread of fire and isolating air from entering the burning object at the first time; reducing the danger during the puncture experiment.

[0031] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

[0034] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A lithium battery detection device, characterized in that: It comprises a support plate (1), a support platform (2), a fireproof plate (3), a support column (4), a spring plate (10), a spring (14) and a housing (15); The top of the support plate (1) is connected to the support platform (2); the top of the support platform (2) is connected to the fireproof plate (3); the top of the support plate (1) is connected to the support column (4); a transmission structure for lifting and sliding adjustment is provided on the support column (4); the bottom of the transmission structure is connected to the heat-conducting column (19); the bottom of the heat-conducting column (19) is connected to the spring plate (10); a clamping structure for limiting the housing (15) is provided on the spring plate (10); and a puncture needle (20) is provided on the bottom of the spring plate (10).

2. A lithium battery detection device according to claim 1, characterized in that: The transmission structure comprises a rotating bracket (5), a rotating shaft (6), a transmission gear (7), a rack (8), and a rotating handle (9); the bottom of the rotating bracket (5) is connected to the top of the supporting column (4); the side of the rotating bracket (5) is rotatably connected to the rotating shaft (6); the side of the rotating shaft (6) is connected to the transmission gear (7); the side of the transmission gear (7) is meshingly connected to the rack (8); a sliding stopper is provided on the supporting column (4), and the sliding stopper is slidably connected to the side of the rack (8); the side of the transmission gear (7) is connected to the side of the rotating handle (9).

3. A lithium battery detection device according to claim 1, characterized in that: The clamping structure comprises a sliding member (11), a clamping connector (12), a clamping member (13), a limiting bracket (16), a sliding connector (17), a fuse (18) and a heat-conducting column (19); the sliding member (11) is slidably connected to the inside of the spring plate (10); the side of the sliding member (11) is connected to the sliding connector (17); the bottom of the sliding member (11) is connected to the clamping connector (12); the bottom side of the clamping connector (12) is connected to the clamping member (13); the clamping member (13) is clamped and squeezed with the side of the housing (15); the side of the sliding connector (17) is connected to the limiting bracket (16); the side of the limiting bracket (16) is connected to the fuse (18); and the side of the fuse (18) is in contact with the heat-conducting column (19).

4. A lithium battery detection device according to claim 1, characterized in that: The spring (14) is in a compressed state, a limiting groove is provided on the side surface of the outer end surface of the shell (15); the limiting groove is in contact and compression with the clamping member (13); a fireproof coating is provided on the side surface of the inner wall of the shell (15); and a slope is provided on the side surface of the clamping member (13).

5. A lithium battery detection device according to claim 1, characterized in that: A sliding block is provided on the top of the support column (4), a sliding groove is provided on one side of the transmission gear (7) of the rack (8), the sliding groove is slidably connected with the sliding block, and blocking pieces are provided at both ends of the sliding groove, and the side surfaces of the blocking piece are in contact with the sliding block.

6. A lithium battery detection device according to claim 1, characterized in that: The limiting brackets (16) are symmetrically arranged on both sides of the sliding connector (17), and the plurality of fuse groups (18) are symmetrically distributed on both sides of the heat-conducting column (19); the heat-conducting column (19) is a copper heat-conducting column.

7. A lithium battery detection device according to claim 1, characterized in that: A sliding hole is provided on the side surface of the spring plate, and the sliding hole is slidably connected to the sliding member (11).

8. A lithium battery detection device according to claim 1, characterized in that: A sealing member is provided on the bottom of the shell (15), and the sealing member is in contact and pressed against the top of the fireproof board (3).

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