Anti-theft device for lithium battery of electric vehicle

Abstract

The utility model discloses an anti-theft device for a lithium battery of an electric vehicle, which comprises an anti-theft box, a box cover is arranged at the top of the anti-theft box, a dehumidification box is arranged between the bottom of the box cover and the anti-theft box, four groups of connecting seats with rectangular structures are fixed at the bottom of the anti-theft box, and connecting bolts penetrate through the middles of the connecting seats. According to the anti-theft box, the coded lock is installed at the top of the anti-theft box, when the coded lock cannot be unlocked, a connecting bolt and a dismounting device are rotated, a trigger pipe on a connecting base loses limitation of the connecting bolt, the trigger pipe is pushed upwards by a spring in a limiting sliding groove, and the trigger pipe is driven to move upwards; and a filter material can be placed in a filter material placing groove, and after a large amount of water is absorbed, overflowing water can be discharged outwards through the lower surface of the bottom, so that the water is prevented from reversely permeating into the anti-theft box to influence a battery in the anti-theft box.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to an anti-theft device for lithium batteries of electric vehicles. Background Art

[0002] A centrifugal pump is a pump that transports liquid by the centrifugal force generated by the rotation of the impeller. It is a common mechanical equipment for liquid transportation. Before starting the water pump, the pump casing and the suction pipe must be filled with water, and then the motor is started to make the pump shaft drive the impeller and water to rotate at high speed. The water undergoes centrifugal motion and is thrown to the outer edge of the impeller and flows into the water pressure pipeline of the water pump through the flow channel of the volute pump casing. In some applications, the outlet flow rate needs to be adjusted, so a multi-stage centrifugal pump that adjusts the outlet flow rate will be used.

[0003] After searching, for example, Chinese patent document CN215706797U discloses an anti-theft device for lithium batteries of electric vehicles. Through the anti-theft mechanism, after the battery is taken away, the spring will drive the receiving plate to reset upward, and the receiving plate will touch the pressure sensor. The power supply will transmit the electric energy to the pressure sensor. After the pressure sensor is pressurized, it will transmit the signal to the connector. The connector will then transmit the signal and the electric energy to the alarm. After receiving the signal, the alarm will sound an alarm. However, there are still the following defects:

[0004] When the above electric vehicle lithium battery anti-theft device is in use, if the thief carries away the device together, the internal anti-theft device will not be able to sound an alarm in time, there is no alarm structure to prevent the device from being stolen, and the moisture absorption device set up can easily return moisture to the inside of the device, affecting the battery. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-theft device for lithium batteries of electric vehicles to solve the problem that if the thief carries away the device together with the device, the anti-theft device arranged inside cannot sound an alarm in time, there is no alarm structure to prevent the device from being stolen together with the device, and the moisture absorption device arranged therein is easy to be damp to the inside of the device, thus affecting the battery.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-theft device for lithium batteries of electric vehicles, comprising an anti-theft box, a box cover is arranged on the top of the anti-theft box, a dehumidification box is arranged between the bottom of the box cover and the anti-theft box, four groups of connecting seats with rectangular structures are fixed to the bottom of the anti-theft box, connecting bolts pass through the middle of the connecting seats, an alarm is installed on the top of the box cover, and a password lock is installed on one side of the alarm.

[0007] Preferably, an upper connecting frame with a rectangular structure is fixed in the middle of the bottom of the box cover, and four groups of first filter screens are arranged on the side of the upper connecting frame.

[0008] Preferably, four groups of second filter screens are arranged on the side of the dehumidification box, and the position distribution of the four groups of second filter screens corresponds to the position distribution of the four groups of first filter screens.

[0009] Preferably, four groups of filter material placement grooves are provided on the top of the dehumidification box, and the filter material placement grooves are arranged between the first filter screen and the second filter screen, and the bottom surface of the filter material placement grooves is a slope structure, and the height of one end of the filter material placement groove close to the first filter screen is greater than the height of one end of the filter material placement groove close to the second filter screen.

[0010] Preferably, a lower connecting frame is provided between the four groups of filter material placement grooves, the cross-sectional shape and size of the lower connecting frame are consistent with the cross-sectional shape and size of the upper connecting frame, and the upper connecting frame and the lower connecting frame are snap-connected, and two groups of fans are installed inside the lower connecting frame.

[0011] Preferably, a trigger tube with a tubular structure is provided at the connection between the connecting seat and the connecting bolt, a protective ring is provided at the bottom of the trigger tube, and a trigger ring is installed on one side of the protective ring, and the height of the trigger ring is greater than the height dimension of the protective ring.

[0012] Preferably, two groups of limit slide blocks are arranged on the side of the trigger tube, a limit slide groove is provided at the connection between the connecting seat and the limit slide block, a spring is connected to the bottom of the limit slide block, and the length of the spring is greater than the length of the limit slide groove.

[0013] Preferably, a pressure sensor is provided on the trigger ring, and the trigger ring is electrically connected to the alarm and the password lock.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By installing a password lock on the top of the anti-theft box, when the password lock cannot be unlocked, the connecting bolt is rotated and the device is disassembled. The trigger tube on the connecting seat will lose the restriction of the connecting bolt and be pushed upward by the spring inside the limiting slide groove, driving the trigger tube to move upward, causing the pressure on the trigger ring to change, triggering the alarm. Filter material can be placed inside the filter material placement groove. After absorbing a large amount of moisture, the overflowed moisture can also be discharged outward through the bottom to prevent moisture from reversely penetrating into the interior of the anti-theft box and affecting the internal battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the box cover of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the dehumidification box of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the connecting seat in the utility model;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the connecting seat in the utility model.

[0021] In the figure: 1. anti-theft box; 2. box cover; 201. upper connecting frame; 202. first filter; 3. dehumidification box; 301. second filter; 302. filter material placement slot; 303. lower connecting frame; 304. fan; 4. connecting bolts; 5. connecting seat; 501. trigger tube; 502. protective ring; 503. trigger ring; 504. limit slider; 505. limit slide groove; 506. spring; 6. alarm; 7. password lock. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] See also Figure 1-5 The utility model provides an anti-theft device for lithium batteries of electric vehicles, including an anti-theft box 1, a box cover 2, an upper connecting frame 201, a first filter screen 202, a dehumidification box 3, a second filter screen 301, a filter material placement slot 302, a lower connecting frame 303, a fan 304, a connecting bolt 4, a connecting seat 5, a trigger tube 501, a protective ring 502, a trigger ring 503, a limiting slider 504, a limiting slide slot 505, a spring 506, an alarm 6, and a password lock 7. The top of the anti-theft box 1 is provided with a box cover 2, and a rectangular upper connecting frame 201 is fixed in the middle of the bottom of the box cover 2. Four groups of first filter screens 202 are provided on the side of the upper connecting frame 201. The first filter screen 202 can cooperate with the second filter screen 301, and the filter material for dehumidification can be placed inside the filter material placement slot 302, so that the airflow entering therein can be dehumidified and filtered. A dehumidification box 3 is arranged between the bottom of the box cover 2 and the anti-theft box 1, and four groups of second filter screens 301 are arranged on the side of the dehumidification box 3, and the position distribution of the four groups of second filter screens 301 corresponds to the position distribution of the four groups of first filter screens 202, and the airflow can be filtered by the second filter screen 301, and four groups of filter material placement grooves 302 are opened on the top of the dehumidification box 3, and the filter material placement grooves 302 are arranged between the first filter screen 202 and the second filter screen 301, and the bottom surface of the filter material placement grooves 302 is a slope structure, and the height of one end of the filter material placement groove 302 close to the first filter screen 202 is greater than the height of the other end of the filter material placement groove 302 close to the second filter screen 301. The slope at the bottom of the filter material placement groove 302 can discharge the absorbed moisture to the outside to prevent the filter material from absorbing excessive moisture and then flowing back to the inside of the device, causing the batteries stored inside to come into contact with water.

[0024] A lower connecting frame 303 is arranged between the four groups of filter material placement grooves 302. The cross-sectional shape and size of the lower connecting frame 303 are consistent with the cross-sectional shape and size of the upper connecting frame 201, and the upper connecting frame 201 and the lower connecting frame 303 are snap-fitted and connected. Two groups of fans 304 are installed inside the lower connecting frame 303 to facilitate the disassembly of the box cover 2 and then reconnection after replacing the internal filter element.

[0025] Four groups of rectangular connecting seats 5 are fixed to the bottom of the anti-theft box 1. A trigger tube 501 of a tubular structure is provided at the connection between the connecting seat 5 and the connecting bolt 4. A protective ring 502 is provided at the bottom of the trigger tube 501, and a trigger ring 503 is installed on one side of the protective ring 502. The height of the trigger ring 503 is greater than the height of the protective ring 502, so that the trigger ring 503 can be prevented from being touched by the external connecting bolt 4, thereby improving the accuracy of the trigger ring 503. Two groups of limiting sliders 504 are provided on the side of the trigger tube 501. A limiting slide groove 505 is provided at the connection between the connecting seat 5 and the limiting slide groove 504. A spring 506 is connected to the bottom of the limiting slide groove 504, and the length of the spring 506 is greater than the length of the limiting slide groove 505. The limit slider 504 is set to prevent the trigger tube 501 from separating from the connecting seat 5. Through the extension of the internal spring 506, after the connecting bolt 4 is pulled out, the trigger tube 501 will lose its restriction and be lifted upward by the spring 506, so that the bottom surface of the trigger tube 501 is separated from the trigger ring 503. When the device has not unlocked the password lock 7, the alarm 6 will be triggered to alarm. There is a pressure sensor on the trigger ring 503, and the trigger ring 503 is electrically connected to the alarm 6 and the password lock 7. In this way, whether the device is disassembled normally can be judged by whether the trigger ring 503 is squeezed, which plays an anti-theft role. The connecting bolt 4 runs through the middle of the connecting seat 5, the alarm 6 is installed on the top of the box cover 2, and the password lock 7 is installed on one side of the alarm 6.

[0026] When the embodiment of the present application is in use: by installing a password lock 7 on the top of the anti-theft box 1, the password lock 7 needs to be unlocked when the device is disassembled. When the password lock 7 cannot be unlocked, if the connecting bolt 4 is rotated at this time to remove the connecting bolt 4, the trigger tube 501 on the connecting seat 5 will lose the restriction of the connecting bolt 4 and be pushed upward by the spring 506 inside the limiting slide groove 505, pushing the limiting slide block 504 to move upward, thereby driving the trigger tube 501 to move upward, and the bottom leaves the trigger ring 503. The pressure change on the trigger ring 503 will trigger the alarm 6 to alarm. If the password lock 7 is unlocked when the connecting bolt 4 is removed, the alarm 6 can be avoided from being triggered, thereby playing an alarm role. In addition, the dehumidification box 3 with a fan 304 on the top is provided with a filter material placement groove 302 with an inclined structure at the bottom. 02 A filter material can be placed inside. After absorbing a large amount of moisture, the overflowing moisture can also be discharged outward through the bottom to prevent moisture from reversely penetrating into the interior of the anti-theft box 1 and affecting the internal battery. In this way, an anti-theft device for an electric vehicle lithium battery is completed. It should be noted that the utility model is an anti-theft device for an electric vehicle lithium battery. The components are all universal standard parts or components known to technical personnel in this field. The structure and principle can be known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and compatible monitoring computers and power supplies, are connected through wires. The specific connection means should refer to the above-mentioned working principle. The electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in the field.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-theft device for lithium batteries of electric vehicles, comprising an anti-theft box (1), characterized in that: The top of the anti-theft box (1) is provided with a box cover (2), a dehumidification box (3) is provided between the bottom of the box cover (2) and the anti-theft box (1), four groups of connecting seats (5) of rectangular structure are fixed to the bottom of the anti-theft box (1), a connecting bolt (4) passes through the middle of the connecting seat (5), an alarm (6) is installed on the top of the box cover (2), and a password lock (7) is installed on one side of the alarm (6).

2. The anti-theft device for lithium batteries of electric vehicles according to claim 1, characterized in that: An upper connecting frame (201) with a rectangular structure is fixed in the middle of the bottom of the box cover (2), and four groups of first filter screens (202) are arranged on the side of the upper connecting frame (201).

3. The anti-theft device for lithium batteries of electric vehicles according to claim 1, characterized in that: Four groups of second filter screens (301) are arranged on the side of the dehumidification box (3), and the position distribution of the four groups of second filter screens (301) corresponds to the position distribution of the four groups of first filter screens (202).

4. The anti-theft device for lithium batteries of electric vehicles according to claim 1, characterized in that: The top of the dehumidification box (3) is provided with four groups of filter material placement grooves (302), the filter material placement grooves (302) are arranged between the first filter screen (202) and the second filter screen (301), and the bottom surface of the filter material placement grooves (302) is an inclined structure, and the height of one end of the filter material placement groove (302) close to the first filter screen (202) is greater than the height of one end of the filter material placement groove (302) close to the second filter screen (301).

5. The anti-theft device for lithium batteries of electric vehicles according to claim 4, characterized in that: A lower connecting frame (303) is provided between the four groups of filter material placement grooves (302); the cross-sectional shape and size of the lower connecting frame (303) are consistent with the cross-sectional shape and size of the upper connecting frame (201); the upper connecting frame (201) and the lower connecting frame (303) are snap-fitted and connected; two groups of fans (304) are installed inside the lower connecting frame (303).

6. The anti-theft device for lithium batteries of electric vehicles according to claim 1, characterized in that: A trigger tube (501) of a tubular structure is provided at the connection point between the connection seat (5) and the connection bolt (4); a protective ring (502) is provided at the bottom of the trigger tube (501); a trigger ring (503) is installed on one side of the protective ring (502); and the height of the trigger ring (503) is greater than the height of the protective ring (502).

7. An anti-theft device for lithium batteries of electric vehicles according to claim 6, characterized in that: Two groups of limiting slide blocks (504) are arranged on the side of the trigger tube (501), and a limiting slide groove (505) is provided at the connection between the connecting seat (5) and the limiting slide block (504). A spring (506) is connected to the bottom of the limiting slide block (504), and the length of the spring (506) is greater than the length of the limiting slide groove (505).

8. The anti-theft device for lithium batteries of electric vehicles according to claim 6, characterized in that: The trigger ring (503) is provided with a pressure sensor, and the trigger ring (503) is electrically connected to the alarm (6) and the password lock (7).

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