CN215398195U

CN215398195U - Anti-theft battery pack and battery pack anti-theft system

Info

Publication number: CN215398195U
Application number: CN202122893102.9U
Authority: CN
Inventors: 王栋; 秦延昌; 刘绍亮
Original assignee: Shandong Qinlu Energy Technology Co ltd
Current assignee: Shandong Qinlu Energy Technology Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-01-04
Anticipated expiration: 2031-11-24

Abstract

The application relates to an anti-theft battery pack and a battery pack anti-theft system, the anti-theft battery pack comprises a battery box and a plurality of lithium batteries arranged in the battery box, a handle is arranged on the battery box, a lockset is arranged on the handle, and the lockset is connected with a hanging lug arranged on an electric vehicle. The battery pack anti-theft system comprises an alarm device and an anti-theft battery pack, wherein the alarm device comprises a battery box sensing assembly, a lifting handle sensing assembly, a control unit and an alarm. This application has the effect that reduces the risk that removable battery case was stolen.

Description

Anti-theft battery pack and battery pack anti-theft system

Technical Field

The application relates to the field of battery use safety, in particular to an anti-theft battery pack and an anti-theft system of the battery pack.

Background

With the progress of society and the development of science and technology, more and more people realize the necessity of green environmental protection, and the electric vehicle gradually becomes a vehicle for people to travel in short distance. However, the phenomenon of stealing the battery of the electric vehicle sometimes occurs, so the electric vehicle with the detachable battery appears in the market at present. When the vehicle owner arrives at the destination, the battery box with the battery can be conveniently and directly lifted down and placed in a relatively safe place such as an office or a home.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: although the battery can be dismantled to improve battery security, still some people can often forget to take away the battery case, has increased the risk that the battery was stolen on the contrary.

Disclosure of Invention

In order to reduce the risk of stealing the detachable battery box, the application provides an anti-theft battery pack and an anti-theft system.

On one hand, the anti-theft battery pack provided by the application adopts the following technical scheme:

the utility model provides an anti-theft battery pack, includes the battery case and installs a plurality of lithium cells in the battery case, be provided with the handle on the battery case, install the tool to lock on the handle, the tool to lock is connected with the hangers that sets up on the electric motor car.

Through adopting above-mentioned technical scheme, utilize the tool to lock with handle and hangers locking, can effectively reduce the risk that the battery case was stolen.

On the other hand, the battery pack anti-theft system provided by the application adopts the following technical scheme:

a battery pack anti-theft system comprises an alarm device and the anti-theft battery pack, wherein an insulating part is arranged on a handle; the alarm device includes:

the battery box induction assembly is arranged at the bottom of a mounting groove of the electric vehicle for mounting the battery pack, an extension groove is formed in the bottom of the mounting groove in an extending mode, and comprises first conducting strips arranged on two opposite side walls of the extension groove, conducting posts in sliding connection with the two side walls of the extension groove, provided with the first conducting strips, and insulating elastic pieces arranged between the conducting posts and the bottom of the extension groove; the insulating elastic piece naturally pushes the conductive column out of the notch of the extension slot, and the conductive column is not communicated with the two first conductive sheets;

the number of the hanging lugs is 2, the handle sensing assembly comprises conductive elastic sheets arranged on the inner sides of the hanging lugs, an insulating part arranged on the handle can be inserted between the conductive elastic sheets, and the two conductive elastic sheets are mutually abutted in a natural state;

a control unit;

the alarm is electrically connected with the control unit;

the first conducting strip and the conducting elastic sheet are both connected with the control unit through wires;

when the anti-theft battery pack is separated from the mounting groove and the insulating part arranged on the lifting handle is inserted between the conductive elastic sheets, the alarm gives an alarm.

By adopting the technical scheme, when the battery pack is arranged in the mounting groove, the conductive posts are pressed in the extension groove under the pressure of the battery pack, the conductive posts conduct the first conductive sheets on the two sides at the moment, and if the battery pack is separated from the mounting groove, the conductive posts do not conduct the first conductive sheets on the two sides, so that whether signals input into the control unit by the battery pack are different in the mounting groove is judged; similarly, when the insulating part of the handle is inserted between the two conductive elastic sheets, the two conductive elastic sheets are not conducted, if the lock is unlocked, the handle is separated from the two conductive elastic sheets, the two conductive elastic sheets are conducted, and therefore, whether the handle is inserted between the two conductive elastic sheets or not is different from a signal input to the control unit; when the anti-theft battery pack is separated from the mounting groove and the insulating part arranged on the handle is inserted between the conductive elastic sheets, the control unit receives the corresponding signal and then outputs a signal to the alarm, so that the alarm gives an alarm to remind the battery pack of abnormality.

Preferably, the conductive column comprises a column body connected with the extension groove in a sliding mode and a conductive layer arranged at the lower end of the column body, the thickness of the conductive layer is consistent with that of the first conductive sheet in the extension groove, and the height of the column body exceeding the extension groove is consistent with the distance from the bottom surface of the conductive layer to the lowest position of the first conductive sheet.

Through adopting above-mentioned technical scheme, when the group battery was placed in the mounting groove, first conducting strip and conducting layer can switch on and thickness is unanimous for the signal is more smooth and easy at transmission process.

Preferably, the control unit includes:

the battery box signal input module comprises a first switch component, and a first conducting strip is connected between a power supply and the input end of the first switch component in series;

the handle signal input module comprises a second switch component, and the conductive elastic sheet is connected between the power supply and the input end of the second switch component in series;

the output end of the first switch component and the output end of the second switch component are both connected with the input end of the logic gate circuit;

and the input end of the switch module is connected with the output end of the logic gate circuit, and the output end of the switch module is connected with the alarm.

By adopting the technical scheme, the first switch component is utilized to control whether the first conducting strip is conducted or not so as to control the signal input to the input end of the logic gate circuit; similarly, whether utilize the electrically conductive shell fragment of second switch module control to switch on the signal of control input logic gate circuit input, when the insulating part that sets up on theftproof group battery breaks away from mounting groove and the handle is pegged graft between electrically conductive shell fragment, the output signal control switch module of logic gate circuit output is opened and close to the control alarm sends the police dispatch newspaper.

Preferably, the first switch assembly includes:

and an NPN triode Q1, the base of which is connected with the first conducting strip, the collector of which is connected with the power supply, and the emitter of which is grounded and is also connected with the input end of the logic gate circuit.

By adopting the technical scheme, when the first conducting strip is conducted, the base electrode of the NPN triode Q1 receives a high level signal, the NPN triode Q1 is conducted, and the input end of the logic gate circuit connected with the first switch component receives the high level signal; otherwise, the input end of the logic gate circuit connected with the first switch component receives a low level signal.

Preferably, the second switch assembly includes:

and the base electrode of the NPN triode Q2 is connected with the conductive elastic sheet, the collector electrode of the NPN triode Q2 is connected with the power supply, and the emitter electrode of the NPN triode Q2 is grounded and is simultaneously connected with the input end of the logic gate circuit.

By adopting the technical scheme, when the conductive elastic sheet is conducted, the base electrode of the NPN triode Q2 receives a high level signal, the NPN triode Q2 is conducted, and the input end of the logic gate circuit connected with the second switch component receives the high level signal; otherwise, the input end of the logic gate circuit connected with the second switch component receives a low level signal.

Preferably, the logic gate circuit comprises a two-input nor gate circuit.

By adopting the technical scheme, if and only when two input ends of the two-input NOR gate circuit receive low level signals, the output end outputs high level to drive the alarm to give out alarm. Namely, when the anti-theft battery pack is separated from the mounting groove and the insulating part arranged on the lifting handle is inserted between the conductive elastic sheets, the two-input NOR gate circuit outputs a high-level signal; and in other states, the two-input NOR gate circuit outputs a low level signal.

Preferably, the switch module includes:

and an NPN triode Q3, the base electrode of which is connected with the output end of the two-input NOR gate circuit, the collector electrode of which is connected with the power supply, and the emitter electrode of which is connected with the alarm and then grounded.

By adopting the technical scheme, when the output end of the two-input NOR gate circuit outputs a high level signal, the base electrode of the NPN triode Q3 receives the high level signal, the NPN triode Q3 is conducted, and the alarm receives the high level signal and gives an alarm; otherwise, the alarm does not work.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the handle and the hanging lug are locked by the lockset, so that the risk of stealing the battery box can be effectively reduced;

2. through the setting of alarm, after the theftproof group battery was stolen, because there is the tool to lock on the handle, the handle still stays the normal position, and the alarm sends out the police dispatch newspaper and reminds that the group battery is stolen this moment.

Drawings

Fig. 1 is a simplified illustration of a battery pack and its mounting structure.

Fig. 2 is a basic circuit schematic of the control unit.

Description of reference numerals: 100. an anti-theft battery pack; 110. a battery case; 111. a handle; 112. an insulating section; 120. a lithium battery; 200. an electric vehicle; 210. mounting grooves; 211. an extension groove; 220. hanging a lug; 230. a battery case sensing assembly; 231. a first conductive sheet; 232. a conductive post; 2321. a cylinder; 2322. a conductive layer; 233. an insulating elastic member; 240. a handle sensing assembly; 241. a conductive spring plate; 300. a control unit; 311. a first switch assembly; 321. a second switch assembly; 330. a logic gate circuit; 340. a switch module; 400. an alarm.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

Based on the fact that the existing detachable battery has a great risk of being stolen, the embodiment of the application discloses an anti-theft battery pack.

Referring to fig. 1, an anti-theft battery pack 100 includes a battery case 110 and a plurality of lithium batteries 120 mounted in the battery case 110, and a handle 111 is mounted on the battery case 110. The handle 111 can be rotatably connected with the battery box 110 through a pin shaft at two ends. The handle 111 is provided with a lock which can be a combination padlock or a key padlock. The hanging lug 220 is installed on the electric vehicle 200, the hanging lug 220 and the lifting handle 111 are locked through the lockset, and the risk that the battery box 110 is stolen is effectively reduced.

The electric vehicle 200 is reserved with a mounting groove 210 for mounting the anti-theft battery pack 100, and the battery box 110 with the lithium battery 120 is placed in the mounting groove 210. The hanging lug 220 is integrally injection-molded or screwed on the electric vehicle 200 and is positioned at one side of the mounting groove 210, when the battery box 110 is placed in the mounting groove 210, the handle 111 is rotated to enable the handle 111 to be close to the hanging lug 220, and then the handle 111 and the hanging lug 220 are locked by a lock. It should be noted that 1 or 2 hangers 220 can be adopted, and a connecting hole is formed in each hanger 220 for connecting a lock. Preferably, 2 hangers 220 are adopted in the present embodiment, and are arranged in parallel.

In order to further prevent that the group battery is stolen, this application still discloses a group battery anti-theft system. The battery pack antitheft system includes the above-described antitheft battery pack 100 and an alarm device. The alarm device includes a battery case sensing unit 230, a handle sensing unit 240, a control unit 300, and an alarm 400.

The battery case sensing member 230 is disposed at the bottom of the mounting groove 210. The slot bottom of the mounting slot 210 extends to form an extending slot 211, the two opposite side walls of the extending slot 211 are provided with first conducting strips 231, and the extending slot 211 is slidably connected with a conducting post 232. The conductive posts 232 are slidably connected to both sidewalls provided with the first conductive sheet 231, and preferably, the cross-sectional shape of the conductive posts 232 is identical to the cross-sectional shape of the extension grooves 211. An insulating elastic member 233 is disposed between the groove bottom of the extension groove 211 and the conductive post 232, so that the conductive post 232 has a telescopic space in the extension groove 211 and can be restored to the original shape. The insulating elastic member 233 may employ an insulating elastic rubber block or an insulating spring. When the insulating elastic member 233 is in a natural state, i.e., the conductive post 232 is not under pressure, one end of the conductive post 232 exceeds the opening of the extending slot 211, and at this time, the conductive post 232 does not connect the two first conductive pieces 231.

Specifically, the conductive pillar 232 includes a pillar 2321 slidably connected to the extension groove 211, and a conductive layer 2322 is disposed at a lower end of the pillar 2321. The thickness of the conductive layer 2322 is the same as the thickness of the first conductive plate 231 in the extension slot 211, the height of the pillar 2321 exceeding the notch of the extension slot 211 is the same as the distance from the bottom surface of the conductive layer 2322 to the lowest position of the first conductive plate 231, and the height of the pillar 2321 exceeding the notch of the extension slot 211 is the same as the distance from the bottom surface of the conductive layer 2322 to the lowest position of the first conductive plate 231. That is, when the battery case 110 is mounted in the mounting groove 210, the cylinder 2321 is pressed by the battery case 110 to move toward the bottom of the extension groove 211, and the cylinder 2321 is completely pressed into the extension groove 211, at which time the conductive layer 2322 conducts the first conductive sheets 231 on both sides.

The handle sensing assembly 240 comprises a conductive elastic sheet 241 arranged on the inner side of the hanging lug 220, the insulating part 112 is arranged on the handle 111, when the lockset is used, the insulating part 112 of the handle 111 is embedded into the middle of 2 hanging lugs 220, and then the lockset penetrates through the connecting hole of the hanging lug 220, so that the handle 111 and the hanging lug 220 are locked. It should be noted that, when the handle 111 is not embedded in the middle of the hanging lug 220, the conductive elastic pieces 241 on the two sides are abutted to each other and conducted.

It should be noted that the first conductive sheet 231 and the conductive elastic sheet 241 are both connected to the control unit 300 through wires, and the alarm 400 is electrically connected to the control unit 300 through wires. When the first conductive sheets 231 on the two sides are turned on or off and the conductive elastic sheets 241 on the two sides are turned on or off, the control unit 300 can receive different signals, and the processed and output signals control the alarm 400 to send an alarm.

Referring to fig. 2, the control unit 300 of the present application includes a battery box signal input module, a handle signal input module, a logic gate circuit 330, and a switch module 340. The battery box signal input module includes a first switch element 311, and a first conductive sheet 231 is connected in series between the power supply and the input terminal of the first switch element 311. The first switch element 311 comprises an NPN transistor Q1, wherein the base of the NPN transistor Q1 is connected to the first conductive pad 231 on one side, the collector is connected to the power supply, and the emitter is grounded and simultaneously connected to the input of the logic gate circuit 330.

The handle signal input module includes a second switch element 321, and the conductive elastic piece 241 is connected in series between the power source and the input end of the second switch element 321. The second switch assembly 321 includes an NPN transistor Q2, wherein a base of the NPN transistor Q2 is connected to the conductive strip 241, a collector thereof is connected to the power supply, and an emitter thereof is grounded and simultaneously connected to the input terminal of the logic gate circuit 330.

The logic gate circuit 330 includes a two-input nor circuit, the emitter of the NPN transistor Q1 and the emitter of the NPN transistor Q2 are respectively connected to two input terminals of the two-input nor circuit, and the output terminal of the two-input nor circuit is connected to the switching module 340. In this embodiment, the switch module 340 includes an NPN transistor Q3, a base of the NPN transistor Q3 is connected to the output end of the two-input nor gate, a collector is connected to the power supply, and an emitter is connected to the ground after being connected to the alarm 400.

In this embodiment, the alarm 400 may be an audible and visual alarm or a buzzer.

The alarm principle of the embodiment is as follows:

when the battery pack is stolen, the handle 111 is locked in the hanging lug 220 by the lock, so that the battery pack can be stolen by directly removing the handle 111. If the conductive post 232 is not pressed by the battery pack, the first conductive pieces 231 on the two sides are disconnected, the circuit corresponding to the battery box sensing assembly 230 is not conducted, and the base of the NPN transistor Q1 does not receive a high level, so the NPN transistor Q1 is not conducted. At this time, the handle 111 is also embedded in the middle of the conductive elastic sheet 241, the conductive elastic sheets 241 on both sides are disconnected, the circuit where the NPN transistor Q2 is located is not switched on, and the base of the NPN transistor Q2 does not receive a high level, so the NPN transistor Q2 is not switched on. Therefore, both input ends of the two-input NOR gate NOR _1 receive the low level signal, and the output end outputs the high level signal, at this time, the base of the NPN triode Q3 receives the high level signal, the NPN triode Q3 is turned on, and the alarm 400 operates.

In a normal state, the battery box 110 is placed in the mounting groove 210, the first conductive sheets 231 on the two sides are conducted, the circuit corresponding to the battery box sensing assembly 230 is conducted, and the base of the NPN transistor Q1 receives a high level, so that the NPN transistor Q1 is conducted; the conductive shrapnel 241 embedded in the middle of the conductive shrapnel 241 is disconnected, the circuit where the NPN triode Q2 is located is not on, and the base of the NPN triode Q2 does not receive a high level, so the NPN triode Q2 is not turned on. Therefore, the two input ends of the two-input NOR gate NOR _1 respectively receive the high level signal and the low level signal, and the output end outputs the low level signal, at this time, the base of the NPN triode Q3 receives the low level signal, the NPN triode Q3 is not turned on, and the alarm 400 does not work.

Or, the battery box 110 is placed in the mounting groove 210, and the handle 111 is not embedded between the hanging lugs 220; or, the battery box 110 is not placed in the mounting groove 210, the handle 111 is not embedded between the hanging lugs 220, and the alarm 400 does not give an alarm.

In summary, if 1 represents a high level signal and 0 represents a low level signal, the truth table of the two-input NOR gate NOR _1 is as follows:

where a and B denote two input terminals of the two-input NOR gate NOR _1, respectively, and Y denotes an output terminal of the two-input NOR gate NOR _ 1. The alarm 400 gives an alarm if and only if the antitheft battery pack 100 is detached from the mounting groove 210 and the insulating part 112 of the handle 111 is embedded between the conductive elastic pieces 241.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An anti-theft battery pack, characterized in that: including battery case (110) and a plurality of lithium cell (120) of installing in battery case (110), be provided with handle (111) on battery case (110), install the tool to lock on handle (111), the tool to lock is connected with hangers (220) that set up on electric motor car (200).

2. A battery pack antitheft system, characterized in that: comprising an alarm device and a theft-proof battery pack (100) as claimed in claim 1, the handle (111) being provided with an insulating portion (112); the alarm device includes:

the battery box induction assembly (230) is arranged at the bottom of a mounting groove (210) of the electric vehicle (200) for mounting the battery pack, an extension groove (211) is formed in the bottom of the mounting groove (210) in an extending mode, the battery box induction assembly (230) comprises first conducting strips (231) arranged on two opposite side walls of the extension groove (211), conducting posts (232) in sliding connection with the two side walls of the extension groove (211) provided with the first conducting strips (231), and insulating elastic pieces (233) arranged between the conducting posts (232) and the bottom of the extension groove (211); the insulating elastic piece (233) pushes the conductive column (232) out of the notch of the extension groove (211) in a natural state, and the conductive column (232) is not communicated with the two first conductive sheets (231);

the lifting handle sensing assembly (240) comprises 2 hanging lugs (220), the lifting handle sensing assembly (240) comprises conductive elastic sheets (241) arranged on the inner sides of the hanging lugs (220), an insulating part (112) arranged on the lifting handle (111) can be inserted between the conductive elastic sheets (241), and the two conductive elastic sheets (241) are mutually abutted in a natural state;

a control unit (300);

the alarm (400) is electrically connected with the control unit (300);

the first conducting strip (231) and the conducting elastic sheet (241) are connected with the control unit (300) through electric wires;

when the anti-theft battery pack (100) is separated from the mounting groove (210) and the insulating part (112) arranged on the lifting handle (111) is inserted between the conductive elastic sheets (241), the alarm (400) gives an alarm.

3. The battery pack theft prevention system according to claim 2, characterized in that: the conductive post (232) comprises a post (2321) connected with the extension slot (211) in a sliding manner and a conductive layer (2322) arranged at the lower end of the post (2321), the thickness of the conductive layer (2322) is consistent with that of the first conductive sheet (231) in the extension slot (211), and the height of the opening of the post (2321) exceeding the extension slot (211) is consistent with the distance from the bottom surface of the conductive layer (2322) to the lowest position of the first conductive sheet (231).

4. The battery pack theft prevention system according to claim 2, characterized in that: the control unit (300) comprises:

the battery box signal input module comprises a first switch component (311), and a first conducting strip (231) is connected between a power supply and the input end of the first switch component (311) in series;

the handle signal input module comprises a second switch component (321), and the conductive elastic sheet (241) is connected between the power supply and the input end of the second switch component (321) in series;

the output end of the first switch component (311) and the output end of the second switch component (321) are both connected with the input end of the logic gate circuit (330);

and the input end of the switch module (340) is connected with the output end of the logic gate circuit (330), and the output end of the switch module is connected with the alarm (400).

5. The battery pack theft prevention system according to claim 4, wherein: the first switch assembly (311) comprises:

the NPN transistor Q1 has a base connected to the first conductive pad 231, a collector connected to the power supply, and an emitter connected to ground and also connected to the input of the logic gate circuit 330.

6. The battery pack theft prevention system according to claim 5, characterized in that: the second switch assembly (321) comprises:

and the base electrode of the NPN triode Q2 is connected with the conductive elastic sheet (241), the collector electrode is connected with the power supply, and the emitter electrode is grounded and is also connected with the input end of the logic gate circuit (330).

7. The battery pack theft prevention system according to claim 6, wherein: the logic gate circuit (330) comprises a two-input NOR gate circuit.

8. The battery pack theft prevention system according to claim 4, wherein: the switch module (340) comprises:

and an NPN triode Q3, the base electrode of which is connected with the output end of the two-input NOR gate circuit, the collector electrode of which is connected with the power supply, and the emitter electrode of which is connected with the alarm (400) and then grounded.