An explosion-proof wireless communication terminal battery box

Abstract

The present invention relates to an explosion-proof wireless communication terminal battery box, comprising a bottom cover and a top cover, wherein a mounting block is fixedly installed at the open end of the top cover, a mounting groove for the mounting block to pass through is provided in the bottom cover, a cavity is provided in the bottom cover, a lithium battery is fixedly installed in the cavity, a positive and negative output shaft is provided on the lithium battery, a short-circuit cutting mechanism for cutting off the power output of the positive and negative output shafts is provided on the positive and negative output shafts, a driving end of the short-circuit cutting mechanism is connected to a control end of a short-circuit control module, and an information receiving end of the short-circuit control module is connected to an information output end of a short-circuit detection module. The explosion-proof wireless communication terminal battery box is convenient for timely cutting off the power supply of the positive and negative output shafts when a short circuit occurs, and can effectively avoid high temperature caused by a long-term short circuit, thereby preventing damage to the internal diaphragm of the lithium battery, greatly reducing the probability of explosion, and facilitating rapid removal of air in the cavity, reducing the possibility of battery combustion.

Description

Technical Field

[0001] The invention belongs to the technical field of communication equipment, and in particular relates to an explosion-proof wireless communication terminal battery box. Background Art

[0002] Wireless communication terminals require batteries to ensure the normal use of wireless terminals. During use, batteries are prone to short circuits, which are caused by poor insulation design inside the battery pack. When a short circuit occurs outside the battery cell and the electronic components fail to cut off the circuit, high heat will be generated inside the battery cell, causing partial evaporation of the electrolyte, which will cause the battery casing to swell. When the temperature inside the battery is as high as 135 degrees Celsius, the pore sealing rate is too poor, or the diaphragm paper whose pores are not sealed at all will cause the battery temperature to continue to rise, more electrolyte will evaporate, and finally the battery casing will rupture, and even the battery temperature will rise, causing the material to burn and explode.

[0003] Internal short circuits are mainly caused by burrs of copper and aluminum foil piercing the diaphragm, or dendrites of lithium atoms piercing the diaphragm. Explosions caused by internal short circuits are mainly caused by overcharging, because needle-shaped lithium metal crystals are everywhere on the rear plate after overcharging, puncture points are everywhere, and micro short circuits occur everywhere. Therefore, the temperature of the battery will gradually increase, and eventually the high temperature will bring electrolyte gas. In this case, whether the temperature is too high to make the material burn and explode, or the shell breaks first, causing air to enter, and the lithium metal undergoes severe oxidation, it is the end point of the explosion.

[0004] However, it is difficult for common communication terminal battery boxes to cut off the power supply in time to avoid short circuit damage to the inside of the battery, and it is difficult to quickly prevent oxygen from burning and damaging the battery. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problems and to provide an explosion-proof wireless communication terminal battery box which can promptly cut off the power supply of the positive and negative output shafts when a short circuit occurs, effectively avoid high temperature caused by a long-term short circuit, and thus prevent damage to the internal diaphragm of the lithium battery, greatly reduce the probability of explosion, facilitate rapid removal of air in the cavity, and reduce the possibility of battery combustion.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A battery box for an explosion-proof wireless communication terminal comprises a bottom cover and a top cover, wherein a mounting block is fixedly mounted on an open end of the top cover, a mounting groove for the mounting block to pass through is provided in the bottom cover, a cavity is provided in the bottom cover, a lithium battery is fixedly mounted in the cavity, a positive and negative output shafts are provided on the lithium battery, a short-circuit cutting mechanism for cutting off the power output of the positive and negative output shafts is provided on the positive and negative output shafts, a driving end of the short-circuit cutting mechanism is connected to a control end of a short-circuit control module, and an information receiving end of the short-circuit control module is connected to an information output end of a short-circuit detection module.

[0008] As a further optimization scheme of the present invention, the cross-section of the bottom cover and the top cover is a honeycomb structure, and a sealing gasket is provided on the inner side wall of the installation groove; its design purpose is: high stability, and the bottom cover and the top cover are installed by the alignment of the mounting block and the mounting groove, and under the action of the sealing gasket, the sealing of the internal cavity after the bottom cover and the top cover are installed is ensured.

[0009] As a further optimization scheme of the present invention, the short-circuit cutting mechanism includes an accommodation box arranged on the outside of the bottom cover, a driving motor is arranged in the accommodation box, the output end of the driving motor is connected to the control turntable, the control turntable is provided with a fitting groove, the fitting groove forms an electrical connection end and an electrical shielding end, a metal gasket is arranged in the electrical connection end, and the outer sides of the electrical connection end and the electrical shielding end are respectively provided with a first arc-shaped block and a second arc-shaped block; its design purpose is: when a short circuit occurs, under the action of the short-circuit control module, the driving power supply of the short-circuit cutting mechanism is controlled, and then the positive and negative output shaft power supplies are cut off in time, which can effectively avoid the high temperature generated by long-term short circuit, thereby damaging the internal diaphragm of the lithium battery, thereby greatly reducing the probability of lithium battery explosion.

[0010] As a further optimization scheme of the present invention, one side of the metal gasket is connected to the positive and negative output shafts, and the other side of the metal gasket is provided with an electrical output shaft; its design purpose is to facilitate the electrical connection between the metal gasket, the positive and negative output shafts and the electrical output shaft.

[0011] As a further optimization scheme of the present invention, the central axes of the electrical output shaft and the positive and negative output shafts are on the same horizontal plane, and the placement box and the bottom cover are detachable; the design purpose is to facilitate the maintenance of the placement box and the bottom cover.

[0012] As a further optimization solution of the present invention, the material of the control turntable is insulating material; its design purpose is to facilitate the isolation of the positive and negative output shafts and the electrical output shaft.

[0013] As a further optimization scheme of the present invention, the inner ends of the first arc stopper and the second arc stopper are arc-shaped structures, and the material of the first arc stopper and the second arc stopper is rubber; the design purpose is that the first arc stopper and the second arc stopper are used to limit and reset the positive and negative output shafts and the electrical output shaft.

[0014] As a further optimization scheme of the present invention, an inert gas filling mechanism is also provided on the outside of the lithium battery, and the inert gas filling mechanism includes an inert gas storage box and a contact switch arranged in the electrical shielding end, and the control end of the contact switch is provided with a valve for controlling the gas outlet end of the inert gas storage box, and the outlet end of the inert gas storage box is provided with a gas distribution pipeline, and the end of the gas distribution pipeline is provided with an injection block, and the injection block is provided with an injection port.

[0015] As a further optimization scheme of the present invention, the jet block and the gas distribution pipeline 1003 are arranged in a one-to-one correspondence, and the jet port is in a conical structure at the gas outlet end in the jet block; its design purpose is: the inert gas is filled in the cavity along the jet port, which is convenient for quickly removing the air in the cavity and protecting the lithium battery 5.

[0016] As a further optimization solution of the present invention, an exhaust port is provided on the top cover; the design purpose of the exhaust port is to allow the inert gas to squeeze the oxygen in the cavity to the exhaust port and overflow to the outside of the top cover 2.

[0017] The beneficial effects of the present invention are that when a short circuit occurs, it is convenient to cut off the power supply of the positive and negative output shafts in time, which can effectively avoid the high temperature generated by a long-term short circuit, thereby preventing damage to the internal diaphragm of the lithium battery, greatly reducing the probability of explosion, facilitating the rapid removal of air in the cavity, and reducing the possibility of battery combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main visual axis side structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the main visual axis structure of the bottom cover and the top cover of the present invention when they are disassembled;

[0020] Figure 3 It is a schematic diagram of a top cross-sectional structure of the present invention;

[0021] Figure 4 The present invention Figure 3 The enlarged structural diagram at A in the middle;

[0022] Figure 5 The present invention Figure 3 The enlarged structural diagram at B in the middle;

[0023] Figure 6 It is a schematic diagram of the main structure of the control turntable of the present invention.

[0024] In the figure: 1. bottom cover; 2. top cover; 3. mounting block; 4. mounting slot; 5. lithium battery; 6. positive and negative output shafts; 7. short-circuit cutting mechanism; 701. placement box; 702. drive motor; 703. control turntable; 704. fitting slot; 705. metal gasket; 706. first arc-shaped block; 707. second arc-shaped block; 708. electrical output shaft; 8. short-circuit control module; 9. short-circuit detection module; 10. inert gas filling mechanism; 1001. contact switch; 1002. valve; 1003. gas distribution pipeline; 1004. jet block; 1005. jet outlet. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0026] Example 1

[0027] like Figure 1-2 As shown, an explosion-proof wireless communication terminal battery box includes a bottom cover 1 and a top cover 2. A mounting block 3 is fixedly installed at the open end of the top cover 2. A mounting groove 4 for the mounting block 3 to pass through is opened in the bottom cover 1. As shown in the figure, the cross-section of the bottom cover 1 and the top cover 2 is a honeycomb structure. A sealing gasket is provided on the inner wall of the mounting groove 4, which has high stability. The bottom cover 1 and the top cover 2 are installed by aligning the mounting block 3 with the mounting groove 4. Under the action of the sealing gasket, the sealing of the internal cavity after the bottom cover 1 and the top cover 2 are installed is guaranteed, which can effectively prevent outside air from entering the bottom cover 1 and the top cover 2, greatly avoiding the influence of oxygen on the battery.

[0028] like Figure 2 As shown, a cavity is provided in the bottom cover 1, and a lithium battery 5 is fixedly installed in the cavity. A positive and negative output shaft 6 is provided on the lithium battery 5, and a short-circuit cutting mechanism 7 for cutting off the power output of the positive and negative output shaft 6 is provided on the positive and negative output shaft 6. The driving end of the short-circuit cutting mechanism 7 is connected to the control end of the short-circuit control module 8, and the information receiving end of the short-circuit control module 8 is connected to the information output end of the short-circuit detection module 9. A multimeter for detecting circuit short circuit is provided in the short-circuit detection module 9. Under the action of the multimeter, the short-circuit information is conveniently detected at the first time, and the short-circuit information is transmitted to the short-circuit control module 8. Under the action of the short-circuit control module 8, the driving power of the short-circuit cutting mechanism 7 is controlled, and then the power of the positive and negative output shaft 6 is cut off in time, which can effectively avoid the high temperature generated by long-term short circuit, thereby damaging the internal diaphragm of the lithium battery 5, thereby greatly reducing the explosion probability of the lithium battery 5.

[0029] like Figure 3 As shown, the short-circuit cutting mechanism 7 includes a placement box 701 arranged outside the bottom cover 1, a driving motor 702 is arranged in the placement box 701, the output end of the driving motor 702 is connected to a control dial 703, a fitting groove 704 is arranged on the control dial 703, the fitting groove 704 forms an electrical connection end and an electrical shielding end, a metal gasket 705 is arranged in the electrical connection end, a first arc-shaped stopper 706 and a second arc-shaped stopper 707 are respectively arranged on the outer sides of the electrical connection end and the electrical shielding end, one side of the metal gasket 705 is connected to the positive and negative output shafts 6, and the other side of the metal gasket 705 is provided with an electrical output shaft 708;

[0030] like Figure 4-6 As shown, the central axis of the positive and negative output shafts 6 and the electrical output shaft 708 are on the same horizontal plane, and the placement box 701 and the bottom cover 1 are detachably arranged. When a short circuit occurs inside the communication device, under the action of the short circuit control module 8, the driving power of the driving motor 702 is controlled, and under the action of the driving motor 702, the control dial 703 is rotated clockwise, so that the positive and negative output shafts 6 and the electrical output shaft 708 are relatively slidably displaced inside the fitting groove 704, so that the positive and negative electrodes are The output shaft 6 and the electrical output shaft 708 are disconnected from the metal gasket 705. The material of the control dial 703 is an insulating material, which can effectively play an insulating role and facilitate quick power cut-off. The inner ends of the first arc-shaped stopper 706 and the second arc-shaped stopper 707 are arc-shaped structures, and the material of the first arc-shaped stopper 706 and the second arc-shaped stopper 707 is rubber. The first arc-shaped stopper 706 and the second arc-shaped stopper 707 are used to limit and reset the positive and negative output shafts 6 and the electrical output shaft 708;

[0031] like Figure 5 As shown, the lithium battery 5 is also provided with an inert gas filling mechanism 10 outside, the inert gas filling mechanism 10 includes an inert gas storage box and a contact switch 1001 arranged in the electrical shielding end, the control end of the contact switch 1001 is provided with a valve 1002 for controlling the gas outlet end of the inert gas storage box, the outlet end of the inert gas storage box is provided with a gas distribution pipeline 1003, the end of the gas distribution pipeline 1003 is provided with an injection block 1004, the injection block 1004 is provided with an injection port 1005, and the top cover 2 is provided with an exhaust port. During the rotation of the control dial 703, the reset positive and negative output shafts 6 contact the contact switch 1001, thereby opening the switch of the valve 1002, so that the inert gas storage box and the gas distribution pipeline 1003 are connected to each other, the jet block 1004 and the gas distribution pipeline 1003 are arranged in a one-to-one correspondence, and the jet port 1005 has a conical structure at the gas outlet end in the jet block 1004. The inert gas is filled in the cavity along the jet port 1005, which is convenient for quickly removing the air in the cavity and protecting the lithium battery 5.

[0032] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. An explosion-proof wireless communication terminal battery box, characterized in that: The invention comprises a bottom cover (1) and a top cover (2), wherein a mounting block (3) is fixedly mounted on the open end of the top cover (2), a mounting groove (4) for the mounting block (3) to pass through is provided in the bottom cover (1), a cavity is provided in the bottom cover (1), a lithium battery (5) is fixedly mounted in the cavity, a positive and negative electrode output shaft (6) is provided on the lithium battery (5), a short circuit cutting mechanism (7) for cutting off the power output of the positive and negative electrode output shaft (6) is provided on the positive and negative electrode output shaft (6), a driving end of the short circuit cutting mechanism (7) is connected to a control end of a short circuit control module (8), and an information receiving end of the short circuit control module (8) is connected to an information output end of a short circuit detection module (9); An inert gas filling mechanism (10) is also provided outside the lithium battery (5), the inert gas filling mechanism (10) comprising an inert gas storage box and a contact switch (1001) provided in the electrical shielding end, the control end of the contact switch (1001) is provided with a valve (1002) for controlling the gas outlet of the inert gas storage box, the outlet of the inert gas storage box is provided with a gas distribution pipeline (1003), the end of the gas distribution pipeline (1003) is provided with an injection block (1004), and the injection block (1004) is provided with an injection port (1005); The jet block (1004) and the gas distribution pipeline 1003 are arranged in a one-to-one correspondence, and the gas outlet end of the jet port (1005) in the jet block (1004) is in a conical structure; The short-circuit disconnecting mechanism (7) comprises a placement box (701) arranged outside the bottom cover (1), wherein a driving motor (702) is arranged inside the placement box (701), wherein the output end of the driving motor (702) is connected to a control dial (703), wherein a fitting groove (704) is arranged on the control dial (703), wherein the fitting groove (704) forms an electrical connection end and an electrical shielding end, wherein a metal gasket (705) is arranged inside the electrical connection end, and wherein a first arc-shaped stopper (706) and a second arc-shaped stopper (707) are respectively arranged on the outer sides of the electrical connection end and the electrical shielding end.

2. The explosion-proof wireless communication terminal battery box according to claim 1, characterized in that: The cross-sections of the bottom cover (1) and the top cover (2) are honeycomb structures, and a sealing gasket is provided on the inner side wall of the installation groove (4).

3. The explosion-proof wireless communication terminal battery box according to claim 1, characterized in that: One side of the metal gasket (705) is connected to the positive and negative output shafts (6), and the other side of the metal gasket (705) is provided with an electrical output shaft (708).

4. The explosion-proof wireless communication terminal battery box according to claim 3, characterized in that: The electrical output shaft (708) and the central axes of the positive and negative output shafts (6) are located on the same horizontal plane, and the placement box (701) and the bottom cover (1) are detachably arranged.

5. The explosion-proof wireless communication terminal battery box according to claim 1, characterized in that: The control turntable (703) is made of insulating material.

6. The explosion-proof wireless communication terminal battery box according to claim 1, characterized in that: The inner ends of the first arc-shaped stopper (706) and the second arc-shaped stopper (707) are arc-shaped structures, and the material of the first arc-shaped stopper (706) and the second arc-shaped stopper (707) is rubber.

7. The explosion-proof wireless communication terminal battery box according to claim 1, characterized in that: The top cover (2) is provided with an exhaust port.

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