Explosion-proof charger

Abstract

The invention belongs to the technical field of chargers, and particularly relates to an explosion-proof charger which comprises an air guide barrel, the air guide barrel is rotatably mounted on one side of a charger shell, a first air opening, a second air opening and a third air opening are formed in the air guide barrel, and an exhaust fan and a damp clearing box are arranged on the charger shell and arranged in the charger shell. A fourth air opening is formed in the end, close to the air guide cylinder, of the damp removing box, second filter cloth is arranged at the bottom end of the damp removing box and used for removing damp of air entering the fourth air opening through activated carbon powder stored in the damp removing box, the air inlet cavity is arranged in the charger shell, and a fifth air opening is formed in the end, close to the air guide cylinder, of the air inlet cavity. One end of the air guide cylinder is provided with first filter cloth, the control assembly is arranged in the charger shell and used for controlling the air guide cylinder to rotate according to air humidity, through cooperative use of the structures, air entering the charger can be drier, and therefore the risks of fire and explosion are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of chargers, in particular to an explosion-proof charger. Background Art

[0002] A charger is a device that converts AC power into DC power, and is used to charge devices such as batteries. It usually consists of a shell, input terminal, output terminal, circuit board, etc. The circuit board is the core of the charger, responsible for converting the input AC power into DC power suitable for battery charging, and controlling parameters such as current and voltage during the charging process. It is widely used in various portable electronic devices such as mobile phones, tablets, laptops, digital cameras, electric walkers, etc. It is an important accessory for the normal operation and endurance of these devices. With the development of science and technology, chargers are also constantly evolving, and new technologies such as fast charging and wireless charging have emerged, making charging more convenient and efficient.

[0003] For example, the patent disclosed in CN212667144U discloses a heat dissipation type battery charger, including a shell, a heat dissipation structure fixed on the shell, the heat dissipation structure including a heat-conducting substrate, a plurality of heat sinks fixed on the bottom surface of the heat-conducting substrate, a first guide groove formed between two adjacent heat sinks in the front and rear, a second guide groove formed between two adjacent heat sinks in the left and right, and support feet fixed at the four corners of the bottom wall of the shell, fixed columns fixed at the top wall of the shell near the four corners, and a waterproof cover fixed on the outside of the shell, the waterproof cover and the fixed columns are fixedly connected by a fixed knob, and a charging line is fixed at the left end of the shell, and a power line is fixed at the right end of the shell. The utility model solves the problem of low heat dissipation efficiency of general battery chargers, easy damage to the charger after long-term use, and inability to effectively waterproof because sometimes charging is done outdoors on rainy days.

[0004] However, the above patent adopts a method of placing a waterproof shell on the outside of the charger to achieve its waterproof function. Although this packaging method can reduce the further intrusion of moisture, there may still be a certain degree of humidity inside the charger. In addition, the presence of the waterproof shell will restrict air circulation. If the electronic components inside the charger absorb moisture in the air, this moisture may cause the electronic components to short-circuit, resulting in overheating, smoking or even fire of the charger. Since the waterproof shell hinders air flow, the heat generated by the flame and combustion is difficult to dissipate, which will cause local temperature rise and pressure increase, which may cause the charger to explode.

[0005] To this end, the present invention provides an explosion-proof charger. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: an explosion-proof charger according to the present invention comprises a charger housing;

[0008] It also includes an air guide tube, which is rotatably mounted on one side of the charger housing, and is provided with a first air outlet, a second air outlet, and a third air outlet, and an exhaust fan is provided on the charger housing;

[0009] A dehumidification box is arranged inside the charger housing, a fourth air outlet is provided at one end of the dehumidification box close to the air guide tube, and a second filter cloth is provided at the bottom end of the dehumidification box for dehumidifying the air entering the fourth air outlet through the activated carbon powder stored inside;

[0010] The air inlet chamber is configured as an L-shaped chamber and is opened inside the charger housing. A fifth air outlet is opened at one end of the air inlet chamber close to the air guide tube, and a first filter cloth is arranged at the other end.

[0011] A control component is arranged inside the charger housing and is used to control the rotation of the air guide tube according to the air humidity;

[0012] Set standard air humidity;

[0013] When the air humidity is not lower than the standard air humidity: the air guide tube rotates to make the third air outlet correspond to the fourth air outlet;

[0014] When the air humidity is lower than the standard air humidity: the air guide tube rotates so that the second air outlet corresponds to the fifth air outlet.

[0015] The control component includes a humidity sensor and a drive motor. The drive motor is fixedly mounted on the charger housing. The output shaft of the drive motor is fixedly connected to one end of the air guide tube. The humidity sensor is arranged inside the air inlet chamber. The humidity sensor is used to control the drive motor to rotate in the corresponding direction according to the air humidity.

[0016] A conduction tube is arranged below the dehumidification box, and a hammer head for striking the second filter cloth is elastically installed inside the conduction tube.

[0017] The exhaust fan is coaxially mounted with a transmission rod, the outer wall of which is fixedly mounted with a first magnetic block, the bottom end of the hammer head is rotatably mounted with a connecting rod, the other end of the connecting rod is rotatably mounted with a second magnetic block, and the first magnetic block and the second magnetic block attract each other.

[0018] A winding roller is rotatably installed inside the dehumidification box, the second filter cloth is fixedly connected to the winding roller by a connecting rope, and an explosion-proof component for controlling the rotation of the winding roller is arranged below the air guide tube.

[0019] The explosion-proof component includes a smoke sensor, a coil spring, a fuse and a fuse capacitor for blowing the fuse. The smoke sensor is internally integrated with a power supply capacitor for providing electrical energy to the smoke sensor. The smoke sensor is arranged under the dehumidification box. One end of the coil spring is fixedly connected to the outer wall of the winding roller, and the other end of the coil spring is fixedly connected to the inside of the charger shell through the fuse.

[0020] A storage box for storing sodium bicarbonate and a drip box for storing acetic acid are fixedly installed inside the dehumidification box. A flow tube is arranged at the bottom of the drip box. The bottom of the drip box is conical, and a blocking plug is slidably installed inside the flow tube.

[0021] A connecting U-shaped tube is fixedly connected to the upper part of the storage box. The connecting U-shaped tube is arranged below the second filter cloth. A plurality of ventilation holes are provided at the bottom end of the connecting U-shaped tube.

[0022] A transmission cylinder is rotatably installed inside the charger shell, one end of which extends to the inside of the storage box, and a push rod is arranged inside the transmission cylinder through a spiral transmission, one end of which extends to the inside of the circulation pipe.

[0023] A driving wheel is fixedly installed on the outer wall of the winding roller, a driven wheel is fixedly installed on the outer wall of the transmission cylinder, and the driving wheel and the driven wheel are connected through a belt.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The explosion-proof charger described in the present invention uses a humidity sensor to measure the air humidity. When the humidity exceeds a threshold, the air duct is controlled to send the outside air into the dehumidification box through the second and third air vents to complete the dehumidification of the air. When the air humidity is lower than the threshold, the air duct is controlled to make the second air vent correspond to the fifth air vent, and the outside air is filtered and directly sent into the interior of the charger housing for heat dissipation. This can effectively prevent the air humidity from causing damage to the internal components of the charger, causing short circuit fire or even explosion, thereby improving the safety of the charger.

[0026] 2. The explosion-proof charger described in the present invention detects the smoke generated before the fire through the smoke sensor and sends a control command to blow the fuse. At this time, the coil spring releases the elastic potential energy and drives the winding roller to rotate. At the same time, the active wheel drives the driven wheel to rotate under the action of the belt, so that the transmission cylinder rotates and drives the push rod to slide in the direction of the circulation tube, so that the acetic acid inside the drip box flows through the circulation tube on the sodium bicarbonate in the storage box and produces carbon dioxide. The produced carbon dioxide can be sprayed on the fire part on the electronic component through the vent hole opened at the bottom of the U-shaped tube. At the same time, the winding roller rotates to wind up the second filter cloth, and the activated carbon powder inside the dehumidification box is poured on the electronic component to cover the fire part, thereby improving the fire extinguishing effect and reducing the risk of explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 is a stereogram of the present invention;

[0029] Figure 2 is a cross-sectional view of a charger housing in the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the dehumidification box of the present invention;

[0031] Figure 4 The present invention Figure 3 A in the enlarged view;

[0032] Figure 5 It is a schematic structural diagram of the second filter cloth in the present invention;

[0033] Figure 6 The present invention Figure 5 The enlarged view of point B in the figure;

[0034] Figure 7 It is a structural schematic diagram of the transmission rod in the present invention;

[0035] Figure 8 The present invention Figure 7 Enlarged view of point C in the figure.

[0036] In the figure: 1. charger housing; 2. dehumidification box; 3. second filter cloth; 4. exhaust fan; 5. air guide tube; 6. drive motor; 7. transmission rod; 8. smoke sensor; 9. first air outlet; 10. second air outlet; 11. third air outlet; 12. fourth air outlet; 13. fifth air outlet; 14. first filter cloth; 15. air inlet chamber; 16. storage box; 17. drip box; 18. blocking plug; 19. transmission cylinder; 20. push rod; 21. driving wheel; 22. driven wheel; 23. winding spring; 24. fuse; 25. first magnetic block; 26. hammer head; 27. conduction cylinder; 28. connecting rod; 29. ​​second magnetic block; 30. connecting U-shaped tube; 31. vent; 32. winding roller. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figures 1 to 8 As shown, an explosion-proof charger according to an embodiment of the present invention comprises a charger housing 1;

[0039] The charger housing 1 further comprises an air guide tube 5, which is rotatably mounted on one side of the charger housing 1, and has a first air outlet 9, a second air outlet 10 and a third air outlet 11. The charger housing 1 is provided with an exhaust fan 4;

[0040] The exhaust fan 4 and the air guide tube 5 are respectively arranged on both sides of the charger housing 1. The first air outlet 9, the second air outlet 10 and the third air outlet 11 provided on the air guide tube 5 are arranged in a T shape on the air guide tube 5. When the air guide tube 5 faces the first air outlet 9 upward, the second air outlet 10 and the third air outlet 11 are in the same horizontal plane (a hole groove for the air guide tube 5 to rotate is provided inside the charger housing 1). Therefore, when the first air outlet 9 is located directly above, the first air outlet 9 will be inside the hole groove. At this time, the air outside the charger housing 1 can enter the interior of the air guide tube 5 through the second air outlet 10. Since the first air outlet 9 is blocked, the incoming air can only be discharged through the third air outlet 11.

[0041] When the air guide tube 5 rotates clockwise to rotate the third air outlet 11 upward, the first air outlet 9 will be located outside the charger housing 1, and the second air outlet 10 and the third air outlet 11 will be in a vertical state.

[0042] A power motor is arranged inside the exhaust fan 4. When the exhaust fan 4 is started, the gas inside the charger housing 1 can be discharged to the outside, and at the same time, the inside of the charger housing 1 is in a negative pressure state.

[0043] The dehumidification box 2 is arranged inside the charger housing 1. A fourth air outlet 12 is provided at one end of the dehumidification box 2 close to the air guide tube 5. A second filter cloth 3 is provided at the bottom of the dehumidification box 2 for dehumidifying the air entering the fourth air outlet 12 through the activated carbon powder stored inside.

[0044] Therefore, when the first air vent 9 is located directly above, the first air vent 9 will be inside the hole groove, and the air outside the charger housing 1 can enter the interior of the air guide tube 5 through the second air vent 10. Since the first air vent 9 is blocked, the incoming air can only be discharged through the third air vent 11, and will enter the interior of the dehumidification box 2 through the fourth air vent 12 provided on the dehumidification box 2. At this time, since the interior of the charger housing 1 presents a negative pressure under the action of the exhaust fan 4, the air entering the dehumidification box 2 can quickly penetrate the activated carbon powder and enter the interior of the charger housing 1 through the second filter cloth 3. Through the characteristics of the activated carbon powder, the moisture in the air can be effectively adsorbed to make the air drier, while preventing moisture from causing carbonization channels on electronic components, causing damage to the internal components of the charger, and causing short circuit and fire problems.

[0045] The air inlet chamber 15 is configured as an L-shaped chamber and is opened inside the charger housing 1. A fifth air outlet 13 is opened at one end of the air inlet chamber 15 close to the air guide tube 5, and a first filter cloth 14 is provided at the other end.

[0046] When the air guide tube 5 rotates clockwise to rotate the third air outlet 11 upward, the first air outlet 9 will be located outside the charger housing 1, and when the second air outlet 10 and the third air outlet 11 are in a vertical state, the second air outlet 10 will correspond to the fifth air outlet 13, and the air inlet chamber 15 is connected with the inner cavity of the charger housing 1. Therefore, when the exhaust fan 4 makes the inner cavity of the charger housing 1 negative pressure, the outside air can be sucked into the inner cavity of the charger housing 1 through the fifth air outlet 13 and the second air outlet 10 to dissipate the heat of the internal electrical components, and finally the hot air is discharged through the exhaust fan 4. During this period, the air passing through the fifth air outlet 13 can be filtered by the first filter cloth 14, which can effectively avoid the dust negative pressure circuit and cause short circuit problems.

[0047] A control component, disposed inside the charger housing 1, for controlling the rotation of the air guide tube 5 according to air humidity;

[0048] Set standard air humidity;

[0049] When the air humidity is not lower than the standard air humidity: the air guide tube 5 rotates so that the third air outlet 11 corresponds to the fourth air outlet 12;

[0050] When the air humidity is lower than the standard air humidity, the air guide tube 5 rotates to make the second air outlet 10 correspond to the fifth air outlet 13 .

[0051] The standard air humidity is set at 40% RH, and the air guide tube 5 can be controlled by the control component to rotate the corresponding air outlet to a specified position.

[0052] Therefore, when the air humidity is lower than 40% RH, the air guide tube 5 rotates clockwise to match the second air outlet 10 to the fifth air outlet 13. At this time, the outside air can directly enter the interior of the charger housing 1 through the fifth air outlet 13 to directly dissipate heat to the electronic components.

[0053] When the air humidity is higher than 40% RH, the air guide tube 5 is controlled to rotate counterclockwise and the first air outlet 9 is rotated to the top. At this time, the second air outlet 10 cooperates with the third air outlet 11 to send the outside air into the dehumidification box 2 to complete the dehumidification of the air. This can effectively ensure the dryness of the air entering the charger housing 1, ensure the normal use of electrical components, and avoid the problem that water vapor may cause damage to the internal components of the charger, causing short circuit fire or even explosion.

[0054] This is a preferred embodiment of the present invention. The control component includes a humidity sensor and a drive motor 6. The drive motor 6 is fixedly mounted on the charger housing 1. The output shaft of the drive motor 6 is fixedly connected to one end of the air guide tube 5. The humidity sensor is arranged inside the air inlet chamber 15. The humidity sensor is used to control the drive motor 6 to rotate in a corresponding direction according to the air humidity.

[0055] The humidity sensor monitors the air humidity entering the air inlet chamber 15 through a set threshold. When the threshold is exceeded, a signal is sent to the logic controller, and the drive motor 6 is controlled to drive the air guide tube 5 to rotate, so that the corresponding air outlet rotates to the corresponding position (this stage is a technical means well known to technicians in this field, so it will not be elaborated here).

[0056] This is a preferred embodiment of the present invention. A conductive tube 27 is provided below the dehumidification box 2 . A hammer head 26 for striking the second filter cloth 3 is elastically installed inside the conductive tube 27 .

[0057] A pressure spring is provided between the hammer head 26 and the conductive tube 27. When the hammer head 26 slides downward, it will press the pressure spring to deform it and store elastic potential energy, which is released through the pressure spring. At this time, the hammer head 26 will quickly slide up inside the conductive tube 27 and hammer the second filter cloth 3. At this time, the second filter cloth 3 will shake. The shaking of the second filter cloth 3 will cause the activated carbon powder located above to fly, which not only facilitates the air to pass through the second filter cloth 3 through the activated carbon powder, but also increases the range of contact with the air through the flying activated carbon powder, thereby further improving the effect of drying the air.

[0058] At the same time, when the activated carbon powder is saturated with adsorption, agglomeration may occur (the effect is significant when the air humidity is not higher than the standard). At this time, the heat released by the electronic components inside the charger housing 1 can dry the activated carbon powder. At the same time, the hammer head 26 can also be used to break the dried activated carbon powder into pieces, so that it remains in powder form and ensures the adsorption effect.

[0059] This is a preferred embodiment of the present invention, the exhaust fan 4 is coaxially mounted with a transmission rod 7, the outer wall of the transmission rod 7 is fixedly mounted with a first magnetic block 25, the bottom end of the hammer head 26 is rotatably mounted with a connecting rod 28, the other end of the connecting rod 28 is rotatably mounted with a second magnetic block 29, and the first magnetic block 25 and the second magnetic block 29 attract each other.

[0060] The rotation of the transmission rod 7 is synchronized with the rotation of the exhaust fan 4. Therefore, when the transmission rod 7 drives the first magnetic block 25 to rotate to the position of the second magnetic block 29, it can attract the second magnetic block 29. Through the continuous rotation of the transmission rod 7, the hammer head 26 can be driven by the connecting rod 28 to slide in the direction away from the second filter cloth 3 until the first magnetic block 25 is separated from the second magnetic block 29. Under the action of the elastic potential energy released by the top pressure spring, the hammer head 26 is driven to reset and hammer the second filter cloth 3.

[0061] This is a preferred embodiment of the present invention. A winding roller 32 is rotatably installed inside the dehumidification box 2. The second filter cloth 3 is fixedly connected to the winding roller 32 by a connecting rope. An explosion-proof component for controlling the rotation of the winding roller 32 is provided below the air guide tube 5.

[0062] A hole is provided at the bottom of the dehumidification box 2, which is blocked by the second filter cloth 3. Therefore, when the second filter cloth 3 is rolled up, the hole will not be blocked, and the activated carbon powder stored in the dehumidification box 2 can fall into the inside of the charger housing 1.

[0063] The explosion-proof components set up can effectively monitor the fire of electrical components. If a fire is found, the winding roller 32 can be controlled to rotate and the second filter cloth 3 can be rolled up to allow the holes opened under the dehumidification box 2 to leak out, making it easier to pour the activated carbon powder onto the electronic components (although the activated carbon powder cannot directly extinguish the fire, it can produce a good fire extinguishing effect through the volume poured and the release in the early stage of the fire).

[0064] This is a preferred embodiment of the present invention. The explosion-proof component includes a smoke sensor 8, a coil spring 23, a fuse 24 and a fuse capacitor for blowing the fuse 24. The interior of the smoke sensor 8 is integrated with a power supply capacitor for providing electrical energy to the smoke sensor 8. The smoke sensor 8 is arranged below the dehumidification box 2. One end of the coil spring 23 is fixedly connected to the outer wall of the winding roller 32, and the other end of the coil spring 23 is fixedly connected to the interior of the charger housing 1 through the fuse 24.

[0065] The smoke sensor 8 can detect the smoke generated before the fire and send a control command to blow the fuse 24 (before blowing, the fuse 24 locks the coil spring 23 in a deformed state). At this time, the coil spring 23 releases its elastic potential energy and drives the winding roller 32 to rotate, thereby winding the second filter cloth 3. At this time, the activated carbon powder inside the dehumidification box 2 will be poured onto the electronic components to cover the fire site.

[0066] When an electronic component catches fire, causing an internal power outage, the power supply capacitor provided inside the smoke sensor 8 can ensure the triggering of the smoke sensor 8, and the fuse 24 can also be ensured to be blown through the fuse capacitor, thereby ensuring the normal use of the fire extinguishing function when the charger catches fire and the power is cut off.

[0067] This is a preferred embodiment of the present invention. A storage box 16 for storing sodium bicarbonate and a drip box 17 for storing acetic acid are fixedly installed inside the dehumidification box 2. A flow tube is provided at the bottom end of the drip box 17. The bottom end of the drip box 17 is conical, and a blocking plug 18 is slidably installed inside the flow tube.

[0068] This is a preferred embodiment of the present invention. A connecting U-shaped tube 30 is fixedly connected to the upper portion of the storage box 16 . The connecting U-shaped tube 30 is disposed below the second filter cloth 3 . A plurality of ventilation holes 31 are formed at the bottom end of the connecting U-shaped tube 30 .

[0069] By controlling the blocking plug 18 to slide upward inside the circulation tube, the acetic acid inside the drip box 17 can drip into the storage box 16 containing sodium bicarbonate, which will produce a certain amount of carbon dioxide and expand in the inner cavity of the storage box 16. At this time, the produced carbon dioxide can be sprayed on the fire site on the electronic component through the vent hole 31 opened at the bottom of the connecting U-shaped tube 30. At the same time, with the activated carbon covering the fire point, the fire extinguishing effect can be further improved and the risk of charger explosion can be reduced.

[0070] This is a preferred embodiment of the present invention. A transmission cylinder 19 is rotatably installed inside the charger housing 1, one end of which extends to the inside of the storage box 16. A push rod 20 is provided inside the transmission cylinder 19 through a spiral transmission, and one end of the push rod 20 extends to the inside of the circulation tube.

[0071] When the transmission cylinder 19 rotates, the push rod 20 of the spiral drive can slide toward the direction of the circulation tube. The bottom end of the blocking plug 18 is a cone bottom. Therefore, when the push rod 20 presses the inclined surface of the hammer, the blocking plug 18 can be pushed upward, so that the acetic acid inside the drip box 17 flows through the circulation tube on the sodium bicarbonate and produces carbon dioxide.

[0072] This is a preferred embodiment of the present invention. A driving wheel 21 is fixedly mounted on the outer wall of the winding roller 32, and a driven wheel 22 is fixedly mounted on the outer wall of the transmission cylinder 19. The driving wheel 21 and the driven wheel 22 are connected by a belt.

[0073] When the smoke sensor 8 detects the smoke generated before the fire, it sends a control command to blow the fuse 24. At this time, the coil spring 23 releases the elastic potential energy and drives the winding roller 32 to rotate. At the same time, the driving wheel 21 drives the driven wheel 22 to rotate under the action of the belt. At this time, the transmission cylinder 19 rotates and drives the spiral transmission push rod 20 to slide toward the direction of the circulation pipe. By pressing the blocking plug 18, the acetic acid inside the drip box 17 flows through the circulation pipe onto the sodium bicarbonate in the storage box 16 and produces carbon dioxide. The produced carbon dioxide can be sprayed on the fire site on the electronic component through the vent hole 31 opened at the bottom of the U-shaped tube 30. At the same time, the winding roller 32 rotates to wind up the second filter cloth 3, and the activated carbon powder inside the dehumidification box 2 is poured onto the electronic component to cover the fire site, thereby improving the fire extinguishing effect and reducing the risk of explosion.

[0074] Working principle: The humidity of the air entering the air inlet chamber 15 is monitored by a humidity sensor. When it exceeds a threshold value, the drive motor 6 is controlled to drive the air guide tube 5 to rotate and rotate the first air outlet 9 to the top. At this time, the second air outlet 10 cooperates with the third air outlet 11 to send the outside air into the dehumidification box 2 to complete the dehumidification of the air. This can effectively ensure the dryness of the air entering the charger housing 1 and solve the problem that water vapor may cause damage to the internal components of the charger, causing a short circuit, fire or even explosion. When the humidity of the air entering the air inlet chamber 15 is lower than the threshold value, the drive motor 6 drives the air guide tube 5 to rotate so that the first air outlet 9 is located outside, and the second air outlet 10 corresponds to the fifth air outlet 13. The outside air can directly enter the inner cavity of the charger housing 1 to dissipate heat for the internal electrical components. Finally, the hot air is discharged through the exhaust fan 4. During this period, the air passing through the fifth air outlet 13 can be filtered by the first filter cloth 14, which can effectively avoid the problem of dust negative pressure circuit causing short circuit, and can effectively improve the safety of charger use.

[0075] The smoke sensor 8 detects the smoke generated before the fire and sends a control command to blow the fuse 24. At this time, the coil spring 23 releases the elastic potential energy and drives the winding roller 32 to rotate. At the same time, the driving wheel 21 drives the driven wheel 22 to rotate under the action of the belt. At this time, the transmission cylinder 19 rotates and drives the spiral transmission push rod 20 to slide toward the flow pipe. By pressing the blocking plug 18, the acetic acid inside the drip box 17 flows through the flow pipe onto the sodium bicarbonate in the storage box 16 and produces carbon dioxide. The produced carbon dioxide can be sprayed on the fire site on the electronic component through the vent hole 31 opened at the bottom of the U-shaped tube 30. At the same time, the winding roller 32 rotates to wind up the second filter cloth 3, and the activated carbon powder inside the dehumidification box 2 is poured onto the electronic component to cover the fire site, thereby improving the fire extinguishing effect and reducing the risk of explosion.

[0076] 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.

[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships 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, rather than indicating or implying 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.

[0078] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An explosion-proof charger, comprising a charger housing (1); Features: It also comprises an air guide tube (5), the air guide tube (5) being rotatably mounted on one side of the charger housing (1), the air guide tube (5) being provided with a first air outlet (9), a second air outlet (10) and a third air outlet (11), and the charger housing (1) being provided with an exhaust fan (4); A dehumidification box (2) is arranged inside the charger housing (1), a fourth air outlet (12) is provided at one end of the dehumidification box (2) close to the air guide tube (5), and a second filter cloth (3) is provided at the bottom end of the dehumidification box (2) for dehumidifying the air entering the fourth air outlet (12) through activated carbon powder stored inside; The air inlet chamber (15) is configured as an L-shaped chamber and is opened inside the charger housing (1). The air inlet chamber (15) is provided with a fifth air outlet (13) at one end close to the air guide tube (5), and a first filter cloth (14) is provided at the other end; A control component, arranged inside the charger housing (1), and used to control the rotation of the air guide tube (5) according to air humidity; Set standard air humidity; When the air humidity is not lower than the standard air humidity: the air guide tube (5) rotates so that the third air outlet (11) corresponds to the fourth air outlet (12); When the air humidity is lower than the standard air humidity: the air guide tube (5) rotates so that the second air outlet (10) corresponds to the fifth air outlet (13).

2. An explosion-proof charger according to claim 1, characterized in that: The control component comprises a humidity sensor and a drive motor (6); the drive motor (6) is fixedly mounted on a charger housing (1); an output shaft of the drive motor (6) is fixedly connected to one end of an air guide tube (5); the humidity sensor is arranged inside an air inlet chamber (15); and the humidity sensor is used to control the drive motor (6) to rotate in a corresponding direction according to air humidity.

3. An explosion-proof charger according to claim 2, characterized in that: A conducting tube (27) is arranged below the dehumidifying box (2), and a hammer head (26) for striking the second filter cloth (3) is elastically installed inside the conducting tube (27).

4. An explosion-proof charger according to claim 3, characterized in that: The exhaust fan (4) is coaxially mounted with a transmission rod (7), a first magnetic block (25) is fixedly mounted on the outer wall of the transmission rod (7), a connecting rod (28) is rotatably mounted on the bottom end of the hammer head (26), a second magnetic block (29) is rotatably mounted on the other end of the connecting rod (28), and the first magnetic block (25) and the second magnetic block (29) attract each other.

5. An explosion-proof charger according to claim 4, characterized in that: A winding roller (32) is rotatably installed inside the dehumidification box (2), the second filter cloth (3) is fixedly connected to the winding roller (32) via a connecting rope, and an explosion-proof component for controlling the rotation of the winding roller (32) is provided below the air guide tube (5).

6. An explosion-proof charger according to claim 5, characterized in that: The explosion-proof component comprises a smoke sensor (8), a coil spring (23), a fuse (24) and a fuse capacitor for blowing the fuse (24); a power supply capacitor for providing electrical energy to the smoke sensor (8) is integrated inside the smoke sensor (8); the smoke sensor (8) is arranged below the dehumidification box (2); one end of the coil spring (23) is fixedly connected to the outer wall of the winding roller (32); and the other end of the coil spring (23) is fixedly connected to the inside of the charger housing (1) via the fuse (24).

7. An explosion-proof charger according to claim 6, characterized in that: A storage box (16) for storing sodium bicarbonate and a drip box (17) for storing acetic acid are fixedly installed inside the dehumidifying box (2). A flow tube is arranged at the bottom end of the drip box (17). The bottom end of the drip box (17) is conical. A blocking plug (18) is slidably installed inside the flow tube.

8. An explosion-proof charger according to claim 7, characterized in that: A communicating U-shaped tube (30) is fixedly connected to the upper portion of the storage box (16), the communicating U-shaped tube (30) is arranged below the second filter cloth (3), and a plurality of ventilation holes (31) are provided at the bottom end of the communicating U-shaped tube (30).

9. An explosion-proof charger according to claim 8, characterized in that: A transmission cylinder (19) is rotatably mounted inside the charger housing (1), one end of which extends into the interior of the storage box (16), and a push rod (20) is screw-driven inside the transmission cylinder (19), one end of which extends into the interior of the circulation tube.

10. An explosion-proof charger according to claim 9, characterized in that: A driving wheel (21) is fixedly mounted on the outer wall of the winding roller (32), and a driven wheel (22) is fixedly mounted on the outer wall of the transmission cylinder (19); the driving wheel (21) and the driven wheel (22) are connected via a belt.

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