Charger protection device

Abstract

The invention discloses a charger protection device, and relates to the technical field of charger protection, the charger protection device comprises a shell, the lower surface of the shell is fixedly connected with a charging head, and the input end of the charging head is provided with a plug; an air blowing mechanism penetrates through the upper surface of the shell, by arranging the air blowing mechanism, air flow can be blown into an inner cavity of the shell when the outer surface of the charging head generates high temperature due to work, so that the temperature of the outer surface of the charging head can be dissipated, and the top surface of the inner cavity of the shell is fixedly connected with a fixing frame; the end part of the fixing frame is fixedly connected with a protection mechanism, through the arrangement of the protection mechanism, when high temperature is generated in the inner cavity of the shell due to the working of the charging head, the blowing mechanism can be automatically started, and after the temperature of the outer surface of the charging head reaches a certain degree, the connection between the output end plug of the charging head and the power strip is automatically disconnected; when the temperature is high, the temperature of the charger can be automatically reduced, and the charger can be automatically disconnected.

Description

Technical Field

[0001] This invention relates to the field of charger protection technology, specifically to a charger protection device. Background Technology

[0002] Charger protection is crucial for ensuring the proper charging and lifespan of electronic devices. First, avoid excessive exposure of the charger to high temperatures, humidity, or excessive dust. High temperatures can cause internal component aging, humidity can lead to short circuits, and dust can affect heat dissipation and circuit performance. During use, never pull on the charging cable to prevent internal wire breakage, which can affect charging efficiency or even create safety hazards. Additionally, do not leave the charger connected to a power source for extended periods without a device connected, as this can leave the charger in an unloaded state, increasing wear and tear and the risk of malfunction. Choosing the right charger is also critical. Using an original charger that matches the device or a certified third-party charger ensures stable and compatible voltage, current, and other parameters, effectively protecting both the device's battery and the charger itself. If you find the charger is damaged, overheats abnormally, or has an unusual odor, stop using it immediately to prevent electric shock, fire, or other dangerous situations. Regularly checking the charger's plug and interface for damage is also an important measure to protect the charger.

[0003] A lot of heat is generated when the charger is charging; however, most chargers on the market do not automatically cool down the temperature or disconnect the charger when the surface temperature is high. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a charger protection device, comprising a housing, wherein a charging head is fixedly connected to the lower surface of the housing, and a plug is provided at the input end of the charging head;

[0005] A blower mechanism runs through the upper surface of the outer shell. By setting the blower mechanism, when the outer surface of the charging head generates high temperature due to operation, airflow is blown into the inner cavity of the outer shell, thereby dissipating the temperature of the outer surface of the charging head. A fixing frame is fixedly connected to the top surface of the inner cavity of the outer shell, and a protective mechanism is fixedly connected to the end of the fixing frame. By setting the protective mechanism, when the inner cavity of the outer shell generates high temperature due to the operation of the charging head, the blower mechanism is automatically activated, and the connection between the output plug of the charging head and the plugboard is automatically disconnected after the temperature of the outer surface of the charging head reaches a certain level. The protective mechanism includes connecting posts, which are fixedly connected to the end of the fixing frame. There are several connecting posts, and the ends of the several connecting posts are respectively fixedly connected to a first connecting plate and a second connecting plate. An adjustment mechanism is fixedly connected to the side of the second connecting plate away from the fixing frame. By setting the connecting posts, the first connecting plate and the second connecting plate can be connected to the fixing frame.

[0006] The outer surface of the housing is provided with a pushing mechanism. By providing the pushing mechanism, the plug can be pushed under the action of the protective mechanism, so that when the temperature of the outer surface of the charging head is too high, the connection between the output plug of the charging head and the plug can be automatically disconnected. The pushing mechanism includes a fixing ring, which is fixedly connected to the outer surface of the housing. A hydraulic press is fixedly connected to the inner wall of the fixing ring, and the hydraulic press penetrates the housing.

[0007] Preferably, the blower mechanism includes a fixing plate, which is fixedly connected to the upper surface of the housing. An air intake ring is fixedly connected to the outer surface of the fixing plate, and the air intake ring penetrates the housing. A mesh is fixedly connected to the bottom of the inner wall of the air intake ring, and a first support rod is fixedly connected to the inner wall of the air intake ring. A fan is fixedly connected to the end of the first support rod. By setting the mesh, external plastic sheets can be prevented from entering the inner cavity of the housing. By setting the fan, it can start or stop working under the control of the control processor, thereby blowing external airflow into the inner cavity of the housing. The fan and the control processor are connected via an electrical signal.

[0008] Preferably, a support plate is fixedly connected to the side of the first connecting plate away from the fixed frame, a connecting frame is fixedly connected to the upper surface of the support plate, a control processor is fixedly connected to the upper surface of the connecting frame, a third wire is fixedly connected to the output end of the control processor, and the end of the third wire away from the control processor is fixedly connected to the input end of the hydraulic press. By setting the control processor, electrical signals can be output to the fan and the hydraulic press, thereby controlling the fan and the hydraulic press to start or stop working.

[0009] Preferably, a variable resistance coil is fixedly connected to the outer surface of the support plate, an insulating plate is fixedly connected to the side of the variable resistance coil away from the support plate, a circuit breaker coil is fixedly connected to the side of the insulating plate away from the variable resistance coil, and a compression frame is fixedly connected to the inner cavity of the circuit breaker coil. By setting the insulating plate, the variable resistance coil and the circuit breaker coil can be made not connected, so that when the conductive slip ring is sleeved on the variable resistance coil or the circuit breaker coil, the two circuits are connected.

[0010] Preferably, the output terminal of the variable resistor coil is fixedly connected to a first terminal, which penetrates the support plate. A first wire is fixedly connected to the end of the first terminal, and the end of the first wire is fixedly connected to the input terminal of the control processor. The input terminal of the variable resistor coil is fixedly connected to a second terminal, which penetrates the support plate. A second wire is fixedly connected to the end of the second terminal, and the end of the second wire is fixedly connected to the output terminal of the control processor. By setting the first terminal, the second terminal, the first wire, and the second wire, the current passing through the variable resistor coil can flow into the control processor, thereby changing the circuit connection state.

[0011] Preferably, the adjustment mechanism includes a track tube. By setting the adjustment mechanism, the temperature in the inner cavity of the outer shell can be monitored, and the position of the conductive slip ring on the outer surface of the circuit breaker coil and the variable resistance coil can be changed according to the temperature change. The track tube is fixedly connected to the side of the second connecting plate away from the fixing frame. A sliding plate is slidably connected to the inner cavity of the track tube. A sliding block is fixedly connected to the outer surface of the sliding plate. The sliding block passes through the track tube. A conductive slip ring is fixedly connected to the end of the sliding block away from the sliding plate. The conductive slip ring is sleeved on the outer surface of the circuit breaker coil. By setting the track tube, the sliding plate and the sliding block can be limited, so that the sliding plate and the sliding block can drive the conductive slip ring to move laterally.

[0012] Preferably, a second support rod is fixedly connected to the end of the sliding plate, and a movable plate is fixedly connected to the end of the second support rod. A soft pad is fixedly connected to the side of the movable plate near the extrusion frame. The soft pad is pressed and adapted to the inner wall of the extrusion frame. By setting the second support rod, the sliding plate can be moved during the movement of the movable plate. By setting the soft pad, it is possible to prevent the movable plate from moving too far and damaging the circuit breaker coil.

[0013] Preferably, a fixing strip is fixedly connected to the end of the second connecting plate, and a sealing tube is fixedly connected to the outer surface of the fixing strip. Heat-absorbing plates are symmetrically installed on the upper and lower surfaces of the sealing tube. A movable rod is fixedly connected to the side of the movable plate near the sealing tube, and a sealing ring is fixedly connected to the outer surface of the movable rod. The sealing ring is rubbed and adapted to the inner wall of the sealing tube. By setting the sealing tube and the sealing ring, the space inside the sealing tube is sealed. By setting the heat-absorbing plate, which is made of a metal material with high thermal conductivity, the heat in the inner cavity of the outer shell can be absorbed and transferred to the inner cavity of the sealing tube, thereby causing the air in the inner cavity of the sealing tube to expand.

[0014] Preferably, the output end of the hydraulic press is provided with a pressing rod, the end of the pressing rod is fixedly connected to a moving block, the lower surface of the moving block is fixedly connected to a third support rod, and the outer side of the bottom end of the third support rod is symmetrically equipped with insulating sliding sleeves. The insulating sliding sleeves are slidably connected to the outer surface of the plug. By setting the insulating sliding sleeves, the plug can slide stably on the outer surface of the plug without hindering the operation of the plug. At the same time, when the insulating sliding sleeve slides to the outer surface of the plug near the end, it can block the connection between the plug and the power strip.

[0015] Preferably, a fourth support rod is fixedly connected to the side of the insulating sliding sleeve away from the third support rod, a connecting block is fixedly connected to the end of the fourth support rod, a positioning plate is fixedly connected to the outer surface of the connecting block, and a gasket is fixedly connected to the inner wall of the positioning plate. By setting the positioning plate and the gasket, the device can be tightly positioned on the outer surface of the socket, and the device can be moved away from the socket during the movement of the pressing rod.

[0016] This invention provides a charger protection device. It has the following beneficial effects:

[0017] 1. The charger protection device, by setting a blower mechanism, can blow airflow into the inner cavity of the outer shell when the outer surface of the charging head generates high temperature due to operation, thereby dissipating the temperature of the outer surface of the charging head.

[0018] Second, the charger protection device, by setting a protective mechanism, can automatically start the blower mechanism when the charging head generates high temperature in the inner cavity of the outer shell due to the operation of the charging head, and automatically disconnect the connection between the charging head output plug and the power strip after the temperature of the outer surface of the charging head reaches a certain level.

[0019] Third, the charger protection device, by setting a pushing mechanism, can push the plug board under the action of the protection mechanism, so as to automatically disconnect the connection between the output plug of the charger and the plug board when the temperature of the outer surface of the charger is too high.

[0020] IV. This charger protection device, by setting a control processor, can output electrical signals to the fan and hydraulic press, thereby controlling the fan and hydraulic press to start or stop working. By setting an insulating plate, the variable resistor coil and the circuit breaker coil can be disconnected. When the conductive slip ring is sleeved on the variable resistor coil or the circuit breaker coil, the two circuits are connected. By setting the first terminal, the second terminal, the first wire and the second wire, the current passing through the variable resistor coil can flow into the control processor, thereby changing the circuit connection state.

[0021] V. This charger protection device, through the setting of an adjustment mechanism, can monitor the temperature inside the outer shell cavity and change the position of the conductive slip ring on the outer surface of the circuit breaker coil and the variable resistance coil according to the temperature change. By setting the track tube, the sliding plate and the sliding block can be limited, so that the sliding plate and the sliding block can drive the conductive slip ring to move laterally. By setting the second support rod, the sliding plate can be driven to move during the movement of the movable plate. By setting the soft pad, the movable plate can be prevented from moving too far and damaging the circuit breaker coil. By setting the sealing tube and sealing ring, the space inside the sealing tube is sealed. By setting the heat absorption plate, the heat absorption plate is made of metal material with high thermal conductivity, which can absorb the heat in the inner cavity of the outer shell and transfer the heat to the inner cavity of the sealing tube, thereby causing the air in the inner cavity of the sealing tube to expand. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of a charger protection device according to the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of a charger protection device according to the present invention;

[0024] Figure 3 This is a schematic diagram of the blower mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the protective mechanism structure of the present invention;

[0026] Figure 5 This is a top view of the protective mechanism of the present invention;

[0027] Figure 6 This is a partial cross-sectional structural diagram of the protective mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0029] Figure 8 This is a schematic cross-sectional view of the adjustment mechanism of the present invention;

[0030] Figure 9 This is a schematic diagram of the actuator structure of the present invention;

[0031] Figure 10 This is a schematic diagram of a partial structure of the driving mechanism of the present invention.

[0032] In the diagram: 1. Outer shell; 2. Charging head; 3. Plug; 4. Hair dryer mechanism; 5. Fixing bracket; 6. Protective mechanism; 7. Pushing mechanism; 41. Fixing plate; 42. Air intake ring; 43. Partition net; 44. First support rod; 45. Fan; 61. Connecting post; 62. First connecting plate; 63. Second connecting plate; 64. Support plate; 65. Connecting bracket; 66. Control processor; 67. Adjustment mechanism; 68. Third wire; 69. First terminal; 610. First wire; 611. Second terminal; 612. Second wire; 613. Variable resistance coil; 614. Insulation 615. Insulating plate; 616. Circuit breaker coil; 671. Extrusion frame; 672. Track tube; 673. Sliding plate; 674. Sliding block; 675. Conductive slip ring; 676. Second support rod; 677. Movable plate; 677. Soft pad; 678. Fixing strip; 679. Sealing tube; 6710. Movable rod; 6711. Sealing ring; 6712. Heat absorber plate; 71. Fixing ring; 72. Hydraulic press; 73. Extrusion rod; 74. Moving block; 75. Third support rod; 76. Insulating sliding sleeve; 77. Fourth support rod; 78. Connecting block; 79. Positioning plate; 710. Gasket. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0034] First embodiment, such as Figures 1-3 As shown, the present invention provides a technical solution: a charger protection device, including a housing 1, a charging head 2 fixedly connected to the lower surface of the housing 1, and a plug 3 provided at the input end of the charging head 2;

[0035] A blower mechanism 4 penetrates the upper surface of the outer shell 1. By setting the blower mechanism 4, when the outer surface of the charging head 2 generates high temperature due to operation, airflow is blown into the inner cavity of the outer shell 1, thereby dissipating the temperature of the outer surface of the charging head 2. A fixing frame 5 is fixedly connected to the top surface of the inner cavity of the outer shell 1, and a protective mechanism 6 is fixedly connected to the end of the fixing frame 5. By setting the protective mechanism 6, when the inner cavity of the outer shell 1 generates high temperature due to the operation of the charging head 2, the blower mechanism 4 is automatically activated, and the connection between the output plug of the charging head 2 and the power strip is automatically disconnected after the temperature of the outer surface of the charging head 2 reaches a certain level. The protective mechanism 6 includes connecting posts 61, which are fixedly connected to the end of the fixing frame 5. There are several connecting posts 61, and the ends of the several connecting posts 61 are respectively fixedly connected to a first connecting plate 62 and a second connecting plate 63. An adjustment mechanism 67 is fixedly connected to the side of the second connecting plate 63 away from the fixing frame 5. By setting the connecting posts 61, the first connecting plate 62 and the second connecting plate 63 can be connected to the fixing frame 5.

[0036] The outer surface of the housing 1 is provided with a pushing mechanism 7. By setting the pushing mechanism 7, the plug can be pushed under the action of the protective mechanism 6, so that when the temperature of the outer surface of the charging head 2 is too high, the connection between the output plug of the charging head 2 and the plug can be automatically disconnected. The pushing mechanism 7 includes a fixing ring 71, which is fixedly connected to the outer surface of the housing 1. A hydraulic press 72 is fixedly connected to the inner wall of the fixing ring 71, and the hydraulic press 72 penetrates the housing 1.

[0037] The blower mechanism 4 includes a fixing plate 41, which is fixedly connected to the upper surface of the outer shell 1. An air intake ring 42 is fixedly connected to the outer surface of the fixing plate 41. The air intake ring 42 penetrates the outer shell 1. A mesh 43 is fixedly connected to the bottom of the inner wall of the air intake ring 42. A first support rod 44 is fixedly connected to the inner wall of the air intake ring 42. A fan 45 is fixedly connected to the end of the first support rod 44. By setting the mesh 43, external plastic skin can be prevented from entering the inner cavity of the outer shell 1. By setting the fan 45, it can start or stop working under the control of the control processor 66, thereby blowing external airflow into the inner cavity of the outer shell 1. The fan 45 is connected to the control processor 66 via an electrical signal.

[0038] Second embodiment, such as Figures 4-8As shown, a support plate 64 is fixedly connected to the side of the first connecting plate 62 away from the fixing frame 5. A connecting frame 65 is fixedly connected to the upper surface of the support plate 64. A control processor 66 is fixedly connected to the upper surface of the connecting frame 65. A third wire 68 is fixedly connected to the output end of the control processor 66. The end of the third wire 68 away from the control processor 66 is fixedly connected to the input end of the hydraulic press 72. By setting the control processor 66, electrical signals can be output to the fan 45 and the hydraulic press 72, thereby controlling the fan 45 and the hydraulic press 72 to start or stop working. The outer surface of the support plate 64 is fixedly connected to... A variable resistance coil 613 is provided. An insulating plate 614 is fixedly connected to the side of the variable resistance coil 613 away from the support plate 64. A circuit breaker coil 615 is fixedly connected to the side of the insulating plate 614 away from the variable resistance coil 613. A compression frame 616 is fixedly connected to the inner cavity of the circuit breaker coil 615. By setting the insulating plate 614, the variable resistance coil 613 and the circuit breaker coil 615 can be made not connected. When the conductive slip ring 674 is sleeved on the variable resistance coil 613 or the circuit breaker coil 615, the two circuits are connected. The output terminal of the variable resistance coil 613 is fixedly connected to a first terminal 69. A first wire 610 is fixedly connected to the end of the first terminal 69, which passes through the support plate 64. The end of the first wire 610 is fixedly connected to the input terminal of the control processor 66. A second terminal 611 is fixedly connected to the input terminal of the variable resistance coil 613. The second terminal 611 passes through the support plate 64, and a second wire 612 is fixedly connected to the end of the second terminal 611. The end of the second wire 612 is fixedly connected to the output terminal of the control processor 66. By setting the first terminal 69, the second terminal 611, the first wire 610, and the second wire 612, the variable resistance coil can... The current from 613 can flow into the control processor 66, thereby changing the circuit connection state. In use, when the conductive slip ring 674 is located at the circuit breaker coil 615, the device works normally, allowing the charging head 2 to work normally. When the adjustment mechanism 67 is activated by the high temperature inside the housing 1, the conductive slip ring 674 is located on the outer surface of the variable resistance coil 613. At this time, the control processor 66 will control the fan 45 and the hydraulic press 72 to start working. After the fan 45 dissipates the heat in the inner cavity of the housing 1, the conductive slip ring 674 slides back to the outer surface of the circuit breaker coil 615, thereby stopping the fan 45 from working.

[0039] The adjustment mechanism 67 includes a track tube 671. By setting the adjustment mechanism 67, the temperature inside the cavity of the outer casing 1 can be monitored, and the position of the conductive slip ring 674 on the outer surface of the circuit breaker coil 615 and the variable resistor coil 613 can be changed according to temperature changes. The track tube 671 is fixedly connected to the side of the second connecting plate 63 away from the fixing frame 5. A sliding plate 672 is slidably connected to the inner cavity of the track tube 671. A sliding block 673 is fixedly connected to the outer surface of the sliding plate 672. The sliding block 673 penetrates the track tube 671, and the conductive slip ring 674 is fixedly connected to the end of the sliding block 673 away from the sliding plate 672. The conductive slip ring 674 is sleeved on the outer surface of the circuit breaker coil 615. By providing a track tube 671, the sliding plate 672 and the sliding block 673 can be limited, allowing the sliding plate 672 and the sliding block 673 to drive the conductive slip ring 674 to move laterally. A second support rod 675 is fixedly connected to the end of the sliding plate 672, and a movable plate 676 is fixedly connected to the end of the second support rod 675. A soft pad 677 is fixedly connected to the side of the movable plate 676 near the compression frame 616. The soft pad 677 is pressed and fitted against the inner wall of the compression frame 616. By providing the second support rod 675, the movable plate 676 can move. During the process, the sliding plate 672 moves. A soft pad 677 is provided to prevent the movable plate 676 from moving too far and damaging the circuit breaker coil 615. A fixing strip 678 is fixedly connected to the end of the second connecting plate 63. A sealing tube 679 is fixedly connected to the outer surface of the fixing strip 678. Heat-absorbing plates 6712 are symmetrically installed on the upper and lower surfaces of the sealing tube 679. A movable rod 6710 is fixedly connected to the side of the movable plate 676 near the sealing tube 679. A sealing ring 6711 is fixedly connected to the outer surface of the movable rod 6710. The sealing ring 6711 rubs against the inner wall of the sealing tube 679. The system is configured such that the space inside the sealing tube 679 is sealed by setting a sealing tube 679 and a sealing ring 6711. The heat absorption plate 6712 is made of a metal material with high thermal conductivity, which can absorb the heat in the inner cavity of the outer shell 1 and transfer the heat to the inner cavity of the sealing tube 679, thereby causing the air in the inner cavity of the sealing tube 679 to expand. In use, the heat absorption plate 6712 is affected by the heat in the inner cavity of the outer shell 1 and will transfer the heat to the inner cavity of the sealing tube 679, thereby causing the air in the inner cavity of the sealing tube 679 to expand, which in turn pushes the movable rod 6710 to move, and finally causes the conductive slip ring 674 to move.

[0040] The third embodiment, such as Figures 9-10As shown, the output end of the hydraulic press 72 is provided with a pressing rod 73. A moving block 74 is fixedly connected to the end of the pressing rod 73. A third support rod 75 is fixedly connected to the lower surface of the moving block 74. Insulating sliding sleeves 76 are symmetrically installed on the outer side of the bottom end of the third support rod 75. The insulating sliding sleeves 76 are slidably connected to the outer surface of the plug 3. By setting the insulating sliding sleeves 76, the plug 3 can slide stably on its outer surface without hindering its operation. Simultaneously, when the insulating sliding sleeves 76 slide to the outer surface of the plug 3 near its end, they can block the connection between the plug 3 and the power strip. A third support rod 75 is fixedly connected to the side of the insulating sliding sleeve 76 away from the third support rod 75. The fourth support rod 77 has a connecting block 78 fixedly connected to its end. A positioning plate 79 is fixedly connected to the outer surface of the connecting block 78. A gasket 710 is fixedly connected to the inner wall of the positioning plate 79. By setting the positioning plate 79 and the gasket 710, the device can be tightly positioned on the outer surface of the power strip. During the movement of the pressing rod 73, the device is moved away from the power strip. In use, when the conductive slip ring 674 is located on the outer surface of the variable resistance coil 613, the control processor 66 will control the hydraulic press 72 to start working, thereby causing the pressing rod 73 to drive the insulating sliding sleeve 76 and the positioning plate 79 to start moving. As they move, the device is disengaged from the power strip.

[0041] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A charger protection device, characterized in that, include: The outer casing (1) has a charging head (2) fixedly connected to its lower surface, and the input end of the charging head (2) is provided with a plug (3). A blower mechanism (4) runs through the upper surface of the outer shell (1). A fixing frame (5) is fixedly connected to the top surface of the inner cavity of the outer shell (1). A protective mechanism (6) is fixedly connected to the end of the fixing frame (5). The protective mechanism (6) includes a connecting column (61). The connecting column (61) is fixedly connected to the end of the fixing frame (5). There are several connecting columns (61). The ends of the several connecting columns (61) are respectively fixedly connected to a first connecting plate (62) and a second connecting plate (63). An adjustment mechanism (67) is fixedly connected to the side of the second connecting plate (63) away from the fixing frame (5). The outer surface of the outer shell (1) is provided with a pushing mechanism (7), the pushing mechanism (7) includes a fixing ring (71), the fixing ring (71) is fixedly connected to the outer surface of the outer shell (1), and a hydraulic press (72) is fixedly connected to the inner wall of the fixing ring (71), the hydraulic press (72) penetrates the outer shell (1).

2. The charger protection device according to claim 1, characterized in that: The blower mechanism (4) includes a fixing plate (41), which is fixedly connected to the upper surface of the outer shell (1). An air intake ring (42) is fixedly connected to the outer surface of the fixing plate (41). The air intake ring (42) penetrates the outer shell (1). A mesh (43) is fixedly connected to the bottom of the inner wall of the air intake ring (42). A first support rod (44) is fixedly connected to the inner wall of the air intake ring (42). A fan (45) is fixedly connected to the end of the first support rod (44).

3. The charger protection device according to claim 1, characterized in that: A support plate (64) is fixedly connected to the side of the first connecting plate (62) away from the fixed frame (5). A connecting frame (65) is fixedly connected to the upper surface of the support plate (64). A control processor (66) is fixedly connected to the upper surface of the connecting frame (65). A third wire (68) is fixedly connected to the output end of the control processor (66). The end of the third wire (68) away from the control processor (66) is fixedly connected to the input end of the hydraulic press (72).

4. A charger protection device according to claim 3, characterized in that: A variable resistance coil (613) is fixedly connected to the outer surface of the support plate (64). An insulating plate (614) is fixedly connected to the side of the variable resistance coil (613) away from the support plate (64). A circuit breaker coil (615) is fixedly connected to the side of the insulating plate (614) away from the variable resistance coil (613). A compression frame (616) is fixedly connected to the inner cavity of the circuit breaker coil (615).

5. A charger protection device according to claim 4, characterized in that: The output end of the variable resistance coil (613) is fixedly connected to a first terminal (69), which penetrates the support plate (64). The end of the first terminal (69) is fixedly connected to a first wire (610), and the end of the first wire (610) is fixedly connected to the input end of the control processor (66). The input end of the variable resistance coil (613) is fixedly connected to a second terminal (611), which penetrates the support plate (64). The end of the second terminal (611) is fixedly connected to a second wire (612), and the end of the second wire (612) is fixedly connected to the output end of the control processor (66).

6. A charger protection device according to claim 5, characterized in that: The adjustment mechanism (67) includes a track tube (671), which is fixedly connected to the side of the second connecting plate (63) away from the fixing frame (5). A sliding plate (672) is slidably connected to the inner cavity of the track tube (671). A sliding block (673) is fixedly connected to the outer surface of the sliding plate (672). The sliding block (673) passes through the track tube (671). A conductive slip ring (674) is fixedly connected to one end of the sliding block (673) away from the sliding plate (672). The conductive slip ring (674) is sleeved on the outer surface of the circuit breaker coil (615).

7. A charger protection device according to claim 6, characterized in that: The end of the sliding plate (672) is fixedly connected to a second support rod (675), and the end of the second support rod (675) is fixedly connected to a movable plate (676). A soft pad (677) is fixedly connected to the side of the movable plate (676) near the extrusion frame (616), and the soft pad (677) is pressed and adapted to the inner wall of the extrusion frame (616).

8. A charger protection device according to claim 7, characterized in that: A fixing strip (678) is fixedly connected to the end of the second connecting plate (63). A sealing tube (679) is fixedly connected to the outer surface of the fixing strip (678). Heat-absorbing plates (6712) are symmetrically installed on the upper and lower surfaces of the sealing tube (679). A movable rod (6710) is fixedly connected to the side of the movable plate (676) near the sealing tube (679). A sealing ring (6711) is fixedly connected to the outer surface of the movable rod (6710). The sealing ring (6711) is rubbed against the inner wall of the sealing tube (679).

9. A charger protection device according to claim 8, characterized in that: The output end of the hydraulic press (72) is provided with a pressing rod (73), and a moving block (74) is fixedly connected to the end of the pressing rod (73). A third support rod (75) is fixedly connected to the lower surface of the moving block (74). An insulating sliding sleeve (76) is symmetrically installed on the outer side of the bottom end of the third support rod (75). The insulating sliding sleeve (76) is slidably connected to the outer surface of the plug (3).

10. A charger protection device according to claim 9, characterized in that: The insulating sliding sleeve (76) is fixedly connected to a fourth support rod (77) on the side away from the third support rod (75). A connecting block (78) is fixedly connected to the end of the fourth support rod (77). A positioning plate (79) is fixedly connected to the outer surface of the connecting block (78). A gasket (710) is fixedly connected to the inner wall of the positioning plate (79).

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