High-efficiency high-power-density power supply

Abstract

The invention relates to the technical field of battery energy storage, in particular to a high-efficiency and high-power-density power supply which comprises a protection box, a mounting groove is formed in the protection box, and through use of a multi-stage heat dissipation assembly and an induction fire extinguishing assembly, in the working process of a power supply main body, when low-power operation is carried out, the power supply main body does not work; cooling can be achieved only through cooperation between a heat dissipation pump and a heat dissipation pipe, when high-power use is conducted and the temperature exceeds a set threshold value, a servo motor is driven to start to dissipate heat, air cooling and water cooling are matched with each other, the heat dissipation efficiency is greatly improved, the service life of the device is prolonged, and when a fire occurs in an extreme situation, an induction fire extinguishing assembly is used for extinguishing fire. The internal device is destructively driven, so that open fire is treated in the first time, the interior of the device is sealed, and the possibility that external oxygen enters the protection box is reduced and isolated, and the possibility that other injuries are caused by fire spreading when a fire breaks out is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of battery energy storage, and in particular to a high-efficiency and high-power-density power supply. Background Art

[0002] A high-efficiency, high-power-density power supply is a power supply system that can achieve high power output in a small volume while maintaining low losses. Its small size makes it more flexible and has a wider range of usage scenarios. It achieves the above functions and characteristics through new materials, new topologies and advanced packaging. It is widely used in data centers, communication equipment, electric vehicles and other fields.

[0003] In the existing technology, density power supplies are widely used in various scenarios due to their small size and high power characteristics during use. However, under long-term high-power use, heat will be generated inside the device. The accumulation of heat inside the device will not only affect the service life of the device and the stability of power output, but may also cause the risk of fire in extreme environments, causing damage to equipment around the device and causing huge property losses.

[0004] The above device still has shortcomings when used in practice.

[0005] Based on this, the present invention discloses a high-efficiency and high-power density power supply. Summary of the Invention

[0006] In order to solve the problem raised in the background technology, high-density power supplies are widely used in various scenarios due to their small size and high power characteristics during use. However, under long-term high-power use, heat will be generated inside the device. The accumulation of heat inside the device will not only affect the service life of the device and the stability of power output, but may also cause the risk of fire in extreme environments, causing damage to equipment around the device and causing huge property losses. The present invention provides a high-efficiency and high-power density power supply, which includes a protective box, wherein a mounting groove is installed inside the protective box; a power supply body is installed on the top of the outer side of the mounting groove; and a ventilation hole is opened on one side of the outer side of the protective box; A multi-stage heat dissipation assembly is provided at the bottom of the inner side of the protective box; the multi-stage heat dissipation assembly is interconnected with the power supply body; the multi-stage heat dissipation assembly includes a firing mechanism, a crushing mechanism, a plug-in mechanism, and a sealing mechanism; the firing mechanism and the sealing mechanism cooperate to seal the protective box; The induction fire extinguishing component is located on the top of the protection box and has a burying mechanism inside. The burying mechanism and the induction fire extinguishing component cooperate with each other to extinguish the fire inside the protection box; Preferably, the multi-stage heat dissipation assembly includes a heat pump; the heat pump is located on the outside of the protective box; a heat pipe is installed at the output end of the heat pump; the heat pipe is located at the bottom inside the protective box; a heat conductive block is installed inside the heat pipe; the top of the heat conductive block is interconnected with the mounting groove; servo motors are installed on both sides of the outside of the protective box; the output end of the servo motor is fixedly connected to a telescopic rod; the telescopic end of the telescopic rod is fixedly connected to fan blades; the fan blades are located on one side of the inside of the protective box; a signal receiving module is installed at one end of the outside of the servo motor; a temperature sensing device is installed on the outside of the power supply body; a sliding plate is slidably connected to one side of the inside of the protective box; a sealing plug is fixed to the side of the sliding plate away from the power supply body; the sealing plug is used in conjunction with the air vent; and a power cord is installed in the middle of the sliding plate.

[0007] Preferably, the firing mechanism includes locking teeth; the locking teeth are located on the outside; the inside of the protective box is rotatably connected to a toothed rotating cylinder close to the servo motor; the inside of the protective box is fixedly connected to a fixed slide groove close to the toothed rotating cylinder; the inside of the fixed slide groove is slidably connected to a rack; the rack and the toothed rotating cylinder are engaged with each other; the inside of the protective box is installed; the end of the rack is fixedly connected to a cutting head; the fan blades rotate inside.

[0008] Preferably, the sealing mechanism includes a sliding cylinder; the sliding cylinder is located on both sides of the interior of the protective box; a flame-retardant partition is slidably connected inside the sliding cylinder; a fixed shaft is fixedly connected to the end of the sliding cylinder; a cutting groove is provided on the outside of the fixed shaft; a compression spring is fixedly connected to the interior of the sliding cylinder; one end of the compression spring is interconnected with the flame-retardant partition; a tensioning band is fixed to the side of the flame-retardant partition close to the compression spring; the tensioning band is used in conjunction with the cutting groove.

[0009] Preferably, the crushing mechanism includes an inclined block; the inclined block is located on one side of the interior of the protective box; a buckle is hinged on the outside of the inclined block; the buckle is interconnected with one end of the rack; a crushing block is provided on the top of the buckle; and the buckle limits the crushing block.

[0010] Preferably, the plug-in / plug-out mechanism includes a contact spring guide groove; the contact spring guide groove is located on one side of the exterior of the power supply body; the end of the power cord is fixed with a slot; the slot slides inside the contact spring guide groove.

[0011] Preferably, the induction fire extinguishing assembly includes a sand box; a sand inlet is opened on the top of the sand box; a sealing block is installed inside the sand inlet; two groups of carbon dioxide high-pressure gas cylinders are fixedly connected to the bottom inside the sand box; a nozzle is fixedly connected to the end of the carbon dioxide high-pressure gas cylinder; a pulling plate is installed at the end of the nozzle; a pull rope is fixedly connected to the end of the pulling plate; and the ends of the pull rope are connected to each other.

[0012] Preferably, the burying mechanism includes a connecting pipe; an inflatable air cushion is fixedly connected to the end of the connecting pipe; and the inflatable air cushion is located inside the sand box.

[0013] Preferably, there are multiple groups of blades on the outside of the fan blades.

[0014] Preferably, the heat conducting block is filled with paraffin.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In this high-efficiency and high-power density power supply, through the use of multi-stage heat dissipation components and induction fire extinguishing components, the power supply body can be cooled during operation when running at low power simply by the cooperation between the heat pump and the heat pipe. When used at high power, when the temperature exceeds the set threshold, the servo motor will be driven to start heat dissipation, so that air cooling and water cooling can cooperate with each other, greatly improving the heat dissipation efficiency and increasing the service life of the device. When encountering extreme situations and fire occurs, the induction fire extinguishing component will destructively drive the internal device to achieve the first time to deal with the open flame, and seal and reduce the interior of the device to isolate the possibility of external oxygen entering the protective box, greatly reducing the possibility of fire spreading and causing other damage when a fire occurs.

[0016] 2. In this high-efficiency and high-power-density power supply, the eddy current generated by the crushing groove is crushed, so that the noise spectrum is transferred to the high-frequency band to which the human ear is insensitive, thereby reducing the impact of noise on the human ear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the protection box of the present invention; Figure 3 It is a structural schematic diagram of the power supply body of the present invention; Figure 4 It is a structural schematic diagram of the heat dissipation pipe of the present invention; Figure 5 It is a structural schematic diagram of the fan blade of the present invention; Figure 6 It is a schematic structural diagram of the rack of the present invention; Figure 7 It is a structural schematic diagram of the fixed chute of the present invention; Figure 8 It is a structural schematic diagram of the flame retardant partition of the present invention; Figure 9 Schematic diagram of the structure of the inflatable air cushion of the present invention; Figure 10 for Figure 7 Enlarged view of point A.

[0018] The meaning of each number in the figure is: 1. Protective box; 101. Mounting slot; 102. Power supply unit; 103. Ventilation hole; 2. Cooling pump; 201. Heat pipe; 202. Heat conducting block; 203. Servo motor; 204. Signal receiving module; 205. Temperature sensing device; 206. Telescopic rod; 207. Fan blade; 208. Sliding plate; 209. Sealing plug; 2010. Power cord; 3. Snap-on teeth; 301. Toothed rotating cylinder; 302. Fixed slide; 303. Rack; 304. Cutting knife Head; 4. Sliding cylinder; 401. Flame-retardant partition; 402. Compression spring; 403. Tension belt; 404. Fixed shaft; 405. Cutting groove; 5. Bevel block; 501. Buckle; 502. Crushing block; 6. Contact shrapnel guide groove; 601. Slot; 7. Sand box; 701. Sand inlet; 702. Sealing block; 703. Carbon dioxide high-pressure cylinder; 704. Nozzle; 705. Pull plate; 706. Pull rope; 8. Connecting pipe; 801. Inflatable air cushion; 9. Crushing groove. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] During use, high-density power supplies are widely used in various scenarios due to their small size and high power characteristics. However, under long-term high-power use, heat will be generated inside the device. The accumulation of heat inside the device will not only affect the service life of the device and the stability of power output, but may also pose a risk of fire in extreme environments, causing damage to equipment around the device and causing huge property losses.

[0021] To this end, the present invention provides a high efficiency and high power density power supply, see Figure 1-10 As shown, it includes a protective box 1, wherein a mounting groove 101 is installed inside the protective box 1; a power supply body 102 is installed on the top outside the mounting groove 101; and a ventilation hole 103 is opened on one side of the outer side of the protective box 1; A multi-stage heat dissipation assembly is provided at the bottom inner side of the protective box 1; the multi-stage heat dissipation assembly is interconnected with the power supply body 102; the multi-stage heat dissipation assembly includes a firing mechanism, a crushing mechanism, a plugging and unplugging mechanism, and a sealing mechanism; the firing mechanism and the sealing mechanism cooperate to seal the protective box 1; The induction fire extinguishing component is located on the top of the protection box 1 and is provided with a burying mechanism inside the protection box 1 . The burying mechanism and the induction fire extinguishing component cooperate with each other to extinguish the fire inside the protection box 1 .

[0022] The multi-stage heat dissipation assembly includes a heat pump 2; the heat pump 2 is located on the outside of the protective box 1; a heat pipe 201 is installed at the output end of the heat pump 2; the heat pipe 201 is located at the bottom inside the protective box 1; a heat conducting block 202 is installed inside the heat pipe 201; the top of the heat conducting block 202 is interconnected with the mounting groove 101; a servo motor 203 is installed on both sides of the outside of the protective box 1; a telescopic rod 206 is fixedly connected to the output end of the servo motor 203; a fan blade 207 is fixedly connected to the telescopic end of the telescopic rod 206; the fan blade 207 is located on the inside of the protective box 1; a signal receiving module 204 is installed at one end outside the servo motor 203; the power supply A temperature sensing device 205 is installed on the outside of the main body 102; a sliding plate 208 is slidably connected to one side of the interior of the protective box 1; a sealing plug 209 is fixedly connected to the side of the sliding plate 208 away from the power supply main body 102; the sealing plug 209 is used in conjunction with the air vent 103; a power cord 2010 is installed in the middle of the sliding plate 208; the firing mechanism includes a snap-fit ​​tooth 3; the snap-fit ​​tooth 3 is located on the outside of 27; a toothed rotating cylinder 301 is rotatably connected to the side of the protective box 1 near the servo motor 203; a fixed slide 302 is fixedly connected to the side of the protective box 1 near the toothed rotating cylinder 301; a rack 30 is slidably connected to the fixed slide 302. 3; the rack 303 is meshed with the toothed rotating cylinder 301; a cutting head 304 is fixed to the end of the rack 303; 305 is installed on the inside of the protective box 1; 305 is made of polyethylene, which will begin to melt when burned by flames; the fan blade 207 rotates inside 305; the sealing mechanism includes a sliding cylinder 4; the sliding cylinder 4 is located on both sides of the inside of the protective box 1; a flame-retardant partition 401 is slidably connected inside the sliding cylinder 4; a fixed shaft 404 is fixed to the end of the sliding cylinder 4; a cutting groove 405 is provided on the outside of the fixed shaft 404; a compression spring 402 is fixed to the inside of the sliding cylinder 4; one end of the compression spring 402 It is interconnected with the flame-retardant partition 401; a tensioning belt 403 is fixedly connected to the side of the flame-retardant partition 401 near the compression spring 402; the tensioning belt 403 is used in conjunction with the cutting groove 405; the crushing mechanism includes an inclined block 5; the inclined block 5 is located on one side of the interior of the protective box 1; a buckle 501 is hinged on the outside of the inclined block 5; the buckle 501 is interconnected with one end of the rack 303; a crushing block 502 is provided on the top of the buckle 501; the buckle 501 limits the crushing block 502; the plug-in mechanism includes a contact spring guide groove 6; the contact spring guide groove 6 is located on the outside of the power supply body 102; the end of the power cord 2010 is fixed with a slot 601;The slot 601 slides inside the contact spring guide groove 6, and the grooves provided inside the contact spring guide groove 6 increase the contact area between the slot 601 and the contact spring guide groove 6. Through multi-point contact, the contact resistance is reduced, and the heat generation effect is reduced. At the same time, during the plugging and unplugging process, the friction between the contact spring guide groove 6 and the slot 601 can scrape off the oxide film on the metal surface and maintain a low-resistance connection; the induction fire extinguishing component includes a sand box 7; a sand inlet 701 is provided on the top of the sand box 7; a sealing block 702 is installed inside the sand inlet 701; two groups of carbon dioxide high-pressure gas cylinders 703 are fixedly connected to the bottom inside the sand box 7; liquid carbon dioxide is injected into the carbon dioxide high-pressure gas cylinders 703, and ... box 7 The end of the high-pressure carbon dioxide cylinder 703 is fixedly connected to a nozzle 704. The nozzle 704 is then aligned with the power supply body 102. A pull plate 705 is mounted on the end of the nozzle 704. A pull rope 706 is fixedly connected to the end of the pull plate 705. The end of the pull rope 706 is connected to 305. The burying mechanism includes a connecting pipe 8. The end of the connecting pipe 8 is fixedly connected to an inflatable air cushion 801. The inflatable air cushion 801 is located inside the sand box 7. The inflatable air cushion 801 and the high-pressure carbon dioxide cylinder 703 are connected via the connecting pipe 8. The liquid carbon dioxide inside the high-pressure carbon dioxide cylinder 703 will vaporize, filling the interior of the inflatable air cushion 801, keeping it taut and sealing the bottom of the sand box 7.

[0023] When working, first install the power supply body 102 on the top of the installation slot 101 inside the protective box 1, then place the sand box 7 on the top of the protective box 1, and then open the sand box 7 through the sealing block 702, and pour sand into the sand box 7 through the sand inlet 701. The sand is blocked by the inflatable air cushion 801 and remains stationary inside the sand box 7. At this time, the sealing block 702 is used to close the sand inlet 701, and then the power cord 2010 is connected to the slot 601, and the sliding plate 208 and the slot 601 are pushed close to the contact spring guide groove 6. The power cord 2010 is electrically connected to the power supply body 102. At the same time, a flame retardant partition 401 is provided between the sliding plate 208 and the power supply body 102 to separate them. The sealing plug 209 leaves the vent hole 103, which can realize the exchange of airflow and heat inside the protective box 1. When the power supply body 102 starts to work, the heat pump 2 is driven to start working, and the coolant inside the heat pump 2 is pumped into the heat pipe 201. The heat pipe 201 is then connected to the heat conductive block 202 and the mounting groove 101. The coolant flows quickly inside the heat pipe 201. The power supply body 102 is driven by the heat generated by the power supply body 102 during operation, thereby realizing cooling and heat dissipation of the power supply body 102. When the internal heat of the power supply body 102 is dissipated through the heat dissipation pipe 201, if the temperature continues to rise due to the high power use, the signal receiving module 204 and the temperature sensing device 205 are set to sense the temperature. When the temperature of the power supply body 102 exceeds the set threshold, the signal receiving module 204 drives the servo motor 203 to start working, driving the telescopic rod 206 and the fan blades 207 to start rotating, and the wind force generated is the same as the heat dissipation. The heat pipes 201 cooperate with each other to achieve more efficient heat dissipation. When the power supply body 102 experiences thermal runaway and fire due to long-term high-power operation, 305 will begin to melt. When 305 melts, the telescopic rod 206 will retract, driving the engaging teeth 3 to be stuck inside the toothed rotating cylinder 301. At the same time, the fan blades 207 continue to rotate, driving the rack 303 to slide on the top of the fixed slide groove 302, causing the cutting head 304 to collide with the fixed shaft 404. The cutting head 304 cooperates with the cutting groove 405 to break the tensioning belt 403.At this time, the tightened compression spring 402 quickly resets, pushing the flame retardant partition 401 to slide inside the sliding cylinder 4. The impact force pushes the sliding plate 208 to drive the slot 601 to disengage from the power supply body 102, and the power supply body 102 is powered off. At the same time, when the sliding plate 208 is pushed, the sealing plug 209 is stuck in the air vent 103 to seal the air vent 103 to isolate the internal oxygen. When the rack 303 hits the fixed shaft 404, the other end of the rack 303 pulls the buckle 501 on the outside of the inclined block 5, so that the buckle 501 is separated from the limit of the broken block 502, and the broken block 502 will be broken. Due to gravity, it falls into the protection box 1 and smashes the heat pipe 201. At this time, the heat pump 2 will continue to work and spray the coolant in the heat pipe 201 into the protection box 1, which has a certain fire extinguishing effect. When 305 melts, 305 pulls the pull rope 706 and the pull plate 705 to unblock the nozzle 704. At this time, the liquid carbon dioxide in the carbon dioxide high-pressure gas cylinder 703 is sprayed into the protection box 1 to extinguish the fire. At the same time, the carbon dioxide absorbs a lot of heat in the process of gasification, which further reduces the temperature inside the protection box 1. After the carbon dioxide is sprayed, the inside of the inflatable air cushion 801 begins to fall due to the lack of gas support. At this time, the sand inside the sand box 7 will fall into the inside of the protective box 1, burying the power supply body 102, cooling it down through carbon dioxide, closing the air vents 103, forming a closed space, smashing the heat pipe 201 and spraying the coolant inside the heat pipe 201 to assist in fire extinguishing. After the fire is extinguished, use sand to bury the fire to further isolate oxygen and absorb heat. Through the use of multi-stage heat dissipation components and induction fire extinguishing components, the power supply body 102 can be operated at low power only through The cooperation between the heat pump 2 and the heat pipe 201 can achieve cooling. When used at high power, when the temperature exceeds the set threshold, the servo motor 203 will be driven to start dissipating heat, so that air cooling and water cooling can cooperate with each other, greatly improving the heat dissipation efficiency and increasing the service life of the device. When an extreme situation occurs and a fire occurs, the induction fire extinguishing component will drive the internal device destructively, with the aim of dealing with the open flame as soon as possible, and sealing and lowering the interior of the device to isolate the possibility of external oxygen entering the protective box 1, greatly reducing the possibility of the fire spreading and causing other damage when a fire occurs.

[0024] For details, see Figure 4-5 As shown, multiple groups of crushing grooves 9 are provided on the outside of the fan blade 207; the interior of the heat-conducting block 202 is filled with paraffin, which can absorb heat and liquefy, and has the ability to absorb a large amount of heat in a short period of time without significant temperature increase. Before the paraffin is completely melted, its own temperature is basically constant, which has an auxiliary enhancing effect on the heat dissipation effect of the power supply body 102.

[0025] During operation, when the fan blades 207 continuously rotate to generate wind, the rotation of the fan blades 207 will generate eddies, which will generate high-frequency noise and vibration. These noise and vibration will affect the surrounding environment and human ears. Therefore, the eddies generated by the crushing grooves 9 are crushed to transfer the noise spectrum to the high-frequency band to which the human ear is not sensitive, thereby reducing the impact of noise on the human ear.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and high-power density power supply, comprising a protective box (1), characterized in that: The protective box (1) is provided with a mounting groove (101) inside; a power source body (102) is provided on the top outside the mounting groove (101); and a ventilation hole (103) is provided on one side outside the protective box (1); A multi-stage heat dissipation component is arranged at the bottom inside the protective box (1); the multi-stage heat dissipation component is connected to the power supply body (102); the multi-stage heat dissipation component includes a firing mechanism, a crushing mechanism, a plugging and unplugging mechanism, and a sealing mechanism; the firing mechanism and the sealing mechanism cooperate to seal the protective box (1); The induction fire extinguishing component is located on the top of the protection box (1), and a burying mechanism is provided inside the protection box. The burying mechanism and the induction fire extinguishing component cooperate with each other to extinguish the fire inside the protection box (1).

2. The high-efficiency, high-power-density power supply according to claim 1, characterized in that: The multi-stage heat dissipation assembly includes a heat pump (2); the heat pump (2) is located on one side of the outside of the protective box (1); a heat pipe (201) is installed at the output end of the heat pump (2); the heat pipe (201) is located at the bottom of the inner side of the protective box (1); a heat conduction block (202) is installed inside the heat pipe (201); the top of the heat conduction block (202) is connected to the mounting groove (101); servo motors (203) are installed on both sides of the outside of the protective box (1); a telescopic rod (206) is fixed to the output end of the servo motor (203); the telescopic end of the telescopic rod (206) is fixed A fan blade (207) is connected; the fan blade (207) is located on one side of the interior of the protective box (1); a signal receiving module (204) is installed on one end of the exterior of the servo motor (203); a temperature sensing device (205) is installed on the exterior of the power supply body (102); a sliding plate (208) is slidably connected to one side of the interior of the protective box (1); a sealing plug (209) is fixedly connected to the side of the sliding plate (208) away from the power supply body (102); the sealing plug (209) is used in conjunction with the air vent (103); a power cord (2010) is installed in the middle of the sliding plate (208).

3. The high-efficiency, high-power-density power supply according to claim 1, characterized in that: The firing mechanism includes a locking tooth (3); the locking tooth (3) is located outside (27); a toothed rotating cylinder (301) is rotatably connected to the side of the protective box (1) near the servo motor (203); a fixed slide (302) is fixedly connected to the side of the protective box (1) near the toothed rotating cylinder (301); a rack (303) is slidably connected inside the fixed slide (302); the rack (303) and the toothed rotating cylinder (301) are meshed with each other; (305) is installed inside the protective box (1); a cutting head (304) is fixedly connected to the end of the rack (303); the fan blade (207) rotates inside (305).

4. The high-efficiency and high-power-density power supply according to claim 1, characterized in that: The sealing mechanism includes a sliding cylinder (4); the sliding cylinder (4) is located on both sides of the interior of the protective box (1); a flame-retardant partition (401) is slidably connected inside the sliding cylinder (4); a fixed shaft (404) is fixedly connected to the end of the sliding cylinder (4); a cutting groove (405) is provided on the outside of the fixed shaft (404); a tightening spring (402) is fixedly connected to the interior of the sliding cylinder (4); one end of the tightening spring (402) is interconnected with the flame-retardant partition (401); a tensioning belt (403) is fixedly connected to the side of the flame-retardant partition (401) close to the tightening spring (402); the tensioning belt (403) is used in conjunction with the cutting groove (405).

5. The high-efficiency and high-power-density power supply according to claim 1, characterized in that: The crushing mechanism comprises an inclined block (5); the inclined block (5) is located on one side of the interior of the protective box (1); a buckle (501) is hingedly connected to the outside of the inclined block (5); the buckle (501) is connected to one end of the rack (303); a crushing block (502) is provided on the top of the buckle (501); and the buckle (501) limits the crushing block (502).

6. The high-efficiency and high-power-density power supply according to claim 2, characterized in that: The plug-in / plug mechanism comprises a contact spring guide groove (6); the contact spring guide groove (6) is located on one side outside the power source body (102); the end of the power cord (2010) is fixedly connected with a slot (601); the slot (601) slides inside the contact spring guide groove (6).

7. The high-efficiency and high-power-density power supply according to claim 1, characterized in that: The induction fire extinguishing assembly comprises a sand box (7); a sand inlet (701) is provided at the top of the sand box (7); a sealing block (702) is installed inside the sand inlet (701); two groups of carbon dioxide high-pressure gas cylinders (703) are fixedly connected to the bottom of the inner side of the sand box (7); a nozzle (704) is fixedly connected to the end of the carbon dioxide high-pressure gas cylinder (703); a pulling plate (705) is installed at the end of the nozzle (704); a pulling rope (706) is fixedly connected to the end of the pulling plate (705); and the end of the pulling rope (706) is connected to (305).

8. The high-efficiency and high-power-density power supply according to claim 7, characterized in that: The burying mechanism comprises a connecting pipe (8); an inflatable air cushion (801) is fixedly connected to the end of the connecting pipe (8); and the inflatable air cushion (801) is located inside the sand box (7).

9. The high-efficiency and high-power-density power supply according to claim 2, characterized in that: The fan blades (207) are provided with multiple groups on the outside.

10. The high-efficiency and high-power-density power supply according to claim 2, characterized in that: The interior of the heat conducting block (202) is filled with paraffin.

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