A maintenance system for switching power supply equipment for communication base stations

Abstract

The present invention discloses a maintenance system for a switching power supply device for a communication base station, which relates to the technical field of maintenance of switching power supply devices, and solves the problem of temperature transfer caused by continuous excessive temperature, which in turn causes multiple lithium batteries to catch fire. A maintenance system for a switching power supply device for a communication base station comprises a power supply device housing, the rear end of the power supply device housing is fixedly connected to a battery reserved cavity shell, and the rear end of the battery reserved cavity shell is fixedly connected to a maintenance device housing. The first connecting plate in the present invention will quickly melt and break due to the high temperature, and because the overall battery support mechanism is tilted to the rear side, the overall lithium battery power source tilts backward with gravity, and the overall battery support mechanism is arranged so that the lithium battery power source can automatically fall and be isolated, thereby preventing the high-temperature lithium battery power source from affecting other battery power sources.

Description

Technical Field

[0001] The invention relates to the technical field of switch power supply equipment maintenance, in particular to a maintenance system for switch power supply equipment used in a communication base station. Background Art

[0002] The power supply equipment maintenance system is a comprehensive management system that aims to improve the standardization, process and information level of daily operation and maintenance of power equipment. The system realizes rapid fault location and recovery, thereby enhancing the support for operation and maintenance business and improving the service level of equipment guarantee. Its core lies in optimizing resource allocation, reducing operation and maintenance costs, and improving the stability and security of power supply.

[0003] The switching power supply used in communication base stations is generally composed of a lithium battery power supply. The charging circuit of the lithium battery power supply may age, or the charging voltage in the charging circuit may not match. These may cause the lithium battery to overheat or catch fire. The maintenance system will monitor the status of the lithium battery power supply in real time and handle the high-temperature or catching fire lithium batteries.

[0004] However, the existing maintenance system may not handle lithium batteries in a timely manner, resulting in the phenomenon of temperature transfer due to continuous high temperature, which in turn causes multiple lithium batteries to catch fire; and the existing cooling and fire extinguishing materials generally use liquid-based materials, and the liquid fire extinguishing materials will damage the entire lithium battery, making the lithium battery unable to be recycled and reused. Therefore, it does not meet the existing needs. In this regard, we propose a maintenance system for switching power supply equipment for communication base stations. Summary of the invention

[0005] The purpose of the present invention is to provide a maintenance system for a switching power supply equipment for a communication base station, so as to solve the problem mentioned in the above background technology that the existing maintenance system may not handle the lithium battery in a timely manner, and the temperature may continue to be too high, causing temperature transfer, and then causing multiple lithium batteries to catch fire; and the existing cooling and fire extinguishing materials generally use liquid-based materials, and the liquid fire extinguishing materials will damage the entire lithium battery, resulting in the inability to recycle and reuse the lithium battery.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: A maintenance system for a switching power supply device for a communication base station, comprising a power supply device housing, a battery reserved cavity housing being fixedly connected to the rear end of the power supply device housing, a maintenance device housing being fixedly connected to the rear end of the battery reserved cavity housing, and a pressing mechanism being fixedly connected to the lower ends of the maintenance device housing and the battery reserved cavity housing;

[0007] A plurality of battery support mechanisms are arranged vertically inside the power supply device housing, and the battery support mechanisms are arranged obliquely toward the rear side of the power supply device housing, and the battery support mechanisms carry lithium battery power sources;

[0008] A carbon dioxide generating mechanism is provided on the upper movable support inside the housing of the maintenance equipment, and a liquid nitrogen tank is provided on the lower support inside the housing of the maintenance equipment. Both ends of one side of the liquid nitrogen tank are connected with connecting pipes, and the lower end of the connecting pipe is connected with a passive switch mechanism. The lower end of the passive switch mechanism is connected with a first air outlet pipe, and the first air outlet pipe extends to the interior of the pressing mechanism.

[0009] Preferably, the battery support mechanism comprises two heat conducting plates fixedly connected to the inside of the power supply device housing, one side of the heat conducting plate is plugged with a first connecting plate, the rear ends of the two first connecting plates are fixedly connected to a rear supporting plate, the upper end of the rear supporting plate is fixedly connected to an arc plate, and an upper clamping plate is connected between the upper end surfaces of the two first connecting plates;

[0010] A plurality of long slots are arranged on one end surface of the first connecting plate, a plurality of transverse plug-in plates are fixedly connected to one side of the heat conducting plate, and the transverse plug-in plates on one side of the heat conducting plate are inserted into the long slots.

[0011] Preferably, the pressing mechanism includes a placement cavity connected to the lower end of the battery reserved cavity shell, and the four end corners of the bottom end of the placement cavity are connected to support springs, the lower end of the support spring is connected to the bottom end of the maintenance equipment shell, the upper ends of the four support springs are connected to a movable plate, and both sides of the upper end of the movable plate are fixedly connected to a passive lifting mechanism, and the passive lifting mechanism extends to the top of the inside of the maintenance equipment shell.

[0012] Preferably, the passive switching mechanism includes a connecting tube fixedly connected between the first air outlet pipe and the connecting tube, the upper end of the connecting tube is connected to a blocking plate, the blocking plate is located on the lower side of the interface between the connecting tube and the connecting tube, the bottom end of the connecting tube is fixedly connected to a second plug-in sleeve, an inner movable rod is vertically movable through the middle of the bottom end of the second plug-in sleeve, the upper end of the inner movable rod is fixedly connected to an inner movable column, long springs are connected around the bottom end surface of the inner movable column, and the lower end of the long spring is connected to the bottom end of the connecting tube.

[0013] Preferably, the lower end of the inner movable column is in a spherical structure, a spherical slot is provided in the middle of the blocking plate, and the spherical structure at the lower end of the inner movable column is squeezed into the spherical slot in the middle of the blocking plate.

[0014] Preferably, the carbon dioxide generating mechanism includes a liquid storage box inserted on the upper side of the interior of the maintenance equipment housing, a side connecting plate is fixedly connected to one side of the interior of the liquid storage box, an arc-shaped spring sheet is fixedly connected to the upper end of the side connecting plate, a second connecting plate is fixedly connected to one side end of the side connecting plate, a positioning plate is fixedly connected to the upper end of one side of the second connecting plate, and a storage ball is clamped between the positioning plate and the arc-shaped spring sheet.

[0015] Preferably, a first insert sleeve is provided on the other side of the liquid storage box, a second air outlet pipe is inserted in the first insert sleeve, a one-way valve is connected to the second air outlet pipe, and the second air outlet pipe is fixedly connected to the inner wall of the maintenance equipment housing.

[0016] Preferably, the passive lifting mechanism includes a first movable column fixedly connected to the upper end of the movable plate, and the upper and lower ends of the first movable column are fixedly connected to side movable blocks. A guide rod is vertically movable through one side of the side movable block, and the lower end of the guide rod is fixedly connected to the inner wall of the bottom end of the inner shell of the maintenance equipment.

[0017] Preferably, a pressing plate is fixedly connected to one side of the side movable block located at the upper end of the first movable column, and the pressing plate is pressed on the upper end of the inner movable column.

[0018] Preferably, the upper end of the first movable column is fixedly connected to the second movable column, the upper end of the second movable column is fixedly connected to the third movable column, the third movable column is configured as a U-shaped structure, and one end of the third movable column is snap-connected to the positioning plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The materials of the first connecting plate and the rear supporting plate in the battery supporting mechanism of the present invention are made of polypropylene, and the heat conducting plate is made of a metal material with strong thermal conductivity. When the temperature of the entire lithium battery power source is abnormally high and exceeds 110 degrees Celsius, the heat conducting plate continuously transfers heat to the surface of the first connecting plate, and the first connecting plate will quickly melt and break due to the high temperature. Moreover, since the entire battery supporting mechanism is tilted backward, the entire lithium battery power source tilts backward with gravity, and the lithium battery power source falls into the battery reserved cavity shell, and finally the lithium battery power source falls on the upper end of the movable plate. Then, the entire battery supporting mechanism is arranged so that the lithium battery power source can automatically fall and be isolated, thereby preventing the high-temperature lithium battery power source from affecting other battery power sources;

[0021] 2. In the present invention, the surface of the storage ball is made of a basket net, and the interior of the storage ball is filled with limestone powder. The limestone powder and the acidic liquid are mixed to generate a large amount of carbon dioxide gas. The carbon dioxide gas flows downward through the second outlet pipe, and the carbon dioxide gas has a flame retardant effect on the lithium battery power supply, avoiding the spontaneous combustion caused by the excessive temperature of the lithium battery power supply. The nitrogen and carbon dioxide gases replace the existing liquids for cooling and extinguishing fires, thereby avoiding the scrapping of the lithium battery power supply caused by contact with liquids such as water, and the entire lithium battery power supply can be recycled under the protection of the nitrogen and carbon dioxide gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall exterior of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the whole interior of the present invention;

[0024] Figure 3 For the present invention Figure 2 A magnified view of the three-dimensional structure at center A;

[0025] Figure 4 For the present invention Figure 2 A magnified view of the three-dimensional structure at B in the middle;

[0026] Figure 5 It is a side cutaway view of the overall passive lifting mechanism of the present invention in a non-lifting state;

[0027] Figure 6 For the present invention Figure 5 The enlarged section view at C in the middle;

[0028] Figure 7 For the present invention Figure 5 Sectional view at D in the middle;

[0029] Figure 8 It is a side cutaway view of the overall passive lifting mechanism of the present invention after it is lifted;

[0030] Fig. 9 For the present invention Figure 8 The enlarged section view at E in the middle;

[0031] Fig.10 For the present invention Figure 8 Enlarged section view at F in the middle.

[0032] In the figure: 1. Maintenance equipment housing; 2. Power supply equipment housing; 3. Battery support mechanism; 301. First connecting plate; 302. Heat conducting plate; 303. Long slot; 304. Upper clamping plate; 305. Rear support plate; 306. Arc plate; 4. Pressing mechanism; 401. Movable plate; 402. Support spring; 403. Placement cavity; 5. Carbon dioxide generation mechanism; 501. Liquid storage box; 502. Positioning plate; 503. Second connecting plate; 504. Side connecting plate; 505. Arc spring; 506. First plug-in sleeve; 507 , storage ball; 6, liquid nitrogen tank; 7, passive lifting mechanism; 701, first movable column; 702, second movable column; 703, third movable column; 704, side movable block; 705, pressing plate; 706, guide rod; 8, passive switch mechanism; 801, connecting tube; 802, inner movable column; 803, long spring; 804, inner movable rod; 805, second plug-in sleeve; 806, blocking plate; 9, lithium battery power supply; 10, first air outlet pipe; 11, connecting pipe; 12, battery reserved cavity shell; 13, second air outlet pipe; 14, one-way valve. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] See also Figures 1 to 10 , an embodiment provided by the present invention: a maintenance system for a switching power supply device for a communication base station, comprising a power supply device housing 2, a battery reserved cavity shell 12 being fixedly connected to the rear end of the power supply device housing 2, a maintenance device housing 1 being fixedly connected to the rear end of the battery reserved cavity shell 12, a pressing mechanism 4 being fixedly connected to the lower ends of the maintenance device housing 1 and the battery reserved cavity shell 12, a plurality of battery support mechanisms 3 being arranged vertically inside the power supply device housing 2, the battery support mechanism 3 being inclined toward the rear side of the inside of the power supply device housing 2, and a lithium battery power source 9 being carried in the battery support mechanism 3;

[0035] The upper movable support inside the maintenance equipment housing 1 is provided with a carbon dioxide generating mechanism 5, and the lower support inside the maintenance equipment housing 1 is provided with a liquid nitrogen tank 6. Both ends of one side of the liquid nitrogen tank 6 are connected with connecting pipes 11, and the lower end of the connecting pipe 11 is connected with a passive switch mechanism 8. The lower end of the passive switch mechanism 8 is connected with a first air outlet pipe 10, and the first air outlet pipe 10 extends to the inside of the pressing mechanism 4;

[0036] The battery support mechanism 3 includes two heat conducting plates 302 fixedly connected to the inside of the power supply equipment housing 2, one side of the heat conducting plate 302 is plugged with a first connecting plate 301, the rear ends of the two first connecting plates 301 are fixedly connected to a rear support plate 305, the upper end of the rear support plate 305 is fixedly connected to an arc plate 306, an upper clamping plate 304 is connected between the upper end surfaces of the two first connecting plates 301, a plurality of long slots 303 are provided on one end surface of the first connecting plate 301, a plurality of horizontal plug plates are fixedly connected to one side of the heat conducting plate 302, and the horizontal plug plate on one side of the heat conducting plate 302 is plugged into the long slot 303, wherein the setting of the long slot 303 and the horizontal plug plate of the heat conducting plate 302 increases the contact area between the first connecting plate 301 and the heat conducting plate 302, thereby increasing the heat transfer speed between the long slot 303 and the heat conducting plate 302.

[0037] The pressing mechanism 4 includes a placement cavity 403 connected to the lower end of the battery reserved cavity shell 12, and the four end corners of the bottom end of the placement cavity 403 are connected to support springs 402, the lower ends of the support springs 402 are connected to the bottom end of the maintenance device shell 1, and the upper ends of the four support springs 402 are connected to a movable plate 401, and both sides of the upper end of the movable plate 401 are fixedly connected to a passive lifting mechanism 7, and the passive lifting mechanism 7 extends to the top of the maintenance device shell 1;

[0038] The passive switch mechanism 8 includes a connecting tube 801 fixedly connected between the first air outlet pipe 10 and the connecting tube 11, the upper end of the connecting tube 801 is connected to a blocking plate 806, the blocking plate 806 is located at the lower side of the interface between the connecting tube 801 and the connecting tube 11, the bottom end of the connecting tube 801 is fixedly connected to a second plug-in sleeve 805, the middle of the bottom end of the second plug-in sleeve 805 is vertically movably penetrated by an inner movable rod 804, the upper end of the inner movable rod 804 is fixedly connected to an inner movable column 802, and the bottom end surface of the inner movable column 802 is connected to a long elastic Spring 803, the lower end of the long spring 803 is connected to the bottom end of the inside of the connecting tube 801, and the setting of the second plug-in sleeve 805 allows the inner movable rod 804 to be inserted therein, and the plug-in activity cooperation between the second plug-in sleeve 805 and the inner movable rod 804 greatly improves the stability of the vertical activity of the inner movable rod 804, wherein the second plug-in sleeve 805 and the inner movable rod 804 are sealed and cooperated, and the inner movable column 802 and the blocking plate 806 at the upper end of the inside of the connecting tube 801 are sealed and cooperated, and this setting makes the inside of the connecting tube 801 in a sealed state.

[0039] The lower end of the inner movable column 802 is in a spherical structure, and a spherical slot is provided in the middle of the blocking plate 806. The spherical structure at the lower end of the inner movable column 802 is squeezed into the spherical slot in the middle of the blocking plate 806. The carbon dioxide generating mechanism 5 includes a liquid storage tank 501 inserted into the upper side of the maintenance equipment housing 1, and a side connecting plate 504 is fixedly connected to one side of the liquid storage tank 501, and an arc-shaped spring plate 505 is fixedly connected to the upper end of the side connecting plate 504. A second connecting plate 503 is fixedly connected to one side end of the side connecting plate 504, and a positioning plate 502 is fixedly connected to the upper end of one side of the second connecting plate 503. A storage ball 507 is clamped between the positioning plate 502 and the arc-shaped spring plate 505.

[0040] A first plug-in sleeve 506 is provided on the other side of the liquid storage tank 501, and a second air outlet pipe 13 is inserted in the first plug-in sleeve 506, and a one-way valve 14 is connected to the second air outlet pipe 13. The second air outlet pipe 13 is fixedly connected to the inner wall of the maintenance equipment housing 1, and the outlet at the bottom end of the second air outlet pipe 13 is located on the upper side of the movable plate 401. The liquid storage tank 501 is filled with an acidic solution, wherein the height of the first plug-in sleeve 506 is higher than the liquid level inside the liquid storage tank 501 to prevent the liquid inside the liquid storage tank 501 from leaking out. At the same time, the first plug-in sleeve 506 can be plug-connected with the second air outlet pipe 13, which can facilitate the replacement of a new carbon dioxide generating mechanism 5. This arrangement enables the entire carbon dioxide generating mechanism 5 to be plugged into the upper side of the maintenance equipment housing 1. When the solution inside the carbon dioxide generating mechanism 5 and the limestone powder react, it is disassembled and replaced with a new carbon dioxide generating mechanism 5;

[0041] The passive lifting mechanism 7 includes a first movable column 701 fixedly connected to the upper end of the movable plate 401, and the upper and lower ends of the first movable column 701 are fixedly connected to side movable blocks 704. A guide rod 706 is provided on one side of the side movable block 704 for vertical movement. The lower end of the guide rod 706 is fixedly connected to the inner wall of the bottom end of the maintenance equipment housing 1, and a through hole is provided on the side movable block 704. The through hole on the side movable block 704 and the guide rod 706 are movably matched. The setting of the guide rod 706 makes the vertical movement of the overall passive lifting mechanism 7 stable.

[0042] A side movable block 704 located at the upper end of the first movable column 701 is fixedly connected to a pressing plate 705 on one side, and the pressing plate 705 is pressed on the upper end of the inner movable column 802. The upper end of the first movable column 701 is fixedly connected to the second movable column 702, and the upper end of the second movable column 702 is fixedly connected to the third movable column 703. The third movable column 703 is set as a U-shaped structure, and one end of the third movable column 703 is connected to the positioning plate 502 by clamping.

[0043] Before the overall maintenance system fails, that is, the lithium battery power source 9 therein does not catch fire due to high temperature, the long spring 803 in the passive switch mechanism 8 has an upward stretching elastic force, and the long spring 803 can push the inner movable column 802 upward, and the spherical structure at the lower end of the inner movable column 802 and the spherical slot hole in the middle of the blocking plate 806 are squeezed and matched, so that the upper side and the lower side of the connecting tube 801 are disconnected, and the liquid nitrogen in the connecting tube 11 cannot flow downward through the overall passive switch mechanism 8, thereby preventing the liquid nitrogen in the liquid nitrogen tank 6 from flowing out to the pressing mechanism 4 under normal conditions;

[0044] The positioning plate 502 is set to a lying V-shaped structure, and the arc spring piece 505 on the upper end of the side connecting plate 504 is made of elastic material. The clamping connection between the arc spring piece 505 and the positioning plate 502 prevents the storage ball 507 from entering the liquid storage box 501 under normal conditions. The bottom end of the positioning plate 502 and the side connecting plate 504 are fixedly connected by the second connecting plate 503, and the second connecting plate 503 is made of fragile material. The positioning plate 502 and the side connecting plate 504 are respectively made of metal materials. At this time, the state of the passive switch mechanism 8 and the carbon dioxide generating mechanism 5 is changed. Figure 6 to Figure 7 shown.

[0045] The first connecting plate 301 and the rear supporting plate 305 in the battery supporting mechanism 3 are made of polyethylene, and the heat conducting plate 302 is made of a metal material with strong thermal conductivity. When the operating temperature of the overall lithium battery power source 9 exceeds 110 degrees Celsius, it is the abnormal operating temperature of the lithium battery power source 9. The heat conducting plate 302 continuously transfers heat to the surface of the first connecting plate 301. The first connecting plate 301 will quickly melt and break due to the high temperature. Moreover, since the overall battery supporting mechanism 3 is tilted backward, the overall lithium battery power source 9 tilts backward with gravity, and the lithium battery power source 9 falls into the battery reserved cavity shell 12, and finally the lithium battery power source 9 falls on the upper end of the movable plate 401.

[0046] The gravity of the lithium battery power source 9 is greater than the elastic force of the four supporting springs 402 extending upward. After the lithium battery power source 9 falls onto the movable plate 401, the movable plate 401 will be pressed downward along with the lithium battery power source 9, which makes the four supporting springs 402 move downward, and the movable plate 401 drives the entire passive lifting mechanism 7 to move downward, wherein the first movable column 701 drives the pressing plate 705 on one side of the upper end to squeeze the inner movable column 802, which makes the inner movable column 802 squeeze the stretching elastic force of the long spring 803 at the lower end, and the spherical structure and the blocking plate at the lower end of the inner movable column 802 The spherical hollow grooves in the middle of 806 are separated. At this time, the nitrogen inside the liquid nitrogen tank 6 flows into the connecting tube 801 along the connecting tube 11, and then sprays out from the inside of the connecting tube 801 through the first outlet pipe 10, wherein the outlet of the first outlet pipe 10 is located above the movable plate 401 in the placement cavity 403, and the nitrogen will cool down the lithium battery power source 9 with a temperature higher than 110 degrees Celsius at the upper end of the movable plate 401, wherein the liquid nitrogen in the liquid nitrogen tank 6 can be emptied at one time, and the liquid nitrogen emptied at one time can efficiently cool down one or more lithium battery power sources 9 with a temperature higher than 110 degrees Celsius;

[0047] The second movable column 702 will also drive the third movable column 703 at its upper end to move downward, and the third movable column 703 will drive the positioning plate 502 therein to move downward, wherein the positioning plate 502 will squeeze the second connecting plate 503 during the downward movement, and the second connecting plate 503 will break during the squeezing process, wherein the storage ball 507 will first move laterally to one side of the arc-shaped spring piece 505 during the squeezing process, and after the positioning plate 502 and the arc-shaped spring piece 505 are completely staggered, the elastic force of the arc-shaped spring piece 505 will bounce the storage ball 507 to the side away from the arc-shaped spring piece 505, thereby causing the storage ball 507 to enter the acidic liquid inside the liquid storage box 501, and then the passive switch mechanism 8 and the carbon dioxide generation mechanism 5 are in the state of Figures 8 to 10 As shown;

[0048] The surface of the storage ball 507 is made of a basket net, and the interior of the storage ball 507 is filled with limestone powder. The limestone powder and the acidic liquid are mixed to generate a large amount of carbon dioxide gas. The carbon dioxide gas flows downward through the second outlet pipe 13, and the carbon dioxide gas has a flame retardant effect on the lithium battery power supply 9, thereby avoiding the spontaneous combustion of the lithium battery power supply 9 caused by excessive temperature. The nitrogen and carbon dioxide gases replace the existing liquids for cooling and extinguishing fires, thereby avoiding the scrapping of the lithium battery power supply 9 caused by contact with liquids such as water, and the entire lithium battery power supply 9 can be recycled under the protection of the nitrogen and carbon dioxide gases.

[0049] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A maintenance system for a switching power supply device for a communication base station, comprising a power supply device housing (2), characterized in that: The rear end of the power supply device housing (2) is fixedly connected to a battery reserved cavity housing (12), the rear end of the battery reserved cavity housing (12) is fixedly connected to a maintenance device housing (1), and the lower ends of the maintenance device housing (1) and the battery reserved cavity housing (12) are fixedly connected to a pressing mechanism (4); A plurality of battery support mechanisms (3) are arranged vertically inside the power supply device housing (2), the battery support mechanisms (3) are arranged obliquely toward the rear side of the power supply device housing (2), and a lithium battery power source (9) is carried inside the battery support mechanisms (3); The upper movable support inside the housing (1) of the maintenance device is provided with a carbon dioxide generating mechanism (5), the lower support inside the housing (1) of the maintenance device is provided with a liquid nitrogen tank (6), both ends of one side of the liquid nitrogen tank (6) are connected to connecting pipes (11), the lower end of the connecting pipe (11) is connected to a passive switch mechanism (8), the lower end of the passive switch mechanism (8) is connected to a first air outlet pipe (10), and the first air outlet pipe (10) extends to the interior of the pressing mechanism (4); The pressing mechanism (4) comprises a placement cavity (403) connected to the lower end of the battery reserved cavity shell (12); four end corners of the bottom end of the placement cavity (403) are connected to support springs (402); the lower ends of the support springs (402) are connected to the bottom end of the maintenance device shell (1); the upper ends of the four support springs (402) are connected to a movable plate (401); both sides of the upper end of the movable plate (401) are fixedly connected to a passive lifting mechanism (7); the passive lifting mechanism (7) extends to the top of the maintenance device shell (1); The passive switch mechanism (8) comprises a connecting tube (801) fixedly connected between the first air outlet pipe (10) and the connecting tube (11); the upper end of the connecting tube (801) is connected to a blocking plate (806); the blocking plate (806) is located at the lower side of the interface between the connecting tube (801) and the connecting tube (11); the lower end of the connecting tube (801) is fixedly connected to a second plug-in sleeve (805); an inner movable rod (804) is vertically movable through the middle of the lower end of the second plug-in sleeve (805); the upper end of the inner movable rod (804) is fixedly connected to an inner movable column (802); the bottom end surface of the inner movable column (802) is connected to a long spring (803); the lower end of the long spring (803) is connected to the lower end of the connecting tube (801); The carbon dioxide generating mechanism (5) comprises a liquid storage box (501) inserted into the upper side of the maintenance equipment housing (1); a side connecting plate (504) is fixedly connected to one side of the liquid storage box (501); an arc-shaped spring sheet (505) is fixedly connected to the upper end of the side connecting plate (504); a second connecting plate (503) is fixedly connected to one side end of the side connecting plate (504); a positioning plate (502) is fixedly connected to the upper end of one side of the second connecting plate (503); and a storage ball (507) is clamped between the positioning plate (502) and the arc-shaped spring sheet (505); The passive lifting mechanism (7) comprises a first movable column (701) fixedly connected to the upper end of the movable plate (401), the upper and lower ends of the first movable column (701) are fixedly connected to side movable blocks (704), a guide rod (706) is vertically movable through one side of the side movable block (704), and the lower end of the guide rod (706) is fixedly connected to the inner wall of the bottom end of the maintenance equipment housing (1); A pressing plate (705) is fixedly connected to one side of the side movable block (704) located at the upper end of the first movable column (701), and the pressing plate (705) is pressed on the upper end of the inner movable column (802); The upper end of the first movable column (701) is fixedly connected to the second movable column (702), the upper end of the second movable column (702) is fixedly connected to the third movable column (703), the third movable column (703) is set as a U-shaped structure, and one end of the third movable column (703) is snap-connected to the positioning plate (502).

2. A maintenance system for a switching power supply device for a communication base station according to claim 1, characterized in that: The battery support mechanism (3) comprises two heat conducting plates (302) fixedly connected to the inside of the power supply device housing (2); one side of the heat conducting plate (302) is plugged with a first connecting plate (301); the rear ends of the two first connecting plates (301) are fixedly connected to a rear supporting plate (305); the upper ends of the rear supporting plates (305) are fixedly connected to an arc-shaped plate (306); and an upper clamping plate (304) is connected between the upper end surfaces of the two first connecting plates (301); A plurality of long slots (303) are provided on one end surface of the first connecting plate (301), a plurality of transverse plug-in plates are fixedly connected to one side of the heat conducting plate (302), and the transverse plug-in plates on one side of the heat conducting plate (302) are inserted into the long slots (303).

3. A maintenance system for a switching power supply device for a communication base station according to claim 2, characterized in that: The lower end of the inner movable column (802) is in a spherical structure, and a spherical slot hole is provided in the middle of the blocking plate (806). The spherical structure at the lower end of the inner movable column (802) is squeezed into the spherical slot hole in the middle of the blocking plate (806).

4. A maintenance system for a switching power supply device for a communication base station according to claim 3, characterized in that: A first plug-in sleeve (506) is provided on the other side of the interior of the liquid storage box (501), a second air outlet pipe (13) is inserted into the first plug-in sleeve (506), a one-way valve (14) is connected to the second air outlet pipe (13), and the second air outlet pipe (13) is fixedly connected to the inner wall of the maintenance equipment housing (1).

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