A security power supply with temperature monitoring function

Abstract

The present invention discloses a security power supply with temperature monitoring function, belonging to the field of security power supplies. A security power supply with temperature monitoring function includes a protective housing, a temperature display, a protective inner housing, a gas exchange box, a heat conduction part, and a power output part; the inside of the protective housing is hollow and one pair of opposite sides communicate with the outside, the temperature display is installed on the other side outside the protective housing, the protective inner housing is installed inside the protective housing, one end of the protective inner housing is connected to the power output part, and the other end passes through the protective housing and is connected to an external power supply device, the heat conduction part is arranged on the outer end face of the protective housing and this end face is perpendicular to the temperature display. By setting the temperature display and the temperature conductor, the real-time temperature of the security power supply can be displayed on the temperature display in real time, so as to achieve the purpose of temperature monitoring of the security power supply.

Description

Technical Field

[0001] The invention relates to the field of security power supplies, in particular to a security power supply with a temperature monitoring function. Background Art

[0002] The security industry is upgrading from the traditional analog era to the digital security era, from IT, IP, integration, high definition, and intelligence. The security system has experienced a growth process from a few devices and a few wires connected to local networking to multi-level networking and remote management. Today's security system is more than just a simple video surveillance system. The security system has expanded into a comprehensive and diversified development pattern that can integrate business management, data transmission, video, alarm, control, and storage in various industries. The security industry has entered the era of big security.

[0003] Traditional security devices, such as security cameras, require a security power supply for power supply operation. Traditional security power supplies do not have temperature monitoring capabilities, and do not have local heat dissipation capabilities for local abnormal temperature rise when the security power supply is in use. At the same time, they do not have emergency cooling capabilities when the overall temperature of the security power supply is too high. Therefore, traditional security power supplies have poor temperature monitoring capabilities. Summary of the invention

[0004] The purpose of the present invention is to provide a security power supply with temperature monitoring function to solve the problem that the traditional security power supply mentioned in the above background technology does not have temperature monitoring capability and cannot provide emergency cooling in time when the power supply is abnormally heated locally or as a whole, and has poor temperature monitoring capability.

[0005] To achieve the above object, the present invention provides the following technical solution: A security power supply with temperature monitoring function, comprising a protective housing, a temperature display, a protective inner housing, a gas exchange box, a heat conduction part, and a power output part; the inside of the protective housing is hollow and one pair of opposite sides communicate with the outside world, the temperature display is installed on the other side of the outside of the protective housing, the protective inner housing is installed inside the protective housing, one end of the protective inner housing is connected to the power output part, and the other end passes through the protective housing and is connected to an external power supply device, the heat conduction part is arranged on the outer end face of the protective housing and this end face is perpendicular to the temperature display; the gas exchange box is slidably arranged inside the protective housing, the gas exchange box is located on the end face opposite to the temperature display, the space passed by the gas exchange box during sliding is a recovery channel, an elastic part is arranged between the gas exchange box and the recovery channel, the gas exchange box slides in the recovery channel through the elastic part, induction limiting devices are symmetrically arranged on both sides of one end of the recovery channel inside the protective housing, the induction limiting device comprises a temperature sensing component and a limiting component, the temperature sensing component is in direct contact with the protective inner housing, the temperature sensing component is electrically connected to the temperature display, and is used for sensing heat and driving the limiting component to act, and the limiting component is used for limiting the sliding of the gas exchange box in the recovery channel; an exhaust channel is arranged in the gas exchange box along the extending direction of the internal space of the protective housing, and an opening is arranged on the side of the exhaust channel facing the inside of the protective housing.

[0006] Preferably, the heat conduction part comprises heat dissipation fins, and the heat dissipation fins are fixed between the end faces of the protective housing where the temperature display and the gas exchange box are installed; one side of the heat dissipation fins communicates with the internal space of the protective housing, and the other side communicates with the external space.

[0007] Preferably, the power output part comprises output power connectors, at least three groups of output power connectors are provided, the output power connectors are fixedly installed side by side at one end of the protective inner housing, and the output power connectors are located outside the protective housing.

[0008] Preferably, the temperature sensing component comprises a limiting box, a temperature conductor, a thermal expansion material, a return spring, and a sliding sealing plate; the limiting box is arranged vertically and fixedly connected to the inner end wall of the protective housing, the temperature conductor is arranged between the protective inner housing and the limiting box, one end face of the temperature conductor is in contact with the protective inner housing and the other end face is fixedly connected to the limiting box, the sliding sealing plate is slidably arranged in the limiting box, the return spring is arranged on the side of the sliding space of the sliding sealing plate away from the temperature conductor, both ends of the return spring are respectively abutted against the sliding sealing plate and the limiting box, and the thermal expansion material is arranged on the side of the sliding space of the sliding sealing plate away from the temperature conductor; a total of four thermal expansion materials are provided, and the four thermal expansion materials are symmetrically arranged about the return spring along the extending direction of the limiting box.

[0009] Preferably, the limiting component includes a limiting plate, a pneumatic cavity, and a safety component. The pneumatic cavity is in sliding communication with the space where the sliding sealing plate slides, and the pneumatic cavity is located on the side of the sliding sealing plate away from the temperature conductor. One end of the limiting plate is slidably arranged in the pneumatic cavity, and the other end of the limiting plate extends into the protective housing and reaches the opening of the recovery channel. The connection between the sliding sealing plate and the limiting box is sealed, and the connection between the limiting plate and the pneumatic cavity is sealed; the safety component is arranged above the limiting box to limit the movement of the gas exchange box.

[0010] Preferably, four gas exchange boxes are arranged horizontally. Dust-proof nets are fixedly installed at both ends of the exhaust channels of the gas exchange boxes. A support column is vertically inserted through the middle of the dust-proof net, and the dust-proof net is fixedly connected to the support column. Both ends of the support column are in sliding contact with the gas exchange box; the safety component is only arranged at the three gas exchange boxes close to the power output part.

[0011] Preferably, the elastic part includes a fixing plate, a spring, and a sliding groove. The sliding groove is arranged on the end face of the recovery channel away from the heat sink. The fixing plate is slidably arranged in the sliding groove, and the fixing plate is fixedly connected to the end face of the gas exchange box close to the sliding groove. The spring is arranged on the side of the fixing plate away from the inner protective shell, and the spring abuts against the protective housing and the fixing plate.

[0012] Preferably, the temperature sensing component further includes a joint protection plate, a turning plate, an installation cavity, an installation plate, and a driving part; the joint protection plate is fixedly connected to the protective housing. The joint protection plate is located on the side of the protective housing close to the power output part, and the joint protection plate is arranged in an L shape; the turning plate is vertically hinged to the protective housing, and the turning plate is symmetrically arranged with the vertical part of the joint protection plate. The turning plate is in sliding contact with the horizontal part of the joint protection plate; an installation cavity is vertically arranged inside the turning plate, and the installation cavity extends towards or away from the joint protection plate. An installation plate is fixedly installed in the installation cavity, and a rotating fan is installed on the installation plate; the driving part drives the turning plate to rotate along the hinge.

[0013] Preferably, the driving part includes a driving motor and a driving shaft. The driving motor is fixedly connected to the protective housing. The driving motor is located at the hinge of the turning plate and the protective housing. The driving shaft is power-connected to the side of the driving motor close to the hinge of the turning plate and the protective housing; the driving shaft passes through the hinge of the protective housing and the turning plate and is rotatably connected to the protective housing and fixedly connected to the turning plate. The driving motor is electrically connected to the conductive part; the driving part further includes a movable contact and a fixed contact. The movable contact and the fixed contact are arranged opposite to each other, and the movable contact is fixedly connected to the gas exchange box. The fixed contact is fixedly connected to the end face of the recovery channel away from the internal space of the protective housing. When all the movable contacts installed on the gas exchange boxes are in contact with the fixed contacts on the recovery channel, the circuit of the driving part is connected.

[0014] Preferably, the insurance component includes a pull rope, a rotating wheel, an insurance strip, a connecting wheel and a connecting shaft. The connecting wheel is arranged above the limit box and rotatably connected to one end face of the side where the limit box is installed in the protection shell. The insurance strip is fixed on the outer curved surface of the connecting wheel. The connecting shaft is rotatably arranged in the protection shell and fixedly connected to the axis of the connecting wheel. The rotating wheel is rotatably arranged inside the protection shell and fixedly connected to the connecting shaft. One end of the pull rope is wound around the outer end face of the rotating wheel, and the other end of the pull rope extends into the sliding groove on the side farthest from the power output part and is fixedly connected to one end face of the side of the gas exchange box connected with an elastic spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. By setting a temperature display and a temperature conductor, the real-time temperature of the security power supply can be displayed on the temperature display in real time, so as to achieve the purpose of temperature monitoring of the security power supply.

[0017] 2. A gas exchange box is set. When local overheating occurs inside the security power supply, due to the self-expansion property of the thermal expansion material, the restriction on the gas exchange box is released, so that the high-temperature gas at the overheated part inside the security power supply can be exchanged with the low-temperature gas outside, thus playing a role in cooling and heat dissipation.

[0018] 3. When all the gas exchange boxes are opened, the driving motor drives the turning plate to rotate, and at the same time the rotating fan rotates, so as to increase the gas exchange speed at the gas exchange box, thereby further reducing the internal temperature of the security power supply and improving the heat dissipation effect when the security power supply is at a high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the present invention rotated 180 degrees horizontally;

[0021] Figure 3 is Figure 2 an enlarged structural view of part A;

[0022] Figure 4 is a structural sectional view of the driving part of the present invention;

[0023] Figure 5 is a schematic structural diagram of the gas exchange box of the present invention;

[0024] Figure 6 is Figure 5 an enlarged structural view of part B

[0025] Figure 7 is a schematic structural diagram of the elastic part of the present invention;

[0026] Figure 8 isFigure 7 Enlarged view of the structure at C;

[0027] Figure 9 For Figure 7 Enlarged view of the structure at D;

[0028] Figure 10 Schematic diagram of the structure of the gas exchange box of the present invention when it is closed;

[0029] Figure 11 Schematic diagram of the connection relationship between the gas exchange box of the present invention and the limiting component when it is closed;

[0030] Figure 12 Schematic diagram of the structure of the insurance component of the present invention.

[0031] In the figure: induction limiting device a; protective housing 10; temperature display 11; heat sink 12; protective inner housing 13; output power connector 14; connector protection plate 15; gas exchange box 20; recovery channel 21; fixing plate 22; elastic spring 23; sliding groove 24; dust-proof net 25; drive motor 30; flip plate 31; installation cavity 32; installation plate 33; drive shaft 35; limiting box 40; temperature conductor 41; limiting plate 42; air pressure cavity 43; thermally expandable material 44; return spring 45; sliding sealing plate 46; movable contact 50; fixed contact 51; support rod 60; pull rope 61; runner 62; insurance strip 63; connecting wheel 64; connecting shaft 65. Specific embodiments

[0032] Example 1:

[0033] Please refer to Figure 1-12, the present invention provides a technical solution: a security power supply with temperature monitoring function, including a protective shell 10, a temperature display 11, a protective inner shell 13, a gas exchange box 20, a heat conduction part and a power output part; the inside of the protective shell 10 is hollow and one pair of opposite sides communicate with the outside world, the temperature display 11 is installed on the other side of the outside of the protective shell 10, the protective inner shell 13 is installed inside the protective shell 10, one end of the protective inner shell 13 is connected to the power output part, and the other end passes through the protective shell 10 and is connected to an external power supply device, the heat conduction part is arranged on the outer end face of the protective shell 10 and this end face is perpendicular to the temperature display 11; the gas exchange box 20 is slidably arranged in the protective shell 10, the gas exchange box 20 is located on the end face opposite to the temperature display 11, the space passed by the gas exchange box 20 is a recovery channel 21, an elastic part is arranged between the gas exchange box 20 and the recovery channel 21, the gas exchange box 20 slides in the recovery channel 21 through the elastic part, induction limiting devices a are symmetrically arranged on both sides of the end of the recovery channel 21 located inside the protective shell 10, the induction limiting device a includes a temperature sensing component and a limiting component, the temperature sensing component is directly attached to the protective inner shell 13, the temperature sensing component is electrically connected to the temperature display 11, and is used for sensing heat and driving the limiting component to act, and the limiting component is used for restricting the sliding of the gas exchange box 20 in the recovery channel 21; an exhaust channel is arranged in the gas exchange box 20 along the extending direction of the internal space of the protective shell 10, and an opening is arranged on the side of the exhaust channel facing the inside of the protective shell 10.

[0034] Please refer to Figure 1 , the heat conduction part includes a heat sink 12, and the heat sink 12 is fixed between the end faces of the protective shell 10 where the temperature display 11 and the gas exchange box 20 are installed; one side of the heat sink 12 communicates with the internal space of the protective shell 10, and the other side communicates with the external space.

[0035] Please refer to Figure 2 , the power output part includes output power connectors 14, at least three groups of output power connectors 14 are provided, the output power connectors 14 are fixedly installed side by side at one end of the protective inner shell 13, and the output power connectors 14 are located outside the protective shell 10.

[0036] Please refer to Figure 5 and Figure 6, the temperature-sensitive component includes a limit box 40, a temperature conductor 41, a thermal expansion material 44, a return spring 45 and a sliding sealing plate 46; the limit box 40 is vertically arranged and fixedly connected to the inner end wall of the protective housing 10, the temperature conductor 41 is arranged between the protective inner shell 13 and the limit box 40, one end face of the temperature conductor 41 is attached to the protective inner shell 13 and the other end face is fixedly connected to the limit box 40, the sliding sealing plate 46 is slidably arranged in the limit box 40, the return spring 45 is arranged on one side of the sliding space of the sliding sealing plate 46 away from the temperature conductor 41, and both ends of the return spring 45 are in contact with the sliding sealing plate 46 and the limit box 40 respectively, and the thermal expansion material 44 is arranged on one side of the sliding space of the sliding sealing plate 46 away from the temperature conductor 41; there are four thermal expansion materials 44 in total, and the four thermal expansion materials 44 are symmetrically arranged about the return spring 45 along the extending direction of the limit box 40.

[0037] Please refer to Figure 5 and Figure 6 , the limit component includes a limit plate 42, a pneumatic chamber 43 and a safety component. The pneumatic chamber 43 is communicated with the space where the sliding sealing plate 46 slides, and the pneumatic chamber 43 is located on the side of the sliding sealing plate 46 away from the temperature conductor 41. One end of the limit plate 42 is slidably arranged in the pneumatic chamber 43, and the other end of the limit plate 42 extends into the protective housing 10 and extends to the opening of the recovery channel 21. The connection between the sliding sealing plate 46 and the limit box 40 is sealed, and the connection between the limit plate 42 and the pneumatic chamber 43 is sealed; the safety component is arranged above the limit box 40 to limit the movement of the gas exchange box 20.

[0038] Please refer to Figure 2 and Figure 5 , there are four gas exchange boxes 20 arranged horizontally. Dust-proof nets 25 are fixedly installed at both ends of the exhaust channels of the gas exchange boxes 20. The dust-proof nets 25 can isolate most of the dust in the air from entering the interior of the protective housing 10. The dust-proof nets 25 are made of hard metal materials; a support column 60 is vertically inserted through the middle of the dust-proof net 25, and the dust-proof net 25 is fixedly connected to the support column 60. Both ends of the support column 60 are in sliding contact with the gas exchange box 20. The support column 60 first undergoes displacement after the dust-proof net 25 is impacted, causing the connection part between the dust-proof net 25 and the support column 60 to bend. The bent dust-proof net 25 abuts against the inner wall of the recovery channel 21 and forms a triangular area to provide auxiliary support for the gas exchange box 20; the safety component is only arranged at three gas exchange boxes 20 close to the power output part, and no safety component is arranged at one gas exchange box 20 away from the power output part.

[0039] Please refer to Figure 8, the elastic part includes a fixing plate 22, a elastic spring 23 and a sliding groove 24. The sliding groove 24 is arranged on the end face of the recovery channel 21 away from the heat sink 12. The fixing plate 22 is slidably arranged in the sliding groove 24. The fixing plate 22 is fixedly connected to the end face of the gas exchange box 20 close to the sliding groove 24. The elastic spring 23 is arranged on the side of the fixing plate 22 away from the protection inner shell 13, and the elastic spring 23 abuts against the protection outer shell 10 and the fixing plate 22.

[0040] Please refer to Figure 3 , the temperature sensing component further includes a joint protection plate 15, a turning plate 31, an installation cavity 32, an installation plate 33 and a driving part; the joint protection plate 15 is fixedly connected to the protection outer shell 10. The joint protection plate 15 is located on the side of the protection outer shell 10 close to the power output part. The joint protection plate 15 is arranged in an L shape; the turning plate 31 is vertically hinged to the protection outer shell 10, and the turning plate 31 is symmetrically arranged with the vertical part of the joint protection plate 15 in position. The turning plate 31 is in sliding contact with the horizontal part of the joint protection plate 15; an installation cavity 32 is arranged through the inside of the turning plate 31. The installation cavity 32 extends in the direction close to or away from the joint protection plate 15. An installation plate 33 is fixedly installed in the installation cavity 32, and a rotating fan is installed on the installation plate 33; the driving part drives the turning plate 31 to rotate along the hinge.

[0041] Please refer to Figure 3 , Figure 4 and Figure 9 , the driving part includes a driving motor 30 and a driving shaft 35. The driving motor 30 is fixedly connected to the protection outer shell 10. The driving motor 30 is located at the hinge of the turning plate 31 and the protection outer shell 10. The driving shaft 35 is power-connected to the side of the driving motor 30 close to the hinge of the turning plate 31 and the protection outer shell 10; the driving shaft 35 passes through the hinge of the protection outer shell 10 and the turning plate 31, and is rotatably connected to the protection outer shell 10 and fixedly connected to the turning plate 31. The driving motor 30 is electrically connected to the conductive part; the driving part further includes a movable contact 50 and a fixed contact 51. The movable contact 50 and the fixed contact 51 are arranged opposite to each other, and the movable contact 50 is fixedly connected to the gas exchange box 20. The fixed contact 51 is fixedly connected to the end face of the recovery channel 21 away from the inner space of the protection outer shell 10. When all the movable contacts 50 installed on the gas exchange box 20 abut against the fixed contacts 51 on the recovery channel 21, the driving part circuit is connected.

[0042] Please refer to Figure 10 and Figure 12, the insurance component includes a pull rope 61, a rotating wheel 62, an insurance strip 63, a connecting wheel 64 and a connecting shaft 65. The connecting wheel 64 is arranged above the limit box 40 and is rotatably connected to the end face of one side of the limit box 40 installed in the protection shell 10. The insurance strip 63 is fixed on the outer curved surface of the connecting wheel 64. The connecting shaft 65 is rotatably arranged in the protection shell 10 and is fixedly connected to the axis of the connecting wheel 64. The rotating wheel 62 is rotatably arranged inside the protection shell 10 and is fixedly connected to the connecting shaft 65. One end of the pull rope 61 is wound around the outer end face of the rotating wheel 62, and the other end of the pull rope 61 extends into the sliding groove 24 on the side farthest from the power output part and is fixedly connected to the end face of the side of the gas exchange box 20 where a elastic spring 23 is connected. The three rotating wheels 62 on the side close to the power output part and the gas exchange box 20 on the side far from the power output part are connected by the pull rope 61, so that the gas exchange box 20 can drive the rotating wheel 62 to rotate during the movement process, thus playing a role in restricting and releasing the restriction on the movement of the other three gas exchange boxes 20.

[0043] In the initial state, the gas exchange box 20 is located inside the protection shell 10 and is clamped with the limit plate 42. The elastic spring 23 is stretched. The flip plate 31 is parallel to the plane on the side of the protection shell 10 where the gas exchange box 20 is installed, and the driving motor 30 is powered off.

[0044] During operation, the power plug of the security camera is connected to the output power connector 14 to make the security camera work. During use, the temperature inside the protection inner shell 13 will gradually increase. At this time, the temperature conductor 41 contacts the protection inner shell 13 and transmits the temperature of the protection inner shell 13 to the temperature display 11 in real time and displays it digitally.

[0045] At the same time, when the heat at a certain place of the protection inner shell 13 increases in a short time, the temperature conductor 41 near this place will transmit the heat inside the protection inner shell 13 to the thermally expandable material 44. The thermally expandable material 44 will gradually expand after continuing to absorb heat after exceeding the temperature limit (the specific temperature limit is determined by using different materials), so that the sliding sealing plate 46 moves away from the limit plate 42. At this time, the air pressure in the air pressure chamber 43 gradually decreases, and the limit plate 42 retracts into the air pressure chamber 43. When the limit plate 42 is disconnected from the gas exchange box 20, the gas exchange box 20 moves away from the protection inner shell 13 under the action of the elastic spring 23. When the gas exchange box 20 moves to the limit position, the movable contact 50 and the fixed contact 51 at this place are in contact, and at the same time, the space where the protection inner shell 13 is located communicates with the outside of the protection shell 10 through the gas exchange box 20 to realize gas exchange, thereby reducing the temperature of the protection inner shell 13 at this place. At the same time, the dustproof net 25 can prevent sundries and dust in the external air from entering the protection shell 10.

[0046] When all the gas exchange boxes 20 are ejected through the above process and all the movable contacts 50 are in contact with the fixed contacts 51, the drive motor 30 is powered on and started, causing the drive shaft 35 to rotate forward by a quarter turn, thereby driving the flip plate 31 to rotate 90 degrees in the direction close to the gas exchange box 20, making the flip plate 31 perpendicular to the end face of the protective housing 10 where the gas exchange box 20 is installed. Then the drive motor 30 is turned off, and then the rotating fan is started to accelerate the gas exchange speed between the air inside the protective housing 10 and the air outside the protective housing 10 through the gas exchange box 20, thereby minimizing the temperature inside the inner protective shell 13.

[0047] After heat dissipation is completed, when the drive motor 30 is started in the reverse direction to restore the flip plate 31 to its initial state, the drive motor 30 is turned off. Then, manually press the gas exchange box 20 in the direction close to the inner protective shell 13. When the gas exchange box 20 abuts against the limit plate 42, the limit plate 42 moves in the direction close to the air pressure chamber 43. As the gas exchange box 20 continues to move, the limit plate 42 is engaged with the part of the gas exchange box 20 where the movable contact 50 is installed, thereby restricting the movement of the gas exchange box 20.

[0048] When the gas exchange box 20 at the location of the thermal expansion material 44 with the lowest heating temperature is ejected, pull the pull rope 61 here, thereby driving the rotating wheel 62 in the remaining insurance components to rotate by the pull rope 61, thereby driving the connecting wheel 64 to rotate through the connecting shaft 65, and then causing the insurance strip 63 to rotate and extend out into the gap between the gas exchange box 20 and the protective housing 10. The gap between the gas exchange box 20 and the protective housing 10 is formed by the abutment of the gas exchange box 20 and the limit plate 42. After the insurance strip 63 extends out, its insurance effect is released. When the limit plate 42 is disengaged from the gas exchange box 20, the gas exchange box 20 can move outward;

[0049] When the gas exchange box 20 at the location of the thermal expansion material 44 with the lowest heating temperature is not ejected, the insurance strips 63 at the other three gas exchange boxes 20 do not rotate. At this time, even if the limit plate 42 is disengaged from the gas exchange box 20, the gas exchange box 20 cannot move outward when it is disengaged.

[0050] When a side impact occurs after all the gas exchange boxes 20 are ejected, the external force impacts the side of all the gas exchange boxes 20 away from the protective housing 10. At this time, the gas exchange boxes 20 reset to the side close to the protective housing 10 under the action of inertia force. At this time, the elastic springs 23 are gradually stretched, thereby offsetting part of the force and slowing down the speed of the gas exchange boxes 20. When the inertia force acts continuously on the gas exchange boxes 20 with a large magnitude, the gas exchange boxes 20 continue to be stressed when they are completely retracted into the protective housing 10. At this time, the upper and lower end walls of the gas exchange boxes 20 are deformed and bent. At the same time, the connection between the dust-proof net 25 and the support column 60 is bent, causing the support column 60 to move away from the gas exchange box 20 and abut against the end wall of the recovery channel 21 in the protective housing 10. At this time, a triangular area is formed between the dust-proof net 25 and the end wall of the recovery channel 21 to resist the impact force of the gas exchange boxes 20.

Claims

1. A security power supply with temperature monitoring function, characterized in that: It includes a protective housing (10), a temperature display (11), a protective inner housing (13), a gas exchange box (20), a heat conduction part and a power output part; The inside of the protective housing (10) is hollow and a pair of opposite sides thereof communicate with the outside. The temperature display (11) is installed on the other side of the outside of the protective housing (10). The protective inner housing (13) is installed inside the protective housing (10). One end of the protective inner housing (13) is connected to the power output part, and the other end passes through the protective housing (10) and is connected to an external power supply device. The heat conduction part is arranged on the outer end face of the protective housing (10) and this end face is perpendicular to the temperature display (11); The gas exchange box (20) is slidably arranged in the protective housing (10). Four gas exchange boxes (20) are arranged horizontally. The gas exchange box (20) is located on the end face opposite to the temperature display (11). The space passed by the gas exchange box (20) is a recovery channel (21). An elastic part is arranged between the gas exchange box (20) and the recovery channel (21). The gas exchange box (20) slides in the recovery channel (21) through the elastic part. Inductive limiting devices (a) are symmetrically arranged on both sides of one end of the recovery channel (21) inside the protective housing (10). The inductive limiting device (a) includes a temperature sensing component and a limiting component. The temperature sensing component is directly attached to the protective inner housing (13). The temperature sensing component is electrically connected to the temperature display (11) and is used for sensing heat and driving the limiting component to act. The limiting component is used for limiting the sliding of the gas exchange box (20) in the recovery channel (21); The temperature sensing component includes a limiting box (40), a temperature conductor (41), a thermal expansion material (44), a return spring (45) and a sliding sealing plate (46); The limiting box (40) is arranged vertically and is fixedly connected to the inner end wall of the protective housing (10). The temperature conductor (41) is arranged between the protective inner housing (13) and the limiting box (40). One end face of the temperature conductor (41) is attached to the protective inner housing (13) and the other end face is fixedly connected to the limiting box (40). The sliding sealing plate (46) is slidably arranged in the limiting box (40). The return spring (45) is arranged on the side away from the temperature conductor (41) in the sliding space of the sliding sealing plate (46). The two ends of the return spring (45) are respectively abutted against the sliding sealing plate (46) and the limiting box (40). The thermal expansion material (44) is arranged on the side away from the temperature conductor (41) in the sliding space of the sliding sealing plate (46); A total of four thermal expansion materials (44) are arranged, and the four thermal expansion materials (44) are symmetrically arranged about the return spring (45) along the extending direction of the limiting box (40).

2. The security power supply with temperature monitoring function according to claim 1, characterized in that: The heat conduction part includes a heat sink (12), and the heat sink (12) is fixed between the end faces of the protective housing (10) where the temperature display (11) and the gas exchange box (20) are installed; one side of the heat sink (12) communicates with the internal space of the protective housing (10), and the other side communicates with the external space.

3. The security power supply with temperature monitoring function according to claim 1, characterized in that: The power output unit includes an output power connector (14). There are at least three groups of output power connectors (14). The output power connectors (14) are fixedly installed in parallel at one end of the protective inner shell (13), and the output power connectors (14) are located outside the protective outer shell (10).

4. The security power supply with temperature monitoring function according to claim 1, characterized in that: The limiting component includes a limiting plate (42), a pneumatic cavity (43) and a safety component. The pneumatic cavity (43) is in communication with the space where the sliding sealing plate (46) slides, and the pneumatic cavity (43) is located on the side of the sliding sealing plate (46) away from the temperature conductor (41). One end of the limiting plate (42) is slidably arranged in the pneumatic cavity (43), and the other end of the limiting plate (42) extends into the protective outer shell (10) and extends to the opening of the recovery channel (21). The connection between the sliding sealing plate (46) and the limiting box (40) is sealed, and the connection between the limiting plate (42) and the pneumatic cavity (43) is sealed; The safety component is arranged above the limiting box (40) to limit the movement of the gas exchange box (20), and the safety component is only arranged at three gas exchange boxes (20) close to the power output unit side.

5. The security power supply with temperature monitoring function according to claim 1, characterized in that: Dust-proof nets (25) are fixedly installed at both ends of the exhaust channel of the gas exchange box (20); An exhaust channel is arranged in the gas exchange box (20) along the extending direction of the internal space of the protective outer shell (10), and an opening is arranged on the side of the exhaust channel facing the inside of the protective outer shell (10); A support column (60) is vertically inserted through the middle of the dust-proof net (25). The dust-proof net (25) is fixedly connected with the support column (60), and both ends of the support column (60) are in sliding contact with the gas exchange box (20).

6. The security power supply with temperature monitoring function according to claim 1, characterized in that: The elastic part includes a fixed plate (22), a spring (23) and a sliding groove (24). The sliding groove (24) is arranged on the end face of the recovery channel (21) away from the heat sink (12). The fixed plate (22) is slidably arranged in the sliding groove (24). The fixed plate (22) is fixedly connected with the end face of the gas exchange box (20) close to the sliding groove (24). The spring (23) is arranged on the side of the fixed plate (22) away from the protective inner shell (13), and the spring (23) is in contact with the protective outer shell (10) and the fixed plate (22).

7. The security power supply with temperature monitoring function according to claim 1, characterized in that: The temperature sensing component further includes a joint protection plate (15), a turning plate (31), an installation cavity (32), an installation plate (33) and a driving part; The joint protection plate (15) is fixedly connected with the protective outer shell (10). The joint protection plate (15) is located on the side of the protective outer shell (10) close to the power output unit, and the joint protection plate (15) is arranged in an L shape; The turning plate (31) is vertically hinged with the protective outer shell (10), and the turning plate (31) is symmetrically arranged with the vertical part of the joint protection plate (15) in position. The turning plate (31) is in sliding contact with the horizontal part of the joint protection plate (15); An installation cavity (32) runs through the inside of the turning plate (31). The installation cavity (32) extends towards or away from the joint protection plate (15). An installation plate (33) is fixedly installed in the installation cavity (32), and a rotating fan is installed on the installation plate (33); After being electrified, the driving part drives the turning plate (31) to rotate along the hinge.

8. The security power supply with temperature monitoring function according to claim 7, characterized in that: The driving part includes a driving motor (30) and a driving shaft (35). The driving motor (30) is fixedly connected to the protective housing (10). The driving motor (30) is located at the hinge joint of the flip plate (31) and the protective housing (10). The driving shaft (35) is power-connected to one side of the driving motor (30) close to the hinge joint of the flip plate (31) and the protective housing (10). The driving shaft (35) passes through the hinge joint of the protective housing (10) and the flip plate (31), is rotatably connected to the protective housing (10), and is fixedly connected to the flip plate (31). The driving motor (30) is electrically connected to the conductive part; The driving part further includes a movable contact (50) and a fixed contact (51). The movable contact (50) and the fixed contact (51) are arranged opposite to each other. The movable contact (50) is fixedly connected to the gas exchange box (20). The fixed contact (51) is fixedly connected to the end face of the recovery channel (21) away from the inner space of the protective housing (10). When all the movable contacts (50) installed on the gas exchange box (20) are in contact with the fixed contacts (51) on the recovery channel (21), the circuit of the driving part is connected.

9. The security power supply with temperature monitoring function according to claim 4, characterized in that: The insurance component includes a pull rope (61), a runner (62), an insurance strip (63), a connecting wheel (64) and a connecting shaft (65). The connecting wheel (64) is arranged above the limit box (40) and is rotatably connected to the end face of the side of the protective housing (10) where the limit box (40) is installed. The insurance strip (63) is fixed to the outer curved surface of the connecting wheel (64). The connecting shaft (65) is rotatably arranged in the protective housing (10) and is fixedly connected to the axis of the connecting wheel (64). The runner (62) is rotatably arranged inside the protective housing (10) and is fixedly connected to the connecting shaft (65). One end of the pull rope (61) is wound around the outer end face of the runner (62). The other end of the pull rope (61) extends into the sliding groove (24) on the side farthest from the power output part and is fixedly connected to the end face of the side of the gas exchange box (20) where a spring (23) is connected.

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