Unattended low-voltage switch cabinet

Abstract

The invention discloses an unattended low-voltage switch cabinet, and relates to the field of low-voltage switch cabinets, the unattended low-voltage switch cabinet comprises a cabinet body, an opening and closing mechanism, a plurality of anti-off-line mechanisms and a cooling heat dissipation mechanism, the outer side wall of the cabinet body is provided with a plurality of heat dissipation holes, the inner wall of the cabinet body is provided with mounting grooves corresponding to the heat dissipation holes, the cabinet body is provided with a cabinet door, and the cabinet door is provided with a plurality of through holes. A temperature and humidity monitor and a plurality of cooling fans are arranged on the cabinet door, a connecting terminal and a plurality of wires are arranged in the cabinet body, a flow guide top is arranged at the top of the inner wall of the cabinet body, and a flow guide groove is formed in the flow guide top; when the temperature and humidity monitor monitors that the local temperature in the cabinet body is high, the control panel controls the heat dissipation fan to work, external air enters the cabinet body through the heat dissipation holes, and the air direction is adjusted to the position where the local temperature in the cabinet body is high through rotation adjustment of the sealing baffle, so that heat dissipation is carried out; and the air entering the cabinet body through the rotation of the cooling fan brings the heat in the cabinet body into the heat exchange tube for cooling.

Description

Technical Field

[0001] The invention relates to the field of low-voltage switch cabinets, and more specifically to an unattended low-voltage switch cabinet. Background Art

[0002] Unmanned low-voltage switchgear, as the name implies, is a device that can automatically complete functions such as power distribution, protection, control and monitoring without direct human involvement; it realizes remote monitoring and management of the power system through advanced automation technology, sensors and communication systems; the structure of the switchgear is generally similar, and the components in the switchgear mainly include busbars, circuit breakers, disconnectors, load switches, operating mechanisms, mutual inductors and various protection devices; the main function of the switchgear is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system, especially for complete sets of low-voltage switchgear used underground, which often need to have unmanned characteristics;

[0003] However, in the prior art, the connection between the wiring terminals in the low-voltage switch cabinet and the multiple wires is usually fastened with screws. When the equipment is repaired, the wires may be pulled, which may cause the wires and the wiring terminals to loosen, and it is impossible to accurately and quickly find the loose wires from the wiring terminals, affecting the normal operation of the low-voltage switch cabinet; and the space underground is relatively limited, and the heat in the low-voltage switch cabinet is usually dissipated to the outside by air cooling. The heat is concentrated around the low-voltage switch cabinet, making the temperature around the low-voltage switch cabinet higher. Under the subsequent heat dissipation, the air that has not been cooled in time enters the low-voltage switch cabinet again, resulting in poor heat dissipation effect. Summary of the invention

[0004] In view of the problems in the prior art that it is impossible to accurately and quickly find the loose wires connected to the terminal blocks, which affects the normal operation of the low-voltage switch cabinet; and the heat discharged by the cooling fan is relatively concentrated around the low-voltage switch cabinet, which makes the temperature around the low-voltage switch cabinet higher, resulting in poor subsequent heat dissipation effect, the purpose of the present invention is to provide an unattended low-voltage switch cabinet.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] An unattended low-voltage switch cabinet comprises a cabinet, an opening and closing mechanism, a plurality of anti-offline mechanisms and a cooling and heat dissipation mechanism, a plurality of heat dissipation holes are provided on the outer wall of the cabinet, a mounting groove is provided at the position corresponding to the heat dissipation holes on the inner wall of the cabinet, a cabinet door is provided on the cabinet door, a temperature and humidity monitor and a plurality of heat dissipation fans are provided, a connection terminal and a plurality of wires are installed in the cabinet, a guide top is provided on the top of the inner wall of the cabinet, and a guide groove is provided on the guide top;

[0007] The opening and closing mechanism is arranged in the mounting groove on the inner wall of the cabinet, and the opening and closing mechanism is used to dissipate the local heat in the cabinet to adjust the wind direction;

[0008] The anti-offline mechanism is arranged on the connection terminal, and is used to remind the staff whether the wire is loose and detached from the connection terminal, so as to facilitate the staff to quickly reconnect it;

[0009] The cooling and heat dissipation mechanism is arranged on the cabinet door, and is used for dissipating the heat of the air that takes away the heat in the cabinet.

[0010] Furthermore, the opening and closing mechanism includes: a fixed frame, a plurality of sealing baffles, a plurality of connecting rods, a cylinder and a push rod. The fixed frame is fixedly installed in the mounting groove of the cabinet. A plurality of rotating shafts are rotatably connected in the fixed frame. The plurality of sealing baffles are respectively fixedly connected to the plurality of rotating shafts. One end of the connecting rod is rotatably connected to the rotating shaft, and the other end is rotatably connected to the push rod. The cylinder is fixedly installed on the top inner wall of the cabinet, and the output end of the cylinder is fixedly connected to the push rod.

[0011] Furthermore, a sealing rubber strip is provided on the sealing baffle.

[0012] Furthermore, a dust filter is provided between the heat dissipation hole and the opening and closing mechanism.

[0013] Furthermore, the connecting terminal is provided with a plurality of mounting holes and a plurality of mounting screws, and the connecting terminal is connected to the multi-strand wires through the mounting holes and the mounting screws. The connecting terminal is provided with a mounting plate, and the mounting plate has round holes at positions corresponding to the mounting holes. The mounting plate has a mounting cavity, and a parallel circuit is provided in the mounting cavity. The parallel circuit is provided with a plurality of groups of conductive mounting plates, and the mounting plate has a plurality of groups of plug holes, and the conductive mounting plates are installed at the bottom of the plug holes.

[0014] Furthermore, the anti-offline mechanism includes: a group of limit plates, a buckle ring, a warning light, a group of power poles and a group of springs, a group of limit plates are symmetrically arranged on both sides of the mounting hole, a group of limit plates are provided with limit slots at one end close to each other, the buckle ring is arranged between a group of limit plates, a group of sliders are fixedly connected to the side wall of the buckle ring, the sliders are arranged in the limit slots, one end of the spring is fixedly connected to the sliders, and the other end is fixedly connected to the mounting buckle plate;

[0015] An installation connection hole is provided in the snap ring, the warning light is arranged in the installation connection hole, a group of conductive pins are connected to the warning light, a group of conductive pins are respectively connected to a group of power poles, the power poles are inserted in the plug-in hole, and the power poles are in contact with the conductive installation sheet.

[0016] Furthermore, a group of the limiting plates are provided with semicircular holes at one end close to each other, the wire clamps are arranged in a group of semicircular holes, and rubber strips are arranged in the semicircular holes.

[0017] Furthermore, a plurality of circular mounting holes are provided on the cabinet door, and a plurality of the cooling fans are respectively installed in the plurality of circular mounting holes, and a connecting pipe is provided at one end of the circular mounting hole away from the cabinet body.

[0018] Furthermore, the cooling and heat dissipation mechanism includes: a heat exchange tube, a water storage tank, a circulation pump, a water pump, a water delivery pipe and a return pipe, the heat exchange tube is respectively connected to a plurality of connecting pipes, a spiral cavity is arranged in the tube wall of the heat exchange tube, the water storage tank is fixedly mounted on the cabinet door, the circulation pump is fixedly mounted on the water storage tank, a partition is arranged in the water storage tank, and the partition divides the water storage tank into a cold water chamber and a return water chamber;

[0019] One end of the circulation pump is connected to the cold water chamber of the water tank through a pumping pipe, and the other end is connected to the spiral chamber through a water supply pipe. The end of the spiral chamber away from the water supply pipe is connected to the return pipe, and the end of the return pipe away from the spiral chamber is connected to the return water chamber of the water tank.

[0020] Furthermore, a plurality of supporting legs are provided at the bottom of the cabinet, and a plurality of collecting boxes are provided in the cabinet.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The two pins on the warning light are respectively connected to a group of power posts, the power posts are inserted into the plug holes of the mounting plate, and the side walls of the plug holes are provided with conductive mounting plates. A circuit is provided in the snap ring, and the circuit is connected to the conductive mounting plates. When the wire is pulled loose from the connection terminal, the power posts at the bottom of the snap ring stop contacting the conductive mounting plates. At this time, the circuit is in an unconnected state, and the warning light is off, which is used to remind the staff that the wire is loose from the connection terminal, so that the staff can quickly find the wire that is loose from the connection terminal; it is convenient for the staff to quickly reconnect the wire to the connection terminal.

[0023] (2) The cold water in the cold water chamber of the water storage tank is transported to the spiral chamber in the wall of the heat exchange tube through the circulating pump and the water pumping pipe. The cold water circulates in the spiral chamber from bottom to top, exchanges heat with the air that absorbs heat in the heat exchange tube, and cools the hot air in the heat exchange tube. The cold water after heat exchange enters the return water chamber of the water storage tank through the return pipe, avoiding the high temperature around the low-voltage switch cabinet, resulting in the air that has not been cooled in time to enter the cabinet of the low-voltage switch cabinet again under subsequent heat dissipation, thereby ensuring a good heat dissipation effect.

[0024] (3) The temperature and humidity inside the cabinet are monitored in real time through the temperature and humidity monitor, and the real-time monitored temperature and humidity information is fed back to the control board. When the temperature inside the cabinet is normal and the external humidity is high, the control board controls the output end of the cylinder to work. Since one end of the connecting rod is rotatably connected to the push rod, and the other end is rotatably connected to the fixed frame through the rotating shaft, and the sealing baffle is fixedly connected to the rotating shaft, when the cylinder is controlled by the control board to push the push rod, multiple sealing baffles are synchronously rotated. When multiple sealing baffles are connected end to end in sequence, the cabinet is closed to prevent external water vapor from entering the cabinet. When the temperature and humidity monitor detects that the local temperature inside the cabinet is high, the control board controls the cooling fan to work. Under the rotation of the cooling fan, the external air enters the cabinet through the heat dissipation holes, and then the control board controls the output end of the cylinder to work. Through the rotation adjustment of the sealing baffle, the wind direction is adjusted to the position where the local temperature inside the cabinet is high for heat dissipation. The air entering the cabinet after the working rotation of the cooling fan brings the heat inside the cabinet to the heat exchange tube.

[0025] (4) In this scheme, a guide top is set on the top of the inner wall of the cabinet, and an inclined guide groove is set at one end of the guide top close to the connection terminal to prevent condensation from occurring when the air with relatively high humidity and relatively high temperature hits the surface of the inner wall of the cabinet with relatively low temperature. A hydrophilic coating material is set on the guide groove to allow water to crawl on the surface of the material at a low angle, thereby reducing condensation formed by the temperature difference between cold and warm. The inclined guide groove allows the water crawling on the surface of the material at a low angle to flow along the corners of the guide groove under the action of gravity, forming water droplets and finally entering the collection box, thereby avoiding affecting the insulation of the circuit equipment and protecting the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the installation structure of a complete set of low-voltage switch cabinets for an unattended low-voltage switch cabinet provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of an unattended low-voltage switch cabinet door open state provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of an opening and closing mechanism of an unattended low-voltage switchgear provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of an anti-offline mechanism for an unattended low-voltage switch cabinet provided in an embodiment of the present application;

[0030] Figure 5 for Figure 4 A magnified schematic diagram of the middle part;

[0031] Figure 6A schematic diagram of the partial structure of an anti-offline mechanism of an unattended low-voltage switchgear provided in an embodiment of the present application;

[0032] Figure 7 A schematic diagram of a cooling and heat dissipation mechanism of an unattended low-voltage switch cabinet provided in an embodiment of the present application;

[0033] Figure 8 A schematic diagram of the internal structure of a heat exchange tube of an unattended low-voltage switch cabinet provided in an embodiment of the present application;

[0034] Fig. 9 A schematic diagram of the guide top structure of an unattended low-voltage switchgear provided in an embodiment of the present application.

[0035] Description of the numbers in the figure:

[0036] 1. Cabinet body; 11. Heat dissipation holes; 12. Cabinet door; 13. Supporting legs; 14. Diversion top; 141. Diversion slot; 15. Collection box;

[0037] 2. Fixed frame; 21. Sealing baffle; 22. Connecting rod; 23. Cylinder; 24. Push rod;

[0038] 3. Temperature and humidity monitor; 4. Cooling fan;

[0039] 5. Connecting terminal; 51. Wire; 52. Mounting buckle plate; 53. Limiting plate; 531. Limiting slide groove; 54. Buckle ring; 541. Slider; 542. Warning light; 5421. Electric pole; 55. Spring;

[0040] 6. Heat exchange tube; 61. Water storage tank; 62. Circulation pump; 621. Water suction pipe; 622. Water delivery pipe; 63. Spiral cavity; 64. Reflux pipe; 65. Connecting pipe. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0042] See also Figures 1 to 9, an unattended low-voltage switch cabinet, comprising a cabinet 1, an opening and closing mechanism, a plurality of anti-offline mechanisms and a cooling and heat dissipation mechanism, a plurality of heat dissipation holes 11 are opened on the outer wall of the cabinet 1, a mounting groove is arranged at the position of the inner wall of the cabinet 1 corresponding to the heat dissipation holes 11, a cabinet door 12 is arranged on the cabinet 1, a temperature and humidity monitor 3 and a plurality of heat dissipation fans 4 are arranged on the cabinet door 12, a connection terminal 5 and a plurality of strands of wires 51 are installed in the cabinet 1, a guide top 14 is arranged on the top of the inner wall of the cabinet 1, a guide groove 141 is opened on the guide top 14, a plurality of support legs 13 are arranged at the bottom of the cabinet 1, and a plurality of collection boxes 15 are arranged in the cabinet 1;

[0043] By adopting the above technical scheme, a guide top 14 is arranged on the top of the inner wall of the cabinet 1, and an inclined guide groove 141 is arranged at one end of the guide top 14 close to the connecting terminal 5 to prevent condensation from occurring when the air with relatively high humidity and relatively high temperature hits the surface of the inner wall of the cabinet 1 with relatively low temperature. A hydrophilic coating material is arranged on the guide groove 141 to allow water to crawl on the surface of the material at a low angle, thereby reducing condensation formed due to the temperature difference between cold and warm temperatures. The inclined guide groove 141 allows the water crawling on the surface of the material at a low angle to flow along the corners of the guide groove 141 under the action of gravity, and gather into water droplets, and finally enter the collection box 15, thereby avoiding affecting the insulation of the circuit equipment and protecting the equipment.

[0044] like Figure 2 and Figure 3 As shown, the opening and closing mechanism is arranged in the mounting groove of the inner wall of the cabinet 1, and the opening and closing mechanism is used to dissipate the local heat in the cabinet 1 to achieve wind direction adjustment; the opening and closing mechanism includes: a fixed frame 2, a plurality of sealing baffles 21, a plurality of connecting rods 22, a cylinder 23 and a push rod 24, the fixed frame 2 is fixedly installed in the mounting groove of the cabinet 1, a plurality of rotating shafts are rotatably connected in the fixed frame 2, a plurality of sealing baffles 21 are respectively fixedly connected to the plurality of rotating shafts, one end of the connecting rod 22 is rotatably connected to the rotating shaft, and the other end is rotatably connected to the push rod 24, the cylinder 23 is fixedly installed on the top inner wall of the cabinet 1, the output end of the cylinder 23 is fixedly connected to the push rod 24, a sealing rubber strip is provided on the sealing baffle 21, and a dustproof filter for preventing dust from entering the cabinet 1 is provided between the heat dissipation hole 11 and the opening and closing mechanism;

[0045] By adopting the above technical solution, the temperature and humidity in the cabinet 1 are monitored in real time through the temperature and humidity monitor 3, and the real-time monitored temperature and humidity information is fed back to the control board. When the temperature in the cabinet 1 is normal and the external humidity is high, the control board controls the output end of the cylinder 23 to work. Since one end of the connecting rod 22 is rotatably connected to the push rod 24, and the other end is rotatably connected to the fixed frame 2 through the rotating shaft, and the sealing baffle 21 is fixedly connected to the rotating shaft, when the cylinder 23 is controlled by the control board to push the push rod 24, the synchronous rotation of multiple sealing baffles 21 is realized. When the multiple sealing baffles 21 are connected end to end in sequence, the cabinet 1 is closed to prevent external water vapor from entering the cabinet 1;

[0046] When the temperature and humidity monitor 3 detects that the local temperature in the cabinet 1 is relatively high, the control panel controls the cooling fan 4 to work. When the cooling fan 4 rotates, the outside air enters the cabinet 1 through the heat dissipation holes 11, and then the control panel controls the output end of the cylinder 23 to work. By rotating the sealing baffle 21, the wind direction is adjusted to the position where the local temperature in the cabinet 1 is relatively high to dissipate heat. The air entering the cabinet 1 after the cooling fan 4 rotates brings the heat in the cabinet 1 to the heat exchange tube 6.

[0047] like Figures 4 to 6 As shown, the anti-offline mechanism is arranged on the connection terminal 5, and the anti-offline mechanism is used to remind the staff whether the wire 51 and the connection terminal 5 are loose and detached, so as to facilitate the staff to quickly reconnect them; the connection terminal 5 is provided with a plurality of mounting holes and a plurality of mounting screws, and the connection terminal 5 is connected with the multi-strand wire 51 through the mounting holes and the mounting screws, and the connection terminal 5 is provided with a mounting gusset plate 52, and the mounting gusset plate 52 is provided with a circular hole at the position corresponding to the mounting hole, and the mounting gusset plate 52 is provided with a mounting cavity, and a parallel circuit is provided in the mounting cavity, and a plurality of groups of conductive mounting sheets are provided in the parallel circuit, and a plurality of groups of plug holes are provided on the mounting gusset plate 52, and the conductive mounting sheets are installed at the bottom of the plug holes;

[0048] The anti-offline mechanism includes: a group of limit plates 53, a buckle ring 54, a warning light 542, a group of power connection posts 5421 and a group of springs 55. The group of limit plates 53 are symmetrically arranged on both sides of the mounting hole. The end of the group of limit plates 53 close to each other is provided with a limit slide groove 531. The buckle ring 54 is arranged between the group of limit plates 53. A group of sliders 541 are fixedly connected to the side wall of the buckle ring 54. The sliders 541 are arranged in the limit slide grooves 531. One end of the spring 55 is fixedly connected to the slider 541, and the other end is fixedly connected to the mounting buckle plate 52.

[0049] A mounting connection hole is provided in the buckle ring 54, and a warning light 542 is arranged in the mounting connection hole. A group of conductive pins are connected to the warning light 542, and the group of conductive pins are respectively connected to a group of power posts 5421, which are inserted into the plug-in hole, and the power posts 5421 are in contact with the conductive mounting sheet. A group of limit plates 53 are provided with semicircular holes at one end close to each other, and the wires 51 are clamped in the group of semicircular holes, and rubber strips are arranged in the semicircular holes.

[0050] By adopting the above technical scheme, by providing a mounting buckle plate 52 on the connecting terminal 5, the two pins on the warning light 542 are respectively connected to a group of connecting posts 5421, the connecting posts 5421 are inserted into the plug-in hole of the mounting buckle plate 52, and the side walls of the plug-in hole are provided with conductive mounting plates, and a circuit is provided in the snap ring 54, and the circuit is connected to the conductive mounting plate. When the wire 51 is pulled loose and detached from the connecting terminal 5, the connecting post 5421 at the bottom of the snap ring 54 stops contacting the conductive mounting plate. At this time, the circuit is in an unconnected state, and the warning light 542 is not on, which is used to remind the staff that the wire 51 is loose and detached from the connecting terminal 5, so that the staff can quickly find the wire 51 that is loose and detached from the connecting terminal 5; it is convenient for the staff to quickly reconnect the wire 51 to the connecting terminal 5, and at the same time, through the setting of the spring 55, it has a certain automatic reset effect.

[0051] like Figure 7 and Figure 8 As shown, the cooling and heat dissipation mechanism is arranged on the cabinet door 12, and the cooling and heat dissipation mechanism is used to dissipate the air that takes away the heat in the cabinet body 1. The cooling and heat dissipation mechanism includes: a heat exchange tube 6, a water storage tank 61, a circulation pump 62, a water pumping pipe 621, a water supply pipe 622 and a return pipe 64. A plurality of mounting circular holes are opened on the cabinet door 12, and a plurality of heat dissipation fans 4 are respectively mounted in the plurality of mounting circular holes. A connecting pipe 65 is arranged at one end of the mounting circular hole away from the cabinet body 1, and the heat exchange tube 6 is respectively connected with the plurality of connecting pipes 65. A spiral cavity 63 is arranged in the tube wall of the heat exchange tube 6. The water storage tank 61 is fixedly mounted on the cabinet door 12, and the circulation pump 62 is fixedly mounted on the water storage tank 61. A partition is arranged in the water storage tank 61, and the partition divides the water storage tank 61 into a cold water chamber and a return water chamber.

[0052] One end of the circulation pump 62 is connected to the cold water chamber of the water storage tank 61 through the water pumping pipe 621, and the other end is connected to the spiral chamber 63 through the water supply pipe 622. The end of the spiral chamber 63 away from the water supply pipe 622 is connected to the return pipe 64, and the end of the return pipe 64 away from the spiral chamber 63 is connected to the return water chamber of the water storage tank 61.

[0053] By adopting the above technical scheme, the cold water in the cold water cavity of the water tank 61 is transported to the spiral cavity 63 in the wall of the heat exchange tube 6 through the circulating pump 62 and the pumping pipe 621 through the water supply pipe 622. The cold water circulates in the spiral cavity 63 from bottom to top, exchanges heat with the air that absorbs heat in the heat exchange tube 6, and cools the hot air in the heat exchange tube 6. The cold water after heat exchange enters the return water cavity of the water tank 61 through the return pipe 64, avoiding the high temperature around the cabinet body 1 of the low-voltage switch cabinet, resulting in the air that has not been cooled in time to enter the cabinet body 1 of the low-voltage switch cabinet again under subsequent heat dissipation, thereby ensuring a good heat dissipation effect.

[0054] Directions:

[0055] By providing a mounting buckle plate 52 on the connecting terminal 5, the two pins on the warning light 542 are respectively connected to a group of connecting posts 5421, the connecting posts 5421 are inserted into the plug hole of the mounting buckle plate 52, and the side walls of the plug hole are provided with conductive mounting plates, and a circuit is provided in the buckle ring 54, and the circuit is connected to the conductive mounting plate. When the wire 51 is pulled loose and detached from the connecting terminal 5, the connecting post 5421 at the bottom of the buckle ring 54 stops contacting with the conductive mounting plate. At this time, the circuit is in an unconnected state, and the warning light 542 is off, which is used to remind the staff that the wire 51 is loose and detached from the connecting terminal 5, so that the staff can quickly find the wire 51 that is loose and detached from the connecting terminal 5; it is convenient for the staff to quickly reconnect the wire 51 to the connecting terminal 5, and at the same time, through the setting of the spring 55, it has a certain automatic reset effect;

[0056] The temperature and humidity in the cabinet 1 are monitored in real time by the temperature and humidity monitor 3, and the real-time monitored temperature and humidity information is fed back to the control board. When the temperature in the cabinet 1 is normal and the external humidity is high, the control board controls the output end of the cylinder 23 to work. Since one end of the connecting rod 22 is rotatably connected to the push rod 24, and the other end is rotatably connected to the fixed frame 2 through the rotating shaft, and the sealing baffle 21 is fixedly connected to the rotating shaft, when the cylinder 23 is controlled by the control board to push the push rod 24, the synchronous rotation of multiple sealing baffles 21 is realized. When the multiple sealing baffles 21 are connected end to end in sequence, the cabinet 1 is closed to prevent external water vapor from entering the cabinet 1;

[0057] When the temperature and humidity monitor 3 detects that the local temperature in the cabinet 1 is high, the control board controls the cooling fan 4 to work. Under the rotation of the cooling fan 4, the outside air enters the cabinet 1 through the heat dissipation hole 11, and then the control board controls the output end of the cylinder 23 to work. Through the rotation adjustment of the sealing baffle 21, the wind direction is adjusted to the position where the local temperature in the cabinet 1 is high to dissipate heat, and the air entering the cabinet 1 after the cooling fan 4 works and rotates brings the heat in the cabinet 1 to the heat exchange tube 6;

[0058] The cold water in the cold water cavity of the water storage tank 61 is transported to the spiral cavity 63 in the wall of the heat exchange tube 6 through the circulating pump 62 and the water pumping pipe 621. The cold water circulates in the spiral cavity 63 from bottom to top, exchanges heat with the air that absorbs heat in the heat exchange tube 6, and cools the hot air in the heat exchange tube 6. The cold water after heat exchange enters the return water cavity of the water storage tank 61 through the return pipe 64, thereby avoiding a high temperature around the low-voltage switch cabinet body 1.

[0059] A guide top 14 is provided on the top of the inner wall of the cabinet 1, and an inclined guide groove 141 is provided at one end of the guide top 14 close to the connecting terminal 5 to prevent condensation when the air with relatively high humidity and relatively high temperature hits the surface of the inner wall of the cabinet 1 with relatively low temperature. A hydrophilic coating material is provided on the guide groove 141 to allow water to crawl on the surface of the material at a low angle, thereby reducing condensation formed due to the temperature difference between cold and warm temperatures. The inclined guide groove 141 allows the water crawling on the surface of the material at a low angle to flow along the corners of the guide groove 141 under the action of gravity, and gather into water droplets, and finally enter the collection box 15.

[0060] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An unattended low-voltage switch cabinet, characterized in that: include: A cabinet (1), an opening and closing mechanism, a plurality of anti-wire off mechanisms and a cooling and heat dissipation mechanism, wherein a plurality of heat dissipation holes (11) are provided on the outer wall of the cabinet (1), and mounting grooves are provided on the inner wall of the cabinet (1) at positions corresponding to the heat dissipation holes (11), the cabinet (1) is provided with a cabinet door (12), and a temperature and humidity monitor (3) and a plurality of heat dissipation fans (4) are provided on the cabinet door (12), a connection terminal (5) and a plurality of wires (51) are installed in the cabinet (1), and a guide top (14) is provided on the top of the inner wall of the cabinet (1), and a guide groove (141) is provided on the guide top (14); The opening and closing mechanism is arranged in a mounting groove on the inner wall of the cabinet (1), and the opening and closing mechanism is used to dissipate the local heat in the cabinet (1) to adjust the wind direction; The anti-offline mechanism is arranged on the connection terminal (5), and is used to remind the staff whether the wire (51) and the connection terminal (5) are loose or detached, so as to facilitate the staff to quickly reconnect them; The cooling and heat dissipation mechanism is arranged on the cabinet door (12), and is used to dissipate the heat of the air that takes away the heat in the cabinet (1).

2. The unattended low-voltage switch cabinet according to claim 1, characterized in that: The opening and closing mechanism comprises: a fixed frame (2), a plurality of sealing baffles (21), a plurality of connecting rods (22), a cylinder (23) and a push rod (24); the fixed frame (2) is fixedly mounted in a mounting groove of the cabinet (1); a plurality of rotating shafts are rotatably connected in the fixed frame (2); the plurality of sealing baffles (21) are respectively fixedly connected to the plurality of rotating shafts; one end of the connecting rod (22) is rotatably connected to the rotating shaft, and the other end is rotatably connected to the push rod (24); the cylinder (23) is fixedly mounted on the top inner wall of the cabinet (1); and the output end of the cylinder (23) is fixedly connected to the push rod (24).

3. The unattended low-voltage switch cabinet according to claim 2 is characterized in that: The sealing baffle (21) is provided with a sealing rubber strip.

4. The unattended low-voltage switch cabinet according to claim 1 is characterized in that: A dustproof filter is provided between the heat dissipation hole (11) and the opening and closing mechanism.

5. The unattended low-voltage switch cabinet according to claim 1 is characterized in that: The connecting terminal (5) is provided with a plurality of mounting holes and a plurality of mounting screws, and the connecting terminal (5) is connected to the multi-strand wire (51) via the mounting holes and the mounting screws. The connecting terminal (5) is provided with a mounting plate (52), and the mounting plate (52) is provided with a circular hole at a position corresponding to the mounting hole. The mounting plate (52) is provided with a mounting cavity, and a parallel circuit is provided in the mounting cavity. The parallel circuit is provided with a plurality of conductive mounting plates. The mounting plate (52) is provided with a plurality of plug holes, and the conductive mounting plates are installed at the bottom of the plug holes.

6. The unattended low-voltage switch cabinet according to claim 5, characterized in that: The anti-offline mechanism comprises: a group of limit plates (53), a buckle ring (54), a warning light (542), a group of power connection posts (5421) and a group of springs (55); the group of limit plates (53) are symmetrically arranged on both sides of the mounting hole; one end of the group of limit plates (53) close to each other is provided with a limit sliding groove (531); the buckle ring (54) is arranged between the group of limit plates (53); a group of sliders (541) are fixedly connected to the side wall of the buckle ring (54); the sliders (541) are arranged in the limit sliding groove (531); one end of the spring (55) is fixedly connected to the slider (541), and the other end is fixedly connected to the mounting buckle plate (52); The buckle ring (54) is provided with a mounting connection hole, the warning light (542) is arranged in the mounting connection hole, a group of conductive pins are connected to the warning light (542), and the group of conductive pins are respectively connected to a group of power connection posts (5421), the power connection posts (5421) are inserted in the insertion hole, and the power connection posts (5421) are in contact with the conductive mounting sheet.

7. The unattended low-voltage switch cabinet according to claim 6, characterized in that: A group of the limiting plates (53) are provided with semicircular holes at one end close to each other, the wires (51) are clamped in the group of semicircular holes, and rubber strips are provided in the semicircular holes.

8. The unattended low-voltage switch cabinet according to claim 1, characterized in that: The cabinet door (12) is provided with a plurality of circular mounting holes, and the plurality of cooling fans (4) are respectively mounted in the plurality of circular mounting holes. A connecting pipe (65) is provided at one end of the circular mounting hole away from the cabinet body (1).

9. The unattended low-voltage switch cabinet according to claim 8, characterized in that: The cooling and heat dissipation mechanism comprises: a heat exchange tube (6), a water storage tank (61), a circulation pump (62), a water pumping pipe (621), a water supply pipe (622) and a return pipe (64); the heat exchange tube (6) is respectively connected to a plurality of connecting pipes (65); a spiral cavity (63) is provided in the tube wall of the heat exchange tube (6); the water storage tank (61) is fixedly mounted on the cabinet door (12); the circulation pump (62) is fixedly mounted on the water storage tank (61); a partition is provided in the water storage tank (61); the partition divides the water storage tank (61) into a cold water cavity and a return water cavity; One end of the circulation pump (62) is connected to the cold water chamber of the water storage tank (61) through a water pumping pipe (621), and the other end is connected to the spiral chamber (63) through a water supply pipe (622); one end of the spiral chamber (63) away from the water supply pipe (622) is connected to a return pipe (64), and one end of the return pipe (64) away from the spiral chamber (63) is connected to the return water chamber of the water storage tank (61).

10. The unattended low-voltage switch cabinet according to claim 1, characterized in that: A plurality of supporting legs (13) are provided at the bottom of the cabinet (1), and a plurality of collecting boxes (15) are provided inside the cabinet (1).

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