A vertical copper bar structure with good heat dissipation effect and a low-voltage drawer cabinet

Abstract

The present invention belongs to the technical field of low-voltage drawer cabinets, and discloses a vertical copper bar structure with good heat dissipation effect and a low-voltage drawer cabinet. The vertical copper bar structure with good heat dissipation effect comprises a heat dissipation copper bar, which is vertically installed in a U shape and has multiple heat dissipation copper bars, and the multiple heat dissipation copper bars form multiple heat dissipation channels. The outer wall of the heat dissipation copper bar is installed with a heat dissipation coil. The present invention accelerates the heat dissipation efficiency of the drawer cabinet by arranging the heat dissipation copper bar and forming the heat dissipation channel, thereby preventing the internal temperature of the drawer cabinet from being too high and improving the heat dissipation effect of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of low-voltage drawer cabinets, and particularly relates to a vertical copper busbar structure with good heat dissipation effect and a low-voltage drawer cabinet Background Art

[0002] Low-voltage drawer cabinet is an important electrical equipment, which is widely used in various electrical system construction, especially in residential, commercial buildings, hospitals, schools, factories and other places. Low-voltage drawer cabinet is a closed shell made of steel plate. The electrical components of the incoming and outgoing line circuits are installed in the drawer, forming a functional unit that can complete a certain type of power supply task. It has the characteristics of compact structure, beautiful appearance, easy installation, and high reliability, safety and interchangeability. Low-voltage drawer cabinet can easily introduce low-voltage cables in different directions and positions to realize power distribution and transmission. The cabinet is equipped with multiple protection and control electrical appliances, such as current transformers, relays, etc., to ensure the safe and stable operation of the electrical system. Low-voltage drawer cabinet can be used as an installation carrier for various electrical equipment, which is convenient for workers to install and maintain equipment.

[0003] The heat dissipation vents of low-voltage drawer cabinets are generally located on the back, and the drawer cabinets are generally placed against the wall. In the hot summer weather, the heat inside the drawer cabinet is not easy to dissipate outwards, and the heat accumulation inside the drawer cabinet can easily cause a fire. In addition, the high temperature in summer will increase the probability of fire. In addition, in the event of an accident, the drawer cabinet will explode due to the rapid accumulation of heat on the back when a fire occurs. Since the back is a wall, the main direction of the explosion will be toward the operating surface of the drawer cabinet, which will bring huge safety hazards to the operator. Summary of the invention

[0004] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a vertical copper busbar structure and a low-voltage drawer cabinet with good heat dissipation effect, which solves the problem of low heat dissipation efficiency in the prior art.

[0005] The object of the present invention can be achieved by the following technical solution: A vertical copper busbar structure with good heat dissipation effect, comprising a heat dissipation copper busbar;

[0006] The heat dissipation copper bar is vertically installed in a U shape, and has multiple heat dissipation copper bars, which form multiple heat dissipation channels.

[0007] A low-voltage drawer cabinet comprises: a heat dissipation copper bar, a cabinet body, a flow guide component, a cooling component and a partition plate, wherein the heat dissipation copper bar is installed on the inner rear wall of the cabinet body;

[0008] A flow guide component is installed on the top of the cabinet, a cooling component is installed on an outer wall of one side of the cabinet, and a partition plate is installed on the inner wall of the cabinet.

[0009] In some disclosures, a plurality of brackets are installed on the inner wall of the cabinet, a plurality of drawers are installed on the front of the cabinet, and the drawers are slidably connected inside the bracket, two handles are installed on the front of the drawer, a switch is installed on the front of the drawer, and the handles are located on both sides of the switch, a heat dissipation hole is opened on the top of the cabinet, and the guide assembly is located above the heat dissipation hole, a plurality of drawer partition boards are installed on the inner wall of the bracket, a heat dissipation coil is installed on the inner wall of the drawer partition board, the drawer is located above the drawer partition board, a reserved hole is installed on the back of the bracket, a heat dissipation copper busbar is installed on the back of the bracket, a copper busbar installation function board is installed on the back of the heat dissipation copper busbar, and the heat dissipation copper busbar and the bracket are fixedly connected through the copper busbar installation function board.

[0010] In some disclosures, a first fan is installed on the inner bottom wall of the cabinet, an interception net is installed on the inner wall of the cabinet, and the interception net is located above the first fan, and the heat dissipation copper bar is located above the interception net.

[0011] In some disclosures, the cooling component includes a storage box installed on the outer wall of the cabinet, a liquid inlet pipe is installed on the top of the storage box, a rotating shaft is installed through the inner wall of the storage box, and one end of the rotating shaft extends into the interior of the cabinet, the rotating shaft is located above the heat dissipation copper bar, and a plurality of fan blades are installed on the outer wall of the rotating shaft located inside the cabinet, and the fan blades are all located in the heat dissipation channel formed by the heat dissipation copper bar, an arc-shaped first fixed plate is installed on the inner rear wall of the storage box, a hose is installed on the outer wall of the first fixed plate, and one end of the hose extends out of the bottom of the storage box, and the bottom end of the hose is connected to one end of the heat dissipation coil, and a one-way valve is installed on the outer wall of the hose.

[0012] In some disclosures, a limit strip is installed on the outer wall of the rotating shaft located inside the storage box, a sliding ring is slidably installed on the outer wall of the rotating shaft, a limit groove is installed on the inner wall of the sliding ring, and the limit groove is slidably connected with the limit strip, a second fixed plate is installed on the outer wall of the rotating shaft, a return spring is installed on the outer wall of the second fixed plate, and one end of the return spring is fixedly connected to the outer wall of the sliding ring, a plurality of squeezing rollers are installed on the outer wall of the sliding ring, and the squeezing rollers squeeze the hose when they rotate through it.

[0013] In some disclosures, the diversion assembly includes a fixed frame installed above the cabinet, a drive box is installed on the outer wall of one side of the fixed frame, a motor is installed on the inner wall of the drive box, a first gear is installed on the output end of the motor, a plurality of rotating rods are installed on the inner wall of the drive box, and one end of the rotating rod extends out of the outer wall of the drive box, a second gear is installed on the outer wall of the rotating rod, a chain is installed around the outer wall of the first gear, and the first gear and the second gear are connected by a chain transmission, and a guide plate is installed on the outer wall of the rotating rod.

[0014] In some disclosures, a plurality of copper tubes are installed on the inner wall of the fixing frame, a plurality of heat dissipation fins are installed on the outer wall of the copper tubes, a plurality of second fans are installed on the inner bottom wall of the fixing frame, and a plurality of third fans are installed on the top of the fixing frame.

[0015] In some disclosures, a trigger assembly is installed on the inner rear wall of the cabinet, and the trigger assembly includes a protective tube installed on the inner rear wall of the cabinet, a heat-conducting rod is installed through the inner wall of the protective tube, and the bottom end of the heat-conducting rod is fixedly connected to the heat dissipation copper bus, a No. 1 plate is installed on the inner wall of the protective tube, a sealing plate is installed on the inner wall of the protective tube for sliding sealing, and the side of the sealing plate close to the No. 1 plate is filled with heat-expanding gas, a No. 2 plate is installed on the inner wall of the protective tube, a No. 1 spring is installed on the outer wall of the No. 2 plate, and one end of the No. 1 spring is fixedly connected to the outer wall of the sealing plate, and a moving rod is installed on the outer wall of the sealing plate.

[0016] In some disclosures, a first fixed ring is installed on the inner bottom wall of the protective tube, a through hole is opened at one end of the movable rod, two guide wheels are installed on the inner wall of the storage box, the outer wall of the first fixed ring is connected to a cable, the cable passes through the through hole and passes through the two guide wheels to be connected to the outer wall of the sliding ring, a second fixed ring is installed on the inner wall of the protective tube, and the outer wall of the second fixed ring is connected to a cable.

[0017] In some disclosures, a plurality of partitions are installed on the inner wall of the cabinet, and the partitions are located between two drawers, a corrugated plate is installed on the inner wall of the partition, and the top of the corrugated plate is filled with dry powder fire extinguishing agent, a plurality of discharge holes are opened at the bottom of the partition, and the discharge holes are located below the trough of the corrugated plate, a third fixed plate is installed at the bottom of the partition, a cover plate is slidably installed at the bottom of the partition, a No. 2 spring is installed on the outer wall of the cover, one end of the No. 2 spring is fixedly connected to the outer wall of the third fixed plate, a third fixed ring is installed on the outer wall of the cover, and the third fixed ring is connected to the second fixed ring through a cable.

[0018] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0019] A fixed connection is one where the parts or components are fixed without any relative movement;

[0020] A rotational connection is a connection between parts that allows the parts to rotate relative to each other;

[0021] Threaded connection is a detachable fixed connection with the advantages of simple structure, reliable connection, and convenient assembly and disassembly. It is widely used in the fields of mechanical engineering and connection structures.

[0022] A sliding connection is a connection between parts that allows the parts to slide against each other.

[0023] Beneficial effects of the present invention:

[0024] 1. The present invention provides a heat dissipation copper bar and forms a heat dissipation channel, thereby accelerating the heat dissipation efficiency of the drawer cabinet, preventing the internal temperature of the drawer cabinet from being too high, and improving the heat dissipation effect of the device.

[0025] 2. The present invention can automatically cool the drawer cabinet by pneumatically cooling the coolant when the temperature inside the drawer cabinet rises by setting a trigger component and a cooling component. After absorbing the heat, the coolant is cooled through the copper tube at the exhaust port, so that the coolant can circulate to cool the heat dissipation copper bar. In addition, by using the air exhausted from the cabinet itself to dissipate heat, resource consumption can be reduced.

[0026] 3. The present invention can guide the exhausted hot air to other directions by arranging a guide component to prevent the hot air from accumulating near the cabinet. In addition, when the guide plate guides the air upward, it can also be accelerated for a second time by the fan inside the fixed frame, and the temperature of the hot air is greatly reduced. The air after the temperature is reduced can also dissipate heat to the copper tube, thereby allowing the coolant to dissipate heat, making it convenient for the coolant to be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 Schematic diagram of the heat dissipation copper bar structure of an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall structure of a drawer cabinet according to an embodiment of the present invention;

[0030] Figure 3 Schematic diagram of a single bracket structure inside a drawer cabinet according to an embodiment of the present invention;

[0031] Figure 4 is a schematic diagram of the back structure of a frame according to an embodiment of the present invention;

[0032] Figure 5 It is a schematic diagram of the structure of part of the interception network of an embodiment of the present invention;

[0033] Figure 6 is a schematic diagram of the structure of a fan blade portion of an embodiment of the present invention;

[0034] Figure 7 is a schematic diagram of the front view structure of a storage box according to an embodiment of the present invention;

[0035] Figure 8 is a schematic diagram of the side structure of a storage box according to an embodiment of the present invention;

[0036] Fig. 9 is a schematic diagram of a partial exploded structure of a sliding ring according to an embodiment of the present invention;

[0037] Fig.10Schematic diagram of the partial structure of the fixing bracket according to an embodiment of the present invention;

[0038] Fig.11 Schematic diagram of the sectional structure of the drive box according to an embodiment of the present invention;

[0039] Fig.12 Schematic diagram of the partial structure of the copper tube according to an embodiment of the present invention;

[0040] Fig.13 Schematic diagram of the partial structure of the protection tube according to an embodiment of the present invention;

[0041] Fig.14 Schematic diagram of the partial structure of the partition board according to an embodiment of the present invention;

[0042] Fig.15 Schematic diagram of the bottom structure of the partition board according to an embodiment of the present invention.

[0043] In the figure: 1, cabinet body; 11, bracket; 12, drawer; 13, handle; 14, switch; 15, drawer partition board; 16, reserved hole; 17, copper row installation function board; 2, first fan; 21, intercepting net; 22, heat dissipation copper row; 3, cooling component; 30, storage tank; 31, liquid inlet pipe; 32, rotating shaft; 33, fan blade; 34, first fixing plate; 35, hose; 36, one-way valve; 4, limiting strip; 41, sliding ring; 42, limiting groove; 43, second fixing plate; 44, return spring; 45, pressing roller; 5, diversion component; 50, fixing bracket; 51, drive box; 52, motor; 53, first gear; 54, rotating rod; 55, second gear; 56, chain; 57, diversion plate; 6, copper tube; 61, heat dissipation fins; 62, second fan; 63, third fan; 7, trigger component; 70, protection tube; 71, heat conducting rod; 72, first plate; 73, sealing plate; 74, second plate; 75, first spring; 76, moving rod; 8, first fixing ring; 81, through hole; 82, guiding wheel; 83, second fixing ring; 9, partition board; 91, corrugated board; 92, discharge hole; 93, third fixing plate; 94, second spring; 95, cover plate; 96, third fixing ring. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0045] Please refer to Figure 3 and Figure 4A vertical copper bar structure with good heat dissipation effect includes a heat dissipation copper bar 22. The heat dissipation copper bar 22 is vertically installed in a U shape and has multiple heat dissipation copper bars 22 to form multiple heat dissipation channels.

[0046] Specifically, a U-shaped copper bar is used. The bottom of the U-shape is the installation position of the static contact. By matching and contacting with the moving contact installed on the unit drawer, the current is transmitted to the unit drawer for protection operation, and then the current is transmitted to the static contact at the output end through the moving and static contacts to transmit the controllable power outward. The two sides of the U-shaped copper bar are fixed on the function board through embedded installation with the function board. The upper part of the U-shaped bar is covered and protected by a functional grille module. In this way, a vertical channel is left in the middle of the U-shaped copper bar, and it runs from the bottom of the vertical copper bar to the top of the vertical copper bar. According to the law of physics: hot air rises and cold air falls, a "chimney" effect is formed, and the heat of the heating points of each contact passes through the vertical channel to the top. At the top of the vertical copper bar, the vertical channel can be extended to the outside of the cabinet top as needed to form a small chimney to take out the heat in the cabinet. Make all equipment operate within the normal working range. In addition, the heat dissipation channel can also be used as an explosion vent in the event of an unexpected failure. Explosion venting upwards reduces explosion arc spraying on the cabinet operation surface, ensuring personal safety. The use of U-shaped copper bars also greatly reduces the amount of copper bars used due to the "current skin effect". The overlap of the U-shaped copper bar is fixed with bolts, and the bottom plane of the U-shaped copper bar is in tight contact with the contact.

[0047] See also Figure 1 , Figure 2 , Figure 3 and Figure 4A low-voltage drawer cabinet comprises: a heat dissipation copper bar 22 as claimed in claim 1, a cabinet 1, a guide assembly 5, a cooling assembly 3 and a partition plate 9, the heat dissipation copper bar 22 is installed on the inner rear wall of the cabinet 1, the guide assembly 5 is installed on the top of the cabinet 1, the cooling assembly 3 is installed on one side of the outer wall of the cabinet 1, and the partition plate 9 is installed on the inner wall of the cabinet 1, a plurality of brackets 11 are installed on the inner wall of the cabinet 1, a plurality of drawers 12 are installed on the front of the cabinet 1, and the drawers 12 are slidably connected inside the brackets 11, two handles 13 are installed on the front of the drawer 12, a switch 14 is installed on the front of the drawer 12, and the handles 13 are located on both sides of the switch 14, a heat dissipation hole is opened on the top of the cabinet 1, and the guide assembly 5 is located above the heat dissipation hole. A plurality of drawer interlayer plates 15 are installed on the inner wall of the bracket 11, a heat dissipation coil is installed on the inner wall of the drawer interlayer plate 15, the drawer 12 is located above the drawer interlayer plate 15, a reserved hole 16 is installed on the back of the bracket 11, a heat dissipation copper bar 22 is installed on the back of the bracket 11, a copper bar installation function board 17 is installed on the back of the heat dissipation copper bar 22, and the heat dissipation copper bar 22 and the bracket 11 are fixedly connected through the copper bar installation function board 17, a heat dissipation hole is opened on the top of the cabinet 1, and the guide component 5 is located above the heat dissipation hole, a first fan 2 is installed on the inner bottom wall of the cabinet 1, an interception net 21 is installed on the inner wall of the cabinet 1, and the interception net 21 is located above the first fan 2, and the heat dissipation copper bar 22 is located above the interception net 21.

[0048] Specifically, a corresponding electrical switch is installed inside the drawer 12, and the switch 14 is linked with the electrical switch for control. When heat dissipation is performed, the first fan 2 works to drive the air flow, and the air flows out through the channel formed by the heat dissipation copper bus 22 to achieve the heat dissipation function. The interception net 21 prevents debris from entering the interior of the first fan 2.

[0049] See also Figure 4 , Figure 5 , Figure 6 and Figure 7The cooling assembly 3 includes a storage box 30 installed on the outer wall of the cabinet 1, a liquid inlet pipe 31 is installed on the top of the storage box 30, a rotating shaft 32 is installed through the inner wall of the storage box 30, and one end of the rotating shaft 32 extends into the interior of the cabinet 1, the rotating shaft 32 is located above the heat dissipation copper bar 22, and the outer wall of the rotating shaft 32 located inside the cabinet 1 is installed with a plurality of fan blades 33, and the fan blades 33 are all located at the heat dissipation channel formed by the heat dissipation copper bar 22, an arc-shaped first fixing plate 34 is installed on the inner rear wall of the storage box 30, a hose 35 is installed on the outer wall of the first fixing plate 34, and one end of the hose 35 extends out of the bottom of the storage box 30, and the hose 35 The bottom end is connected with one end of the heat dissipation coil, a one-way valve 36 is installed on the outer wall of the hose 35, a limit strip 4 is installed on the outer wall of the rotating shaft 32 located inside the storage box 30, a sliding ring 41 is slidably installed on the outer wall of the rotating shaft 32, a limit groove 42 is installed on the inner wall of the sliding ring 41, and the limit groove 42 is slidably connected with the limit strip 4, a second fixed plate 43 is installed on the outer wall of the rotating shaft 32, a return spring 44 is installed on the outer wall of the second fixed plate 43, and one end of the return spring 44 is fixedly connected to the outer wall of the sliding ring 41, a plurality of squeezing rollers 45 are installed on the outer wall of the sliding ring 41, and when the squeezing rollers 45 rotate through the hose 35, they squeeze the hose 35.

[0050] Specifically, when the temperature inside the drawer cabinet is high, refrigerant is used for synchronous cooling. At this time, the fan blades 33 are blown by the air discharged from the channel to drive the rotating shaft 32 to rotate, and the rotating shaft 32 drives the limit bar 4 and the limit groove 42 to rotate, so that the sliding ring 41 drives the extrusion roller 45 to rotate, and the coolant in the storage box 30 enters the hose 35. When the extrusion roller 45 squeezes the hose 35, it squeezes the coolant in the hose 35 forward, so that the coolant passes through the one-way valve 36 and then enters the heat dissipation coil to dissipate the heat from the heat dissipation copper bus 22, thereby accelerating the heat dissipation speed and preventing heat from accumulating inside the drawer cabinet.

[0051] See also Figure 8 , Fig. 9 and Fig.10 The air guide assembly 5 includes a fixed frame 50 installed above the cabinet 1, a driving box 51 is installed on the outer wall of one side of the fixed frame 50, a motor 52 is installed on the inner wall of the driving box 51, a first gear 53 is installed on the output end of the motor 52, a plurality of rotating rods 54 are installed on the inner wall of the driving box 51, and one end of the rotating rod 54 extends out of the outer wall of the driving box 51, a second gear 55 is installed on the outer wall of the rotating rod 54, a chain 56 is installed around the outer wall of the first gear 53, and the first gear 53 and the second gear 55 are connected by the chain 56, a guide plate 57 is installed on the outer wall of the rotating rod 54, a plurality of copper tubes 6 are installed on the inner wall of the fixed frame 50, a plurality of heat dissipation fins 61 are installed on the outer wall of the copper tubes 6, a plurality of second fans 62 are installed on the inner bottom wall of the fixed frame 50, and a plurality of third fans 63 are installed on the top of the fixed frame 50.

[0052] Specifically, when the hot air inside the drawer cabinet is discharged from the exhaust hole above the cabinet body 1, the motor 52 inside the driving box 51 rotates, the first gear 53 drives the chain 56 to rotate, the chain 56 drives the second gear 55 to rotate, and the rotating rod 54 drives the guide plate 57 to rotate, so that the exhausted hot air flows along the guide plate 57 to other directions, preventing the hot air from accumulating inside or on the top of the cabinet body 1;

[0053] In addition, the coolant flows in the heat dissipation copper bar 22, absorbs the heat of the heat dissipation copper bar 22, and then enters the copper tube 6. At this time, since the fixing frame 50 is located directly above the exhaust hole, the air flow rate is fast. In addition, the second fan 62 works to accelerate the air flow again. The heat of the coolant in the copper tube 6 is dissipated outward through the heat dissipation fins 61. At the same time, the third fan 63 works to take away the hot air, so that the coolant inside the copper tube 6 can be quickly cooled down and finally flow back to the storage box 30, which is convenient for re-circulation cooling, thereby speeding up the cooling speed of the drawer cabinet.

[0054] See also Figure 5 , Figure 6 , Figure 7 , Fig.11 , Fig.12 and Fig.13A trigger assembly 7 is installed on the inner rear wall of the cabinet 1. The trigger assembly 7 includes a protection tube 70 installed on the inner rear wall of the cabinet 1. A heat-conducting rod 71 is installed through the inner wall of the protection tube 70, and the bottom end of the heat-conducting rod 71 is fixedly connected to the heat dissipation copper bar 22. A No. 1 plate 72 is installed on the inner wall of the protection tube 70. A sealing plate 73 is installed on the inner wall of the protection tube 70 for sliding sealing. The side of the sealing plate 73 close to the No. 1 plate 72 is filled with thermal expansion gas. A No. 2 plate 74 is installed on the inner wall of the protection tube 70. A No. 1 spring 75 is installed on the outer wall of the No. 2 plate 74, and one end of the No. 1 spring 75 is fixedly connected to the outer wall of the sealing plate 73. A moving rod 76 is installed on the outer wall of the sealing plate 73. A first fixing ring 8 is installed on the inner bottom wall of the protection tube 70. A through hole 81 is opened at one end of the moving rod 76. Two guide wheels 82 are installed on the inner wall of the storage box 30. The outer wall of the first fixing ring 8 is connected to Cables, the cables pass through the through hole 81 and pass through two guide wheels 82 to be connected to the outer wall of the sliding ring 41, a second fixing ring 83 is installed on the inner wall of the protective tube 70, and the outer wall of the second fixing ring 83 is connected to the cables, a plurality of partition plates 9 are installed on the inner wall of the cabinet 1, and the partition plate 9 is located between the two drawers 12, a wave plate 91 is installed on the inner wall of the partition plate 9, and the top of the wave plate 91 is filled with dry powder fire extinguishing agent, a plurality of discharge holes 92 are opened at the bottom of the partition plate 9, and the discharge holes 92 are located below the trough of the wave plate 91, a third fixing plate 93 is installed at the bottom of the partition plate 9, a cover plate 95 is slidably installed at the bottom of the partition plate 9, a No. 2 spring 94 is installed on the outer wall of the cover plate 95, one end of the No. 2 spring 94 is fixedly connected to the outer wall of the third fixing plate 93, a third fixing ring 96 is installed on the outer wall of the cover plate 95, and the third fixing ring 96 is connected to the second fixing ring 83 through cables.

[0055] Specifically, when the temperature of the heat dissipation copper bar 22 is normal, the heat-conducting rod 71 transfers heat to the heat-expanding gas in the protection tube 70, and the heat-expanding gas expands slightly. When the temperature of the heat dissipation copper bar is high, the heat-expanding gas expands more, pushing the sealing plate 73 to move. The movement of the sealing plate 73 drives the moving rod 76 to move, and the No. 1 spring 75 contracts. When the moving rod 76 moves, since the cable is fixed to the first fixed ring 8, the cable will pull the other end of the cable to tighten as the moving rod 76 moves, so that the cable passes through the guide wheel 82 to pull the sliding ring 41 to move. The sliding ring 41 is initially misaligned with the first fixed plate 34. When the sliding ring 41 is pulled, The sliding ring 41 and the first fixed plate 34 are in the same plane, and the squeezing roller 45 contacts the hose 35, driving the coolant to start flowing, thereby enhancing the heat dissipation effect. In addition, when the temperature of the drawer cabinet is too high and reaches the ignition temperature, the expansion amplitude of the thermal expansion gas increases, and the sealing plate 73 drives the moving rod 76 to continue to move. One end of the moving rod 76 contacts the cable, and then one end of the cable is tightened. One end of the cable pulls the third fixed ring 96, and the movement of the third fixed ring 96 drives the cover plate 95 to move, thereby exposing the discharge hole 92. The dry powder fire extinguishing agent on the wave plate 91 flows out from the discharge hole 92 to extinguish the fire inside each drawer, thereby realizing the fire fighting function. When the cover plate 95 moves, it will pull the second spring 94 to extend;

[0056] The use of the wave plate 91 can effectively prevent the fire extinguishing material from accumulating inside the partition plate 9 , and the inclined surface of the wave plate 91 can also speed up the outflow of the fire extinguishing material.

[0057] Working principle: when the temperature of the heat dissipation copper bar 22 is normal, the heat-conducting rod 71 transfers the heat to the heat-expanding gas in the protection tube 70, and the heat-expanding gas expands less. When the temperature of the heat dissipation copper bar is high, the heat-expanding gas expands more, pushing the sealing plate 73 to move, and the movement of the sealing plate 73 drives the moving rod 76 to move. At the same time, the first spring 75 contracts. When the moving rod 76 moves, since the cable is fixed to the first fixing ring 8, the cable will pull the other end of the cable to tighten as the moving rod 76 moves, so that the cable passes through the guide wheel 82. The sliding ring 41 is pulled to move. The sliding ring 41 is initially misaligned with the first fixed plate 34. When the sliding ring 41 is pulled, the sliding ring 41 and the first fixed plate 34 are in the same plane, and the squeezing roller 45 contacts the hose 35. The fan blade 33 is blown by the air discharged from the channel to drive the rotating shaft 32 to rotate. The rotating shaft 32 drives the limiting strip 4 and the limiting groove 42 to rotate, so that the sliding ring 41 drives the squeezing roller 45 to rotate, and the coolant in the storage box 30 enters the hose 35. When the squeezing roller 45 squeezes the hose 35, the coolant in the hose 35 is squeezed. The cooling liquid is squeezed forward, so that the cooling liquid passes through the one-way valve 36 and then enters the heat dissipation coil to dissipate heat for the heat dissipation copper bar 22. The cooling liquid flows in the heat dissipation copper bar 22, absorbs the heat of the heat dissipation copper bar 22, and then enters the copper tube 6. At this time, since the fixing frame 50 is located directly above the exhaust hole, the air flow rate is fast. In addition, the second fan 62 works to accelerate the air flow again. The heat of the cooling liquid in the copper tube 6 is dissipated outward through the heat dissipation fins 61. At the same time, the third fan 63 works to take away the hot air, so that the cooling liquid inside the copper tube 6 can be quickly cooled down. Finally, It flows back into the storage box 30, which is convenient for re-circulation cooling and speeds up the cooling speed of the drawer cabinet. When the temperature of the drawer cabinet is too high and reaches the ignition temperature, the thermal expansion gas expands more, and the sealing plate 73 drives the moving rod 76 to continue to move. One end of the moving rod 76 contacts the cable and then one end of the cable is tightened. One end of the cable pulls the third fixing ring 96. The movement of the third fixing ring 96 drives the cover plate 95 to move, thereby exposing the discharge hole 92. The dry powder fire extinguishing agent on the wave plate 91 flows out from the discharge hole 92 to extinguish the fire inside each drawer, thereby realizing the fire fighting function.

[0058] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A low voltage drawer cabinet, characterized in that: include: A heat dissipation copper bar (22), a cabinet (1), a flow guide assembly (5), a cooling assembly (3), and a partition plate (9), wherein the heat dissipation copper bar (22) is mounted on an inner rear wall of the cabinet (1); The heat dissipation copper bar (22) is vertically installed in a U shape, and has a plurality of heat dissipation copper bars (22), wherein the plurality of heat dissipation copper bars (22) form a plurality of heat dissipation channels; A flow guide assembly (5) is installed on the top of the cabinet (1), a cooling assembly (3) is installed on an outer wall of one side of the cabinet (1), and a partition plate (9) is installed on the inner wall of the cabinet (1); The air guide assembly (5) comprises a fixing frame (50) mounted above the cabinet (1); a driving box (51) is mounted on an outer wall of one side of the fixing frame (50); a motor (52) is mounted on an inner wall of the driving box (51); a first gear (53) is mounted on an output end of the motor (52); a plurality of rotating rods (54) are mounted on the inner wall of the driving box (51); one end of the rotating rod (54) extends out of the outer wall of the driving box (51); a second gear (55) is mounted on the outer wall of the rotating rod (54); a chain (56) is mounted around the outer wall of the first gear (53); the first gear (53) and the second gear (55) are connected in transmission via the chain (56); and an air guide plate (57) is mounted on the outer wall of the rotating rod (54).

2. A low voltage drawer cabinet according to claim 1, characterized in that: The inner wall of the cabinet (1) is provided with a plurality of brackets (11); the front of the cabinet (1) is provided with a plurality of drawers (12), and the drawers (12) are slidably connected inside the brackets (11); two handles (13) are provided on the front of the drawers (12); a switch (14) is provided on the front of the drawers (12), and the handles (13) are located on both sides of the switch (14); a heat dissipation hole is provided on the top of the cabinet (1), and the guide assembly (5) is located above the heat dissipation hole; the brackets (11) The inner wall of the drawer interlayer plate (15) is installed with a plurality of drawer interlayer plates (15), the inner wall of the drawer interlayer plate (15) is installed with a heat dissipation coil, the drawer (12) is located above the drawer interlayer plate (15), the back of the bracket (11) is installed with a reserved hole (16), the heat dissipation copper bar (22) is installed on the back of the bracket (11), the back of the heat dissipation copper bar (22) is installed with a copper bar installation function board (17), and the heat dissipation copper bar (22) and the bracket (11) are fixedly connected via the copper bar installation function board (17).

3. A low voltage drawer cabinet according to claim 2, characterized in that: A first fan (2) is installed on the inner bottom wall of the cabinet (1), an interception net (21) is installed on the inner wall of the cabinet (1), and the interception net (21) is located above the first fan (2), and a heat dissipation copper bar (22) is located above the interception net (21).

4. A low voltage drawer cabinet according to claim 1, characterized in that: The cooling assembly (3) comprises a storage box (30) mounted on the outer wall of the cabinet (1), a liquid inlet pipe (31) being mounted on the top of the storage box (30), a rotating shaft (32) being mounted through the inner wall of the storage box (30), and one end of the rotating shaft (32) extending into the interior of the cabinet (1), the rotating shaft (32) being located above the heat dissipation copper bar (22), a plurality of fan blades (33) being mounted on the outer wall of the rotating shaft (32) located inside the cabinet (1), and the fan blades (33) being all located at the heat dissipation channel formed by the heat dissipation copper bar (22), an arc-shaped first fixing plate (34) being mounted on the inner rear wall of the storage box (30), a hose (35) being mounted on the outer wall of the first fixing plate (34), and one end of the hose (35) extending out of the bottom of the storage box (30), and the bottom end of the hose (35) being connected to one end of the heat dissipation coil, and a one-way valve (36) being mounted on the outer wall of the hose (35).

5. A low voltage drawer cabinet according to claim 4, characterized in that: The outer wall of the rotating shaft (32) located inside the storage box (30) is installed with a limit strip (4), the outer wall of the rotating shaft (32) is slidably installed with a sliding ring (41), the inner wall of the sliding ring (41) is installed with a limit groove (42), and the limit groove (42) is slidably connected with the limit strip (4), the outer wall of the rotating shaft (32) is installed with a second fixing plate (43), the outer wall of the second fixing plate (43) is installed with a return spring (44), and one end of the return spring (44) is fixedly connected with the outer wall of the sliding ring (41), and the outer wall of the sliding ring (41) is installed with a plurality of squeezing rollers (45), and when the squeezing rollers (45) rotate and pass through the hose (35), they squeeze the hose (35).

6. A low voltage drawer cabinet according to claim 1, characterized in that: A plurality of copper tubes (6) are installed on the inner wall of the fixing frame (50), a plurality of heat dissipation fins (61) are installed on the outer wall of the copper tube (6), a plurality of second fans (62) are installed on the inner bottom wall of the fixing frame (50), a plurality of third fans (63) are installed on the top of the fixing frame (50), one end of the copper tube (6) is connected to one end of the heat dissipation coil, and the other end of the copper tube (6) extends into the interior of the storage box (30).

7. A low voltage drawer cabinet according to claim 1, characterized in that: The inner rear wall of the cabinet (1) is installed with a trigger assembly (7), and the trigger assembly (7) comprises a protection tube (70) installed on the inner rear wall of the cabinet (1); a heat-conducting rod (71) is installed through the inner wall of the protection tube (70), and the bottom end of the heat-conducting rod (71) is fixedly connected to the heat dissipation copper bar (22); a No. 1 plate (72) is installed on the inner wall of the protection tube (70); a sealing plate (73) is installed on the inner wall of the protection tube (70) in a sliding seal, and a side of the sealing plate (73) close to the No. 1 plate (72) is filled with heat expansion gas; a No. 2 plate (74) is installed on the inner wall of the protection tube (70), and a No. 1 spring (75) is installed on the outer wall of the No. 2 plate (74), and one end of the No. 1 spring (75) is fixedly connected to the outer wall of the sealing plate (73); and a moving rod (76) is installed on the outer wall of the sealing plate (73).

8. A low voltage drawer cabinet according to claim 7, characterized in that: A first fixing ring (8) is installed on the inner bottom wall of the protection tube (70); a through hole (81) is opened at one end of the moving rod (76); two guide wheels (82) are installed on the inner wall of the storage box (30); a cable is connected to the outer wall of the first fixing ring (8); the cable passes through the through hole (81) and passes through the two guide wheels (82) to be connected to the outer wall of the sliding ring (41); a second fixing ring (83) is installed on the inner wall of the protection tube (70); and a cable is connected to the outer wall of the second fixing ring (83).

9. The low voltage drawer cabinet according to claim 1, characterized in that: The inner wall of the cabinet (1) is provided with a plurality of partition plates (9), and the partition plates (9) are located between two drawers (12). The inner wall of the partition plates (9) is provided with a wave plate (91), and the upper part of the wave plate (91) is filled with dry powder fire extinguishing agent. The bottom of the partition plates (9) is provided with a plurality of discharge holes (92), and the discharge holes (92) are located below the trough of the wave plate (91). The bottom of the partition plates (9) is provided with a third fixed plate (93), and the bottom of the partition plates (9) is slidably provided with a cover plate (95), and the outer wall of the cover plate (95) is provided with a second spring (94), and one end of the second spring (94) is fixedly connected to the outer wall of the third fixed plate (93). The outer wall of the cover plate (95) is provided with a third fixed ring (96), and the third fixed ring (96) is connected to the second fixed ring (83) via a cable.

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