Power box capable of dissipating heat and convenient to maintain

Abstract

The invention provides a heat-dissipating and convenient-to-maintain power box. The heat-dissipating and convenient-to-maintain power box comprises a cabinet body, a telescopic assembly, an expansion assembly and a fixed plate, each fixing plate is provided with a ventilation hole channel, the fixing plates are provided with components corresponding to the ventilation hole channels, and fans are arranged in the ventilation hole channels. The telescopic assembly is arranged on the inner bottom wall of the cabinet body, and a moving plate is connected to the telescopic assembly; the expansion assembly comprises two vertical shear type telescopic frames which are spaced left and right, a plurality of transverse shear type telescopic frames which are spaced up and down and a lifting plate. The vertical shear type telescopic frame is assembled on the movable plate; through the arrangement of the ventilation hole channel, the fan can blow cold air into the ventilation hole channel, then the cold air flows in the ventilation hole channel, the cold air blown into the ventilation hole channel can be conveyed to a component installed on the fixing plate, heat dissipation is conducted on the component, the flowing of the cold air can take away heat near the component, and the heat dissipation efficiency of the component is improved. And the heat dissipation effect of the component is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, in particular to an electric power box which is heat-dissipating and easy to maintain. Background Art

[0002] A standby zero-loss power box is a type of power equipment that can reduce energy consumption when not in use, thereby achieving zero loss. This type of power box usually contains components such as smart meters, air switches, fans, and is equipped with an automatic heat dissipation device to maintain the internal equipment at a suitable operating temperature. When the heat generated by the internal equipment reaches a certain threshold, the automatic heat dissipation device will start to dissipate heat through the fan to prevent the equipment from overheating and damage, and ensure the normal operation of the power box.

[0003] The patent with the patent publication number CN104196745B discloses a power box that is heat-dissipating and easy to maintain. The bimetallic strip of this patent is also called a thermal bimetallic strip. Since the thermal expansion coefficients of the component layers are different, when the temperature changes, the deformation of the active layer is greater than that of the passive layer, so that the bimetallic strip as a whole will bend toward the passive layer, and the curvature of the composite material will change, resulting in deformation. Among them, the one with a higher expansion coefficient is called the active layer; the one with a lower expansion coefficient is called the passive layer. However, with the expansion of the application field of bimetallic and the advancement of bonding technology, in fact, all composite materials that change shape depending on temperature changes are still customarily called thermal bimetallic.

[0004] Although the above patents can solve the problem of cooling the inside of the integrated circuit and extending the components out of the electric control cabinet for maintenance, there are still the following disadvantages: 1. At present, the heat in the cabinet is generally discharged by a fan to achieve the purpose of heat dissipation and cooling, but it is far away from the components, resulting in the heat of the components cannot be discharged, making the heat dissipation and cooling effect of the components poor; 2. Long-term use of the heat dissipation system to dissipate heat and cool the components requires regular cleaning and maintenance of the heat dissipation system. At present, construction personnel are required to drill into the cabinet for maintenance, which makes maintenance inconvenient for construction personnel and even causes bumps, reducing the maintenance effect. Summary of the invention

[0005] The purpose of the present invention is to provide a power box that is easy to dissipate heat and maintain, aiming to solve the problem in the prior art that construction workers need to drill into the cabinet to perform maintenance on the heat dissipation system for components, which causes inconvenience to construction workers.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: the power box with heat dissipation and convenient maintenance comprises a cabinet, a telescopic component, an expansion component and a fixing plate; Each of the fixing plates is provided with a ventilation channel, and the fixing plates are equipped with components corresponding to the ventilation channel, and a fan is provided in the ventilation channel; The telescopic component is arranged on the inner bottom wall of the cabinet, and a movable plate is connected to the telescopic component; The expansion assembly includes two vertical scissor-type telescopic frames spaced left and right, a plurality of horizontal scissor-type telescopic frames spaced up and down, and a lifting plate; the vertical scissor-type telescopic frames are assembled on the movable plate, a vertical shaft seat is provided at the intersection of the vertical scissor-type telescopic frames, a vertical connecting seat is provided on the lifting plate, the vertical shaft seat is connected to the vertical connecting seat, a first telescopic device extending in the up-down direction is fixedly provided at the lower rear end of the movable plate, and the end of the movable rod of the first telescopic device is fixedly connected to the uppermost lifting plate, so that the vertical scissor-type telescopic frame drives the lifting plate to expand evenly from bottom to top; The lifting plate is provided with a second limiting sliding groove which is transparent on the left and right and opens to the rear; a transverse axle seat is provided at the intersection of the transverse scissor-type telescopic frame, and the transverse axle seat is slidably inserted in the second limiting sliding groove; the transverse scissor-type telescopic frame is connected to a plurality of fixed plates; two second telescopic devices which are spaced apart and extend left and right are fixedly provided on the lifting plate; the movable rod ends of the two second telescopic devices are respectively connected to the left and right sides of the transverse scissor-type telescopic frame, so that the transverse scissor-type telescopic frame is driven to expand relative to or opposite to each other in the left and right directions.

[0007] Preferably, the telescopic assembly comprises a first drive device and a lead screw; The first driving device is fixedly mounted on the inner bottom wall of the cabinet, and the output end of the first driving device is transmission-connected to the lead screw to rotate the lead screw; The movable plate is sleeved on the lead screw and is threadedly connected with the lead screw. A limiting groove with an upward opening is provided on the inner bottom wall of the cabinet. When the lead screw rotates, the movable plate moves forward and backward along the limiting groove.

[0008] Preferably, a plurality of branching grooves spaced apart vertically are provided on the inner side wall of the cabinet, a wave groove is provided at the lower end of each branching groove, the branching grooves are communicated with the wave groove, and a top bending assembly is provided at the bends of the wave groove. When the movable plate is pushed out of the cabinet, the circuit of the component squeezes the top bending assembly, so that the circuit in the wave groove is in a straight line state; when the movable plate is retracted into the cabinet, the top bending assembly pushes the circuit toward the bend of the glass groove, so that the circuit in the wave groove is in a wavy shape.

[0009] Preferably, the movable plate is provided with a first limit sliding groove which is vertically arranged and opens toward the rear, and when the first telescopic device is telescoped, it can drive the lifting plate to move up and down along the first limit sliding groove.

[0010] Preferably, when the two second telescopic devices are telescoped, they can drive the fixed plate to move left and right along the second limiting sliding groove.

[0011] Preferably, the fixing plate is provided with a detachable anti-falling component, the anti-falling component is buckled on the component, and the anti-falling component is clamped with the circuit of the component.

[0012] Preferably, the anti-falling assembly includes a telescopic plate, a telescopic rod and a buckle assembly; The telescopic plate is fixed on the fixed plate by bolts, the telescopic rod is fixed on the telescopic plate, and the buckle assembly is fixed on the telescopic rod.

[0013] Preferably, the buckle assembly includes a fixing seat and a flip seat; the fixing seat is on the telescopic rod, and the fixing seat is fixed to the fixing plate by bolts; The flip seat is rotatably arranged on the fixed seat, a buckle is fixedly arranged on the flip seat, and a clamping block is fixedly arranged on the fixed seat. When the flip seat is buckled on the fixed seat, the buckle is clamped with the clamping block, so that the fixed seat and the flip seat are clamped together.

[0014] Preferably, a clamping assembly is provided in both the fixed seat and the flip seat, and the clamping assembly includes a first spring and an arc plate, the first spring is respectively fixed on the inner side walls of the fixed seat and the flip seat, and the other end of the first spring is fixedly connected to the arc plate, so that the arc plate is clamped on the circuit of the component.

[0015] Preferably, a flip door is rotatably provided on the outer side of the cabinet.

[0016] The beneficial effects are: 1. Through the setting of the ventilation holes, the fan can blow cold air into the ventilation holes, and then the cold air flows in the ventilation holes, so that the cold air blown into the ventilation holes can be transported to the components installed on the fixed plate to dissipate the heat of the components. The flow of cold air can take away the heat near the components, greatly improving the heat dissipation effect of the components.

[0017] 2. The setting of the telescopic component enables the movable plate to be pushed out of the cabinet, driving the start of the first driving device, so that the output end of the first driving device can drive the lead screw to rotate, and when the lead screw rotates, it can drive the movable plate to move along the cabinet. After the movable plate moves out of the cabinet, the components on the movable plate can be conveniently repaired.

[0018] 3. By starting the vertical scissor-type telescopic frame and the horizontal scissor-type telescopic frame, multiple fixed plate machines can be expanded to adjust the distance between the fixed plates, making it convenient for maintenance personnel to maintain them.

[0019] 4. The arrangement of the branching groove and the wave groove ensures that when the movable plate is pushed out of the cabinet, the circuits on the components will not be damaged due to movement. When the movable plate is in the cabinet, the top bending assembly can push the circuit to form a bent state. When the movable plate is pushed out of the cabinet, the top bending assembly can be squeezed to extend the circuit to achieve the adaptability with the movable plate.

[0020] 5. By setting up the anti-falling component, when the fixing plate is expanded, the circuit can be kept from falling off, and because the anti-falling component is stuck, the circuit and components can be better connected, thereby improving the stability of the circuit connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of a structure in which a fixing plate is extended from a cabinet in a specific embodiment of the present invention; Figure 2 is a schematic diagram of a structure in which a fixing plate is stored in a cabinet in a specific embodiment of the present invention; Figure 3 is a schematic structural diagram of a partial cross-section of a moving plate in a specific embodiment of the present invention; Figure 4 It is a structural schematic diagram of the first telescopic device driving the lifting plate to move up and down in a specific embodiment of the present invention; Figure 5 It is a structural schematic diagram of the transmission of the first telescopic device and the vertical scissor-type telescopic frame in a specific embodiment of the present invention; Figure 6 is a schematic structural diagram of an anti-falling assembly in a specific embodiment of the present invention; Figure 7 is a schematic structural diagram of a fixed plate extending laterally in a specific embodiment of the present invention; Figure 8 It is a schematic diagram of the structure of the transmission of the second telescopic device and the horizontal scissor-type telescopic frame in a specific embodiment of the present invention; Fig. 9 is a structural schematic diagram of a movable plate moving along a cabinet in a specific embodiment of the present invention; Fig.10 It is a structural schematic diagram of a line dividing groove and a wave groove in a specific embodiment of the present invention; Fig.11 In a specific embodiment of the present invention Fig.10 A schematic diagram of the enlarged structure at point A; Fig.12 is a schematic structural diagram of a partial cross-section of a clamping assembly in a specific embodiment of the present invention; Fig.13 It is a schematic diagram of the structure of the distribution of the winding wheels in the cabinet in a specific embodiment of the present invention; Fig.14It is a schematic structural diagram of the distribution of ventilation channels in a fixed plate in a specific embodiment of the present invention.

[0022] In the figure: 1. cabinet; 2. telescopic assembly; 201. first drive device; 202. lead screw; 3. extension assembly; 301. vertical scissor-type telescopic frame; 302. horizontal scissor-type telescopic frame; 4. fixed plate; 5. movable plate; 6. lifting plate; 7. components; 8. ventilation duct; 9. branching groove; 10. wave groove; 11. top bending assembly; 1101. top block; 1102. top bending spring; 12. first telescopic device; 13. second telescopic device; 14. anti-falling assembly; 1401. telescopic plate; 1402. telescopic rod; 15. fixed seat; 16. flip seat; 17. clamping assembly; 1701. first spring; 1702. arc plate; 18. flip door; 19. winding wheel. DETAILED DESCRIPTION

[0023] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] Embodiment 1. This embodiment aims to provide a power box that is heat-dissipating and easy to maintain. It is mainly used for dissipating heat for components 7 and can also facilitate the maintenance of components 7. At present, components 7 are all fixed in the cabinet 1. During maintenance, maintenance personnel need to drill into the cabinet 1 for maintenance. Due to the limited space in the cabinet 1, maintenance is restricted and maintenance personnel are easily bumped. Moreover, at present, the heat dissipation systems are all installed on the cabinet 1 to dissipate the heat in the cabinet 1, but cannot cool the heat around the components 7, resulting in poor cooling and heat dissipation effect of the components 7. In this embodiment, the components 7 can be dissipated and can also be conveniently maintained, which greatly improves the maintenance effect and the heat dissipation effect of the components 7.

[0025] Based on the above problems, Figure 1 , Figure 2 and Fig. 9 As shown, the telescopic component 2 is arranged on the inner bottom wall of the cabinet 1 , and a moving plate 5 is connected to the telescopic component 2 . Under the action of the telescopic component 2 , the moving plate 5 carrying the components 7 can be moved out of the cabinet 1 .

[0026] Specifically, the telescopic assembly 2 includes a first drive device 201 and a screw 202. In the present embodiment, the first drive device 201 is a first drive self-locking motor. The first drive device 201 is fixedly arranged on the inner bottom wall of the cabinet 1. The output end of the first drive device 201 is transmission-connected with the screw 202 to rotate the screw 202. The movable plate 5 is sleeved on the screw 202 and threadedly connected with the screw 202 to drive the first drive device 201 to start, so that the output end of the first drive device 201 can drive the screw 202 to rotate, so as to drive the movable plate 5 to move along the cabinet 1. A limiting groove with an upward opening is provided on the inner bottom wall of the cabinet 1. The screw 202 rotates to make the movable plate 5 move forward and backward along the limiting groove. The setting of the limiting groove enables the lower end of the movable plate 5 to be limited to avoid the movable plate 5 from tilting when moving.

[0027] In this embodiment, a limiting groove is also provided on the inner top wall of the cabinet 1, and the top of the movable plate 5 is slidably arranged in the limiting groove on the upper side, so that the movable plate 5 is fully limited by the limiting grooves on the upper and lower sides of the cabinet 1, so that the movable plate 5 can be more stable when moving.

[0028] like Fig.13 As shown, after the movable plate 5 is pulled out of the cabinet 1, a plurality of branching grooves 9 spaced apart from each other are provided on the inner wall of the cabinet 1. The circuits on the components 7 can be transported along the branching grooves 9 to the winding wheel 19. Driven by the winding wheel 19, the circuits can be wound.

[0029] Specifically, a winding wheel 19 is rotatably provided on the inner wall of the cabinet 1, and a coil spring is fixedly provided on the inner wall of the winding wheel 19. The coil spring is fixedly connected to the inner wall of the cabinet 1. When there is no external force, the winding wheel 19 will wind up the excess line to prevent the line from being entangled. After the movable plate 5 is pushed out of the cabinet 1, it can drive the winding wheel 19 to rotate, so that the line is pulled out, so as to avoid the line being stuck after the movable plate 5 is pushed out.

[0030] Each fixed plate 4 is provided with a ventilation channel 8, and the fixed plate 4 is equipped with components 7 corresponding to the ventilation channel 8. A fan is provided in the ventilation channel 8. In this embodiment, when the fixed plate 4 contracts, the ventilation channels 8 on the fixed plate 4 can be interconnected, so that the cold air flow in the ventilation channels 8 can flow, thereby cooling and dissipating the components 7 on the fixed plate 4.

[0031] In this embodiment, Fig.14 As shown, a fan can be provided in the ventilation channel 8, so that one is for air intake and the other is for air exhaust, so that the cold air flow in the cabinet 1 can be sucked into the ventilation channel 8, and then the cold air flow is discharged from the ventilation channel 8 after flowing, so as to achieve the effect of heat dissipation for the components 7.

[0032] like Figure 3-Figure 5As shown, the vertical scissor-type telescopic frame 301 is arranged on the movable plate 5, and a plurality of lifting plates 6 spaced apart from each other are arranged on the vertical scissor-type telescopic frame 301, so that the vertical scissor-type telescopic frame 301 drives the lifting plates 6 to extend evenly from bottom to top.

[0033] Specifically, Figure 3 and Figure 5 As shown, a first telescopic device 12 extending in the up-down direction is fixedly provided at the lower rear end of the movable plate 5. In this embodiment, the first telescopic device 12 is a first electric telescopic rod, and the movable rod end of the first telescopic device 12 is fixedly connected to the uppermost lifting plate 6; after the first telescopic device 12 is started, it can drive the uppermost lifting plate 6 to move upward, and when the uppermost lifting plate 6 moves, since the lifting plate 6 is connected to the vertical scissor-type telescopic frame 301, the vertical scissor-type telescopic frame 301 can drive the corresponding lifting plate 6 to be evenly extended and retracted. A first limit sliding groove vertically arranged and opening toward the rear is opened on the movable plate 5. When the first telescopic device 12 is extended and retracted, it can drive the lifting plate 6 to move up and down along the first limit sliding groove.

[0034] In this embodiment, a vertical shaft seat is provided at the intersection of the vertical scissor-type telescopic frame 301, and a vertical connecting seat is provided on the lifting plate 6. The vertical shaft seat is connected to the vertical connecting seat, so that when the vertical scissor-type telescopic frame 301 is extended, the lifting plate 6 can be driven to expand evenly through the vertical shaft seat. Since the position of the hinge of the vertical scissor-type telescopic frame 301 will change, the intersection of the vertical scissor-type telescopic frame 301 is connected to make the structure more stable.

[0035] like Figure 8 As shown, after the lifting plate 6 is evenly stretched, the second telescopic device 13 can drive the transverse scissor-type telescopic frame 302 to extend, so as to adjust the distance between the fixed plates 4 for better maintenance.

[0036] Specifically, each lifting plate 6 is fixed with two second telescopic devices 13 which are spaced apart and extend left and right. In the present embodiment, the second telescopic device 13 is a second electric telescopic rod. The movable rod ends of the two second telescopic devices 13 are respectively connected to the left and right sides of the transverse scissor-type telescopic frame 302. The second telescopic device 13 is driven to start, so that the second telescopic device 13 can drive the transverse scissor-type telescopic frames 302 on the left and right sides to move so as to extend the transverse scissor-type telescopic frames 302. The lifting plate 6 is provided with a second limiting sliding groove which is transparent on the left and right and has an opening facing backwards. When the two second telescopic devices 13 are extended or retracted, they can drive the fixed plate 4 to move left and right along the second limiting sliding groove. Since the fixed plate 4 is connected to the transverse scissor-type telescopic frame 302, the fixed plate 4 can be evenly expanded left and right, which is convenient for maintenance personnel to perform maintenance.

[0037] In this embodiment, a transverse axle seat is provided at the intersection of the transverse scissor-type telescopic frame 302, and the transverse axle seat is slidably inserted in the second limit sliding groove. The intersection of the transverse scissor-type telescopic frame 302 is connected to the fixed plate 4, and the movable rod ends of the two second telescopic devices 13 are respectively fixedly connected with transverse connecting plates, and the transverse connecting plates are connected to the transverse axle seats at the intersection of the transverse scissor-type telescopic frames 302 on the left and right sides, so that the left and right sides of the transverse scissor-type telescopic frame 302 can be driven to expand. Since the position of the hinge of the transverse scissor-type telescopic frame 302 will change when it is expanded, the transverse axle seat at the intersection of the transverse scissor-type telescopic frame 302 is slidably set in the second limit sliding groove to improve the stability of the fixed plate 4.

[0038] Embodiment 2: In the structure of embodiment 1, the provision of the winding wheel 19 may cause excessive bending of the line. Frequent bending may cause the line to break, thus reducing the service life of the line.

[0039] Based on the above problems, this embodiment Fig.10 and Fig.11 A plurality of branching grooves 9 spaced apart from each other are provided on the inner side wall of the cabinet 1, and a wave groove 10 is provided at the lower end of each branching groove 9. The branching grooves 9 are connected to the wave grooves 10, and a top bending component 11 is provided at the bend of the wave groove 10. In this embodiment, the top bending component 11 includes a top block 1101 and a top bending spring 1102, and the top bending spring 1102 is arranged at the bend. When the movable plate 5 is pushed out of the cabinet 1, the circuit of the component 7 squeezes the top bending component 11, so that the circuit in the wave groove 10 is in a straight state. When the movable plate 5 is retracted into the cabinet 1, the top bending component 11 pushes the circuit toward the bend of the glass groove 10, so that the circuit in the wave groove 10 is in a wavy shape. When the component 7 is in the cabinet 1, the top bending spring 1102 will bend the circuit through the top block 1101, so that the circuit is in the wave groove 10, and when the movable plate 5 is pushed out, the circuit will squeeze the top bending spring 1102, so that the top bending spring 1102 is squeezed.

[0040] Compared with Example 1, the advantage of this embodiment is that through the setting of the wave groove 10, when the line is not taut, the line can be attached to the wave groove 10 so as to store the excess line, and the line is not excessively bent, thereby improving the service life of the line.

[0041] In Example 3, in the structures of Example 1 and Example 2, since the movable plate 5 moves at the same time, the connector of the component 7 is easily pulled, resulting in poor contact of the circuit of the component 7.

[0042] Based on the above problems, this embodiment Figure 6 As shown, a detachable anti-dropping component 14 is provided on the fixing plate 4 , the anti-dropping component 10 is buckled on the component 7 , and the anti-dropping component 14 is clamped with the circuit of the component 7 .

[0043] The anti-falling component 14 includes a telescopic plate 1401, a telescopic rod 1402 and a buckle component. In this embodiment, the telescopic plate 1401 includes a telescopic sleeve and a plug-in plate. The plug-in plate is slidably inserted in the telescopic sleeve, and a spring buckle is fixedly provided on the plug-in plate. The telescopic sleeve is provided with a plurality of first through holes adapted to the spring buckles. When adjustment is required, the spring buckle is pressed to slide the plug-in plate in the telescopic sleeve. When stuck, the spring buckle can be plugged into the first through hole, so that the positions of the plug-in plate and the telescopic sleeve are locked, and adjustment can be performed. The telescopic plate 1401 is fixed to the fixed plate 4 by bolts, the telescopic rod 1402 is fixed on the telescopic plate 1401, and the buckle component is fixed on the telescopic rod 1402. The anti-falling component 14 is first installed on the fixed plate 4, and then after the adjustment is completed, the component 7 is installed on the fixed plate 4, which can prevent the circuit of the component 7 from falling off. In this embodiment, the spring buckle is a prior art and will not be described again.

[0044] The buckle assembly includes a fixed seat 15 and a flip seat 16; the fixed seat 15 is on the telescopic rod 1402, and the fixed seat 15 is fixed to the fixed plate 4 by bolts. In this embodiment, a plurality of bolt holes are opened on the fixed plate 4. When adjusting, the fixed seat 15 can be adjusted with the bolt holes at different positions so that it can be adjusted according to the size of the component 7. The flip seat 16 is rotatably arranged on the fixed seat 15, and a buckle is fixed on the flip seat 16. A clamping block is fixed on the fixed seat 15. When the flip seat 16 is buckled on the fixed seat 15, the buckle is clamped with the clamping block. In this embodiment, the buckle and the clamping block are prior art and are not described here. The fixed seat 15 and the flip seat 16 are clamped together. After the component 7 is installed, the circuit can be placed between the fixed seat 15 and the flip seat 16, and the buckle is clamped with the clamping block, so that the fixed seat 15 and the flip seat 16 cooperate with each other to clamp the circuit.

[0045] A clamping assembly 17 is provided in the fixed seat 15 and the flip seat 16. The clamping assembly 17 includes a first spring 1701 and an arc plate 1702. The first spring 1701 is fixed on the inner wall of the fixed seat 15 and the flip seat 16 respectively. The other end of the first spring 1701 is fixedly connected to the arc plate 1702, so that the arc plate 1702 is clamped on the circuit of the component 7. When the flip seat 16 is clamped with the fixed seat 15, the arc plates 1702 distributed on the fixed seat 15 and the flip seat 16 can be against the circuit. Under the action of the first spring 1701, the arc plate 1702 can clamp the circuit to prevent the joints of the circuit from being frequently pulled out and causing looseness.

[0046] Compared with Example 1 and Example 2, the advantage of this embodiment is that after the telescopic plate 1401 is installed on the fixed plate 4, the telescopic plate 1401 and the telescopic rod 1402 are adjusted, and after the adjustment is completed, the circuit of the component 7 is placed in the anti-falling component 14, and the clamping component 17 can clamp the circuit of the component 7, which can prevent the circuit from having poor contact when the connector of the component 7 is pulled.

[0047] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. The basic concept of the present invention is that the components 7 are inconvenient to maintain in the cabinet 1, so that the components 7 can be extended out of the cabinet 1, and the components 7 can be extended after extending out of the cabinet 1 to adjust the spacing between the components 7, so that it is convenient to maintain the components 7. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A power box with heat dissipation and convenient maintenance, characterized in that: It comprises a cabinet body (1), a telescopic component (2), an extension component (3) and a fixing plate (4); Each of the fixing plates (4) is provided with a ventilation hole (8), the fixing plates (4) are equipped with components (7) corresponding to the ventilation hole (8), and a fan is provided in the ventilation hole (8); The telescopic component (2) is arranged on the inner bottom wall of the cabinet (1), and a movable plate (5) is connected to the telescopic component (2); The expansion assembly (3) comprises two vertical scissor-type telescopic frames (301) spaced apart from each other, a plurality of horizontal scissor-type telescopic frames (302) spaced apart from each other, and a lifting plate (6); the vertical scissor-type telescopic frames (301) are mounted on the movable plate (5); a vertical shaft seat is provided at the intersection of the vertical scissor-type telescopic frames (301); a vertical connecting seat is provided on the lifting plate (6); the vertical shaft seat is connected to the vertical connecting seat; a first telescopic device (12) extending in the up-down direction is fixedly provided at the lower rear end of the movable plate (5); an end of a movable rod of the first telescopic device (12) is fixedly connected to the uppermost lifting plate (6), so that the vertical scissor-type telescopic frames (301) drive the lifting plate (6) to expand evenly from bottom to top; The lifting plate (6) is provided with a second limit sliding groove which is transparent on the left and right and has an opening facing backwards. A transverse shaft seat is provided at the intersection of the transverse scissor-type telescopic frame (302). The transverse shaft seat is slidably inserted in the second limit sliding groove. The transverse scissor-type telescopic frame (302) is connected to a plurality of fixed plates (4). Two second telescopic devices (13) which are spaced apart and extend left and right are fixedly provided on the lifting plate (6). The movable rod ends of the two second telescopic devices (13) are respectively connected to the left and right sides of the transverse scissor-type telescopic frame (302), so that the transverse scissor-type telescopic frame (302) is driven to expand relative to or opposite to each other along the left and right directions.

2. The heat dissipation and maintenance-friendly power box according to claim 1 is characterized in that: The telescopic assembly (2) comprises a first driving device (201) and a lead screw (202); The first driving device (201) is fixedly mounted on the inner bottom wall of the cabinet (1), and the output end of the first driving device (201) is drivingly connected to the lead screw (202) to cause the lead screw (202) to rotate; The movable plate (5) is sleeved on the lead screw (202) and is threadedly connected to the lead screw (202). A limit groove with an upward opening is provided on the inner bottom wall of the cabinet (1). When the lead screw (202) rotates, the movable plate (5) moves forward and backward along the limit groove.

3. The heat dissipation and maintenance-friendly power box according to claim 2 is characterized in that: The inner wall of the cabinet (1) is provided with a plurality of line dividing grooves (9) spaced apart from each other, and a wave groove (10) is provided at the lower end of each line dividing groove (9). The line dividing grooves (9) are communicated with the wave grooves (10), and a top bending component (11) is provided at the bend of the wave groove (10). When the movable plate (5) is pushed out of the cabinet (1), the circuit of the component (7) presses the top bending component (11), so that the circuit in the wave groove (10) is in a straight line state. When the movable plate (5) is retracted into the cabinet (1), the top bending component (11) pushes the circuit toward the bend of the glass groove (10), so that the circuit in the wave groove (10) is in a wave shape.

4. The heat dissipation and maintenance-friendly power box according to claim 1 is characterized in that: The movable plate (5) is provided with a first limit sliding groove which is arranged vertically and opens toward the rear. When the first telescopic device (12) is telescoped, it can drive the lifting plate (6) to move up and down along the first limit sliding groove.

5. The heat dissipation and maintenance-friendly power box according to claim 1 is characterized in that: When the two second telescopic devices (13) are telescoped, they can drive the fixed plate (4) to move left and right along the second limit sliding groove.

6. The heat dissipation and maintenance-friendly power box according to claim 1 is characterized in that: The fixing plate (4) is provided with a detachable anti-dropping component (14), the anti-dropping component (10) is buckled onto the component (7), and the anti-dropping component (14) is clamped with the circuit of the component (7).

7. The heat dissipation and maintenance-friendly power box according to claim 6 is characterized in that: The anti-falling assembly (14) comprises a telescopic plate (1401), a telescopic rod (1402) and a buckle assembly; The telescopic plate (1401) is fixed to the fixed plate (4) by means of bolts, the telescopic rod (1402) is fixed to the telescopic plate (1401), and the buckle assembly is fixed to the telescopic rod (1402).

8. The power box for heat dissipation and easy maintenance according to claim 7 is characterized in that: The buckle assembly comprises a fixing seat (15) and a flip seat (16); the fixing seat (15) is on the telescopic rod (1402), and the fixing seat (15) is fixed on the fixing plate (4) by means of bolts; The flip seat (16) is rotatably mounted on the fixed seat (15); a buckle is fixedly mounted on the flip seat (16); a clamping block is fixedly mounted on the fixed seat (15); when the flip seat (16) is buckled on the fixed seat (15), the buckle is clamped with the clamping block, so that the fixed seat (15) and the flip seat (16) are clamped together.

9. The heat dissipation and maintenance-friendly power box according to claim 8 is characterized in that: A clamping assembly (17) is provided in both the fixed seat (15) and the flip seat (16), and the clamping assembly (17) comprises a first spring (1701) and an arc-shaped plate (1702), wherein the first spring (1701) is fixedly provided on the inner side walls of the fixed seat (15) and the flip seat (16), respectively, and the other end of the first spring (1701) is fixedly connected to the arc-shaped plate (1702), so that the arc-shaped plate (1702) is clamped on the circuit of the component (7).

10. The power box with good heat dissipation and convenient maintenance according to claim 1, characterized in that: The outer side of the cabinet (1) is provided with a flip door (18) that can be rotated.

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