CN115000836A - Power distribution cabinet with heat dissipation function and working method - Google Patents

Abstract

The invention relates to the technical field of electrical equipment, and discloses a power distribution cabinet with a heat dissipation function. This switch board with heat dissipation function, when the inside high temperature of switch board main part, the fan that admits air inhales the outside air of base by the inlet port, filter the inside of back entering switch board main part by the dust screen, cool down the inside of switch board main part, then discharge via exhaust fan and exhaust hole, pulling cabinet door is opened to both sides, when the cabinet door is opened completely, the instrument mounting bracket is released completely, make the inside components and parts of switch board main part remove the outside, make things convenient for maintenance personal installation and overhaul, when closing the cabinet door, the instrument mounting bracket is drawn into the inside of switch board main part, when the cabinet door is closed, the instrument mounting bracket is located the inside of switch board main part.

Description

A power distribution cabinet with heat dissipation function and its working method

technical field

The invention relates to the technical field of electrical equipment, in particular to a power distribution cabinet with a heat dissipation function.

Background technique

Power distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets. They are the final equipment of the power distribution system. Power distribution cabinets are the general name for motor control centers. Power distribution cabinets are used in places with relatively scattered loads and fewer circuits. Occasionally, the motor control center is used for the occasions where the load is concentrated and there are many circuits. They distribute the electric energy of a certain circuit of the upper-level power distribution equipment to the nearby load. This level of equipment should provide protection, monitoring and control for the load. It is made of non-combustible materials, and the production sites and offices with low risk of electric shock can be installed with open switchboards. In such places, closed cabinets should be installed. In dangerous workplaces with conductive dust or flammable and explosive gases, closed or explosion-proof electrical facilities must be installed.

At present, more and more power distribution cabinets are used, and they have become very common equipment. Since many power distribution cabinets are installed in small and closed spaces, the power distribution cabinets with poor heat dissipation are very prone to occur. Fire and power accidents, and generally the power distribution cabinet is only set with a cabinet door on the front of the cabinet. During maintenance, the components inside the power distribution cabinet are installed on the bracket near the back, and workers need to go deep into the power distribution cabinet for maintenance. , not only is not conducive to maintenance, but also very dangerous.

To this end, we propose a power distribution cabinet with heat dissipation function.

SUMMARY OF THE INVENTION

In order to make up for the deficiencies of the prior art, the present invention provides the following technical solutions: a power distribution cabinet with a heat dissipation function, comprising a power distribution cabinet body, a base is provided on the bottom of the power distribution cabinet body, and the power distribution cabinet is The inside of the main body is provided with a moving mechanism, and the main body of the power distribution cabinet is provided with a heat dissipation mechanism.

The heat dissipation mechanism includes an air intake fan, an air intake hole, a dustproof net, a top plate, a vent, a drive motor, a rotating shaft, an exhaust fan, a moving block, a lifting rail, a lifting cap and an exhaust hole. It is fixedly installed between the main body of the power distribution cabinet and the base. The air inlet holes are opened on both sides of the base. The top is fixedly connected, the vent is opened in the middle of the top plate, the two ends of the rotating shaft are respectively rotatably connected to the front and rear sides of the vent, the drive motor is fixedly installed on the front side of the top plate, and the output end of the drive motor It is fixedly installed with one end of the rotating shaft, the bottom of the exhaust fan is penetrated by the rotating shaft, the bottom of the exhaust fan is fixedly installed with the rotating shaft, and the bottom of the moving block is rotatably connected with the top of the exhaust fan. The top is slidably connected with the lifting slide rail, the lifting slide rail is connected with the top inside the lift cap, the lift cap is sleeved on the outer side of the top of the main body of the power distribution cabinet, and the exhaust holes are opened on both sides of the lift cap.

Preferably, the moving mechanism includes a transverse sliding rail, a longitudinal sliding rail, a horizontal sliding block, a fixed rod, a moving rod, a rotating rod, a connecting rod, a vertical sliding block, a vertical sliding groove, a rotating seat and an instrument mounting frame, and the The lateral slide rails are fixedly installed on the top and bottom of the front side of the main body of the power distribution cabinet, the longitudinal slide rails are fixedly connected to both ends of the lateral slide rails, the horizontal slide rails are slidingly connected to the lateral slide rails, and one end of the fixing rod It is rotatably connected with the bottom of the horizontal slider, the other end of the fixed rod is rotatably connected with the moving rod, the front side of the fixed rod is fixedly connected with the cabinet door, and the two ends of the moving rod are connected to the longitudinal direction through the integrated horizontal slider. The slide rail is slidably connected, one end of the rotating rod is rotatably connected with the moving rod, the other end of the rotating rod is rotatably connected with the rotating base, the rotating base is integrally connected with the back of the instrument mounting frame, and the connecting rod is connected with the rotating rod The middle part of one side is integrally connected, the front end of the vertical slider is rotatably connected to the connecting rod, the rear end of the vertical slider is slidably connected to the vertical chute, and the vertical chute is fixed to the back inside the main body of the power distribution cabinet connect.

Preferably, the number of the rotating shafts is two, the two rotating shafts are symmetrically arranged on both sides of the ventilation opening, one end of the rotating shaft is fixedly installed with the output end of the driving motor, and the rotation angle of the rotating shaft is Ninety degrees.

Preferably, the lift rails are two parallel rails, the height of the lift cap is greater than the height of the exhaust fan, and the height of the exhaust fan is less than half the length of the vent.

Preferably, one end of the longitudinal slide rail is fixedly connected to the two ends of the rear side of the lateral slide rail, the longitudinal slide rail and the lateral slide rail are perpendicular to each other, and one side of the longitudinal slide rail is fixed to the inner wall of the main body of the power distribution cabinet Installation, the two longitudinal slide rails are parallel to each other.

Preferably, the rotating rods are provided in two groups, one group contains two rotating rods, the rotating rods are in a right-angle "L" shape, and the right angles of the rotating rods in the same group are integrally connected by connecting rods , the length of the side where the rotating rod is rotatably connected with the rotating seat is greater than the distance between the upper rotating seat and the top of the instrument mounting frame.

Preferably, two parallel vertical chutes are provided, the top of the vertical chutes is fixedly connected to the top of the main body of the power distribution cabinet, and the bottom of the vertical chutes is fixedly connected to the bottom of the main body of the power distribution cabinet.

Preferably, the lateral slide rails and two longitudinal slide rails form a set, one set of the lateral slide rails and the longitudinal slide rails are arranged on the top of the main body of the power distribution cabinet, and the other set of the lateral slide rails and the longitudinal slide rails It is arranged at the bottom of the main body of the power distribution cabinet, and the two sets of transverse sliding rails are parallel to the longitudinal sliding rails.

Preferably, the rotating bases are arranged in two rows and two columns, the rotating bases in each row are symmetrical with each other with the horizontal center line of the instrument mounting frame as the symmetry axis, and the rotating bases in each row are mutually symmetrical with the vertical center line of the instrument mounting frame as the symmetry axis symmetry.

Preferably, the distance between the uppermost row of the rotating seat and the top of the instrument mounting frame is less than half of the height of the instrument mounting frame.

beneficial effect

Compared with the prior art, the present invention provides a power distribution cabinet with a heat dissipation function, which has the following beneficial effects:

1. In this power distribution cabinet with heat dissipation function, an intake fan is arranged between the base and the main body of the power distribution cabinet, and the exhaust fan on the top of the main body of the power distribution cabinet is usually folded. When the internal temperature is too high, the drive motor starts to drive the shaft and the exhaust fan to rotate and rise. With the rise of the exhaust fan, the lifting cap is lifted up, exposing the exhaust hole, and the moving block moves in the middle of the lifting rail. , and the exhaust fan on the other side of the vent is also raised by the lifting rail, and the air outside the base is inhaled through the air inlet through the air intake fan, filtered by the dust filter, and then enters the main body of the power distribution cabinet. Inside, the inside of the power distribution cabinet body is cooled, and then exhausted through the exhaust fan and the exhaust hole.

2. This power distribution cabinet with heat dissipation function is provided with a foldable exhaust fan. When the temperature inside the main body of the power distribution cabinet is not high, the exhaust fan is stowed in the vent, the lifting cap is at the lowest end, and the exhaust fan is at the lowest end. The port is blocked by the main body of the power distribution cabinet, so that the external dust will not enter the inside of the main body of the power distribution cabinet through the exhaust hole, and the dust-proof net set on the inside of the air inlet hole can filter the air inhaled by the air intake fan, greatly reducing the air intake. It reduces the dust content inside the main body of the power distribution cabinet.

3. In this power distribution cabinet with heat dissipation function, the fixed rod is moved by pulling the cabinet door, so that the horizontal sliders connected by rotation at both ends of the fixed rod slide in the horizontal slide rail and the longitudinal slide rail respectively, so that the cabinet door is moved towards the horizontal slide rail. The two sides are opened. During the process of opening the cabinet door, as one end of the fixed rod moves backward, the moving rod connected to the fixed rod also moves backward, and the rotating rod connected with the moving rod will rotate around the moving rod, making the connection The vertical slider connected by rotation on the rod slides along the vertical chute, and the other end of the rotating rod pushes the instrument mounting bracket to move to the outside of the main body of the power distribution cabinet. When the cabinet door is fully opened, the instrument mounting bracket is completely pushed out, making the The components inside the main body of the power distribution cabinet are moved to the outside, which is convenient for maintenance personnel to install and repair. When the cabinet door is closed, the fixed rod pulls the moving rod to move forward, and the moving rod pulls one end of the rotating rod to move, and the connecting rod moves with the movement of the rotating rod. The vertical slider connected by the upper rotation slides in the opposite direction of the vertical chute, and the other end of the rotating rod pulls the instrument mounting bracket into the interior of the main body of the power distribution cabinet. When the cabinet door is closed, the instrument mounting bracket is located in the main body of the power distribution cabinet. internal.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

2 is a schematic structural diagram of a heat dissipation mechanism of the present invention;

Fig. 3 is the enlarged view of A place in Fig. 2 of the present invention;

Fig. 4 is the partial structure schematic diagram of Fig. 2 of the present invention;

Fig. 5 is the structural representation of the base of the present invention;

6 is a schematic structural diagram of a moving mechanism of the present invention;

Fig. 7 is the partial structure schematic diagram of the moving mechanism of the present invention;

8 is a schematic structural diagram of another angle of the moving mechanism of the present invention;

FIG. 9 is a partial structural schematic diagram of the moving mechanism of the present invention.

In the figure: 1. Main body of power distribution cabinet; 2. Base; 3. Heat dissipation mechanism; 301, Air intake fan; 302, Air intake hole; 303, Dust filter; 304, Top plate; Motor; 307, rotating shaft; 308, exhaust fan; 309, moving block; 310, lifting rail; 311, lifting cap; 312, exhaust hole; 4, moving mechanism; 401, horizontal rail; 402, longitudinal rail ;403, horizontal slider; 404, fixed rod; 405, moving rod; 406, rotating rod; 407, connecting rod; 408, vertical slider; 409, vertical chute; 410, rotating seat; 411, instrument mounting bracket 5. Cabinet door.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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, but not all of 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 shall fall within the protection scope of the present invention.

1-9, a power distribution cabinet with heat dissipation function includes a power distribution cabinet main body 1, a base 2 is disposed on the bottom of the power distribution cabinet main body 1, and a moving mechanism 4 is disposed inside the power distribution cabinet main body 1 , the main body 1 of the power distribution cabinet is provided with a heat dissipation mechanism 3 .

The heat dissipation mechanism 3 includes an air intake fan 301 , an air intake hole 302 , a dustproof net 303 , a top plate 304 , a ventilation port 305 , a driving motor 306 , a rotating shaft 307 , an exhaust fan 308 , a moving block 309 , a lifting rail 310 , and a lifting cap 311 With the exhaust hole 312 , the air intake fan 301 is fixedly installed between the main body 1 of the power distribution cabinet and the base 2 , the air intake holes 302 are opened on both sides of the base 2 , and the dustproof net 303 is fixedly installed inside the base 2 . On both sides, the top plate 304 is fixedly connected with the top of the main body 1 of the power distribution cabinet, the vent 305 is opened in the middle of the top plate 304, the two ends of the rotating shaft 307 are respectively connected with the front and rear sides of the vent 305, and the driving motor 306 is connected to the top plate 304. The front side is fixedly installed, the output end of the drive motor 306 is fixedly installed with one end of the rotating shaft 307, the bottom of the exhaust fan 308 is penetrated by the rotating shaft 307, the bottom of the exhaust fan 308 is fixedly installed with the rotating shaft 307, and the bottom of the moving block 309 is connected to the exhaust The top of the fan 308 is rotatably connected, the top of the moving block 309 is slidably connected with the lifting rail 310, and the lifting rail 310 is connected with the top inside the lifting cap 311. The holes 312 are opened on both sides of the lift cap 311. By arranging the intake fan 301 between the base 2 and the main body of the power distribution cabinet 1, the drive motor 306 drives the rotating shaft 307 and the exhaust fan 308 to rotate and rise. When 308 rises, the lifting cap 311 is lifted up, exposing the exhaust hole 312 , and the exhaust fan 308 on the other side of the vent 305 is also lifted up by the lifting rail 310 , and the base 2 is lifted by the intake fan 301 . The outside air is inhaled by the air intake hole 302, filtered by the dustproof net 303 and then enters the inside of the power distribution cabinet body 1 to cool the inside of the power distribution cabinet body 1, and then is discharged through the exhaust fan 308 and the exhaust hole 312, When the temperature inside the power distribution cabinet body 1 is not high, the exhaust fan 308 is stowed in the vent 305, the lifting cap 311 is at the lowest end, and the exhaust hole 312 is blocked by the power distribution cabinet body 1, so that the external dust does not escape. It will enter the interior of the main body 1 of the power distribution cabinet through the exhaust hole 312, and the dustproof net 303 arranged inside the air intake hole 302 can filter the air inhaled by the air intake fan 301, which greatly reduces the amount of air inside the main body 1 of the power distribution cabinet 1. dust content.

As an embodiment of the present invention, the moving mechanism 4 includes a transverse sliding rail 401, a longitudinal sliding rail 402, a horizontal sliding block 403, a fixed rod 404, a moving rod 405, a rotating rod 406, a connecting rod 407, a vertical sliding block 408, The vertical chute 409, the rotating seat 410 and the instrument mounting bracket 411, the lateral slide rails 401 are fixedly installed on the top and bottom of the front side of the power distribution cabinet main body 1, the longitudinal slide rails 402 are fixedly connected to both ends of the lateral slide rails 401, and the horizontal slide rails 402 are fixedly connected to the two ends of the horizontal slide rails 401. The block 403 is slidably connected with the lateral slide rail 401, one end of the fixed rod 404 is rotatably connected with the bottom of the horizontal slider 403, the other end of the fixed rod 404 is rotatably connected with the moving rod 405, and the front side of the fixed rod 404 is fixedly connected with the cabinet door 5 , the two ends of the moving rod 405 are slidably connected to the longitudinal slide rail 402 through the horizontal slider 403 that is integrally connected; It is integrally connected with the back of the instrument mounting frame 411 , the connecting rod 407 is integrally connected with the middle part of one side of the rotating rod 406 , the front end of the vertical slider 408 is rotatably connected with the connecting rod 407 , and the rear end of the vertical slider 408 is connected with the vertical chute 409 For sliding connection, the vertical chute 409 is fixedly connected to the back of the main body 1 of the power distribution cabinet. By pulling the cabinet door 5, the fixing rod 404 is moved, so that the horizontal sliders 403 connected at both ends of the fixing rod 404 are rotated on the horizontal slide rails 401 respectively. Sliding in the longitudinal slide rail 402, in the process of opening the cabinet door 5, the moving rod 405 moves backward, and the rotating rod 406 connected by the rotating rod 405 will rotate around the moving rod 405, so that the vertical connecting rod 407 is rotated and connected. The straight slider 408 slides along the vertical chute 409, and the other end of the rotating rod 406 pushes the instrument mounting bracket 411 to move to the outside of the main body 1 of the power distribution cabinet. When the cabinet door 5 is fully opened, the instrument mounting bracket 411 is completely pushed out. When the cabinet door 5 is closed, the fixed rod 404 pulls the moving rod 405 to move forward, and the moving rod 405 pulls one end of the rotating rod 406 to move. The vertical chute 409 slides in the opposite direction, and the other end of the rotating rod 406 pulls the instrument mounting bracket 411 into the interior of the main body 1 of the power distribution cabinet.

As an embodiment of the present invention, the number of rotating shafts 307 is two, and the two rotating shafts 307 are symmetrically arranged on both sides of the ventilation port 305 , one end of one rotating shaft 307 is fixedly installed with the output end of the driving motor 306 , and the rotating shaft 307 The rotation angle is ninety degrees.

As an embodiment of the present invention, the lift rails 310 are two parallel rails, the height of the lift cap 311 is greater than the height of the exhaust fan 308 , and the height of the exhaust fan 308 is less than half the length of the vent 305 .

As an embodiment of the present invention, one end of the longitudinal slide rail 402 is fixedly connected to the two ends of the rear side of the lateral slide rail 401, the longitudinal slide rail 402 and the lateral slide rail 401 are perpendicular to each other, and one side of the longitudinal slide rail 402 is connected to the power distribution The inner wall of the cabinet body 1 is fixedly installed, and the two longitudinal slide rails 402 are parallel to each other.

As an embodiment of the present invention, there are two groups of rotating rods 406, one group contains two rotating rods 406, the rotating rods 406 are in a right-angle "L" shape, and the right angles of the rotating rods 406 in the same group are connected by connecting rods 407 are integrally connected, and the length of the side where the rotating rod 406 is rotatably connected with the rotating base 410 is greater than the distance between the upper rotating base 410 and the top of the instrument mounting bracket 411 .

As an embodiment of the present invention, two vertical chutes 409 are provided in parallel, the top of the vertical chutes 409 is fixedly connected to the top of the power distribution cabinet body 1 , and the bottom of the vertical Bottom fixed connection.

As an embodiment of the present invention, the transverse slide rails 401 and two longitudinal slide rails 402 are a group, one set of transverse slide rails 401 and longitudinal slide rails 402 are arranged on the top of the main body 1 of the power distribution cabinet, and the other set of transverse slide rails 402 The rails 401 and the longitudinal sliding rails 402 are arranged at the bottom of the main body 1 of the power distribution cabinet, and the two sets of transverse sliding rails 401 are parallel to the longitudinal sliding rails 402 .

As an embodiment of the present invention, the rotating bases 410 are provided with two rows and two columns, each row of rotating bases 410 is symmetrical to each other with the horizontal center line of the instrument mounting frame 411 as the symmetry axis, and each row of rotating bases 410 is symmetric with respect to the vertical axis of the instrument mounting frame 411 . The midline is the axis of symmetry to be symmetrical to each other.

As an embodiment of the present invention, the distance between the uppermost row of the rotating seat 410 and the top of the instrument mounting bracket 411 is less than half of the height of the instrument mounting bracket 411 .

Working principle: When in use, when the temperature inside the power distribution cabinet body 1 is not high, the exhaust fan 308 on the top of the power distribution cabinet body 1 is usually stowed, the exhaust fan 308 is stowed in the vent 305, and the lifting cap 311 is at the lowest end, and the exhaust hole 312 is blocked by the main body of the power distribution cabinet 1, so that external dust will not enter the interior of the main body of the power distribution cabinet 1 through the exhaust hole 312. When the temperature inside the main body of the power distribution cabinet 1 is too high , the drive motor 306 starts, and drives the shaft 307 and the exhaust fan 308 to rotate and rise. With the rise of the exhaust fan 308, the lifting cap 311 is lifted up, exposing the exhaust hole 312, and the moving block 309 is on the lifting rail 310 at the same time. The middle part moves, and the exhaust fan 308 on the other side of the vent 305 is also lifted up by the lifting rail 310. 301 inhales the air outside the base 2 through the air intake hole 302, and the dust filter 303 arranged inside the air intake hole 302 can filter the air inhaled by the air intake fan 301, which greatly reduces the interior of the main body 1 of the power distribution cabinet. The air filtered by the dust filter 303 enters the interior of the power distribution cabinet body 1, cools the interior of the power distribution cabinet body 1, and then is discharged through the exhaust fan 308 and the exhaust hole 312. When the power distribution cabinet needs to be installed and repaired, the fixed rod 404 is moved by pulling the cabinet door 5, and the horizontal sliders 403 connected by rotation at both ends of the fixed rod 404 slide in the lateral slide rail 401 and the longitudinal slide rail 402 respectively, so that the cabinet door 5 Open to both sides, in the process of opening the cabinet door 5, as one end of the fixed rod 404 moves backward, the moving rod 405 connected to the fixed rod 404 also moves backward, and the rotating rod 406 connected to the moving rod 405 will move backward. Rotate around the moving rod 405, so that the vertical slider 408 rotatably connected on the connecting rod 407 slides along the vertical chute 409, and the other end of the rotating rod 406 pushes the instrument mounting bracket 411 to move to the outside of the main body 1 of the power distribution cabinet. When the cabinet door 5 is fully opened, the instrument mounting bracket 411 is completely pushed out, so that the components inside the main body 1 of the power distribution cabinet are moved to the outside, which is convenient for maintenance personnel to install and repair. When the cabinet door 5 is closed, the fixed rod 404 pulls the moving rod 405 to the front. To move, the moving rod 405 pulls one end of the rotating rod 406 to move. With the movement of the rotating rod 406, the vertical sliding block 408 connected to the connecting rod 407 slides in the opposite direction of the vertical chute 409, and the other end of the rotating rod 406 will The meter mounting bracket 411 is pulled into the interior of the power distribution cabinet body 1 , and when the cabinet door 5 is closed, the meter mounting bracket 411 is located inside the power distribution cabinet body 1 .

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A power distribution cabinet with a heat dissipation function, comprising a power distribution cabinet main body (1), characterized in that: a base (2) is provided on the bottom of the power distribution cabinet main body (1), and the power distribution cabinet is provided with a base (2). The inside of the main body (1) is provided with a moving mechanism (4), and the power distribution cabinet main body (1) is provided with a heat dissipation mechanism (3). 2. The cooling mechanism (3) includes an air intake fan (301), an air intake hole (302), a dust filter (303), a top plate (304), an air vent (305), a drive motor (306), a rotating shaft ( 307), exhaust fan (308), moving block (309), lifting rail (310), lifting cap (311) and exhaust hole (312), the intake fan (301) is fixedly installed in the power distribution cabinet Between the main body (1) and the base (2), the air inlet holes (302) are opened on both sides of the base (2), and the dust-proof net (303) is fixedly installed on the inside of the base (2). On both sides, the top plate (304) is fixedly connected to the top of the main body (1) of the power distribution cabinet, the ventilation opening (305) is opened in the middle of the top plate (304), and the two ends of the rotating shaft (307) are respectively connected to the ventilation The front and rear sides of the mouth (305) are rotatably connected, the drive motor (306) is fixedly installed with the front side of the top plate (304), and the output end of the drive motor (306) is fixedly installed with one end of the rotating shaft (307), so The bottom of the exhaust fan (308) is penetrated by the rotating shaft (307), the bottom of the exhaust fan (308) is fixedly installed with the rotating shaft (307), and the bottom of the moving block (309) is connected to the exhaust fan (308) The top of the moving block (309) is slidably connected with the lift rail (310), the lift rail (310) is connected with the top inside the lift cap (311), and the lift cap (311) It is sleeved on the outer side of the top of the power distribution cabinet body (1), and the exhaust holes (312) are opened on both sides of the lifting cap (311). 3 . The power distribution cabinet with heat dissipation function according to claim 1 , wherein the moving mechanism ( 4 ) comprises a lateral slide rail ( 401 ), a longitudinal slide rail ( 402 ), and a horizontal slide rail ( 403 ). 4 . ), fixed rod (404), moving rod (405), rotating rod (406), connecting rod (407), vertical slider (408), vertical chute (409), rotating seat (410) and instrument mounting bracket (411), the lateral slide rails (401) are fixedly installed on the top and bottom of the front side of the power distribution cabinet body (1), and the longitudinal slide rails (402) are fixedly connected to both ends of the lateral slide rails (401), The horizontal sliding block (403) is slidably connected with the lateral slide rail (401), one end of the fixing rod (404) is rotatably connected with the bottom of the horizontal sliding block (403), and the other end of the fixing rod (404) is connected to the bottom of the horizontal sliding block (403). The moving rod (405) is rotatably connected, the front side of the fixed rod (404) is fixedly connected with the cabinet door (5), and the two ends of the moving rod (405) are connected with the longitudinal slide rail through an integrally connected horizontal slider (403). (402) Sliding connection, one end of the rotating rod (406) is rotatably connected with the moving rod (405), and the other end of the rotating rod (406) is rotatably connected with the rotating seat (410), the rotating seat (410) It is integrally connected with the back of the instrument mounting bracket (411), the connecting rod (407) is integrally connected with the middle part of one side of the rotating rod (406), and the front end of the vertical slider (408) is rotatably connected with the connecting rod (407). , the rear end of the vertical slider (408) is slidably connected with the vertical chute (409), the vertical chute (409) is fixedly connected with the back inside the power distribution cabinet body (1), the vertical chute (409) (409) are provided with two parallel pieces, the top of the vertical chute (409) is fixedly connected to the top of the power distribution cabinet body (1), and the bottom of the vertical chute (409) is connected to the power distribution cabinet body (1). ) at the bottom of the fixed connection. The power distribution cabinet with heat dissipation function according to claim 2, characterized in that: the number of the rotating shafts (307) is two, and the two rotating shafts (307) are symmetrically arranged at the ventilation openings (305). ), one end of one of the rotating shafts (307) is fixedly installed with the output end of the driving motor (306), and the rotation angle of the rotating shaft (307) is ninety degrees. The power distribution cabinet with heat dissipation function according to claim 2, characterized in that: the lifting slide rails (310) are two slide rails that are parallel to each other, and the height of the lift cap (311) is greater than The height of the exhaust fan (308), the height of the exhaust fan (308) being less than half the length of the vent (305). 6. A power distribution cabinet with heat dissipation function according to claim 3, characterized in that: one end of the longitudinal slide rail (402) is fixedly connected to both ends of the rear side of the lateral slide rail (401), and the The longitudinal slide rail (402) and the transverse slide rail (401) are perpendicular to each other, one side of the longitudinal slide rail (402) is fixedly installed with the inner wall of the main body (1) of the power distribution cabinet, and the two longitudinal slide rails (402) parallel to each other. 7. A power distribution cabinet with heat dissipation function according to claim 3, characterized in that: the rotating rods (406) are provided with two groups, and one group contains two rotating rods (406), The rotating rod (406) is in the shape of a right angle "L", and the right angle of the rotating rod (406) in the same group is integrally connected by a connecting rod (407), and the rotating rod (406) rotates with the rotating seat (410) The length of the connected side is greater than the distance between the upper rotating seat (410) and the top of the instrument mounting bracket (411). 8. A power distribution cabinet with heat dissipation function according to claim 3, characterized in that: the lateral slide rails (401) and two longitudinal slide rails (402) are a group, and a set of the lateral slide rails (402) is a group. The rail (401) and the longitudinal slide rail (402) are arranged on the top of the power distribution cabinet body (1), and another set of the lateral slide rails (401) and the longitudinal slide rails (402) are arranged on the power distribution cabinet body (1) At the bottom, the two sets of transverse slide rails (401) are parallel to the longitudinal slide rails (402). 9 . The power distribution cabinet with heat dissipation function according to claim 7 , wherein the rotating base ( 410 ) is provided with two rows and two columns, and each row of the rotating base ( 410 ) is provided with an instrument mounting frame. 10 . The horizontal centerline of (411) is symmetrical with each other, and the rotating seats (410) in each row are symmetrical with each other with the vertical centerline of the instrument mounting frame (411) as the symmetry axis. The distance from the top of the meter mount (411) is less than half the height of the meter mount (411). 10. A working method of a power distribution cabinet with heat dissipation function according to any one of claims 1-9, characterized in that: when the temperature inside the power distribution cabinet main body (1) is not high, the The exhaust fan (308) at the top of the electrical cabinet body (1) is usually stowed, the exhaust fan (308) is stowed in the vent (305), the lift cap (311) is at the lowest end, and the exhaust hole (312) ) is blocked by the power distribution cabinet body (1), so that the external dust will not enter the inside of the power distribution cabinet body (1) through the exhaust hole (312). When the temperature inside the power distribution cabinet body (1) is too high , the driving motor (306) starts, and drives the rotating shaft (307) and the exhaust fan (308) to rotate and rise. As the exhaust fan (308) rises, the lifting cap (311) is lifted up, exposing the exhaust hole ( 312), at the same time the moving block (309) moves in the middle of the lifting rail (310), and the exhaust fan (308) on the other side of the vent (305) is also raised under the driving of the lifting rail (310). An air intake fan (301) is arranged between the base (2) and the main body (1) of the power distribution cabinet, and the air outside the base (2) is sucked in through the air intake hole (302) through the air intake fan (301), and The dust filter (303) arranged on the inner side of the air intake hole (302) can filter the air sucked by the air intake fan (301), greatly reducing the dust content inside the main body (1) of the power distribution cabinet. (303) The filtered air enters the inside of the main body of the power distribution cabinet (1), cools the inside of the main body of the power distribution cabinet (1), and then is discharged through the exhaust fan (308) and the exhaust hole (312) to distribute power When the cabinet needs to be installed and repaired, the fixing rod (404) is moved by pulling the cabinet door (5). (402), so that the cabinet door (5) is opened to both sides. During the process of opening the cabinet door (5), as one end of the fixed rod (404) moves backward, the movement of the rotating connection with the fixed rod (404) The rod (405) also moves backward, and the rotating rod (406) connected to the moving rod (405) will rotate around the moving rod (405), so that the vertical slider (408), which is rotated and connected on the connecting rod (407), will rotate in the same direction. Sliding along the vertical chute (409), and the other end of the rotating rod (406) pushes the instrument mounting bracket (411) to move to the outside of the main body (1) of the power distribution cabinet, when the cabinet door (5) is fully opened, the instrument mounting bracket (411) is completely pushed out, so that the components inside the main body (1) of the power distribution cabinet are moved to the outside, which is convenient for maintenance personnel to install and inspect. When the cabinet door (5) is closed, the fixed rod (404) pulls the moving rod (405) to the front. To move, the moving rod (405) pulls one end of the rotating rod (406) to move, and with the movement of the rotating rod (406), the vertical slider (408) connected to the connecting rod (407) rotates along the vertical chute (409). ) in the opposite direction and turn the other end of the lever (406) to install the meter The frame (411) is pulled into the interior of the power distribution cabinet body (1), and when the cabinet door (5) is closed, the instrument mounting frame (411) is located inside the power distribution cabinet body (1).

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