阅读说明：本技术 一种动力配电箱 (Power distribution box ) 是由 俞小平 杨焕樑 于 2019-09-09 设计创作，主要内容包括：本发明公开了一种动力配电箱,包括箱壳和箱门,所述箱门一端通过合页与箱壳一端转动连接,所述箱壳内设置有元器件安装板和散热灭火装置4,且元器件安装板内侧通过连接柱与箱壳内壁固定,所述散热灭火装置4位于元器件安装板内侧,本发明通过将配电箱用元器件安装至元器件安装板上,当配电箱内温度过高时,通过冷风散热组件,有效的排出冷气,从而实现高效降温,在稳定过高引起火灾时,此时利用散热灭火装置可以有效的将元器件安装板上的火灾扑灭,减少元器件受损。(The invention discloses a power distribution box, which comprises a box shell and a box door, wherein one end of the box door is rotatably connected with one end of the box shell through a hinge, a component mounting plate and a heat dissipation fire extinguishing device 4 are arranged in the box shell, the inner side of the component mounting plate is fixed with the inner wall of the box shell through a connecting column, and the heat dissipation fire extinguishing device 4 is positioned at the inner side of the component mounting plate.)

1. The utility model provides a power distribution box, includes case shell (1) and chamber door (2), chamber door (2) one end is passed through the hinge and is connected its characterized in that with case shell (1) one end rotation: be provided with components and parts mounting panel (3) and heat dissipation extinguishing device (4) in case shell (1), and components and parts mounting panel (3) inboard is fixed through spliced pole and case shell (1) inner wall, heat dissipation extinguishing device (4) are located components and parts mounting panel (3) inboard.

2. a power distribution box according to claim 1, wherein: heat dissipation extinguishing device (4) include cold wind radiator unit (5), remove frame (6), contact frame (7), sealed frame (8) and elasticity driving piece (9), remove frame (6) cover in components and parts mounting panel (3) outside, and outer wall and case shell (1) inner wall sliding connection, contact frame (7) are fixed in removing frame (6) outside, and sealed frame (8) are fixed in chamber door (2) inboard, elasticity driving piece (9) installation is fixed on case shell (1) inner wall, and is connected with removal frame (6), cold wind radiator unit (5) are located case shell (1) to it is fixed with removal frame (6) inboard both ends.

3. A power distribution box according to claim 2, wherein: the elastic driving piece (9) is provided with two elastic driving pieces which are distributed on the inner wall of the box shell (1) at equal intervals, each elastic driving piece (9) comprises a supporting shaft (10), two track shafts (11), two strutting sleeves (12), a fixing plate (13), two strutting springs (14) and a limiting piece (15), the two ends of each supporting shaft (10) are fixed to the inner walls of the two sides of the box shell (1), the fixing plate (13) is fixed to the outer side of the supporting shaft (10), the two track shafts (11) are provided, one ends of the two track shafts (11) are respectively fixed to the two ends of the supporting shaft (10), one ends of the two track shafts (11) are in sliding connection with the movable frame (6), the pushing blocks (16) are sleeved on the outer sides in a sliding mode, the two strutting sleeves (12) and the two strutting springs (14) are respectively provided, the strutting sleeves (12) and the strutting springs (14) are sleeved on the outer side of the supporting shaft (10) in a sliding mode, the two, and two are strutted and are all equipped with connecting rod (17) in the cover (12) outside, connecting rod (17) both ends all rotate with strutted cover (12) and promotion piece (16) through the round pin axle respectively and are connected, locating part (15) are fixed on case shell (1) inner wall, and strut with two and overlap (12) and be connected.

4. A power distribution box according to claim 3, wherein: locating part (15) are including telescopic cylinder (18), backup pad (19) and bolt (20), telescopic cylinder (18) pedestal mounting is fixed on case shell (1) inner wall, and the top is fixed with backup pad (19), bolt (20) are equipped with two, and two bolts (20) are fixed respectively at backup pad (19) surface both ends to peg graft with two cover (12) that strut.

5. A power distribution box according to claim 2, wherein: the cold air radiating assembly (5) comprises two water tanks (21), two connecting plates (22), two adjusting shafts (23), two air exhaust pieces (24) and baffles (25), the two connecting plates (22) are respectively fixed with the two ends of the inner side of the movable frame (6), sliding grooves (26) are formed in the inner sides of the two connecting plates (22), connecting shafts (27) are arranged in the sliding grooves (26), the outer walls of the water tanks (21) are fixed with the two connecting shafts (27), arc-shaped grooves (28) are formed in the outer walls of the water tanks (21), the two adjusting shafts (23) are respectively fixed on the inner sides of the two connecting plates (22) and are in sliding connection with the inner sides of the arc-shaped grooves (28), the two ends of each baffle (25) are fixed with the inner walls on the two sides of the box shell (1), the baffles (25) are located on the outer side of the bottom of the water tanks (21), the air exhaust pieces (24) are installed and fixed on one side, close to the movable frame, and a water inlet (29) is arranged at the top of the water tank (21), the water inlet (29) is communicated with a soft water pipe (30), one end of the soft water pipe (30) is connected with external water supply equipment, and the other end of the soft water pipe extends into the bottom of the water tank (21).

6. The power distribution box of claim 5, wherein: it is equipped with a plurality ofly to air exhaust piece (24), and a plurality ofly air exhaust piece (24) equidistance distribution fixes in the water tank (21) outside, air exhaust piece (24) including L venturi tube (31) and shower head (32), L venturi tube (31) one end and water tank (21) intercommunication, and the other end is fixed with shower head (32), be provided with the draught fan in shower head (32).

7. A power distribution box according to claim 2, wherein: the contact frame (7) and the sealing frame (8) are both made of organic fiber rubber plates.

8. a power distribution box according to claim 2, wherein: and a 2MM gap is arranged between the inner wall of the movable frame (6) and the outer side of the component mounting plate (3).

9. A power distribution box according to claim 2, wherein: the outer side of the track shaft (11) is sleeved with a telescopic spring (33), and two ends of the telescopic spring (33) are respectively fixed with the support shaft (10) and the pushing block (16).

Technical Field

The invention relates to the technical field of power distribution boxes, in particular to a power distribution box.

Background

a power distribution box, also called a power control box, is one of the distribution boxes. The distribution box is divided into a power distribution box and a lighting distribution box, and is the final-stage equipment of a power distribution system. The distribution box is a low-voltage distribution device formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement.

The power distribution box is internally composed of electrical elements and electric wires and cables, most of the problems of the existing power distribution box are caused by that the electrical elements are not radiated in time due to overhigh temperature in the power distribution box, thus causing fire disasters and the like, the power distribution box in the prior art is provided with a heat radiating device and a fire extinguishing device which work independently, and is controlled by two independent systems, the installation and control cost is higher, the internal structure of the existing power distribution box is basically a rectangle, the space is smaller, the density of internal components can be increased by installing the heat radiating device and the fire extinguishing device simultaneously, the heat radiating effect is poor, and the existing heat radiating device mostly leads to the blowing and heat radiation through a fan, under the high temperature condition, the external temperature is very high, the blowing and heat radiating efficiency of the fan is low, the temperature of the electrical elements in the deep part in the power distribution box is reduced slowly, thereby causing the, causing losses, for which we propose a power distribution box.

Disclosure of Invention

The invention aims to provide a power distribution box to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a power distribution box, includes case shell and chamber door, chamber door one end is passed through the hinge and is connected with case shell one end rotation, be provided with components and parts mounting panel and heat dissipation extinguishing device in the case shell, and components and parts mounting panel inboard is fixed through spliced pole and case shell inner wall, heat dissipation extinguishing device is located components and parts mounting panel inboard.

Preferably, heat dissipation extinguishing device includes cold wind radiator unit, removes frame, contact frame, sealed frame and elastic drive piece, remove the frame cover in the components and parts mounting panel outside, and outer wall and case shell inner wall sliding connection, the contact frame is fixed in the removal frame outside, and sealed frame fixes in the chamber door inboardly, the installation of elastic drive piece is fixed on case shell inner wall, and is connected with removing the frame, cold wind radiator unit is located the case shell to it is fixed with removing the inboard both ends of frame.

Preferably, the elastic driving part is provided with two, and the two elastic driving parts are equidistantly distributed on the inner wall of the box shell, the elastic driving part comprises a supporting shaft, two track shafts, two spreading sleeves, a fixed plate, two spreading springs and a limiting part, two ends of the supporting shaft are fixed with the inner walls of two sides of the box shell, the fixed plate is fixed on the outer side of the supporting shaft, one ends of the two track shafts are respectively fixed with two ends of the supporting shaft, one ends of the two track shafts are connected with the movable frame in a sliding manner, pushing blocks are sleeved on the outer sides of the two track shafts in a sliding manner, the two spreading sleeves and the two spreading springs are respectively provided with two pushing blocks in a sliding manner, the two ends of the two spreading springs are respectively fixed with the fixed plate and the two spreading sleeves, connecting rods are arranged on the outer sides of the two spreading sleeves, two ends of the connecting rods are respectively connected, and is connected with the two strutting sleeves.

Preferably, the locating part includes telescopic cylinder, backup pad and bolt, telescopic cylinder base installation is fixed on the case shell inner wall, and the top is fixed with the backup pad, the bolt is equipped with two, and two bolts are fixed respectively at backup pad surface both ends to it pegs graft with two cover struts.

preferably, cold wind cooling module includes water tank, connecting plate, regulating spindle, the piece and the baffle of airing exhaust, the connecting plate is equipped with two, and is fixed with the inboard both ends of removal frame respectively, two the sliding tray has all been opened to the connecting plate inboard, and all is equipped with the connecting axle in the sliding tray, the water tank outer wall is fixed with two connecting axles, and the water tank outer wall all opens the arc wall, the regulating spindle is equipped with two, and two regulating spindles fix respectively in two connecting plate inboards to with the inboard sliding connection of arc wall, the baffle both ends are fixed with case shell both sides inner wall, and the baffle is located the water tank bottom outside, the installation of the piece of airing exhaust is fixed and is close to removal frame one side at the water tank, and the water tank top is equipped with the water inlet, the water inlet intercommunication has soft water pipe, and soft water pipe.

Preferably, the piece of airing exhaust is equipped with a plurality ofly, and a plurality ofly airs exhaust an equidistance and distribute and fix in the water tank outside, the piece of airing exhaust includes L venturi tube and shower head, L venturi tube one end and water tank intercommunication, and the other end is fixed with the shower head, be provided with the draught fan in the shower head.

preferably, the contact frame and the sealing frame are both made of an organic fiber rubber plate.

Preferably, a 2MM gap is formed between the inner wall of the moving frame and the outer side of the component mounting plate.

Preferably, the track shaft is sleeved with a telescopic spring, and two ends of the telescopic spring are respectively fixed with the support shaft and the pushing block.

Compared with the prior art, the invention has the beneficial effects that:

1. According to the invention, the components for the distribution box are arranged on the component mounting plate, when the temperature in the distribution box is too high, cold air is effectively discharged through the cold air cooling assembly, so that high-efficiency cooling is realized, and when a fire disaster is caused by too high stability, the fire disaster on the component mounting plate can be effectively extinguished by using the heat-dissipation fire extinguishing device, so that the damage of the components is reduced.

2. The contact frame and the sealing frame are both made of organic fiber rubber plates, so that the contact frame and the sealing frame are not easy to ignite under the condition of high-temperature fire.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present invention;

FIG. 2 is a cross-sectional back view of the present invention;

FIG. 3 is a side cross-sectional structural schematic view of the present invention;

FIG. 4 is a schematic view of the elastic driving member according to the present invention;

FIG. 5 is a schematic view of a cold-air heat dissipation assembly according to the present invention;

FIG. 6 is a schematic view of another angle structure of the cold air heat dissipation assembly of the present invention;

FIG. 7 is an enlarged view taken at A in FIG. 3;

FIG. 8 is an enlarged view of FIG. 5 at B;

FIG. 9 is a state diagram of the water tank of the present invention during air discharge and water discharge.

In the figure: 1-a box shell; 2-a box door; 3-component mounting plate; 4-heat dissipation fire extinguishing device; 5-a cold air heat dissipation assembly; 6-moving the frame; 7-a contact frame; 8-sealing the frame; 9-elastic driving piece; 10-supporting shaft; 11-an orbital axis; 12-an opening sleeve; 13-fixing the plate; 14-a spreader spring; 15-a limit piece; 16-a pushing block; 17-a connecting rod; 18-a telescopic cylinder; 19-a support plate; 20-a bolt; 21-a water tank; 22-a connecting plate; 23-an adjustment shaft; 24-a venting member; 25-a baffle plate; 26-a sliding groove; 27-a connecting shaft; 28-an arc-shaped groove; 29-a water inlet; 30-a soft water pipe; 31-an L-shaped tube; 32-a shower head; 33-expansion spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, a power distribution box shown in the figure comprises a box shell 1 and a box door 2, wherein one end of the box door 2 is rotatably connected with one end of the box shell 1 through a hinge, a component mounting plate 3 and a heat dissipation fire extinguishing device 4 are arranged in the box shell 1, the inner side of the component mounting plate 3 is fixed with the inner wall of the box shell 1 through a connecting column, and the heat dissipation fire extinguishing device 4 is located on the inner side of the component mounting plate 3.

heat dissipation extinguishing device 4 includes cold wind radiator unit 5, removes frame 6, contact frame 7, sealed frame 8 and elastic drive piece 9, remove 6 covers in the 3 outsides of components and parts mounting panel, and outer wall and 1 inner wall sliding connection of case shell, contact frame 7 is fixed in removing 6 outsides of frame, and sealed frame 8 fixes in 2 inboards of chamber door, elastic drive piece 9 erection fixation is on 1 inner wall of case shell, and is connected with removing frame 6, cold wind radiator unit 5 is located case shell 1 to it is fixed with 6 inboard both ends of removal frame, realizes heat dissipation and fire extinguishing function through heat dissipation extinguishing device 4, effectively remains inner wall components and parts and do not burnt.

the elastic driving pieces 9 are arranged in two numbers and are distributed on the inner wall of the box shell 1 at equal intervals, each elastic driving piece 9 comprises a supporting shaft 10, two track shafts 11, two propping sleeves 12, two fixing plates 13, two propping springs 14 and limiting pieces 15, wherein the two ends of each supporting shaft 10 are fixed with the inner walls of the two sides of the box shell 1, the fixing plates 13 are fixed on the outer sides of the supporting shafts 10, the two track shafts 11 are arranged, one ends of the two track shafts 11 are respectively fixed with the two ends of each supporting shaft 10, one ends of the two track shafts 11 are connected with the movable frame 6 in a sliding mode, the outer sides of the two track shafts are respectively sleeved with pushing blocks 16 in a sliding mode, the propping sleeves 12 and the propping springs 14 are respectively sleeved on the outer sides of the supporting shafts 10, the two ends of the two propping springs 14 are respectively fixed with the fixing plates 13 and the propping sleeves 12, the outer sides of the two propping sleeves 12 are respectively provided with connecting rods 17, the limiting piece 15 is fixed on the inner wall of the box shell 1 and connected with the two expansion sleeves 12, and the elastic driving piece 9 provides elastic force to push the movable frame 6 to move.

The locating part 15 includes telescopic cylinder 18, backup pad 19 and bolt 20, telescopic cylinder 18 pedestal mounting is fixed on case shell 1 inner wall, and the top is fixed with backup pad 19, bolt 20 is equipped with two, and two bolts 20 are fixed respectively at backup pad 19 surperficial both ends to strut the cover 12 grafting with two, strut the cover 12 and carry on spacingly to two through locating part 15 is effectual.

The specific implementation method comprises the following steps: when the distribution box works outdoors, the box door 2 and the box shell 1 are normally closed, when a fire disaster occurs inside the box shell 1, the internal electrical components are self-protected due to the fire disaster to be powered off, at the moment, the telescopic cylinder 18 retracts due to the power failure, the support plate 19 moves downwards to separate the bolt 20 from the expansion sleeve 12, the expansion spring 14 elastically deforms to generate elastic force to push the two expansion sleeves 12 to move outwards, meanwhile, the telescopic spring 33 elastically deforms to push the push block 16 to move outwards to push the moving frame 6 to move outwards, so that the contact frame 7 fixed on the outer side of the moving frame 6 is inserted into the sealing frame 8 on the box door 2, the oxygen input in the space between the components and the box door 2 is reduced, the internal fire source is extinguished in an anoxic mode, meanwhile, the connecting plate 22 is driven to move along with the movement of the moving frame 6, so that the water tank 21 moves towards the box door 2, and when moving, the water tank 21 bottom can collide with baffle 25, make water tank 21 take place the slope, simultaneously when connecting axle 27 removes to the 26 ends of sliding tray, connecting plate 22 continues to remove along with removing frame 6, can make regulating spindle 23 remove along arc wall 28 this moment, thereby make water tank 21 slope, make inside liquid inflow L venturi tube 31 one end, liquid is taken out to the draught fan negative pressure in the rethread shower head 32, the realization is put out a fire to regional spraying between components and parts mounting panel 3 and the 1 inner wall of case shell, effectual clear going out to the inside burning things which may cause a fire of switch board, it is impaired to reduce components and parts.

Referring to fig. 1-9, the illustrated cold air heat dissipation assembly 5 includes two water tanks 21, two connection plates 22, two adjusting shafts 23, two air exhaust members 24 and a baffle 25, the two connection plates 22 are respectively fixed to two ends of the inner side of the movable frame 6, the inner sides of the two connection plates 22 are respectively provided with a sliding groove 26, the sliding groove 26 is internally provided with a connecting shaft 27, the outer wall of the water tank 21 is fixed to the two connecting shafts 27, the outer wall of the water tank 21 is provided with an arc-shaped groove 28, the two adjusting shafts 23 are respectively fixed to the inner sides of the two connection plates 22 and are slidably connected to the inner sides of the arc-shaped grooves 28, two ends of the baffle 25 are fixed to the inner walls of two sides of the box housing 1, the baffle 25 is located at the outer side of the bottom of the water tank 21, the air exhaust members 24 are installed and fixed to one side of the water tank 21 close to, and one end of the soft water pipe 30 is connected with an external water supply device, and the other end of the soft water pipe extends into the bottom of the water tank 21, so that the cold air discharged by the cold air radiating assembly 5 can efficiently radiate the box shell 1.

an air exhaust 24 is equipped with a plurality ofly, and a plurality ofly airs exhaust 24 equidistance and distribute and fix in the water tank 21 outside, an air exhaust 24 includes L venturi tube 31 and shower head 32, L venturi tube 31 one end and water tank 21 intercommunication, and the other end is fixed with shower head 32, be provided with the draught fan in the shower head 32, can realize high-efficient quick discharge air conditioning through an air exhaust 24.

The specific implementation method comprises the following steps: when the block terminal is closed, let in moisture for the block terminal through maintainer or nurse personnel regularly, make water tank 21 internal water content be in half full state, when the inside high temperature of block terminal, draught fan through setting up in shower head 32 rotates, carry out the negative pressure convulsions, and water tank 21 is in relative encapsulated situation, only communicate with the external world through soft water pipe 30, and soft water pipe 30 bottom stretches into under the liquid level, thereby make the external gas of drawing water tank 21, after the liquid cooling in through water tank 21, rethread shower head 32 discharges, utilize cold wind to make rapid cooling in the block terminal

The contact frame 7 and the sealing frame 8 are both made of organic fiber rubber plates, so that the contact frame and the sealing frame are not easy to ignite under the condition of high-temperature fire.

A2 MM gap is arranged between the inner wall of the movable frame 6 and the outer side of the component mounting plate 3, so that the movable frame can move more smoothly, and the problem that one end of the movable frame is too high in air pressure and cannot move smoothly is avoided.

The outside of the track shaft 11 is sleeved with a telescopic spring 33, and two ends of the telescopic spring 33 are respectively fixed with the support shaft 10 and the pushing block 16, so that the pushing force of the pushing block 16 is increased.

in this scheme, be equipped with level sensor in the water tank 21 and detect the judgement to the water level, from having moisture absorption sponge in the shower head 32, can filter the discharge to the overweight gas of moisture, avoid corrosion components and parts, put out a fire at heat dissipation extinguishing device 4 simultaneously and once afterwards, need change or the maintenance just can carry out next use to cold wind radiator unit 5.

In the scheme, the telescopic cylinder 18 is preferably of an SDA32-5 type, and circuits and control related to the telescopic cylinder are all in the prior art and are not described in too much detail herein.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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