Energy-saving explosion-proof LED driving power supply and explosion-proof method thereof

Abstract

The invention relates to an energy-saving explosion-proof LED driving power supply and an explosion-proof method thereof.The energy-saving explosion-proof LED driving power supply comprises a power supply body and further comprises an explosion-proof shell made of a metal material, the explosion-proof shell comprises a substrate and an explosion-proof cover detachably connected with the substrate in a sealed mode, the substrate is used for being fixedly connected with the power supply body, and the explosion-proof cover covers the power supply body; gaps exist between the inner wall and the inner top of the explosion-proof cover and the corresponding outer side surface of the power supply body, and a plurality of gaps are communicated to form an explosion-proof space; the upper surface of the power supply body is provided with a plurality of heat dissipation slots communicated with the explosion-proof space; a large-area sandy soil bag layer can be arranged, it is guaranteed that the amount of sandy soil is sufficient, meanwhile, the functions of smoke outlet position detection and fixed-point sandy soil covering at the smoke outlet position are achieved, and besides the air drainage function, the rotating blades further have the additional effects of preventing and scattering sandy soil caking and draining the sandy soil.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion-proof LED drive power supplies, and more particularly, to an energy-saving explosion-proof LED drive power supply and an explosion-proof method thereof. Background Art

[0002] As an efficient, energy-saving and environmentally friendly lighting product, when an LED explosion-proof lamp is applied in a specific environment, its drive power supply also needs to have explosion-proof functions. This is to prevent danger caused by any sparks during the lighting process. In these environments, the circuits of the lamp itself and the emergency power supply must be sealed to prevent dust, water and fire, so as to ensure the safety of use. For example, in environments such as gas stations, mines, and dust workshops, due to the presence of flammable and explosive substances such as gas, gas, and dust, the LED drive power supply needs to meet relevant explosion-proof standards to ensure that no danger will occur when used in these environments;

[0003] At present, the explosion-proof of LED drive power supplies mostly starts from the material aspect, but there is no good intelligent solution for the fire caused by circuit failures, and there is a need for an energy-saving explosion-proof LED drive power supply and an explosion-proof method that can well handle such situations. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an energy-saving explosion-proof LED drive power supply and an explosion-proof method for an energy-saving explosion-proof LED drive power supply in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problems is:

[0006] An energy-saving explosion-proof LED drive power supply is constructed, including a power supply body. Among them, it also includes an explosion-proof shell made of metal material. The explosion-proof shell includes a substrate and an explosion-proof cover detachably and hermetically connected to the substrate. The substrate is used for fixedly connecting the power supply body, and the explosion-proof cover covers the power supply body. There are gaps between the inner wall and the inner top of the explosion-proof cover and the corresponding outer surface of the power supply body, and multiple gaps communicate to form an explosion-proof space. A plurality of heat dissipation slots communicating with the explosion-proof space are arranged on the upper surface of the power supply body. A layer of sand bags is arranged on the inner top of the explosion-proof space, and a track is arranged below the sand bag layer. A cross plate is slidably arranged on the track. A funnel-shaped groove is formed on the cross plate. Two infrared emitting tubes and an infrared receiving tube are distributed on the lower surface of the cross plate at the edge of the funnel-shaped groove. The two infrared emitting tubes and the infrared receiving tube form a smoke detection unit, and the detection space is located inside the funnel-shaped groove. A rotating blade and a blade driving unit are arranged on the upper surface of the cross plate. A cutting edge is arranged on the outside of the rotating blade. A cross plate driving unit and a single-chip microcomputer for driving the cross plate to move are arranged in the explosion-proof space. The single-chip microcomputer receives the data of the smoke detection unit and controls the operation of the cross plate driving unit and the blade driving unit.

[0007] For the energy-saving explosion-proof LED drive power supply described in the present invention, among them, the track includes a first track rod and a second track rod arranged side by side horizontally. The upper surfaces of the first track rod and the second track rod provide a supporting force for the sand bag layer, and an L-shaped slide rail is fixed on the lower surface. The two ends of the cross plate are respectively slidably connected to the two slide rails.

[0008] For the energy-saving explosion-proof LED drive power supply described in the present invention, among them, the cross plate driving unit includes a reciprocating lead screw and a lead screw motor. Two bearing seats for installing the reciprocating lead screw are fixed on any one of the slide rails. The lead screw motor is fixed on the inner wall of the explosion-proof cover.

[0009] For the energy-saving explosion-proof LED drive power supply described in the present invention, among them, the blade driving unit includes a cross bar arranged on the cross plate. A bearing seat facing the center of the funnel-shaped groove is arranged on the cross bar. A longitudinal rod is rotatably connected to the bearing seat. The rotating blade is arc-shaped and the inner side is inclined downward. The rotating blade is fixed at the upper end of the longitudinal rod. The blade driving unit also includes a micro motor that drives the longitudinal rod to rotate through a bevel gear assembly.

[0010] The energy-saving explosion-proof LED driver power supply described in the present invention, wherein both the first track rod and the second track rod are copper rods, and the positive and negative electrodes of the micro motor are electrically connected to the first track rod and the second track rod respectively; the smoke detection unit further includes a control circuit board, and both the infrared emission tube and the infrared reception tube are electrically connected to and controlled by the control circuit board, and the control circuit board is electrically connected to the single-chip microcomputer through the first track rod and the second track rod; both of the two infrared emission tubes and the infrared reception tube are embedded on the lower surface of the cross plate.

[0011] The energy-saving explosion-proof LED driver power supply described in the present invention, wherein a power supply battery is arranged on the inner surface of the explosion-proof cover; a control panel and an alarm which are electrically connected to the single-chip microcomputer are arranged on the outer surface of the explosion-proof cover.

[0012] The energy-saving explosion-proof LED driver power supply described in the present invention, wherein an explosion-proof valve is further arranged on the explosion-proof cover, and the explosion-proof valve is used for opening and relieving pressure when the pressure inside the explosion-proof cover exceeds the set pressure value.

[0013] An explosion-proof method for an energy-saving explosion-proof LED driver power supply, which applies the energy-saving explosion-proof LED driver power supply as described above, wherein the method includes the steps:

[0014] Under the normal operation state, the smoke detection unit conducts smoke detection and sends the detection result to the single-chip microcomputer; if no smoke appears in the detection result received by the single-chip microcomputer, it does not act, otherwise it alarms externally and automatically executes the following explosion-proof operation:

[0015] The single-chip microcomputer controls the operation of the cross plate driving unit to drive the cross plate to move, and at the same time, the single-chip microcomputer controls the operation of the blade driving unit to drive the rotating blade to rotate to suck the air below the funnel-shaped groove to the upper part of the funnel-shaped groove; while the rotating blade rotates, it squeezes the sand bag layer and breaks up the possible sand lumps.

[0016] The single-chip microcomputer receives the data fed back by the smoke detection unit, determines the area with the highest smoke concentration, and drives the cross plate driving unit to operate to drive the cross plate to move to this area.

[0017] The single-chip microcomputer controls the operation of the blade driving unit to drive the rotating blade to reverse, cuts the sand bag layer with the blade edge, and rotates to guide the sand to flow down. The sand enters the power supply body through the funnel-shaped groove and the heat dissipation slot corresponding to this area, and covers the surface of the components generating smoke.

[0018] The beneficial effects of the present invention are as follows: Under normal operating conditions, the smoke detection unit detects smoke and sends the detection result to the single-chip microcomputer; if the detection result received by the single-chip microcomputer shows no smoke, it does not act, otherwise it gives an external alarm and automatically performs the following explosion-proof operations: The single-chip microcomputer controls the operation of the cross-board driving unit to drive the cross-board to move. At the same time, the single-chip microcomputer controls the operation of the blade driving unit to drive the blades to rotate and suck the air below the funnel-shaped groove to the upper part of the funnel-shaped groove; while the blades are rotating, they squeeze the sandbag layer and break up any possible sand clumps; the single-chip microcomputer receives the data fed back by the smoke detection unit, determines the area with the highest smoke concentration, and drives the cross-board driving unit to operate to drive the cross-board to move to this area; the single-chip microcomputer controls the operation of the blade driving unit to drive the blades to reverse, use the blade edges to cut open the sandbag layer, and rotate to guide the sand to flow down. The sand enters the power supply body through the funnel-shaped groove and the heat dissipation slots corresponding to this area, and covers the surface of the components generating smoke.

[0019] By applying the method of the present application, the explosion-proof shell can improve the explosion-proof performance. Moreover, not only can a large-area sandbag layer be set to ensure an adequate amount of sand, but also it has the functions of detecting the smoke emergence position and covering the sand at the fixed point of the smoke emergence position. In addition, in addition to the function of air diversion, the rotating blades also have the additional effects of preventing and breaking up sand clumps and guiding the sand flow; the application structure of the present application can be obtained by improving the existing LED driving power supply, with low transformation cost, and is suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will further explain the present invention in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0021] Figure 1 is a cross-sectional view of the energy-saving explosion-proof LED driving power supply of the preferred embodiment of the present invention along the length direction;

[0022] Figure 2 is Figure 1 an enlarged schematic view of part A in

[0023] Figure 3 is a cross-sectional view of the track of the energy-saving explosion-proof LED driving power supply of the preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, rather than all 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.

[0025] The energy-saving explosion-proof LED driver power supply of the preferred embodiment of the present invention, as Figure 1 shown, also refer to Figure 2 and Figure 3 , includes a power supply body 1, and further includes an explosion-proof housing 2 made of a metal material. The explosion-proof housing 2 includes a substrate 20 and an explosion-proof cover 21 detachably and hermetically connected to the substrate 20. The substrate 20 is used for fixedly connecting the power supply body 1 (which can be fixed by means such as glue), and the explosion-proof cover 21 covers the power supply body 1; there are gaps between the inner wall and the inner top of the explosion-proof cover 21 and the corresponding outer surface of the power supply body 1, and multiple gaps are connected to form an explosion-proof space; a plurality of heat dissipation slots 10 communicating with the explosion-proof space are provided on the upper surface of the power supply body 1 (which is convenient for sand to enter while dissipating heat); a sandbag layer 30 is provided on the inner top of the explosion-proof space, a track 31 is provided below the sandbag layer 30, a cross plate 32 is slidably arranged on the track 31, a funnel-shaped groove 320 is formed on the cross plate 32, and two infrared emitting tubes 40 and an infrared receiving tube 41 are distributed on the lower surface of the cross plate 32 at the edge of the funnel-shaped groove 320. The two infrared emitting tubes 40 and the infrared receiving tube 41 constitute a smoke detection unit 4 (the smoke detection unit 4 also includes the control circuit board described below), and the detection space is located inside the funnel-shaped groove 320; a rotating blade 50 and a blade driving unit 51 are provided on the upper surface of the cross plate 32, and a cutting edge 500 is provided on the outside of the rotating blade 50; a cross plate driving unit 6 and a single-chip microcomputer 7 for driving the cross plate 32 to move are provided in the explosion-proof space. The single-chip microcomputer 7 receives the data of the smoke detection unit 4 and controls the operation of the cross plate driving unit 6 and the blade driving unit 51;

[0026] Under normal operating conditions, the smoke detection unit 4 detects smoke and sends the detection result to the single-chip microcomputer 7; if the detection result received by the single-chip microcomputer 7 shows no smoke, it does not act, otherwise it alarms externally and automatically performs the following explosion-proof operations: the single-chip microcomputer 7 controls the operation of the cross-board driving unit 6 to drive the cross-board 32 to move, and at the same time the single-chip microcomputer 7 controls the operation of the blade driving unit 51 to drive the rotating blade 50 to rotate to suck the air below the funnel-shaped groove 320 to the upper part of the funnel-shaped groove 320 (passing through the inside of the funnel-shaped groove 420 to ensure that the smoke detection unit 4 can accurately detect); while the rotating blade 50 rotates, it squeezes the sandbag layer 30 and breaks up the possible sand lumps; the single-chip microcomputer 7 receives the data fed back by the smoke detection unit 4, determines the area with the highest smoke concentration, and drives the cross-board driving unit 6 to operate to drive the cross-board 32 to move to this area; the single-chip microcomputer 7 controls the operation of the blade driving unit 51 to drive the blade to reverse, cuts the sandbag layer 30 with the blade edge, and rotates to guide the sand to flow down. The sand enters the power supply body through the funnel-shaped groove 320 and the heat dissipation slot 10 corresponding to this area, and covers the surface of the component generating smoke;

[0027] Applying the method of the present application, not only can a large-area sandbag layer be set to ensure sufficient sand quantity, but also it has the functions of detecting the smoke outlet position and covering the sand at the fixed point of the smoke outlet position. In addition, in addition to the function of air diversion, the rotating blade also has the additional effects of preventing and breaking up sand lumps and guiding the sand flow; the application structure of the present application can be obtained by improving the existing LED driving power supply, with low transformation cost, and is suitable for popularization and application.

[0028] Preferably, the track 31 includes a first track rod 310 and a second track rod 311 arranged side by side horizontally. The upper surfaces of the first track rod 310 and the second track rod 311 provide support for the sandbag layer 30, and the lower surfaces are fixed with L-shaped slide rails 312; both ends of the cross-board 32 are slidably connected to the two slide rails 312 respectively;

[0029] Adopting this kind of structural design can effectively utilize the track 31 to disperse the weight of the sandbag layer 30, improve the reliability, and the structural design is very ingenious, which can better guarantee the spatial position relationship between the cross-board 32 and the sandbag layer 30, ensure that the rotating blade 50 contacts and acts on the sandbag layer 30 while not interfering with the sliding of the cross-board 32.

[0030] Preferably, the cross-board driving unit 6 includes a reciprocating lead screw 60 and a lead screw motor 61; two bearing seats 313 for installing the reciprocating lead screw are fixed on any one of the slide rails 312; the lead screw motor 61 is fixed on the inner wall of the explosion-proof cover 21; it is convenient to rely on the reciprocating lead screw 61 to adjust the position of the cross-board 32 back and forth to determine the smoke generation point.

[0031] Preferably, the blade driving unit 51 includes a cross bar 510 disposed on the cross plate 32. A bearing seat 511 is provided on the cross bar 510 and is aligned with the center of the funnel-shaped groove 320. A longitudinal rod 512 is rotatably connected to the bearing seat 511. The rotary blade 50 is arc-shaped and its inner side is inclined downward. The rotary blade 50 is fixed to the upper end of the longitudinal rod 512. The blade driving unit 51 further includes a micro motor 514 that drives the longitudinal rod 512 to rotate through a helical gear assembly 513;

[0032] During operation, the micro motor 514 drives the helical gear assembly 513 to rotate, thereby driving the longitudinal rod 512 to rotate, and further driving the rotary blade 50 to rotate. The helical gear assembly 513 can adopt a first helical gear and a second helical gear that mesh with each other. The first helical gear is connected to the micro motor 514, and the second helical gear is connected to the longitudinal rod.

[0033] Preferably, both the first track rod 310 and the second track rod 311 are copper rods. The positive and negative electrodes of the micro motor 514 are electrically connected to the first track rod 310 and the second track rod 311 respectively. The smoke detection unit 4 further includes a control circuit board 42. The infrared emitting tube 40 and the infrared receiving tube 41 are both electrically connected to the control circuit board 42 and controlled by it. The control circuit board 42 is electrically connected to the single-chip microcomputer 7 through the first track rod 310 and the second track rod 311. Both the two infrared emitting tubes 40 and the infrared receiving tubes 41 are embedded on the lower surface of the cross plate 32. The structure is reasonable and compact. Wiring through the first track rod 310 and the second track rod 311 can reduce the wires used inside and improve reliability.

[0034] Preferably, a power supply battery 8 is provided on the inner surface of the explosion-proof cover 21. A control panel 9 and an alarm 90 electrically connected to the single-chip microcomputer are provided on the outer surface of the explosion-proof cover 21. An explosion-proof valve 91 is further provided on the explosion-proof cover 21. The explosion-proof valve 91 is used to open and relieve pressure when the pressure inside the explosion-proof cover exceeds the set pressure value; it is convenient for operation control, alarm and overpressure protection.

[0035] An explosion-proof method for an energy-saving explosion-proof LED driving power supply, which applies the energy-saving explosion-proof LED driving power supply as described above. Among them, the method includes the steps:

[0036] Under normal operating conditions, the smoke detection unit detects smoke and sends the detection result to the single-chip microcomputer; if the single-chip microcomputer receives a detection result without smoke, it does not act, otherwise it alarms externally and automatically performs the following explosion-proof operation:

[0037] The single-chip microcomputer controls the operation of the cross plate driving unit to drive the cross plate to move. At the same time, the single-chip microcomputer controls the operation of the blade driving unit to drive the blade to rotate and suck the air below the funnel-shaped groove to the upper part of the funnel-shaped groove; while the blade rotates, it squeezes the sandbag layer and breaks up the possible sand clumps;

[0038] The single-chip microcomputer receives the data fed back by the smoke detection unit, determines the area with the highest smoke concentration, and drives the cross-board driving unit to operate to drive the cross-board to move to this area;

[0039] The single-chip microcomputer controls the operation of the blade driving unit, drives the blade to reverse, uses the blade edge to cut open the sandbag layer, and rotates to guide the sand to flow down. The sand enters the interior of the power supply body through the funnel-shaped groove and the heat dissipation slot corresponding to this area, and covers the surface of the component generating smoke;

[0040] Applying the method of the present application, not only can a large-area sandbag layer be set to ensure sufficient amount of sand, but also it has the functions of detecting the smoke outlet position and covering the sand at the fixed point of the smoke outlet position. In addition, in addition to the function of air diversion, the rotating blade also has the additional effects of preventing and breaking up sand caking and sand diversion; the application structure of the present application can be obtained by improving the existing LED driving power supply, with low transformation cost, and is suitable for popularization and application.

[0041] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present invention.

Claims

1. An energy-saving explosion-proof LED driver power supply, comprising a power supply body, characterized in that: It also includes an explosion-proof shell made of metal material, the explosion-proof shell includes a base plate and an explosion-proof cover detachably and sealedly connected to the base plate, the base plate is used to be fixedly connected to the power supply body, and the explosion-proof cover is arranged on the power supply body; there are gaps between the inner wall and the inner top of the explosion-proof cover and the corresponding outer surface of the power supply body, and multiple gaps are connected to form an explosion-proof space; the upper surface of the power supply body is provided with a plurality of heat dissipation grooves connected to the explosion-proof space; a sand bag layer is provided on the inner top of the explosion-proof space, a track is provided below the sand bag layer, a horizontal plate is slidably provided on the track, and the A funnel-shaped groove is provided on the horizontal plate, and two infrared transmitting tubes and one infrared receiving tube are distributed on the lower surface of the horizontal plate at the edge of the funnel-shaped groove. The two infrared transmitting tubes and the infrared receiving tube constitute a smoke detection unit, and the detection space is located inside the funnel-shaped groove; a rotating blade and a blade driving unit are provided on the upper surface of the horizontal plate, and a cutting edge is provided on the outer side of the rotating blade; a horizontal plate driving unit and a single-chip microcomputer for driving the movement of the horizontal plate are provided in the explosion-proof space, and the single-chip microcomputer receives data from the smoke detection unit and controls the operation of the horizontal plate driving unit and the blade driving unit.

2. The energy-saving explosion-proof LED driving power supply according to claim 1, characterized in that: The track includes a first track rod and a second track rod arranged side by side laterally, the upper surfaces of the first track rod and the second track rod provide support for the sand bag layer, and L-shaped slide rails are fixed on the lower surfaces; the two ends of the cross plate are respectively slidably connected to the two slide rails.

3. The energy-saving explosion-proof LED driving power supply according to claim 2, characterized in that: The transverse plate driving unit comprises a reciprocating screw and a screw motor; two bearing seats for mounting the reciprocating screw are fixed on any of the slide rails; and the screw motor is fixed on the inner wall of the explosion-proof cover.

4. The energy-saving explosion-proof LED driving power supply according to claim 2, characterized in that: The blade drive unit includes a cross bar arranged on the cross plate, a bearing seat is arranged on the cross bar and is directly opposite to the center of the funnel-shaped groove, a longitudinal rod is rotatably connected to the bearing seat, the rotating blade is arc-shaped and the inner side is arranged obliquely downward, and the rotating blade is fixed at the upper end of the longitudinal rod; the blade drive unit also includes a micro motor that drives the longitudinal rod to rotate through a bevel gear assembly.

5. The energy-saving explosion-proof LED driving power supply according to claim 4, characterized in that: The first track rod and the second track rod are both copper rods, and the positive and negative poles of the micro motor are electrically connected to the first track rod and the second track rod respectively; the smoke detection unit also includes a control circuit board, the infrared transmitting tube and the infrared receiving tube are both electrically connected to and controlled by the control circuit board, and the control circuit board is electrically connected to the single-chip microcomputer through the first track rod and the second track rod; the two infrared transmitting tubes and the infrared receiving tubes are both embedded on the lower surface of the horizontal plate.

6. The energy-saving explosion-proof LED driving power supply according to claim 5, characterized in that: The inner surface of the explosion-proof cover is provided with a power supply battery; the outer surface of the explosion-proof cover is provided with a control panel and an alarm electrically connected to the single-chip computer.

7. The energy-saving explosion-proof LED driving power supply according to claim 1, characterized in that: The explosion-proof cover is also provided with an explosion-proof valve, which is used to open and release pressure when the pressure inside the explosion-proof cover exceeds a set pressure value.

8. An explosion-proof method for an energy-saving explosion-proof LED driver power supply, using the energy-saving explosion-proof LED driver power supply as claimed in any one of claims 1 to 7, characterized in that: The method comprises the steps of: In normal operation, the smoke detection unit detects smoke and sends the detection results to the single-chip microcomputer; if the single-chip microcomputer receives the detection result that no smoke is present, it does not take action; otherwise, it gives an alarm and automatically performs the following explosion-proof operations: The single chip microcomputer controls the operation of the horizontal plate driving unit to drive the horizontal plate to move, and at the same time the single chip microcomputer controls the operation of the blade driving unit to drive the rotating blades to rotate and suck the wind below the funnel-shaped slot to the top of the funnel-shaped slot; The rotating blades squeeze the sand bag layer and break up any sand lumps that may exist while rotating; The single chip microcomputer receives the data fed back by the smoke detection unit, determines the area with the highest smoke concentration, and drives the horizontal plate driving unit to drive the horizontal plate to move to the area; The single chip microcomputer controls the operation of the blade drive unit, driving the rotating blades to reverse, using the cutting edge to cut the sand bag layer, and rotating to guide the sand to flow down. The sand enters the power supply body through the funnel-shaped groove and the corresponding heat dissipation grooves in the area, and covers the surface of the component that generates smoke.

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