Output intrinsically safe power supply convenient to maintain

Abstract

The utility model relates to the technical field of safety power supplies, in particular to an output intrinsically safe power supply convenient to maintain, which comprises an explosion-proof box, a power supply main body, a sealing end cover and a heat dissipation mechanism, and is characterized in that the explosion-proof box is provided with a positioning mechanism for fixing the power supply main body in the explosion-proof box; a plurality of wiring openings are formed in an opening of the explosion-proof box, a plurality of sealing insertion ends in one-to-one correspondence with the wiring openings are arranged at the end, close to the explosion-proof box, of the sealing end cover, and the heat dissipation mechanism comprises a first heat conduction column, a second heat conduction column and a fan used for driving air to flow which are arranged on the outer side wall of the explosion-proof box; by arranging the sealing end cover and the positioning mechanism, the installation stability of the power supply main body is improved, meanwhile, disassembly, assembly and maintenance of the explosion-proof box are facilitated, heat dissipation of the power supply is facilitated by arranging the first heat conduction column, the second heat conduction column and the fan, and meanwhile, the connecting end of the power supply main body is located in the explosion-proof box, direct contact with external air is avoided, and safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safety power supply, specifically to the output intrinsically safe power supply of convenient maintenance. BACKGROUND

[0002] The output intrinsically safe power supply is a specially designed power supply for providing safe power in potentially explosive environments. These power supplies are classified as Class I intrinsically safe devices, meaning they are designed to not produce enough heat or sparks to ignite flammable gases or dust under normal operating conditions as well as under fault conditions.

[0003] In the Chinese patent document library, the patent with the application number 201920785998.9 discloses a KPD series output intrinsically safe power supply, which realizes heat dissipation by installing a motor and fan blades on the explosion-proof box to drive the air flow inside the explosion-proof box. In actual work, the power supply connection end is located inside the explosion-proof box and directly contacts with the external air, which may still cause danger. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an output intrinsically safe power supply of convenient maintenance to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: the output intrinsically safe power supply of convenient maintenance, comprising an explosion-proof box, a power supply main body placed inside the explosion-proof box, a sealing end cover for sealing the opening of the explosion-proof box and a heat dissipation mechanism, the explosion-proof box is provided with a positioning mechanism for fixing the power supply main body inside the explosion-proof box, a plurality of wiring openings are arranged at the opening of the explosion-proof box, a plurality of sealing plug-in ends corresponding to the wiring openings are arranged on one end of the sealing end cover close to the explosion-proof box, and the heat dissipation mechanism comprises a first heat conduction column, a second heat conduction column arranged on the outer side wall of the explosion-proof box and a fan for driving air flow.

[0006] Further, the positioning mechanism comprises a movable plate horizontally movably arranged on one side inside the explosion-proof box, a linear drive member for pushing the movable plate to move horizontally and a plurality of guide rods, the linear drive member pushes the movable plate to move horizontally to tightly push the power supply main body against the inner side wall of the explosion-proof box.

[0007] Further, the movable plate and the guide rods are both made of metal material, and one end of each of the plurality of guide rods extends to the outside of the explosion-proof box.

[0008] Further, the second heat-conducting column is arranged on the side of the explosion-proof box away from the positioning mechanism, the first heat-conducting column is arranged on the back of the explosion-proof box, and the first heat-conducting column at the edge of the back of the explosion-proof box is provided with a threaded section and a locking nut away from the end of the explosion-proof box, the outer diameter of the threaded section is smaller than the outer diameter of the first heat-conducting column, and the edge of the fan is provided with a mounting hole matched with the threaded section.

[0009] Further, the upper part of the interior of the explosion-proof box is provided with a placing rack for placing a desiccant.

[0010] Further, the installation part is arranged on the two sides of the opening of the explosion-proof box, and the installation part and the sealing end cover are both provided with mutually matched mounting holes.

[0011] Further, the interior of the explosion-proof box is provided with a temperature and humidity sensor.

[0012] Further, the wiring opening and the sealing plug-in end are matched to form a circular through hole, and the inner side wall of the circular through hole is provided with a sealing gasket.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) the output intrinsically safe power supply convenient to maintain is provided with the explosion-proof box, the first heat-conducting column and the second heat-conducting column are arranged on the outer side wall of the explosion-proof box, and the fan drives the flow of air, so that the heat generated when the power supply body works is conducted out, heat dissipation of the power supply is realized, meanwhile, the connecting end of the power supply body is located in the interior of the explosion-proof box, so that the safety is improved.

[0015] (2) the sealing end cover is arranged at the opening of the explosion-proof box, the interior of the explosion-proof box is provided with the positioning mechanism, so that the stability of the installation of the power supply body is improved, and the explosion-proof box is convenient to disassemble and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an explosion schematic view of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 3 It is a top sectional structure schematic view of the utility model;

[0019] Figure 4 It is an explosion schematic view of the back of the explosion-proof box of the utility model;

[0020] Figure 5 It is a three-dimensional structure schematic view of the explosion-proof box of the utility model.

[0021] In the figure: 1, power supply main body; 2, explosion-proof box; 201, wiring opening; 202, mounting portion; 203, placing rack; 3, sealing end cover; 301, sealing plug-in end; 4, positioning mechanism; 401, movable plate; 402, linear drive; 403, guide rod; 5, heat dissipation mechanism; 501, first heat-conducting column; 5011, threaded section; 5012, locking nut; 502, second heat-conducting column; 503, fan. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. In the description of the utility model, it should be explained that the terms "first", "second" and the like are only for the purpose of description and do not mean to particularly indicate the order or sequence, nor to limit the utility model. They are only used to distinguish components or operations described by the same technical terms and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the term "comprising" and any variations thereof in the specification and claims and the above drawings are intended to cover non-exclusive inclusion.

[0023] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, and can also be detachably connected; it can be mechanically connected, and can also be electrically connected; it can be directly connected, and can also be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, in the description of the utility model, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the utility model.

[0024] Please refer to Figures 1-5The utility model provides an output intrinsic safety type power supply of convenient maintenance, including explosion -proof box 2, the power supply main body 1 of placing in the inside of explosion -proof box 2, the sealing end cover 3 for the sealing of explosion -proof box 2 opening place and heat abstract mechanism 5, in this embodiment, explosion -proof box 2 opening is set at its front end face, and the both sides of explosion -proof box 2 opening are provided with mounting portion 202, and the mounting hole of mutual cooperation is set up on mounting portion 202 and sealing end cover 3, and the both are installed and fixed through bolt, in order to improve the sealing property can set up the plug -in portion of the back of sealing end cover 3 with the explosion -proof box 2 opening adaptation, and the abutting surface of plug -in portion and explosion -proof box 2 is provided with sealing ring, avoids the connecting end of power supply main body 1 and directly exposes outside and contacts with the gas of outside, and the danger occurs.

[0025] Positioning mechanism 4 for fixing power supply main body 1 in the inside of explosion -proof box 2 is set up on explosion -proof box 2, in this embodiment, positioning mechanism 4 includes the movable plate 401 of horizontally movable setting in the inside one side of explosion -proof box 2, the linear drive piece 402 of pushing movable plate 401 horizontal movement and several guide rods 403, and linear drive piece 402 pushes movable plate 401 horizontal movement and tight in the inside wall of explosion -proof box 2 by the top of movable plate 401, specifically, linear drive piece 402 is the threaded rod of the screw thread connection with the side wall of explosion -proof box 2, threaded rod is rotationally connected with movable plate 401, and threaded rod extends to the outside fixed with knob of explosion -proof box 2, and movable plate 401 is pushed horizontally by rotating threaded rod, several guide rods 403 are mutually parallel with threaded rod, and are all set up on the side of movable plate 401 close to threaded rod, improve the stability of power supply main body 1 installation, also convenient later dismounting maintenance, further, linear drive piece 402 can also be set as electric push rod according to the need.

[0026] In this embodiment, movable plate 401 and guide rod 403 are all metal materials, and the end of several guide rods 403 all extends to the outside of explosion -proof box 2, and movable plate 401 is tightly attached to the side of power supply main body 1, can export the heat of power supply main body 1 work to the outside of explosion -proof box 2, and heat dissipation is more uniform.

[0027] The top of explosion -proof box 2 opening place is provided with several wiring openings 201, and the one end of sealing end cover 3 close to explosion -proof box 2 is provided with several sealing plug -in ends 301 corresponding with wiring openings 201, and the circular through -hole is formed by the cooperation of wiring openings 201 and sealing plug -in ends 301, and sealing gasket is set up on the inner side wall of circular through -hole, and sealing gasket is abutted on the outer side wall of cable, which is convenient for wiring and further ensures the sealing of explosion -proof box 2.

[0028] The heat dissipation mechanism 5 comprises a first heat conduction column 501, a second heat conduction column 502 and a fan 503 for driving air flow arranged on the outer side wall of the explosion-proof box 2, in the embodiment, the second heat conduction column 502 is arranged on the side of the explosion-proof box 2 away from the positioning mechanism 4, the first heat conduction column 501 is arranged on the back of the explosion-proof box 2, and the first heat conduction column 501 at the edge of the back of the explosion-proof box 2 away from the end of the explosion-proof box 2 is provided with a threaded section 5011 and a locking nut 5012, the outer diameter of the threaded section 5011 is smaller than the outer diameter of the first heat conduction column 501, the edge of the fan 503 is provided with a mounting hole matched with the threaded section 5011, so that the fan 503 can be directly mounted on the end of the first heat conduction column 501, and in working, the first heat conduction column 501 and the second heat conduction column 502 can conduct the heat generated by the power supply body 1 to the outside, and the fan 503 can drive the flow of air, so that the heat dissipation effect is better.

[0029] In the embodiment, the upper part of the explosion-proof box 2 is provided with a placing rack 203 for placing the drying agent, so that the power supply body 1 is ensured to be in a dry environment, and danger caused by excessive humidity is avoided.

[0030] Further, the temperature and humidity sensor is installed in the explosion-proof box 2, so that the opening and closing of the fan 503 and the replacement of the drying agent can be controlled according to the actual working condition, and the use is more convenient.

[0031] Working principle: in working, the power supply body 1 is placed in the explosion-proof box 2, the drying agent is placed on the top end of the placing rack 203, the movable plate 401 is driven to move horizontally in the explosion-proof box 2 through the linear driving piece 402, then the power supply body 1 is pushed to move horizontally in the explosion-proof box 2, until the power supply body 1 abuts against the corner in the explosion-proof box 2, the back of the power supply body 1 is tightly attached to the first heat conduction column 501, the side of the power supply body 1 away from the movable plate 401 is tightly attached to the second heat conduction column 502, after the wires are connected and fixed to the power supply body 1, the wires are sent out to the outside of the explosion-proof box 2 through the wire outlet 201, and finally the sealing end cover 3 is closed, and is installed and fixed through the bolt and the mounting part 202, in working, the first heat conduction column 501 and the second heat conduction column 502 can conduct the heat generated by the power supply body 1 to the outside, and the fan 503 can drive the flow of air, so that the heat dissipation effect is better.

[0032] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A maintenance-convenient output intrinsically safe power supply comprising an explosion-proof box (2), a power supply main body (1) placed inside the explosion-proof box (2), a sealing end cover (3) for sealing an opening of the explosion-proof box (2), and a heat dissipation mechanism (5), characterized in that: The explosion-proof box (2) is provided with a positioning mechanism (4) for fixing the power supply body (1) inside the explosion-proof box (2), the explosion-proof box (2) is provided with a plurality of wire opening (201) at the opening, the sealing end cover (3) is provided with a plurality of sealing plug ends (301) corresponding to the wire opening (201) at one end close to the explosion-proof box (2), and the heat dissipation mechanism (5) comprises a first heat conducting column (501), a second heat conducting column (502) and a fan (503) for driving air flow arranged on the outer side wall of the explosion-proof box (2).

2. The convenient maintenance output intrinsically safe power supply according to claim 1, characterized in that: The positioning mechanism (4) comprises a movable plate (401) movably arranged on one side of the explosion-proof box (2), a linear driving element (402) for pushing the movable plate (401) to move horizontally, and a plurality of guide rods (403), the linear driving element (402) pushes the power supply body (1) to be tightly pressed against the inner side wall of the explosion-proof box (2) by moving the movable plate (401) horizontally.

3. A convenient maintenance output intrinsically safe power supply according to claim 2, characterized in that: The movable plate (401) and the guide rod (403) are both made of metal, and one end of the plurality of guide rods (403) extends to the outside of the explosion-proof box (2).

4. The convenient maintenance output intrinsically safe power supply of claim 1, wherein: The second heat conducting column (502) is arranged on the side of the explosion-proof box (2) away from the positioning mechanism (4), the first heat conducting column (501) is arranged on the back of the explosion-proof box (2), and the first heat conducting column (501) away from the explosion-proof box (2) is provided with a threaded section (5011) and a locking nut (5012) at one end of the edge of the back of the explosion-proof box (2), the outer diameter of the threaded section (5011) is smaller than the outer diameter of the first heat conducting column (501), and the edge of the fan (503) is provided with a mounting hole matched with the threaded section (5011).

5. The convenient maintenance output intrinsically safe power supply of claim 1, wherein: The upper part of the explosion-proof box (2) is provided with a placing rack (203) for placing a drying agent.

6. The convenient maintenance output intrinsically safe power supply of claim 1, wherein: The explosion-proof box (2) is provided with a mounting portion (202) on both sides of the opening, and the mounting portion (202) and the sealing end cover (3) are both provided with mutually matched mounting holes.

7. The convenient maintenance output intrinsically safe power supply of claim 1, wherein: A temperature and humidity sensor is installed in the explosion-proof box (2).

8. The convenient maintenance output intrinsically safe power supply of claim 1, wherein: The wire opening (201) and the sealing plug end (301) are matched to form a circular through hole, and a sealing gasket is arranged on the inner side wall of the circular through hole.

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