Power distribution box for controller installation

Abstract

The utility model provides a power distribution box for controller installation, and belongs to the technical field of distribution boxes. Comprising a box body, an air inlet is formed in the side wall of the box body, a dustproof net is arranged outside the air inlet, and the dustproof net can be rapidly and detachably fixed to the outer wall of the box body through an elastic clamping structure; a cooling fan is arranged on the side wall of the box body, a cooling fan mounting opening is formed in the side wall of the box body, and the cooling fan can be quickly and detachably fixed in the cooling fan mounting opening through a sliding clamping structure. According to the utility model, the connection of the dustproof net and the heat dissipation fan on the box body is improved, so that the dustproof net and the heat dissipation fan are both of a clamping type fixing structure and are convenient to mount and dismount, thereby improving the problem that in the prior art, a plurality of groups of power distribution cabinets are densely arranged together in a large-scale factory, and the power distribution cabinet is inconvenient to mount and replace when being mounted and replaced. And gaps of other equipment or power distribution cabinets may be interfered, so that the overall layout and the operation efficiency are influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of distribution boxes, and in particular relates to a power distribution box for installing a controller. Background Art

[0002] The power distribution box provides stable power supply and distribution for PLC (Programmable Logic Controller, usually models S7-1200 / 1500 and Et200 sp), ensuring the normal operation of PLC and its ancillary equipment. It prevents overload and short circuit through circuit protection devices, and provides control interfaces to connect sensors and actuators. It can detect power status in real time, enhancing the reliability and safety of the PLC system.

[0003] Compared to common distribution boxes, PLC distribution boxes, as electronic processing units, are more likely to generate heat, causing the temperature of the distribution box to increase. Existing heat dissipation structures usually fix the cooling fan on the distribution box to prevent high temperature from damaging electronic components. The dust screen is a component used in conjunction with the cooling fan to further improve the overall practicality of the distribution box. After long-term use, the PLC distribution box is prone to cooling fan failure and dust screen replacement and cleaning. Usually, the cooling fan and dust screen are fixed to the outer wall of the box with bolts, and the distribution cabinets in large factories are generally arranged together in multiple groups. During installation and replacement, it may interfere with the gaps between other equipment or distribution cabinets, affecting the overall layout and operating efficiency. Replacement and maintenance operations are complicated and difficult. Therefore, it is necessary to propose improvements. Utility Model Content

[0004] Technical problem solved by the present invention: In order to make up for the deficiencies of the existing technology, the present invention provides a power distribution box for controller installation, aiming to improve the problem in the existing technology that distribution cabinets are generally densely arranged in groups in large factories, which may interfere with the gaps between other equipment or distribution cabinets during installation and replacement, affecting the overall layout and operating efficiency.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by this utility model is:

[0006] An electric power distribution box for installing a controller comprises a box body, an air inlet is provided on the side wall of the box body, a dust screen is provided on the outside of the air inlet, and the dust screen can be quickly removed and fixed to the outer wall of the box body through an elastic snap-fit structure; a cooling fan is provided on the side wall of the box body, and a cooling fan mounting port is provided on the side wall of the box body, and the cooling fan can be quickly removed and fixed in the cooling fan mounting port through a sliding snap-fit structure.

[0007] A further limitation of the above scheme is that the elastic snap-fit structure of the dustproof net is fixed on the outer wall of the box body: it includes a mounting frame fixed on the outer wall of the air inlet, a dustproof net slide groove is provided on the inner side of the mounting frame, and the frame of the dustproof net slides and fits in the dustproof net slide groove; a positioning block mounting groove and an operating rod through-hole are provided on the mounting frame, one end of the operating rod through-hole is connected with the positioning block mounting groove and the other end is connected with the outside, a positioning block is provided in the positioning block mounting groove, the upper part of the positioning block is fixedly connected to the operating rod, and a spring A is sleeved on the operating rod, and the two ends of the spring A are respectively pressed against the upper surface of the positioning block and the upper surface in the positioning block mounting groove, and the operating rod extends to the outside through the operating rod through-hole; a positioning card slot corresponding to the position of the positioning block mounting slot is provided on the frame of the dustproof net.

[0008] As a further limitation to the above solution, the lower surface of the positioning block is an inclined surface.

[0009] To further define the above scheme, the sliding clamping structure of the heat dissipation fan installed in the heat dissipation fan installation port is as follows: a plurality of clamping blocks are evenly distributed around the outer wall of the heat dissipation fan; a circular slide is provided on the inner side of the inner wall of the heat dissipation fan installation port, the inner diameter of the circular slide is larger than the circumferential diameter formed by the outer surfaces of the plurality of clamping blocks on the heat dissipation fan, a pressure ring is adapted in the circular slide, and one side of the pressure ring is connected to the inner wall of the circular slide by springs B evenly distributed around the circumference; the inner wall of the heat dissipation fan installation port is close to the inner side The inner diameter of the outer side is adapted to the diameter gap of the outer wall of the cooling fan, and a plurality of clamping block entry grooves and clamping block slots corresponding to the number of clamping blocks are evenly distributed on the outer side of the inner wall of the cooling fan mounting opening. The clamping block entry groove is a through groove and is convenient for the clamping block to enter the circular slide. The inner side of the clamping block slot is open and the outer side is closed and is used to engage with the clamping block; the clamping block enters the circular slide from the corresponding clamping block entry groove, and the cooling fan rotates so that the clamping block is clamped into the clamping block slot as it rotates.

[0010] As a further limitation of the above solution, a mounting bracket and a PLC controller mounting seat are provided inside the box.

[0011] As a further limitation of the above solution, the box body is provided with a box door.

[0012] The advantages of this utility model compared with the prior art are:

[0013] 1. In this solution, the cooling fan is quickly removable and fixed in the cooling fan installation port through a sliding card structure. When replacing the cooling fan, the fan can be quickly removed by simply pressing and rotating without changing the spacing between the distribution boxes. This reduces the maintenance time of the distribution box, reduces interference with other equipment, and improves work efficiency.

[0014] 2. This solution is equipped with a dustproof net, which can effectively prevent dust and particulate matter from entering the distribution box, thereby reducing the wear of the fan and internal equipment, extending the service life of the equipment, and maintaining good heat dissipation performance. The dustproof net can be quickly removed and fixed to the outer wall of the box through an elastic clip structure. When replacing the dustproof net, you only need to pull the operating lever to replace it, further reducing the maintenance time of the distribution box, simplifying the maintenance operation, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the external structure of the power distribution box in the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the power distribution box in the utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the dustproof net in the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the elastic snap-fit structure of the dustproof net in the present invention;

[0019] Figure 5 It is a schematic diagram of the sliding clamping structure of the heat dissipation fan in the present utility model;

[0020] Figure 6 This is a schematic structural diagram of the heat dissipation fan in the present utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0023] See also Figure 1-6 , describe the embodiments of the present utility model in detail.

[0024] Example: See Figure 1-2 As shown, the power distribution box for controller installation includes a box body 1, an air inlet 3 is provided on the side wall of the box body 1, a dustproof net 4 is provided on the outside of the air inlet 3, and the dustproof net 4 can be quickly disassembled and fixed on the outer wall of the box body 1 through an elastic snap-fit structure; a cooling fan 14 is provided on the side wall of the box body 1, and a cooling fan mounting port 15 is provided on the side wall of the box body 1, and the cooling fan 14 can be quickly disassembled and fixed in the cooling fan mounting port 15 through a sliding snap-fit structure.

[0025] The interior of the box body 1 is provided with a mounting frame 22 and a PLC controller mounting seat 23. The front end of the outer surface of the box body 1 is hingedly provided with a box door 2.

[0026] This embodiment improves the connection between the dust screen and the cooling fan so that both the dust screen and the cooling fan are snap-on fixed structures, which are easy to install and disassemble. This improves the problem in the prior art that distribution cabinets are generally densely arranged in groups in large factories, which may interfere with the gaps between other equipment or distribution cabinets during installation and replacement, affecting the overall layout and operating efficiency.

[0027] In a specific embodiment: see Figure 3-4 As shown, the elastic snap-fit structure of the dustproof net 4 fixed on the outer wall of the box body 1 is as follows: it includes a mounting frame 5 fixed on the outer wall of the air inlet 3, and a dustproof net slide groove 6 is provided on the inner side of the mounting frame 5. The frame 7 of the dustproof net 4 is slidably adapted in the dustproof net slide groove 6; a positioning block mounting groove 8 and an operating rod through-hole 12 are provided on the mounting frame 5, one end of the operating rod through-hole 12 is connected with the positioning block mounting groove 8 and the other end is connected with the outside, a positioning block 9 is provided in the positioning block mounting groove 8, and an operating rod 10 is fixedly connected to the upper part of the positioning block 9, and a spring A11 is sleeved on the operating rod 10, and the two ends of the spring A11 are respectively pressed against the upper surface of the positioning block 9 and the upper surface in the positioning block mounting groove 8, and the operating rod 10 extends to the outside through the operating rod through-hole 12; a positioning card groove 13 corresponding to the position of the positioning block mounting groove 8 is provided on the frame 7 of the dustproof net 4.

[0028] Preferably, the lower surface of the positioning block 9 is an inclined surface, which can ensure that the positioning block slides smoothly into the positioning slot.

[0029] In this embodiment, the dustproof net can effectively prevent dust and particles from entering the distribution box, thereby reducing the wear of the fan and internal equipment, extending the service life of the equipment, and maintaining good heat dissipation performance.

[0030] In this embodiment, the dust screen is quickly removably fixed to the outer wall of the box via an elastic snap-fit structure. During operation, the operating lever 10 is manually pulled to move the positioning block 9 upward to the positioning block mounting slot 8. The dust screen 4 and its frame 7 are then slid into the dust screen slide 6. The positioning slot 13 corresponds to the positioning block mounting slot 8. The operating lever 10 is released, and the operating lever 10 moves downward under the elastic force of the spring A11, causing the positioning block 9 to snap into the positioning slot 13, achieving snap-fit fixation. During removal, the operating lever 10 is pulled to move the positioning block 9 upward to the positioning block mounting slot 8, and the dust screen 4 and its frame 7 can be slid out. This structure allows the dust screen to be replaced by simply pulling the operating lever, reducing maintenance time for the distribution box and simplifying repair operations, saving time and effort.

[0031] In a specific embodiment: see Figure 5-6 As shown, the sliding clamping structure of the cooling fan 14 installed in the cooling fan installation port 15 is as follows: a plurality of clamping blocks 21 are evenly distributed around the outer wall of the cooling fan 14; a circular slide 18 is provided on the inner side of the inner wall of the cooling fan installation port 15, and the inner diameter of the circular slide 18 is larger than the circumferential diameter formed by the outer surfaces of the plurality of clamping blocks 21 on the cooling fan 14. A pressure ring 19 is adapted to be provided in the circular slide 18, and one side of the pressure ring 19 is connected to the circular slide by springs B20 evenly distributed around the circumference. The inner wall of the annular slideway 18 is connected; the inner diameter of the outer side of the inner wall of the cooling fan mounting opening 15 is adapted to the diameter gap of the outer wall of the cooling fan 14, and a plurality of clamping block entry grooves 16 and clamping block slots 17 corresponding to the number of the clamping blocks 21 are evenly distributed on the outer side of the inner wall of the cooling fan mounting opening 15. The inner and outer sides of the clamping block entry grooves 16 are open to form through grooves and facilitate the clamping block 21 to enter the annular slideway 18. The inner side of the clamping block slots 17 is open and the outer side is closed and is used to engage with the clamping block 21.

[0032] In specific implementation, there are 4 clamping blocks 21 evenly distributed around the outer wall of the cooling fan 14, and the clamping block entry slots 16 are set to 4 groups, and the four groups of clamping block entry slots 16 are through slots. There are 4 groups of clamping block slots 17, and the 4 groups of clamping block slots 17 are clamping slots.

[0033] In this embodiment, the cooling fan 14 corresponds to the cooling fan installation opening 15, and the clamping block 21 enters the annular slideway 18 from the corresponding clamping block entry groove 16. Under the pressure of the clamping block 21, the pressure ring 19 elastically moves backward. The cooling fan 14 is rotated so that the clamping block 21 is clamped into the clamping block slot 17 as it rotates. Then, the pressure ring 19 moves forward under the pressure of the spring B20 to press the clamping block 21, thereby fixing the cooling fan 14. When removing the cooling fan 14, the cooling fan 14 is pressed backward to make the clamping block 21 withdraw from the clamping block slot 17 into the annular slideway 18. The cooling fan 14 is rotated so that the clamping block 21 corresponds to the clamping block entry groove 16 and comes out of the clamping block entry groove 16, thereby removing the cooling fan.

[0034] This structure allows the fan to be quickly removed by simple pressing and rotating operations when replacing the cooling fan without changing the spacing between the distribution boxes, thereby reducing the maintenance time of the distribution box and reducing interference with other equipment.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A power distribution box for installing a controller, comprising a box body (1), characterized in that: An air inlet (3) is provided on the side wall of the box body (1), and a dustproof net (4) is provided outside the air inlet (3), and the dustproof net (4) can be quickly disassembled and fixed on the outer wall of the box body (1) through an elastic snap-fit structure; a cooling fan (14) is provided on the side wall of the box body (1), and a cooling fan mounting port (15) is provided on the side wall of the box body (1), and the cooling fan (14) can be quickly disassembled and fixed in the cooling fan mounting port (15) through a sliding snap-fit structure.

2. The power distribution box for controller installation according to claim 1, characterized in that: The elastic snap-fit structure for fixing the dust screen (4) on the outer wall of the box body (1) comprises: a mounting frame (5) fixed on the outer wall of the air inlet (3); a dust screen sliding groove (6) is provided on the inner side of the mounting frame (5); the frame (7) of the dust screen (4) is slidably fitted in the dust screen sliding groove (6); a positioning block mounting groove (8) and an operating rod through-hole (12) are provided on the mounting frame (5); one end of the operating rod through-hole (12) is connected to the positioning block mounting groove (8) and the other end is connected to the outside, A positioning block (9) is provided in the positioning block mounting groove (8), an operating rod (10) is fixedly connected to the upper part of the positioning block (9), a spring A (11) is sleeved on the operating rod (10), two ends of the spring A (11) are respectively pressed against the upper surface of the positioning block (9) and the upper surface in the positioning block mounting groove (8), and the operating rod (10) extends to the outside through the operating rod through-hole (12); a positioning slot (13) corresponding to the position of the positioning block mounting groove (8) is provided on the frame (7) of the dustproof net (4).

3. The power distribution box for controller installation according to claim 2, characterized in that: The lower surface of the positioning block (9) is an inclined surface.

4. The power distribution box for controller installation according to claim 1, characterized in that: The sliding clamping structure of the cooling fan (14) installed in the cooling fan installation opening (15) is as follows: a plurality of clamping blocks (21) are evenly distributed around the outer wall of the cooling fan (14); a circular slideway (18) is provided on the inner side of the inner wall of the cooling fan installation opening (15); the inner diameter of the circular slideway (18) is larger than the circumferential diameter formed by the outer surfaces of the plurality of clamping blocks (21) on the cooling fan (14); a pressure ring (19) is adapted to be provided in the circular slideway (18); one side of the pressure ring (19) is connected to the inner wall of the circular slideway (18) through a spring B (20) evenly distributed around the circumference; the inner diameter of the outer side of the inner wall of the cooling fan installation opening (15) is larger than the circumferential diameter formed by the outer surfaces of the plurality of clamping blocks (21) on the cooling fan (14); The diameter gap of the outer wall of the heat dissipation fan (14) is adapted, and a plurality of clamping block entry grooves (16) and clamping block slots (17) corresponding to the number of the clamping blocks (21) are evenly distributed on one side of the inner wall of the heat dissipation fan installation opening (15) close to the outer side. The clamping block entry grooves (16) are through grooves and facilitate the clamping block (21) to enter the annular slideway (18). The inner side of the clamping block slots (17) is open and the outer side is closed and is used to engage with the clamping block (21); the clamping block (21) enters the annular slideway (18) from the corresponding clamping block entry groove (16), and the heat dissipation fan (14) rotates so that the clamping block (21) is clamped into the clamping block slot (17) as it rotates.

5. The power distribution box for controller installation according to claim 1, characterized in that: A mounting frame (22) and a PLC controller mounting seat (23) are provided inside the box (1).

6. The power distribution box for controller installation according to claim 1, characterized in that: The box body (1) is provided with a box door (2).

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