Controller power distribution box convenient to quickly replace

Abstract

The invention provides a controller power distribution box convenient to replace quickly, 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 power distribution cabinet, 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, and the problem that in the prior art, multiple groups of power distribution cabinets are generally densely arranged together in a large-scale factory, and during mounting and replacement, the power distribution cabinet is inconvenient to mount and dismount is solved. 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 invention belongs to the technical field of distribution boxes, and in particular relates to a controller power distribution box which is convenient for quick replacement. Background Art

[0002] The power distribution box provides stable power supply and power 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 with 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. The existing heat dissipation structure usually fixes 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 densely arranged in groups. When installing and replacing, 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. Summary of the invention

[0004] Technical problem solved by the present invention: In order to make up for the deficiencies of the prior art, the present invention provides a controller power distribution box that is easy to quickly replace, aiming to improve 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.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A controller power distribution box that is easy to quickly replace includes a box body, an air inlet is provided on the side wall of the box body, a dust screen is provided outside the air inlet, the dust screen can be quickly removed and fixed to the outer wall of the box body through an elastic clip structure, and the dust screen can be quickly removed by pressing; a cooling fan is provided on the side wall of the box body, a cooling fan mounting port is provided on the side wall of the box body, the cooling fan can be quickly removed and fixed in the cooling fan mounting port through a sliding clip structure, and the cooling fan can be quickly removed by pressing and rotating.

[0007] To further define the above scheme, the elastic snap-in structure of the dustproof net fixed on the outer wall of the box body is as follows: 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 is slidably adapted 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, an operating rod is fixedly connected to the upper part of the positioning block, a spring A is sleeved on the operating rod, 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 groove corresponding to the position of the positioning block mounting groove is provided on the frame of the dustproof net.

[0008] As a further limitation of 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 ring slide is provided on the inner side of the inner wall of the heat dissipation fan installation port, the inner diameter of the circular ring 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 ring slide, and one side of the pressure ring is connected to the inner wall of the circular ring 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 one side of the outside 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 side of the inner wall of the cooling fan installation opening close to the outside, and the clamping block entry grooves are through grooves and are convenient for the clamping block to enter the circular slideway, and the inside of the clamping block slot is open and the outside is closed and is used to engage with the clamping block; the clamping block enters the circular slideway 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 frame 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 the present invention compared with the prior art are:

[0013] 1. In this solution, the cooling fan can be quickly disassembled and fixed in the cooling fan installation port through a sliding clamping structure, so that when replacing the cooling fan, the fan can be quickly taken out by simple pressing and rotating operations without changing the spacing of the distribution box, thereby reducing the maintenance time of the distribution box, reducing interference with other equipment, and improving work efficiency;

[0014] 2. This solution can effectively block dust and particulate matter from entering the distribution box by providing a dustproof net, 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 disassembled 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, and the maintenance operation is simple, 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 present invention;

[0016] Figure 2 It is a schematic diagram of the internal structure of the power distribution box in the present invention;

[0017] Figure 3 Schematic diagram of the installation structure of the dustproof net in the present invention;

[0018] Figure 4 It is a schematic diagram of the internal structure of the elastic clamping 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 invention;

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

[0021] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

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

[0023] See also Figure 1-6 , details of the embodiments of the present invention.

[0024] Example: See Figure 1-2As shown, a controller power distribution box which is easy to quickly replace includes a box body 1, an air inlet 3 is provided on the side wall of the box body 1, a dust screen 4 is provided outside the air inlet 3, and the dust screen 4 can be quickly disassembled and fixed to 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 box body 1 is provided with a mounting frame 22 and a PLC controller mounting seat 23. The outer surface of the box body 1 is hingedly provided with a box door 2 at the front end.

[0026] This embodiment improves the connection between the dustproof net and the cooling fan so that both the dustproof net and the cooling fan are snap-on fixed structures for easy installation and removal, thereby improving 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 implementation: 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: it includes a mounting frame 5 fixed on the outer side 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, an operating rod 10 is fixedly connected to the upper part of the positioning block 9, 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, by providing a dustproof net, dust and particulate matter can be effectively blocked 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 can be quickly disassembled and fixed on the outer wall of the box body through an elastic snap-fit ​​structure. During operation, the operating rod 10 is manually pulled up to move the positioning block 9 up to the positioning block mounting groove 8, and then the dust screen 4 and its frame 7 are slid into the dust screen slide groove 6. The positioning slot 13 corresponds to the positioning block mounting groove 8 up and down. The operating rod 10 is released, and the operating rod 10 moves down under the elastic force of the spring A11, so that the positioning block 9 is snapped into the positioning slot 13 to achieve snap-fit ​​fixation. During disassembly, the operating rod 10 is pulled up to move the positioning block 9 up to the positioning block mounting groove 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 rod, reducing the maintenance time of the distribution box, simplifying the maintenance operation, and saving time and effort.

[0031] In a specific implementation: see Figure 5-6 As shown, 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 in the circular slideway 18, and one side of the pressure ring 19 is connected to the circular slideway by springs B20 evenly distributed around the circumference. The inner wall of the annular slideway 18 is connected; the inner diameter of one side of the inner wall of the cooling fan mounting opening 15 close to the outside is adapted to the diameter gap of the outer wall of the cooling fan 14; a plurality of card-connecting block entry grooves 16 and card-connecting block slots 17 corresponding to the number of the card-connecting blocks 21 are evenly distributed on one side of the inner wall of the cooling fan mounting opening 15 close to the outside; the card-connecting block entry grooves 16 are open on both the inside and outside to form through grooves and facilitate the card-connecting block 21 to enter the annular slideway 18; the card-connecting block slots 17 are open on the inside and closed on the outside and are used to engage with the card-connecting block 21.

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

[0033] In the present 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, and 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 the cooling fan 14 is disassembled, the cooling fan 14 is pressed backward so that the clamping block 21 withdraws from the clamping block slot 17 to the annular slideway 18, and 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 disassembling the cooling fan.

[0034] This structure enables the fan to be quickly taken out through 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 invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 modes that can be understood by those skilled in the art.

Claims

1. A controller power distribution box that is easy to quickly replace, 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 dust screen (4) is provided outside the air inlet (3). The dust screen (4) can be quickly removed and fixed to the outer wall of the box body (1) through an elastic snap-fit ​​structure, and the dust screen (4) can be quickly removed by pressing; a cooling fan (14) is provided on the side wall of the box body (1), and a cooling fan installation port (15) is provided on the side wall of the box body (1). The cooling fan (14) can be quickly removed and fixed in the cooling fan installation port (15) through a sliding snap-fit ​​structure, and the cooling fan (14) can be quickly removed by pressing and rotating.

2. A controller power distribution box that is easy to quickly replace 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); the operating rod (10) passes through the operating rod through hole (12) and extends to the outside; 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).

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

4. A controller power distribution box that is easy to quickly replace according to claim 1, characterized in that: The sliding clamping structure of the heat dissipation fan (14) installed in the heat dissipation fan installation opening (15) is as follows: a plurality of clamping blocks (21) are evenly distributed around the outer wall of the heat dissipation fan (14); a circular slideway (18) is provided on the inner side of the inner wall of the heat dissipation 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 heat dissipation fan (14); a pressure ring (19) is adapted to be arranged in the circular slideway (18); one side of the pressure ring (19) is connected to the inner wall of the circular slideway (18) through springs B (20) evenly distributed around the circumference; the inner diameter of the outer side of the inner wall of the heat dissipation fan installation opening (15) is larger than the inner diameter of the circumference formed by the outer surfaces of the plurality of clamping blocks (21) on the heat dissipation fan (14); The outer wall diameter gap 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 the outer side of the inner wall of the heat dissipation fan installation opening (15); the clamping block entry grooves (16) are through grooves and are convenient for the clamping block (21) to enter the circular slideway (18); the inner side of the clamping block slots (17) are open and the outer side is closed and is used to engage with the clamping block (21); the clamping block (21) enters the circular 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 controller power distribution box that is easy to quickly replace according to claim 1 is characterized in that: A mounting frame (22) and a PLC controller mounting seat (23) are provided inside the box (1).

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

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