PLC heat dissipation device

Abstract

The utility model discloses a heat dissipation seat of a PLC heat dissipation device, the heat dissipation seat is installed on a PLC controller, a heat dissipation fan (11) is fixedly installed in the heat dissipation seat, the upper surface of the heat dissipation seat (2) is provided with a plurality of positioning grooves, and the outer side of the heat dissipation seat is provided with a fixed seat (5) corresponding to the positioning grooves; the filter screen (3) is arranged on the upper end face of the heat dissipation base and located above the heat dissipation fan (11), a positioning block (4) is arranged on the outline of the filter screen (3), the positioning block (4) corresponds to the positioning groove and can be clamped and matched with the fixing base (5) after being placed into the positioning groove, and the positioning block (4) extends out relative to the fixing base (5). According to the utility model, the filter screen is clamped and matched with the heat dissipation seat, so that the filter screen can be mounted and dismounted, the filter screen is convenient to clean, and the heat dissipation efficiency of equipment is prevented from being influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation devices, in particular to a PLC heat dissipation device. Background Art

[0002] PLC programming is a digital computing operating system currently used in the industrial field, enabling it to achieve operations such as sequential control, timing and counting of equipment. The current PLC is a general-purpose industrial control device based on a microprocessor.

[0003] In order to quickly dissipate the heat of internal components, existing electrical automation PLCs usually have fan cooling devices installed inside. However, the filters on the existing PLC cooling devices are mostly fixed and not easy to disassemble. Since the fan will suck in the outside air when it is running, and the dust in the outside air will be filtered on the filter, it is inconvenient to clean or replace the filter if it is not easy to disassemble the filter. Dust covering the filter will affect the heat dissipation efficiency of the equipment. In order to solve the above problems, a PLC cooling device is proposed. Utility Model Content

[0004] The utility model aims to provide a PLC heat dissipation device to solve the problem that the filters on the existing PLC heat dissipation devices are mostly fixed and inconvenient to disassemble. Since the fan will suck in the outside air when it is running, and the dust in the outside air will be filtered on the filter, it is inconvenient to clean or replace the filter if it is not convenient to disassemble the filter, and the dust covering the filter will affect the heat dissipation efficiency of the equipment.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] A PLC heat dissipation device, comprising:

[0007] A heat sink is installed on the PLC controller and has a heat sink fan fixedly installed therein. A plurality of positioning grooves are provided on the upper surface of the heat sink, and a fixing seat is provided on the outer side of the heat sink corresponding to the positioning grooves; and

[0008] The filter is arranged on the upper end surface of the heat sink and above the heat sink fan. A positioning block is arranged on the contour of the filter. The positioning block corresponds to the positioning groove and can be fitted with the fixing seat after being inserted into the positioning groove. The positioning block extends relative to the fixing seat.

[0009] Preferably, a moving block is slidably installed in the fixing seat, and a clamping block is fixed to one end of the moving block corresponding to the positioning block, and the clamping block can be moved and clamped into a clamping slot provided on the positioning block by sliding the moving block.

[0010] Preferably, a turning handle and a screw are also installed in the fixed seat, the turning handle is rotatably installed on the upper surface of the fixed seat, and one end of the turning handle is connected to the screw; the screw is rotatably installed in the fixed seat and is threadedly connected to the moving block; the screw can be driven to rotate by rotating the turning handle, so as to drive the moving block to move.

[0011] Preferably, a transmission mechanism is provided between the turning handle and the screw rod, and the transmission mechanism comprises a main gear and a sub gear meshing with each other, the main gear is mounted on the turning handle, and the sub gear is mounted on the screw rod.

[0012] Preferably, the main gear and the auxiliary gear are both bevel gears.

[0013] Preferably, a slot is provided on the bottom surface of the positioning groove, a spring is installed in the slot, a spring plate is fixedly connected to the upper end of the spring, an insert block is fixed on the positioning block, and the insert block can be slidably inserted into the slot to elastically compress the spring.

[0014] Preferably, a limiting groove is further provided on the fixing seat, a limiting block is slidably connected in the limiting groove, and the limiting block is fixedly connected to the moving block.

[0015] Preferably, a mounting cavity is provided in the fixing seat, and an outlet for the block to move and extend is provided on one side of the mounting cavity corresponding to the positioning block; the limiting grooves are provided on the corresponding two side walls in the mounting cavity.

[0016] Preferably, a noise reduction groove is provided on the upper surface of the controller corresponding to the heat dissipation fan, a plurality of sound-absorbing cottons are bonded to both side surfaces of the inner wall of the noise reduction groove, and a plurality of heat dissipation holes connected to the inside of the controller are provided at the bottom of the noise reduction groove.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model realizes quick installation by setting a filter screen and a heat sink to fit together; by turning the handle, the handle makes the screw rotate in the opposite direction through the meshing of the gears, and the moving block drives the block to move to the side away from the slot. When the block is pulled out of the slot, the block no longer restricts the positioning block, and the filter screen can be disassembled, which is convenient for cleaning the filter screen and avoids affecting the heat dissipation efficiency of the equipment;

[0019] 2. The utility model is provided with a spring and a spring plate. When the card block is pulled out of the card slot, the spring is reset, and the card block is ejected from the slot through the spring plate, so that the filter can be quickly disassembled and the operation is simple;

[0020] 3. The utility model can absorb the noise generated by the rapid rotation of the cooling fan by arranging the sound-absorbing cotton, thereby achieving the effect of noise reduction.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 This is a first cross-sectional structural schematic diagram of the utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0026] Figure 4 It is a second cross-sectional structural schematic diagram of the utility model;

[0027] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0028] In the attached drawings, the list of components represented by each reference number is as follows: 1. Controller; 2. Heat sink; 3. Filter; 4. Positioning block; 5. Fixed seat; 6. Turn handle; 7. Display screen; 8. Button; 9. Noise reduction groove; 10. Sound-absorbing cotton; 11. Cooling fan; 12. Slot; 13. Spring; 14. Spring plate; 15. Insert block; 16. Slot; 17. Screw; 18. Moving block; 19. Block; 20. Limit block; 21. Main gear; 22. Sub gear; 23. Limit groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0031] like Figure 1 As shown, the utility model discloses a PLC heat dissipation device, including a heat sink 2 and a filter 3. The heat sink 2 is installed on the PLC controller 1, and a heat dissipation fan 11 is fixedly installed inside. A plurality of positioning grooves are provided on the upper surface of the heat sink 2, and a fixing seat 5 is provided on the outer side of the heat sink 2 corresponding to the positioning grooves. The filter 3 is arranged on the upper end surface of the heat sink 2 and is located above the heat dissipation fan 11. A positioning block 4 is provided on the contour of the filter 3. The positioning block 4 corresponds to the positioning groove and can be snap-fitted with the fixing seat 5 after being inserted into the positioning groove. The positioning block 4 extends relative to the fixing seat 5. Here, a quick snap-fit ​​operation can be achieved by the positioning block 4 and the positioning groove. Here, the positioning block 4 is arranged to extend relative to the fixing seat 5, which can facilitate the disassembly and installation of the filter 3, so that the filter 3 can be cleaned to avoid affecting the heat dissipation efficiency of the equipment.

[0032] like Figure 2-5 As shown, in order to realize the card installation between the positioning block 4 and the positioning groove, specifically: a moving block 18 is slidably installed in the fixed seat 5, and a card block 19 is fixed on one end of the moving block 18 corresponding to the positioning block 4. By sliding the moving block 18, the card block 19 can be moved and carded into the card groove 16 opened on the positioning block 4.

[0033] The fixing seat 5 is provided with a mounting cavity corresponding to the moving block 18, and the mounting cavity is provided with an outlet for the block 19 to move out on one side corresponding to the positioning block 4. The fixing seat 5 is also provided with a turning handle 6 and a screw 17, one end of the turning handle 6 is rotatably mounted on the upper surface of the fixing seat 5, and the other end of the turning handle 6 is connected to the screw 17. The screw 17 can be rotatably mounted in the mounting cavity in the fixing seat 5, and is threadedly connected with the moving block 18; by rotating the turning handle 6, the screw 17 can be driven to rotate, so as to drive the moving block 18 to move, that is, the moving block 19 can be clamped into or out of the clamping slot 16.

[0034] In order to better realize the convenient operation of the turning handle 6, a transmission mechanism is provided between the turning handle 6 and the screw 17, and the transmission mechanism includes a main gear 21 and a sub-gear 22 that mesh with each other, the main gear 21 is installed on the turning handle 6, and the sub-gear 22 is installed on the screw 17. Among them, the main gear 21 and the sub-gear 22 are both bevel gears. In this way, the turning handle 6 can be arranged upward relative to the vertical fixing seat 5, which is convenient for operation.

[0035] Specifically, a slot 12 is provided on the bottom surface of the positioning groove, a spring 13 is installed in the slot 12, an elastic plate 14 is fixedly connected to the upper end of the spring 13, and an insert block 15 is fixed on the positioning block 4, and the insert block 15 can be correspondingly slidably inserted into the slot 12 to elastically compress the spring 13. When the card block 19 is pulled out of the card slot 16, the spring 13 is reset, and the insert block 15 is ejected from the slot 12 through the elastic plate 14, so that the filter 3 can be quickly disassembled, and the operation is simple.

[0036] Here, the fixing seat 5 is further provided with a limiting groove 23, in which a limiting block 20 is slidably connected, and the limiting block 20 is fixedly connected to the moving block 18. The limiting groove 23 is provided on the corresponding two side walls in the installation cavity.

[0037] A noise reduction groove 9 is provided on the upper surface of the controller 1 corresponding to the heat dissipation fan 11, and a plurality of sound-absorbing cottons 10 are bonded to both sides of the inner wall of the noise reduction groove 9, and a plurality of heat dissipation holes connected to the inside of the controller 1 are provided at the bottom of the noise reduction groove 9. By providing the sound-absorbing cotton 10, the noise generated by the rapid rotation of the heat dissipation fan 11 can be absorbed, thereby achieving a noise reduction effect.

[0038] Example:

[0039] like Figure 1-Figure 5 As shown, a method of using a PLC heat dissipation device of the utility model is as follows: when using the utility model, first start the heat dissipation fan 11 to dissipate heat for the controller 1, the sound-absorbing cotton 10 can absorb the noise generated by the rapid rotation of the heat dissipation fan 11 to reduce noise, the filter 3 filters external dust, and the handle 6 is rotated in the opposite direction. The handle 6 makes the screw 17 rotate in the opposite direction through the engagement between the gears, and the moving block 18 drives the block 19 to move to the side away from the slot 16. When the block 19 is pulled out of the slot 16, the block 19 no longer restricts the positioning block 4, the spring 13 is reset, and the plug 15 is ejected from the slot 12 by the spring plate 14, so that the filter 3 can be quickly disassembled, and then the filter 3 can be cleaned.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A PLC heat dissipation device, characterized in that: A heat sink is installed on the PLC controller and has a heat sink fan (11) fixedly installed therein; a plurality of positioning grooves are provided on the upper surface of the heat sink (2), and a fixing seat (5) is provided on the outer side of the heat sink corresponding to the positioning grooves; and The filter screen (3) is arranged on the upper end surface of the heat sink and is located above the heat sink fan (11). A positioning block (4) is arranged on the contour of the filter screen (3). The positioning block (4) corresponds to the positioning groove and can be snap-fitted with the fixing seat (5) after being inserted into the positioning groove. The positioning block (4) protrudes relative to the fixing seat (5).

2. A PLC heat dissipation device according to claim 1, characterized in that: A moving block (18) is slidably mounted in the fixed seat (5); a clamping block (19) is fixed to one end of the moving block (18) corresponding to the positioning block (4); and the clamping block (19) can be moved and clamped into a clamping slot (16) provided on the positioning block (4) by sliding the moving block (18).

3. A PLC heat dissipation device according to claim 2, characterized in that: A turning handle (6) and a screw rod (17) are also installed in the fixed seat (5); the turning handle (6) is rotatably installed on the upper surface of the fixed seat (5), and one end of the turning handle (6) is connected to the screw rod (17); the screw rod (17) is rotatably installed in the fixed seat (5) and is threadedly connected to the moving block (18); the turning handle (6) can drive the screw rod (17) to rotate, so as to drive the moving block (18) to move.

4. A PLC heat dissipation device according to claim 3, characterized in that: A transmission mechanism is provided between the turning handle (6) and the screw rod (17), and the transmission mechanism comprises a main gear (21) and a sub gear (22) meshing with each other, wherein the main gear (21) is mounted on the turning handle (6), and the sub gear (22) is mounted on the screw rod (17).

5. A PLC heat dissipation device according to claim 4, characterized in that: The main gear (21) and the secondary gear (22) are both bevel gears.

6. A PLC heat dissipation device according to claim 2, characterized in that: A slot (12) is provided on the bottom surface of the positioning groove, a spring (13) is installed in the slot (12), an upper end of the spring (13) is fixedly connected to a spring plate (14), an insert block (15) is fixed on the positioning block (4), and the insert block (15) can be correspondingly slidably inserted into the slot (12) so that the spring (13) is elastically compressed.

7. A PLC heat dissipation device according to claim 3, characterized in that: The fixed seat (5) is also provided with a limiting groove (23), a limiting block (20) is slidably connected in the limiting groove (23), and the limiting block (20) is fixedly connected to the moving block (18).

8. A PLC heat dissipation device according to claim 7, characterized in that: The fixing seat (5) is provided with a mounting cavity, and a side of the mounting cavity corresponding to the positioning block (4) is provided with an outlet for the clamping block (19) to move out; the limiting groove (23) is provided on the corresponding two side walls of the mounting cavity.

9. A PLC heat dissipation device according to claim 1, characterized in that: A noise reduction groove (9) is provided on the upper surface of the controller (1) corresponding to the heat dissipation fan (11), a plurality of sound-absorbing cottons (10) are bonded to both sides of the inner wall of the noise reduction groove (9), and a plurality of heat dissipation holes connected to the inside of the controller are provided at the bottom of the noise reduction groove (9).

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