CN219106794U

CN219106794U - PLC power supply protection device

Info

Publication number: CN219106794U
Application number: CN202320017116.0U
Authority: CN
Inventors: 陈新龙; 陈佳春
Original assignee: Jiangsu Jiezhu Intelligent Technology Co ltd
Current assignee: Jiangsu Jiezhu Intelligent Technology Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-05-30
Anticipated expiration: 2033-01-04

Abstract

The utility model relates to a PLC power supply protection device, including the protection cabinet, the mounting groove has been seted up to the position that the protection cabinet lateral wall is close to the bottom, be equipped with the bottom plate on the position that the protection cabinet inner wall is close to the mounting groove, a plurality of fresh air inlets have been seted up on the bottom plate, be equipped with the dehumidification box of being connected with the mounting groove slip in the mounting groove, install dehumidification subassembly in the dehumidification box, dehumidification subassembly includes fan and dehumidification layer, dehumidification box bottom income wind gap, a plurality of air-out holes have been seted up to the lateral wall of protection cabinet both sides, be equipped with the temperature and humidity transducer who is connected with the fan electricity in the protection cabinet, the dehumidification layer adopts active carbon, the drier material such as to make, when temperature and humidity transducer monitored temperature or humidity in the protection cabinet exceed standard, the fan starts and bloies to the bottom plate, the wind that blows to the bottom plate is through multilayer dehumidification layer moisture absorption and dry, wind after the drying gets into in the protection cabinet through the fresh air inlet on the bottom plate, and discharge through the air vent carries out air cycle, the probability that external moist air damages the PLC power supply has been reduced, the life of PLC power supply has been prolonged.

Description

PLC power supply protection device

Technical Field

The utility model relates to the technical field of PLC power supplies, in particular to a power supply protection device for a PLC power supply.

Background

The PLC is a digital operation electronic system specially designed for application in industrial environment. The programmable memory is used to store the instructions for logic operation, sequence control, timing, counting and arithmetic operation, and the PLC power supply is used to provide working power supply for the integrated circuits of the modules of the PLC.

The utility model discloses a PLC power supply protection device in chinese patent of publication No. CN217361316U, it includes the protection cabinet, the transformer, heat dissipation mechanism, elevating system and pushing mechanism, the transformer is installed on the guide rail that is equipped with in the inside upper left side of protection cabinet, the transformer both ends are connected with external power source and PLC power electricity respectively, evenly offered a plurality of louvre on the right-hand member lateral wall of protection cabinet, heat dissipation mechanism passes through elevating system liftable installation on the right-hand member inner wall of protection cabinet, heat dissipation mechanism's lower extreme is connected with the actuating lever transmission that pushing mechanism was equipped with, be equipped with the dust removal mechanism that is used for getting rid of the floating dust on the right-hand member outer wall of protection cabinet, dust removal mechanism is connected with pushing mechanism's actuating lever transmission.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: when humidity in the air is great, the rotation of flabellum can make outside moisture get into in the protection cabinet, and the contact of PLC power and outside moist air large tracts of land easily leads to electrical components short circuit.

Disclosure of Invention

In order to solve the problems, the utility model provides a PLC power supply protection device.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a PLC power supply protection device, includes the protection cabinet, the mounting groove has been seted up to the position that the protection cabinet lateral wall is close to the bottom, be equipped with the bottom plate on the position that the protection cabinet inner wall is close to the mounting groove, a plurality of fresh air inlets have been seted up on the bottom plate, be provided with the dehumidification box of being connected with the mounting groove slides in the mounting groove, install dehumidification subassembly in the dehumidification box, dehumidification subassembly is including setting up the fan of diapire in the dehumidification box and setting up a plurality of dehumidification layers between fan and bottom plate, the income wind gap of supplying the fan air inlet has been seted up to dehumidification box bottom, a plurality of apopores have been seted up to the lateral wall of protection cabinet both sides, be provided with the temperature and humidity sensor who is connected with the fan electricity in the protection cabinet.

Through adopting above-mentioned technical scheme, the dehumidification layer adopts materials such as active carbon, drier to make, and when temperature and humidity sensor monitored temperature or humidity in the protection cabinet exceeded standard, the fan was started and was bloied to the bottom plate, and the wind that blows to the bottom plate was through multilayer dehumidification layer moisture absorption drying, and the wind after the drying gets into in the protection cabinet through the fresh air inlet on the bottom plate to discharge through the apopore and carry out air cycle, reduced the probability that external moist air damaged the PLC power, prolonged the life of PLC power.

Further, a baffle is fixed on the side wall of the dehumidification box, and a handle is fixed on the side wall of the baffle, which is far away from one side of the dehumidification box.

Through adopting above-mentioned technical scheme, when needs maintain the change to the dehumidification layer, the staff only need through the baffle of handle pulling, take out the dehumidification box from the mounting groove, be convenient for maintain the change to the dehumidification layer in the dehumidification box.

Further, install the spacing subassembly that is used for carrying out spacingly to the dehumidification box on the protection cabinet, spacing subassembly includes fixed block, the montant that runs through setting up on the fixed block and slide and be connected, the pulling piece fixed with montant upper end and the spacing post fixed with the montant lower extreme with the dehumidification cabinet lateral wall is fixed, spacing post one side and the lateral wall butt of baffle one side.

Through adopting above-mentioned technical scheme, when needs maintain the change to the dehumidification layer, the staff only need upwards lift up the pulling piece for with the fixed montant of pulling piece and with the fixed spacing post upward movement of montant, and make spacing post break away from the butt state with the baffle, thereby pull out baffle and dehumidification box through the handle, the staff of being convenient for regularly maintain the change to the dehumidification layer, when need not to maintain the change dehumidification layer, spacing post and baffle butt have reduced the probability that the dehumidification box rocked factor automatic roll-off because of the protection cabinet.

Further, a spring is sleeved on the vertical rod, the upper end of the spring is fixed with the lower surface of the pulling block, and the lower end of the spring is fixed with the upper surface of the fixing block.

Through adopting above-mentioned technical scheme, the spring makes the pulling piece keep fixed position to make spacing post keep with the state of baffle butt, further reduced the probability of the automatic roll-off of dehumidification box.

Further, an external thread is arranged on the outer wall of the vertical rod close to the limiting column, and an internal thread for external thread connection is arranged on the fixed block.

Through adopting above-mentioned technical scheme, when the dehumidification layer is need be maintained and change, the staff upwards lifts the pulling piece and rotatory montant, makes montant and fixed block threaded connection, drives spacing post and keeps the state of mentioning, and the staff of being convenient for pulls out the dehumidification box and maintains the change to the dehumidification layer.

Further, the orthographic projection area of the baffle is larger than the area of the notch of the mounting groove.

Through adopting above-mentioned technical scheme to this condition that has avoided the dehumidification box to roll off from the notch of mounting groove opposite side is favorable to dehumidifying component's normal use.

Further, a step groove is formed in the intersection between the inner wall of the air inlet and the bottom of the dehumidifying box, a filter screen frame is installed in the step groove, and a filter screen is fixed on the inner wall of the filter screen frame.

By adopting the technical scheme, the filter screen provides a filter effect for the air inlet, and the probability that dust and sundries are sucked into the fan after the fan is started is reduced.

Further, an upper magnetic sheet is embedded in the inner top wall of the stepped groove, and a lower magnetic sheet which is magnetically attracted with the upper magnetic sheet is embedded in the upper surface of the filter screen frame.

Through adopting above-mentioned technical scheme, go up the magnetic sheet and inhale mutually with lower magnetic sheet magnetism, fix the filter screen frame in the ladder inslot, the staff of being convenient for pulls out after the dehumidification box takes off the filter screen frame and clears up the filter screen.

In summary, the utility model has the following beneficial effects:

1. in the application, the dehumidifying layer is made of active carbon, drying agent and other materials, when the temperature and humidity sensor monitors that the temperature or the humidity in the protective cabinet exceeds the standard, the fan is started and blows air to the bottom plate, the air blown to the bottom plate is subjected to moisture absorption and drying through the multi-layer dehumidifying layer, the dried air enters the protective cabinet through the air inlet hole on the bottom plate and is discharged through the air outlet hole for air circulation, the probability that the external moist air damages the PLC power supply is reduced, and the service life of the PLC power supply is prolonged;

2. in the application, when the dehumidification layer is required to be maintained and replaced, a worker only needs to pull the baffle through the handle to take out the dehumidification box from the mounting groove, so that the dehumidification layer in the dehumidification box is convenient to maintain and replace;

3. in this application, when needs maintain the change to the dehumidification layer, the staff only need upwards lift the pulling piece for with the montant that the pulling piece is fixed and with the fixed spacing post upward movement of montant, and make spacing post break away from the butt state with the baffle, thereby pull out baffle and dehumidification box through the handle, the staff of being convenient for regularly maintain the change to the dehumidification layer, when need not to maintain the change dehumidification layer, spacing post and baffle butt have reduced the probability that the dehumidification box rocked factor automatic roll-off because of the protection cabinet.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;

fig. 3 is an enlarged schematic view at a in fig. 2.

In the figure: 1. a protection cabinet; 11. a mounting groove; 12. an air outlet hole; 2. a bottom plate; 21. an air inlet hole; 3. a dehumidifying box; 31. an air inlet; 311. a stepped groove; 4. a dehumidifying component; 41. a fan; 42. a dehumidifying layer; 5. a temperature and humidity sensor; 6. a baffle; 61. a handle; 7. a limit component; 71. a fixed block; 711. an internal thread; 72. a vertical rod; 721. an external thread; 73. pulling the block; 74. a limit column; 8. a spring; 9. a screen frame; 91. a filter screen; 92. a lower magnetic sheet; 10. and (5) applying a magnetic sheet.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is apparent that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the scope of protection of the present application.

As shown in fig. 1-3, the embodiment of the application discloses a PLC power supply protection device, which comprises a protection cabinet 1, a bottom plate 2, a dehumidification box 3, a dehumidification assembly 4, a temperature and humidity sensor 5, a baffle 6 and a limit assembly 7.

The protection cabinet 1 is a cuboid cabinet body structure, the position of the side wall of the protection cabinet 1 close to the bottom is provided with a mounting groove 11, and the side walls of the two sides of the protection cabinet 1 are provided with a plurality of air outlet holes 12. The bottom plate 2 is of a rectangular plate-shaped structure, the bottom plate 2 is arranged at the position, close to the mounting groove 11, of the inner wall of the protection cabinet 1, and a plurality of air inlet holes 21 are formed in the bottom plate 2. The dehumidification box 3 is a cuboid box-packed structure with an opening at the top, the dehumidification box 3 is arranged in the mounting groove 11 and is connected with the mounting groove 11 in a sliding manner, and the air inlet 31 is formed in the bottom of the dehumidification box 3.

The dehumidifying assembly 4 is installed in the dehumidifying box 3, and the dehumidifying assembly 4 includes a fan 41 and a dehumidifying layer 42. The fan 41 is provided on the inner bottom wall of the dehumidification box 3, and the wind direction of the fan 41 is set toward the bottom plate 2. The dehumidifying layer 42 is a dehumidifying layer 42 made of activated carbon, a desiccant, or the like, the dehumidifying layer 42 is disposed between the fan 41 and the base plate 2, and a plurality of dehumidifying layers 42 are disposed. The temperature and humidity sensor 5 is disposed in the protection cabinet 1, and the temperature and humidity sensor 5 is electrically connected to the fan 41. The baffle 6 is rectangular plate-shaped structure, the baffle 6 is fixed on the side wall of the dehumidification box 3, the side wall of one side of the baffle 6 far away from the dehumidification box 3 is fixed with a handle 61, and the orthographic projection area of the baffle 6 is larger than the area of the notch of the installation groove 11.

The limiting assembly 7 is installed on the protection cabinet 1 and used for limiting the dehumidifying box 3, and the limiting assembly 7 comprises a fixed block 71, a vertical rod 72, a pulling block 73 and a limiting column 74. The fixed block 71 is of a cuboid block structure, and the fixed block 71 is fixed on the side wall of the dehumidification cabinet, which is close to one side of the baffle 6. The vertical rod 72 is a round rod-shaped structure which is vertically arranged, and the vertical rod 72 is arranged on the fixed block 71 in a penetrating way and connected in a sliding way. The pulling block 73 is of a round block structure, the pulling block 73 is fixed at the upper end of the vertical rod 72, and the axis of the pulling block 73 coincides with the axis of the vertical rod 72. The spacing post 74 is the cylindric structure of vertical setting, and spacing post 74 is fixed at montant 72 lower extreme, and spacing post 74 one side and the lateral wall butt of baffle 6 one side.

The dehumidification layer 42 is made of active carbon, drying agent and other materials, when the temperature and humidity sensor 5 monitors that the temperature or humidity in the protection cabinet 1 exceeds the standard, the fan 41 is started and blows air to the bottom plate 2, the air blown to the bottom plate 2 is subjected to moisture absorption and drying through the multi-layer dehumidification layer 42, and the dried air enters the protection cabinet 1 through the air inlet hole 21 on the bottom plate 2 and is discharged through the air outlet hole 12 for air circulation, so that the probability of damaging the PLC power supply by outside moist air is reduced, and the service life of the PLC power supply is prolonged. When the dehumidification layer 42 needs to be maintained and replaced, a worker only needs to lift the pulling block 73 upwards, so that the vertical rod 72 fixed with the pulling block 73 and the limit column 74 fixed with the vertical rod 72 move upwards, and the limit column 74 is separated from the abutting state with the baffle 6, so that the baffle 6 and the dehumidification box 3 are pulled out through the handle 61, the dehumidification layer 42 is convenient to maintain and replace regularly, when the dehumidification layer 42 does not need to be maintained and replaced, the limit column 74 abuts with the baffle 6, and the probability that the dehumidification box 3 automatically slides out due to factors such as shaking of the protection cabinet 1 is reduced.

In order to further reduce the probability of the automatic sliding out of the dehumidifying box 3, the vertical rod 72 is sleeved with a spring 8, the upper end of the spring 8 is fixed with the lower surface of the pulling block 73, the lower end of the spring 8 is fixed with the upper surface of the fixing block 71, and the spring 8 enables the pulling block 73 to keep a fixed position, so that the limiting column 74 is kept in a state of being abutted against the baffle 6, and the probability of the automatic sliding out of the dehumidifying box 3 is further reduced.

In order to facilitate the staff to pull out the dehumidifying box 3, an external thread 721 is arranged on the outer wall of the vertical rod 72 near the limit post 74, an internal thread 711 for the external thread 721 to be in threaded connection is arranged on the fixed block 71, when the dehumidifying layer 42 needs to be maintained and replaced, the staff lifts the pulling block 73 upwards and rotates the vertical rod 72, so that the vertical rod 72 is in threaded connection with the fixed block 71 to drive the limit post 74 to keep the lifted state, thereby facilitating the staff to pull out the dehumidifying box 3 to maintain and replace the dehumidifying layer 42.

In order to prevent the dehumidification box 3 from sliding out of the other side of the installation groove 11, the orthographic projection area of the baffle plate 6 is larger than the area of the notch of the installation groove 11, so that the dehumidification box 3 is prevented from sliding out of the notch of the other side of the installation groove 11, and the normal use of the dehumidification assembly 4 is facilitated.

In order to reduce the probability that dust and sundries are sucked into the fan 41 after the fan 41 is started, a stepped groove 311 is formed at the intersection between the inner wall of the air inlet 31 and the bottom of the dehumidifying box 3, a filter screen frame 9 is installed in the stepped groove 311, a filter screen 91 is fixed on the inner wall of the filter screen frame 9, and the filter screen 91 provides a filtering effect for the air inlet 31, so that the probability that dust and sundries are sucked into the fan 41 after the fan 41 is started is reduced.

In order to facilitate cleaning of the filter screen 91 by a worker, an upper magnetic sheet 10 is embedded in the inner top wall of the stepped groove 311, a lower magnetic sheet 92 magnetically attracted with the upper magnetic sheet 10 is embedded in the upper surface of the filter screen frame 9, and the upper magnetic sheet 10 and the lower magnetic sheet 92 magnetically attract each other to fix the filter screen frame 9 in the stepped groove 311, so that the worker can conveniently pull out the dehumidifying box 3 and take down the filter screen frame 9 to clean the filter screen 91.

The use principle of the PLC power supply protection device in the embodiment is as follows: the dehumidification layer 42 is made of active carbon, drying agent and other materials, when the temperature and humidity sensor 5 monitors that the temperature or humidity in the protection cabinet 1 exceeds the standard, the fan 41 is started and blows air to the bottom plate 2, the air blown to the bottom plate 2 is subjected to moisture absorption and drying through the multi-layer dehumidification layer 42, and the dried air enters the protection cabinet 1 through the air inlet hole 21 on the bottom plate 2 and is discharged through the air outlet hole 12 for air circulation, so that the probability of damaging the PLC power supply by outside moist air is reduced, and the service life of the PLC power supply is prolonged. When the dehumidification layer 42 needs to be maintained and replaced, a worker only needs to lift the pulling block 73 upwards, so that the vertical rod 72 fixed with the pulling block 73 and the limit column 74 fixed with the vertical rod 72 move upwards, and the limit column 74 is separated from the abutting state with the baffle 6, so that the baffle 6 and the dehumidification box 3 are pulled out through the handle 61, the dehumidification layer 42 is convenient to maintain and replace regularly, when the dehumidification layer 42 does not need to be maintained and replaced, the limit column 74 abuts with the baffle 6, and the probability that the dehumidification box 3 automatically slides out due to factors such as shaking of the protection cabinet 1 is reduced.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The utility model provides a PLC power supply protection device, includes protection cabinet (1), characterized by: the utility model provides a protection cabinet (1) lateral wall is close to the position of bottom and has seted up mounting groove (11), be equipped with bottom plate (2) on the position that protection cabinet (1) inner wall is close to mounting groove (11), a plurality of fresh air inlet (21) have been seted up on bottom plate (2), be provided with in mounting groove (11) dehumidification box (3) of being connected with mounting groove (11) slip, install dehumidification subassembly (4) in dehumidification box (3), dehumidification subassembly (4) are including fan (41) of setting up diapire in dehumidification box (3) and a plurality of dehumidification layers (42) of setting between fan (41) and bottom plate (2), inlet (31) of supplying fan (41) air inlet have been seted up to dehumidification box (3) bottom, a plurality of fresh air outlet (12) have been seted up to the lateral wall of protection cabinet (1) both sides, be provided with temperature and humidity sensor (5) of being connected with fan (41) electricity in protection cabinet (1).

2. The PLC power supply protection device according to claim 1, wherein: the side wall of the dehumidification box (3) is fixedly provided with a baffle plate (6), and the side wall of one side, far away from the dehumidification box (3), of the baffle plate (6) is fixedly provided with a handle (61).

3. The PLC power supply protection device according to claim 2, characterized in that: install on the protection cabinet (1) and be used for carrying out spacing subassembly (7) to dehumidification box (3), spacing subassembly (7) include fixed block (71) fixed with dehumidification cabinet lateral wall, run through set up on fixed block (71) and slide montant (72) of being connected, with montant (72) fixed pulling piece (73) and with montant (72) lower extreme fixed spacing post (74), spacing post (74) one side and the lateral wall butt of baffle (6) one side.

4. A PLC power supply protection device according to claim 3, characterized by: the spring (8) is sleeved on the vertical rod (72), the upper end of the spring (8) is fixed with the lower surface of the pulling block (73), and the lower end of the spring (8) is fixed with the upper surface of the fixing block (71).

5. The PLC power supply protection device according to claim 4, wherein: an external thread (721) is arranged on the outer wall of the vertical rod (72) close to the limiting column (74), and an internal thread (711) for connecting the external thread (721) is arranged on the fixed block (71).

6. The PLC power supply protection device according to claim 5, wherein: the orthographic projection area of the baffle plate (6) is larger than the area of the notch of the mounting groove (11).

7. The PLC power supply protection device according to claim 1, wherein: the air inlet (31) is characterized in that a stepped groove (311) is formed in the intersection between the inner wall of the air inlet (31) and the bottom of the dehumidifying box (3), a filter screen frame (9) is arranged in the stepped groove (311), and a filter screen (91) is fixed on the inner wall of the filter screen frame (9).

8. The PLC power supply protection device according to claim 7, wherein: an upper magnetic sheet (10) is embedded in the inner top wall of the stepped groove (311), and a lower magnetic sheet (92) magnetically attracted with the upper magnetic sheet (10) is embedded in the upper surface of the filter screen frame (9).