CN221670202U - Switch board ventilation unit - Google Patents

Abstract

The utility model discloses a control cabinet ventilation device, which belongs to the technical field of control cabinets, and aims to solve the technical problems of low air flow and poor heat dissipation effect inside the elevator control cabinet under the prior art, as well as dust accumulation on the dustproof net, which requires frequent cleaning. The control cabinet ventilation device includes a control cabinet body, support foot plates are fixed at both ends of the bottom of the control cabinet body, a bottom shell cover is fixed between a pair of the support foot plates, the bottom shell cover is arranged on the bottom end surface of the control cabinet body, a ventilating port connected to the inside of the bottom shell cover is opened on the support foot plate, a heat dissipating fan is installed in the ventilating port, a plurality of first through holes are opened on the bottom wall of the control cabinet body, dustproof nets are arranged on the tops of the two side walls of the control cabinet body, a top shell cover arranged on the dustproof net is fixed on the outer side wall of the control cabinet body, and the top shell cover has a vertical downward opening.

Description

A control cabinet ventilation device

Technical Field

The utility model belongs to the technical field of control cabinets, and in particular relates to a ventilation device for a control cabinet.

Background Art

The elevator control cabinet is an electronic control device that installs various electronic devices and electrical components in a cabinet structure with safety protection function. It can also be called the elevator central control cabinet. In summer, due to the small internal space of the elevator control cabinet and the high temperature inside the control cabinet, electronic components and control modules will have endless elevator operation failures due to poor heat dissipation. Therefore, it is necessary to equip the elevator control cabinet with a ventilation structure to dissipate heat inside the elevator control cabinet.

The utility model with application number 202321341285.6 discloses a temperature control device for an elevator control cabinet. The fan provided can dissipate heat inside the elevator control cabinet body. The motor causes the threaded rod to drive the fan on the adjustment block to move up and down, making the heat dissipation more comprehensive and uniform. The dustproof net provided can reduce the dust and debris from entering the elevator control cabinet body and affecting the use of electronic devices. When the dustproof net is blocked, the motor is started to cause the bidirectional threaded rod to drive the push block to move. The push block causes the cleaning block below to drive the dust removal brush to move, and the dust and debris on the dustproof net are brushed off. The device has the advantages of convenient dust prevention and avoiding blockage of the dustproof net.

However, in the prior art, the dustproof net is arranged on the top of the elevator control cabinet, and the air flow can only pass through the dustproof net to enter and exit from the top of the elevator control cabinet for ventilation and heat dissipation. There are disadvantages such as low air flow inside the elevator control cabinet, poor heat dissipation effect, and the dustproof net is easy to accumulate dust and needs frequent cleaning. For this reason, the present application proposes a control cabinet ventilation device for an elevator.

Utility Model Content

In view of the deficiencies in the prior art, the purpose of the utility model is to provide a control cabinet ventilation device, aiming to solve the technical problems of low air flow and poor heat dissipation inside the elevator control cabinet and dust accumulation on the dustproof net under the prior art, which requires frequent cleaning.

Technical Solution

In order to solve the above technical problems, the utility model provides a control cabinet ventilation device, including a control cabinet body, support legs are fixed at both ends of the bottom of the control cabinet body, a bottom shell cover is fixed between a pair of the support legs, the bottom shell cover is arranged on the bottom end surface of the control cabinet body, a ventilation hole connected to the interior of the bottom shell cover is opened on the support legs, a cooling fan is installed in the ventilation hole, a plurality of first through holes are opened on the bottom wall of the control cabinet body, dust screens are arranged on the tops of both side walls of the control cabinet body, a top shell cover arranged on the dust screen is fixed on the outer side wall of the control cabinet body, and the top shell cover has a vertical downward opening.

Furthermore, a brush plate for cleaning the dust screen is installed in the top shell cover, and a pair of blocking plates and a driving member for driving the pair of blocking plates to block the dust screen are arranged on the top of the control cabinet.

Furthermore, the brush plate is rotatably mounted inside the top shell and contacts the surface of the dust screen, and a rotating handle coaxially connected to the brush plate is mounted on the outer wall of the top shell.

Furthermore, the driving member includes a shaft rod horizontally rotatably installed on the top of the control cabinet, the two ends of the shaft rod have opposite threads, a pair of sealing plates are threadedly engaged with the two ends of the shaft rod, and the top end of the sealing plate is slidably fitted with the top wall inside the control cabinet.

Furthermore, a driven gear is fixedly sleeved on the shaft rod, a driving motor is fixedly mounted on the top wall inside the control cabinet, a driving gear is fixed on the output shaft of the driving motor, and the driving gear is meshed with the driven gear.

Furthermore, an air guide plate is fixed on the inner wall of the control cabinet, and the air guide plate is located below the blocking plate.

Furthermore, an adjustment plate is attached to the bottom end surface of the control cabinet, and a plurality of second through holes that can be aligned with the first through holes are opened on the adjustment plate. An electric push rod is horizontally fixed inside the bottom shell cover, and a connecting plate is fixed to the telescopic end of the electric push rod, and the connecting plate is fixedly connected to the adjustment plate.

Beneficial Effects

Compared with the prior art, the beneficial effects of the utility model are:

The utility model starts the cooling fan in the ventilation hole of the supporting foot plate through the dust-proof net arranged on the top of the side wall of the control cabinet and the first through hole opened at the bottom of the control cabinet, so that the heat generated by the operation of the equipment inside the control cabinet can be extracted to the outside of the control cabinet through the first through hole and the second through hole, and negative pressure is generated inside the control cabinet, and then the outside air enters the top shell cover through the vertical downward opening on the top shell cover, and enters the control cabinet after being blocked by the dust-proof net, thereby forming an airflow circulation inside and outside the control cabinet, and the airflow inside the control cabinet is from top to bottom, which not only increases the air flow speed inside the control cabinet and improves the ventilation and heat dissipation effect, but also reduces the dust accumulation inside the control cabinet as much as possible.

In the utility model, by arranging the dust screen on the side wall of the control cabinet, and covering the side of the dust screen facing the outside of the control cabinet with a top shell cover having a vertical downward opening, dust can be prevented from entering the control cabinet as much as possible, and dust directly falling on the surface of the dust screen can be greatly reduced, thereby reducing the cleaning frequency of the dust screen. The structure is reasonable and more practical.

In the utility model, by using the adjustment plate arranged at the bottom of the control cabinet, when ventilation and heat dissipation are not required inside the control cabinet, the electric push rod can be started to push the connecting plate to drive the adjustment plate to move horizontally, so that the second through hole is completely misaligned with the first through hole, thereby blocking the first through hole at the bottom of the control cabinet, preventing dust, mosquitoes, etc. from entering from the bottom of the control cabinet and affecting the operation of the internal components of the control cabinet.

In the utility model, by setting the brush plate, the rotating handle drives the brush plate to rotate, so that the dust on the surface of the dust screen can be cleaned. During the cleaning process, the top shell cover arranged on the dust screen can prevent the cleaned dust from scattering. At the same time, a driving member is utilized to drive a pair of blocking plates away from each other to block the dust screen from the inside of the control cabinet, so that part of the dust can be prevented from passing through the dust screen and falling into the inside of the control cabinet during the dust cleaning process of the dust screen, which is more conducive to the cleaning operation of the dust screen.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the internal structure of the control cabinet of the utility model;

FIG3 is a schematic diagram of the top structure of the control cabinet in the utility model;

FIG. 4 is a schematic diagram of the bottom structure of the control cabinet in the present invention.

The markings in the attached drawings are: 1. control cabinet; 2. support foot plate; 3. bottom shell cover; 4. vent; 5. cooling fan; 6. top shell cover; 7. first through hole; 8. adjustment plate; 9. dust screen; 10. blocking plate; 11. driving member; 12. brush plate; 13. rotating handle; 14. air guide plate; 15. shaft; 16. driven gear; 17. driving gear; 18. driving motor; 19. connecting plate; 20. electric push rod; 21. second through hole.

DETAILED DESCRIPTION

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 in 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.

The present embodiment provides a control cabinet ventilation device, and its structural schematic diagram is shown in Figures 1 to 4, including a control cabinet body 1, support legs 2 are fixed at both ends of the bottom of the control cabinet body 1, a bottom shell cover 3 is fixed between a pair of support legs 2, and the bottom shell cover 3 is arranged on the bottom end surface of the control cabinet body 1. A ventilation hole 4 connected to the inside of the bottom shell cover 3 is opened on the support leg 2, and a heat dissipation fan 5 is installed in the ventilation hole 4. A plurality of first through holes 7 are opened on the bottom wall of the control cabinet body 1. Through this structural method, the heat dissipation fan 5 in the ventilation hole 4 on the support leg 2 is started, and the heat generated by the operation of the internal equipment of the control cabinet body 1 is extracted from the first through holes 7, the bottom shell cover 3 and the ventilation hole 4 to the outside of the control cabinet body 1, so that the control cabinet body 1 can be ventilated and cooled.

In a further embodiment, a dust-proof net 9 is provided on the top of both side walls of the control cabinet 1, and a top shell cover 6 is fixed on the outer side wall of the control cabinet 1 and is covered on the dust-proof net 9, and the top shell cover 6 has a vertical downward opening. After the cooling fan 5 is started, a negative pressure is generated inside the control cabinet 1, and the external air enters the top shell cover 6 through the vertical downward opening on the top shell cover 6, and then enters the control cabinet 1 after passing through the dust-proof net 9 to block the dust, thereby forming an air flow circulation inside and outside the control cabinet 1, and the air flow inside the control cabinet 1 is from top to bottom, which not only increases the air flow speed inside the control cabinet 1 and improves the ventilation and heat dissipation effect, but also reduces the dust accumulation inside the control cabinet 1 as much as possible. In addition, the dust-proof net 9 is arranged on the side wall of the control cabinet 1, and a top shell cover 6 with a vertical downward opening is provided on the side of the dust-proof net 9 facing the outside of the control cabinet 1, which not only avoids dust from entering the control cabinet 1 as much as possible, but also can greatly reduce the direct dust falling on the surface of the dust-proof net 9, thereby reducing the cleaning frequency of the dust-proof net 9.

In a further embodiment, an adjustment plate 8 is attached to the bottom end surface of the control cabinet 1, and a plurality of second through holes 21 that can be aligned with the first through holes 7 are opened on the adjustment plate 8. An electric push rod 20 is horizontally fixed inside the bottom shell cover 3, and a connecting plate 19 is fixed to the telescopic end of the electric push rod 20. The connecting plate 19 is fixedly connected to the adjustment plate 8. When ventilation and heat dissipation are not required inside the control cabinet 1, the electric push rod 20 is started to push the connecting plate 19 to drive the adjustment plate 8 to move horizontally, so that the second through hole 21 is completely misaligned with the first through hole 7, thereby blocking the first through hole 7 at the bottom of the control cabinet 1, and preventing dust, mosquitoes, etc. from entering from the bottom of the control cabinet 1 to affect the operation of the internal components of the control cabinet 1.

In a further embodiment, a brush plate 12 for cleaning the dust screen 9 is installed in the top shell cover 6. The brush plate 12 is rotatably installed inside the top shell cover 6 and contacts the surface of the dust screen 9. A rotating handle 13 coaxially connected to the brush plate 12 is installed on the outer wall of the top shell cover 6. Rotating the rotating handle 13 drives the brush plate 12 to rotate, so as to clean the dust on the surface of the dust screen 9. During the cleaning process, the top shell cover 6 covering the dust screen 9 can prevent the cleaned dust from flying around.

Furthermore, a pair of blocking plates 10 and a driving member 11 for driving the pair of blocking plates 10 to block the dust screen 9 are provided at the top of the control cabinet 1. The driving member 11 includes a shaft 15 horizontally rotatably installed at the top of the control cabinet 1. The two ends of the shaft 15 have opposite threads. The pair of blocking plates 10 are threadedly sleeved with the two ends of the shaft 15. The top of the blocking plate 10 is slidably fitted with the top wall inside the control cabinet 1. A driven gear 16 is fixedly sleeved on the shaft 15. A driving motor 18 is fixedly installed on the top wall inside the control cabinet 1. A driving gear 17 is fixed on the output shaft of the driving motor 18. The driving gear 17 is meshed with the driven gear 16. When the driving motor 18 is started, the shaft 15 can be driven to rotate under the transmission of the driving gear 17 and the driven gear 16, driving the pair of blocking plates 10 away from each other, thereby blocking the dust screen 9 from the inside of the control cabinet 1, which can prevent some dust from passing through the dust screen 9 and falling into the inside of the control cabinet 1 during the dust cleaning process of the dust screen 9. An air guide plate 14 is fixed on the inner wall of the control cabinet 1. The air guide plate 14 is located below the sealing plate 10. When the sealing plate 10 does not block the dust shielding net 9, external air enters the control cabinet 1 through the dust shielding net 9. The air guide plate 14 can guide the airflow to the middle part of the control cabinet 1 to ensure the heat dissipation effect inside the control cabinet 1.

Working principle: When in use, start the cooling fan 5 in the vent 4 on the support foot plate 2, and extract the heat generated by the operation of the equipment inside the control cabinet 1 from the first through hole 7 and the second through hole 21 to the outside of the control cabinet 1, and generate negative pressure inside the control cabinet 1, and then the external air enters the top shell cover 6 through the vertical downward opening on the top shell cover 6, and then enters the control cabinet 1 after passing through the dust screen 9 to block the dust, thereby forming an air flow cycle inside and outside the control cabinet 1, and the air flow inside the control cabinet 1 is from top to bottom, which not only increases the air flow speed inside the control cabinet 1, improves the ventilation and heat dissipation effect, but also reduces the dust accumulation inside the control cabinet 1 as much as possible. Furthermore, the dust screen 9 is arranged on the side wall of the control cabinet 1, and a top shell cover 6 with a vertical downward opening is arranged on the side of the dust screen 9 facing the outside of the control cabinet 1, which not only avoids dust from entering the control cabinet 1 as much as possible, but also can greatly reduce the dust directly falling on the surface of the dust screen 9, thereby reducing the cleaning frequency of the dust screen 9, and the structure is reasonable and more practical. Furthermore, when ventilation and heat dissipation are not required inside the control cabinet 1, the electric push rod 20 can be started to push the connecting plate 19 to drive the adjustment plate 8 to translate, so that the second through hole 21 is completely misaligned with the first through hole 7, thereby blocking the first through hole 7 at the bottom of the control cabinet 1, and preventing dust, mosquitoes, etc. from entering from the bottom of the control cabinet 1 and affecting the operation of the internal components of the control cabinet 1; further, by rotating the rotating handle 13 to drive the brush plate 12 to rotate, the dust on the surface of the dust screen 9 can be cleaned. During the cleaning process, the top shell cover 6 provided on the dust screen 9 can prevent the cleaned dust from flying around. At the same time, the driving motor 18 is started, and the shaft 15 is driven to rotate under the transmission of the driving gear 17 and the driven gear 16, driving a pair of blocking plates 10 to move away from each other, and blocking the dust screen 9 from the inside of the control cabinet 1. During the dust cleaning process of the dust screen 9, some dust can be prevented from passing through the dust screen 9 and falling into the control cabinet 1.

All technical features in this embodiment can be freely combined according to actual needs.

Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a switch board ventilation unit, includes the switch board body (1), its characterized in that:

The control cabinet comprises a control cabinet body (1), a pair of support foot plates (2) are fixed at two ends of the bottom of the control cabinet body (1), a bottom shell cover (3) is fixed between the support foot plates (2), the bottom shell cover (3) is covered on the bottom end face of the control cabinet body (1), a vent (4) communicated with the inside of the bottom shell cover (3) is formed in the support foot plates (2), a cooling fan (5) is arranged in the vent (4), a plurality of first through holes (7) are formed in the bottom wall of the control cabinet body (1), dust separation nets (9) are arranged at the tops of two side walls of the control cabinet body (1), a top shell cover (6) covered on the dust separation nets (9) is fixed on the outer side wall of the control cabinet body (1), and the top shell cover (6) is provided with a vertical downward opening.

2. A control cabinet ventilation device according to claim 1, characterized in that a brush plate (12) for cleaning the dust-proof net (9) is installed in the top shell cover (6), and a pair of plugging plates (10) and a driving member (11) for driving the pair of plugging plates (10) to plug the dust-proof net (9) are arranged at the top in the control cabinet body (1).

3. A control cabinet ventilation arrangement according to claim 2, characterized in that the brush plate (12) is rotatably mounted inside the top housing (6) and in surface contact with the dust separation net (9), and that a rotating handle (13) coaxially connected to the brush plate (12) is mounted on the outer wall of the top housing (6).

4. A control cabinet ventilation device according to claim 2, characterized in that the driving member (11) comprises a shaft lever (15) horizontally rotatably mounted at the inner top of the control cabinet body (1), opposite threads are formed at two ends of the shaft lever (15), a pair of plugging plates (10) are in threaded socket fit with the two ends of the shaft lever (15), and the top ends of the plugging plates (10) are in sliding fit with the inner top wall of the control cabinet body (1).

5. A control cabinet ventilation device according to claim 4, characterized in that the driven gear (16) is fixedly sleeved on the shaft lever (15), a driving motor (18) is fixedly installed on the top wall inside the control cabinet body (1), a driving gear (17) is fixed on the output shaft of the driving motor (18), and the driving gear (17) is meshed with the driven gear (16).

6. A control cabinet ventilation device according to claim 2, characterized in that an air deflector (14) is fixed on the inner side wall of the control cabinet body (1), and the air deflector (14) is located below the plugging plate (10).

7. The control cabinet ventilation device according to claim 1, characterized in that an adjusting plate (8) is attached to the bottom end face of the control cabinet body (1), a plurality of second through holes (21) which can be aligned with the first through holes (7) are formed in the adjusting plate (8), an electric push rod (20) is horizontally fixed inside the bottom shell cover (3), a connecting plate (19) is fixed to the telescopic end of the electric push rod (20), and the connecting plate (19) is fixedly connected with the adjusting plate (8).