Generator neutral point grounding resistor cabinet convenient for dust prevention

Abstract

The utility model relates to the field of generator neutral point grounding resistor cabinets, and discloses a generator neutral point grounding resistor cabinet convenient for dust prevention, which comprises a cabinet body, air inlet holes are arranged on two sides of the cabinet body, a plurality of louver boards are arranged on the two air inlet holes, and cleaning mechanisms are arranged on the inner side of the cabinet body and positioned at the two air inlet holes. The cleaning mechanism comprises a rectangular frame which is fixedly connected to the inner side of the cabinet body and located at the air inlet hole, limiting rods are fixedly connected between the two ends of the inner side of the rectangular frame, the circumferential surfaces of the two limiting rods are slidably sleeved with the same cleaning plate, the two ends of the cleaning plate are provided with round holes matched with the limiting rods, and a brush is arranged on the side, away from the air inlet hole, of the cleaning plate. According to the utility model, the technical effects that the filter screen at the air inlet hole has an automatic cleaning function and is matched with the rotating draft fan to blow out dust at the cleaning part to the outside, so that the cleaning efficiency is improved, the cleaning frequency of a user is reduced, and the practicability of the equipment is improved are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of generator neutral point grounding resistance cabinets, in particular to a generator neutral point grounding resistance cabinet which is convenient for dust prevention. Background Art

[0002] The resistor cabinet is a key device widely used in the fields of power, electrical and automation. It connects a series of adjustable resistors in series or in parallel to achieve precise adjustment of the resistance value in the circuit, thereby stabilizing the voltage and current. The resistor cabinet can effectively improve the operating efficiency of the power system and ensure the safety of electricity use. As an important part of the power system, the resistor cabinet plays a vital role in ensuring the stability and safety of power supply.

[0003] In the prior art, when the resistor cabinet is in use, the inside of the cabinet is cooled by exchanging air with the outside world. However, in order to prevent dust from entering the cabinet, a filter is generally provided at the air inlet. However, long-term use of the filter requires the user to clean and replace the filter regularly, which makes it less practical. For this reason, a generator neutral point grounding resistor cabinet is designed that is easy to prevent dust. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a neutral point grounding resistor cabinet for a generator which is convenient for dust prevention.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A generator neutral point grounding resistor cabinet that is easy to prevent dust, including a cabinet body, air inlet holes are opened on both sides of the cabinet body, and multiple louvers are arranged on the two air inlet holes. A cleaning mechanism is arranged at the two air inlet holes inside the cabinet body, and the cleaning mechanism includes a rectangular frame fixedly connected to the inside of the cabinet body at the air inlet holes, and a limiting rod is fixedly connected between the two ends of the inner side of the rectangular frame. The circumferential surfaces of the two limiting rods are slidingly sleeved with the same cleaning plate, and circular holes adapted to the limiting rods are opened at both ends of the cleaning plate. The cleaning plate is away from the air inlet. A brush is provided on one side of the hole, and a first L-shaped limit strip is fixedly connected to the top and bottom of the side of the rectangular frame away from the air inlet hole, and the same first filter is slidably connected between the two first L-shaped limit strips, and a cross bar is fixedly connected to the bottom of the rectangular frame, and a rotating shaft is fixedly connected to the top of the other end of the cross bar, and a first installation frame is rotatably connected to the top of the rotating shaft, and an exhaust fan is fixedly installed on the inner side of the first installation frame through a mounting plate. The exhaust fan can suck air and blow air, thereby realizing two functions of one exhaust fan, and a cylinder is fixedly connected to the top of the first installation frame.

[0007] As a further solution of the utility model, a special-shaped groove is opened on the circumferential surface of the cylinder, and the special-shaped groove includes two vertical grooves and one spiral groove, and the two ends of the spiral groove are respectively connected to the two vertical grooves.

[0008] As a further solution of the utility model, driving mechanisms are also provided on both sides of the inner side of the cabinet, and the driving mechanism includes a fixing plate fixedly connected to one side of the inner wall of the cabinet near the top, a motor is fixedly connected to the top of the fixing plate, a screw rod is fixedly connected to the bottom output end of the motor through the fixing plate, and the bottom of the screw rod passes through the rectangular frame and the cleaning plate and is rotatably connected to the bottom of the inner side of the rectangular frame, a round hole matching the screw rod is opened on the rectangular frame, and a threaded hole matching the screw rod is opened on the cleaning plate.

[0009] As a further scheme of the utility model, the driving mechanism also includes round rods fixedly connected to the two ends of the bottom of the cross bar, the bottoms of the two round rods are fixedly connected to the top of the rectangular frame, the circumferential surfaces of the two round rods are slidably sleeved with lifting blocks, the lifting blocks are provided with round holes matching the round rods, and the lifting blocks are threaded sleeves on the circumferential surface of the screw rod, the lifting blocks are provided with threaded holes matching the screw rod, the lifting blocks are fixedly connected to a baffle rod at one end close to the cylinder, and the other end of the baffle rod is slidably connected to the special-shaped groove, the cooperation of the baffle rod and the special-shaped groove enables the exhaust fan to rotate half a circle when cleaning starts, and starts to blow the first filter screen to blow out the dust.

[0010] As a further solution of the utility model, a heat dissipation hole is opened on the top of the cabinet, and second L-shaped limit strips are fixedly connected on both sides of the heat dissipation hole on the top of the cabinet. A second filter is slidably connected between the two second L-shaped limit strips, and the second filter can be disassembled and replaced.

[0011] As a further solution of the utility model, a second installation frame is fixedly connected to the inner side of the cabinet at the heat dissipation hole, and a blowing fan is fixedly connected to the second installation frame. The setting of the blowing fan facilitates the discharge of hot air inside the cabinet.

[0012] As a further solution of the utility model, a rain shielding inclined plate is fixedly connected to the top of the cabinet, and cabinet doors are provided on both sides of the front end of the cabinet. The provision of the rain shielding inclined plate can protect the top of the cabinet from rain.

[0013] The beneficial effects of the utility model are:

[0014] The utility model adopts the technical means of the first installation frame, the exhaust fan, the cylinder, the limit rod, the cleaning plate, the first L-shaped limit strip, the first filter screen, the screw rod, the round rod, the lifting block, the motor, the baffle rod and the special-shaped groove. When a lot of dust accumulates on the surface of the first filter screen, the motor is started to make the screw rod start to rotate. The rotation of the screw rod makes the lifting block and the cleaning plate descend, and the cleaning plate starts to clean the first filter screen. At the same time, the lifting block descends for a while and slides into the spiral groove of the special-shaped groove, so that the cylinder, the first installation frame and the exhaust fan start to rotate 180 degrees. Then, when the baffle rod slides to the vertical groove below, the exhaust fan is in a stationary state. The first filter screen is blown by the exhaust fan so that the dust on the first filter screen is discharged toward the air inlet, which effectively solves the problems raised in the background technology, and then realizes that the filter screen at the air inlet has the function of automatic cleaning. At the same time, in conjunction with the rotating exhaust fan, the dust at the cleaning location is blown out to the outside, thereby improving the cleaning efficiency, reducing the frequency of user cleaning, and improving the technical effect of the practicality of the device.

[0015] The utility model provides a blowing fan to facilitate the discharge of hot air inside the cabinet, and cooperates with two exhaust fans to achieve rapid replacement of the air inside the cabinet, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a neutral point grounding resistor cabinet for a generator that is convenient for dust prevention, as proposed by the utility model;

[0017] Figure 2 A schematic cross-sectional structural diagram of a cabinet body of a neutral point grounding resistor cabinet for a generator that is convenient for dust prevention proposed by the utility model;

[0018] Figure 3 The utility model provides a generator neutral point grounding resistor cabinet which is convenient for dust prevention. Figure 2 A schematic diagram of the structure enlarged at A;

[0019] Figure 4 The utility model provides a generator neutral point grounding resistor cabinet which is convenient for dust prevention. Figure 2 Schematic diagram of the enlarged structure at B.

[0020] In the figure: 1. cabinet body; 2. cabinet door; 3. air inlet; 4. rain shield inclined plate; 5. rectangular frame; 6. cross bar; 7. rotating shaft; 8. first installation frame; 9. exhaust fan; 10. cylinder; 11. limit rod; 12. cleaning plate; 13. first L-shaped limit strip; 14. first filter; 15. screw rod; 16. round rod; 17. lifting block; 18. motor; 19. stop rod; 21. special-shaped groove; 22. second installation frame; 23. blowing fan; 24. second L-shaped limit strip; 25. second filter; 26. fixing plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] Reference Figure 1-Figure 4 A generator neutral point grounding resistor cabinet that is easy to prevent dust, including a cabinet body 1, air inlet holes 3 are opened on both sides of the cabinet body 1, and multiple shutters are set on the two air inlet holes 3. A cleaning mechanism is set at the two air inlet holes 3 on the inner side of the cabinet body 1. The cleaning mechanism includes a rectangular frame 5 fixedly connected to the inner side of the cabinet body 1 at the air inlet hole 3, and a limit rod 11 is fixedly connected between the two ends of the inner side of the rectangular frame 5. The circumferential surface of the two limit rods 11 is slidably sleeved with the same cleaning plate 12, and both ends of the cleaning plate 12 are provided with a spacer that matches the limit rod 11. A round hole is provided on the cleaning plate 12 on the side away from the air inlet hole 3, a brush is provided on the side of the cleaning plate 12 away from the air inlet hole 3, a first L-shaped limit strip 13 is fixedly connected to the top and bottom of the side of the rectangular frame 5 away from the air inlet hole 3, a first filter screen 14 is slidably connected between the two first L-shaped limit strips 13, a cross bar 6 is fixedly connected to the bottom of the rectangular frame 5, a rotating shaft 7 is fixedly connected to the top of the other end of the cross bar 6, a first mounting frame 8 is rotatably connected to the top of the rotating shaft 7, an exhaust fan 9 is fixedly installed on the inner side of the first mounting frame 8 through a mounting plate, and a cylinder 10 is fixedly connected to the top of the first mounting frame 8.

[0024] In this embodiment, a special-shaped groove 21 is formed on the circumferential surface of the cylinder 10. The special-shaped groove 21 includes two vertical grooves and one spiral groove, and both ends of the spiral groove are respectively connected to the two vertical grooves.

[0025] In this embodiment, a driving mechanism is also provided on both sides of the inner side of the cabinet 1, and the driving mechanism includes a fixing plate 26 fixedly connected to one side of the inner wall of the cabinet 1 near the top, and a motor 18 is fixedly connected to the top of the fixing plate 26, and the bottom output end of the motor 18 passes through the fixing plate 26 and is fixedly connected to a screw rod 15, and the bottom of the screw rod 15 passes through the rectangular frame 5 and the cleaning plate 12 and is rotatably connected to the bottom of the inner side of the rectangular frame 5, a circular hole matching the screw rod 15 is opened on the rectangular frame 5, and a threaded hole matching the screw rod 15 is opened on the cleaning plate 12.

[0026] In this embodiment, the driving mechanism also includes round rods 16 fixedly connected to the two ends of the bottom of the cross bar 6, the bottoms of the two round rods 16 are fixedly connected to the top of the rectangular frame 5, and the circumferential surfaces of the two round rods 16 are slidably sleeved with lifting blocks 17, and the lifting blocks 17 are provided with round holes adapted to the round rods 16, and the lifting blocks 17 are threadedly sleeved on the circumferential surface of the screw rod 15, and the lifting blocks 17 are provided with threaded holes adapted to the screw rod 15, and one end of the lifting blocks 17 close to the cylinder 10 is fixedly connected to a baffle rod 19, and the other end of the baffle rod 19 is slidably connected to the special-shaped groove 21. Through the setting of the baffle rod 19 and the special-shaped groove 21, when the cleaning plate 12 starts to clean, the exhaust fan 9 turns back to rotate half a circle to blow the first filter 14.

[0027] In this embodiment, a heat dissipation hole is opened on the top of the cabinet 1, and second L-shaped limit strips 24 are fixedly connected on both sides of the heat dissipation hole on the top of the cabinet 1, and a second filter 25 is slidably connected between the two second L-shaped limit strips 24. The second filter 25 can be replaced by setting the second L-shaped limit strip 24, and the second filter 25 prevents dust from entering the top from entering easily.

[0028] In this embodiment, a second installation frame 22 is fixedly connected to the inner side of the cabinet 1 at the heat dissipation hole, and a blowing fan 23 is fixedly connected to the second installation frame 22 .

[0029] In this embodiment, a rain shielding inclined plate 4 is fixedly connected to the top of the cabinet 1 , and the rain shielding inclined plate 4 is used to protect the top of the cabinet 1 from rain. Cabinet doors 2 are provided on both sides of the front end of the cabinet 1 .

[0030] Working principle: When using this dust-proof generator neutral point grounding resistor cabinet, two exhaust fans 9 and blowing fans 23 are started. The exhaust fan 9 is used to suck the air from the outside into the cabinet 1. The first filter 14 is used to filter the air. The blowing fan 23 is used to discharge the hot air inside the cabinet 1. The exhaust fan 9 and the blowing fan 23 are used to replace the air inside the cabinet 1 and improve the heat dissipation of the cabinet 1. When a lot of dust accumulates on the surface of the first filter 14, the motor 18 is started to make the screw rod 15 start to rotate. 15 rotates, causing the lifting block 17 and the cleaning plate 12 to descend, and the cleaning plate 12 begins to clean the first filter 14. At the same time, the lifting block 17 descends for a while and slides into the spiral groove of the special-shaped groove 21, causing the cylinder 10, the first mounting frame 8 and the exhaust fan 9 to rotate 180 degrees. Then, when the blocking rod 19 slides to the vertical groove below, the exhaust fan 9 is in a stationary state. The first filter 14 is blown by the exhaust fan 9, so that the dust on the first filter 14 is discharged toward the air inlet 3. At the same time, the first filter 14 and the second filter 25 on the top can also be drawn out for replacement.

[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dustproof generator neutral point grounding resistor cabinet, comprising a cabinet body (1), characterized in that: Air inlet holes (3) are provided on both sides of the cabinet (1), and a plurality of louvers are provided on the two air inlet holes (3). A cleaning mechanism is provided at the two air inlet holes (3) on the inner side of the cabinet (1), and the cleaning mechanism comprises a rectangular frame (5) fixedly connected to the inner side of the cabinet (1) at the air inlet holes (3). A limiting rod (11) is fixedly connected between the two inner ends of the rectangular frame (5). The circumferential surfaces of the two limiting rods (11) are slidably sleeved with a same cleaning plate (12). Both ends of the cleaning plate (12) are provided with circular holes adapted to the limiting rods (11). The cleaning plate (12) is away from the air inlet holes. A brush is provided on one side of the hole (3); a first L-shaped limit strip (13) is fixedly connected to the top and bottom of the side of the rectangular frame (5) away from the air inlet hole (3); a first filter screen (14) is slidably connected between the two first L-shaped limit strips (13); a cross bar (6) is fixedly connected to the bottom of the rectangular frame (5); a rotating shaft (7) is fixedly connected to the top of the other end of the cross bar (6); a first installation frame (8) is rotatably connected to the top of the rotating shaft (7); an exhaust fan (9) is fixedly installed on the inner side of the first installation frame (8) via a mounting plate; and a cylinder (10) is fixedly connected to the top of the first installation frame (8).

2. The dustproof generator neutral point grounding resistor cabinet according to claim 1 is characterized in that: A special-shaped groove (21) is provided on the circumferential surface of the cylinder (10), wherein the special-shaped groove (21) includes two vertical grooves and one spiral groove, and the two ends of the spiral groove are respectively connected to the two vertical grooves.

3. The dustproof generator neutral point grounding resistor cabinet according to claim 1 is characterized in that: A driving mechanism is also provided on both sides of the inner side of the cabinet (1), and the driving mechanism comprises a fixing plate (26) fixedly connected to one side of the inner wall of the cabinet (1) near the top, a motor (18) is fixedly connected to the top of the fixing plate (26), a screw rod (15) is fixedly connected to the bottom output end of the motor (18) through the fixing plate (26), and the bottom of the screw rod (15) passes through the rectangular frame (5) and the cleaning plate (12) and is rotatably connected to the bottom of the inner side of the rectangular frame (5), a circular hole matching the screw rod (15) is provided on the rectangular frame (5), and a threaded hole matching the screw rod (15) is provided on the cleaning plate (12).

4. The dustproof generator neutral point grounding resistor cabinet according to claim 3 is characterized in that: The driving mechanism further comprises round rods (16) fixedly connected to the two ends of the bottom of the cross rod (6), the bottoms of the two round rods (16) are fixedly connected to the top of the rectangular frame (5), the circumferential surfaces of the two round rods (16) are slidably sleeved with lifting blocks (17), the lifting blocks (17) are provided with round holes matching the round rods (16), and the lifting blocks (17) are threadedly sleeved on the circumferential surface of the screw rod (15), the lifting blocks (17) are provided with threaded holes matching the screw rod (15), one end of the lifting blocks (17) close to the cylinder (10) is fixedly connected with a stop rod (19), and the other end of the stop rod (19) is slidably connected to the special-shaped groove (21).

5. The dustproof neutral point grounding resistor cabinet for generator according to claim 1, characterized in that: A heat dissipation hole is provided on the top of the cabinet (1); second L-shaped limit strips (24) are fixedly connected to both sides of the heat dissipation hole on the top of the cabinet (1); and a second filter screen (25) is slidably connected between the two second L-shaped limit strips (24).

6. The dustproof generator neutral point grounding resistor cabinet according to claim 1 is characterized in that: A second installation frame (22) is fixedly connected to the inner side of the cabinet (1) at the heat dissipation hole, and a blowing fan (23) is fixedly connected to the second installation frame (22).

7. The dustproof neutral point grounding resistor cabinet for generator according to claim 1, characterized in that: A rain shielding inclined plate (4) is fixedly connected to the top of the cabinet body (1), and cabinet doors (2) are arranged on both sides of the front end of the cabinet body (1).

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