Moisture-proof device for power distribution cabinet

Abstract

The utility model provides a moisture-proof device for a power distribution cabinet, which relates to the technical field of moisture-proof of power distribution cabinets, and comprises an air heater arranged on the top wall of a power distribution cabinet body, a flow guide part is arranged on an element mounting frame of the power distribution cabinet body, and the flow guide part comprises at least four flow guide plates, a moisture sensor and a temperature sensor; the flow guide plates are arranged in a triangular mode, each face of each flow guide plate is used for guiding hot air, a moisture sensor and a temperature sensor are arranged on one flow guide plate, cotton cloth is fixed to the lower surfaces of the flow guide plates through rivets, and hook-and-loop fasteners are arranged on the upper surfaces of the moisture absorbents and bonded with the cotton cloth. According to the utility model, the hot-air blower control system controls the hot-air blower to start to generate hot air, the hot air is in contact with the plurality of guide plates, and the triangular guide plates can effectively change the airflow direction and guide the hot air to uniformly flow in multiple directions, so that the hot air can fully reach each corner of the power distribution cabinet body, the dehumidification uniformity is improved, and the problem that partial areas are still humid can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a power distribution cabinet moistureproof device belongs to power distribution cabinet moistureproof technical field. BACKGROUND

[0002] The power distribution cabinet moistureproof device is used to prevent the internal electrical components from being damp, which may cause performance degradation, shortened service life, and even safety accidents. The specific reasons include the following aspects: preventing electrical component damage: the electrical components in the power distribution cabinet, such as circuit breakers, contactors, and relays, are mostly made of metal and electronic materials. When they are damp, the metal parts are prone to rust and corrosion, and the insulation performance of the electronic components may be reduced, which may affect their normal operation and shorten their service life. Avoiding short circuit failure: a humid environment may increase the humidity of the air inside the power distribution cabinet. When the humidity reaches a certain level, a thin layer of water film may form on the surface of the electrical components, which may cause the insulation performance between conductors of different potentials to decrease, leading to short circuit failure and even power outage accidents. Preventing the risk of electric shock: dampness may reduce the insulation resistance of electrical equipment. When the insulation resistance is lower than the safety value, electric shock may occur, posing a serious threat to the personal safety of operators and surrounding personnel. In addition, in some places with large diurnal temperature difference or high environmental humidity, condensation may occur inside the power distribution cabinet. The water droplets formed by condensation may directly fall on the electrical components, exacerbating the degree of dampness and causing various electrical faults. Installing a moistureproof device can effectively control the humidity environment inside the power distribution cabinet, ensure the stable operation of the electrical system, reduce the failure rate caused by dampness, improve the reliability of power supply, and ensure the normal operation of various activities such as production and life.

[0003] The existing technology with application number CN202123099453.9 discloses a power distribution cabinet moistureproof device, which includes a moistureproof cabinet, a drying mechanism, and a drying mechanism. The inside of the moistureproof cabinet is hollow to form a containing space. The drying mechanism includes a drying box, a blowing unit, and a heating unit. The drying box is arranged at one end of the containing space in the horizontal direction. A plurality of ventilation openings are formed on the end face of the drying box facing the containing space. The blowing unit is arranged inside the drying box, and the blowing unit is arranged at the outlet end of the fan facing the ventilation opening. The heating unit is arranged between the outlet end of the fan and the ventilation opening in the horizontal direction.

[0004] The above-mentioned existing technology is known through actual use. It mainly blows hot air into the power distribution cabinet to achieve dehumidification. However, the vertical downward blowing of hot air may cause uneven distribution of hot air, which may cause differences in dehumidification effect at different positions in the power distribution cabinet, and some areas may still have humidity problems. Therefore, we improve the above-mentioned existing technology according to the actual use. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model aims to provide a power distribution cabinet moistureproof device.

[0006] To achieve the technical purpose, the utility model discloses a scheme that a power distribution cabinet moisture-proof device, including the hot -blast machine of setting in the power distribution cabinet body top wall, the element mounting frame of power distribution cabinet body is provided with the flow guide piece, the flow guide piece includes at least four flow guide plate, humidity sensor and temperature sensor, the flow guide plate is triangularly provided and each surface of flow guide plate is used to the hot -blast guide, wherein one of the flow guide plate is provided humidity sensor and temperature sensor.

[0007] Preferably, the rear end of the flow guide plate is provided with a fixing frame, and the fixing frame is fixed with the element mounting frame of the power distribution cabinet body for mounting the flow guide plate.

[0008] Preferably, one side of the flow guide plate is fixed with the humidity sensor and the temperature sensor through glue solution, and the lower surface of the flow guide plate is provided with a moisture absorbent.

[0009] Preferably, the lower surface of the flow guide plate is fixed with cotton through a rivet, and the upper surface of the moisture absorbent is provided with a magic tape, and the magic tape is bonded with the cotton for mounting the moisture absorbent.

[0010] Preferably, the upper surface of the moisture absorbent is provided with a dust absorption plate.

[0011] Preferably, the flow guide plate is hollow, and the front end of the flow guide plate is provided with an opening 36. Beneficial effects

[0012] The hot -blast machine control system controls the hot -blast machine to start to generate hot air, and the hot air contacts the plurality of flow guide plates, the triangular flow guide plate can effectively change the airflow direction, guide the hot air to flow uniformly in multiple directions, so that the hot air can fully reach every corner of the power distribution cabinet body, improve the uniformity of dehumidification, and can avoid the problem that some areas are still humid.

[0013] In addition, the moisture absorbent can increase the moisture absorption effect, and the dust absorption plate arranged below the moisture absorbent can absorb dust in the hot air, effectively preventing dust from entering the components in the power distribution cabinet body. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the schematic view that the utility model is connected with the power distribution cabinet body.

[0015] Figure 2 It is the schematic view of the flow guide piece of the utility model.

[0016] Figure 3 It is the partial schematic view of the flow guide piece of the utility model.

[0017] Figure 4 It is the schematic view of another view angle that the utility model is connected with the power distribution cabinet body.

[0018] Wherein 1, power distribution cabinet body; 2, hot air machine; 3, flow guide; 31, flow guide plate; 32, moisture absorbent; 33, fixing frame; 34, humidity sensor; 35, temperature sensor; 36, opening 36; 37, cotton cloth; 38, magic tape; 39, dust absorption plate. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail below in combination with the drawings and specific embodiments. In order to clearly and completely describe the technical scheme, the following embodiments are selected for description; based on the content recorded in the present application, other embodiments obtained without making creative labor are within the scope of protection of the utility model.

[0020] In the following embodiments, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom" and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of clearly describing the embodiments, and do not indicate or imply that the devices or elements referred to must have a particular orientation, so it cannot be understood as a limitation on the present application.

[0021] As Figures 1 to 4 shown, the embodiment of the application provides a power distribution cabinet moisture-proof device, which comprises a hot air machine 2 arranged on the top wall of a power distribution cabinet body 1, and a flow guide 3 arranged on a component mounting frame of the power distribution cabinet body 1, wherein the flow guide 3 comprises at least four flow guide plates 31, a humidity sensor 34 and a temperature sensor 35; each face of the flow guide plate 31 is arranged in a triangular shape and is used for guiding hot air, and the humidity sensor 34 and the temperature sensor 35 are arranged on one of the flow guide plates 31 and are used for detecting humidity and temperature.

[0022] Referring to Figure 2 , the rear end of the flow guide plate 31 is provided with a fixing frame 33, and the fixing frame 33 is fixed to the component mounting frame of the power distribution cabinet body 1 and is used for mounting the flow guide plate 31. The humidity sensor 34 and the temperature sensor 35 are fixed to one face of the flow guide plate 31 through glue solution, and the lower surface of the flow guide plate 31 is provided with the moisture absorbent 32.

[0023] The temperature of the power distribution cabinet body 1: generally, the temperature range of the power distribution cabinet body 1 during normal operation is between-5 DEG C and 40 DEG C. Within this temperature range, the electrical components in the power distribution cabinet body 1 can work stably, and the performance and service life can also be better guaranteed. The humidity of the power distribution cabinet body 1: the relative humidity during normal operation of the power distribution cabinet should generally be maintained between 50% and 70%. Within this humidity range, the surface condensation of the electrical components can be effectively prevented, and the problems of moisture, insulation performance decline, short circuit and the like caused by moisture can be avoided, so that the safe and reliable operation of the power distribution cabinet is ensured;

[0024] Referring to Figure 2The lower surface of the deflector 31 is fixed with cotton cloth 37 through rivets, and the upper surface of the moisture absorbing agent 32 is provided with Velcro 38 which is stitched and adhered to the cotton cloth 37 for mounting the moisture absorbing agent 32, so as to facilitate replacement of the moisture absorbing agent 32; the moisture absorbing agent 32 is packaged with non-woven fabric, has good air permeability, can allow moisture to enter and contact the moisture absorbing agent 32 smoothly, and has relatively low price and good flexibility, and can be made into various shapes and sizes according to requirements.

[0025] With reference to Figure 2 The upper surface of the moisture absorbing agent 32 is provided with a dust absorbing plate 39 which is stitched; the dust absorbing plate 39 can be non-woven fabric, and a viscous chemical substance such as an acrylate or silicone is coated on the surface of the non-woven fabric. The viscous chemical substance forms a viscous film on the surface of the non-woven fabric, so that dust particles can be adhered when contacting the non-woven fabric, thereby achieving the dust absorbing effect.

[0026] With reference to Figure 2 The deflector 31 is hollow and the front end of the deflector 31 is provided with an opening 36;

[0027] The deflector 31 is triangular, hollow and has the opening 36 at the front end, and has the following advantages in addition to guiding hot air: enhanced structural stability: the triangular structure itself has stability, and when the deflector 31 bears external forces such as hot air pressure, it can better maintain its shape and is not easy to deform or be damaged, and can more reliably play a role compared to other shapes.

[0028] Reduced weight: the hollow design can significantly reduce the weight of the deflector 31 without affecting its basic functions. This is helpful for reducing the overall load and the pressure on the supporting structure for some power distribution cabinets or systems that have weight requirements, and also facilitates installation and maintenance.

[0029] Reduced material cost: due to the hollow structure, the amount of material used is reduced, thereby reducing production costs. In large-scale applications, the reduction of material cost will bring obvious economic benefits. Heat buffering and balancing: the hollow structure can play a certain role in heat buffering, and the air in the hollow part can absorb and store part of the heat during the guiding of hot air, so that the temperature change of the hot air is relatively stable, which helps to avoid local overheating or overcooling, and makes the heat distribution more balanced.

[0030] Reduced heat loss: the air layer inside the hollow structure has certain heat insulation performance, which can reduce the heat exchange between the inside and outside of the deflector 31 to a certain extent, reduce heat loss, and improve the utilization efficiency of hot air. For systems that need to maintain the temperature of hot air, this helps to save energy.

[0031] Reduce air resistance: the design of hollow and open front end 36 can make the airflow more smoothly through the guide plate 31 when guiding hot air, reducing the turbulence of airflow; thereby improving the efficiency of hot air guiding, so that hot air can reach the target position more effectively.

[0032] Air flow fine tuning and diffusion: the triangular shape and the design of opening 36 can fine tune the airflow, so that the hot air can diffuse or converge in a specific direction during the guiding process, better control the flow direction and coverage of hot air according to the specific application requirements, realize more accurate hot air distribution.

[0033] Working principle: the humidity sensor 34 can detect the humidity in the power distribution cabinet body 1, and the temperature sensor 35 can detect the temperature in the power distribution cabinet body 1. When the humidity sensor 34 detects that the humidity in the power distribution cabinet body 1 exceeds the preset value, the hot air fan 2 control system controls the hot air fan 2 to start generating hot air, which will contact with multiple guide plates 31. The triangular guide plate 31 can effectively change the direction of airflow, guide the hot air to flow uniformly in multiple directions, so that the hot air can fully reach every corner of the power distribution cabinet body 1, improve the uniformity of dehumidification, and avoid the problem of moisture in some areas of the power distribution cabinet body 1.

[0034] In addition, the moisture absorbent 32 can increase the moisture absorption effect, and the dust absorption plate 39 arranged below the moisture absorbent 32 can absorb the dust in the hot air, effectively preventing dust from entering the components in the power distribution cabinet body 1.

[0035] The above is only the preferred embodiment of the present application, and is not used to limit the present application. Any slight modification, equivalent replacement and improvement made according to the technical essence of the present application to the above embodiment shall be included in the protection scope of the technical scheme of the present application.

Claims

1. A moisture-proof device for a power distribution cabinet, comprising a hot air blower (2) arranged on a top wall of a body (1) of the power distribution cabinet, characterized in that: The element mounting frame of the power distribution cabinet body (1) is provided with a flow guide member (3), and the flow guide member (3) comprises at least four flow guide plates (31), a humidity sensor (34) and a temperature sensor (35); The flow guide plates (31) are triangularly arranged, and each face of the flow guide plates (31) is used for guiding hot air, wherein the humidity sensor (34) and the temperature sensor (35) are arranged on one of the flow guide plates (31).

2. The power distribution cabinet moisture barrier of claim 1, wherein: The rear end of the flow guide plate (31) is provided with a fixing frame (33), and the fixing frame (33) is fixed with the element mounting frame of the power distribution cabinet body (1) and is used for mounting the flow guide plate (31).

3. The power distribution cabinet moisture barrier of claim 2, wherein: One face of the flow guide plate (31) is fixed with the humidity sensor (34) and the temperature sensor (35) through glue solution, and the lower surface of the flow guide plate (31) is provided with a moisture absorbent (32).

4. The power distribution cabinet moisture barrier of claim 3, wherein: The lower surface of the flow guide plate (31) is fixed with a cotton cloth (37) through a rivet, the upper surface of the moisture absorbent (32) is provided with a magic tape (38), and the magic tape (38) is adhered with the cotton cloth (37) and is used for mounting the moisture absorbent (32).

5. The power distribution cabinet moisture barrier of claim 4, wherein: The upper surface of the moisture absorbent (32) is provided with a dust absorption plate (39).

6. The power distribution cabinet moisture barrier of claim 1, wherein: The flow guide plate (31) is hollowly arranged, and the front end of the flow guide plate (31) is provided with an opening 36 (36). The flow guide plate (31) is hollowly arranged, and the front end of the flow guide plate (31) is provided with an opening 36 (36).

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