Frequency converter chamber

Abstract

The utility model discloses a frequency converter chamber, which belongs to the technical field of frequency converters and comprises a ventilation inlet, a ventilation outlet and a ventilator, an air filtering chamber is arranged outside the ventilation inlet; an air outlet pipeline is arranged at the ventilation outlet; an air inlet is formed in one end face of the cylinder and connected with a ventilation pipe. An air outlet is formed in the other end face of the cylinder; a condenser is arranged between the ventilation pipe and the air outlet, a water cooler is wound on the ventilation pipe, and a plurality of layers of filter screens are arranged outside the air inlet; a water outlet is formed in the lower cylinder corresponding to the condenser; the ventilation pipe is funnel-shaped and comprises a variable-diameter section and an equal-diameter section; the end opening of the variable-diameter section coincides with the air inlet, and the end opening of the equal-diameter section is flush with the air outlet. According to the utility model, low temperature, low humidity and low dust of the frequency converter indoor environment can be ensured, and the service life of the frequency converter is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency converter technical field especially a frequency converter room. BACKGROUND

[0002] In the dust removal frequency converter room, the environment where the frequency converter is located has the following problems:

[0003] 1. Too high temperature: the normal use temperature of the frequency converter is 40 degrees, and exceeding the temperature will reduce the performance of the frequency converter and affect the service life of main components such as IGBT and electrolytic capacitor.

[0004] 2. Too high humidity: the relative humidity of the frequency converter should be less than 95%, and too high humidity may cause internal component short circuit, reduce insulation performance and service life.

[0005] 3. Too much dust: dust is a killer of heat dissipation, affects control loop signal transmission, hinders air duct, and reduces system air volume.

[0006] 4. Corrosive environment: corrosive environment will corrode the circuit, affect signal transmission, damage power components, and trigger control disorder. INVENTION CONTENTS

[0007] The technical problem to be solved by the utility model is to provide a frequency converter room that can ensure low temperature, low humidity and low dust in the frequency converter room and prolong the service life of the frequency converter.

[0008] To solve the above technical problems, the utility model adopts the following technical scheme:

[0009] A frequency converter room comprises a ventilation inlet and a ventilation outlet arranged on the wall of the frequency converter room and a ventilator arranged in the frequency converter room, a filter room is arranged outside the ventilation inlet, and an air outlet pipeline is arranged at the ventilation outlet.

[0010] The filter room is in a cylindrical shape, an air inlet is arranged on one end surface of the cylinder, the air inlet is connected with a ventilation pipe, an air outlet is arranged on the other end surface of the cylinder, a condenser is arranged between the ventilation pipe and the air outlet, a water cooler is arranged around the ventilation pipe, a plurality of filter screens are arranged outside the air inlet, and a drain hole is arranged on the lower cylinder corresponding to the condenser.

[0011] Further improvement of the utility model technical scheme is that the ventilation pipe is in a funnel shape and comprises a variable-diameter section and a constant-diameter section, the variable-diameter section is coincident with the air inlet at the port, and the constant-diameter section is flush with the air outlet at the port.

[0012] Further improvement of the utility model technical scheme is that the condenser is wound around the constant-diameter section of the ventilation pipe.

[0013] The further improvement in the technical scheme of the utility model lies in that: the temperature sensor is arranged in the frequency conversion chamber, and the temperature sensor is interlocked with the water cooler.

[0014] The further improvement in the technical scheme of the utility model lies in that: the humidity sensor is arranged in the frequency conversion chamber, and the humidity sensor is interlocked with the condenser.

[0015] Thanks to the above technical scheme, the utility model has the following technical progress:

[0016] 1. The utility model discloses a filter chamber, which can ensure the low temperature, low humidity and low dust in the frequency converter chamber, prolonging the service life of the frequency converter.

[0017] 2. The ventilation pipe in the utility model is funnel-shaped, which can reduce the air temperature at the air outlet by compressing the air entering the filter chamber.

[0018] 3. The utility model discloses a temperature sensor and a humidity sensor arranged in the frequency conversion chamber, which can close or open the related devices according to the temperature and humidity in the frequency conversion chamber, thereby saving electric energy.

[0019] 4. The utility model discloses a condenser as a dehumidifier, which can dehumidify and cool the gas at the same time. DRAWINGS

[0020] Figure 1 It is the frequency conversion chamber schematic view in the utility model;

[0021] Figure 2 It is the filter chamber schematic view in the utility model;

[0022] 1, frequency conversion chamber wall, 2, filter chamber, 21, air inlet, 22, ventilation pipe, 23, air outlet, 3, air outlet pipeline, 4, condenser, 5, water cooler, 6, filter screen. CONCRETE IMPLEMENTATION

[0023] The utility model will be further described in combination with the drawings and examples:

[0024] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, structure and operation, so it cannot be understood as a limitation on the utility model.

[0025] In addition, in the description of the present invention, “several” means at least two, such as two, three, etc., unless otherwise clearly defined.

[0026] like Figure 1 As shown, a frequency converter room includes a ventilation inlet and a ventilation outlet arranged on the wall 1 of the frequency converter room and a ventilator arranged in the frequency converter room; an air filter chamber 2 is arranged outside the ventilation inlet, and an air outlet duct 3 is arranged at the ventilation outlet;

[0027] The air filter chamber 2 is cylindrical, and an air inlet 21 is provided on one end face of the cylinder, and the air inlet 21 is connected to the ventilation pipe 22; an air outlet 23 is provided on the other end face of the cylinder; a condenser 4 is provided between the ventilation pipe 22 and the air outlet 23, a water cooler 5 is wound around the ventilation pipe 22, and several layers of filter screen 6 are provided outside the air inlet 21; a drain outlet is provided on the lower cylinder corresponding to the condenser 4.

[0028] The ventilation pipe 22 is funnel-shaped, including a variable diameter section and a constant diameter section; the end of the variable diameter section coincides with the air inlet 21, and the end of the constant diameter section is flush with the air outlet 23; the condenser 4 is wound around the constant diameter section of the ventilation pipe 22.

[0029] A temperature sensor and a humidity sensor are also provided in the frequency conversion room. The humidity sensor is interlocked with the condenser 4 , and the temperature sensor is interlocked with the water cooler 5 .

[0030] Working principle:

[0031] The ventilation pipe 22 is configured as a funnel, which compresses the air entering the air filter chamber 2 to reduce the air temperature at the air outlet 23;

[0032] A temperature sensor is set in the frequency conversion room. When the temperature in the frequency conversion room is higher than 40°C, the normally open contact of the temperature sensor is closed, and the water cooler 5 is started. The water cooler 5 cools the air in the air filter chamber 2, thereby achieving the effect of cooling the frequency conversion room; when the temperature in the frequency conversion room is lower than 40°C, the normally open contact of the temperature sensor is disconnected, and the water cooler 5 is turned off, thereby saving energy.

[0033] A humidity sensor is set in the frequency conversion room. When the relative humidity in the frequency conversion room is greater than 95%, the normally open contact of the humidity sensor is closed, and the condenser 4 is started. The condenser 4 dries the air in the air filter chamber 2 and also cools it, thereby achieving the effect of dehumidifying and cooling the frequency conversion room; when the relative humidity in the frequency conversion room is less than 95%, the normally open contact of the humidity sensor is disconnected, and the condenser 4 is turned off, thereby saving energy.

[0034] In summary, the utility model can ensure low temperature, low humidity and low dust in the indoor environment of the inverter, thereby extending the service life of the inverter.

Claims

1. A frequency converter room, comprising a ventilation inlet and a ventilation outlet arranged on a wall (1) of the frequency converter room and a ventilator arranged in the frequency converter room; characterized in that: An air filter chamber (2) is provided outside the ventilation inlet, and an air outlet duct (3) is provided at the ventilation outlet; The air filter chamber (2) is cylindrical, and an air inlet (21) is provided on one end surface of the cylinder, and the air inlet (21) is connected to the ventilation pipe (22); an air outlet (23) is provided on the other end surface of the cylinder; a condenser (4) is provided between the ventilation pipe (22) and the air outlet (23), a water cooler (5) is wound around the ventilation pipe (22), and several layers of filter screens (6) are provided outside the air inlet (21); a drain outlet is provided on the lower cylinder corresponding to the condenser (4).

2. The inverter room according to claim 1, characterized in that: The ventilation pipe (22) is funnel-shaped and includes a variable diameter section and a constant diameter section; the end of the variable diameter section coincides with the air inlet (21), and the end of the constant diameter section is flush with the air outlet (23).

3. The frequency converter room according to claim 2, characterized in that: The condenser (4) is wound around the equal-diameter section of the ventilation pipe (22).

4. The inverter room according to claim 1, characterized in that: A temperature sensor is provided in the frequency conversion chamber, and the temperature sensor is interlocked with the water cooler (5).

5. The inverter room according to claim 1, characterized in that: A humidity sensor is provided in the frequency conversion chamber, and the humidity sensor is interlocked with the condenser (4).

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