CN219165029U - Heat dissipation auxiliary device for frequency converter - Google Patents

Abstract

The utility model discloses a heat dissipation auxiliary device for a frequency converter, which comprises a frequency converter body, a ventilator is detachably connected to the exhaust port of the frequency converter body, a fan is installed inside the ventilator, and the ventilator The other end of the cylinder is connected with a ventilation pipe, and the other end of the ventilation pipe is connected with a cooling box, and a filter plate is installed inside the cooling box, and a plurality of evenly distributed cooling pipes are installed on the upper end of the filter plate. Pass the hot air from the exhaust port of the inverter body into the inside of the cooling box through the ventilation pipe, so that the hot air can be cooled down into a cold air when the hot air passes through multiple cooling pipes, and then the cold air can pass through the exhaust The air pipe is discharged into the desiccant cylinder, and after being dehumidified by the desiccant, it is discharged from the air inlet of the inverter body to cool it down, so that the device has the function of converting the hot airflow discharged from the inverter into a cold airflow, which is passed into the inverter Cool down the frequency converter internally to achieve the effect of effectively assisting the heat dissipation of the frequency converter.

Description

A heat dissipation auxiliary device for frequency converter

technical field

The utility model relates to the technical field of frequency converters, in particular to a cooling auxiliary device for frequency converters.

Background technique

Inverter (Var i ab l e-frequency Drive, VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's operating power supply. The inverter is mainly composed of rectifiers (AC to DC ), filter, inverter (DC to AC), brake unit, drive unit, detection unit, micro-processing unit, etc. The frequency converter adjusts the voltage and frequency of the output power by switching off the internal IGBT, according to the actual needs of the motor To provide the required power supply voltage, and then achieve the purpose of energy saving and speed regulation. In addition, the inverter also has many protection functions, such as overcurrent, overvoltage, overload protection and so on.

Because there are a large number of integrated circuit devices in the inverter, and when the inverter is running, the internal equipment will generate a lot of heat. Because high temperature is the enemy of integrated circuits, high temperature will not only lead to unstable operation of the system, but also shorten the service life. It is even possible to burn some components. Since the built-in heat dissipation device inside the inverter is not enough to achieve a suitable heat dissipation effect when the frequency converter runs for a long time in high temperature weather, it is necessary to add a heat dissipation auxiliary device for auxiliary heat dissipation.

At present, most of the auxiliary heat dissipation devices of frequency converters are equipped with heat dissipation plates or cooling fans (radiators) on the appearance of frequency converters for auxiliary heat dissipation. An airtight pad is installed on the side where the heat sink is in contact with the inverter. The airtight pad surrounds the air outlet of the inverter. The heat sink absorbs the hot air inside the inverter for auxiliary heat dissipation, and only discharges the heat, resulting in The auxiliary heat dissipation effect is not obvious, so it needs to be improved.

Utility model content

The purpose of this utility model is to provide a heat dissipation auxiliary device for frequency converters, which can convert the hot air flow discharged from the frequency converter into cold air flow, and pass it into the frequency converter to cool down the frequency converter, so as to effectively assist the heat dissipation effect of the frequency converter specialty.

In order to achieve the above purpose, the utility model provides the following technical solutions: a heat dissipation auxiliary device for frequency converters, including a frequency converter body, the exhaust port of the frequency converter body is detachably connected with a ventilator, and the ventilator A fan is installed inside, the other end of the ventilator is connected with a ventilation pipe, the other end of the ventilation pipe is connected with a cooling box, and a filter plate is installed inside the cooling box. A uniformly distributed cooling pipe, one end of the cooling pipe on the left side runs through the outer wall of the cooling box and communicates with a cooling box installed on the bottom surface of the cooling box;

The right side wall of the cooling box is communicated with an exhaust pipe located above the filter plate, the other end of the exhaust pipe is detachably connected with a desiccant cylinder, and the other end of the desiccant cylinder is communicated with a bellows. The other end of the bellows communicates with the air inlet of the inverter body.

In order to make the plurality of cooling pipes communicate with each other, preferably, as a heat dissipation auxiliary device for frequency converters of the present invention, connecting pipes are connected between two of the plurality of cooling pipes.

In order to facilitate the discharge of the water at the bottom of the cooling box, as a heat dissipation auxiliary device for frequency converters of the present invention, it is preferred that the inner bottom end surface of the cooling box is inclined, and the outer wall communicates with a channel located below the filter plate The drainpipe is provided with a valve on the outer wall of the drainpipe.

In order to facilitate the water in the refrigeration box to be pumped into the cooling pipe, as a heat dissipation auxiliary device for frequency converters of the present invention, one end of the cooling pipe on the right side runs through the cooling box and the outer wall of the refrigeration box in sequence and communicates There is a water pump installed on the inner bottom surface of the refrigeration box.

In order to facilitate the cooling of the water in the refrigeration box, as a heat dissipation auxiliary device for frequency converters of the present invention, it is preferable that the outer wall of the refrigeration box is penetrated and installed with semiconductor cooling chips.

In order to facilitate the cooling of the hot air flowing into the cooling box, as a heat dissipation auxiliary device for frequency converters of the present invention, preferably, the ventilation pipe is located on the left side of the plurality of cooling pipes.

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

When the utility model firstly uses the device, first start the semiconductor refrigeration sheet to cool the water in the refrigeration box, and then start the fan to pass the hot air from the exhaust port of the inverter body into the inside of the cooling box through the ventilation pipe, and at the same time Start the water pump to pump the cold water in the refrigeration box into multiple cooling pipes, then the hot air flow can be cooled down into cold air when the hot air passes through the multiple cooling pipes, and then the cold air can be discharged into the desiccant through the exhaust pipe In the cylinder, after being dehumidified by the desiccant, it is discharged from the air inlet of the inverter body, thereby cooling the inverter body. Inverter cooling, so as to achieve the effect of effectively assisting the inverter to dissipate heat.

Description of drawings

Fig. 1 is the overall sectional view of the utility model;

Fig. 2 is the left sectional view of the cooling box of the present utility model;

Fig. 3 is a structural diagram of the desiccant cartridge of the present invention.

In the figure: 1. Inverter body; 2. Ventilator; 201. Fan; 202. Ventilation pipe; 3. Cooling box; 301. Filter plate; 302. Drainage pipe; 4. Cooling pipe; 401. Connecting pipe; 5. Refrigeration box; 501, semiconductor refrigeration chip; 502, water pump; 6, exhaust pipe; 7, desiccant cylinder; 8, bellows.

Detailed ways

Please refer to Figures 1 to 3, a heat dissipation auxiliary device for frequency converters, including a frequency converter body 1, the exhaust port of the frequency converter body 1 is detachably connected to a ventilator 2, and a fan 201 is installed inside the ventilator 2 The other end of the ventilator 2 is communicated with a ventilation pipe 202, and the other end of the ventilation pipe 202 is communicated with a cooling box 3. A filter plate 301 is installed inside the cooling box 3, and a plurality of evenly distributed cooling chambers are installed on the upper surface of the filter plate 301. The pipe 4, one end of the cooling pipe 4 on the left side runs through the outer wall of the cooling box 3 and communicates with the refrigeration box 5 installed on the bottom surface of the cooling box 3;

The right side wall of the cooling box 3 is communicated with an exhaust pipe 6 located above the filter plate 301, and the other end of the exhaust pipe 6 is detachably connected with a desiccant cylinder 7, and the other end of the desiccant cylinder 7 is connected with a corrugated pipe 8. The other end of the pipe 8 communicates with the air inlet of the inverter body 1 .

In this embodiment: when using the device, first start the semiconductor cooling plate 501 to cool the water in the refrigeration box 5, and then start the fan 201 to pass the hot air from the exhaust port of the inverter body 1 through the ventilation pipe 202 Inside the cooling box 3, start the water pump 502 at the same time, pump the cold water in the cooling box 5 into the plurality of cooling pipes 4, and then the hot air flow can be cooled into a cold air flow when the hot air flow passes through the plurality of cooling pipes 4. Then the cold air flow can be discharged into the desiccant cylinder 7 through the exhaust pipe 6, and then discharged from the air inlet of the inverter body 1 after being dehumidified by the desiccant, thereby cooling the inverter body 1. The hot air flow is transformed into a cold air flow, which is passed into the inverter to cool down the inverter, so as to effectively assist the inverter to dissipate heat.

As a technical optimization solution of the present utility model, connecting pipes 401 are connected between two cooling pipes 4 .

In this embodiment: by installing the connecting pipe 401, multiple cooling pipes 4 can be connected, so that the water flow entering from one end of the cooling pipe 4 on the right can be discharged through one end of the cooling pipe 4 on the left.

As a technical optimization scheme of the utility model, the inner bottom end surface of the cooling box 3 is inclined, and the outer wall is connected with the drain pipe 302 located below the filter plate 301, and the outer wall of the drain pipe 302 is equipped with a valve.

In this embodiment: by opening the valve, the drain pipe 302 can drain the water at the bottom of the cooling box 3 .

As a technical optimization solution of the present utility model, one end of the cooling pipe 4 on the right runs through the outer walls of the cooling box 3 and the refrigeration box 5 in turn, and communicates with a water pump 502 installed on the inner bottom surface of the refrigeration box 5 .

In this embodiment: by starting the water pump 502 , it is convenient to pump the water cooled inside the refrigeration box 5 into the cooling pipe 4 .

As a technical optimization scheme of the present invention, the outer wall of the refrigeration box 5 is penetrated with a semiconductor refrigeration sheet 501 installed.

In this embodiment: by installing the semiconductor cooling chip 501, it is convenient to cool the water in the cooling box 5.

As a technical optimization solution of the present invention, the ventilation pipe 202 is located on the left side of the plurality of cooling pipes 4 .

In this embodiment: by setting the ventilation pipe 202 on the left side of the plurality of cooling pipes 4, when the ventilation pipe 202 flows the hot air into the inside of the cooling box 3, the plurality of cooling pipes 4 can cool down the hot air.

Working principle: First, when using the device, first move the device to the outside of the inverter body 1, connect the ventilator 2 to the exhaust port of the inverter body 1, and connect the bellows 8 to the inverter body 1 Connect the air inlet of the inverter body 1, then start the semiconductor cooling chip 501 to cool the water in the cooling box 5, then start the fan 201, and pass the hot air from the exhaust port of the inverter body 1 into the cooling box 3 through the ventilation pipe 202 At the same time, start the water pump 502 to pump the cold water in the refrigeration box 5 into the cooling pipe 4 on the right side, and then the cooling water flows into the plurality of cooling pipes 4 through the connecting pipe 401, so that the hot air flow passes through the plurality of cooling pipes 4 During the process, the hot air flow can be cooled down into a cold air flow, and then the cold air flow can be discharged into the desiccant cylinder 7 through the exhaust pipe 6, and discharged from the air inlet of the inverter body 1 after being dehumidified by the desiccant, thereby Cool down the inverter body 1. During this period, the water flowing through the cooling pipe 4 on the left can flow back into the refrigeration box 5 for circulating cooling. When the cooling pipe 4 absorbs heat, the outer wall of the cooling pipe 4 will produce The water droplets drop to the bottom of the cooling box 3 along the cooling pipe 4, and when drainage is required, the staff can discharge the water at the bottom of the cooling box 3 by opening the valve.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (6)

1. The utility model provides a heat dissipation auxiliary device for converter, includes converter body (1), its characterized in that: the utility model discloses a frequency converter, including converter body (1), ventilation tube (2), ventilation tube (202), cooling box (3), filter plate (301) are installed to the inside of ventilation port detachable connection of converter body (1), the internally mounted of ventilation tube (2) has fan (201), the other end intercommunication of ventilation tube (2) has ventilation tube (202), the other end intercommunication of ventilation tube (202), the internally mounted of cooling box (3) has filter plate (301), a plurality of evenly distributed's cooling tube (4) are installed to the up end of filter plate (301), and the one end that is located left side cooling tube (4) runs through the lateral wall of cooling box (3) and communicates there is refrigeration case (5) of installing in cooling box (3) bottom terminal surface;

the right side wall of cooling tank (3) communicates there is blast pipe (6) that are located filter plate (301) top, the other end of blast pipe (6) can be dismantled and be connected with drier section of thick bamboo (7), the other end intercommunication of drier section of thick bamboo (7) has bellows (8), the other end of bellows (8) communicates with the air inlet of converter body (1).

2. A heat dissipation assisting device for a frequency converter according to claim 1, characterized in that: and connecting pipes (401) are communicated between every two of the plurality of cooling pipes (4).

3. A heat dissipation assisting device for a frequency converter according to claim 1, characterized in that: the inside bottom surface of cooler bin (3) is the slope setting, and lateral wall intercommunication has drain pipe (302) that are located filter plate (301) below, the valve is installed to the lateral wall of drain pipe (302).

4. A heat dissipation assisting device for a frequency converter according to claim 1, characterized in that: one end of the cooling pipe (4) positioned on the right side sequentially penetrates through the outer side walls of the cooling box (3) and the refrigerating box (5) and is communicated with a water pump (502) arranged on the inner bottom end surface of the refrigerating box (5).

5. A heat dissipation assisting device for a frequency converter according to claim 1, characterized in that: the outer side wall of the refrigerating box (5) is provided with a semiconductor refrigerating sheet (501) in a penetrating way.

6. A heat dissipation assisting device for a frequency converter according to claim 1, characterized in that: the ventilation pipe (202) is positioned on the left side of the plurality of cooling pipes (4).

Images