CN115568166A - A cooling device for an inverter - Google Patents

Abstract

The invention relates to the technical field of inverter control, in particular to a cooling device for an inverter. Including the first inverter and the second inverter, the first inverter and the second inverter both include: a box; a DC cabinet, the DC cabinet is set in the box; the first inverter cabinet, the first inverter The cabinet is arranged in the box and the first inverter cabinet is arranged on the side close to the DC cabinet; the second inverter cabinet is arranged in the box and the second inverter cabinet is arranged on the side close to the first inverter cabinet One side; the load-bearing layer, the load-bearing layer is set in the first inverter cabinet and the second inverter cabinet; the cooling structure, the cooling structure is set in the load-bearing layer, and an air inlet is opened on the cooling structure, and the cooling structure is used to reduce The temperature of the air entering the first inverter cabinet and the second inverter cabinet. The invention can increase the utilization rate of equipment, reduce the operating environment temperature of the equipment, improve the operating conditions of the equipment, increase the service life of the equipment, and increase the guarantee for the safe and stable operation of the equipment.

Description

A cooling device for an inverter

technical field

The invention relates to the technical field of inverter control, in particular to a cooling device for an inverter.

Background technique

Inverter, also known as inverter power supply, is a power conversion device that can convert 12V or 24V DC into 240V, 50Hz AC or other types of AC. The AC power output by it can be used for various equipment, satisfying the AC power needs of users in mobile power supply places or areas without electricity to the greatest extent. With an inverter, DC power (battery, switching power supply, fuel cell, etc.) can be converted into AC power to provide stable and reliable power consumption guarantee for electrical appliances, such as notebook computers, mobile phones, handheld PCs, digital cameras, and various instruments; Inverters can also be used in conjunction with generators, which can effectively save fuel and reduce noise; in the fields of wind energy and solar energy, inverters are even more essential. Small inverters can also use cars, ships, and portable power supply equipment to provide AC power in the field. The working principle of the inverter is to control the operation of the entire system through the control circuit. The inverter circuit completes the function of converting direct current into alternating current, and the filter circuit is used to filter out unnecessary signals. The work of the inverter circuit can also be refined as follows: firstly, the oscillating circuit converts direct current into alternating current; secondly, the coil step-up transforms irregular alternating current into square wave alternating current; finally, rectification makes alternating current change from square wave to sine wave alternating current.

However, in the existing technology, due to geographical problems, the inverters of some power plants, such as Xinjiang, have high summer temperatures and low air humidity, and the ambient temperature of the inverters that are often removed from the shelf can reach 50 degrees. It is necessary to cool down the equipment. However, the cooling methods in the prior art are all cooling down through intelligent adjustment and control. They are all based on the way of adjusting the temperature inside the equipment itself, and do not adjust the influence of the external environment. Therefore, how to provide a cooling device for an inverter is a technical problem that those skilled in the art urgently need to solve.

Contents of the invention

The purpose of the present invention is to provide a cooling device for the inverter, by using a turbo fan in conjunction with the inverter fan of the power station, and installing a load-bearing layer that can hold the ice box at the air inlet of the inverter. A cooling structure is added to the load-bearing layer. When the temperature is high in summer, the cooling structure can be put in, and the wind is sucked into the cooling structure from the air inlet of the cooling structure by the fan to reduce the temperature of the incoming air to achieve the effect of reducing the ambient temperature of the equipment. The invention can effectively increase the utilization rate of equipment, reduce the operating environment temperature of the equipment, improve the operating conditions of the equipment, increase the service life of the equipment, and increase the guarantee for the safe and stable operation of the equipment.

The present invention improves the existing technology. Due to geographical problems, the inverters of some power plants have high temperature and low air humidity in summer, and the ambient temperature of the inverters often can reach 50 degrees. In order to ensure the safe and stable operation of the equipment, It is necessary to cool down the equipment. However, in the prior art, it is based on the way of adjusting the temperature inside the equipment itself, and there is no problem with the way of adjusting the influence of the external environment. A turbo fan, and a load-bearing layer that can hold an ice box is installed at the air inlet of the inverter, and a cooling structure is added to the load-bearing layer. When the temperature is high in summer, the cooling structure can be put in, and the wind will Inhale the cooling structure from the air inlet of the cooling structure to reduce the temperature of the air intake to achieve the effect of reducing the ambient temperature of the equipment.

In order to achieve the above object, the present invention provides the following technical solutions:

A cooling device for an inverter, applied to a containerized inverter, comprising a first inverter and a second inverter, the first inverter and the second inverter both include :

box;

A DC cabinet, the DC cabinet is arranged in the box;

A first inverter cabinet, the first inverter cabinet is arranged in the box and the first inverter cabinet is arranged on a side close to the DC cabinet;

A second inverter cabinet, the second inverter cabinet is arranged in the box and the second inverter cabinet is arranged on a side close to the first inverter cabinet;

a load-carrying layer, the load-carrying layer is arranged in the first inverter cabinet and the second inverter cabinet;

A cooling structure, the cooling structure is arranged in the load-bearing layer, and an air inlet is opened on the cooling structure, and the cooling structure is used to reduce the air entering the first inverter cabinet and the second inverter cabinet. Inlet air temperature.

In some embodiments of the present application, the first inverter cabinet is provided with first air inlets, and there are three first air inlets;

The second inverter cabinet is provided with a second air inlet, and there are three second air inlets;

The carrying layer is disposed close to the first air inlet and the second air inlet.

In some embodiments of the present application, the first inverter and the second inverter further include:

An AC cabinet, the AC cabinet is arranged in the box and the AC cabinet is arranged on a side close to the second inverter cabinet;

There are two AC cabinet air outlets on the AC cabinet.

In some embodiments of the present application, the first inverter and the second inverter further include:

A temperature sensor, the temperature sensor is arranged in the box, and the temperature sensor is arranged on the top of the box, the temperature sensor is used to detect the temperature P in the box in real time;

A controller, the controller is electrically connected to the temperature sensor, and the controller is used to control the turbo blower to suck wind into the cooling structure from the air inlet of the cooling structure.

In some embodiments of the present application, the controller is set with a preset temperature matrix T0 and a preset fan power matrix A, and for the preset fan power matrix A, set A (A1, A2, A3, A4), where A1 is the first preset fan power, A2 is the second preset fan power, A3 is the third preset fan power, A4 is the fourth preset fan power, and A1<A2<A3<A4;

For the preset temperature matrix T0, set T0 (T01, T02, T03, T04), wherein T01 is the first preset temperature, T02 is the second preset temperature, T03 is the third preset temperature, and T04 is The fourth preset temperature, and T01<T02<T03<T04;

The controller is used to select the corresponding fan power as the control power when the turbo fan is working according to the relationship between P and the preset temperature matrix T0;

When P0<T01, select the first preset fan power A1 as the control power when the turbo fan is working;

When T01≤P0<T02, select the second preset fan power A2 as the control power when the turbo fan is working;

When T02≤P0<T03, select the third preset fan power A3 as the control power when the turbo fan is working;

When T03≤P0<T04, the fourth preset fan power A4 is selected as the control power when the turbo fan is working.

In some embodiments of the present application, the temperature sensor is electrically connected to the controller, and the controller is electrically connected to the turbo blower.

In some embodiments of the present application, a detachable blue ice box is arranged in the cooling structure.

In some embodiments of the present application, the cross-sectional area of the carrying layer is not more than 1/4 of the air intake areas of the first air inlet and the second air inlet.

In some embodiments of the present application, there are two air outlets of the DC cabinet provided on the DC cabinet.

In some embodiments of the present application, the second inverter is disposed opposite to the first inverter, and the first inverter and the second inverter are independent of each other.

Compared with the prior art, the cooling device for the inverter provided by the present invention has the following beneficial effects:

The present invention adopts an indirect cooling method, cooperates with the inverter fan of the power station to use a turbo fan, and through the inverter to circulate air outside, the present invention installs a cooling structure that can accommodate blue ice boxes at the air inlet of the inverter. When the temperature is high in summer, the blue ice box is put into the cooling structure, and the wind is sucked from the air inlet of the cooling structure through the turbo fan to reduce the air temperature of the air inlet to reduce the ambient temperature of the equipment. The invention has high efficiency, high temperature adaptability and simplicity.

Description of drawings

Fig. 1 is a structural schematic diagram of a first inverter and a second inverter of the present invention;

Fig. 2 is a structural schematic diagram of a cooling device for an inverter of the present invention;

Fig. 3 is the structural representation of the cooling structure used in the present invention;

Fig. 4 is the physical figure of the cooling structure used in the present invention;

Fig. 5 is a structural side view of the first inverter and the second inverter of the present invention;

Fig. 6 is a schematic diagram of the blue ice ice box used in the present invention.

In the figure: 1001, the first inverter; 1002, the second inverter; 101, the cabinet; 102, the DC cabinet; 103, the first inverter cabinet; 104, the second inverter cabinet; 105, the AC cabinet; 106. Cooling structure; 107. Containment layer; 108. First air inlet; 109. DC cabinet air outlet; 110. AC cabinet air outlet; 111. Second air inlet; 201. Temperature sensor; 202. Controller; 203. Turbine fan.

detailed description

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of this application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the application.

The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

In the existing technology, due to geographical problems, such as Xinjiang, the inverters of some power plants have high summer temperature and low air humidity, and the ambient temperature of the inverters often can reach 50 degrees. In order to ensure the safe and stable operation of the equipment, it is necessary to To cool down the equipment, however, the cooling methods in the prior art are all cooling down through intelligent adjustment and control, which are all based on considering the internal temperature of the equipment itself, and do not adjust the influence of the external environment. Way.

Therefore, the present invention provides a cooling device for the inverter, by using a turbo fan in conjunction with the inverter fan of the power station, and installing a load-bearing layer that can hold the ice box at the air inlet of the inverter. A cooling structure is added to the load-bearing layer. When the temperature is high in summer, the cooling structure can be put in, and the wind is sucked into the cooling structure from the air inlet of the cooling structure by the fan to reduce the temperature of the incoming air to achieve the effect of reducing the ambient temperature of the equipment. The invention can effectively increase the utilization rate of equipment, reduce the operating environment temperature of the equipment, improve the operating conditions of the equipment, increase the service life of the equipment, and increase the guarantee for the safe and stable operation of the equipment.

Referring to Figures 1-4, the disclosed embodiment of the present invention provides a cooling device for inverters, which is applied to container-type inverters, including a first inverter 1001 and a second inverter 1002, Both the first inverter 1001 and the second inverter 1002 include:

Box 101;

DC cabinet 102, the DC cabinet 102 is arranged in the box body 101;

The first inverter cabinet 103, the first inverter cabinet 103 is arranged in the box body 101 and the first inverter cabinet 103 is arranged on a side close to the DC cabinet 102;

The second inverter cabinet 104, the second inverter cabinet 104 is arranged in the box body 101 and the second inverter cabinet 104 is arranged on a side close to the first inverter cabinet 103;

The load-bearing layer 107, the load-bearing layer 107 is arranged in the first inverter cabinet 103 and the second inverter cabinet 104;

Cooling structure 106. The cooling structure 106 is arranged in the load-bearing layer 107. The cooling structure 106 is provided with an air inlet. The cooling structure 106 is used to reduce the temperature of the air entering the first inverter cabinet 103 and the second inverter cabinet 104.

In a specific embodiment of the present application, the first inverter cabinet 103 is provided with first air inlets 108, and there are three first air inlets 108;

The second inverter cabinet 104 is provided with a second air inlet 111, and there are three second air inlets 111;

The containing layer 107 is disposed near the first air inlet 108 and the second air inlet 111 .

In a specific embodiment of the present application, the first inverter 1001 and the second inverter 1002 further include:

AC cabinet 105, the AC cabinet 105 is arranged in the box body 101 and the AC cabinet 105 is arranged on a side close to the second inverter cabinet 104;

The AC cabinet 105 is provided with an AC cabinet air outlet 109, and there are two AC cabinet air outlets 109.

In a specific embodiment of the present application, as shown in FIG. 5, the first inverter 1001 and the second inverter 1002 further include:

A temperature sensor 201, the temperature sensor 201 is arranged in the box body 101, and the temperature sensor 201 is arranged on the top of the box body 101, and the temperature sensor 201 is used to detect the temperature P in the box body 101 in real time;

A controller 202 , the controller 202 is electrically connected to the temperature sensor 201 , and the controller 202 is used to control the turbo blower 203 to draw wind into the cooling structure 106 from the air inlet of the cooling structure 106 .

In a specific embodiment of the present application, a preset temperature matrix T0 and a preset fan power matrix A are set in the controller 202. For the preset fan power matrix A, A (A1, A2, A3, A4 ), wherein A1 is the first preset fan power, A2 is the second preset fan power, A3 is the third preset fan power, A4 is the fourth preset fan power, and A1<A2<A3<A4;

For the preset temperature matrix T0, set T0 (T01, T02, T03, T04), where T01 is the first preset temperature, T02 is the second preset temperature, T03 is the third preset temperature, and T04 is the fourth Preset temperature, and T01<T02<T03<T04;

The controller 202 is used to select the corresponding fan power as the control power when the turbo fan 203 is working according to the relationship between P and the preset temperature matrix T0;

When P0<T01, select the first preset fan power A1 as the control power when the turbo fan 203 is working;

When T01≤P0<T02, select the second preset fan power A2 as the control power when the turbo fan 203 is working;

When T02≤P0<T03, select the third preset fan power A3 as the control power when the turbo fan 203 is working;

When T03≤P0<T04, the fourth preset fan power A4 is selected as the control power when the turbo fan 203 is working.

In a specific embodiment of the present application, the temperature sensor 201 is electrically connected to the controller 202 , and the controller 202 is electrically connected to the turbo blower 203 .

In a specific embodiment of the present application, as shown in FIG. 6 , a detachable blue ice box is arranged in the cooling structure 106 .

In a specific embodiment of the present application, the cross-sectional area of the carrying layer 107 is no more than 1/4 of the air intake areas of the first air inlet 108 and the second air inlet 111 .

In a specific embodiment of the present application, the DC cabinet 102 is provided with a DC cabinet air outlet 109 , and there are two DC cabinet air outlets 109 .

In a specific embodiment of the present application, the second inverter 1002 is arranged opposite to the first inverter 1001, and the first inverter 1001 and the second inverter 1002 are independent of each other.

According to the technical idea of the present invention, the present invention adopts a turbo fan in cooperation with the inverter fan of the power station, and installs a load-bearing layer that can hold ice boxes at the air inlet of the inverter, and adds a cooling structure in the load-bearing layer, When the temperature is high in summer, the cooling structure can be put in, and the wind is sucked into the cooling structure from the air inlet of the cooling structure by the fan to reduce the temperature of the incoming air to achieve the effect of reducing the ambient temperature of the equipment.

To sum up, the present invention is based on the fact that the inverters of some power plants have regional problems, such as Xinjiang, where the summer temperature is high and the air humidity is low. For stable operation, it is necessary to cool down the equipment as a technical problem. The present invention aims to increase the availability of the equipment, reduce the operating environment temperature of the equipment, improve the operating conditions of the equipment, increase the life of the equipment, and increase the guarantee for the safe and stable operation of the equipment. The present invention adopts an indirect cooling method, cooperates with the inverter fan of the power station to use a turbo fan, and through the inverter to circulate air outside, the present invention installs a cooling structure that can accommodate blue ice boxes at the air inlet of the inverter. When the temperature is high in summer, the blue ice box is put into the cooling structure, and the wind is sucked from the air inlet of the cooling structure through the turbo fan to reduce the air temperature of the air inlet to reduce the ambient temperature of the equipment. The invention has high efficiency, high temperature adaptability and simplicity.

The above description is only an implementation example of the present invention, but the scope of the present invention cannot be limited with this, and all structural changes done according to the present invention, as long as they do not lose the gist of the present invention, all should be considered as falling into the present invention. restricted within the scope of invention protection.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process and related descriptions of the above-described system can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

It should be noted that the system provided by the above-mentioned embodiments is only illustrated by dividing the above-mentioned functional modules. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs, that is, the embodiment of the present invention The modules or steps in the above-mentioned embodiment can be further decomposed or combined. For example, the modules in the above-mentioned embodiments can be combined into one module, and can also be further divided into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only used to distinguish each module or step, and are not regarded as improperly limiting the present invention.

Those skilled in the art should be able to realize that the modules and method steps described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two, and that the programs corresponding to the software modules and method steps Can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or known in the technical field any other form of storage medium. In order to clearly illustrate the interchangeability of electronic hardware and software, the composition and steps of each example have been generally described in terms of functions in the above description. Whether these functions are performed by electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may implement the described functionality using different methods for each particular application, but such implementation should not be considered as exceeding the scope of the present invention.

The term "comprising" or any other similar term is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus/apparatus comprising a set of elements includes not only those elements but also other elements not expressly listed, or Also included are elements inherent in these processes, methods, articles, or devices/devices.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings, however, those skilled in the art will easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (10)

1. A cooling device for inverters, which is applied to containerized inverters, characterized in that it includes a first inverter and a second inverter, the first inverter and the second inverter Both inverters include: box; A DC cabinet, the DC cabinet is arranged in the box; A first inverter cabinet, the first inverter cabinet is arranged in the box and the first inverter cabinet is arranged on a side close to the DC cabinet; A second inverter cabinet, the second inverter cabinet is arranged in the box and the second inverter cabinet is arranged on a side close to the first inverter cabinet; a load-carrying layer, the load-carrying layer is arranged in the first inverter cabinet and the second inverter cabinet; A cooling structure, the cooling structure is arranged in the load-bearing layer, and an air inlet is opened on the cooling structure, and the cooling structure is used to reduce the air entering the first inverter cabinet and the second inverter cabinet. Inlet air temperature. 2. A cooling device for an inverter according to claim 1, characterized in that: The first inverter cabinet is provided with a first air inlet, and there are three first air inlets; The second inverter cabinet is provided with a second air inlet, and there are three second air inlets; The carrying layer is disposed close to the first air inlet and the second air inlet. 3. A cooling device for an inverter according to claim 2, wherein the first inverter and the second inverter further comprise: An AC cabinet, the AC cabinet is arranged in the box and the AC cabinet is arranged on a side close to the second inverter cabinet; There are two AC cabinet air outlets on the AC cabinet. 4. A cooling device for an inverter according to claim 1, wherein the first inverter and the second inverter further comprise: A temperature sensor, the temperature sensor is arranged in the box, and the temperature sensor is arranged on the top of the box, the temperature sensor is used to detect the temperature P in the box in real time; A controller, the controller is electrically connected to the temperature sensor, and the controller is used to control the turbo blower to suck wind into the cooling structure from the air inlet of the cooling structure. 5. A cooling device for an inverter according to claim 4, characterized in that: The controller is set with a preset temperature matrix T0 and a preset fan power matrix A, and for the preset fan power matrix A, set A (A1, A2, A3, A4), where A1 is the first preset Set fan power, A2 is the second preset fan power, A3 is the third preset fan power, A4 is the fourth preset fan power, and A1<A2<A3<A4; For the preset temperature matrix T0, set T0 (T01, T02, T03, T04), wherein T01 is the first preset temperature, T02 is the second preset temperature, T03 is the third preset temperature, and T04 is The fourth preset temperature, and T01<T02<T03<T04; The controller is used to select the corresponding fan power as the control power when the turbo fan is working according to the relationship between P and the preset temperature matrix T0; When P0<T01, select the first preset fan power A1 as the control power when the turbo fan is working; When T01≤P0<T02, select the second preset fan power A2 as the control power when the turbo fan is working; When T02≤P0<T03, select the third preset fan power A3 as the control power when the turbo fan is working; When T03≤P0<T04, the fourth preset fan power A4 is selected as the control power when the turbo fan is working. 6. A cooling device for an inverter according to claim 4, characterized in that: The temperature sensor is electrically connected to the controller, and the controller is electrically connected to the turbo blower. 7. A cooling device for an inverter according to claim 1, characterized in that: A detachable blue ice box is arranged in the cooling structure. 8. A cooling device for an inverter according to claim 2, characterized in that: The cross-sectional area of the carrying layer is no more than 1/4 of the air intake areas of the first air inlet and the second air inlet. 9. A cooling device for an inverter according to claim 1, characterized in that: The DC cabinet is provided with a DC cabinet air outlet, and the DC cabinet has two air outlets. 10. A cooling device for an inverter according to claim 1, characterized in that: The second inverter is arranged opposite to the first inverter, and the first inverter and the second inverter are independent of each other.

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