CN207897287U - Inverter and its radiator - Google Patents

Abstract

The utility model discloses an inverter and a heat dissipation device thereof. The heat dissipation device of the inverter comprises a casing, a first cavity located in the casing, and a plurality of closed second cavities. The first A heat exchanger, a centrifugal fan and a radiator are arranged in the cavity; the air in each second cavity can exchange heat with the air in the first cavity through the heat exchanger. The centrifugal fan promotes air circulation, and the air in the first cavity is discharged from the first cavity after passing through the radiator, thereby realizing the cooling of the first cavity. At the same time, the wind blown from the air outlet of the centrifugal fan is blown to the heat exchanger to exchange heat with the air in the second cavity, so as to cool down the second cavity. In this way, the use of the heat exchanger and the radiator simultaneously realizes the cooling of the first cavity and the second cavity, which greatly improves the heat dissipation efficiency.

Description

Inverter and its cooling device

technical field

The utility model relates to the technical field of inverters, in particular to an inverter and a cooling device thereof.

Background technique

Existing inverter cooling technology solutions are generally divided into at least two chambers, one with a low protection level and the other with a high protection level. The low protection level chamber contains at least one choke coil or transformer, and contains power supply components. Cooling unit for heat dissipation. The high-protection chamber contains components that are sensitive to humidity and dust.

However, the fan in the prior art has not been utilized to the maximum extent, and the reactor needs to be potted. The wind cannot directly dissipate heat to the reactor, but indirectly dissipates heat. The heat dissipation efficiency is not high, and the weight is relatively large.

To sum up, how to effectively improve the heat dissipation efficiency of the inverter is an urgent problem to be solved by those skilled in the art.

Utility model content

In view of this, the first purpose of the present utility model is to provide a heat sink for the inverter, the structural design of the heat sink for the inverter can effectively improve the heat dissipation efficiency of the inverter, and the second object of the present utility model is One object is to provide an inverter including the above inverter heat sink.

In order to achieve the above-mentioned first purpose, the utility model provides the following technical solutions:

A heat dissipation device for an inverter, comprising a housing, a first cavity located in the housing and a plurality of closed second cavities, a heat exchanger, a centrifugal fan and a radiator are arranged in the first cavity ;

The air in each second cavity can exchange heat with the air in the first cavity through the heat exchanger.

Preferably, in the heat dissipation device of the above-mentioned inverter, there are multiple heat exchangers, and the multiple heat exchangers correspond to the multiple second cavities one by one, and each of the second cavities All the air can exchange heat with the air in the first cavity through one of the heat exchangers.

Preferably, in the above-mentioned heat sink for the inverter, the magnetic element of the inverter is arranged in one of the second cavities, and the PCB board of the inverter is arranged in the other second cavity.

Preferably, in the heat dissipation device of the above-mentioned inverter, the number of the second cavity and the number of the heat exchangers are both two.

Preferably, in the heat dissipation device of the above-mentioned inverter, at least one of the second cavities is provided with a fan.

Preferably, in the heat dissipation device of the above-mentioned inverter, the air outside the casing enters the first cavity through the centrifugal fan, and the air in the first cavity can be discharged from the first cavity through the radiator body.

Preferably, in the above-mentioned heat dissipation device for the inverter, a third cavity is further provided in the housing, and a heat dissipation through hole communicating with the outside of the housing is provided on the wall of the third cavity.

An inverter, comprising the heat dissipation device described in any one of the above.

The heat dissipation device of the inverter provided by the utility model comprises a casing, a first cavity and a plurality of second cavities, wherein the first cavity and the plurality of second cavities are all located in the casing, and the inside of the casing is formed by a partition The interior of the housing is divided into a first cavity and a plurality of second cavities. Wherein the plurality of second cavities are all closed. A heat exchanger, a centrifugal fan and a radiator are arranged in the first cavity. The air in the first cavity can be discharged from the first cavity through the radiator. The wind blown from the air outlet of the centrifugal fan can blow to the heat exchanger and radiator. Moreover, the air in each second cavity can exchange heat with the air in the first cavity through the heat exchanger.

When using the heat sink of the inverter provided by the utility model, the devices that are easily affected by dust and moisture can be placed in the second cavity, and the devices that are not easily affected by dust and moisture can be placed in the first cavity. The fan promotes air circulation, and the air in the first cavity is discharged out of the first cavity after passing through the radiator, thereby realizing the cooling of the first cavity. At the same time, the wind blown from the air outlet of the centrifugal fan is blown to the heat exchanger to exchange heat with the air in the second cavity, so as to cool down the second cavity. In this way, the use of the heat exchanger and the radiator simultaneously realizes the cooling of the first cavity and the second cavity, which greatly improves the heat dissipation efficiency.

In order to achieve the above-mentioned second purpose, the utility model also provides an inverter, which includes any one of the heat-dissipating devices mentioned above. Since the above-mentioned cooling device has the above-mentioned technical effects, the inverter with the cooling device should also have corresponding technical effects.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural diagram of a heat sink of an inverter provided by an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of an angle of the heat sink device of the inverter provided by the embodiment of the present invention;

Fig. 3 is a structural schematic view from another angle of the heat dissipation device of the inverter provided by the embodiment of the present invention.

In Figure 1-3:

1-first chamber, 1a-centrifugal fan, 1b-heat exchanger, 1c-radiator, 2-second chamber, 2a-fan, 3-third chamber.

Detailed ways

The first purpose of the utility model is to provide a cooling device for the inverter. The structural design of the cooling device for the inverter can effectively improve the cooling efficiency of the inverter. The second purpose of the utility model is to provide An inverter comprising the above-mentioned heat sink of the inverter.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-Fig. 3, the heat dissipation device of the inverter provided by the embodiment of the utility model includes a housing, a first cavity 1 and a plurality of second cavities 2, wherein the first cavity 1 and the plurality of second cavities The cavity 2 is located in the casing, and the inside of the casing is divided into a first cavity 1 and a plurality of second cavities 2 by a partition wall. Wherein the plurality of second cavities 2 are closed. The first cavity 1 is provided with a heat exchanger 1b, a centrifugal fan 1a and a radiator 1c. The air in the first cavity 1 can be discharged from the first cavity 1 through the radiator 1c. The wind blown from the air outlet of the centrifugal fan 1a can be blown to the heat exchanger 1b and the radiator 1c. Moreover, the air in each second cavity 2 can exchange heat with the air in the first cavity 1 via the heat exchanger 1b.

When applying the heat sink of the inverter provided by the embodiment of the present invention, the devices that are easily affected by dust and moisture can be placed in the second cavity 2, and the devices that are not easily affected by dust and moisture can be placed in the first cavity. In the cavity 1, the centrifugal fan 1a promotes air circulation, and the air in the first cavity 1 is discharged from the first cavity 1 after passing through the radiator 1c, thereby realizing the cooling of the first cavity 1. At the same time, the air blown from the air outlet of the centrifugal fan 1 a blows to the heat exchanger 1 b to exchange heat with the air in the second cavity 2 , so as to cool down the temperature of the second cavity 2 . In this way, the use of the heat exchanger and the radiator 1c simultaneously realizes the cooling of the first cavity 1 and the second cavity 2, greatly improving the heat dissipation efficiency.

Further, the number of heat exchangers 1b can also be multiple, and multiple heat exchangers 1b correspond to multiple second cavities 2 one by one, and the air in each second cavity 2 can be exchanged through one of them. The heater 1b exchanges heat with the air in the first cavity 1 . That is, each second cavity 2 exchanges heat with the air in the first cavity 1 through its corresponding heat exchanger 1b. Of course, multiple second cavities 2 can also exchange heat with the air in the first cavity 1 via the same heat exchanger 1b, which is not limited here.

Specifically, the number of the second chamber 2 and the number of heat exchangers 1b are both two, wherein one of the second chambers 2 exchanges heat with the air in the first chamber 1 through one of the heat exchangers 1b, and the other One second chamber 2 exchanges heat with the air in the first chamber 1 through another heat exchanger 1b. The number of the first cavity 1 is only one.

In the above embodiments, the components of the inverter can be respectively installed in the first cavity 1 and the second cavity 2 according to the environmental requirements of the components of the inverter.

In order to increase the air circulation speed in the second cavity 2, at least one second cavity 2 is provided with a fan 2a. The fan 2a is specifically a turbulence fan, and fans 2a may also be arranged in a plurality of second cavities 2, which is not limited herein.

In another embodiment, the magnetic element of the inverter is arranged in one of the second cavities 2 , and the PCB board of the inverter is arranged in the other second cavity 2 . In this way, the magnetic components are placed separately from the PCB board, which can maximize the use of space. Among them, the reactor does not need potting, which greatly reduces the weight of the inverter.

In addition, the air outside the casing enters the first cavity 1 through the centrifugal fan 1a, and the air in the first cavity 1 can be discharged from the first cavity 1 through the radiator 1c. Wherein, the air inlet of the centrifugal fan 1a is located outside the first cavity 1, and the outlet of the centrifugal fan 1a is located inside the first cavity 1, so as to improve the heat dissipation efficiency of the first cavity 1.

Preferably, in the above-mentioned heat dissipation device, a third cavity is also provided in the housing, and a heat dissipation through hole communicating with the outside of the housing is provided on the wall of the third cavity, so that the wiring of the DC input and the wiring of the AC output can be located in the third cavity.

Based on the heat dissipation device provided in the above embodiments, the present invention further provides an inverter, which includes any one of the heat dissipation devices in the above embodiments. Since the inverter adopts the heat dissipation device in the above-mentioned embodiment, please refer to the above-mentioned embodiment for the beneficial effect of the inverter.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A cooling device for an inverter, characterized in that it includes a housing, a first cavity (1) and a plurality of closed second cavities (2) located in the housing, the first cavity The body (1) is provided with a heat exchanger (1b), a centrifugal fan (1a) and a radiator (1c); The air in each second cavity (2) can exchange heat with the air in the first cavity (1) through the heat exchanger (1b). 2. The heat dissipation device of the inverter according to claim 1, characterized in that, there are multiple heat exchangers (1b), and multiple heat exchangers (1b) and multiple second The cavities (2) are in one-to-one correspondence, and the air in each second cavity (2) can communicate with the air in the first cavity (1) through one of the heat exchangers (1b). heat exchange. 3. The inverter cooling device according to claim 1, characterized in that, one of the second cavities (2) is provided with the magnetic element of the inverter, and the other of the second cavities (2) The PCB board of the inverter is arranged inside. 4. The heat dissipation device of the inverter according to claim 2, characterized in that, the number of the second cavity (2) and the number of the heat exchangers (1b) are both two. 5. The heat dissipation device for an inverter according to claim 1, characterized in that at least one of the second cavities (2) is provided with a fan (2a). 6. The heat dissipation device of the inverter according to claim 1, characterized in that, the air outside the casing enters the first cavity (1) through the centrifugal fan (1a), and the first cavity The air in (1) can be discharged from the first cavity (1) through the radiator (1c). 7. The heat dissipation device of the inverter according to claim 1, wherein a third cavity is also provided in the housing, and a wall communicating with the outside of the housing is provided on the wall of the third cavity. thermal vias. 8. An inverter, characterized by comprising the heat dissipation device according to any one of claims 1-7.