CN219228250U - Variable frequency cabinet, compressor and heating ventilation equipment - Google Patents

Abstract

The utility model discloses a frequency conversion cabinet, a compressor and heating and ventilation equipment. The frequency conversion cabinet includes: a cabinet body, the cabinet body is provided with an accommodating cavity, and the accommodating cavity is configured to accommodate electronic devices. The accommodating cavity includes a first cavity and a second cavity; the first radiator is arranged in the first cavity and is configured to reduce the temperature in the first cavity through gas circulation; the second radiator is configured to Dissipate heat from the electronic devices in the second cavity by means of heat conduction; the airflow driver is configured to form heat dissipation in the first cavity that flows through the electronic devices in the first cavity and the first heat sink airflow. According to the frequency conversion cabinet of the embodiment of the utility model, the first cavity and the second cavity are used to place electronic devices, and the first heat sink and the second heat sink are used to dissipate heat from the electronic devices, which can improve the heat dissipation effect of the frequency conversion cabinet and reduce the The noise of the inverter cabinet.

Description

Inverter cabinets, compressors and HVAC equipment

technical field

The utility model relates to the technical field of frequency conversion devices, in particular to a frequency conversion cabinet, a compressor including the frequency conversion cabinet, and HVAC equipment including the frequency conversion cabinet.

Background technique

The frequency conversion cabinet control cabinet, referred to as the frequency conversion cabinet, can be widely used in metallurgy, chemical industry, petroleum, water supply, mining, building materials, motor industries and other pumps, fans, compressors, rolling mills, injection molding machines, belt conveyors and other medium voltage electrical appliances. machine equipment.

The frequency conversion cabinet contains the power components of the frequency conversion cabinet, the control components of the frequency conversion cabinet and the control components of the frequency conversion cabinet. When the frequency conversion cabinet is working, these components will generate heat, and if the heat cannot be effectively discharged, it will directly affect the working environment of these components. This in turn affects its service life.

In addition, in the related art, the air outlet of the frequency conversion cabinet is usually set on the top or the upper part of the front wall of the frequency conversion cabinet. When the frequency conversion cabinet is placed in the air compressor, if the air outlet is located on the top of the frequency conversion cabinet, due to the The air inlet of the air compressor is very close, so the hot air from the air outlet of the inverter cabinet is still sucked by the air compressor, which will cause the internal temperature of the air compressor to be too high, affecting its performance and stability. If the air outlet is located on the upper part of the front wall of the frequency conversion cabinet, since the air outlet of the frequency conversion cabinet must use a filter grille with a certain degree of protection, the hot air from the air outlet of the frequency conversion cabinet will be discharged obliquely downward, so the hot air coming out of the air outlet of the frequency conversion cabinet will still be frequency-converted. The air intake at the lower part of the front wall of the cabinet will inhale air, which will cause the internal temperature of the inverter cabinet to be too high and affect its performance and stability.

Utility model content

One purpose of the utility model is to provide a frequency conversion cabinet, which can improve the cooling effect of the frequency conversion cabinet.

Another object of the present utility model is to provide a compressor, which includes the aforementioned frequency conversion cabinet.

One purpose of the present utility model is to provide a heating and ventilation equipment, which includes the aforementioned compressor or frequency conversion cabinet.

The frequency conversion cabinet according to the embodiment of the present utility model includes: a cabinet body, the cabinet body is provided with an accommodating cavity, the accommodating cavity is configured to accommodate electronic devices, and the accommodating cavity includes a first cavity and a second cavity ; The first heat sink is arranged in the first cavity, and is configured to reduce the temperature in the first cavity by means of gas circulation; the second heat sink is configured to cool the temperature in the second cavity by heat conduction The electronic device dissipates heat; the airflow driver is configured to form a heat dissipation airflow in the first cavity to flow through the electronic device in the first cavity and the first heat sink.

According to the frequency conversion cabinet of the embodiment of the utility model, the first cavity and the second cavity are used to place electronic devices, and the first heat sink and the second heat sink are used to dissipate heat from the electronic devices, which can improve the heat dissipation effect of the frequency conversion cabinet and reduce the The noise of the inverter cabinet.

In addition, the frequency conversion cabinet according to the above-mentioned embodiments of the utility model may also have the following additional technical features:

Optionally, the first cavity is configured as an annular cavity, and the airflow in the first cavity is suitable for circulating under the driving action of the airflow driving member to dissipate heat.

Optionally, the first chamber includes a first flow channel, which is located at the bottom of the cabinet and is configured to guide a cooling airflow from the first side to the second side of the cabinet.

Optionally, the first radiator is arranged in the first flow channel.

Optionally, a discharge port is provided on the bottom wall of the first flow channel to discharge the condensed water in the first cavity.

Optionally, the first cavity further includes a second flow channel, the second flow channel is located on the second side of the cabinet, and guides the heat dissipation air flow from the bottom of the cabinet to the bottom of the cabinet. upper part.

Optionally, the flow channel wall of the first flow channel includes a first flow guide plate close to the second flow channel, and the flow channel wall of the second flow channel includes a second flow guide plate close to the first flow channel plate, the first deflector and the second deflector meet along a direction from the first side toward the second side, and a direction from the first side toward the second side Above, the first deflector is inclined downward relative to the horizontal direction, and the second deflector is inclined upward relative to the horizontal.

Optionally, the first cavity further includes a third flow channel arranged on the upper part of the cabinet, and the third flow channel guides the heat dissipation air flow from the second side of the cabinet to the first side.

Optionally, the first cavity further includes a fourth flow channel disposed on the first side, and the fourth flow channel guides the heat dissipation air flow from above the cabinet to the bottom of the cabinet .

Optionally, the first chamber is configured as an annular shape extending along the peripheral wall of the cabinet inside the cabinet.

Optionally, the first cavity is configured as a closed annular cavity, and the second cavity is separated from the first cavity.

Optionally, the first cavity is disposed in the cabinet close to the backboard of the cabinet.

Optionally, the frequency conversion cabinet further includes a door body connected to the cabinet body and configured to open and close the accommodating cavity. When the door body closes the accommodating cavity, it covers the Describe the second cavity.

Optionally, the second radiator is a parallel flow radiator; and/or the first radiator is an evaporator.

Optionally, the electronic device in the first cavity includes a first electronic device and a second electronic device, the heating power of the first electronic device is smaller than that of the second electronic device, and In the direction of flow, the first electronic device is upstream of the second electronic device.

Optionally, the electronic device includes a third electronic device, the third electronic device is arranged in the second cavity, and the second heat sink is stacked with the third electronic device, so that the first Three electronic components heat dissipation.

Optionally, the second radiator is at least partially disposed in the second cavity; or, the second radiator is disposed on the back of the cabinet, and is connected to at least part of the second cavity The location of the electronic device corresponds.

Optionally, a circuit breaker, a reactor, a capacitor, an IGBT, and a diode are arranged in the accommodating cavity, and the circuit breaker, the reactor, the capacitor, the IGBT, and the diode are electrically connected, and the At least one of the circuit breaker, the reactor, the capacitor, the IGBT and the diode is disposed in the first chamber, and at least one is disposed in the second chamber.

The compressor according to the embodiment of the utility model includes the aforementioned frequency conversion cabinet.

The HVAC equipment according to the embodiment of the utility model includes the aforementioned frequency conversion cabinet; or the aforementioned compressor.

The utility model provides a frequency conversion cabinet, a compressor and HVAC equipment, wherein the frequency conversion cabinet has a first cavity and a second cavity, and adopts different ways to dissipate heat, and can dissipate heat according to the heating power of different devices in the frequency conversion cabinet , the components can reduce the mutual transfer of heat between devices, affect the heat dissipation effect, and can also play a mobile isolation effect to achieve the purpose of anti-interference. In addition, in the compressor and HVAC equipment with this frequency conversion cabinet, due to the frequency conversion The cabinet has high stability, which can improve the stability of compressor operation, reduce the failure rate of HVAC equipment, and improve the working efficiency of HVAC equipment.

Description of drawings

Fig. 1 is a schematic diagram of a frequency conversion cabinet according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a frequency conversion cabinet according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a frequency conversion cabinet according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a frequency conversion cabinet according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of a frequency conversion cabinet according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a frequency conversion cabinet according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a frequency conversion cabinet according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of a frequency conversion cabinet according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of a frequency conversion cabinet according to an embodiment of the present invention.

Reference signs: 100, frequency conversion cabinet; 10, cabinet body; 101, accommodating cavity; 102, first cavity; 1021, first flow channel; 1022, second flow channel; 1023, third flow channel; 1024, fourth Flow channel; 103, second cavity; 11, first radiator; 12, second radiator; 121, first deflector; 122, second deflector; 13, junction box; 14, airflow driving part; 141. First fan; 142. Second fan; 20. Door body; 31. Circuit breaker; 32. Reactor; 33. Capacitor; 34. IGBT; 35. Diode; 36. Transformer; 37. Contactor.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

1 to 9, the frequency conversion cabinet 100 according to the embodiment of the present utility model includes a cabinet body 10, and the cabinet body 10 is provided with an accommodating cavity 101, the accommodating cavity 101 is configured to accommodate electronic devices, and the accommodating cavity 101 includes a second One cavity 102, the first cavity 102 can be set to dissipate heat through gas circulation, in other words, the heat on the electronic devices in the first cavity 102 can be taken away by the circulation of air flow in the first cavity 102, so as to achieve the heat dissipation of the electronic devices Purpose.

Wherein, the first radiator 11 can be set in the first cavity 102, and the first radiator 11 can provide cooling capacity, and when the heat in the first cavity 102 is reduced by means of gas circulation, the first radiator 11 can take The heat in the wind dissipates heat to the airflow in time, so that the airflow can better dissipate heat with the electronic devices in the first chamber 102 , and effectively improve the heat dissipation effect in the first chamber 102 . In other words, the heat exchange between the first heat sink 11 and the electronic devices in the first chamber 102 is realized through the airflow, and the temperature in the first chamber 102 is reduced by means of gas circulation.

In order to promote the flow of air in the first chamber 102, the cabinet 10 can also include an airflow driver 14, which can be configured to drive the airflow in the first chamber 102 to form a heat dissipation airflow, and the heat dissipation airflow can be set to flow through the first chamber 102. Electronic devices in a cavity 102 and the first heat sink 11 . When the airflow passes through the first radiator 11, the heat in the airflow can be exchanged to the first radiator 11 to lower the temperature of the airflow, and the cooling capacity of the first heat exchanger can be absorbed for cooling the first cavity 102 Carry out heat dissipation; when the airflow flows through the electronic device in the first chamber 102, the cold energy in the airflow can be exchanged to the electronic device in the first chamber 102, and the heat of the electronic device in the first chamber 102 can be taken away, thereby Realize the heat dissipation of the electronic devices in the first cavity 102 . That is to say, the heat of the electronic device in the first cavity 102 is sent to the first heat sink 11 to realize the heat dissipation of the electronic device in the first cavity 102 .

In addition, the accommodating chamber 101 may further include a second chamber 103 , and the heat dissipation method of the electronic device in the second chamber 103 may be different from that of the electronic device in the first chamber 102 . For example, a second heat sink 12 corresponding to the second cavity 103 may be provided, and the second heat sink 12 may be configured to dissipate heat for electronic devices in the second cavity 103 through heat conduction. In this way, the heat dissipation of the electronic devices in the second cavity 103 is realized. Through heat conduction, heat dissipation efficiency and effect can be improved, and rapid heat dissipation of electronic devices with high operating temperature can be realized.

According to the frequency conversion cabinet 100 of the embodiment of the present invention, a first chamber 102 and a second chamber 103 are provided. The first chamber 102 can exchange heat by means of gas circulation, and the first radiator 11 is used to cool the air in the first chamber 102. The temperature of the electronic device in the first cavity 102 can be reduced; and the second radiator 12 can be used to reduce the temperature of the electronic device in the second cavity 103, and different methods can be used to dissipate heat, which can be targeted for different types of The heat dissipation of the electronic devices can reduce the heat conduction between different electronic devices, improve the stability of the operation of each electronic device, and at the same time, through the isolation of the first cavity 102 and the second cavity 103, the interference between different electronic devices can be reduced. Improve the stability of the frequency conversion cabinet 100 and reduce the failure rate.

As shown in FIG. 1, a fourth electronic device A and a fifth electronic device B are arranged in the accommodation chamber 101, the fourth electronic device A is arranged in the first chamber 102, and is suitable for dissipating heat through the first radiator 11, the fifth electronic device A The electronic device B is disposed in the second cavity 103 and is suitable for dissipating heat through the second radiator 12 .

In some embodiments of the present utility model, the first cavity 102 is a closed cavity, which constructs a closed flow channel in the cabinet body 10, which can be realized by combining the airflow driving member 14 and the first radiator 11 Dissipating heat from the electronic devices in the first cavity 102 . And the second cavity 103 can be set to the open form, for example, the space outside the first cavity 102 in the cabinet body 10 is set to the second cavity 103, this moment because the second cavity 103 is an open space, can facilitate the second cavity Installation and maintenance of electronic devices in the second chamber 103. In addition, a door body 20 can be installed on the cabinet body 10 , and the cabinet body 10 can be opened and closed through the door body 20 . Specifically, in some embodiments, the door body 20 can be used to open and close the second chamber 103. When the door body 20 is opened, the second chamber 103 is opened, which can facilitate the installation of electronic devices in the second chamber 103. and enclosure, and it is convenient to check the running state of the frequency conversion cabinet 100 through the electronic devices in the second chamber 103. At this time, the first chamber 102 is in a closed state, which will not affect the space in the second chamber 103. The second The cavity 103 can be maintained in an environment with low humidity and less dust, and its heat dissipation effect and running stability are relatively high; when the door body 20 is closed, the second cavity 103 is closed, and at this time, the second cavity A relatively closed environment will be formed in the cavity 103. At this time, under the effect of natural convection or other methods, the temperature in the second cavity 103 can be relatively uniform, and the temperature in the second cavity 103 can also be realized to a certain extent. Heat dissipation of electronic devices.

In addition, in the second cavity 103 of the present invention, no airflow driving structure such as a fan may be provided, so that the electronic devices in the second cavity 103 will operate with relatively low noise, effectively reducing the noise of the frequency conversion cabinet 100, and It can avoid introducing external high-humidity air, dusty airflow, etc. into the second chamber 103, so as to prolong the service life of the electronic devices in the second chamber 103; of course, an airflow driving structure such as a fan can also be set in the second chamber 103, In this way, sufficient heat exchange of the electronic devices in the second chamber 103 can be achieved, the temperature environment of the electronic devices in the second chamber 103 can be maintained, and the operation stability and service life of the electronic devices in the second chamber 103 can be improved.

The first cavity 102 in the utility model can be set as a heat dissipation channel in the form of a straight line, a curve, a broken line, etc., and through the driving action of the airflow driver 14, the first heat sink 11 is used to take away the heat, for example, to dissipate heat. The airflow can enter from one end of the first chamber 102 and flow out from the second end of the first chamber 102. Of course, at this time, it may have an adverse effect on the surrounding environment, and it will also cause the dusty airflow in the external environment to enter. into the first cavity 102 and affect the operating environment in the first cavity 102 .

In addition, the utility model is provided with a first radiator 11 to take away the heat in the first chamber 102, and when the heat dissipation air flow in the first chamber 102 circulates, the first radiator 11 can be used to take away the heat in the second chamber 103. heat from electronics. Therefore, in order to reduce the impact on the surrounding environment during the heat dissipation process in the utility model, the first cavity 102 can be configured as an annular cavity, and the airflow in the first cavity 102 is suitable for circulating under the driving action of the airflow drive member 14 to dissipate heat . Through the circulation of the airflow, the temperature in the first chamber 102 can be effectively reduced, and the heat dissipation of the electronic devices in the first chamber 102 can be realized, so that a better temperature environment can be provided for the operation of the electronic devices in the first chamber 102, and at the same time, the temperature can be reduced. The influence of the heat in the first cavity 102 on the surrounding environment, especially the influence of the heat in the first cavity 102 on the electronic devices in the second cavity 103 can be reduced, and the stability of the entire frequency conversion cabinet 100 can be improved. In addition, the first heat sink 11 also has a condensation function, and the first heat sink 11 can be used to adjust the humidity in the first chamber 102 and optimize the humidity environment of the electronic devices in the first chamber 102 .

The first cavity 102 in the utility model can be set as a circular cavity, an elliptical ring, a polygonal ring or other irregular shaped ring cavity. The first cavity 102 of a specific embodiment of the utility model will be described below with reference to the accompanying drawings.

As shown in FIG. 7 , in some embodiments of the present utility model, the first cavity 102 may include a first flow channel 1021, the first flow channel 1021 is located at the bottom of the cabinet body 10, and is configured to guide the cooling air flow from the first side of the cabinet body 10 flow to the second side. Referring to Figure 7, the first flow channel 1021 is located at the bottom of the cabinet 10 and extends from left to right so as to guide the heat dissipation airflow from the left side of the bottom of the cabinet 10 to the right side of the cabinet 10 to realize the Heat dissipation at the bottom of the cabinet body 10. At the same time, if condensed water is generated in the first cavity 102 , it will flow to the first flow channel 1021 , accumulate in the bottom of the first flow channel 1021 , or be exported through the flow guiding structure provided in the first flow channel 1021 .

During the air circulation process in the first cavity 102, the temperature at the position of the first radiator 11 is relatively low, therefore, it is easy to generate condensation at the position of the first radiator 11, thereby generating condensed water. Therefore, this In the utility model, the first radiator 11 is arranged in the first flow channel 1021, so that when condensation occurs on the first radiator 11, it can flow to the bottom of the cabinet 10 more quickly, avoiding condensation water etc. The flow in the cavity 102 will affect other electronic devices and improve the stability of the frequency conversion cabinet 100 .

In the utility model, a discharge port is provided on the bottom wall of the first flow channel 1021. After the condensed water is generated in the first cavity 102, the condensed water can be discharged through the discharge port, so that the condensed water in the first cavity 102 can be discharged. The effective discharge improves the stability and safety of the operation of the electronic devices in the first chamber 102. In addition, the first cavity 102 in the present invention can be set in the form of a closed flow channel. Since the internal space of the first cavity 102 is relatively closed, it is difficult for the external dust-laden airflow, high-humidity airflow, etc. to enter the first cavity 102. The first radiator 11 arranged in the first chamber 102 can have a certain condensation capacity, therefore, through the cooperation of the discharge port and the first radiator 11, the humidity in the first chamber 102 can be effectively reduced, and the first chamber 102 can be maintained. The stable operation of each component inside.

Of course, the bottom of the first cavity 102 of the present utility model may not be provided with a discharge port. When condensed water is generated in the first cavity 102, the condensed water can be retained in the first cavity 102. Due to the setting of the first radiator 11 , can effectively reduce the humidity in the first chamber 102, and the condensed water remaining at the bottom of the first chamber 102 can maintain the humidity in the first chamber 102 and avoid the humidity in the first chamber 102 from being too low.

In some embodiments of the present utility model, the first cavity 102 further includes a second flow channel 1022, the second flow channel 1022 is located on the second side of the cabinet body 10, and guides the heat dissipation air flow from the bottom of the cabinet body 10 to the bottom of the cabinet body 10. upper part. Referring to FIG. 7 , the second flow channel 1022 is arranged on the right side of the cabinet body 10 and extends in the up-down direction, and the lower end of the second flow channel 1022 communicates with the right end of the first flow channel 1021 . The heat dissipation airflow in the first flow channel 1021 can be sent to the upper part of the cabinet body 10 through the second flow channel 1022, so as to realize the heat dissipation of the electronic devices on the upper part of the cabinet body 10, wherein the electronic devices can be arranged in the second flow channel 1022, Therefore, the cooling air flow passing through the second flow channel 1022 is used to dissipate heat; the second flow channel 1022 can also be used only as a channel for the delivery of air flow. The second flow channel 1022 can be adjusted according to actual usage conditions.

Wherein, when no electronic devices are arranged in the second flow channel 1022, part of the electronic devices in the second cavity 103 can be arranged at a position close to the second flow channel 1022, so that not only the cooling capacity in the second flow channel 1022 can be utilized To realize the heat dissipation of these electronic devices, and further weaken the mutual interference between the electronic devices. In addition, when no electronic device is arranged in the second flow channel 1022, the thickness of the second flow channel 1022 along the left and right direction can be set relatively small to optimize the space utilization of the frequency conversion cabinet 100, for example, the second flow channel can be The thickness of 1022 along the left and right direction is set to be smaller than the thickness of the first flow channel 1021 along the up and down direction; of course, in combination with the following embodiments, the thickness of the second flow channel 1022 along the left and right direction can also be set to be smaller than that of the third flow channel 1023 along the up and down direction The thickness of the second flow channel 1022 along the left-right direction can also be set to be smaller than the thickness of the fourth flow channel 1024 along the left-right direction.

In some embodiments of the present invention, the flow channel wall of the first flow channel 1021 includes a first deflector 121, and the first deflector 121 is arranged close to the second flow channel 1022, and is directed from the first side toward the second side. In terms of direction, the first deflector 121 is inclined downward relative to the horizontal direction. Through the first deflector 121, the airflow in the first flow channel 1021 can be directed to the first radiator 11, so that the airflow can better exchange heat with the first radiator 11, so that the airflow can direct the first radiator The cold energy of 11 is brought to other positions in the first cavity 102 to realize the heat dissipation of the electronic devices in the first cavity 102 .

Due to the flow guiding effect of the first flow guide plate 121, the cross-sectional area of the first flow channel 1021 is reduced, resulting in a relatively large air resistance of the air flow. Therefore, the flow channel wall of the second flow channel 1022 in the present invention is set to include The second deflector 122, the second deflector 122 is close to the first flow channel 1021, the first deflector and the second deflector meet along the direction from the first side to the second side, and from the first side toward In the direction of the second side, the second deflector 122 is inclined upward relative to the horizontal direction. The circulation area of the airflow can be increased by the second guide piece, so that the circulation of the airflow can be facilitated, and the noise during the airflow circulation can be effectively reduced, the stability of the frequency conversion cabinet 100 can be improved, and the noise reduction of the frequency conversion cabinet 100 can be realized.

In addition, the first chamber 102 further includes a third flow channel 1023 disposed on the upper part of the cabinet body 10 , and the third flow channel 1023 guides the cooling air flow from the second side to the first side of the cabinet body 10 . Referring to FIG. 5 , the third flow channel 1023 is disposed on the upper part of the cabinet body 10 and extends along the left-right direction, and the right end of the third flow channel 1023 communicates with the upper end of the second flow channel 1022 . Through the diversion effect of the third flow channel 1023, the guidance of the airflow can be facilitated, wherein the third flow channel 1023 is set on the upper part of the cabinet body 10, and can be guided by the aforementioned first flow channel 1021 and the second flow channel 1022. The airflow after cooling is guided to the third channel 1023 . Electronic devices can be arranged in the third flow channel 1023, wherein, because the position of the third flow channel 1023 is relatively high, the influence of condensed water and the like can be avoided, therefore, electronic devices can be placed in the third flow channel 1023, which can improve electronic Stability of device operation.

Wherein, the diode 35 can be placed in the third flow channel 1023, wherein, a plurality of diodes 35 can be arranged in the third flow channel 1023, and the plurality of diodes 35 can be arranged along the airflow direction, for example, a plurality of diodes 35 can be arranged in the third flow channel 1023. row of diodes 35, and each row includes at least one diode 35, wherein multiple rows of diodes 35 are arranged at intervals along the airflow direction, and two adjacent rows of diodes 35 can be arranged side by side or in a dislocation arrangement form.

Optionally, the first cavity 102 further includes a fourth flow channel 1024 disposed on the first side, and the fourth flow channel 1024 guides the cooling air flow from above the cabinet body 10 to the bottom of the cabinet body 10 . Referring to accompanying drawing 7, the fourth flow channel 1024 can be arranged on the left side of cabinet 10, and extends along the up and down direction, and the upper end of the fourth flow channel 1024 communicates with the left end of the third flow channel 1023, the fourth flow channel 1024 The lower end communicates with the left end of the first channel 1021 . Through the guiding function of the fourth flow channel 1024, the airflow can be guided to the first flow channel 1021, so that the first flow channel 1021, the second flow channel 1022, the third flow channel 1023 and the fourth flow channel 1024 are combined to form an annular switching channel. hot aisle.

Wherein, the fourth flow channel 1024 is at the end of the circulation flow channel, at this time, the cooling capacity of the heat dissipation airflow is limited, so some electronic devices with lower temperature requirements can be placed in the fourth flow channel 1024, or in other words, the fourth flow channel can be placed in the fourth flow channel 1024. Electronic devices with high working temperature are placed in the flow channel 1024 .

Optionally, the airflow driver 14 of the present invention includes a plurality of airflow drivers 14 arranged along the extension direction of the first chamber 102 and configured to drive the airflow in the first chamber 102 to flow through the first chamber 102 Inside the first heat sink 11 and electronic devices.

Wherein, the airflow driver 14 may include a first fan 141, the first fan 141 is arranged at the junction of the first flow channel 1021 and the second flow channel 1022, the first fan 141 is configured to drive the air flow from the first flow channel 1021 to the second flow channel Road 1022. By providing the first fan 141 , the circulation of the airflow can be facilitated, thereby reducing the influence of the air resistance at the corner between the first flow channel 1021 and the second flow channel 1022 on the flow of heat dissipation air.

In addition, both the main suction direction and the main blowing direction of the first fan 141 are inclined toward the second side with respect to the vertically upward direction. It can further reduce the air resistance, facilitate the air flow, and improve the efficiency and effect of the heat dissipation line.

In addition, the airflow driver 14 may include a second fan 142, the second fan 142 is arranged at the junction of the third flow channel 1023 and the fourth flow channel 1024, the second fan 142 is configured to drive the air flow from the third flow channel 1023 to the fourth flow channel 1024. Four runners 1024. Improve heat dissipation efficiency and effect.

Optionally, a partition 15 is provided in the cabinet body 10 of the present utility model, and the partition board 15 separates a first cavity 102 and a second cavity 103 in the cabinet body 10, and the first cavity 102 is suitable for air flow to reduce the first cavity. The temperature in the cavity 102, the first cavity 102 is separated from the second cavity 103, and the first cavity 102 and the second cavity 103 are respectively used to accommodate electronic devices.

In conjunction with the foregoing, as shown in FIG. 8 , in some embodiments of the present invention, the side plate 151 includes a first plate portion 1511 opposite to the bottom plate of the frequency conversion cabinet 100 up and down, and the first cavity 102 includes a The first flow channel 1021 is located at the bottom of the cabinet body 10 and is configured to guide the cooling air flow from the first side to the second side of the cabinet body 10 . The first radiator 11 is arranged in the first flow channel 1021, the first plate portion 1511 includes a first deflector 121 close to the second side of the cabinet body 10, and in the direction from the first side to the second side, the first deflector 121 The flow plate 121 is inclined downward relative to the horizontal direction, and the first flow guide plate 121 is configured to guide the air flow to the first radiator 11 .

The side plate 151 also includes a second plate portion 1512 opposite to the side wall on the second side of the frequency conversion cabinet 100 , and the first cavity 102 includes a second plate portion 1512 located between the second plate portion 1512 and the side wall on the second side of the frequency conversion cabinet 100 . Two channels 1022 , the second channel 1022 communicates with the first channel 1021 . The second plate portion 1512 includes a second deflector 122 close to the first flow channel 1021, the second deflector 122 is in contact with the first deflector 121 along the direction from the first side to the second side, and from the first In the direction of the side facing the second side, the second deflector 122 is inclined upward relative to the horizontal direction.

The side plate 151 also includes a third plate portion 1513 opposite to the top wall of the frequency conversion cabinet 100, the first chamber 102 includes a third flow channel 1023 between the third plate portion 1513 and the top wall of the frequency conversion cabinet 100, the third flow channel The channel 1023 communicates with the second flow channel 1022 .

The side plate 151 also includes a fourth plate portion 1514 opposite to the side wall on the first side of the frequency conversion cabinet 100 , and the first cavity 102 includes a fourth plate portion 1514 located between the fourth plate portion 1514 and the side wall on the first side of the frequency conversion cabinet 100 . Four flow channels 1024 , the fourth flow channel 1024 communicates with the third flow channel 1023 and the first flow channel 1021 .

The partition 15 may further include a front panel 152 , which is opposite to the back panel of the cabinet body 10 and extends along the circumference of the cabinet body 10 , and the front panel 152 covers the front side of the first cavity 102 . The structure of the partition 15 can be simplified, and the structural strength and stability of the frequency conversion cabinet 100 can be optimized.

Optionally, the first cavity 102 is configured as a ring extending along the peripheral wall of the cabinet 10 in the cabinet body 10. At this time, the first cavity 102 may have a simpler structure and a larger coverage area, and the second cavity 102 may have a larger coverage area. The first chamber 102 does not cut off the second chamber 103, and the second chamber 103 can also have a larger space for placing electronic devices, and can facilitate the arrangement of electronic devices in the second chamber 103, thereby facilitating the maintenance and use of the frequency conversion cabinet 100 , optimize the performance of the frequency conversion cabinet 100, reduce the failure rate of the frequency conversion cabinet 100, and improve stability.

Optionally, the first cavity 102 is configured as a closed annular cavity, and the second cavity 103 is separated from the first cavity 102 . The first chamber 102 is arranged in a closed form, which facilitates the driving of the airflow by the airflow driver 14, impels the airflow to fully exchange heat with the first radiator 11, and effectively improves the airflow in the first chamber 102 and the first chamber. The heat dissipation efficiency and effect of the electronic device in the first cavity 102 can avoid the influence of the heat of the electronic device in the first cavity 102 on the surrounding environment, and can also avoid the influence of the surrounding environment on the electronic device in the first cavity 102 . At the same time, dust, water, and high-humidity air in the external environment can be reduced from affecting the stable operation of the electronic devices in the first cavity 102 .

Optionally, the first chamber 102 is disposed in the cabinet 10 close to the backboard of the cabinet 10 . It can facilitate the installation and maintenance of electronic devices in the second cavity 103. In addition, in combination with the foregoing embodiments, the first cavity 102 is a closed annular cavity, and the first cavity 102 is set close to the backplane. After the first cavity 102 is assembled, , and then install the electronic devices in the second chamber 103, at this time the first chamber 102 will not affect the installation of components in the second chamber 103, which can improve the installation efficiency of the electronic devices in the frequency conversion cabinet 100.

Optionally, as shown in FIG. 2 , the frequency conversion cabinet 100 further includes a door body 20 connected to the cabinet body 10 and configured to open and close the accommodating cavity 101 , and the door body 20 seals the accommodating cavity 101 when closing the second chamber 103 . By opening and closing the door body 20 , the electronic devices in the second chamber 103 can be connected, installed, maintained, debugged and so on. The installation of electronic devices and the use of the frequency conversion cabinet 100 can be facilitated by providing the door body 20 .

Optionally, the second heat sink 12 is a parallel flow heat sink, and the parallel flow heat sink can have a relatively high cooling capacity, so that the effective heat dissipation of the electronic devices in the second cavity 103 can be realized to maintain the electronic components in the second cavity 103. The stable operation of the device improves the operation stability of the frequency conversion cabinet 100 and reduces the failure rate.

The first radiator 11 is an evaporator. The first radiator 11 can be combined with a compressor, a condenser, etc., and utilize phase change of the refrigerant to realize heat dissipation, and optimize the heat dissipation efficiency and effect in the first cavity 102 . When in use, the first radiator 11 is arranged in the first cavity 102, and the air flow in the first cavity 102 can be used to send the cold energy on the first radiator 11 to other positions in the first cavity 102, thereby realizing The heat dissipation of the electronic devices in the first chamber 102 is optimized to optimize the operating environment of the electronic devices in the first chamber 102 and improve the stability and service life of the frequency conversion cabinet 100 .

Optionally, the electronic device in the first cavity 102 includes a first electronic device and a second electronic device, the heating power of the first electronic device is smaller than that of the second electronic device, and along the flow direction of the heat dissipation airflow, the first electronic device upstream of the second electronics. In other words, during the flow of the heat dissipation airflow, the airflow will pass through the first heat sink 11, the first electronic device and the second electronic device, and the heat dissipation airflow passing through the first heat sink 11 will first pass through the first electronic device, so as to The heat of the first electronic device is taken away to maintain the stable operation of the first electronic device; after the heat dissipation airflow passes through the first electronic device, the temperature of the heat dissipation airflow increases slightly, and when the heat dissipation airflow continues to flow through the second electronic device, It can still have a better heat dissipation effect, so as to facilitate the heat dissipation of the second electronic device.

Of course, the heat dissipation airflow passing through the first heat sink 11 can also pass through the second electronic device first and then pass through the first electronic device. In this way, the heat dissipation airflow can better dissipate heat to the second electronic device and improve the heat dissipation effect.

Optionally, the electronic device includes a third electronic device, the third electronic device is disposed in the second cavity 103 , and the second radiator 12 is stacked with the third electronic device to dissipate heat for the third electronic device. By stacking, the cold energy of the second heat sink 12 can be quickly transferred to the third electrical device, which has a better heat dissipation effect than airflow heat exchange. Therefore, generally, the electronic devices with relatively high heating power in the frequency conversion cabinet 100 can be dissipated by using the second radiator 12 to dissipate heat directly through heat conduction.

Optionally, the second heat sink 12 can be at least partially disposed in the second cavity 103, which can provide stable heat dissipation for the electronic devices stacked with or adjacent to the second heat sink 12; The device 12 is used to reduce the temperature in the second chamber 103 to achieve the purpose of dissipating heat from other electronic devices in the second chamber 103 .

Of course, the installation of the second radiator 12 in the second cavity 103 is relatively complicated, so the second radiator 12 can also be arranged on the back of the cabinet body 10 in the present utility model, and at least with the second radiator 103 in the second cavity 103 Corresponds to the position of some electronic devices. In this way, not only the installation of the second radiator 12 can be facilitated, but also the condensed water generated during the operation of the second radiator 12 can be prevented from flowing into the cabinet body 10 , thereby improving the operation stability of the frequency conversion cabinet 100 .

As shown in Figures 1 to 9, in some embodiments of the present invention, a circuit breaker 31, a reactor 32, a capacitor 33, an IGBT34, and a diode 35 are arranged in the accommodating cavity 101, wherein the circuit breaker 31, the reactor 32, the capacitor 33. The IGBT34 and the diode 35 are electrically connected to realize the frequency conversion function. They can be connected through metal bars (such as copper bars) to reduce the resistance during the operation of the frequency conversion cabinet 100, reduce energy consumption, and save energy and protect the environment.

In addition, at least one of the circuit breaker 31 , the reactor 32 , the capacitor 33 , the IGBT 34 and the diode 35 is provided in the first chamber 102 , and at least one is provided in the second chamber 103 . By arranging these electronic devices in the first cavity 102 or the second cavity 103, effective heat dissipation for each electronic device can be realized, and the efficiency and effect of heat dissipation can be improved.

Different heat dissipation methods can be provided according to different types of electronic devices. For example, the heat generated during the operation of the circuit breaker 31 is relatively small, and it can be arranged in the second cavity 103 at a position relatively far from the second heat sink 12 The heat generated during the operation of the reactor 32 is relatively high, and it can be placed in the first cavity 102 to dissipate heat by means of gas circulation; the heat generated during the operation of the capacitor 33 is lower than that of the reactor 32, and it It can be placed in the first cavity 102 and dissipated by gas circulation, and in the flow direction of the heat dissipation airflow, the first heat sink 11, capacitor 33 and reactor 32 are arranged in sequence to realize the Both can perform better heat dissipation; the temperature of the IGBT34 and the diode 35 during operation is relatively high, and placing them in the first cavity 102 may affect the heat dissipation effect of other components in the first cavity 102. Therefore, the utility model Among them, it is preferable to place the IGBT34 and the diode 35 in the second cavity 103, and use the second heat sink 12 to dissipate heat, which can not only improve the heat dissipation effect of the IGBT34 and the diode 35, but also avoid the operation of the IGBT34 and the diode 35. The heat in the process affects the stable operation of other electronic devices.

The utility model provides a frequency conversion cabinet 100. The frequency conversion cabinet 100 has a first cavity 102 and a second cavity 103, and adopts different ways to dissipate heat. It can dissipate heat according to the heating power of different devices in the frequency conversion cabinet 100. The components can be Reduce the mutual transfer of heat between devices, affect the heat dissipation effect, and also play a mobile isolation effect to achieve the purpose of anti-interference.

1 to 9, the frequency conversion cabinet 100 of the present invention includes a cabinet body 10 and a door body 20. The cabinet body 10 has an accommodating cavity 101, which can be opened and closed through the door body 20. The accommodating cavity 101 is divided into The first cavity 102 and the second cavity 103, the first cavity 102 is a closed annular cavity, and is arranged along the peripheral wall of the cabinet body 10, and the first cavity 102 is arranged around the second cavity 103, and the first cavity 102 includes sequentially connected The first flow channel 1021, the second flow channel 1022, the third flow channel 1023 and the fourth flow channel 1024, the first heat sink 11 is arranged in the first flow channel 1021, the first flow channel 1021 and the second flow channel 1022 are provided with The first fan 141 is provided with the capacitor 33 in the third channel 1023 , the reactor 32 is provided in the fourth channel 1024 , and the second fan 142 is provided between the third channel 1023 and the fourth channel 1024 . Driven by the first fan 141 and the second fan 142, the airflow can flow along the first flow path 1021, the second flow path 1022, the third flow path 1023 and the fourth flow path 1024 to form a circulation loop, and the airflow passes through the first flow path in sequence. A heat sink 11 , a first fan 141 , a capacitor 33 , a second fan 142 and a reactor 32 realize heat dissipation of electronic devices.

Circuit breaker 31, diode 35, IGBT34, transformer 36, contactor 37, electric control board and other structures can be set in the second chamber 103, and because the working temperature of igbt and diode 35 is relatively high, so the second heat sink 12 is set to To dissipate heat from the igbt and the diode 35 , wherein the second radiator 12 can be stacked on the back of the cabinet 10 . Wherein the IGBT34 and the diode 35 are arranged side by side and stacked on the backboard of the cabinet body 10 , and the contactor 37 and the transformer 36 are stacked on the backboard of the cabinet body 10 and located below the IGBT34 .

In addition, a junction box 13 is provided on the outside of the cabinet 10, and the junction box 13 is arranged close to the circuit breaker 31, wherein the junction box 13, the circuit breaker 31, the reactor 32, the diode 35, the IGBT34, the transformer 36, the contactor 37, etc. are electrically connected to form a frequency conversion circuit. circuit (for example, connected into a frequency conversion structure in the related art).

In addition, the utility model also provides a compressor, which can include the aforementioned frequency conversion cabinet, and the frequency conversion of the compressor can be realized through the aforementioned frequency conversion cabinet, so that the frequency of the compressor can be adjusted conveniently according to different working conditions. to improve energy efficiency. Moreover, the utility model adopts the aforementioned frequency conversion cabinet, which can improve the stability and effect of frequency conversion, enable the compressor to run stably, reduce the failure rate of the compressor, and facilitate the stable operation of the compressor at a predetermined frequency, improving Energy efficiency, energy saving and environmental protection.

The utility model also provides a heating and ventilation equipment, which may include the aforementioned frequency conversion cabinet, or the heating and ventilation equipment may include the aforementioned compressor. By setting the above-mentioned frequency conversion cabinet, the stability of the HVAC equipment can be improved. In addition, the first radiator and the second radiator in the frequency conversion cabinet can dissipate heat by using the phase change of the refrigerant. For example, the first heat dissipation The radiator and the second radiator can be connected to the unit or compressor of the HVAC equipment, so that the compressor can be used to dissipate heat from the electronic components in the frequency conversion cabinet, and improve the stability of the HVAC equipment and the frequency conversion cabinet. Moreover, the structure of the heating and ventilation equipment can be simplified, and the space utilization and stability of the heating and ventilation equipment can be optimized.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; may be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediary, and may be an internal communication between two elements or an interactive relationship between two elements, unless otherwise stated Clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (16)

1. A frequency conversion cabinet, characterized in that, comprising: A cabinet body (10), the cabinet body (10) is provided with an accommodating cavity (101), the accommodating cavity (101) is configured to accommodate electronic devices, and the accommodating cavity (101) includes a first cavity ( 102) and the second cavity (103); A first radiator (11), arranged in the first cavity (102), configured to reduce the temperature in the first cavity (102) through gas circulation; The second heat sink (12) is configured to dissipate heat for the electronic devices in the second cavity (103) through heat conduction; The airflow driving part is configured to form in the first cavity (102) a cooling airflow flowing through the electronic devices in the first cavity (102) and the first radiator (11). 2. The frequency conversion cabinet according to claim 1, characterized in that, the first cavity (102) is configured as an annular cavity, and the airflow in the first cavity (102) is suitable for circulation under the driving action of the airflow drive member to dissipate heat. 3. The frequency conversion cabinet according to claim 2, characterized in that, the first cavity (102) includes a first flow channel (1021), and the first flow channel (1021) is located at the bottom of the cabinet body (10) , and configured to guide the cooling air flow from the first side to the second side of the cabinet (10). 4. The frequency conversion cabinet according to claim 3, characterized in that, the first radiator (11) is arranged in the first flow channel (1021); And/or, a discharge port is provided on the bottom wall of the first flow channel (1021) to discharge the condensed water in the first cavity (102). 5. The frequency conversion cabinet according to claim 3, characterized in that, the first cavity (102) further includes a second flow channel (1022), and the second flow channel (1022) is located in the cabinet body (10 ), guiding the heat dissipation air flow from the bottom of the cabinet (10) to the upper part of the cabinet (10). 6. The frequency conversion cabinet according to claim 5, characterized in that, the flow channel wall of the first flow channel (1021) includes a first deflector (121) close to the second flow channel (1022), so The flow channel wall of the second flow channel (1022) includes a second flow guide plate (122) close to the first flow channel (1021), and the first flow guide plate (121) and the second flow guide plate (122) meet along the direction from the first side toward the second side, and in the direction from the first side toward the second side, the first deflector (121) is opposite to The horizontal direction is inclined downward, and the second deflector (122) is inclined upward relative to the horizontal direction. 7. The frequency conversion cabinet according to claim 5, characterized in that, the first cavity (102) further includes a third flow channel (1023) arranged on the upper part of the cabinet (10), the third The flow channel (1023) guides the heat dissipation airflow from the second side of the cabinet body (10) to the first side. 8. The frequency conversion cabinet according to claim 7, characterized in that, the first chamber (102) further includes a fourth flow channel (1024) arranged on the first side, and the fourth flow channel (1024 ) guiding the heat dissipation air flow from above the cabinet (10) to the bottom of the cabinet (10). 9. The frequency conversion cabinet according to any one of claims 1-8, characterized in that, the first chamber (102) is configured to be inside the cabinet body (10), along the cabinet body (10) ) ring extending around the wall; And/or, the first cavity (102) is configured as a closed annular cavity, and the second cavity (103) is separated from the first cavity (102); And/or, the first cavity (102) is set in the cabinet (10) close to the backboard of the cabinet (10). 10. The frequency conversion cabinet according to any one of claims 1-8, characterized in that, the frequency conversion cabinet further comprises: A door body (20), the door body (20) is connected with the cabinet body (10), and is configured to open and close the accommodating chamber (101), and the door body (20) closes the accommodating cavity The cavity (101) covers the second cavity (103). 11. The frequency conversion cabinet according to any one of claims 1-8, characterized in that, the second radiator (12) is a parallel flow radiator; and/or the first radiator (11) is Evaporator. 12. The frequency conversion cabinet according to any one of claims 1-8, characterized in that, the electronic devices in the first cavity (102) include first electronic devices and second electronic devices, and the first electronic devices The heating power of the device is smaller than the heating power of the second electronic device, and the first electronic device is upstream of the second electronic device along the flow direction of the heat dissipation airflow; And/or, the electronic device includes a third electronic device, the third electronic device is arranged in the second cavity (103), and the second heat sink (12) is laminated with the third electronic device set to dissipate heat for the third electronic device. 13. The frequency conversion cabinet according to any one of claims 1-8, characterized in that, the second radiator (12) is at least partially disposed in the second cavity (103); or, the The second radiator (12) is arranged on the back of the cabinet body (10), and corresponds to the position of at least some electronic devices in the second cavity (103). 14. The frequency conversion cabinet according to any one of claims 1-8, characterized in that, a circuit breaker (31), a reactor (32), a capacitor (33), The IGBT (34) and the diode (35), the circuit breaker (31), the reactor (32), the capacitor (33), the IGBT (34) and the diode (35) are electrically connected, and At least one of the circuit breaker (31), the reactor (32), the capacitor (33), the IGBT (34) and the diode (35) is arranged in the first chamber (102) , and at least one is located in the second chamber (103). 15. A compressor, characterized by comprising the frequency conversion cabinet according to any one of claims 1-14. 16. A heating and ventilation equipment, characterized by comprising the frequency conversion cabinet according to any one of claims 1-14; or the compressor according to claim 15.

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