CN219068072U

CN219068072U - Variable frequency cabinet and heating and ventilation equipment

Info

Publication number: CN219068072U
Application number: CN202320163533.6U
Authority: CN
Inventors: 李逸信; 贺伟衡; 李思源; 王坤杰; 林琳
Original assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd; Chongqing Midea General Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Heating and Ventilating Equipment Co Ltd; Chongqing Midea General Refrigeration Equipment Co Ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-05-23
Anticipated expiration: 2033-01-17

Abstract

The utility model discloses a frequency conversion cabinet and heating and ventilation equipment, wherein the frequency conversion cabinet comprises: the electronic device comprises a cabinet body, wherein the cabinet body is provided with a containing cavity, the front side of the containing cavity is provided with an opening, the rear side of the containing cavity is provided with a backboard, and the containing cavity is configured to contain the electronic device; the first mounting plate is arranged in the cabinet body and is laminated on the front side of the backboard, and a gap is reserved between the first mounting plate and the backboard; wherein, a plurality of circuit boards are installed to the range upon range of on the first mounting panel. Above-mentioned frequency conversion cabinet, a plurality of circuit boards are laminated and are installed on first mounting panel, and the circuit board integrated level is high, has reduced veneer quantity, improves power density.

Description

Variable frequency cabinet and heating and ventilation equipment

Technical Field

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

Background

The variable frequency cabinet control cabinet, which is called variable frequency cabinet for short, can be widely applied to various medium-voltage motor equipment such as pumps, fans, compressors, rolling mills, injection molding machines, belt conveyors and the like in metallurgy, chemical industry, petroleum, water supply, mines, building materials, motor industry and the like.

In the related art, the frequency conversion cabinet comprises a plurality of electronic devices such as a frequency conversion cabinet power element, a frequency conversion cabinet control element and the like, the electronic devices are distributed in disorder, a plurality of circuit boards are distributed independently, and a plurality of single boards are arranged.

Disclosure of Invention

The embodiment of the utility model provides a variable-frequency cabinet and heating and ventilation equipment.

The frequency conversion cabinet of the embodiment of the utility model comprises:

the electronic device comprises a cabinet body, wherein the cabinet body is provided with a containing cavity, the front side of the containing cavity is provided with an opening, the rear side of the containing cavity is provided with a backboard, and the containing cavity is configured to contain the electronic device;

the first mounting plate is arranged in the cabinet body and is laminated on the front side of the backboard, and a gap is reserved between the first mounting plate and the backboard;

wherein, a plurality of circuit boards are installed to the range upon range of on the first mounting panel.

Above-mentioned frequency conversion cabinet, a plurality of circuit boards are laminated and are installed on first mounting panel, and the circuit board integrated level is high, has reduced veneer quantity, improves power density.

In some embodiments, the plurality of circuit boards are disposed side-by-side and stacked on the same side of the first mounting board.

In some embodiments, the plurality of circuit boards are stacked on a side of the first mounting board facing away from the back plate;

or, the plurality of circuit boards are laminated on one side of the first mounting board facing the back plate.

In some embodiments, the plurality of circuit boards are respectively stacked on two opposite sides of the first mounting board along the front-back direction, at least one of the plurality of circuit boards is stacked on one side of the first mounting board facing the back board, and at least one of the plurality of circuit boards is stacked on one side of the first mounting board facing away from the back board.

In some embodiments, the coverage rate of the plurality of circuit boards on one side surface of the first mounting board is not less than 90%;

or, the total area of the plurality of circuit boards is not less than 90% of the surface of one side of the first mounting board.

In certain embodiments, the variable frequency cabinet further comprises:

the second mounting plate is arranged in the cabinet body and is laminated on the front side of the first mounting plate, and a gap is reserved between the second mounting plate and the first mounting plate.

In some embodiments, the variable frequency cabinet includes air conditioning unit valve control board and main control board, the air conditioning unit valve control board is used for connecting the control valve of air conditioning unit, the main control board with the air conditioning unit valve control board links to each other, and locates on the first mounting panel, the main control board with the air conditioning unit valve control board is along fore-and-aft direction relatively.

In some embodiments, the second mounting plate is reversibly disposed within the cabinet between an open position and a closed position, the second mounting plate exposing the first mounting plate when open and covering the first mounting plate when closed.

In certain embodiments, the variable frequency cabinet further comprises:

the third mounting plate is arranged in the cabinet body and is laminated on the front side of the back plate, a gap is reserved between the third mounting plate and the back plate, the third mounting plate and the second mounting plate are arranged side by side, and a first weak current device is arranged on the third mounting plate.

In some embodiments, at least one of a wiring strip, a wiring groove and a smart meter is arranged on the third mounting plate.

In certain embodiments, the variable frequency cabinet further comprises:

the fourth mounting plate is arranged in the cabinet body and is laminated on the front side of the back plate, a gap is reserved between the fourth mounting plate and the back plate, the fourth mounting plate and the first mounting plate are arranged side by side, and a first weak current device is arranged on the fourth mounting plate.

In some embodiments, a portion of the fourth mounting plate is stacked on the rear side of the third mounting plate and another portion is stacked on the rear side of the second mounting plate.

In some embodiments, the third mounting plate is reversibly hinged to the fourth mounting plate to cover and reveal structures on the rear side of the third mounting plate.

In some embodiments, the receiving cavity includes a first cavity and a second cavity, and the first cavity is configured in a duct structure to dissipate heat from electronic devices within the first cavity, the second cavity being spaced apart from the first cavity.

In certain embodiments, further comprising:

and the air flow driving piece is arranged in the first cavity and is configured to drive heat dissipation air flow to flow in the first cavity, and at least one of the plurality of circuit boards is electrically connected with the air flow driving piece.

In certain embodiments, further comprising:

the first radiator is arranged in the first cavity and is configured to reduce the temperature in the first cavity in an air cooling mode, and the airflow driving piece is configured to drive radiating airflow to flow through the electronic device in the first cavity and the first radiator.

In certain embodiments, further comprising:

and the second radiator is configured to radiate heat for the electronic device in the second cavity in a heat conduction mode.

In certain embodiments, further comprising:

the door body is connected with the cabinet body and is configured to open and close the accommodating cavity,

wherein, be equipped with electronic device on the door body.

In some embodiments, the door body is provided with at least one of a communication module, a display module, a low-voltage control module and an emergency stop button.

The heating and ventilation equipment provided by the embodiment of the utility model comprises:

the variable frequency cabinet in any of the above embodiments;

and the air conditioning unit is connected with the variable frequency cabinet.

In some embodiments, a unit control board of the air conditioning unit is integrated on the variable frequency cabinet, and the unit control board is in signal transmission with the air conditioning unit.

Above-mentioned heating and ventilation equipment, a plurality of circuit boards range upon range of installation on first mounting panel, and the circuit board integrated level is high, has reduced veneer quantity, improves power density.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 is a schematic view of a variable frequency cabinet according to an embodiment of the utility model, wherein a door is closed.

Fig. 2 is a schematic view of a variable frequency cabinet according to an embodiment of the utility model, wherein the door is open.

Fig. 3 is a schematic diagram of a variable frequency cabinet according to one embodiment of the utility model.

Fig. 4 is a schematic diagram of a variable frequency cabinet according to one embodiment of the utility model.

Fig. 5 is a schematic diagram of a variable frequency cabinet according to one embodiment of the utility model.

Fig. 6 is a schematic diagram of a variable frequency cabinet according to one embodiment of the utility model.

Fig. 7 is a schematic diagram of a variable frequency cabinet according to one embodiment of the utility model.

Reference numerals: the variable frequency cabinet 100, the cabinet body 10, the opening 12, the back plate 14, the side plate 16, the door body 18, the first mounting plate 101, the second mounting plate 102, the third mounting plate 103, the fourth mounting plate 104, the accommodating cavity 20, the first cavity 201, the first radiator 2011, the second cavity 202, the second radiator 2021, the air flow driving piece 22, the electronic device 30, the circuit board 32, the air conditioning unit valve control board 40, the main control board 42 and the control valve 44.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The disclosure herein provides many different embodiments or examples for implementing different structures of the utility model. To simplify the present disclosure, components and arrangements of specific examples are described herein. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 7, a variable frequency cabinet 100 according to an embodiment of the present utility model includes: the cabinet 10 and the first mounting plate 101. The cabinet body 10 is provided with a containing cavity 20, the front side of the containing cavity 20 is provided with an opening 12, the rear side of the containing cavity 20 is provided with a backboard 14, and the containing cavity 20 is configured to contain an electronic device 30. The first mounting board 101 is disposed in the cabinet 10 and laminated on the front side of the back plate 14, and a gap is provided between the first mounting board 101 and the back plate 14, wherein a plurality of circuit boards 32 are laminated and mounted on the first mounting board 101.

In the inverter cabinet 100, the plurality of circuit boards 32 are stacked and mounted on the first mounting board 101, so that the integration level of the circuit boards 32 is high, the number of single boards is reduced, and the power density is improved.

Specifically, referring to fig. 2-4, the front side of the accommodating cavity 20 in the cabinet 10 has an opening 12, the rear side has a back plate 14, the opening 12 of the cabinet 10 is shown in the front-rear direction of the cabinet 10, one side of the opening 12 of the cabinet 10 is shown in the left-right direction of the cabinet 10 along the short side direction, and one side of the opening 12 of the cabinet 10 is shown in the up-down direction of the cabinet 10 along the long side direction. The accommodating chamber 20 provided in the cabinet 10 is used for accommodating the electronic device 30, and the front side of the accommodating chamber 20 is provided with an opening 12 for facilitating the installation and maintenance of the electronic device 30. The back side of the cabinet 10 is provided with a back plate 14, and the side edge is provided with a side plate 16. The first mounting board 101 disposed in the cabinet 10 is provided with a plurality of circuit boards 32 in a stacked manner, so that the integration level is high, the number of single boards is reduced, and the power density is improved.

The electronics 30 in the housing cavity 20 may include electronics 30 housed in the housing cavity 20 may include an electronic control board, a 2G module, a display screen, an emergency stop button, a control board, a guide vane fan board, a control board, a wiring terminal, an intelligent telegram, a transformer, a circuit breaker, a 24V power board, a drive board, a control board, a 380V power board, an APF, a filter board, an absorption resistor, a capacitor, an IGBT, a transformer, a buffer resistor, a fan, an evaporator, a reactor, a transformer, a diode. The strong-current device can comprise an absorption resistor, a capacitor, an IGBT, a transformer, a buffer resistor, a fan, an evaporator, a reactor, a mutual inductor and a diode. The weak current device may include an electric control board, a 2G module, a display screen, an emergency stop button, a control board, a guide vane fan board, a control board, a wiring terminal, an intelligent telegram, a transformer, a circuit breaker, a 24V power board, a drive board, a control board, a 380V power board, an APF, a filter board.

In some embodiments, the electronic devices 30 are layered in the front-to-back direction, with a distinct hierarchy, which may be achieved by mounting the electronic devices 30 on a plurality of mounting boards that are layered in the front-to-back direction within the cabinet 10. Referring to fig. 3, in the present embodiment, a plurality of mounting plates are provided in the cabinet 10, a first mounting plate 101, a second mounting plate 102, a third mounting plate 103, and a fourth mounting plate 104 are laminated on the front side of the back plate 14, respectively, and gaps are provided between the first mounting plate 101, the second mounting plate 102, the third mounting plate 103, and the fourth mounting plate 104 and the back plate 14. The electronic components 30 are mounted on the first mounting board 101, the second mounting board 102, the third mounting board 103, and the fourth mounting board 104 such that the electronic components 30 are layered in the front-rear direction with a clear hierarchy.

In some embodiments, referring to fig. 5-7, a plurality of circuit boards 32 are disposed side-by-side and stacked on the same side of the first mounting board 101.

Therefore, the frequency converter has compact structure and high integration level, and improves the power density.

Specifically, the plurality of circuit boards 32 are arranged side by side and stacked on the same side of the first mounting board 101, so that the structure of the inverter cabinet 100 becomes compact, the integration level is high, and the power density is improved. In some embodiments, the circuit board 32 includes a power board, a drive board, and a control board. The power supply board, the drive board, and the control board are laminated on the right side of the first mounting board 101.

In some embodiments, referring to fig. 5-7, a plurality of circuit boards 32 are stacked on a side of the first mounting board 101 facing away from the back plate 14; alternatively, the plurality of circuit boards 32 are laminated on the side of the first mounting board 101 facing the back plate 14.

Specifically, when the plurality of circuit boards 32 are stacked on the side of the first mounting board 101 facing away from the back plate 14, the plurality of circuit boards 32 are mounted on the same side, so that the structure is compact, the integration level is high, and the power density can be improved. The circuit board 32 is stacked on the side of the first mounting board 101 facing away from the back plate 14, i.e. the side of the circuit board 32 facing the opening 12 of the accommodating cavity 20, so as to facilitate installation or maintenance. When the plurality of circuit boards 32 are stacked on the side of the first mounting board 101 facing the back plate 14, the plurality of circuit boards 32 are mounted on the same side, so that the structure is compact, the integration level is high, and the power density can be improved. The circuit board 32 is laminated on the side of the first mounting board 101 facing the back plate 14, i.e., the side of the circuit board 32 facing the back plate 14, so as to protect the circuit board 32.

In some embodiments, referring to fig. 5-7, a plurality of circuit boards 32 are respectively stacked on opposite sides of the first mounting board 101 in the front-rear direction, at least one of the plurality of circuit boards 32 is stacked on a side of the first mounting board 101 facing the back plate 14, and at least one is stacked on a side of the first mounting board 101 facing away from the back plate 14.

Thus, the plurality of circuit boards 32 are stacked and mounted on different sides of the first mounting board 101, the integration level of the circuit boards 32 is high, the number of single boards is reduced, and the power density is improved.

Specifically, the first mounting board 101 has a plurality of circuit boards 32 on opposite sides in the front-rear direction. For the circuit board 32 laminated on the side of the first mounting board 101 facing the back plate 14, it is convenient to protect the circuit board 32; for the circuit board 32 stacked on the side of the first mounting board 101 facing away from the back plate 14, the circuit board 32 faces the opening 12 for easy maintenance and installation.

In certain embodiments, referring to fig. 5-7, the coverage rate of the plurality of circuit boards 32 on one side surface of the first mounting board 101 is not less than 90%; or, the total area of the plurality of circuit boards 32 is not less than 90% of the surface of the first mounting board 101 on one side.

Thus, the coverage rate of the circuit board 32 on the first mounting board 101 is high, so that the frequency converter is compact in structure, and the space utilization rate of the frequency conversion cabinet 100 can be improved.

Specifically, when the coverage rate of the plurality of circuit boards 32 on one side surface of the first mounting board 101 is not less than 90%, in some embodiments, the plurality of circuit boards 32 are arranged side by side on the first mounting board 101, so that the arrangement of the circuit boards 32 is facilitated, and the structure is compact, and the space utilization rate can be improved. When the total area of the plurality of circuit boards 32 is not less than 90% of the surface on the side of the first mounting board 101, in some embodiments, the plurality of circuit boards 32 are connected to each other on the first mounting board 101, so that the structure is compact and the space utilization can be improved.

In some embodiments, referring to fig. 3, the variable frequency cabinet 100 further comprises: the second mounting plate 102, the second mounting plate 102 is provided in the cabinet 10 and laminated on the front side of the first mounting plate 101, and a gap is provided between the second mounting plate 102 and the first mounting plate 101.

In this way, the second mounting plate 102 in the cabinet body 10 is convenient for mounting the first weak current device on the second mounting plate 102, and a gap exists between the second mounting plate 102 and the first mounting plate 101, so that interference between electrical components can be reduced, and heat dissipation is facilitated.

Specifically, the first weak current device is disposed on the second mounting board 102 disposed in the cabinet body 10, and referring to the foregoing, the first weak current device on the second mounting board 102 may include a transformer, a circuit breaker, a 24V power board, a driving board, a control board, an APF, and a filter board. In some embodiments, a transformer, a circuit breaker, and a 24V power board are disposed on an upper side of the second mounting plate 102; the drive board, control board, APF and filter board are disposed on the underside of the second mounting plate 102.

In some embodiments, referring to fig. 2 and 7, the variable frequency cabinet 100 includes an air conditioning unit valve control board 40 and a main control board 42, the air conditioning unit valve control board 40 is used to connect with a control valve 44 of an air conditioning unit, the main control board 42 is connected with the air conditioning unit valve control board 40 and is disposed on the first mounting board 101, and the main control board 42 is opposite to the air conditioning unit valve control board 40 along the front-rear direction.

The air conditioning unit valve control board 40 and the main control board 42 are arranged on the first mounting board 101, so that the air conditioning unit valve control board and the first strong electric device are arranged in a layered manner, interference among electric elements can be reduced, and heat dissipation is facilitated.

Specifically, the air conditioning unit valve control board 40 and the main control board 42 are provided on both sides of the first mounting plate 101, respectively. In some embodiments, air conditioning unit valve control board 40 is disposed on the left side of first mounting plate 101 and main control board 42 is disposed on the right side of first mounting plate 101.

In some embodiments, referring to fig. 3, the second mounting plate 102 is reversibly disposed within the cabinet 10 between an open position and a closed position, the second mounting plate 102 exposing the first mounting plate 101 when open and covering the first mounting plate 101 when closed.

The second mounting plate 102 is disposed inside the cabinet 10 so as to be reversible, and when opened, the first mounting plate 101 is exposed, and when closed, the first mounting plate 101 is covered. In this way, the electronic device 30 on the first mounting board 101 is easily mounted or repaired.

Specifically, the first mounting plate 101 is located at the rear side of the second mounting plate 102, the second mounting plate 102 is disposed in the cabinet 10 in a reversible manner, and when opened, the first mounting plate 101 is exposed, and when closed, the first mounting plate 101 is covered. The first weak current device is installed on the first mounting plate 101, the first weak current device on the first mounting plate 101 can be installed or maintained by opening the second mounting plate 102, and the first weak current device on the first mounting plate 101 can be protected by closing the second mounting plate 102.

In some embodiments, referring to fig. 3, the variable frequency cabinet 100 further comprises: the third mounting plate 103, the third mounting plate 103 is provided in the cabinet 10 and laminated on the front side of the back plate 14, and a gap is provided between the third mounting plate 103 and the back plate 14, the third mounting plate 103 and the second mounting plate 102 are arranged side by side, and the third mounting plate 103 is provided with a first weak current device.

In this way, the third mounting plate 103 in the cabinet body 10 is convenient for mounting the first weak current device on the third mounting plate 103, and a gap exists between the third mounting plate 103 and the back plate 14, so that interference between electrical components can be reduced, and heat dissipation is facilitated.

Specifically, the third mounting board 103 disposed in the cabinet 10 is provided with a first weak current device, and referring to the foregoing, the first weak current device on the first mounting board 101 may include a smart meter and a patch panel. In some embodiments, the patch panel is disposed laterally on the third mounting plate 103, and the smart meter is mounted on the left side of the patch panel. The third mounting plate 103 is arranged side by side with the second mounting plate 102, so that the frequency conversion cabinet 100 is compact.

In some embodiments, at least one of a patch cord, a wiring slot, and a smart meter is disposed on the third mounting plate 103.

In this way, the function of the corresponding electronic device 30 can be realized.

Specifically, referring to the above, the first weak current device is mounted on the third mounting board 103, where the first weak current device may include at least one of a wiring socket, a wiring slot, and a smart meter, and may implement a function corresponding to the electronic device 3030.

In some embodiments, referring to fig. 3, the variable frequency cabinet 100 further comprises: fourth mounting plate 104, fourth mounting plate 104 is provided in cabinet 10 and laminated on the front side of back plate 14, and fourth mounting plate 104 and back plate 14 have a gap therebetween, fourth mounting plate 104 is provided side by side with first mounting plate 101, and fourth mounting plate 104 is provided with a first weak current device.

Specifically, the fourth mounting board 104 disposed in the cabinet 10 is provided with the first weak current device, and referring to the above, the first weak current device on the first mounting board 101 may include a power board. The fourth mounting plate 104 is disposed side by side with the first mounting plate 101, so that the inverter cabinet 100 is compact.

In some embodiments, referring to fig. 3, a portion of fourth mounting plate 104 is stacked on the rear side of third mounting plate 103 and another portion is stacked on the rear side of second mounting plate 102.

In this manner, fourth mounting board 104 may mount larger first weak current devices.

Specifically, referring to the above, in some embodiments, the first mounting plate 101 and the fourth mounting plate 104 are disposed side by side, the second mounting plate 102 and the third mounting plate 103 are disposed side by side, and the second mounting plate 102 and the third mounting plate 103 are located on the front side of the first mounting plate 101 and the fourth mounting plate 104. A part of the fourth mounting board 104 is laminated on the rear side of the third mounting board 103, and the other part is laminated on the rear side of the second mounting board 102, so that the fourth mounting board 104 has a larger area than the third mounting board 103, facilitating the mounting of the first weak electric device by the fourth mounting board 104.

In some embodiments, referring to fig. 3, third mounting plate 103 is hinged to fourth mounting plate 104 in a reversible manner to cover and reveal structures on the rear side of third mounting plate 103.

In this way, the structure of the rear side of the third mounting plate 103 can be covered and exposed.

Specifically, third mounting plate 103 and fourth mounting plate 104 are located on the same side of receiving cavity 20, and third mounting plate 103 is pivotally connected to fourth mounting plate 104 in a reversible manner to cover and reveal the structure of the rear side of third mounting plate 103.

In some embodiments, referring to fig. 4, the accommodating chamber 20 includes a first chamber 201 and a second chamber 202, and the first chamber 201 is configured in a duct structure to dissipate heat from the electronic device 30 in the first chamber 201, and the second chamber 202 is separated from the first chamber 201.

In this way, the electronic device 30 is placed by using the first cavity 201 and the second cavity 202, and the first cavity 201 is configured into a heat dissipation air duct structure, so that the heat dissipation effect of the frequency conversion cabinet 100 can be improved, and the noise of the frequency conversion cabinet 100 can be reduced.

Specifically, the accommodating cavity 20 includes a first cavity 201, and the first cavity 201 is configured to be a heat dissipation air duct structure for dissipating heat, in other words, heat on the electronic device 30 in the first cavity 201 can be taken away through circulation of air flow in the first cavity 201, so as to achieve the purpose of dissipating heat of the electronic device 30. A first strong current device, a first weak current device, and a second strong current device are disposed within the second chamber 202. In some embodiments, the first cavity 201 is a closed cavity, which forms a closed flow path within the cabinet, and the combination of the airflow driver 22 and the first heat sink 2011, which will be described below, may be used to dissipate heat from the electronic device 30 within the first cavity 201. While the second chamber 202 may be provided in an open form, for example, a space outside the first chamber 201 in the cabinet 10 is provided as the second chamber 202, and at this time, since the second chamber 202 is an open space, the installation and maintenance of the electronic device 30 in the second chamber 202 can be facilitated.

In some embodiments, referring to fig. 3 and 4, further comprising: the airflow driving member 22 is disposed in the first cavity 201, and is configured to drive the heat dissipation airflow to circulate in the first cavity 201, and at least one of the plurality of circuit boards 32 is electrically connected to the airflow driving member 22.

In this way, the air flow through the first chamber 201 can be ensured.

Specifically, to facilitate airflow within the first cavity 201, the cabinet 10 may further include an airflow driver 22, where the airflow driver 22 may be configured to drive airflow within the first cavity 201 to form a heat dissipating airflow, and the heat dissipating airflow may be configured to flow through the electronic device 30 and the first heat sink 2011 within the first cavity 201. When the air flow flows through the first radiator 2011, heat in the air flow can be exchanged to the first radiator 2011 to reduce the temperature of the air flow, and cold of the first radiator 2011 can be absorbed for radiating the first cavity 201; when the air flows through the electronic device 30 in the first cavity 201, the cold energy in the air flow can be exchanged to the electronic device 30 in the first cavity 201, and the heat of the electronic device 30 in the first cavity 201 is taken away, so that the heat dissipation of the electronic device 30 in the first cavity 201 is realized. That is, heat of the electronic device 30 in the first cavity 201 is transferred to the first heat sink 2011, and heat dissipation of the electronic device 30 in the first cavity 201 is achieved.

In some embodiments, referring to fig. 4, further comprising: the first heat sink 2011 is disposed in the first cavity 201, and is configured to reduce the temperature in the first cavity 201 by air cooling, and the airflow driving member 22 is configured to drive the heat dissipation airflow to flow through the electronic device 30 and the first heat sink 2011 in the first cavity 201.

As such, the first heat spreader 2011 may dissipate heat from the electronic device 30 within the first cavity 201.

Specifically, the first radiator 2011 may be disposed in the first cavity 201, the first radiator 2011 may provide cold energy, when the heat in the first cavity 201 is reduced by air cooling, the first radiator 2011 may take away the heat in the air and timely radiate the air flow, so that the air flow better radiates heat with the electronic device 30 in the first cavity 201, and the air cooling effect in the first cavity 201 is effectively improved. The heat exchange between the first radiator 2011 and the electronic device 30 in the first cavity 201 is realized through air flow, and the temperature in the first cavity 201 is reduced through air cooling.

In some embodiments, referring to fig. 1, further comprising: the second heat sink 2021 is configured to dissipate heat by thermal conduction to the electronic device 30 within the second cavity 202.

In this manner, the second heat sink 2021 may dissipate heat from the electronic device 30 within the second cavity 202.

Specifically, a second heat sink 2021 corresponding to the second cavity 202 may be provided, and the second heat sink 2021 may be configured to dissipate heat from the electronic device 30 within the second cavity 202 by heat conduction. Thereby effecting heat dissipation from the electronic device 30 within the second cavity 202. Through heat conduction, the heat radiation efficiency and effect can be improved, and the electronic device 30 with higher working temperature can be rapidly radiated.

In some embodiments, referring to fig. 2, further comprising: the door body 18, the door body 18 is connected with the cabinet body 10, and is configured to open and close the accommodating cavity 20, wherein the door body 18 is provided with an electronic device 30.

Thus, with reference to the above, the door 18 is provided to facilitate opening and closing of the accommodating chamber 20.

Specifically, in addition, a door 18 may be installed on the cabinet 10, and the cabinet 10 may be opened and closed by the door 18. Specifically, in some embodiments, the door 18 may be used to open and close the second cavity 202, when the door 18 is opened, the second cavity 202 is opened, so that the installation and enclosure of the electronic device 30 in the second cavity 202 can be facilitated, and the operation state of the variable frequency cabinet 100 can be checked by the electronic device 30 in the second cavity 202, at this time, the first cavity 201 is in a closed state, so that the space in the second cavity 202 is not affected, the second cavity 202 can be maintained in an environment with low humidity and less dust, and the heat dissipation effect, the operation stability and the like of the second cavity 202 are relatively high; when the door 18 is closed, the second cavity 202 is closed, and a relatively closed environment is formed in the second cavity 202, so that the temperature of each place in the second cavity 202 can be relatively uniform under the action of natural convection or other modes, and heat dissipation of the electronic device 30 in the second cavity 202 can be realized to a certain extent.

In some embodiments, door 18 is provided with at least one of a communication module, a display module, a low voltage control module, and a scram button.

Thus, the corresponding functions can be realized by setting at least one of the communication module, the display module, the low-voltage control module and the emergency stop button.

Specifically, at least one of a communication module, a display module, a low-voltage control module and an emergency stop button is arranged on the door body 18, so that the frequency conversion cabinet 100 is compact in structure on one hand, and the corresponding functions can be realized by the modules arranged on the door body 18 on the other hand.

The heating and ventilation equipment provided by the embodiment of the utility model comprises: the variable frequency cabinet 100 and the air conditioning unit in any of the above embodiments are connected to the variable frequency cabinet 100.

In the heating and ventilation device, the plurality of circuit boards 32 are mounted on the first mounting board 101 in a stacked manner, the integration level of the circuit boards 32 is high, the number of single boards is reduced, and the power density is improved.

Specifically, the heating and ventilation device comprising the frequency conversion cabinet 100 in any embodiment of the present utility model, the circuit board 32 in the frequency conversion cabinet 100 is stacked on the inner side surface of the accommodating cavity 20, so that the structure is compact, the heat dissipation is convenient, and the power density of the electrical components is improved.

In some embodiments, the unit control board of the air conditioning unit is integrated on the variable frequency cabinet 100, and the unit control board is in signal communication with the air conditioning unit.

Thus, the unit control board is integrated in the heating and ventilation equipment of the frequency conversion cabinet 100, the structure is compact, and the power density is improved.

Specifically, a unit control board of the air conditioning unit is integrated on the variable frequency cabinet 100, and the unit control board is in signal transmission with the air conditioning unit. The unit control board is integrated in the heating and ventilation equipment of the frequency conversion cabinet 100, so that the structure is compact, and the power density is improved.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A variable frequency cabinet, characterized by comprising:

2. The variable frequency cabinet of claim 1, wherein the plurality of circuit boards are disposed side-by-side and stacked on a same side of the first mounting plate.

3. The variable frequency cabinet of claim 2, wherein the plurality of circuit boards are stacked on a side of the first mounting plate facing away from the back plate;

4. The variable frequency cabinet of claim 1, wherein the plurality of circuit boards are respectively stacked on opposite sides of the first mounting board in a front-rear direction, at least one of the plurality of circuit boards is stacked on a side of the first mounting board facing the back board, and at least one of the plurality of circuit boards is stacked on a side of the first mounting board facing away from the back board.

5. The variable frequency cabinet of any one of claims 1-4, wherein a coverage rate of the plurality of circuit boards on a side surface of the first mounting board is not less than 90%;

6. The variable frequency cabinet of any one of claims 1-4, further comprising:

7. The variable frequency cabinet of claim 6, wherein the variable frequency cabinet comprises an air conditioning unit valve control board and a main control board, the air conditioning unit valve control board is used for connecting a control valve of an air conditioning unit, the main control board is connected with the air conditioning unit valve control board and arranged on the first mounting board, and the main control board is opposite to the air conditioning unit valve control board along the front-back direction.

8. The variable frequency cabinet of claim 6, wherein the second mounting plate is reversibly disposed within the cabinet between an open position and a closed position, the second mounting plate exposing the first mounting plate when open and covering the first mounting plate when closed.

9. The variable frequency cabinet of claim 6, further comprising:

10. The variable frequency cabinet of claim 9, wherein the third mounting plate is provided with at least one of a wiring strip, a wiring slot, and a smart meter.

11. The variable frequency cabinet of claim 9, further comprising:

12. The variable frequency cabinet of claim 11, wherein a portion of the fourth mounting plate is stacked on a rear side of the third mounting plate and another portion is stacked on a rear side of the second mounting plate.

13. The variable frequency cabinet of claim 11, wherein the third mounting plate is reversibly hinged to the fourth mounting plate to cover and reveal structure on a rear side of the third mounting plate.

14. The variable frequency cabinet of claim 1, wherein the receiving cavity comprises a first cavity and a second cavity, and the first cavity is configured in a duct structure to dissipate heat from electronics within the first cavity, the second cavity being spaced apart from the first cavity.

15. The variable frequency cabinet of claim 14, further comprising:

16. The variable frequency cabinet of claim 15, further comprising:

17. The variable frequency cabinet of claim 14, further comprising:

18. The variable frequency cabinet of any one of claims 1-4, further comprising:

wherein, be equipped with electronic device on the door body.

19. The variable frequency cabinet of claim 18, wherein the door body is provided with at least one of a communication module, a display module, a low voltage control module, and a scram button.

20. A heating ventilation apparatus, comprising:

the variable frequency cabinet of any one of claims 1-19;

and the air conditioning unit is connected with the variable frequency cabinet.

21. The heating ventilation apparatus of claim 20, wherein a unit control board of the air conditioning unit is integrated on the variable frequency cabinet, and wherein the unit control board is in signal communication with the air conditioning unit.