CN219421281U - Variable frequency cabinet and heating and ventilation equipment - Google Patents

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, and the containing cavity is configured to contain the electronic device; the first junction box is arranged outside the cabinet body and is positioned on the side face of the cabinet body; the second junction box is arranged outside the cabinet body and is positioned on the back surface of the cabinet body. Above-mentioned frequency conversion cabinet, the outside of the cabinet body is located to first terminal box to be located the side of the cabinet body, the outside of the cabinet body is located to the second terminal box, and is located the back of the cabinet body, and the terminal box is rationally distributed, the customer of being convenient for installs.

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 problems of disordered copper arrangement, unreasonable layout and the like exist.

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, and the containing cavity is configured to contain the electronic device;

the first junction box is arranged outside the cabinet body and is positioned on the side face of the cabinet body;

the second junction box is arranged outside the cabinet body and is positioned on the back surface of the cabinet body.

Above-mentioned frequency conversion cabinet, the outside of the cabinet body is located to first terminal box to be located the side of the cabinet body, the outside of the cabinet body is located to the second terminal box, and is located the back of the cabinet body, and the terminal box is rationally distributed, the customer of being convenient for installs.

In certain embodiments, one of the first junction box and the second junction box is for power input and the other is for power output.

In some embodiments, the variable frequency cabinet further comprises a metal bar electrically connected with the electronic device in the accommodating cavity and extending into the first junction box and the second junction box for power input or power output.

In some embodiments, a positioning block is further disposed in at least one of the first junction box and the second junction box, a portion of the metal bar extending into the junction box corresponds to the positioning block, and the positioning block cooperates with the metal bar to position the cable joint.

In some embodiments, the first junction box is configured for electrical power input, the metal bar includes a first input bar and a second input bar, each of the first input bar and the second input bar extends into the first junction box, and portions of the first input bar and the second input bar within the first junction box are spaced apart, the first input bar and the second input bar being adapted to be independently connected to a power source.

In some embodiments, one of the first input bank and the second input bank is for connection to an ac power grid and the other is for connection to a backup power source.

In some embodiments, a circuit breaker is disposed in the accommodating cavity, an input end of the circuit breaker is connected to the first input row, and an output end of the circuit breaker is connected to the second input row.

In certain embodiments, the receiving cavity comprises a first cavity and a second cavity, and the variable frequency cabinet further comprises:

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;

a second heat sink configured to dissipate heat by thermal conduction from the electronic device within the second cavity;

and an airflow driving member configured to form a heat radiation airflow flowing through the electronic device in the first cavity and the first heat sink in the first cavity.

In some embodiments, the first cavity is disposed along a peripheral wall of the cabinet and is disposed proximate to a back panel of the cabinet, wherein at least a portion of a projection of the first junction box toward a side wall of the cabinet is located on a front side of the first cavity.

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, the outside of the cabinet body is located to first terminal box to be located the side of the cabinet body, the outside of the cabinet body is located to the second terminal box, and is located the back of the cabinet body, and the terminal box is rationally distributed, the customer of being convenient for installs.

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.

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 chamber 20, the first chamber 201, the first heat radiator 2011, the second chamber 202, the second heat radiator 2021, the air flow driving piece 22, the electronic device 30, the first junction box 40, the second junction box 42, the metal row 44, the positioning block 46, the first input row 48, the second input row 50, and the circuit breaker 52.

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 5, a variable frequency cabinet 100 according to an embodiment of the present utility model includes: the cabinet 10, the first junction box 40, and the second junction box 42. Wherein the cabinet 10 is provided with a containing cavity 20, the containing cavity 20 is configured to contain the electronic device 30; the first junction box 40 is arranged outside the cabinet body 10 and is positioned on the side surface of the cabinet body 10; the second junction box 42 is provided outside the cabinet 10 and is located at the rear surface of the cabinet 10.

The frequency conversion cabinet 100 has the advantages that the first junction box 40 is arranged outside the cabinet body 10 and located on the side surface of the cabinet body 10, the second junction box 42 is arranged outside the cabinet body 10 and located on the back surface of the cabinet body 10, and the junction box is reasonable in layout and convenient for a customer to install.

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 junction box 40 and the second junction box 42 are arranged outside the cabinet body 10, wherein the first junction box 40 is positioned on the side surface of the cabinet body 10, and the second junction box 42 is positioned on the back surface of the cabinet body 10. In some embodiments, the first junction box 40 is located on the left side of the cabinet 10 and the second junction box 42 is located on the rear side of the cabinet 10. Therefore, the junction box is reasonable in layout and convenient for a customer to install.

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 52, 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 electronics 30 may include, among other things, absorption resistors, capacitors, IGBTs, transformers, snubber resistors, fans, evaporators, reactors, transformers, diodes. The electronics 30 may include an electronic control board, 2G module, display screen, scram button, control board, guide vane fan board, control board, wiring terminal, smart telegram, transformer, circuit breaker 52, 24V power board, drive board, control board, 380V power board, APF, 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 certain embodiments, referring to fig. 1 and 2, one of the first junction box 40 and the second junction box 42 is used for power input and the other is used for power output.

In this way, the work of the power input and the power output of the first junction box 40 and the second junction box 42 can be completed.

Specifically, one of the first junction box 40 and the second junction box 42 is used for power input, and the other is used for power output. In some embodiments, a first junction box 40 is located on the left side of the cabinet 10, the first junction box 40 is used for power input, a second junction box 42 is located on the rear side of the cabinet 10, and the second junction box 42 is used for power output. In other embodiments, a first junction box 40 is located on the rear side of the cabinet 10, the first junction box 40 is used for power input, a second junction box 42 is located on the left side of the cabinet 10, and the second junction box 42 is used for power output.

In some embodiments, referring to fig. 5, the variable frequency cabinet 100 further includes a metal bar 44, where the metal bar 44 is electrically connected to the electronic device 30 in the accommodating cavity 20 and extends into the first junction box 40 and the second junction box 42 for power input or power output.

In this manner, the metal bar 44 is facilitated to achieve power input or power output.

Specifically, the metal bar 44 is electrically connected to the electronics 30 within the housing cavity 20, and in some embodiments, the metal bar 44 is connected to a circuit breaker 52 in the housing cavity 20 and extends into the first junction box 40 and the second junction box 42 for power input or power output.

In some embodiments, referring to fig. 5, a positioning block 46 is further disposed in at least one of the first junction box 40 and the second junction box 42, and a portion of the metal row 44 extending into the junction box corresponds to the positioning block 46, and the positioning block 46 cooperates with the metal row 44 to position the cable connector.

As such, the locating block 46 is positioned such that the locating block 46 mates with the metal row 44 to locate the cable joint.

Specifically, in some embodiments, a positioning block 46 is provided in the first junction box 40, the positioning block 46 is used for positioning the cable joint, a portion of the metal row 44 extending into the junction box corresponds to the positioning block 46, and the positioning block 46 cooperates with the metal row 44 to position the cable joint.

In certain embodiments, referring to fig. 5, the first junction box 40 is configured for power input, the metal bar 44 includes a first input bar 48 and a second input bar 50, each of the first input bar 48 and the second input bar 50 extends into the first junction box 40, and portions of the first input bar 48 and the second input bar 50 within the first junction box 40 are spaced apart, the first input bar 48 and the second input bar 50 being adapted to be independently connected to a power source.

In this manner, the first input bank 48 and the second input bank 50 are facilitated to achieve power input or power output.

Specifically, the metal row 44 includes a first input row 48 and a second input row 50, the first input row 48 being located above the cabinet 10 and the second input row 50 being located below the cabinet 10. The first input row 48 may include three copper bars arranged at intervals, and the second input row 50 may also include three copper bars arranged at intervals. The first input row 48 and the second input row 50 extend into the first junction box 40, and portions of the first input row 48 and the second input row 50 in the first junction box 40 are spaced apart, i.e., spaced apart from each other by a plurality of copper bars, to facilitate connection of the electronic device 30. The first input bank 48 and the second input bank 50 are adapted to be independently connected to a power source, the first junction box 40 being configured for power input and the second junction box 42 being available for power output.

In some embodiments, referring to fig. 5, one of the first input bank 48 and the second input bank 50 is used to connect to an ac power grid and the other is used to connect to a backup power source.

In this manner, the first input bank 48 and the second input bank 50 are facilitated to achieve power input or power output.

Specifically, one of the first input bank 48 and the second input bank 50 is for connection to an ac power grid, and the other is for connection to a backup power source. In some embodiments, the first input bank 48 is for connection to an ac power grid and the second input bank 50 is for connection to a backup power source; in other embodiments, the first input bank 48 is used to connect to a backup power source and the second input bank 50 is used to connect to an ac power grid.

In some embodiments, referring to fig. 3, a circuit breaker 52 is disposed in the housing cavity 20, an input terminal of the circuit breaker 52 is connected to the first input row 48, and an output terminal of the circuit breaker 52 is connected to the second input row 50.

In this way, the function of the circuit breaker 52 to protect the circuit can be achieved.

As can be seen from the above, the electronic devices 30 in the present utility model may be layered along the depth direction of the cabinet 10, or may be arranged side by side on the back plate 14 of the cabinet 10. Specifically, as shown in fig. 1 and 2, the first junction box 40 is disposed on a side wall of the cabinet body 10 away from the accommodating chamber 20, the circuit breaker 52 is disposed close to the junction box so as to facilitate wiring of the circuit breaker 52, and the circuit breaker 52 is disposed on a current input side of the inverter cabinet 100 to function as a protection circuit, and when a short circuit occurs in the circuit of the inverter cabinet 100 or the current reaches a rated value, the circuit breaker 52 trips to protect the circuit.

In some embodiments of the present utility model, a first cavity 201 is further provided in the accommodating cavity 20, the first cavity 201 is configured in a ring shape surrounding a second cavity 202 and is close to the back plate 14 of the accommodating cavity 20, the circuit breaker 52 is provided in the second cavity 202, and at least a portion of the circuit breaker 52 is located at a different layer in the thickness direction of the cabinet 10 than the first cavity 201, and the circuit breaker 52 is opposite to the first junction box 40 to electrically connect the circuit breaker 52 and the first junction box 40 through the metal bar 44.

Specifically, referring to fig. 4, the first cavity 201 is configured as an annular cavity extending along the direction of the cabinet 10, and the first cavity 201 is disposed near the back plate 14 of the cabinet 10, the front end of the circuit breaker 52 protrudes from the first cavity 201, and the first cavity 201 can avoid the circuit of the circuit breaker 52, so that the circuit of the circuit breaker 52 can avoid the first cavity 201 and be connected with the first junction box 40.

Further, the circuit of the circuit breaker 52 may be electrically connected to the junction box through the metal bar 44, and the metal bar 44 may enhance the effect of electrically connecting the circuit breaker 52 to the first junction box 40, wherein the metal bar 44 may be configured as a copper bar to enhance the conductive effect of the metal bar 44.

In some embodiments, referring to fig. 1 and 4, the accommodating cavity 20 includes a first cavity 201 and a second cavity 202, and the inverter cabinet 100 further includes a first heat sink 2011, a second heat sink 2021, and an airflow driving member 22. Wherein the first heat sink is disposed within the first cavity 201 and configured to reduce the temperature within the first cavity 201 by air cooling; the second heat sink 2021 is configured to thermally conductively dissipate heat from the electronic device 30 within the second cavity 202; the airflow driver 22 is configured to form a heat dissipation airflow within the first cavity 201 that flows through the electronic device 30 within the first cavity 201 and the first heat sink 2011.

In this way, the heat dissipation of the electronic device 30 in the first cavity 201 and the second cavity 202 is facilitated, and the operation stability and the service life of the electronic device 30 in the first cavity 201 and the second cavity 202 can be improved.

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.

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, which may be configured to flow through the electronics 30 within the first cavity 201 and the first heat sink 2011. 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 addition, the accommodating cavity 20 may further include a second cavity 202, and a heat dissipation manner of the electronic device 30 in the second cavity 202 may be different from a heat dissipation manner of the electronic device 30 in the first cavity 201. For example, a second heat sink 2021 may be provided corresponding to the second cavity 202, and the second heat sink 2021 may be configured to dissipate heat by thermal conduction to the electronic device 30 within the second cavity 202. 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.

According to the frequency conversion cabinet 100 provided by the embodiment of the utility model, the first cavity 201 and the second cavity 202 are arranged, the first cavity 201 can exchange heat in an air cooling mode, and the temperature in the first cavity 201 is set by using the first radiator 2011, so that the temperature of the electronic device 30 in the first cavity 201 is set; and the second heat sink 2021 can be used to reduce the temperature of the electronic devices 30 in the second cavity 202, and dissipate heat in different manners, so that different types of electronic devices 30 can be dissipated in a targeted manner, heat conduction between different electronic devices 30 can be reduced, and stability of operation of each electronic device 30 can be improved, meanwhile, interference between different electronic devices 30 can be reduced, stability of the frequency conversion cabinet 100 can be improved, and failure rate can be reduced through isolation of the first cavity 201 and the second cavity 202.

In some embodiments of the present utility model, the first cavity 201 is a closed cavity, which forms a closed flow channel in the cabinet 10, and the combination of the airflow driving member 22 and the first heat sink 2011 may be used to dissipate heat from the electronic device 30 in 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 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 addition, in the present utility model, the second cavity 202 may not be provided with an air flow driving structure such as a fan, so that the electronic device 30 in the second cavity 202 will operate under the noise of the intersection, so that the noise of the frequency conversion cabinet 100 is effectively reduced, and the introduction of external high humidity air, dust-containing air flow, etc. into the second cavity 202 can be avoided, so as to prolong the service life of the electronic device 30 in the second cavity 202; of course, an air flow driving structure such as a fan may be disposed in the second cavity 202, so that sufficient heat exchange of the electronic device 30 in the second cavity 202 may be achieved, the temperature environment of the electronic device 30 in the second cavity 202 may be maintained, and the operation stability and service life of the electronic device 30 in the second cavity 202 may be improved.

The first cavity 201 in the present utility model may be configured as a linear, curved, or folded heat dissipation channel, and the heat dissipation device may take heat away by using the first heat sink 2011 under the driving action of the airflow driving member 22, for example, the heat dissipation airflow may flow in from one end of the first cavity 201 and flow out from the second end of the first cavity 201, which may adversely affect the surrounding environment, and may cause dust-containing airflow in the external environment to enter the first cavity 201 to affect the operation environment in the first cavity 201.

In addition, in the present utility model, the first heat sink 2011 is provided to remove heat in the first cavity 201, and when the heat dissipation airflow in the first cavity 201 circulates, the first heat sink 2011 can be used to remove heat of the electronic device 30 in the second cavity 202. Therefore, in order to reduce the influence on the surrounding environment during the heat dissipation process, the first cavity 201 may be configured as an annular cavity, and the air flow in the first cavity 201 is adapted to circulate to dissipate heat under the driving action of the air flow driving member 22. Through the circulation of the air flow, the temperature in the first cavity 201 can be effectively reduced, the heat dissipation of the electronic device 30 in the first cavity 201 is realized, a better temperature environment is provided for the operation of the electronic device 30 in the first cavity 201, meanwhile, the influence of the heat in the first cavity 201 on the surrounding environment can be reduced, particularly, the influence of the heat in the first cavity 201 on the electronic device 30 in the second cavity 202 can be reduced, and the stability of the whole frequency conversion cabinet 100 is improved. In addition, the first heat sink 2011 also has a condensation function, so that the humidity in the first cavity 201 can be adjusted by using the first heat sink 2011, and the humidity environment of the electronic device 30 in the first cavity 201 can be optimized.

The first chamber 201 of the present utility model may be provided as a circular ring-shaped, elliptical ring-shaped, polygonal ring-shaped or other irregularly shaped annular chamber, and the first chamber 201 of one embodiment of the present utility model will be described with reference to the accompanying drawings.

In some embodiments, referring to fig. 3, the first cavity 201 is disposed along a peripheral wall of the cabinet 10 and is disposed proximate to the back panel 14 of the cabinet 10, wherein at least a portion of the projection of the first junction box 40 toward the side wall of the cabinet 10 is located on the front side of the first cavity 201.

In this manner, access of the electronic device 30 within the first cavity 201 to the first junction box 40 is facilitated.

Specifically, the accommodating chamber 20 is divided into a first chamber 201 and a second chamber 202, the first chamber 201 being a closed annular chamber and being disposed along the peripheral wall of the cabinet 10, and the first chamber 201 being disposed around the second chamber 202. The first junction box 40 is located on the left side of the cabinet 10, and at least a portion of the projection of the first junction box 40 toward the side wall of the cabinet 10 is located on the front side of the first cavity 201. In this manner, the electronic device 30 within the first cavity 201 may pass through the peripheral wall of the cabinet 10 into the first junction box 40, facilitating the entry of the electronic device 30 within the first cavity 201 into the first junction box 40.

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, the cabinet 10 may be provided with a door 18, 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 function of the corresponding module 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.

Above-mentioned heating and ventilation equipment, the outside of cabinet body 10 is located to first terminal box 40 to be located the side of cabinet body 10, the outside of cabinet body 10 is located to second terminal box 42, and is located the back of cabinet body 10, and the terminal box overall arrangement is reasonable, the customer of being convenient for installs.

Specifically, the heating and ventilation device of the variable frequency cabinet 100 in any embodiment includes the first junction box 40 in the variable frequency cabinet 100 disposed outside the cabinet body 10 and located on the side surface of the cabinet body 10, and the second junction box 42 disposed outside the cabinet body 10 and located on the back surface of the cabinet body 10, and the junction box is reasonable in layout and convenient for the installation of clients.

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 (13)

1. A variable frequency cabinet, characterized by comprising:

the electronic device comprises a cabinet body, wherein the cabinet body is provided with a containing cavity, and the containing cavity is configured to contain the electronic device;

the first junction box is arranged outside the cabinet body and is positioned on the side face of the cabinet body;

the second junction box is arranged outside the cabinet body and is positioned on the back surface of the cabinet body.

2. The variable frequency cabinet of claim 1, wherein one of the first junction box and the second junction box is for power input and the other is for power output.

3. The variable frequency cabinet of claim 2, further comprising a metal bar electrically connected to electronics within the receiving cavity and extending into the first junction box and the second junction box for power input or power output.

4. A variable frequency cabinet according to claim 3, wherein a positioning block is further provided in at least one of the first junction box and the second junction box, a portion of the metal bar extending into the junction box corresponds to the positioning block, and the positioning block cooperates with the metal bar to position the cable joint.

5. A variable frequency cabinet according to claim 3, wherein the first junction box is configured for power input, the metal bar comprises a first input bar and a second input bar, each of the first input bar and the second input bar extends into the first junction box, and portions of the first input bar and the second input bar within the first junction box are spaced apart, the first input bar and the second input bar being adapted to be independently connected to a power source.

6. The variable frequency cabinet of claim 5, wherein one of the first input bank and the second input bank is for connection to an ac power grid and the other is for connection to a backup power source.

7. The variable frequency cabinet of claim 5, wherein a circuit breaker is disposed in the housing cavity, an input of the circuit breaker is connected to the first input row, and an output of the circuit breaker is connected to the second input row.

8. The variable frequency cabinet of any one of claims 1-7, wherein the receiving cavity comprises a first cavity and a second cavity, the variable frequency cabinet 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;

a second heat sink configured to dissipate heat by thermal conduction from the electronic device within the second cavity;

and an airflow driving member configured to form a heat radiation airflow flowing through the electronic device in the first cavity and the first heat sink in the first cavity.

9. The variable frequency cabinet of claim 8, wherein the first cavity is disposed along a peripheral wall of the cabinet and adjacent to a back panel of the cabinet, wherein at least a portion of a projection of the first junction box toward a side wall of the cabinet is located on a front side of the first cavity.

10. The variable frequency cabinet of any one of claims 1-7, 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.

11. The variable frequency cabinet of claim 10, 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.

12. A heating ventilation apparatus, comprising:

the variable frequency cabinet of any one of claims 1-11;

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

13. The heating ventilation apparatus of claim 12, wherein a unit control board of the air conditioning unit is integrated on the variable frequency cabinet, and the unit control board is in signal communication with the air conditioning unit.