CN220822878U

CN220822878U - Compressor frequency conversion device

Info

Publication number: CN220822878U
Application number: CN202322031296.0U
Authority: CN
Inventors: 王勇
Original assignee: Changsha Yingweiteng Electric Technology Co ltd
Current assignee: Changsha Yingweiteng Electric Technology Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-04-19
Anticipated expiration: 2033-07-31

Abstract

The application belongs to the technical field of compressor control, and particularly provides a compressor frequency conversion device which comprises a heat dissipation substrate, a driving plate, a control plate, a first support column, a second support column, a rectifying module, an inversion module, a filtering module and a power supply. The integral modularized structure is formed, so that the size of the shell is reduced, and the rectifying module and the inversion module can effectively radiate heat outwards through the radiating substrate without additionally installing a radiating fan in the shell, so that the size of the shell can be further reduced.

Description

Compressor frequency conversion device

Technical Field

The application belongs to the technical field of compressor control, and particularly relates to a compressor frequency conversion device.

Background

The frequency conversion device for the compressor can convert an alternating current power supply with constant voltage and frequency into an alternating current power supply with adjustable voltage and frequency by utilizing the on-off action of the power semiconductor device, thereby adjusting the running speed of the compressor.

The frequency conversion device applied to the compressor needs to be installed in a shell, and the frequency conversion device generally comprises a rectifying module, an inversion module, a filtering module, a power supply, a control assembly and other components, and the components are often installed at different positions in the shell in a scattered manner, so that the integration level is poor.

Disclosure of utility model

The application aims to provide a compressor frequency conversion device, which aims to solve the technical problems that in the prior art, all parts of the frequency conversion device are arranged at different positions in a shell in a scattered manner, the integration level is poor, and the frequency conversion device also comprises a cooling fan, so that the size of the shell is overlarge.

In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides a compressor variable frequency device, including radiating base plate, the drive plate, the control panel, first support column, the second support column, rectifier module, inverter module, filter module and power, the relative both ends of first support column are connected with radiating base plate and drive plate respectively, the control panel is located the drive plate and is connected with drive plate and control panel respectively in the one side of radiating base plate dorsad, rectifier module and inverter module all install on the one side of radiating base plate towards the drive plate, and all with drive plate electric connection, filter module and power are all installed on the drive plate, and all with drive plate electric connection, control panel and drive plate electric connection.

Further, the heat dissipation substrate is an aluminum substrate.

Further, a first heat conducting layer is arranged on one side of the heat dissipation substrate, which is away from the driving plate.

Further, the filter module and the power supply are both installed on the side of the driving plate facing the control board, and the heights of the top of the filter module and the top of the power supply are both greater than the height of the bottom of the driving plate.

Further, the heat dissipation substrate is provided with a mounting hole for the threaded fastener to penetrate through, and a first notch is formed in the position, corresponding to the mounting hole, of the driving plate.

Further, a second notch is formed in the position, corresponding to the first notch, of the control panel.

Further, a second heat conduction layer is arranged between the rectifying module and the heat dissipation substrate and between the inversion module and the heat dissipation substrate.

Further, the number of the first support columns and the second support columns is multiple, the first support columns are distributed at intervals along the circumferential direction of the driving plate, and the second support columns are distributed at intervals along the circumferential direction of the control plate.

Further, a compressor wiring terminal is installed on the driving plate, and a compressor signal sampling terminal, a compressor display screen terminal and a compressor sensor terminal are installed on the control plate.

Further, the compressor terminal is mounted on one end of the drive plate, and the compressor signal sampling terminal, the compressor display screen terminal and the compressor sensor terminal are all mounted on one end of the control board close to the drive plate.

Compared with the prior art, the compressor frequency conversion device provided by the application has the beneficial effects that: through installing rectifier module and contravariant module on radiating basal plate, install filter module and power on the drive plate, utilize first support column and second support column with radiating basal plate, drive plate and control panel are connected as an organic wholely to make the drive plate respectively with rectifier module, contravariant module and control panel electric connection, with this integral modular structure that forms, the integrated level is high, is favorable to reducing the volume of casing, moreover, rectifier module and contravariant module accessible radiating basal plate outwards give off heat effectively, need not additionally to install radiator fan in the casing, thereby can further reduce the volume of casing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a compressor inverter according to an embodiment of the present application;

FIG. 2 is an exploded view of a compressor inverter provided in an embodiment of the present application;

FIG. 3 is an exploded view of a compressor inverter and a first housing according to an embodiment of the present application;

fig. 4 is an exploded schematic view of a compressor inverter and a second housing according to an embodiment of the present application.

Wherein, each reference sign in the figure:

100. A compressor frequency conversion device; 200. a first housing; 300. a second housing;

10. A heat-dissipating substrate; 101. a mounting hole; 11. a driving plate; 111. a third through hole; 112. a first notch; 12. a control board; 121. a fourth through hole; 122. a second notch; 13. a first support column; 131. a third screw hole; 14. a second support column; 141. a fourth screw hole; 15. a rectifying module; 16. an inversion module; 17. a filtering module; 18. a power supply; 19. a first fastener; 20. a second fastener; 21. a third fastener; 22. a fourth fastener; 23. compressor connection terminals; 24. a compressor signal sampling terminal; 25. a compressor display screen terminal; 26. compressor sensor terminals; 27. and (5) debugging the network port.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; 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 application can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 and 2, an embodiment of the present application provides a compressor inverter device 100, which includes a heat dissipation substrate 10, a driving board 11, a control board 12, a first support column 13, a second support column 14, a rectifying module 15, an inverter module 16, a filtering module 17 and a power supply 18, wherein opposite ends of the first support column 13 are respectively connected with the heat dissipation substrate 10 and the driving board 11, the control board 12 is located at a side of the driving board 11 facing away from the heat dissipation substrate 10, opposite ends of the second support column 14 are respectively connected with the driving board 11 and the control board 12, the rectifying module 15 and the inverter module 16 are both mounted on a side of the heat dissipation substrate 10 facing the driving board 11 and are both electrically connected with the driving board 11, the filtering module 17 and the power supply 18 are both mounted on the driving board 11 and are both electrically connected with the driving board 11, and the control board 12 is electrically connected with the driving board 11.

Through installing rectifier module 15 and contravariant module 16 on radiating base plate 10, install filter module 17 and power 18 on drive plate 11, utilize first support column 13 and second support column 14 to connect radiating base plate 10, drive plate 11 and control panel 12 as an organic wholely, and make drive plate 11 respectively with rectifier module 15, contravariant module 16 and control panel 12 electric connection, with this integral modular structure that forms, the integrated level is high, be favorable to reducing the volume of casing, moreover, rectifier module 15 and contravariant module 16 accessible radiating base plate 10 effectively outwards give off the heat, need not additionally to install radiator fan in the casing, thereby can further reduce the volume of casing.

When the traditional frequency conversion device is installed in the shell, all parts of the frequency conversion device are required to be installed in the shell one by one, and the installation efficiency is low. The compressor frequency conversion device 100 provided by the embodiment of the application is beneficial to the integral modularized structure, the compressor frequency conversion device 100 can be integrally installed in or taken out from the shell, so that the installation and maintenance are convenient, in addition, the assembly flexibility is high, and the compressor frequency conversion device 100 can be suitable for various types of shells. As shown in fig. 3, which is an exploded schematic view of the compressor inverter device 100 and the first housing 200, the first housing 200 is a sheet metal type motor housing, and when assembling, the compressor inverter device 100 is vertically placed into the first housing 200 from an opening at the top of the first housing 200, and the heat dissipation substrate 10 is fixed on the bottom of the first housing 200, so that the rectifying module 15 and the inverter module 16 can transfer heat to the first housing 200 through the heat dissipation substrate 10. As shown in fig. 4, which is an exploded view of the compressor inverter device 100 and the second housing 300, the second housing 300 is a profile type motor housing, and when assembling, the compressor inverter device 100 is horizontally pushed into the second housing 300 from both end openings of the second housing 300, and the heat dissipation substrate 10 is fixed on the bottom of the second housing 300, so that the rectifying module 15 and the inverter module 16 can transfer heat to the second housing 300 through the heat dissipation substrate 10.

The conventional frequency conversion device radiates heat to the rectifying module 15 and the inverting module 16 through the cooling fan, and the work of the cooling fan is affected under the environment with more dust, thereby affecting the heat radiation effect. In the compressor frequency conversion device 100 provided by the embodiment of the application, the rectifying module 15 and the inverting module 16 can effectively radiate heat outwards through the radiating substrate 10, and a radiating fan is not required to be additionally arranged in the shell, so that the size of the shell is reduced, the environment with more dust can be adapted, and the radiating effect is effectively ensured.

When the compressor frequency conversion device 100 provided by the embodiment of the application works, the power supply 18 provides a stable power supply 18 for the circuit of the whole compressor frequency conversion device 100, the driving board 11 is electrically connected with the motor of the compressor and is used for driving the motor of the compressor to operate, the rectifying module 15 is used for converting alternating current into direct current, the filtering module 17 is used for filtering harmonic waves and clutter in the direct current, the inverting module 16 is used for converting the direct current into alternating current with variable voltage and frequency, the control board 12 is used for completing control operation and signal processing on the motor of the compressor, the driving board 11 is used for adjusting the voltage and frequency of the alternating current input into the motor of the compressor, and the radiating substrate 10 is used for absorbing heat generated by the rectifying module 15 and the inverting module 16 and transmitting the heat outwards so as to ensure the working performance of the compressor frequency conversion device 100.

In the embodiment of the present application, the inversion module 16 includes an inversion single-tube IGBT, the filtering module 17 includes a capacitor, and the pins of the rectifying module 15 and the pins of the inversion module 16 are welded on the driving board 11 to be electrically connected with the driving board 11.

In another embodiment of the present application, the heat dissipating substrate 10 is an aluminum substrate. The heat dissipation substrate 10 is an aluminum substrate, has good heat conduction performance, can effectively absorb heat of the rectifying module 15 and the inverting module 16 when the heat dissipation substrate 10 is assembled on the shell, and transmits the heat to the shell, so that heat dissipation and cooling of the rectifying module 15 and the inverting module 16 are realized, the working performance of the compressor frequency conversion device 100 is improved, a heat dissipation fan is not required to be additionally arranged in the shell, and the size of the shell is reduced.

In another embodiment of the present application, a side of the heat dissipation substrate 10 facing away from the driving board 11 is provided with a first heat conduction layer. The side of the heat dissipation substrate 10 facing away from the driving plate 11 is used for being connected with the shell, and the first heat conduction layer is located on the side of the heat dissipation substrate 10 facing away from the driving plate 11, namely located between the heat dissipation substrate 10 and the shell, so that heat of the heat dissipation substrate 10 can be effectively transferred to the shell, and the heat dissipation effect is enhanced. The first heat conductive layer may specifically be a heat conductive paste layer.

In another embodiment of the present application, as shown in fig. 1, a heat dissipating substrate 10 is provided with mounting holes 101 through which threaded fasteners are inserted. Specifically, a threaded hole is formed in the housing, and when the compressor inverter device 100 is installed, the compressor inverter device is placed in the housing, the heat dissipation substrate 10 is attached to the housing, the installation hole 101 is aligned with the threaded hole in the housing, and then a screw is threaded with the threaded hole in the housing after passing through the installation hole 101, so that the heat dissipation substrate 10 is in close contact with the housing, and heat of the heat dissipation substrate 10 is effectively transferred to the housing.

In another embodiment of the present application, as shown in fig. 1, a first notch 112 is formed at a position of the driving plate 11 corresponding to the mounting hole 101. By providing the first notch 112 at the position of the driving plate 11 corresponding to the mounting hole 101, in the case where the heat dissipating substrate 10 and the driving plate 11 are assembled together, the threaded fastener such as a screw can still be very conveniently inserted through the mounting hole 101 to fix the heat dissipating substrate 10 on the housing, that is, when assembling, the assembled heat dissipating substrate 10 and the driving plate 11 can be installed in the housing together without separate installation, thereby greatly improving the installation efficiency.

In another embodiment of the present application, as shown in fig. 1, the control board 12 is provided with a second notch 122 corresponding to the position of the first notch 112. By providing the second notch 122 at the position of the control board 12 corresponding to the first notch 112, in the case where the heat dissipating substrate 10, the driving board 11 and the control board 12 are assembled together, the fastening members such as screws can be very conveniently passed through the mounting holes 101 to fix the heat dissipating substrate 10 on the housing, that is, when assembling, the assembled heat dissipating substrate 10, driving board 11 and control board 12 can be mounted in the housing together without separate mounting, thereby greatly improving the mounting efficiency.

In another embodiment of the present application, a second heat conducting layer is disposed between the rectifying module 15 and the heat dissipating substrate 10 and between the inverting module 16 and the heat dissipating substrate 10. The second heat conduction layer arranged between the rectifying module 15 and the heat dissipation substrate 10 can effectively transfer the heat of the rectifying module 15 to the heat dissipation substrate 10, so that the heat dissipation effect of the rectifying module 15 is enhanced, and the second heat conduction layer arranged between the inversion module 16 and the heat dissipation substrate 10 can effectively transfer the heat of the inversion module 16 to the heat dissipation substrate 10, so that the heat dissipation effect of the inversion module 16 is enhanced. The second heat conductive layer may specifically be a heat conductive grease layer.

In another embodiment of the present application, as shown in fig. 2, the rectifying module 15 is provided with a first through hole (not shown), the inverter module 16 is provided with a second through hole (not shown), the heat dissipation substrate 10 is provided with a first screw hole (not shown) communicated with the first through hole, and a second screw hole (not shown) communicated with the second through hole, the compressor inverter device 100 further includes a first fastening member 19 and a second fastening member 20, the first fastening member 19 is threaded with the first screw hole after passing through the first through hole, and the second fastening member 20 is threaded with the second screw hole after passing through the second through hole.

The rectifier module 15 is installed and fixed on the heat-radiating substrate 10 through the first through hole and the first screw hole which are penetrated by the first fastening piece 19, and the rectifier module 15 is tightly contacted with the heat-radiating substrate 10, so that the heat of the rectifier module 15 is effectively transferred to the heat-radiating substrate 10; the inverter module 16 is installed and fixed on the heat dissipation substrate 10 by penetrating the second through hole and the second screw hole through the second fastening member 20, and the inverter module 16 is in close contact with the heat dissipation substrate 10, so as to ensure that heat of the inverter module 16 is effectively transferred to the heat dissipation substrate 10.

In another embodiment of the present application, as shown in fig. 1 and 2, one end of the first support column 13 is fixed on the heat dissipation substrate 10, the other end of the first support column 13 is provided with a third screw hole 131, the driving plate 11 is provided with a third through hole 111 communicated with the third screw hole 131, one end of the second support column 14 is fixed on the driving plate 11, the other end of the second support column 14 is provided with a fourth screw hole 141, the control plate 12 is provided with a fourth through hole 121 communicated with the fourth screw hole 141, the compressor frequency conversion device 100 further comprises a third fastening member 21 and a fourth fastening member 22, the third fastening member 21 is in threaded connection with the third screw hole 131 after passing through the third through hole 111, and the fourth fastening member 22 is in threaded connection with the fourth screw hole 141 after passing through the fourth through hole 121.

The third fastening piece 21 is inserted through the third through hole 111 and the third screw hole 131, so that the driving board 11 is fixed on the first supporting column 13 to stabilize the relative position of the heat dissipation substrate 10 and the driving board 11, and the fourth fastening piece 22 is inserted through the fourth through hole 121 and the fourth screw hole 141, so that the control board 12 is fixed on the second supporting column 14 to stabilize the relative position of the driving board 11 and the control board 12.

In another embodiment of the present application, as shown in fig. 1, the number of the first support columns 13 and the second support columns 14 is plural, the plural first support columns 13 are spaced apart along the circumferential direction of the driving plate 11, and the plural second support columns 14 are spaced apart along the circumferential direction of the control plate 12, so as to improve structural stability.

In another embodiment of the present application, as shown in fig. 1, the filter module 17 and the power source 18 are both installed on the side of the driving board 11 facing the control board 12, and the heights of the top of the filter module 17 and the top of the power source 18 are both greater than the height of the bottom of the control board 12.

The filter module 17 and the power supply 18 are not required to be installed between the control board 12 and the driving board 11, but the filter module 17 and the power supply 18 may be installed in an area other than the area of the driving board 11 corresponding to the control board 12, so that the top of the filter module 17 and the top of the power supply 18 can be higher than the bottom of the control board 12 without being limited below the control board 12, which is advantageous to reduce the overall height of the compressor inverter 100, thereby being advantageous to reduce the volume of the housing.

In another embodiment of the present application, as shown in fig. 1, a compressor connection terminal 23 is mounted on the driving board 11. The compressor connection terminal 23 is used for connecting a compressor to realize electrical connection between the driving board 11 and the compressor. The control board 12 is provided with a compressor signal sampling terminal 24, a compressor display screen terminal 25, and a compressor sensor terminal 26. The control board 12 is electrically connected with the compressor through a compressed signal sampling terminal to collect signals of the compressor, the control board 12 is in communication connection with the compressor display screen through a compressor display screen terminal 25 to display related data on the display screen, and the control board 12 is connected with a compressor sensor through a compressor sensor terminal 26 to control the compressor according to the detection result of the compressor sensor.

In another embodiment of the present application, as shown in fig. 1, the compressor connection terminal 23 is installed at one end of the driving board 11, and the compressor signal sampling terminal 24, the compressor display terminal 25 and the compressor sensor terminal 26 are all installed at one end of the control board 12 near the driving board 11, so that the connection operation can be facilitated, and the cable arrangement is orderly and convenient to manage.

In another embodiment of the present application, as shown in fig. 1, a debug portal 27 for debugging is also installed on the control board 12.

The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.

Claims

1. The utility model provides a compressor variable frequency device, its characterized in that includes radiating substrate, drive plate, control panel, first support column, second support column, rectifier module, contravariant module, filter module and power, the relative both ends of first support column respectively with radiating substrate with the drive plate is connected, the control panel is located the drive plate is dorsad radiating substrate's one side, the relative both ends of second support column respectively with the drive plate with the control panel is connected, rectifier module with contravariant module all installs radiating substrate is towards on the one side of drive plate, and all with drive plate electric connection, filter module with the power is all installed on the drive plate, and all with drive plate electric connection, the control panel with drive plate electric connection.

2. The compressor inverter of claim 1, wherein: the heat dissipation substrate is an aluminum substrate.

3. The compressor inverter of claim 1, wherein: and a first heat conduction layer is arranged on one side of the heat dissipation substrate, which is opposite to the driving plate.

4. The compressor inverter of claim 1, wherein: the filtering module and the power supply are both arranged on one side of the driving plate facing the control plate, and the heights of the top of the filtering module and the top of the power supply are both larger than the height of the bottom of the control plate.

5. The compressor inverter of any one of claims 1-4, wherein: the heat dissipation substrate is provided with a mounting hole for the threaded fastener to penetrate through, and a first notch is formed in the position, corresponding to the mounting hole, of the driving plate.

6. The compressor inverter of claim 5, wherein: the control panel is provided with a second notch at the position corresponding to the first notch.

7. The compressor inverter of any one of claims 1-4, wherein: and a second heat conduction layer is arranged between the rectifying module and the heat dissipation substrate and between the inversion module and the heat dissipation substrate.

8. The compressor inverter of any one of claims 1-4, wherein: the number of the first support columns and the number of the second support columns are multiple, the first support columns are distributed at intervals along the circumferential direction of the driving plate, and the second support columns are distributed at intervals along the circumferential direction of the control plate.

9. The compressor inverter of any one of claims 1-4, wherein: the compressor signal sampling terminal, the compressor display screen terminal and the compressor sensor terminal are arranged on the control board.

10. The compressor inverter of claim 9, wherein: the compressor binding post is installed on the one end of drive plate, compressor signal sampling terminal compressor display screen terminal and compressor sensor terminal all install the control panel is close to on the one end of drive plate.