CN115642782A - Frequency converter and air conditioning equipment - Google Patents
Frequency converter and air conditioning equipment Download PDFInfo
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- CN115642782A CN115642782A CN202211420879.6A CN202211420879A CN115642782A CN 115642782 A CN115642782 A CN 115642782A CN 202211420879 A CN202211420879 A CN 202211420879A CN 115642782 A CN115642782 A CN 115642782A
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Abstract
The invention relates to a frequency converter and air conditioning equipment. The frequency converter comprises a shell, a power device, a capacitor assembly and an electric connector; a first chamber and a second chamber are arranged in the shell; the power device is arranged in the first cavity, and the capacitor assembly is arranged in the second cavity; the electric connectors extend from the first cavity to the second cavity and are respectively connected with the power device in the first cavity and connected with the capacitor assembly in the second cavity. Above-mentioned converter sets up first cavity and second cavity to set up power device and capacitor assembly respectively in first cavity and second cavity, can dispel the heat to power device and capacitor assembly respectively in first cavity and second cavity on the one hand, on the other hand can also play the effect of keeping apart to power device and capacitor assembly, based on above two aspects, can avoid the heat formation high temperature that the power device produced in the course of the work and produce the interference to capacitor assembly, thereby just can improve the reliability of converter.
Description
Technical Field
The invention relates to the technical field of frequency converters, in particular to a frequency converter and air conditioning equipment.
Background
The power device of converter can produce very big heat in the course of the work, and the overall arrangement mode of each device is unreasonable in current converter, and these heats can not effectively and give off the external world fast to can lead to the temperature rise in the converter, under the higher condition of temperature in the converter, the normal work of other parts in the converter can receive the influence, also can influence the reliability of converter.
Disclosure of Invention
The invention provides a frequency converter and air conditioning equipment, and aims to solve the technical problems that related parts cannot work stably and the reliability of the frequency converter is low due to unreasonable layout of all devices in the frequency converter in the prior art.
The invention provides a frequency converter, which comprises a shell, a power device, a capacitor assembly and an electric connector, wherein the shell is provided with a plurality of through holes; a first chamber and a second chamber are arranged in the shell; the power device is arranged in the first cavity, and the capacitor assembly is arranged in the second cavity; the electric connectors extend from the first cavity to the second cavity, and are respectively connected with the power device in the first cavity and connected with the capacitor assembly in the second cavity.
The capacitor assembly comprises a capacitor mounting piece and a plurality of capacitors, the capacitor mounting piece is fixed in the second cavity, and the capacitors are connected and fixed on the capacitor mounting piece.
Wherein the capacitor is a thin film capacitor.
Each thin film capacitor is arranged along the horizontal direction, and a plurality of thin film capacitors are arranged in a column along the longitudinal direction.
The capacitor mounting part comprises brackets and a fixed seat which are arranged at intervals along the horizontal direction; one end of the thin film capacitor is fixedly connected with the fixed seat; the support is provided with a mounting hole, and the thin film capacitor is inserted in the mounting hole.
The electric connecting piece comprises a first insulating layer, a second insulating layer and a third insulating layer, as well as a positive electrode layer arranged between the first insulating layer and the second insulating layer and a negative electrode layer arranged between the second insulating layer and the third insulating layer; the electric connector comprises a first connecting part and a second connecting part which are connected, the first connecting part is arranged in the first cavity, and the second connecting part is arranged in the second cavity; a first connecting part, wherein a first connecting hole is formed in the positive electrode layer and the negative electrode layer and is used for being connected with a power device; and second connecting holes are formed in the second connecting part, the positive electrode layer and the negative electrode layer and are used for being connected with the capacitor assembly.
Wherein, at the first connection portion, the positive electrode layer and the negative electrode layer are provided with first lugs protruding outwards, and the first connection holes are arranged on the first lugs; an avoidance groove is formed in the positive electrode layer and is flush with the first ear part of the positive electrode layer, and the first ear part of the negative electrode layer penetrates through the avoidance groove and is flush with the first ear part of the positive electrode layer; or, be provided with on the negative pole layer and dodge the groove, dodge the groove with the first ear parallel and level of negative pole layer, the first ear of positive pole layer passes dodge the groove, and with the first ear parallel and level of negative pole layer.
And the first connecting part, the positive electrode layer and the negative electrode layer are provided with second lug parts protruding outwards, and the second lug parts are provided with one or more third connecting holes.
The electric connecting piece is provided with a first positioning hole and a second positioning hole; the first positioning hole penetrates through the first insulating layer to expose the positive electrode layer, the second positioning hole penetrates through the first insulating layer and the second insulating layer to expose the negative electrode layer, and the positive electrode layer is not exposed at the second positioning hole; or, the first positioning hole penetrates through the third insulating layer to expose the negative electrode layer, the second positioning hole penetrates through the third insulating layer and the second insulating layer to expose the positive electrode layer, and the negative electrode layer is not exposed at the second positioning hole.
The air conditioning equipment provided by the invention comprises the frequency converter.
Compared with the prior art, the frequency converter and the air conditioning equipment provided by the invention have the following advantages:
according to the frequency converter provided by the invention, the first cavity and the second cavity are arranged in the shell of the frequency converter, the power device and the capacitor assembly are respectively arranged in the first cavity and the second cavity, and the capacitor assembly is electrically connected with the power device through the electric connection piece penetrating through the first cavity and the second cavity; the basic function requirements of the power device and the capacitor assembly are met, on one hand, the power device and the capacitor assembly can be cooled in the first cavity and the second cavity respectively, on the other hand, the power device and the capacitor assembly can be isolated, on the basis of the two aspects, the heat generated by the power device in the working process can be prevented from forming high temperature and interfering the capacitor assembly, therefore, the normal work of all devices including the power device and the capacitor assembly can be guaranteed, and the reliability of the frequency converter is improved.
The air conditioning equipment provided by the invention comprises the frequency converter, has the beneficial effect consistent with that of the frequency converter, and is not described again.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a frequency converter in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a capacitor assembly and an electrical connector of the frequency converter shown in FIG. 1;
FIG. 3 is a schematic view of the capacitor assembly and the electrical connector of FIG. 2 secured within a housing;
FIG. 4 is a schematic structural view of the fixing base;
FIG. 5 is a schematic structural view of a stent;
FIG. 6 is a schematic view of an electrical connector;
FIG. 7 is a schematic view of the structure of the positive electrode layer;
fig. 8 is a schematic structural view of the negative electrode layer.
In the figure:
10-a housing; 11-a first chamber; 12-a second chamber; 13-a first separator; 14-a second separator; 15-opening;
20-power devices; 30-a capacitive component;
31-a capacitive mount; 311-a stent; 3111-mounting holes; 312-a fixed seat; 3121-a fixation hole;
32-capacitance; 40-electrical connections; 40 a-a first connection; 40 b-a second connecting portion;
41-a first insulating layer; 42-a second insulating layer; 43-a third insulating layer; 44-positive electrode layer; 45-negative electrode layer;
441-a first connection hole; 442-second connection hole; 443-a first ear; 444-avoidance slot; 445-second ear; 446-third connection hole;
451-a first connection aperture; 452 — a second connection hole; 453-first ear; 454-a flexible bending zone; 455-a second ear; 456-third connection hole;
461-first positioning hole; 462-second positioning hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Embodiments of an inverter and an air conditioner according to the present invention will be described below with reference to the accompanying drawings.
In one embodiment of the frequency converter of the present invention, referring to fig. 1, the frequency converter comprises a housing 10, a power device 20, a capacitive assembly 30 and an electrical connection 40.
A first chamber 11 and a second chamber 12 are provided in the housing 10. Different devices are respectively installed in the first chamber 11 and the second chamber 12, wherein the power device 20 is arranged in the first chamber 11, and the capacitor assembly 30 is arranged in the second chamber 12.
Specifically, an air inlet and an air outlet are respectively arranged in the first chamber 11 and the second chamber 12, and a heat dissipation air duct is formed. Fans are respectively arranged in the first chamber 11 and the second chamber 12 to form airflow flowing through the heat dissipation air duct, so as to dissipate heat of each device installed in the first chamber 11 and the second chamber 12. The independent heat radiator is arranged in the first chamber 11, so that the first chamber 11 has stronger heat radiation performance to radiate the power device 20 with larger heat productivity, and the heat generated by the power device 20 in the working process is prevented from being transmitted to the outside in time, and the heat is accumulated in the first chamber 11 to form high temperature.
The electrical connectors 40 extend from the first chamber 11 to the second chamber 12 and are connected with the power device 20 in the first chamber 11 and the capacitor assembly 30 in the second chamber 12, respectively.
In this embodiment, a first chamber 11 and a second chamber 12 are provided in the housing 10 of the frequency converter, and the power device 20 and the capacitor assembly 30 are respectively provided in the first chamber 11 and the second chamber 12, and the capacitor assembly 30 and the power device 20 are electrically connected by an electrical connector 40 passing through the first chamber 11 and the second chamber 12; the basic functional requirements of the power device 20 and the capacitor assembly 30 are met, on one hand, the power device 20 and the capacitor assembly 30 can be respectively cooled in the first cavity 11 and the second cavity 12, on the other hand, the power device 20 and the capacitor assembly 30 can be isolated, and on the basis of the two aspects, the heat generated by the power device 20 in the working process can be prevented from forming high temperature and interfering the capacitor assembly 30, so that the normal work of all devices including the power device 20 and the capacitor assembly 30 can be guaranteed, and the reliability of the frequency converter is improved.
In one embodiment of the frequency converter, as shown in fig. 2-3, the capacitive assembly 30 includes a capacitive mount 31 and a plurality of capacitors 32. The capacitive mounting element 31 is fixed in the second chamber 12, in particular by welding. The plurality of capacitors 32 are connected and fixed to the capacitor mounting member 31. A plurality of capacitors 32 may be secured within the second chamber 12 by a capacitor mount 31.
In this embodiment, the capacitor 32 may be a thin film capacitor. The thin film capacitor has the characteristics of high reliability and large unit volume. The film capacitor is selected as the capacitor 32, so that the number of the capacitors 32 can be reduced, and the working stability and reliability of the capacitor 32 can be improved, thereby ensuring that the frequency converter works continuously and safely.
In one embodiment of the frequency converter, each thin film capacitor is arranged in a horizontal direction, and a plurality of thin film capacitors are arranged in a column in a vertical direction. The arrangement can more reasonably and effectively utilize the inner space of the frequency converter.
As shown in fig. 1 and 3, the first chamber 11 and the second chamber 12 in the housing 10 may be formed by a partition. Specifically, a first partition plate 13 and a second partition plate 14 may be disposed in the housing 10, and the first partition plate 13 and the second partition plate 14 partition the first chamber 11 and the second chamber 12 in the housing 10, and partition a third chamber above the first chamber 11 and the second chamber 12. That is, the housing 10 includes therein a first chamber 11 and a second chamber 12 which are located on the lower side and juxtaposed right and left on the lower side, and a third chamber located on the upper side.
In one embodiment of the frequency converter, as shown in fig. 4 and 5 in combination with fig. 1 to 3, the capacitor mounting member 31 includes a bracket 311 and a fixing base 312 spaced apart in a horizontal direction. The bracket 311 and the fixing seat 312 are fixed in the housing 10, and specifically, the bracket 311 and the fixing seat 312 of the capacitor mounting component 31 may be fixed to a wall plate of the housing 10, and to the first partition plate 13 and the second partition plate 14, respectively, by welding or the like.
In this embodiment, one end of the thin film capacitor is fixedly connected to the fixing base 312; the bracket 311 is provided with a mounting hole 3111, and the thin film capacitor is inserted in the mounting hole 3111. According to the above arrangement, the capacitor mounting member 31 can fix and support the thin film capacitor at different positions in the length direction of the thin film capacitor, thereby firmly fixing and mounting the thin film capacitor.
Specifically, as for the fixing base 312, a fixing hole 3121 is provided on the fixing base 312, and the film capacitor and the fixing base 312 are fixed by a screw passing through the fixing hole 3121. For the holder 311, the aperture of the mounting hole 3111 provided thereon may be slightly larger than the aperture of the film capacitor (for example, the aperture of the mounting hole 3111 may be 2mm larger than the diameter of the film capacitor) to accommodate machining errors, mounting errors, and the like of the film capacitor and the holder 311.
In one embodiment of the frequency converter, as shown in fig. 6 to 8, the electrical connection member 40 includes a first insulation layer 41, a second insulation layer 42, and a third insulation layer 43, and a positive electrode layer 44 disposed between the first insulation layer 41 and the second insulation layer 42, and a negative electrode layer 45 disposed between the second insulation layer 42 and the third insulation layer 43.
The positive electrode layer 44 and the negative electrode layer 45 are staggered in pattern, that is, the positive electrode layer 44 and the negative electrode layer 45 have respective projections with respect to the other in the pattern shape, and have an overlapping region or an non-overlapping region. The positive electrode layer 44 and the negative electrode layer 45 may be made of copper or the like.
The electrical connector 40 includes a first connection portion 40a and a second connection portion 40b connected. The first connection portion 40a is disposed in the first chamber 11, and the second connection portion 40b is disposed in the second chamber 12. In connection with fig. 3, the electrical connection 40 may extend into the first chamber 11 and the second chamber 12, respectively, through the opening 15 between the first partition 13 and the second partition 14, i.e. the opening 15 between the first chamber 11 and the second chamber 12.
In the first connection portion 40a, the positive electrode layer 44 and the negative electrode layer 45 are provided with first connection holes 441, 451, respectively, the first connection holes 441, 451 being used for connection with the power device 20. In the second connection portion 40b, the positive electrode layer 44 and the negative electrode layer 45 are respectively provided with second connection holes 442 and 452, and the second connection holes 442 and 452 are used for connecting with the capacitor assembly 30, specifically, the capacitor 32.
In this embodiment, the first connection portion 40a in the first chamber 11 may be disposed in a horizontal direction, and the second connection portion 40b in the second chamber 12 may be disposed in a vertical direction, which are connected, and may be formed in a T-shaped structure. Since the electrical connection members 40 connect the power device 20 located in the first chamber 11 and the capacitor assembly 30 located in the second chamber 12 through the positive electrode layer 44 and the negative electrode layer 45, it can be understood that the pattern shapes of the positive electrode layer 44 and the negative electrode layer 45 are also represented as T-shaped structures, respectively, as shown in fig. 7 and 8.
As shown in fig. 7 and 8, in the first connection portion 40a, the positive electrode layer 44 and the negative electrode layer 45 are provided with first ear portions 443, 453 protruding outward, the first connection hole 441 is provided on the first ear portion 443, and the first connection hole 451 is provided on the first ear portion 453. Meanwhile, an escape groove 444 is provided in the positive electrode layer 44, the escape groove 444 being flush with the first ear portion 443 of the positive electrode layer 44, and the first ear portion 453 of the negative electrode layer 45 passing through the escape groove 444 and being flush with the first ear portion 443 of the positive electrode layer 44.
In this embodiment, by providing the avoidance groove 444, the first ear 443 of the positive electrode layer 44 and the first ear 453 of the negative electrode layer 45 are flush, which facilitates the connection with the power device 20 and achieves a good connection effect.
Of course, in another embodiment of the frequency converter, unlike the above-described embodiment in which the avoidance groove 444 is provided on the positive electrode layer 44, an avoidance groove may be further provided on the negative electrode layer 45, the avoidance groove provided on the negative electrode layer 45 being flush with the first ear portion 453 of the negative electrode layer 45, and the first ear portion 443 of the positive electrode layer 44 passing through the avoidance groove and being flush with the first ear portion 453 of the negative electrode layer 45. This arrangement also achieves the same effect as the above-described arrangement of the avoidance groove 444 on the positive electrode layer 44, and will not be described in detail.
As shown in fig. 8 in conjunction with fig. 6 and 7, in second connection portion 40b, negative electrode layer 45 is provided with flexible bent region 454, and flexible bent region 454 is located in a region of negative electrode layer 45 that does not overlap positive electrode layer 44. The flexible bending region 454 has a characteristic of flexibly changing a shape, and according to this characteristic, the form of the flexible bending region 454 is changed, and the region of the negative electrode layer 45 where the second connection hole 452 is provided may be flush with the positive electrode layer 44, that is, flush with the region of the positive electrode layer 44 where the first connection hole 451 is provided, so that the connection with the capacitor assembly 30 may be facilitated, and a better connection effect may be obtained.
Naturally, the same effects as described above can be achieved by providing the flexible bent region on the positive electrode layer 44 and changing the form of the flexible bent region provided on the positive electrode layer 44 so that the region where the second connection hole 442 is provided on the positive electrode layer 44 is flush with the region where the second connection hole 452 is provided on the negative electrode layer 45.
In one embodiment of the frequency converter, as shown in fig. 7 and 8, second ear portions 445 and 455 protruding outward are provided on the first connection portion 40a, the positive electrode layer 44 and the negative electrode layer 45, one or more third connection holes 446 are provided on the second ear portion 445, and one or more third connection holes 456 are provided on the second ear portion 455.
In this embodiment, by providing the second ears 445 and 455 and the third connection holes 446 and 456, the connection of the power device 20, the capacitance assembly 30 and other devices in the frequency converter can be realized through the electrical connection member 40, for example, the rectification module, the filtering module, the current sampling module and the like can be connected through the third connection holes 446 and 456.
In one embodiment of the frequency converter, the electrical connector 40 is provided with a first positioning hole 461 and a second positioning hole 462. The first positioning hole 461 penetrates the first insulating layer 41 to expose the positive electrode layer 44, the second positioning hole 462 penetrates the first insulating layer 41 and the second insulating layer 42 to expose the negative electrode layer 45, and the positive electrode layer 44 is not exposed at the second positioning hole 462.
In this embodiment, by providing the first positioning hole 461 and the second positioning hole 462, it is possible to avoid the occurrence of the problems of misalignment and slippage, etc. when the first insulating layer 41, the second insulating layer 42, and the third insulating layer 43 are attached to the positive electrode layer 44 and the negative electrode layer 45 to form the electrical connection member 40.
Of course, in another embodiment of the frequency converter, it is also possible to provide that the first positioning hole 461 penetrates the third insulating layer 43 to expose the negative electrode layer 45, the second positioning hole 462 penetrates the third insulating layer 43 and the second insulating layer 42 to expose the positive electrode layer 44, and the negative electrode layer 45 is not exposed at the second positioning hole 462. This arrangement also makes it possible to avoid problems such as misalignment and slippage when the first insulating layer 41, the second insulating layer 42, and the third insulating layer 43 are attached to the positive electrode layer 44 and the negative electrode layer 45 to form the electrical connector 40.
In summary, in the frequency converter provided in the above embodiment of the present invention, the first cavity 11 and the second cavity 12 are disposed in the housing 10 of the frequency converter, and the power device 20 and the capacitor assembly 30 are respectively disposed in the first cavity 11 and the second cavity 12, and the capacitor assembly 30 and the power device 20 are electrically connected through the electrical connector 40 passing through the first cavity 11 and the second cavity 12; the basic functional requirements of the power device 20 and the capacitor assembly 30 are met, on one hand, the power device 20 and the capacitor assembly 30 can be respectively cooled in the first cavity 11 and the second cavity 12, on the other hand, the power device 20 and the capacitor assembly 30 can be isolated, and on the basis of the two aspects, the heat generated by the power device 20 in the working process can be prevented from forming high temperature and interfering the capacitor assembly 30, so that the normal work of all devices including the power device 20 and the capacitor assembly 30 can be guaranteed, and the reliability of the frequency converter is improved.
In one embodiment of the air conditioning apparatus of the present invention, the air conditioning apparatus includes the inverter described in the above embodiment.
The air conditioning equipment in the embodiment of the invention, which comprises the frequency converter, has the beneficial effects consistent with those of the frequency converter, and is not described again.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The above description is merely illustrative of particular embodiments of the invention that enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A frequency converter is characterized by comprising a shell, a power device, a capacitor assembly and an electric connector;
a first chamber and a second chamber are arranged in the shell; the power device is arranged in the first cavity, and the capacitor assembly is arranged in the second cavity;
the electric connectors extend from the first cavity to the second cavity, and are respectively connected with the power device in the first cavity and connected with the capacitor assembly in the second cavity.
2. The frequency converter of claim 1, wherein said capacitor assembly comprises a capacitor mount and a plurality of capacitors, said capacitor mount being secured within said second chamber and a plurality of said capacitor connections being secured to said capacitor mount.
3. The frequency converter of claim 2, wherein the capacitor is a thin film capacitor.
4. The frequency converter according to claim 3, wherein each of said thin film capacitors is arranged in a horizontal direction, and a plurality of said thin film capacitors are arranged in a column in a vertical direction.
5. The frequency converter of claim 3, wherein the capacitive mount comprises brackets and mounts spaced apart in a horizontal direction;
one end of the thin film capacitor is fixedly connected with the fixed seat;
the support is provided with a mounting hole, and the thin film capacitor is inserted in the mounting hole.
6. The frequency converter according to claim 1, wherein the electrical connections comprise a first, a second and a third insulating layer, and a positive electrode layer disposed between the first and second insulating layers, a negative electrode layer disposed between the second and third insulating layers;
the electric connector comprises a first connecting part and a second connecting part which are connected, the first connecting part is arranged in the first cavity, and the second connecting part is arranged in the second cavity;
a first connecting part, wherein a first connecting hole is formed in the positive electrode layer and the negative electrode layer and is used for being connected with a power device; and second connecting holes are formed in the second connecting part, the positive electrode layer and the negative electrode layer and are used for being connected with the capacitor assembly.
7. The frequency converter according to claim 6, wherein a first lug protruding outward is provided on the positive electrode layer and the negative electrode layer at the first connection portion, and the first connection hole is provided on the first lug;
an avoidance groove is formed in the positive pole layer and is flush with the first lug part of the positive pole layer, and the first lug part of the negative pole layer penetrates through the avoidance groove and is flush with the first lug part of the positive pole layer; or
Be provided with on the negative pole layer and dodge the groove, dodge the groove with the first ear parallel and level of negative pole layer, the first ear of positive pole layer passes dodge the groove, and with the first ear parallel and level of negative pole layer.
8. The frequency converter according to claim 6, wherein a second ear portion protruding outwards is arranged on the first connecting portion, the positive electrode layer and the negative electrode layer, and one or more third connecting holes are arranged on the second ear portion.
9. The frequency converter according to claim 6, wherein the electrical connector is provided with a first positioning hole and a second positioning hole;
the first positioning hole penetrates through the first insulating layer to expose the positive electrode layer, the second positioning hole penetrates through the first insulating layer and the second insulating layer to expose the negative electrode layer, and the positive electrode layer is not exposed at the second positioning hole; or
The first positioning hole penetrates through the third insulating layer, the negative electrode layer is exposed, the second positioning hole penetrates through the third insulating layer and the second insulating layer, the positive electrode layer is exposed, and the negative electrode layer is not exposed at the second positioning hole.
10. An air conditioning apparatus, characterized in that the air conditioning apparatus comprises the inverter of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211420879.6A CN115642782A (en) | 2022-11-11 | 2022-11-11 | Frequency converter and air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211420879.6A CN115642782A (en) | 2022-11-11 | 2022-11-11 | Frequency converter and air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115642782A true CN115642782A (en) | 2023-01-24 |
Family
ID=84947879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211420879.6A Pending CN115642782A (en) | 2022-11-11 | 2022-11-11 | Frequency converter and air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115642782A (en) |
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2022
- 2022-11-11 CN CN202211420879.6A patent/CN115642782A/en active Pending
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