CN207761898U - Compressor and refrigeration equipment - Google Patents
Compressor and refrigeration equipment Download PDFInfo
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- CN207761898U CN207761898U CN201820007921.4U CN201820007921U CN207761898U CN 207761898 U CN207761898 U CN 207761898U CN 201820007921 U CN201820007921 U CN 201820007921U CN 207761898 U CN207761898 U CN 207761898U
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Abstract
The utility model provides a kind of compressor and refrigeration equipment, wherein compressor includes：Shell；Magneto is arranged in shell, and magneto includes polyphase windings；Frequency converter, frequency converter are connected with magneto；Star triangle change-over switch, it is arranged on the circuit of connection frequency converter and magneto, when the rotating speed of magneto is less than or equal to critical speed, star triangle change-over switch acts so that the winding of magneto is in star-like connection, when the rotating speed of magneto is more than critical speed, star triangle change-over switch acts so that the connection triangular in shape of the winding of magneto；Wherein, when the rotating speed of magneto is more than critical speed and less than maximum running speed, the maximum virtual value of the line current of frequency converter output is less than or equal to 22.5A/mm with the ratio of the summation of the sectional area of the parallel conductor per phase winding2.Compressor provided by the utility model can realize the effect of full frequency band function admirable, improve the reliability and power density of equipment.
Description
Technical field
The utility model is related to Compressor Technology fields, in particular to a kind of compressor and refrigeration equipment.
Background technology
Higher and higher with requiring household electrical appliance efficiency, compressor full frequency band high energy efficiency becomes industry research in recent years
Emphasis.Frequency-changeable compressor generally uses magneto to drive, permanent magnet frequency conversion motor expectation parameter at the low rotational speed and in height
Expectation parameter under rotating speed has paradox, therefore traditional fixation winding is connected and fixed the magneto full frequency band synthesis of parameter
Limited performance.
To solve the above problems, in recent years, winding technique, which can be switched, becomes the hot subject of industry research.Therefore star three
The corresponding winding of magneto of angular winding switching is also required to existing product in difference compressor industry and is designed.
Utility model content
At least one in order to solve the above-mentioned technical problem, the embodiment of the first aspect of the utility model proposes a kind of pressure
Contracting machine.
A kind of second aspect embodiment of the utility model, it is also proposed that refrigeration equipment.
In view of this, the embodiment of first aspect according to the present utility model, the utility model proposes a kind of compressor,
Including：Shell；Magneto is arranged in shell, and magneto includes polyphase windings；Frequency converter, frequency converter and magneto
It is connected；Star triangle change-over switch is arranged on the circuit of connection frequency converter and magneto, when the rotating speed of magneto is less than
When equal to critical speed, star triangle change-over switch acts so that the winding of magneto is in star-like connection, when turning for magneto
When speed is more than critical speed, star triangle change-over switch acts so that the connection triangular in shape of the winding of magneto；Wherein, work as permanent magnetism
The rotating speed of motor is more than critical speed and when less than maximum running speed, the maximum virtual value of the line current of frequency converter output with it is every
The ratio of the summation of the sectional area of the parallel conductor of phase winding is less than or equal to 22.5A/mm2。
Compressor provided by the utility model enables magneto in compressor by the way that star triangle change-over switch is arranged
It is enough to be run in a manner of star-like connection when rotating speed is less than or equal to critical speed, and when rotating speed is more than critical speed with triangle
Connection type is run so that compressor and magneto can realize the effect of full frequency band function admirable, and improve equipment
Reliability and power density, in order to the Miniaturization Design of equipment.In addition, can realize the frequency converter output of bigger in this configuration
Line current maximum virtual value and winding parallel conductor sectional area summation ratio, you can with promoted frequency converter output
Line current maximum virtual value or use the smaller winding of conductor cross sectional area.
In addition, the compressor in above-described embodiment provided by the utility model can also have following additional technical feature：
In the above-mentioned technical solutions, it is preferable that the radical of the parallel conductor of winding is one or more.
In the technical scheme, winding includes one or more parallel conductor, the setting in order to winding and promotion pressure
The power of contracting machine.Wherein, if winding is believed that the radical of the parallel conductor of this winding is one when only including a conductor.
In any of the above-described technical solution, it is preferable that the sectional area of multiple parallel conductors is equal.
In the technical scheme, the parallel conductor that can preferentially select sectional area equal, ensure compressor power supply after it is each simultaneously
The Load Balanced for joining conductor, is conducive to extend the service life of compressor and magneto.
In any of the above-described technical solution, it is preferable that the cross section of the parallel conductor of winding is round or polygon.
In the technical scheme, the cross section of parallel conductor is round or polygon in winding, and cross section is circular leads
For body convenient for winding and manufacture, suitability is strong；Cross section is to be not easy to loosen after the conductor of polygon (such as rectangle) is wound, reliability
By force.
In any of the above-described technical solution, it is preferable that magneto includes three-phase windings.
In the technical scheme, magneto includes three-phase windings, i.e., magneto is three phase electric machine, and three phase electric machine is general
Property good, stable conditions, be suitable for most of use occasion.
In any of the above-described technical solution, it is preferable that when the rotating speed of magneto is more than critical speed and less than maximum fortune
When row rotating speed, the ratio of the maximum virtual value and the summation of the sectional area of the parallel conductor per phase winding of the line current of frequency converter output
Value is more than or equal to 8A/mm2。
In the technical scheme, when magneto is in the operation of high rotating speed, the maximum of the line current of frequency converter output has
The ratio of valid value and the summation of the sectional area of the parallel conductor per phase winding is more than or equal to 8A/mm2, so that the power of magneto
Density and the higher level of property retention.
In any of the above-described technical solution, it is preferable that further include：Detection device, detection device are connected with magneto,
Rotating speed for detecting magneto；Controller, controller are respectively connected with detection device, frequency converter, and controller is used for root
According to the line current of the rotating speed control frequency converter output of magneto.
In the technical scheme, further include detection device and controller, in order to switch star according to the rotating speed of magneto
Shape and triangle connection type and the line current of control frequency converter output so that magneto can keep good in full frequency band
Runnability.
In any of the above-described technical solution, it is preferable that magneto further includes：Stator, including stator core, winding winding
On stator core；Rotor is arranged in the installation cavity of stator.
In the technical scheme, winding is wrapped on stator core, and rotor is arranged in the installation cavity of stator, and compressor is logical
Rotor banding moves compression unit movement after electricity, and then realizes the compression for coolant media.
In any of the above-described technical solution, it is preferable that further include：First connecting terminal is arranged on shell, the first wiring
Terminal includes multiple first binding posts；Second connecting terminal is arranged on shell, and the second connecting terminal includes multiple second wiring
Column；Winding includes the coil of multiple parallel connections, and coil includes the first connector and the second connector, multiple first connectors of winding and first
Lead-out wire is connected, and multiple second connectors of winding are connected with the second lead-out wire, and the first lead-out wire is connected with the first binding post
It connects, the second lead-out wire is connected with the second binding post.
In the technical scheme, winding includes the coil of multiple parallel connections, and each coil includes the first connector and the second connector,
First connector of each coil in same winding is connected to the first lead-out wire, and the second connector is connected to the second lead-out wire, thus
It realizes and the coil in winding is connected to binding post.It especially may be implemented the winding that coil number in parallel is odd number being connected to
First binding post and the second binding post, and then the winding switching for the motor that every phase winding coil is odd number may be implemented.
Alternatively, winding can also include a concatenated coil, then concatenated coil is connected with binding post.
Wherein, coil number in parallel in each winding can be odd number, or even number.
The refrigeration equipment that the embodiment of the utility model second aspect provides, including：The compressor of first aspect embodiment.
Refrigeration equipment provided by the utility model, compressor and magneto can realize the effect of full frequency band function admirable
Fruit, and the reliability and power density of equipment are improved, in order to the Miniaturization Design of equipment, and then improve refrigeration equipment
Reliability and working performance, convenient for reducing the volume of refrigeration equipment.
The additional aspect and advantage of the utility model will become apparent in following description section, or new by this practicality
The practice of type is recognized.
Description of the drawings
Fig. 1 is a kind of cross-sectional view of the magneto of embodiment of the utility model；
Fig. 2 is the cross-sectional view of the magneto of the utility model another kind embodiment；
Fig. 3 is a kind of line schematic diagram of the magneto of embodiment of the utility model；
Fig. 4 is a kind of efficiency change figure of the magneto of embodiment of the utility model
Fig. 5 is an a kind of winding connecting structure figure of magneto of embodiment of the utility model；
Fig. 6 is a kind of another winding connecting structure figure of magneto of embodiment of the utility model；
Fig. 7 is a winding connecting structure figure of the magneto of the utility model another kind embodiment；
Fig. 8 is another winding connecting structure figure of the magneto of the utility model another kind embodiment；
Fig. 9 is a kind of line schematic diagram of the compressor of embodiment of the utility model.
Wherein, the correspondence in Fig. 1 to Fig. 9 between reference numeral and component names is：
12 first connecting terminals, 122 first binding posts, 14 second connecting terminals, 142 second binding posts, 2 stators, 22 around
Group, 222 first connectors, 224 second connectors, 24 first lead-out wires, 26 second lead-out wires, 3 rotors, 32 permanent magnets, 402 bent axles,
404 base bearings, 406 cylinders, 408 pistons, 410 supplementary bearings, 412 exhaust pipes.
Specific implementation mode
In order to be more clearly understood that the above objects, features, and advantages of the utility model, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
Novel to be implemented different from other modes described here using other, therefore, the scope of protection of the utility model is simultaneously
It is not limited by following public specific embodiment.
Referring to Fig. 1 to Fig. 9 descriptions according to the compressor and refrigeration equipment described in the utility model some embodiments.
As shown in Figure 1 to Figure 3, the utility model provides a kind of compressor, including：Shell；Magneto is arranged in shell
In vivo, magneto includes polyphase windings 22；Frequency converter, frequency converter are connected with magneto；Star triangle change-over switch, setting
On the circuit of connection frequency converter and magneto, when the rotating speed of magneto is less than or equal to critical speed, the conversion of star triangle
Switch motion is so that the winding of magneto is in star-like connection, and when the rotating speed of magneto is more than critical speed, star triangle turns
Switch motion is changed so that the connection triangular in shape of the winding of magneto；Wherein, when the rotating speed of magneto be more than critical speed and
When less than maximum running speed, the sectional area of the maximum virtual value and the parallel conductor per phase winding of the line current of frequency converter output
Summation ratio be less than or equal to 22.5A/mm2。
Compressor provided by the utility model enables magneto in compressor by the way that star triangle change-over switch is arranged
It is enough to be run in a manner of star-like connection when rotating speed is less than or equal to critical speed, and when rotating speed is more than critical speed with triangle
Connection type is run so that compressor and magneto can realize the effect of full frequency band function admirable, and improve equipment
Reliability and power density, in order to the Miniaturization Design of equipment.In addition, can realize the frequency converter output of bigger in this configuration
Line current maximum virtual value and winding parallel conductor sectional area summation ratio, you can with promoted frequency converter output
Line current maximum virtual value or use the smaller winding of conductor cross sectional area.
Wherein, as shown in figure 3, star triangle change-over switch includes multiple sub switchs, setting is in frequency converter and magneto (packet
Include three-phase windings) on the circuit that is connected, by the control for star triangle change-over switch, may be implemented A phases in switch motor,
The star-like connection of the winding of B phase C phases or triangle connection, realize that magneto uses triangle connection type in high speed,
Star-like connection mode is used when low speed, ensures that magneto can realize the effect of full frequency band function admirable.
In addition, as shown in figure 4, wherein the dotted line in left side indicates the efficiency change of compressor electric motor in the related technology, right side
Realization indicate the present embodiment in magneto efficiency change.Magneto in the present embodiment, frequency converter output
The maximum virtual value of line current and the ratio of the summation of the sectional area of the parallel conductor per phase winding are less than or equal to 22.5A/mm2,
And the efficiency of the summation and motor of the sectional area of the maximum virtual value of the line current of frequency converter output and the parallel conductor of winding
It is proportionate；And the parallel conductor of the maximum virtual value and every phase winding of the line current of motor inverter output in the related technology
The summation of sectional area can only achieve 13A/mm2, therefore its load current receives bigger limitation, cannot achieve in big electricity
Good working state under stream, high load operating mode.Magneto in the embodiments of the present invention can adapt to the electricity of bigger
Stream and load, contribute to magneto that can realize good working order under the operating mode of different rotating speeds and different loads.
In one embodiment of the utility model, it is preferable that as depicted in figs. 1 and 2, the root of the parallel conductor of winding 22
Number is multiple.
In this embodiment, winding 22 includes more parallel conductors, the setting in order to winding 22 and promotion compressor
Power.Alternatively, the radical of the parallel conductor of winding be one, if winding be believed that when only including a conductor this winding and
The radical for joining conductor is one.
In one embodiment of the utility model, it is preferable that as depicted in figs. 1 and 2, the sectional area of multiple parallel conductors
It is equal.
In this embodiment, the parallel conductor that can preferentially select sectional area equal ensures each parallel connection after compressor power supply
The Load Balanced of conductor is conducive to extend the service life of compressor and magneto.
In one embodiment of the utility model, it is preferable that as depicted in figs. 1 and 2, the cross of the parallel conductor of winding 22
Section is round or polygon.
In this embodiment, the cross section of parallel conductor is round or polygon in winding 22, and cross section is circular leads
For body convenient for winding and manufacture, suitability is strong；Cross section is to be not easy to loosen after the conductor of polygon (such as rectangle) is wound, reliability
By force.Wherein, the cross section of the parallel conductor of winding 22 is round in structure shown in FIG. 1, winding 22 in structure shown in Fig. 2
The cross section of parallel conductor is polygon (rectangle).
In one embodiment of the utility model, it is preferable that magneto includes three-phase windings.
In this embodiment, magneto includes three-phase windings, i.e., magneto is three phase electric machine, three phase electric machine versatility
Good, stable conditions are suitable for most of use occasion.
In one embodiment of the utility model, it is preferable that as shown in figure 4, when the rotating speed of magneto is more than critical
Rotating speed and when less than maximum running speed, maximum virtual value and the parallel conductor per phase winding 22 of the line current of frequency converter output
Sectional area summation ratio be more than or equal to 8A/mm2。
In this embodiment, when magneto is in the operation of high rotating speed, the maximum of the line current of frequency converter output is effectively
The ratio of value and the summation of the sectional area of the parallel conductor per phase winding is more than or equal to 8A/mm2, so that the power of magneto is close
Degree and the higher level of property retention.
In one embodiment of the utility model, it is preferable that further include：Detection device, detection device and magneto
It is connected, the rotating speed for detecting magneto；Controller, controller are respectively connected with detection device, frequency converter, controller
Line current for controlling frequency converter output according to the rotating speed of magneto.
In this embodiment, further include detection device and controller, in order to switch star according to the rotating speed of magneto
With triangle connection type and the line current of control frequency converter output so that magneto can keep good in full frequency band
Runnability.
In one embodiment of the utility model, it is preferable that as depicted in figs. 1 and 2, magneto further includes：Stator
2, including stator core, winding 22 be wrapped on stator core；Rotor 3 is arranged in the installation cavity of stator 2.
In this embodiment, winding 22 is wrapped on stator core, and rotor 3 is arranged in the installation cavity of stator 2, compressor
Rotor 3 drives the compression unit movement of compressor after energization, and then realizes the compression for coolant media.
Wherein, tooth socket is formed on stator core, winding 22 is arranged in tooth socket, and rotor 3 has rotor core and permanent magnetism
Body 32, permanent magnet 32 are located in the permanent magnet trough of rotor core, and in the construction shown in fig. 1, magneto is 9 slot, 6 pole structure,
Winding is centralized winding, and each coil is arranged on a tooth, has 3 coils, the first connector of 3 coils per phase winding
222 and second connector 224 can be connected respectively with the first lead-out wire 24 and the second lead-out wire 26, be connected to the first binding post
122 and second on binding post 142.In addition, it is assumed that when 3 coil series connection, Fig. 5 and 22 connection structure of winding shown in fig. 6 are formed,
The radical in parallel that can be understood as every phase winding 22 at this time is 1, it is generally preferable to the cross-sectional area S1=S2=of each parallel conductor
S3=S1 ', magneto is by inverter supply, to the compression between compressor maximum running speed more than n0 (critical speed)
Machine provides under operating mode that the maximum virtual value of the line current of frequency converter output is Imrms, and Imrms/S1 '≤22.5A/mm is arranged2。
For another example, it is assumed that when 3 coils from parallel connection of coils, form Fig. 7 and winding connecting structure shown in Fig. 8, i.e. the radical in parallel per phase winding is
3, magneto under the compressor regulation operating mode between n0 or more to compressor maximum running speed, is become by inverter supply
The maximum virtual value of the line current of frequency device output is Imrms, setting Imrms/ (S1+S2+S3)≤22.5A/mm2, further,
If S1=S2=S3=S1 ", meet Imrms/ (nS1 ")≤22.5A/mm2, wherein as shown in figure 9, multiple per phase winding
First connector 222 and multiple second connectors 224 can be respectively connected to multiple first lead-out wires 24 and multiple second inlet-outlet lines, then will
First lead-out wire 24 is connected with the first binding post 122, and the second lead-out wire 26 is connected with the second binding post 142.
In addition, it will also realize in Fig. 4 that, Imrms/ (S1+ ...+Sn) reliability limits in the compressor of the utility model embodiment
It is worth higher, more conducively increases electric current or reduces conductor area, and then realizes the power bracket of bigger.
In one embodiment of the utility model, it is preferable that as shown in Figure 1, Figure 2 and shown in Fig. 9, further include：First wiring
Terminal 12 is arranged on shell, and the first connecting terminal 12 includes multiple first binding posts 122；Second connecting terminal 14, setting exist
On shell, the second connecting terminal 14 includes multiple second binding posts 142；Winding 22 includes the coil of multiple parallel connections, and coil includes
Multiple first connectors 222 of first connector 222 and the second connector 224, winding 22 are connected with the first lead-out wire 24, winding 22
Multiple second connectors 224 are connected with the second lead-out wire 26, and the first lead-out wire 24 is connected with the first binding post 122, and second draws
Outlet 26 is connected with the second binding post 142.
In this embodiment, winding 22 includes the coil of multiple parallel connections, and each coil connects including the first connector 222 and second
First 224, the first connector 222 of each coil in same winding is connected to the first lead-out wire 24, and the second connector 224 is connected to
Two lead-out wires 26, it is thus achieved that the coil in winding is connected to binding post.Especially may be implemented be by coil number in parallel
The winding of odd number is connected to the first binding post 122 and the second binding post 142, so may be implemented be for every phase winding coil
The winding of the motor of odd number switches.Alternatively, winding can also include a concatenated coil, then by concatenated coil and binding post
It is connected.
Wherein, coil number in parallel in each winding can be odd number, or even number.
In one embodiment of the utility model, it is preferable that as shown in figure 9, compressor further includes compression unit, compression unit
Including bent axle 402, base bearing 404, cylinder 406, piston 408 and supplementary bearing 410, wherein bent axle 402 is connected with rotor 3, into
And the compression after motor operation with the movement completion of piston 408 for refrigerant.In addition compressor further includes exhaust pipe 412, can
For gas to be discharged.
Compressor provided by the utility model has the characteristics that reliability is high, power density is high, full frequency band function admirable,
And conducive to miniaturization, while also be conducive to reduce conductor area, so as to be effectively improved magneto winding manufacturing, be convenient for
Winding is manufactured.
The utility model additionally provides a kind of refrigeration equipment, including：The compressor of first aspect embodiment.
Refrigeration equipment provided by the utility model, compressor and magneto can realize the effect of full frequency band function admirable
Fruit, and the reliability and power density of equipment are improved, in order to the Miniaturization Design of equipment, and then improve refrigeration equipment
Reliability and working performance, convenient for reducing the volume of refrigeration equipment.
Wherein, refrigeration equipment can be the refrigeration equipments such as air conditioner or refrigerator.
In the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly.Term
The terms such as " installation ", " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection,
Can be detachably connected, or be integrally connected；" connected " can be directly connected, and can also pass through the indirect phase of intermediary
Even.For the ordinary skill in the art, it can understand above-mentioned term in the present invention as the case may be
Concrete meaning.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiments or example
In can be combined in any suitable manner.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of compressor, which is characterized in that including：
Shell；
Magneto is arranged in the shell, and the magneto includes polyphase windings；
Frequency converter, the frequency converter are connected with the magneto；
Star triangle change-over switch is arranged on connecting circuit of the frequency converter with the magneto, when the magneto
Rotating speed when being less than or equal to critical speed, the star triangle change-over switch acts so that the winding of the magneto is in star company
It connects, when the rotating speed of the magneto is more than the critical speed, the star triangle change-over switch action is so that the permanent magnetism
The winding connection triangular in shape of motor；
Wherein, when the rotating speed of the magneto is more than the critical speed and less than maximum running speed, the frequency converter
The maximum virtual value of the line current of output and the ratio of the summation of the sectional area of the parallel conductor of winding described in every phase are less than or equal to
22.5A/mm2。
2. compressor according to claim 1, which is characterized in that
The radical of the parallel conductor of the winding is one or more.
3. compressor according to claim 2, which is characterized in that
The sectional area of multiple parallel conductors is equal.
4. compressor according to claim 1, which is characterized in that
The cross section of the parallel conductor of the winding is round or polygon.
5. compressor according to claim 1, which is characterized in that
The magneto includes three-phase windings.
6. compressor according to any one of claim 1 to 5, which is characterized in that
When the rotating speed of the magneto is more than the critical speed and is less than maximum running speed, the frequency converter output
The maximum virtual value of line current and the ratio of the summation of the sectional area of the parallel conductor of winding described in every phase are more than or equal to 8A/mm2。
7. compressor according to any one of claim 1 to 5, which is characterized in that further include：
Detection device, the detection device are connected with the magneto, the rotating speed for detecting the magneto；
Controller, the controller are respectively connected with the detection device, the frequency converter, and the controller is used for according to institute
The rotating speed for stating magneto controls the line current of the frequency converter output.
8. compressor according to any one of claim 1 to 5, which is characterized in that the magneto further includes：
Stator, including stator core, the winding are wrapped on the stator core；
Rotor is arranged in the installation cavity of the stator.
9. compressor according to claim 8, which is characterized in that further include：
First connecting terminal, on the housing, first connecting terminal includes multiple first binding posts for setting；
Second connecting terminal, on the housing, second connecting terminal includes multiple second binding posts for setting；
The winding includes the coil of multiple parallel connections, and the coil includes the first connector and the second connector, the winding it is multiple
First connector is connected with the first lead-out wire, and multiple second connectors of the winding are connected with the second lead-out wire, and described first
Lead-out wire is connected with first binding post, and second lead-out wire is connected with second binding post.
10. a kind of refrigeration equipment, which is characterized in that including：
Compressor as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820007921.4U CN207761898U (en) | 2018-01-03 | 2018-01-03 | Compressor and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820007921.4U CN207761898U (en) | 2018-01-03 | 2018-01-03 | Compressor and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207761898U true CN207761898U (en) | 2018-08-24 |
Family
ID=63183093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820007921.4U Withdrawn - After Issue CN207761898U (en) | 2018-01-03 | 2018-01-03 | Compressor and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207761898U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087234A (en) * | 2018-01-03 | 2018-05-29 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
| CN112311119A (en) * | 2019-07-29 | 2021-02-02 | 维谛技术有限公司 | Motor, electric traction system and control method, device and equipment thereof |
-
2018
- 2018-01-03 CN CN201820007921.4U patent/CN207761898U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087234A (en) * | 2018-01-03 | 2018-05-29 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
| CN108087234B (en) * | 2018-01-03 | 2023-09-22 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
| CN112311119A (en) * | 2019-07-29 | 2021-02-02 | 维谛技术有限公司 | Motor, electric traction system and control method, device and equipment thereof |
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