CN107196562A - Starter, threephase asynchronous machine and compressor - Google Patents
Starter, threephase asynchronous machine and compressor Download PDFInfo
- Publication number
- CN107196562A CN107196562A CN201710533347.6A CN201710533347A CN107196562A CN 107196562 A CN107196562 A CN 107196562A CN 201710533347 A CN201710533347 A CN 201710533347A CN 107196562 A CN107196562 A CN 107196562A
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- China
- Prior art keywords
- terminals
- switch
- temperature distortion
- starter
- distortion piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor And Converter Starters (AREA)
Abstract
The invention provides a kind of starter, threephase asynchronous machine and compressor.Starter includes：Installation cavity is provided with location division, location division；Temperature distortion piece, temperature distortion piece is arranged in installation cavity；First switch and second switch, first switch and second switch are installed on location division, when temperature distortion piece is in cold conditions, and first switch is closed and second switch is opened, temperature distortion piece is heated when deforming, and temperature distortion piece deforms so that second switch is closed and first switch is opened.By the effect of the starter in the present invention, compressor is enabled to realize single-phase starting, three-phase operation, solve the problem of pipeline ess-strain during compressor start is excessive, shake during compressor start is reduced, cost is low, be easy to improve the market competitiveness of compressor.
Description
Technical field
The present invention relates to compression set technical field, in particular to a kind of starter, threephase asynchronous machine and compression
Machine.
Background technology
Threephase asynchronous machine is used in existing three-phase invariable frequency compressor, typically by the way of across-the-line starting, which rises
Move due to threephase asynchronous machine self structure, strong starting torque impact can be produced starting moment, make compressor
Shake is produced when starting violent, and cause pipeline vibration exceeded.
Some starting switching circuits existing at present are voltage-type start mode, and starting switching time is too fast, does not have slow
The effect of punching, while having voltage detector component to add cost inside voltage-type circuit weakens product competitiveness.
The content of the invention
It is a primary object of the present invention to provide a kind of starter, threephase asynchronous machine and compressor, to solve existing skill
The problem of shaking violent during compressor start in art.
To achieve these goals, according to an aspect of the invention, there is provided a kind of starter, including：Location division, it is fixed
Position is provided with installation cavity in portion；Temperature distortion piece, temperature distortion piece is arranged in installation cavity；First switch and second switch, the
One switch and second switch are installed on location division, when temperature distortion piece is in cold conditions, and first switch is closed and second switch
Open, temperature distortion piece is heated when deforming, and temperature distortion piece deforms so that second switch is closed and first switch is beaten
Open.
Further, temperature distortion piece is sheet metal.
Further, temperature distortion piece includes the second metal of the first metal layer and compacting formation on the first metal layer
Layer, the coefficient of expansion of the first metal layer is less than the coefficient of expansion of second metal layer.
Further, first switch includes the first terminals and the second terminals, and the first terminals and the second terminals are equal
It is located on location division, the first end of the first terminals and the second terminals is respectively positioned in installation cavity, the first terminals and second
Second end of terminals stretches out in the outside of location division, and the first terminals and the second terminals first end are respectively positioned on temperature distortion
First side of piece.
Further, second switch includes the 3rd terminals and the 4th terminals, and the 3rd terminals and the 4th terminals are equal
It is located on location division, the first end of the 3rd terminals and the 4th terminals is respectively positioned in installation cavity, the 3rd terminals and the 4th
Second end of terminals stretches out in the outside of location division, and the first end of the 3rd terminals and the 4th terminals is respectively positioned on temperature-sensitive change
Second side relative with the first side of shape piece.
Further, the first side and the second side of temperature distortion piece are provided with two conductive contacts, two conductive contacts
Between connected by wire, be provided with the first terminals, the second terminals, the 3rd terminals and the 4th terminals with it is conductive
The corresponding contact site of contact.
Further, insulation board is provided with temperature distortion piece, conductive contact is arranged on insulation board.
Further, starter also includes heating wire connecting portion, and heating wire connecting portion is connected with temperature distortion piece.
Further, heating wire connecting portion includes the first conducting end and the second conducting end, the first conducting end and the second conducting end
It is fixedly connected with temperature distortion piece, the second end of the first conducting end and the second conducting end stretches out in the outside of location division.
Further, location division is insulation division.
According to another aspect of the present invention there is provided a kind of threephase asynchronous machine, including starter, starter is above-mentioned
Starter.
Further, the first switch of starter by wire be connected to threephase asynchronous machine any two-phase power supply it
Between, the second switch of starter is connected to the first terminals of first switch by wire and the first of threephase asynchronous machine is powered
Between power supply, the heating wire connecting portion of starter is connected to the second terminals and threephase asynchronous machine of first switch by wire
Between second energizing source.
In accordance with a further aspect of the present invention there is provided a kind of compressor, including threephase asynchronous machine, threephase asynchronous machine is
Above-mentioned threephase asynchronous machine.
Apply the technical scheme of the present invention, starter is connected to any two-phase electricity of compressor start threephase asynchronous machine
Between source.When the moment for the general supply for starting compressor, temperature distortion piece is in cold conditions, and first switch is closed, and second switch is beaten
Open, now, threephase asynchronous machine realizes single-phase starting, after temperature distortion piece is heated to deform, first switch disconnects, second
Switch is closed, and now, threephase asynchronous machine is switched to three-phase working condition.It can be seen that, by the effect of the starter in the present invention,
Compressor is enabled to realize single-phase starting, three-phase operation, pipeline ess-strain is excessive during solving compressor start
Problem, reduces shake during compressor start, and cost is low, is easy to improve the market competitiveness of compressor.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
The starter that Fig. 1 diagrammatically illustrates the present invention removes stereogram after location division；And
The circuit diagram when starter that Fig. 2 diagrammatically illustrates the present invention is connected with threephase asynchronous machine.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, temperature distortion piece；20th, first switch；21st, the first terminals；22nd, the second terminals；30th, second switch；31、
3rd terminals；32nd, the 4th terminals；50th, wire connecting portion is heated；51st, the first conducting end；52nd, the second conducting end；60th, it is conductive to touch
Head；70th, contact site；40th, insulation board.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein
Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing process, method, system, product or the equipment of series of steps or unit not
Be necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.If for example, the device in accompanying drawing is squeezed, be described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
Shown in Figure 1, embodiments in accordance with the present invention are there is provided a kind of starter, the starter bag in the present embodiment
Include location division (not shown), temperature distortion piece 10, first switch 20 and second switch 30.
Wherein, it is provided with installation cavity on location division；Temperature distortion piece 10 is arranged in installation cavity；First switch 20 and second
Switch 30 is installed on location division.When temperature distortion piece 10 is in cold conditions, first switch 20 is closed and second switch 30 is opened,
Temperature distortion piece 10 is heated when deforming, and temperature distortion piece 10 deforms so that second switch 30 is closed and first switch 20
Open.
During using above-mentioned starter, starter is connected to any the two of compressor start threephase asynchronous machine
Between phase power supply, as shown in Figure 2.When the moment for the general supply for starting compressor, temperature distortion piece 10 is in cold conditions, first switch
20 are closed, and second switch 30 is opened, and now, threephase asynchronous machine realizes single-phase starting, becomes when temperature distortion piece 10 is heated
After shape, first switch 20 is disconnected, and second switch 30 is closed, now, and threephase asynchronous machine is switched to three-phase working condition.It can be seen that,
By the effect of the starter in the present embodiment, compressor is enabled to realize single-phase starting, three-phase operation solves compressor
The problem of pipeline ess-strain is excessive in start-up course, reduces shake during compressor start, and cost is low, is easy to improve and compresses
The market competitiveness of machine.
Temperature distortion piece 10 in the present embodiment is sheet metal, certainly, in other embodiments of the invention, can also be by
Temperature distortion piece 10 is set to other deformable structures, as long as other modes of texturing under the design of the present invention, exist
Within protection scope of the present invention.
Temperature distortion piece 10 in the present embodiment suppresses the second gold medal to be formed on the first metal layer including the first metal layer
Belong to layer, the coefficient of expansion of the first metal layer is less than the coefficient of expansion of second metal layer, the temperature-sensitive in production the present embodiment is implemented
It is first that the first metal layer and second metal layer is compressed together during deforming piece 10, it is in nature, i.e., described above
Cold conditions under, temperature distortion piece 10 is in the state that is bent upwards, and now, first switch 20 is closed, and second switch 30 is opened, just
In the unilateral initiative for realizing threephase asynchronous machine.When the temperature of temperature distortion piece 10 rises, due to the expansion system of the first metal layer
Number is less than the coefficient of expansion of second metal layer, and now, the expansion positioned at the second metal layer on upper strata is more than first positioned at lower floor
The expansion of metal level, the temperature distortion piece 10 produces downward stress, when the swelling stress of temperature distortion piece 10 is more than temperature distortion
When piece 10 keeps the stress of shape, the shape of temperature distortion piece 10, which will be sported, to be bent downwardly, and then first switch 20 is disconnected,
Second switch 30 is closed, the unilateral initiative of threephase asynchronous machine, three-phase operation is realized.
Specifically, the first switch 20 in the present embodiment includes the first terminals 21 and the second terminals 22, and first connects
The terminals 22 of line end 21 and second are located on location division, and the first end of the first terminals 21 and the second terminals 22 is respectively positioned on
In installation cavity, the second end of the first terminals 21 and the second terminals 22 stretches out in the outside of location division, is easy to and external electrical
Road connection, the first terminals 21 and the first end of the second terminals 22 are respectively positioned on the first side of temperature distortion piece 10.
Second switch 30 includes the 3rd terminals 31 and the 4th terminals 32, and the 3rd terminals 31 and the 4th terminals 32 are equal
It is located on location division, the first end of the 3rd terminals 31 and the 4th terminals 32 is respectively positioned in installation cavity, the 3rd terminals 31
The outside of location division is stretched out in the second end of the 4th terminals 32, is easy to be connected with external circuit, the He of the 3rd terminals 31
The first end of 4th terminals 32 is respectively positioned on second side relative with the first side of temperature distortion piece 10.
First switch 20 and second switch 30 in the present embodiment are separately positioned on the relative both sides of temperature distortion piece 10,
During cold conditions, temperature distortion piece 10 is bent upwards so that first switch 20 is closed, and second switch 30 is opened, when temperature distortion piece 10
Temperature rise when, the deformation of temperature distortion piece 10 is bent downwardly, and second switch 30 is closed, and first switch 20 is opened.
The first side and the second side of temperature distortion piece 10 in the present embodiment are provided with two conductive contacts 60, and two are led
Connected between electrical contact 60 by wire, the first terminals 21, the second terminals 22, the 3rd terminals 31 and the 4th terminals 32
On be provided with contact site 70 corresponding with conductive contact 60, the contact site 70 can be the structures such as through hole, blind hole.
In order to ensure to be provided with insulation on the temperature distortion piece 10 in the starter stability in the present embodiment, the present embodiment
Plate 40, conductive contact 60 is arranged on insulation board 40.
Starter also includes heating wire connecting portion 50, and the heating wire connecting portion 50 is connected with temperature distortion piece 10, heated when by this
When wire connecting portion 50 is connected in circuit, it is easy to heat temperature distortion piece 10, temperature distortion piece 10 is deformed
One switch 20 and second switch 30 are opened or closed.
Specifically, heating wire connecting portion 50 includes the first conducting end 51 and the second conducting end 52, the first conducting end 51 and the
Two conducting ends 52 are fixedly connected with temperature distortion piece 10, and the second end of the first conducting end 51 and the second conducting end 52 is stretched out in
Outside location division.Due to there is resistance in temperature distortion piece 10, ohm effect of electric current makes temperature distortion piece 10 generate heat, now by
The coefficient of expansion of second metal layer is formed in temperature distortion piece 10 and pushed higher than the first metal layer in temperature distortion piece 10
Power, after the lower pressure is more than internal stress, is mutated the temperature distortion piece 10 being bent upwards originally and is bent downwardly, first switch
20 are disconnected, and second switch 30 is closed, and compressor is switched to threephase asynchronous machine mode and run.
Preferably, the location division in the present embodiment is insulation division, simple in construction, safe and reliable, in the process of actual design
In, insulation division can be set to the shapes such as cuboid or square or cylinder.
According to another aspect of the present invention there is provided a kind of threephase asynchronous machine, the threephase asynchronous machine in the present embodiment
Including starter, the starter is above-mentioned starter.
During connection, the first switch 20 of starter by wire be connected to threephase asynchronous machine any two-phase power supply it
Between, the second switch 30 of starter by wire be connected to first switch 20 the first terminals 21 and threephase asynchronous machine
Between one energizing source, the heating wire connecting portion 50 of starter is connected to the second terminals 22 and three of first switch 20 by wire
Between second energizing source of phase Induction Machines, as shown in Fig. 2 when the moment for the general supply for starting compressor, temperature distortion piece
10 are in cold conditions, and first switch 20 is closed, and second switch 30 is opened, now, and threephase asynchronous machine realizes single-phase starting, works as temperature-sensitive
Deformation piece 10 is heated deform after, first switch 20 is disconnected, and second switch 30 is closed, now, and threephase asynchronous machine is switched to
Three-phase working condition.It can be seen that, by the effect of the starter in the present embodiment, enable to compressor to realize single-phase starting, three
Mutually run, solve the problem of pipeline ess-strain during compressor start is excessive, reduce shake during compressor start,
Cost is low, is easy to improve the market competitiveness of compressor.
In accordance with a further aspect of the present invention there is provided a kind of compressor, the compressor includes threephase asynchronous machine, the three-phase
Asynchronous machine is the threephase asynchronous machine in above-described embodiment.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：The present invention's
Starter, threephase asynchronous machine and contracting machine realize the single-phase starting three-phase operation of three-phase compressor, solve three-phase compressor and rise
The problem of pipeline ess-strain is excessive during dynamic.The present invention uses the power on the shape of temperature distortion piece after the current heating of phase simultaneously
Shape changes, and realizes that electric capacity cut-out puts into two steps with third phase power supply, with minimum component, solves across-the-line starting torque
Problems of too is impacted, system cost is reduced.Starter, the threephase asynchronous machine of the present invention can be applied to be risen in three-phase compressor
Dynamic stress is strained to be applied on exceeded serious compressor, prevents air-conditioning duct fatigue fracture.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
1. a kind of starter, it is characterised in that including：
Installation cavity is provided with location division, the location division；
Temperature distortion piece (10), the temperature distortion piece (10) is arranged in the installation cavity；
First switch (20) and second switch (30), the first switch (20) and the second switch (30) are installed in described
On location division, when the temperature distortion piece (10) is in cold conditions, the first switch (20) is closed and the second switch (30)
Open, the temperature distortion piece (10) is heated when deforming, and the temperature distortion piece (10) deforms so that described second
(30) are switched to close and the first switch (20) opening.
2. starter according to claim 1, it is characterised in that the temperature distortion piece (10) is sheet metal.
3. starter according to claim 1, it is characterised in that the temperature distortion piece (10) include the first metal layer and
Compacting forms the second metal layer on the first metal layer, and the coefficient of expansion of the first metal layer is less than second gold medal
Belong to the coefficient of expansion of layer.
4. starter according to claim 1, it is characterised in that the first switch (20) includes the first terminals (21)
With the second terminals (22), first terminals (21) and the second terminals (22) are located on the location division, described
The first end of first terminals (21) and second terminals (22) is respectively positioned in the installation cavity, first terminals
(21) and the second end of second terminals (22) stretches out in the outside of the location division, first terminals (21) and
Second terminals (22) first end is respectively positioned on the first side of the temperature distortion piece (10).
5. starter according to claim 4, it is characterised in that the second switch (30) includes the 3rd terminals (31)
With the 4th terminals (32), the 3rd terminals (31) and the 4th terminals (32) are located on the location division,
The first end of 3rd terminals (31) and the 4th terminals (32) is respectively positioned in the installation cavity, the 3rd wiring
End (31) and the second end of the 4th terminals (32) stretch out in the outside of the location division, the 3rd terminals (31)
Second side relative with the first side of the temperature distortion piece (10) is respectively positioned on the first end of the 4th terminals (32).
6. starter according to claim 5, it is characterised in that the first side and the second side of the temperature distortion piece (10)
It is provided between two conductive contacts (60), two conductive contacts (60) and is connected by wire, first terminals
(21), it is provided with and the conductive contact on the second terminals (22), the 3rd terminals (31) and the 4th terminals (32)
(60) corresponding contact site (70).
7. starter according to claim 6, it is characterised in that be provided with insulation board on the temperature distortion piece (10)
(40), the conductive contact (60) is arranged on the insulation board (40).
8. starter according to claim 1, it is characterised in that the starter also includes heating wire connecting portion (50), institute
Heating wire connecting portion (50) is stated to be connected with the temperature distortion piece (10).
9. starter according to claim 8, it is characterised in that the heating wire connecting portion (50) includes the first conducting end
(51) and the second conducting end (52), first conducting end (51) and second conducting end (52) with the temperature distortion piece
(10) it is fixedly connected, the second end of first conducting end (51) and second conducting end (52) stretches out in the location division
Outside.
10. starter according to claim 1, it is characterised in that the location division is insulation division.
11. a kind of threephase asynchronous machine, including starter, the starter are rising any one of claim 1 to 10
Dynamic device.
12. threephase asynchronous machine according to claim 11, it is characterised in that the first switch (20) of the starter is led to
Cross wire to be connected between any two-phase power supply of the threephase asynchronous machine, the second switch (30) of the starter is by leading
Line is connected between the first terminals (21) of the first switch (20) and the first energizing source of the threephase asynchronous machine,
The heating wire connecting portion (50) of the starter is connected to the second terminals (22) and the institute of the first switch (20) by wire
Between the second energizing source for stating threephase asynchronous machine.
13. a kind of compressor, including threephase asynchronous machine, it is characterised in that the threephase asynchronous machine be claim 11 to
Threephase asynchronous machine any one of 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533347.6A CN107196562A (en) | 2017-07-03 | 2017-07-03 | Starter, threephase asynchronous machine and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710533347.6A CN107196562A (en) | 2017-07-03 | 2017-07-03 | Starter, threephase asynchronous machine and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107196562A true CN107196562A (en) | 2017-09-22 |
Family
ID=59880768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710533347.6A Pending CN107196562A (en) | 2017-07-03 | 2017-07-03 | Starter, threephase asynchronous machine and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107196562A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481494A (en) * | 1983-01-31 | 1984-11-06 | Therm-O-Disc, Incorporated | Bi-metal snap disc operated relay |
| JPH1131445A (en) * | 1997-07-10 | 1999-02-02 | Texas Instr Japan Ltd | Switch device |
| US20050231151A1 (en) * | 2003-07-09 | 2005-10-20 | Iida Keizo | Synchronous induction motor and electric hermetic compressor using the same |
| CN203721630U (en) * | 2014-01-03 | 2014-07-16 | 广东美的厨房电器制造有限公司 | Temperature controller and electric oven |
| CN204886750U (en) * | 2015-07-24 | 2015-12-16 | 珠海凌达压缩机有限公司 | Three phase machine starting circuit and compressor |
| CN206908534U (en) * | 2017-07-03 | 2018-01-19 | 珠海凌达压缩机有限公司 | Starter, threephase asynchronous machine and compressor |
-
2017
- 2017-07-03 CN CN201710533347.6A patent/CN107196562A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4481494A (en) * | 1983-01-31 | 1984-11-06 | Therm-O-Disc, Incorporated | Bi-metal snap disc operated relay |
| JPH1131445A (en) * | 1997-07-10 | 1999-02-02 | Texas Instr Japan Ltd | Switch device |
| US20050231151A1 (en) * | 2003-07-09 | 2005-10-20 | Iida Keizo | Synchronous induction motor and electric hermetic compressor using the same |
| CN203721630U (en) * | 2014-01-03 | 2014-07-16 | 广东美的厨房电器制造有限公司 | Temperature controller and electric oven |
| CN204886750U (en) * | 2015-07-24 | 2015-12-16 | 珠海凌达压缩机有限公司 | Three phase machine starting circuit and compressor |
| CN206908534U (en) * | 2017-07-03 | 2018-01-19 | 珠海凌达压缩机有限公司 | Starter, threephase asynchronous machine and compressor |
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