CN107068452B - Miniature double power supply automatic transfer switch - Google Patents
Miniature double power supply automatic transfer switch Download PDFInfo
- Publication number
- CN107068452B CN107068452B CN201710418096.7A CN201710418096A CN107068452B CN 107068452 B CN107068452 B CN 107068452B CN 201710418096 A CN201710418096 A CN 201710418096A CN 107068452 B CN107068452 B CN 107068452B
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- Prior art keywords
- breaker
- separating brake
- automatic transfer
- common
- shell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
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Abstract
The present invention relates to a kind of miniature double power supply automatic transfer switch, including automatic transfer equipment, common breaker, back-up breaker, automatic transfer equipment includes shell, intelligent control wiring board, mechanism rack, motor, bevel gear, two groups of transmission components, transmission component includes the transmission gear with bevel gear linkage setting, with the cam of transmission gear linkage setting, it is rotatably arranged in mechanism rack at corresponding cam and for driving common circuit breaker handle/back-up breaker handle transition arm, cam rotates with transmission gear and transition arm can be driven to rotate, it is corresponded in mechanism rack and is movably set with separating brake part between transmission gear and cam, transmission gear freely cooperates on combined floodgate direction with separating brake part, it is linked on separating brake direction, the interlocking mechanism being linked with transition arm is provided in shell, intelligent control wiring board controls motor and rotates forward , reversion, stopping movement.The present invention has the advantages that compact-sized, high reliability, install convenient, safe and reliable, small in size.
Description
Technical field
The present invention relates to low voltage electrical apparatus technology fields, and in particular to a kind of miniature double power supply automatic transfer switch.
Background technique
Double power supply automatic transfer switch is a kind of common low-voltage electrical apparatus, the conversion being usually used between two road power supplys, to protect
When power failure or stopping are powered all the way, another way power supply can switch over rapidly card, to ensure that load circuit is normal
Power supply.There are very high requirement in many industries and department to the reliability of power supply, many in order to guarantee the continuity of power supply
Important occasion all uses double power supply automatic transfer switch to power, as the indispensable device of electric energy switching, double power-supply automatic transferring
The application demand of switch is more and more extensive, and technical property requirements are also higher and higher.Existing double power supply automatic transfer switch from
Turn changing device there are unreasonable structural design, structure is complicated, cause the volume of entire double power supply automatic transfer switch larger, and
And killer switch on-off is be easy to cause to stir the operation is stable not in place, and then having seriously affected double power supply automatic transfer switch
Property, will appear the shape of common backup power source parallel running at the case where causing electric interlock and mechanical interlocking to fail when serious
State has security risk so as to cause load equipment scaling loss.
Summary of the invention
It is an object of the invention to overcome the deficiencies of existing technologies, providing compact-sized one kind, high reliability, safety can
It leans on, the miniature double power supply automatic transfer switch of small size, install convenient.
To achieve the above object, the present invention use a kind of miniature double power supply automatic transfer switch, including automatic transfer equipment,
The common breaker being connect with common power supply, the back-up breaker being connect with backup power source, it is the common breaker, spare disconnected
Road device is separately positioned on the two sides of automatic converter device, and the automatic transfer equipment includes shell, is arranged in the intracorporal intelligence of shell
It can control wiring board, the intracorporal mechanism rack of shell be set, the intracorporal motor of shell, the umbrella being arranged on the output shaft of motor are set
Gear, the two groups of transmission components for being symmetrically distributed in bevel gear two sides and being arranged with bevel gear linkage, the transmission component include
Mechanism is rotatably arranged on at the transmission gear of bevel gear linkage setting, the cam being arranged with transmission gear linkage, corresponding cam
On frame and for driving common circuit breaker handle/back-up breaker handle transition arm, the cam is rotated with transmission gear
And transition arm can be driven to rotate, it is corresponded in the mechanism rack and is movably set with separating brake part between transmission gear and cam, and
Transmission gear freely cooperates on combined floodgate direction with separating brake part, is linked on separating brake direction, is provided in the shell
The interlocking mechanism being linked with the transition arm, the intelligent control wiring board control motor rotate forward, reversion, stop moving
Make.
The beneficial effect of above structure is: the structure of the automatic transfer equipment of the double power supply automatic transfer switch is more compact
Simplify, small volume, manufacturing cost is more cheap, can meet the automatic switchover of two-supply circuit in most cases.And it passes
Separating brake part is provided between moving gear and cam, in separating brake, transmission gear is linked with separating brake part, when closing a floodgate, transmission
Gear and separating brake part freely cooperate, and when switching two-way power supply, separating brake part can drive convex the double power supply automatic transfer switch in advance
Wheel executes separating brake movement, so that the double power supply automatic transfer switch can realize the mesh to close a floodgate after first separating brake when converting two-way power supply
's；Interlocking mechanism is provided in mechanism rack, which can effectively avoid common breaker, back-up breaker while closing
Lock.To which the double power supply automatic transfer switch has the advantages that compact-sized, high reliability, small in size, safe and reliable.
Particularly, the transmission gear is arranged on the cam towards drive lugs are provided on the side of cam
There is the convex block matched with drive lugs, the drive lugs rotate with transmission gear and convex block can be pushed to act and constitute and pass
Moving gear and cam are linked.By being provided with the drive lugs matched with cam, drive lugs on transmission gear
After driving cam to closing position, the revolution of motor driven transmission gear, drive lugs are turned back to original position, so that drive lugs will not
Cam revolution is limited, revolution movement can be performed in transition arm, to will not influence manual point of common breaker or back-up breaker
Lock.
Particularly, it is provided with shaft on the top of the separating brake part, shaft is rotatably arranged in mechanism rack, on separating brake part
It is connected in mechanism rack by a reset tension spring respectively on the two sides in portion, the lower end of separating brake part extends in drive lugs and convex block
Between, the drive lugs freely cooperate on combined floodgate direction with separating brake part, are linked on separating brake direction.By passing
It is provided with separating brake part between dynamic convex block and convex block, in separating brake, drive lugs are linked with separating brake part, when closing a floodgate, transmission
Convex block and separating brake part freely cooperate, and for the double power supply automatic transfer switch when switching two-way power supply, driving cam can pass through separating brake
Part can drive cam to execute separating brake movement in advance, so that the double power supply automatic transfer switch can realize elder generation when converting two-way power supply
The purpose closed a floodgate after separating brake improves reliability, the security performance of double power supply automatic transfer switch work.
Particularly, the interlocking mechanism includes that the intracorporal main shaft of shell, first be rotatably arranged on main shaft is arranged in
Jam plate, the first tension spring being connected between the first interlock plate and mechanism rack, corresponding back-up breaker trip shaft at link setting
The first jam plate on the first interlock plate, is connected to the second interlock plate and mechanism at the second interlock plate being rotatably arranged on main shaft
The second tension spring, the second jam plate that linkage is arranged on the second interlock plate at the trip shaft of corresponding common breaker between frame, institute
The transition arm of the first interlock plate stated and wherein one group of transmission component is linked, and first interlock plate is acted with transition arm
And the first jam plate can be pushed to act, the first jam plate contradicts in the trip shaft of back-up breaker and can be locked in back-up breaker
Gate-dividing state；The transition arm of second interlock plate and another group of transmission component is linked, second interlock plate with
Transition arm acts and can push the movement of the second jam plate, and the second jam plate contradicts in the trip shaft of common breaker and common can will break
Road device is locked in gate-dividing state.By being provided with interlocking mechanism in mechanism rack, which can effectively avoid common open circuit
Device, back-up breaker close a floodgate simultaneously, substantially increase the security performance and reliability of the double power supply automatic transfer switch；When common
When breaker is in closing position, wherein the transition arm of one group of transmission component contradicts on the first interlock plate, the first jam plate is with the
One interlock plate is acted and is contradicted in the trip shaft of back-up breaker, and back-up breaker is in trip status, spare open circuit at this time
Device can not close a floodgate；When back-up breaker is in closing position, the transition arm of another group of transmission component is contradicted in the second interlock plate
On, the second jam plate is acted with the second interlock plate and is contradicted in the trip shaft of common breaker, and common breaker is in de- at this time
Buckle-like state, common breaker can not close a floodgate.
Particularly, it is provided with square hole on one end of the common breaker/back-up breaker of transition arm direction, it is described
Square hole in be provided with square shaft, one end of square shaft is connected on common circuit breaker handle/back-up breaker handle.Conversion
Arm and common circuit breaker handle, back-up breaker handle are by rectangular axis connection, consequently facilitating transition arm and common breaker hand
The assembling of handle, back-up breaker handle.
Particularly, the outer shape of the shell and the shape of common breaker, back-up breaker match, described
Shell is made of the first lid and the second lid, and the bottom of shell is provided with and matches with common breaker, back-up breaker
Guide rail mounting groove, the shell connect by screw with common breaker, back-up breaker.The shell of the automatic transfer equipment
The form fit of the shape of body and common breaker, back-up breaker, consequently facilitating shell and common breaker, back-up breaker
Assembling, and the bottom of shell is provided with guide rail mounting groove, so that the double power supply automatic transfer switch is mountable on guide rail, just
In user installation.
Detailed description of the invention
Fig. 1 is perspective view of the embodiment of the present invention.
Fig. 2 is the perspective view of automatic transfer equipment of the present invention.
Fig. 3 is that automatic transfer equipment of the present invention removes the perspective view after shell.
Fig. 4 is the decomposition diagram of Fig. 3.
Fig. 5 is the perspective view of transmission component of the present invention.
Fig. 6 is the perspective view of interlocking mechanism of the present invention.
Specific embodiment
As shown in figs. 1 to 6, the embodiment of the present invention is a kind of miniature double power supply automatic transfer switch, including automatic conversion dress
Set 10, the common breaker 40 that connect with common power supply, the back-up breaker 50 connecting with backup power source, the common open circuit
Device 40, back-up breaker 50 are separately positioned on the two sides of automatic converter device 10, and the automatic transfer equipment 10 includes shell
11, the intelligent control wiring board 12 that is arranged in shell 11, is arranged in shell 11 mechanism rack 13 being arranged in shell 11
Motor 14, the bevel gear 15 being arranged on the output shaft of motor 14, be symmetrically distributed in 15 two sides of bevel gear and with bevel gear 15
Two groups of transmission components 20 of dynamic setting, the transmission component 20 include with the transmission gear 21 of the linkage setting of bevel gear 15, with
The cam 22 of the linkage setting of transmission gear 21 corresponds to be rotatably arranged in mechanism rack 13 at cam 22 and be used to drive and commonly uses open circuit
The transition arm 23 of 41/ back-up breaker handle 51 of device handle, the cam 22 rotate with transmission gear 21 and can drive conversion
Arm 23 rotates, and corresponds in the mechanism rack 13 and is movably set with separating brake part 24 between transmission gear 21 and cam 22, and passes
Moving gear 21 freely cooperates on combined floodgate direction with separating brake part 24, is linked on separating brake direction, sets in the shell 11
It is equipped with the interlocking mechanism 30 being linked with the transition arm 23, the intelligent control wiring board 12 is controlling motor 14 just
Turn, reversion, stopping movement.As shown in Figures 4 and 5, the transmission gear 21 is convex towards transmission is provided on the side of cam 22
Block 211 is provided with the convex block 221 matched with drive lugs 211 on the cam 22, and the drive lugs 211 are with biography
Moving gear 21 rotates and convex block 221 can be pushed to act and constitute being linked for transmission gear 21 and cam 22.By being driven
The drive lugs matched with cam are provided on gear, after drive lugs drive cam to closing position, motor driven transmission
Gear revolution, drive lugs are turned back to original position, so that drive lugs are turned round without limitation on cam, back rotation is can be performed in transition arm
Make, to will not influence the manual brake separating of common breaker or back-up breaker.As shown in Figures 4 and 5, the separating brake part 24
Shaft 241 is provided on top, shaft 241 is rotatably arranged in mechanism rack 13, is passed through respectively on the two sides on 24 top of separating brake part
One reset tension spring 242 is connected in mechanism rack 13, and the lower end of separating brake part 24 extends between drive lugs 211 and convex block 221,
The drive lugs 211 freely cooperate on combined floodgate direction with separating brake part 24, are linked on separating brake direction.By passing
It is provided with separating brake part between dynamic convex block and convex block, in separating brake, drive lugs are linked with separating brake part, when closing a floodgate, transmission
Convex block and separating brake part freely cooperate, and for the double power supply automatic transfer switch when switching two-way power supply, driving cam can pass through separating brake
Part can drive cam to execute separating brake movement in advance, so that the double power supply automatic transfer switch can realize elder generation when converting two-way power supply
The purpose closed a floodgate after separating brake improves reliability, the security performance of double power supply automatic transfer switch work.
As shown in Figure 4,5, 6, the interlocking mechanism 30 includes the main shaft 31 being arranged in shell 11, is rotatably arranged on master
It is the first interlock plate 32 on axis 31, the first tension spring 33 being connected between the first interlock plate 32 and mechanism rack 13, corresponding spare disconnected
Link the first jam plate 34 being arranged on the first interlock plate 32, be rotatably arranged on main shaft 31 second at the trip shaft of road device
Jam plate 35, the second tension spring 36 being connected between the second interlock plate 35 and mechanism rack 13, corresponding common breaker trip shaft at
Link the second jam plate 37 for being arranged on the second interlock plate 35, first interlock plate 32 and wherein one group of transmission component 20
Transition arm 23 is linked, and first interlock plate 32 acts with transition arm 23 and the first jam plate 34 can be pushed to act, and first
Jam plate 34 contradicts in the trip shaft of back-up breaker 50 and back-up breaker 50 can be locked in gate-dividing state；Described second
Interlock plate 35 and the transition arm 23 of another group of transmission component 20 are linked, and second interlock plate 35 is acted with transition arm 23
And the second jam plate 37 can be pushed to act, the second jam plate 37 contradicts in the trip shaft of common breaker 40 and can be by common breaker
40 are locked in gate-dividing state.By being provided with interlocking mechanism in mechanism rack, the interlocking mechanism can effectively avoid common breaker,
Back-up breaker closes a floodgate simultaneously, substantially increases the security performance and reliability of the double power supply automatic transfer switch；When common disconnected
When road device is in closing position, wherein the transition arm of one group of transmission component contradicts on the first interlock plate, the first jam plate is with first
Interlock plate is acted and is contradicted in the trip shaft of back-up breaker, and back-up breaker is in trip status, back-up breaker at this time
It can not close a floodgate；When back-up breaker is in closing position, the transition arm of another group of transmission component is contradicted on the second interlock plate,
Second jam plate is acted with the second interlock plate and is contradicted in the trip shaft of common breaker, is commonly used breaker at this time and is in tripping shape
State, common breaker can not close a floodgate.
As shown in Figures 3 and 4, the transition arm 23 is towards the side of being provided on one end of common breaker/back-up breaker
Shape hole is provided with square shaft 16 in the square hole, and it is spare disconnected that one end of square shaft 16 is connected to common circuit breaker handle 41/
On road device handle 51.Transition arm and common circuit breaker handle, back-up breaker handle are by rectangular axis connection, consequently facilitating conversion
The assembling of arm and common circuit breaker handle, back-up breaker handle.As illustrated in fig. 1 and 2, the outer shape of the shell 11 with
Common breaker 40, back-up breaker 50 shape match, the shell 11 is by the first lid 111 and the second lid 112
It constitutes, and the bottom of shell 11 is provided with the guide rail mounting groove 113 to match with common breaker 40, back-up breaker 50, institute
The shell 11 stated is connect by screw with common breaker 40, back-up breaker 50.The shape of the shell of the automatic transfer equipment
With the form fit of common breaker, back-up breaker, consequently facilitating the assembling of shell and common breaker, back-up breaker,
And the bottom of shell is provided with guide rail mounting groove, so that the double power supply automatic transfer switch is mountable on guide rail, is convenient for user
Installation.
The more compact simplification of the structure of the automatic transfer equipment of the double power supply automatic transfer switch, small volume, manufacture at
This is more cheap, can meet the automatic switchover of two-supply circuit in most cases.And it is arranged between transmission gear and cam
There is separating brake part, in separating brake, transmission gear is linked with separating brake part, and when closing a floodgate, transmission gear and separating brake part freely cooperate,
For the double power supply automatic transfer switch when switching two-way power supply, separating brake part can drive cam to execute separating brake movement in advance, thus should
Double power supply automatic transfer switch can realize the purpose closed a floodgate after first separating brake when converting two-way power supply；Connection is provided in mechanism rack
Latch mechanism, the interlocking mechanism can effectively avoid common breaker, back-up breaker while closing a floodgate.To the double power-supply automatic transferring
Switch has the advantages that compact-sized, high reliability, install convenient, small in size, safe and reliable.
Claims (5)
1. a kind of miniature double power supply automatic transfer switch, including automatic transfer equipment, the common breaker being connect with common power supply,
The back-up breaker connecting with backup power source, the common breaker, back-up breaker are separately positioned on automatic converter device
Two sides, it is characterised in that: the automatic transfer equipment include shell, be arranged in the intracorporal intelligent control wiring board of shell, set
It sets the bevel gear on the intracorporal mechanism rack of shell, the output shaft that the intracorporal motor of shell is set, motor is set, be symmetrically distributed in
Bevel gear two sides and two groups of transmission components being arranged with bevel gear linkage, the transmission component includes and bevel gear links and is arranged
Transmission gear, be rotatably arranged in mechanism rack with the cam of transmission gear linkage setting, at corresponding cam and normal for driving
With circuit breaker handle/back-up breaker handle transition arm, the transmission gear is towards being provided with transmission on the side of cam
Convex block, is provided with the convex block matched with drive lugs on the cam, the drive lugs rotated with transmission gear and
Convex block can be pushed to act and constitute being linked for transmission gear and cam, the cam is rotated and can be driven with transmission gear
Transition arm rotates, and corresponds in the mechanism rack and is movably set with separating brake part, and transmission gear between transmission gear and cam
Freely cooperate on combined floodgate direction with separating brake part, be linked on separating brake direction, be provided in the shell with it is described
The interlocking mechanism that transition arm is linked, the intelligent control wiring board control motor is rotated forward, is inverted, stopping acts.
2. miniature double power supply automatic transfer switch according to claim 1, it is characterised in that: the top of the separating brake part
On be provided with shaft, shaft is rotatably arranged in mechanism rack, is connected respectively by reset tension spring on the two sides on separating brake part top
It connects in mechanism rack, the lower end of separating brake part extends between drive lugs and convex block, and the drive lugs are being closed with separating brake part
Lock freely cooperates on direction, is linked on separating brake direction.
3. miniature double power supply automatic transfer switch according to claim 1 or 2, it is characterised in that: the interlocking mechanism
Including the intracorporal main shaft of shell is arranged in, the first interlock plate being rotatably arranged on main shaft, is connected to the first interlock plate and mechanism rack
Between the first tension spring, corresponding back-up breaker trip shaft at link the first jam plate being arranged on the first interlock plate, rotation
The second interlock plate for being arranged on main shaft, the second tension spring being connected between the second interlock plate and mechanism rack, corresponding common open circuit
Link the second jam plate being arranged on the second interlock plate at the trip shaft of device, first interlock plate and wherein one group of transmission group
The transition arm of part is linked, and first interlock plate acts with transition arm and the first jam plate can be pushed to act, the first jam plate
It contradicts in the trip shaft of back-up breaker and back-up breaker can be locked in gate-dividing state；Second interlock plate and another
The transition arm of one group of transmission component is linked, and second interlock plate acts with transition arm and the second jam plate can be pushed dynamic
Make, the second jam plate contradicts in the trip shaft of common breaker and common lock for circuit breaker can be scheduled on gate-dividing state.
4. miniature double power supply automatic transfer switch according to claim 1, it is characterised in that: the transition arm is towards often
It is provided with square hole on breaker/back-up breaker one end, is provided with square shaft in the square hole, the one of square shaft
End is connected on common circuit breaker handle/back-up breaker handle.
5. miniature double power supply automatic transfer switch according to claim 1, it is characterised in that: the external shape of the shell
The shape of shape and common breaker, back-up breaker matches, and the shell is made of the first lid and the second lid, and shell
The bottom of body is provided with the guide rail mounting groove to match with common breaker, back-up breaker, the shell by screw with
Common breaker, back-up breaker connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418096.7A CN107068452B (en) | 2017-06-06 | 2017-06-06 | Miniature double power supply automatic transfer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710418096.7A CN107068452B (en) | 2017-06-06 | 2017-06-06 | Miniature double power supply automatic transfer switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107068452A CN107068452A (en) | 2017-08-18 |
| CN107068452B true CN107068452B (en) | 2019-05-07 |
Family
ID=59615961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710418096.7A Active CN107068452B (en) | 2017-06-06 | 2017-06-06 | Miniature double power supply automatic transfer switch |
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| CN (1) | CN107068452B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359092B (en) * | 2017-09-04 | 2019-09-03 | 环宇集团浙江高科股份有限公司 | The electronic close/open machine of breaker |
| CN107629920A (en) * | 2017-11-13 | 2018-01-26 | 重庆市嘉利酒业有限公司 | Brewing system |
| CN107629921A (en) * | 2017-11-13 | 2018-01-26 | 重庆市嘉利酒业有限公司 | Brewing fermentation equipment |
| CN107946101A (en) * | 2017-11-17 | 2018-04-20 | 重庆奇甫机械有限责任公司 | Auto parts machinery drying machine |
| CN108198711A (en) * | 2018-02-05 | 2018-06-22 | 寺崎科技有限公司 | Double power supply automatic transfer switch |
| CN109667490B (en) * | 2018-12-26 | 2024-04-09 | 山东爱普电气设备有限公司 | Program interlocking device and switch cabinet |
| CN110254272B (en) * | 2019-06-25 | 2020-10-23 | 惠安县崇武镇锐锐海鲜干品店 | High-low voltage switching type electric automobile charging pile |
| CN110634693A (en) * | 2019-10-11 | 2019-12-31 | 华通机电股份有限公司 | Operating mechanism of dual-power transfer switch |
| CN111681892B (en) * | 2020-06-08 | 2022-05-24 | 罗格朗低压电器（无锡）有限公司 | Automatic change-over switch electric appliance |
| CN112038189B (en) * | 2020-08-19 | 2022-02-18 | 苏州飞腾电器有限公司 | Three-power-supply automatic change-over switch |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2932595Y (en) * | 2006-06-06 | 2007-08-08 | 翁红英 | An operating device for double power switching |
| CN201167039Y (en) * | 2008-03-24 | 2008-12-17 | 施耐德电器工业公司 | Automatic transfer switch apparatus and mechanical interlock transmission device thereof |
| CN201838488U (en) * | 2010-08-26 | 2011-05-18 | 巨邦电气有限公司 | Double-power automatic change-over switch |
| CN102760591B (en) * | 2012-07-14 | 2016-08-17 | 上海良信电器股份有限公司 | The conversion and control mechanism of transfer switching equipment |
| CN104036986B (en) * | 2014-06-25 | 2016-08-31 | 云南追梦科技有限公司 | A kind of drive mechanism of double power supply automatic transfer switch |
| CN204117876U (en) * | 2014-09-03 | 2015-01-21 | 浙江正泰电器股份有限公司 | A kind of double power supply automatic transfer switch |
| US9595408B2 (en) * | 2014-10-30 | 2017-03-14 | Eaton Corporation | Electrical system and operating handle interface assembly therefor |
| CN105185666B (en) * | 2015-07-23 | 2017-12-29 | 德力西电气有限公司 | A kind of screw drive formula dual-power transfer switch |
| CN106158456B (en) * | 2016-08-30 | 2018-02-02 | 浙江万松电气有限公司 | Automatic change-over electric appliance with duplicate |
| CN206774417U (en) * | 2017-06-06 | 2017-12-19 | 环宇集团浙江高科股份有限公司 | Miniature double power supply automatic transfer switch |
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- 2017-06-06 CN CN201710418096.7A patent/CN107068452B/en active Active
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Address after: 325600 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: Huanyu Hi Tech Co.,Ltd. Address before: 325603 Wenzhou Daqiao Industrial Park, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: HUANYU GROUP ZHEJIANG HIGH-TECH Co.,Ltd. |
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