CN209401546U - On-load switch - Google Patents
On-load switch Download PDFInfo
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- CN209401546U CN209401546U CN201821953769.5U CN201821953769U CN209401546U CN 209401546 U CN209401546 U CN 209401546U CN 201821953769 U CN201821953769 U CN 201821953769U CN 209401546 U CN209401546 U CN 209401546U
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- load switch
- switch
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- load
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Abstract
The application provides a kind of on-load switch.The on-load switch includes shell, fixed mechanism, switch interface and operating mechanism.The fixed mechanism is set to the shell, for the on-load switch to be fixed on exterior surface to be installed.For example, the fixed mechanism may be implemented for the on-load switch to be fixed on metope, and then achieve the purpose that the on-load switch carries out operation at narrow scene.The switch interface is set to the shell, is electrically connected respectively with faulty circuit and bypass for realizing the on-load switch.The switch interface is equipped with waterproof cover.The waterproof cover is for preventing the switch interface moisture damage.The operating mechanism is set to the lateral surface of the shell, for controlling the on-off of the on-load switch.
Description
Technical field
This application involves a kind of technical field of electronic devices, more particularly to a kind of on-load switch.
Background technique
When cable run encounters failure, in order to reduce power off time, mostly use bypass operation method carry out by-pass shunt after
Continue to customer power supply.When implementing bypass operation method, needs to use on-load switch and bypass to be detected or construction equipment
It shunts.
Traditional on-load switch volume is big, need to independently take up an area, difficult in narrow field operation.Certain of on-load switch simultaneously
If a component dampness or water inlet, may cause on-load switch damage, and then cause line security problem.
Utility model content
Based on this, it is necessary to aiming at the problem that traditional on-load switch difficult and moisture-sensitive in narrow field operation, mention
For a kind of on-load switch.
A kind of on-load switch includes:
Shell；
Fixed mechanism is set to the shell, for the on-load switch to be fixed on exterior surface to be installed；
Switch interface is set to the shell, is electrically connected respectively with faulty circuit and bypass for realizing the on-load switch
It connects, the switch interface is equipped with waterproof cover, and the waterproof cover is for preventing the switch interface moisture damage；And
Operating mechanism is set to the lateral surface of the shell, for controlling the on-off of the on-load switch.
The fixed mechanism includes: in one of the embodiments,
Wall construction is hung, lateral surface of the shell far from the operating mechanism is fixedly installed on.
The extension wall construction includes: in one of the embodiments,
Wallboard is threadedly coupled with the exterior surface to be installed.
The fixed mechanism in one of the embodiments, further include:
On-load switch bracket is fixedly installed on the lateral surface of the shell, described when the on-load switch is placed on ground
On-load switch bracket is used to support the on-load switch.
The on-load switch bracket is angle-style bracket in one of the embodiments, and the on-load switch is in transportational process
In or it is fixed using the extension wall construction when on-load switch bracket be accommodated in the shell.
The waterproof cover includes: in one of the embodiments,
Insulating waterproof layer is set to the waterproof cover medial surface, described when the waterproof cover lid closes the switch interface
Switch interface described in insulating waterproof layer tight.
The making material of the insulating waterproof layer is Impermeable Polymer Materials, butyl rubber in one of the embodiments,
One of glue and polyurethane are a variety of.
The operating mechanism includes: in one of the embodiments,
Electric operating component is fixedly installed on the shell, for on-load switch described in auto switching.
The electric operating component includes: in one of the embodiments,
Motor is fixedly installed on side of the shell far from the fixed mechanism；
Gear is driven, is electrically connected with the motor, the motor provides power for the rotation of the driving gear；
Transmission gear is connect with the sliding tooth wheel drive；
Torque gear is drivingly connected with the transmission gear；And
Controller is connect with the electric operating component, for control the motor forward or reverse with control described in
The on off operating mode of on-load switch.
The transmission gear includes: in one of the embodiments,
First-level variable-speed gear is connect with the sliding tooth wheel drive；And
Two stage speed change gear is drivingly connected with the first-level variable-speed gear and the torque gear respectively.
The application provides a kind of on-load switch.The on-load switch includes shell, fixed mechanism, switch interface and operation machine
Structure.The fixed mechanism is set to the shell, for the on-load switch to be fixed on exterior surface to be installed.For example, institute
Stating fixed mechanism may be implemented for the on-load switch to be fixed on metope, and then reach the on-load switch at narrow scene
Carry out the purpose of operation.The switch interface is set to the shell, for realizing the on-load switch respectively with faulty circuit
With the electrical connection of bypass.The switch interface is equipped with waterproof cover.The waterproof cover is for preventing the switch interface moisture damage.
The operating mechanism is set to the lateral surface of the shell, for controlling the on-off of the on-load switch.
Detailed description of the invention
Fig. 1 is a kind of on-load switch structural schematic diagram provided in the application one embodiment；
Fig. 2 is a kind of on-load switch structural schematic diagram provided in another embodiment of the application；
Fig. 3 is a kind of on-load switch switch interface structural schematic diagram provided in the application one embodiment；
Fig. 4 is a kind of on-load switch explosive view provided in the application one embodiment；
Fig. 5 is the magnified partial view of operating mechanism in Fig. 4.
Main element drawing reference numeral explanation
On-load switch 100
Shell 10
Fixed mechanism 20
Hang wall construction 21
Wallboard 211
On-load switch bracket 22
Switch interface 30
Waterproof cover 31
Insulating waterproof layer 311
Operating mechanism 40
Axis front end panel 401
Axis rear bearing sheet 402
Front shoe 403
Rear fixed plate 404
Gear fixed block 405
Overhead gage 406
Intermediate fixed link 407
Trip counter 408
Gear sheath 409
Electric operating component 41
Motor 410
Drive gear 420
Transmission gear 430
First-level variable-speed gear 431
Two stage speed change gear 432
Torque gear 440
Controller 450
Gear shaft 460
Handle 42 is manually operated
Specific embodiment
In order to which the objects, technical solutions and advantages of the application are more clearly understood, by the following examples, and combine attached
Figure, is further elaborated a kind of on-load switch of the application.It should be appreciated that specific embodiment described herein is only
To explain the application, it is not used to limit the application.
Referring to Figure 1, the application provides a kind of on-load switch 100.The on-load switch 100 includes shell 10, fixed machine
Structure 20, switch interface 30 and operating mechanism 40.
The shape of the shell 10 is with no restrictions.The shape of the shell 10 is cuboid in one of the embodiments,.
The making material of the shell 10 without limitation, as long as being able to achieve insulation.The fixed mechanism 20 is set to the shell
10 trailing flank or bottom surface.The fixed mechanism 20 is used to the on-load switch 100 being fixed on exterior surface to be installed.Than
It such as, can be by the fixed mechanism 20 by the on-load switch when the on-load switch 100 need to be in narrow job space
100 fixations are hung on metope, carry out operation in narrow space convenient for staff.When the on-load switch 100 is enough
When the local operation of spaciousness, the on-load switch can be fixed on by bottom surface or other horizontal planes by the fixed mechanism 20
On.The switch interface 30 is set to the shell 10.The on-load switch interface 30 is symmetrical in one of the embodiments,
The two sides for being set to the on-load switch 100.The switch interface 30 for realizing the on-load switch 100 respectively with failure
Circuit and bypass electrical connection.The switch interface 30 is equipped with waterproof cover 31.The waterproof cover 31 can by way of plug or
The mode of threaded connection completely cuts off switch interface 30 and outside air.The waterproof cover 31 for prevent the switch interface 30 by
Tide damage.The operating mechanism 40 is set to the lateral surface of the shell 10, for controlling the on-off of the on-load switch 100.
The application provides a kind of on-load switch 100.The on-load switch 100 includes shell 10, fixed mechanism 20, switch
Interface 30 and operating mechanism 40.The fixed mechanism 20 is set to the shell 10, for the on-load switch 100 to be fixed on
Exterior surface to be installed.For example, the fixed mechanism 20 may be implemented for the on-load switch 100 to be fixed on metope, in turn
Achieve the purpose that the on-load switch 100 carries out operation at narrow scene.The switch interface 30 is set to the shell 10,
It is electrically connected respectively with faulty circuit and bypass for realizing the on-load switch 100.The switch interface 30 is equipped with waterproof cover
31.The waterproof cover 31 is for preventing 30 moisture damage of switch interface.The operating mechanism 40 is set to the shell 10
Lateral surface, for controlling the on-off of the on-load switch 100.
Fig. 2 is referred to, the fixed mechanism 20 includes hanging wall construction 21 and on-load switch branch in one of the embodiments,
Frame 22.
The extension wall construction 21 is fixedly installed on lateral surface of the shell 10 far from the operating mechanism 40.The extension wall
Structure 21 includes wallboard 211.The making material of the wallboard 211 with no restrictions, as long as being able to achieve the on-load switch
100 are fixed on the object surface to be installed.In one embodiment, the wallboard is made using metal material.
The wallboard 211 is threadedly coupled with the exterior surface to be installed.In one embodiment, when the wallboard 211 and institute
When stating exterior surface to be installed threaded connection, screw hole is offered on the wallboard, bolt is by the screw hole with described wait pacify
Dress exterior surface is fixedly connected.In another embodiment, multiple wallboards 211, the extension are set on the shell 10
Accommodation space (not shown) is formed between wallboard 211 and the shell 10.Mounting rack is arranged in the exterior surface to be installed.
The mounting rack passes through the accommodation space and the on-load switch is fixed on the object surface to be installed.The on-load switch branch
Frame 22 is fixedly installed on the lateral surface of the shell 10.In one embodiment, the on-load switch bracket 22 is set to described
The bottom of shell 10.The on-load switch bracket 22 is angle-style bracket.It is described negative when the on-load switch 100 is placed in ground
Lotus switch bracket 22 is used to support the on-load switch 100.The on-load switch 100 during transportation or use the extension wall
When structure 21 is fixed, the on-load switch bracket 22 is accommodated in the shell 10.
In the present embodiment, the fixed mechanism 20 includes hanging wall construction 21 and on-load switch bracket 22.When the load is opened
When closing 100 need to work in narrow environment, the on-load switch 100 can be fixed on by wall by the extension wall construction 21
The working space of the on-load switch 100 is saved in face.At this point, the on-load switch bracket 22 is accommodated in the shell 10.Work as institute
When stating on-load switch 100 and working in spacious environment, in order to easy to operate, it is not required to the on-load switch 100 hanging on wall
Face.The on-load switch 100 is fixedly placed in bottom surface or work using the on-load switch bracket 22 by the on-load switch 100
Plane.The extension wall construction 21 and the on-load switch bracket 22 realize the consolidating in complex environment of on-load switch 100
The problem of Dingan County fills, avoids the generation of dangerous situation.
Fig. 3 is referred to, the waterproof cover 31 includes insulating waterproof layer 311 in one of the embodiments,.
The insulating waterproof layer 311 is set to 31 medial surface of waterproof cover.The insulative water-proof in one embodiment
The entire medial surface of the 311 covering waterproof cover 31 of layer.In another embodiment, the insulating waterproof layer 311 covers described
Medial surface of the waterproof cover 31 close to opening.When the waterproof cover 31, which covers, closes the switch interface 30, the insulating waterproof layer 311
Switch interface 30 described in tight.
In the present embodiment, the waterproof cover 31 includes insulating waterproof layer 311.The insulating waterproof layer 311 covers described anti-
The entire medial surface or the insulating waterproof layer 311 of water cover 31 cover the waterproof cover 31 close to the medial surface of opening.Work as institute
State waterproof cover 31 by way of plug or the mode of threaded connection and the switch interface 30 lid close when, the insulative water-proof
Layer 311 is by 30 tight of switch interface.Prevent the switch interface 30 from contacting with extraneous humid air.The insulation
Waterproof layer 311 is for preventing 30 moisture damage of switch interface.
Fig. 4 and Fig. 5 are referred to, wherein Fig. 5 is the magnified partial view of operating mechanism 40 in Fig. 4.One embodiment wherein
In, the operating mechanism 40 includes electric operating component 41.
The electric operating component 41 is fixedly installed on the shell 10, for on-load switch 100 described in auto switching.
The electric operating component 41 include axis front end panel 401, axis rear bearing sheet 402, front shoe 403, rear fixed plate 404, on
Baffle 406, intermediate fixed link 407, travel switch seat 408, gear sheath 409, motor 410, driving gear 420, transmission gear
430, torque gear 440, controller 450 and gear shaft 460.
The motor 410 is fixedly installed on side of the shell 10 far from the fixed mechanism 20.Specifically, the shell
Body 10 is set between the motor 410 and the on-load switch bracket 22.The overhead gage 406 is fixedly installed on the motor
410 top is for protecting the motor 410.The motor 410 can be installed in many ways to 10 top of shell.Such as
Welding, riveting etc..
The driving gear 420 is electrically connected by the gear shaft 460 with the motor 410.The motor 410 is institute
The rotation for stating driving gear provides power.The transmission gear 430 is drivingly connected with the driving gear 420.Implement at one
In example, the transmission gear 430 includes first-level variable-speed gear 431 and two stage speed change gear 432.The first-level variable-speed gear 431
It is drivingly connected with the driving gear 420.The two stage speed change gear 432 respectively with the first-level variable-speed gear 431 and described
Torque gear 440 is drivingly connected.The torque gear 440 is drivingly connected with the transmission gear 430.It is the motor 410, described
Driving gear 420, the transmission gear 430 and the torque gear 440, which are successively drivingly connected, forms a drive path.Institute
The trip device (not shown) for stating torque gear 440 and the on-load switch 100 is drivingly connected, and is opened to control the load
Close 100 on off operating mode.
First receiving space is formed between the axis front end panel 401 and the axis rear bearing sheet 402.Described first accommodates
Space is for placing the driving gear 420 and the first-level variable-speed gear 431.The axis rear bearing sheet 402 is set to described
It drives between gear 402 and the motor 410.First through hole is set on the axis rear bearing sheet 402.The gear shaft 460 is worn
The first through hole is crossed to be drivingly connected with the driving gear 402 and the motor 410 respectively.The axis front end panel 401 is opened
Equipped with the second through-hole.Pass through driving axis connection between the level-one change pulley 431 and the two step speed changing wheel 432.The driving
Axis passes through second through-hole and is drivingly connected respectively with the level-one change pulley 431 and the two step speed changing wheel 432.By described
The two stage speed change gear 402 and the torque gear 440 are drivingly connected by gear sheath 409.
The controller 450 is connect with the electric operating component 41.The controller 450 is for controlling the motor
410 forward or reverse to control the on off operating mode of the on-load switch 100.The controller 450 can be integrated control electricity
Road or logic control circuit etc..It can control the movements such as the rotating forward of motor 410, reversing or stopping by the controller 450.
In one embodiment, radio transmitting device or network communication device, Jin Ershi can be loaded in the controller 450
It now remotely controls the electric operating component 41 and the on-load switch 100 is subjected to on-off.
When needing to operate the on-load switch 100, by remote controlled manner or electric operating button fortune can be pressed
The row electric operating component 41.The operation of motor 410 drives the driving gear 420 to rotate, and is become by the level-one
Fast gear 431 and the two stage speed change gear 432 convert high-torque for high revolving speed step by step and then drive the torque gear
440, to realize the division of the trip device and then realize the on-off of the on-load switch 100.
The front shoe 403 and the rear fixed plate 404 are fixedly installed on the front and rear sides of the shell 10 respectively.Institute
It states and is connected between front shoe 403 and the rear fixed plate 404 by the intermediate fixed link 407.403 He of front shoe
The rear fixed plate 404 is for fixing the operating mechanism 40.The trip counter 408 is fixedly installed on the front shoe
On 403.The trip counter 408 is used to count the work times of the on-load switch 100, and then monitors the on-load switch
100 service life avoids 100 surpassing the generation that time limit work causes the accident because of the on-load switch.
In the present embodiment, the operating mechanism 40 includes electric operating component 41.By in the electric operating component 41
The motor 410, the driving gear 420, the transmission gear 430 and the torque gear 440 are successively drivingly connected shape
At a drive path control the on off operating mode of the on-load switch 100.And it can be loaded in the controller 450
Radio transmitting device or network communication device, and then realize and remotely control the electric operating component 41 for the on-load switch
100 carry out on-off.The mode of operation remotely controlled is avoided when occurring unexpected in route, has staff at the scene, thus
Generation is difficult to expect consequence.The electric operating component 41 replaces the mode of on-load switch 100 described in electric operating
The mode of traditional manual operation on-load switch 100 so that on-load switch 100 described in on-off the operation is more convenient and
Intelligence.
The operating mechanism 40 further includes manual operation handle 42 and gear fixed block 405 in one of the embodiments,.
The manual operation handle 42 is fixedly connected with the torque gear 440.The gear fixed block 405 will be described
Torque gear 440 locks on the manual operation handle 42.When the on-load switch 100 electric operating component 41 damage or
Person is not powered on when being unable to run, and staff can be by rotating the manual operation handle 42, and then the rotation torque tooth
Wheel 440, to realize on-load switch 100 described in the trip device on-off connecting with the torque gear 440.
In the present embodiment, the operating mechanism 40 further includes manual operation handle 42 and gear fixed block 405.The gear
Fixed block 405 locks the torque gear 440 on the manual operation handle 42.It is electronic when the on-load switch 100
Operating assembly 41 is damaged or is not powered on when being unable to run, since the operating handle 42 has certain length, with the power
Square gear 440, which is used cooperatively, can mitigate certain burden for staff.
Bypass equipment line attachment is first made into the bypass equipment and Awaiting Overhaul equipment paired running when bypass operation.So
Awaiting Overhaul equipment is detached from from route afterwards and carries out operation.Continued at this time from bypass equipment to customer power supply.The Awaiting Overhaul is set
It is put into route again after standby maintenance, then the bypass equipment is removed.
The specific steps of bypass operation include:
S100, observation maintenance line condition, builds by-pass line, installs on-load switch 100.
S200, successively access bypasses terminal fitting, bypass transition joint and T-type transition joint shape in the by-pass line
At bypass drainage thread.
S300 powers off trouble hunting section route, and the bypass drainage thread put up is accessed trouble hunting section two sides,
Then lead is connect to user's branch line from T connector.
S400 is powered with changing fuse switch, power turn-on in trouble hunting section, opens the on-load switch 100.
S500 after the completion of maintenance, closes the on-load switch 100, withdraws from bypass operation route, and operation is completed.
On-load switch 100 described in bypass operation is used cooperatively with the fuse switch is isolated Awaiting Overhaul section and leads to
It crosses bypass equipment and continues the complexity for achieving the purpose that reduce power off time, simplify operation to customer power supply.
The on-load switch 100 include ground hole, switch interface 30, anti-misoperation lock, electric operating component 41 and manually
Operating handle 42.100 application method of on-load switch includes:
The on-load switch 100 is fixed on the surface with fixture by S10.
The ground hole is grounded by S20；Using cleaning paper in the cable terminal and the switch interface 30
Insulated part is cleaned, and smears insulating silicon fat.
Cable terminal is connected on the switch interface 30 by S30 according to the corresponding phase color of cable, and using pulling out outside
Mode confirms whether cable is connected firmly with the switch interface 30.
Anti-misoperation lock is drawn to " unlocking " state, then utilizes the electric operating component 41 or institute by S40
It states manual operation handle 42 on-load switch 100 is connected, then anti-misoperation lock is drawn to the state for arriving " locking ".
After the completion of service work, when disconnecting the on-load switch 100, anti-misoperation lock is first drawn to " unlocking " shape
State.Then the on-load switch 100 is disconnected with the electric operating component 41 or the manual operation handle 42, then will be prevented
Maloperation lock draws the state for arriving " locking ".
The insulated part in the cable terminal and the switch interface 30 is cleaned using cleaning paper, and is smeared
Insulating silicon fat effectively prevents the case where leaking electricity in the on-load switch 100 and the cable terminal connection procedure
Occur.Zipper is carried out to anti-misoperation lock or locking avoids in route and occurs surprisingly, thus after generation is difficult to expect
Fruit occurs.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of on-load switch (100) characterized by comprising
Shell (10)；
Fixed mechanism (20) is set to the shell (10), for the on-load switch (100) to be fixed on beyond the region of objective existence table to be installed
Face；
Switch interface (30) is set to the shell (10), for realizing the on-load switch (100) respectively with faulty circuit and
Bypass electrical connection, the switch interface (30) are equipped with waterproof cover (31), and the waterproof cover (31) is for preventing the switch interface
(30) moisture damage；And
Operating mechanism (40), is set to the lateral surface of the shell (10), for controlling the on-off of the on-load switch (100).
2. on-load switch (100) according to claim 1, which is characterized in that the fixed mechanism (20) includes:
It hangs wall construction (21), is fixedly installed on the lateral surface of the shell (10) far from the operating mechanism (40).
3. on-load switch (100) according to claim 2, which is characterized in that the extension wall construction (21) includes:
Wallboard (211) is threadedly coupled with the exterior surface to be installed.
4. on-load switch (100) according to claim 2, which is characterized in that the fixed mechanism (20) further include:
On-load switch bracket (22), is fixedly installed on the lateral surface of the shell (10), and the on-load switch (100) is placed on ground
When face, the on-load switch bracket (22) is used to support the on-load switch (100).
5. on-load switch (100) according to claim 4, which is characterized in that the on-load switch bracket (22) is angle-style
Bracket, when the on-load switch (100) is fixed during transportation or using the extension wall construction (21), the on-load switch branch
Frame (22) is accommodated in the shell (10).
6. on-load switch (100) according to claim 1, which is characterized in that the waterproof cover (31) includes:
Insulating waterproof layer (311) is set to the waterproof cover (31) medial surface, connects when the waterproof cover (31) lid closes the switch
When mouth (30), switch interface (30) described in insulating waterproof layer (311) tight.
7. on-load switch (100) according to claim 6, which is characterized in that the production material of the insulating waterproof layer (311)
Material is one of Impermeable Polymer Materials, butyl rubber and polyurethane or a variety of.
8. on-load switch (100) according to claim 1, which is characterized in that the operating mechanism (40) includes:
Electric operating component (41) is fixedly installed on the shell (10), for on-load switch (100) described in auto switching.
9. on-load switch (100) according to claim 8, which is characterized in that the electric operating component (41) includes:
Motor (410) is fixedly installed on the side of the shell (10) far from the fixed mechanism (20)；
It drives gear (420), is electrically connected with the motor (410), the motor (410) provides for the rotation of the driving gear
Power；
Transmission gear (430) is drivingly connected with the driving gear (420)；
Torque gear (440) is drivingly connected with the transmission gear (430)；And
Controller (450) is connect, for controlling the motor (410) forward or reverse with the electric operating component (41)
To control the on off operating mode of the on-load switch (100).
10. on-load switch (100) according to claim 9, which is characterized in that the transmission gear (430) includes:
First-level variable-speed gear (431) is drivingly connected with the driving gear (420)；And
Two stage speed change gear (432) connects with the first-level variable-speed gear (431) and the torque gear (440) driving respectively
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821953769.5U CN209401546U (en) | 2018-11-26 | 2018-11-26 | On-load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821953769.5U CN209401546U (en) | 2018-11-26 | 2018-11-26 | On-load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209401546U true CN209401546U (en) | 2019-09-17 |
Family
ID=67880803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821953769.5U Active CN209401546U (en) | 2018-11-26 | 2018-11-26 | On-load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209401546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449039A (en) * | 2018-11-26 | 2019-03-08 | 深圳供电局有限公司 | On-load switch |
-
2018
- 2018-11-26 CN CN201821953769.5U patent/CN209401546U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449039A (en) * | 2018-11-26 | 2019-03-08 | 深圳供电局有限公司 | On-load switch |
| CN109449039B (en) * | 2018-11-26 | 2024-04-26 | 深圳供电局有限公司 | Load switch |
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