CN112331513A - Power switch capable of relieving arc pull - Google Patents
Power switch capable of relieving arc pull Download PDFInfo
- Publication number
- CN112331513A CN112331513A CN202011141528.2A CN202011141528A CN112331513A CN 112331513 A CN112331513 A CN 112331513A CN 202011141528 A CN202011141528 A CN 202011141528A CN 112331513 A CN112331513 A CN 112331513A
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- driving
- driving block
- rod
- conductive
- channel
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- 239000012530 fluid Substances 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 240000007643 Phytolacca americana Species 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000010891 electric arc Methods 0.000 abstract description 9
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000001771 impaired effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H29/00—Switches having at least one liquid contact
- H01H29/02—Details
- H01H29/04—Contacts; Containers for liquid contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H29/00—Switches having at least one liquid contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H29/00—Switches having at least one liquid contact
- H01H29/02—Details
Landscapes
- Contacts (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to the technical field of power switches, and discloses a power switch capable of relieving arc strain, which comprises a switch body, conductive fluid, a control mechanism, a first driving block and a second driving block, wherein the left end part of the switch body is provided with a first driving channel and a second driving channel, and one end of the first driving channel is communicated with one end of the second driving channel; the first driving block and the second driving block are connected in the first driving channel and the second driving channel in a sliding fit mode, and the conductive fluid is clamped between the first driving block and the second driving block; the lower end of the switch body is provided with a first conductive joint in contact connection with the conductive fluid and a second conductive joint in intermittent contact connection with the conductive fluid, and the control mechanism is respectively connected with the first driving block and the second driving block; the problem of among the prior art electrical apparatus switch produce the electric arc burn very easily in the use, and then lead to switch sensitivity to reduce, also make the conductivity of switch reduce simultaneously to because long-time burn makes the switch impaired, and then lead to life to reduce, have the potential safety hazard is solved.
Description
Technical Field
The invention relates to the technical field of power switches, in particular to a power switch capable of relieving arc pull.
Background
When the switch electric appliance is used for cutting off current, if the circuit voltage is not lower than 10-20V and the current is not less than 80-100mA, electric arcs can be generated between contacts of the electric appliance; therefore, in the normal use process of the switch, when power personnel need to electrically disconnect the isolating switch, the moving contact is easy to generate electric arc at the moment of being separated from the static contact, so that the contact part of the moving contact and the static contact is burnt, the current conduction performance of the isolating switch is reduced, the service life is shortened, and potential safety hazards are caused to working personnel; of course, the generation of such an arc is difficult to avoid, so it is necessary to try to minimize the problems caused by the arc, reduce the damage of the arc to the switch during the use of the switch, increase the service life of the switch, and ensure the personal safety of the working personnel.
Disclosure of Invention
The invention provides a power switch capable of relieving arc pull, which has the advantages of preventing arc pull, prolonging service life, safety and reliability, and solves the problems that an electric switch in the prior art is easy to generate arc burn in the using process, a plurality of nodes are formed at the burn part due to burn, the sensitivity of the switch is reduced, the conductivity of the switch is reduced, the switch is damaged due to long-time burn, the service life is reduced, and potential safety hazards exist.
The invention provides the following technical scheme: a power switch capable of relieving arc pull comprises a switch body, conductive fluid, a control mechanism, a first driving block and a second driving block; the left end part of the switch body is provided with a first driving channel and a second driving channel, the first driving channel is positioned on the upper side of the second driving channel, and the first driving channel is communicated with the left end of the second driving channel; the first driving block is connected in the first driving channel in a sliding fit mode, and the second driving block is connected in the second driving channel in a sliding fit mode; the conductive fluid is located within the first drive channel and the second drive channel and is sandwiched between the first drive block and the second drive block; the lower end of the switch body is provided with a first conductive joint and a second conductive joint, the first conductive joint and the second conductive joint extend inwards into the second driving channel, the first conductive joint is communicated with the conductive fluid, and the second conductive joint is intermittently communicated with the conductive fluid; a liquid storage tank is arranged at the second conductive joint and communicated with the second driving channel; the right end part of the switch body is provided with a control cavity, the control mechanism is arranged in the control cavity, and the control mechanism is connected with the first driving block and the second driving block respectively.
Preferably, the control mechanism comprises a poke rod, a rotating shaft, a tension spring, a gear and a tension rod; a fixed support plate is fixedly connected to the center of the bottom of the control cavity, the rotating shaft is connected with the upper end of the fixed support plate in a rotating fit mode, and the gear is fixedly connected to the front end of the rotating shaft; a toggle groove is formed in the inner wall of the top of the control cavity in a communicating mode, the toggle rod is movably connected in the toggle groove, the lower end of the toggle rod is fixedly connected to the rear end of the rotating shaft, and the upper end of the tension rod is connected with the rear end of the rotating shaft in a rotating fit mode; one end of the tension spring is fixedly connected with the middle part of the poke rod, and the other end of the tension spring is fixedly connected with the lower end of the tension rod.
Preferably, two limiting plates which are symmetrical left and right are arranged on two sides of the bottom of the control cavity, and the limiting plates are connected with the lower end of the tension rod in an abutting contact manner; two bilaterally symmetrical limiting rods are arranged on two sides of the inner wall of the rear end of the control cavity, and the limiting rods are connected with the middle of the poke rod in an abutting contact mode.
Preferably, a first driving rod is fixedly connected to the end face of the right side of the first driving block, and the driving rod is connected between the first driving channel and the control cavity in a sliding fit manner; a second driving rod is fixedly connected to the right end face of the second driving block, and the first driving rod is connected between the second driving channel and the control cavity in a sliding fit manner; the right ends of the first driving rod and the second driving rod are respectively provided with a rack, and the racks are respectively meshed with the upper side and the lower side of the gear.
Preferably, the conductive fluid is a conductive liquid metal.
Preferably, the first driving block and the second driving block are made of an insulating material.
Preferably, when the switch is in the off state, the second driving block is located between the first conductive joint and the second conductive joint, the conductive fluid is not in contact with the second conductive joint, the first driving block is located on the right side of the second driving block, and the poke rod inclines to the right; when the driving mechanism is in a conducting state, the second driving block is located on the right side of the second conductive connector, the conductive fluid is in contact with the second conductive connector, the first driving block is located on the left side of the second driving block, and the poke rod inclines to the left.
The invention has the following beneficial effects:
the power switch capable of relieving arc damage provides a new idea of controlling the on-off of the switch by using a conductive fluid and reducing arc damage.
Second, this can slow down power switch that electric arc was strained, control conducting fluid through control mechanism and realize switching on and off of first conductive contact and second conductive contact, and then realize the break-make of switch, because the existence that conducting fluid liquid state has the characteristic for burn degree at electric arc reduces by a wide margin, and then prolongs the life of switch.
Third, this power switch that can alleviate electric arc and pull, utilize first drive piece and second drive piece to promote the flow of conducting fluid in first drive passageway and second drive passageway to make conducting fluid and second conductive joint contact realize circular telegram, or with the second conductive joint contactless realization outage, changed in the past the movable contact, the stationary contact can produce the node because of the electric arc burning in the contact or disconnection process, make the contact impaired and lead to the problem that sensitivity and electric conductivity reduce simultaneously.
Fourth, this can slow down power switch that electric arc pulled, control mechanism realizes through pulling the poker rod to carry out spacing and locking through tension spring, limiting plate and gag lever post, prevent that its condition out of control from appearing in the use, also can not bring the potential safety hazard for staff's the person because of the production of electric arc simultaneously.
Drawings
FIG. 1 is a schematic illustration of the off state of the present invention;
FIG. 2 is a partial schematic view of a control mechanism according to the present invention;
FIG. 3 is a diagram illustrating the ON state of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an electric switch capable of alleviating arc damage includes a switch body 1, a conductive fluid 2, a control mechanism 3, a first driving block 4 and a second driving block 5.
The left end of the switch body 1 is provided with a first driving channel 11 and a second channel 16, the first driving channel 11 is located on the upper side of the second driving channel 16, and the left end of the first driving channel 11 is communicated with the left end of the second driving channel 16 for the flow of the conductive fluid 2; the first driving block 4 is connected in the first driving channel 11 in a sliding fit mode, and the second driving block 5 is connected in the second driving channel 16 in a sliding fit mode; the conductive fluid 2 is positioned in the first driving channel 11 and the second driving channel 16, and the conductive fluid 2 is clamped between the first driving block 4 and the second driving block 5, so that the conductive fluid 2 is driven to flow by the cooperation of the first driving block 4 and the second driving block 5, and the on-off of the switch is further realized; the lower end of the switch body 1 is provided with a first conductive joint 14 and a second conductive joint 15, the first conductive joint 14 and the second conductive joint 15 extend inwards into a second driving channel 16, the first conductive joint 14 is communicated with the conductive fluid 2, the second conductive joint 15 is intermittently communicated with the conductive fluid 2, and the on-off of the switch is controlled by whether the conductive fluid 2 is contacted with the second conductive joint 15 or not; a liquid storage tank 17 is arranged at the second conductive joint 15, and the liquid storage tank 17 is communicated with the second driving channel 16; the liquid storage tank 17 is used for storing part of the conductive fluid 2, so that the second connector lug 15 is prevented from being damaged due to electric arc when the connector lug is conducted; the right end part of the switch body 1 is provided with a control cavity 12, the control mechanism 3 is arranged in the control cavity 12, the control mechanism 3 is respectively connected with the first driving block 4 and the second driving block 5, and the first driving block 4 and the second driving block 5 are controlled by the control mechanism 3 to realize whether the conductive fluid 2 is in contact with the second conductive connector 15 or not, so that the on-off of the switch is controlled.
The control mechanism 3 comprises a poke rod 31, a rotating shaft 33, a tension spring 32, a gear 34 and a tension rod 35; the center of the bottom of the control cavity 12 is fixedly connected with a fixed support plate 121, a rotating shaft 33 is connected with the upper end of the fixed support plate 121 in a rotating fit manner, and a gear 34 is fixedly connected with the front end of the rotating shaft 33; a toggle groove 13 is communicated with the inner wall of the top of the control cavity 12, a toggle rod 31 is movably connected in the toggle groove 13, the lower end of the toggle rod 31 is fixedly connected to the rear end of a rotating shaft 33, and the upper end of a tension rod 35 is connected with the rear end of the rotating shaft 33 in a rotating fit manner; one end of a tension spring 32 is fixedly connected with the middle part of the poke rod 31, and the other end of the tension spring 32 is fixedly connected with the lower end of a tension rod 35; namely: the poke rod 31 is pulled to drive the rotating shaft 33 to rotate on the fixed support plate 121, so as to drive the gear 34 to rotate, and meanwhile, under the action of the tension spring 32, the tension rod 35 also deflects along with the poke rod 31 in the same direction, so that the poke rod 31 is locked, namely the gear 34 is locked.
Two bilaterally symmetrical limiting plates 122 are arranged on two sides of the bottom of the control cavity 12, the limiting plates 122 are connected with the lower end of the tension rod 35 in an abutting contact manner, so that the tension rod 35 is limited, and the phenomenon that the rotation angle of the tension rod is too large to lose the locking effect is prevented; two gag lever post 123 of bilateral symmetry are equipped with to control 12 rear end inner wall both sides, and gag lever post 123 is connected with poker rod 31 middle part butt contact, plays limiting displacement to poker rod 31, prevents that it can be too big because tension spring 32's effect turned angle at the rotation in-process, and then does not control well.
A first driving rod 41 is fixedly connected to the end face of the right side of the first driving block 4, and the driving rod 41 is connected between the first driving channel 11 and the control cavity 12 in a sliding fit manner; a second driving rod 51 is fixedly connected to the right end face of the second driving block 5, and the first driving rod 51 is connected between the second driving channel 16 and the control cavity 12 in a sliding fit manner; the right ends of the first driving rod 41 and the second driving rod 51 are respectively provided with a rack 42, the racks 42 are respectively connected to the upper side and the lower side of the gear 34 in a meshing manner, the first driving block 4 and the second driving block 5 are driven to slide in a reciprocating manner through the first driving rod 41 and the second driving rod 51 by utilizing the reciprocating rotation of the gear 34, the reciprocating flow of the conductive fluid 2 in the first driving channel 11 and the second driving channel 16 is further realized, the contact and the non-contact of the conductive fluid 2 and the second conductive joint 15 are further realized, and the on-off of the switch is further realized.
The conductive fluid 2 is a conductive liquid metal, and the circuit is connected through the conductive property of the liquid metal, and the damage of the arc to the switch is reduced by using the characteristic that the second conductive joint 15 is damaged slightly when the arc occurs in the liquid metal, so that the service life of the switch can be prolonged.
The first driving block (4) and the second driving block (5) are both made of insulating materials, so that current is prevented from leaking, and the safety of the switch is improved.
When the switch is in the off state, the second driving block 5 is positioned between the first conductive connector 14 and the second conductive connector 15, the conductive fluid 2 is not contacted with the second conductive connector 15, the first driving block 4 is positioned at the right side of the second driving block 5, and the poke rod 31 inclines rightwards; when the driving device is in a conducting state, the second driving block 5 is located on the right side of the second conductive connector 15, the conductive fluid 2 is in contact with the second conductive connector 15, the first driving block 4 is located on the left side of the second driving block 5, and the poke rod 31 inclines to the left.
The working principle is as follows: when the switch is required to be disconnected, the poke rod 31 is pulled to incline rightwards, the tension rod 35 and the poke rod 31 are respectively abutted to the limiting plate 122 and the limiting rod 123 on the right side under the action of the tension spring 32, then the poke rod 31 drives the rotating shaft 33 to rotate, and further drives the gear 34 to rotate clockwise, the gear 34 respectively drives the first driving rod 41 to slide rightwards through the rack 42, the second driving rod 51 to slide leftwards, further drives the first driving block 4 to slide rightwards along the first driving channel 11, and drives the second driving block 5 to slide leftwards along the second driving channel 16, and further drives the conductive fluid 2 to flow towards the first driving channel 11, so that the conductive fluid 2 is separated from the second conductive connector 15, and the switch is disconnected; when the conductive fluid is required to be conducted, the poke rod 31 is pulled to incline to the left, the pull rod 35 and the poke rod 31 are respectively abutted to the limiting plate 122 and the limiting rod 123 on the left side under the action of the tension spring 32, and then the poke rod 31 drives the rotating shaft 33 to rotate, so as to drive the gear 34 to rotate anticlockwise, the gear 34 respectively drives the first driving rod 41 to slide leftwards through the rack 42, so as to drive the second driving rod 51 to slide rightwards, so as to drive the first driving block 4 to slide leftwards along the first driving channel 11, so as to drive the second driving block 5 to slide rightwards along the second driving channel 16, so as to drive the conductive fluid 2 to flow towards the second driving channel 16, so as to realize the contact of the conductive fluid 2 and the second conductive joint 15, thereby realizing the.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the invention, the filling pattern is only used for distinguishing the layers and is not limited at all.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A power switch capable of alleviating arc pull is characterized in that: the switch comprises a switch body (1), conductive fluid (2), a control mechanism (3), a first driving block (4) and a second driving block (5); a first driving channel (11) and a second driving channel (16) are arranged at the left end part of the switch body (1), the first driving channel (11) is positioned at the upper side of the second driving channel (16), and the first driving channel (11) is communicated with the left end of the second driving channel (16); the first driving block (4) is connected in the first driving channel (11) in a sliding fit mode, and the second driving block (5) is connected in the second driving channel (16) in a sliding fit mode; the conductive fluid (2) is located in the first drive channel (11) and the second drive channel (16), and the conductive fluid (2) is clamped between the first drive block (4) and the second drive block (5); a first conductive joint (14) and a second conductive joint (15) are arranged at the lower end of the switch body (1), the first conductive joint (14) and the second conductive joint (15) extend inwards into the second driving channel (16), the first conductive joint (14) is communicated with the conductive fluid (2), and the second conductive joint (15) is intermittently communicated with the conductive fluid (2); a liquid storage tank (17) is formed in the second conductive joint (15), and the liquid storage tank (17) is communicated with the second driving channel (16); the switch is characterized in that a control cavity (12) is arranged at the right end of the switch body (1), the control mechanism (3) is arranged in the control cavity (12), and the control mechanism (3) is connected with the first driving block (4) and the second driving block (5) respectively.
2. The power switch of claim 1, wherein the power switch further comprises: the control mechanism (3) comprises a poke rod (31), a rotating shaft (33), a tension spring (32), a gear (34) and a tension rod (35); a fixed support plate (121) is fixedly connected to the center of the bottom of the control cavity (12), the rotating shaft (33) is connected with the upper end of the fixed support plate (121) in a rotating fit manner, and the gear (34) is fixedly connected to the front end of the rotating shaft (33); a toggle groove (13) is formed in the inner wall of the top of the control cavity (12), the toggle rod (31) is movably connected into the toggle groove (13), the lower end of the toggle rod (31) is fixedly connected to the rear end of the rotating shaft (33), and the upper end of the tension rod (35) is connected with the rear end of the rotating shaft (33) in a rotating fit manner; one end of the tension spring (32) is fixedly connected with the middle part of the poke rod (31), and the other end of the tension spring (32) is fixedly connected with the lower end of the tension rod (35).
3. The power switch of claim 2, wherein the power switch further comprises: two bilaterally symmetrical limiting plates (122) are arranged on two sides of the bottom of the control cavity (12), and the limiting plates (122) are connected with the lower end of the tension rod (35) in an abutting contact manner; two bilaterally symmetrical limiting rods (123) are arranged on two sides of the inner wall of the rear end of the control cavity (12), and the limiting rods (123) are connected with the middle of the poke rod (31) in an abutting contact mode.
4. The power switch of claim 1, wherein the power switch further comprises: a first driving rod (41) is fixedly connected to the end face of the right side of the first driving block (4), and the driving rod (41) is connected between the first driving channel (11) and the control cavity (12) in a sliding fit manner; a second driving rod (51) is fixedly connected to the end face of the right side of the second driving block (5), and the first driving rod (51) is connected between the second driving channel (16) and the control cavity (12) in a sliding fit manner; the right ends of the first driving rod (41) and the second driving rod (51) are respectively provided with a rack (42), and the racks (42) are respectively meshed with the upper side and the lower side of the gear (34).
5. The power switch of claim 1, wherein the power switch further comprises: the conductive fluid (2) is a conductive liquid metal.
6. The power switch of claim 1, wherein the power switch further comprises: the first driving block (4) and the second driving block (5) are both made of an insulating material.
7. The power switch of claim 1, wherein the power switch further comprises: when the device is in an off state, the second driving block (5) is positioned between the first conductive connector (14) and the second conductive connector (15), the conductive fluid (2) is not in contact with the second conductive connector (15), the first driving block (4) is positioned on the right side of the second driving block (5), and the poke rod (31) inclines to the right; when the driving mechanism is in a conducting state, the second driving block (5) is located on the right side of the second conductive connector (15), the conductive fluid (2) is in contact with the second conductive connector (15), the first driving block (4) is located on the left side of the second driving block (5), and the poke rod (31) inclines to the left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011141528.2A CN112331513B (en) | 2020-10-22 | 2020-10-22 | Power switch capable of relieving arc strain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011141528.2A CN112331513B (en) | 2020-10-22 | 2020-10-22 | Power switch capable of relieving arc strain |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112331513A true CN112331513A (en) | 2021-02-05 |
| CN112331513B CN112331513B (en) | 2024-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011141528.2A Active CN112331513B (en) | 2020-10-22 | 2020-10-22 | Power switch capable of relieving arc strain |
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| Country | Link |
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| CN (1) | CN112331513B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121556A (en) * | 2022-01-27 | 2022-03-01 | 东莞市元则电器有限公司 | Self-locking liquid metal contact long-life relay and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU951447A1 (en) * | 1980-10-03 | 1982-08-15 | Куйбышевский политехнический институт им.В.В.Куйбышева | High-current liquid metal switch |
| JP2007299629A (en) * | 2006-04-28 | 2007-11-15 | Matsushita Electric Works Ltd | Contact switching device |
| CN101093762A (en) * | 2006-06-20 | 2007-12-26 | 陈明 | Liquid switch |
| CN105637607A (en) * | 2013-10-03 | 2016-06-01 | 普雷斯弗雷克斯股份公司 | Liquid filled bellows activated switch and voltage source made therefrom, timepieces and methods related thereto |
| CN112053882A (en) * | 2020-08-27 | 2020-12-08 | 杭州绿中游智能科技有限公司 | Power switch capable of preventing electric arc from being pulled |
-
2020
- 2020-10-22 CN CN202011141528.2A patent/CN112331513B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU951447A1 (en) * | 1980-10-03 | 1982-08-15 | Куйбышевский политехнический институт им.В.В.Куйбышева | High-current liquid metal switch |
| JP2007299629A (en) * | 2006-04-28 | 2007-11-15 | Matsushita Electric Works Ltd | Contact switching device |
| CN101093762A (en) * | 2006-06-20 | 2007-12-26 | 陈明 | Liquid switch |
| CN105637607A (en) * | 2013-10-03 | 2016-06-01 | 普雷斯弗雷克斯股份公司 | Liquid filled bellows activated switch and voltage source made therefrom, timepieces and methods related thereto |
| CN112053882A (en) * | 2020-08-27 | 2020-12-08 | 杭州绿中游智能科技有限公司 | Power switch capable of preventing electric arc from being pulled |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121556A (en) * | 2022-01-27 | 2022-03-01 | 东莞市元则电器有限公司 | Self-locking liquid metal contact long-life relay and use method thereof |
| CN114121556B (en) * | 2022-01-27 | 2022-04-19 | 东莞市元则电器有限公司 | Self-locking liquid metal contact long-life relay and use method thereof |
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| Publication number | Publication date |
|---|---|
| CN112331513B (en) | 2024-09-13 |
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