CN205159123U - Switch with power failure protection function - Google Patents
Switch with power failure protection function Download PDFInfo
- Publication number
- CN205159123U CN205159123U CN201520998283.3U CN201520998283U CN205159123U CN 205159123 U CN205159123 U CN 205159123U CN 201520998283 U CN201520998283 U CN 201520998283U CN 205159123 U CN205159123 U CN 205159123U
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- CN
- China
- Prior art keywords
- contact
- push rod
- switch
- moving contact
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 40
- 239000010703 silicon Substances 0.000 claims abstract description 40
- 238000009434 installation Methods 0.000 claims abstract description 13
- 239000012634 fragment Substances 0.000 claims description 37
- 230000005855 radiation Effects 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model discloses a switch with power failure protection function, which comprises a cover plate, a base, a first static contact, a first movable contact frame, a circuit board and a silicon controlled rectifier, wherein the first movable contact frame is welded at the power supply end of the circuit board, a movable contact is arranged on the first movable contact frame in a swinging way, one end of the movable contact is a contact end, the other end of the contact end is an installation end, the installation end of the movable contact is arranged on the first movable contact frame, a movable contact spring is arranged between the movable contact and the base, the switch also comprises a push rod, a reset spring is arranged between the lower end of the push rod and the base, a support part is also arranged on the push rod, the support part upwards supports the movable contact to separate the contact end of the movable contact from the static contact when in a closed state, two signal acquisition spring plates are welded at a signal acquisition point of the circuit, the switch solves the safety problem brought to an operator when power is cut off and supplied again suddenly.
Description
Technical field
The utility model relates to electronic switch field, refers to a kind of switch with power-failure protecting function especially.
Background technology
Existing switch on electric drill or angle grinding machine does not comprise power-failure protecting function, comprise the cover plate interfixed, base and push rod, base is provided with binding post, base is fixed with the first fixed contact and the first action contact frame, wiring board is provided with between cover plate and base, wiring board is welded with controllable silicon, first action contact frame is welded in the feeder ear of wiring board, first fixed contact is provided with fixed contact, first action contact frame swings moving contact is installed, moving contact one end is the contact jaw other end is installation end, the installation end of moving contact is installed on the first action contact frame, the contact jaw of moving contact is provided with the moving contact being in and coordinating above fixed contact and with fixed contact, moving contact spring is provided with between moving contact and base, the elastic force of this moving contact spring forces the contact jaw beat down of moving contact, existing switch can produce following problem in use: 1) when reality uses, when a switch is on due to the unexpected power-off of external power source, and push rod is now still in down state, when powering, switch can continue to be communicated with again, safety problem can be brought like this to operator, 2) fin is connected on controllable silicon, charged during switch, in practical operation, there is potential safety hazard, 3) there is no extra shock resistance protection in ghyristor circuit, affect the reliability of switch.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of switch with power-failure protecting function; this switch has power-failure protecting function; when it is unexpected that power-off power again, switch is in off-state, efficiently solves switch when unexpected power-off is powered again and can continue to be communicated with the problem that there is potential safety hazard.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of switch with power-failure protecting function, comprise the cover plate and base that interfix, base is provided with binding post, described base is fixed with the first fixed contact and the first action contact frame, wiring board is provided with between described cover plate and base, described wiring board is welded with controllable silicon, described first action contact frame is welded in the feeder ear of wiring board, described first fixed contact is provided with fixed contact, described first action contact frame swings moving contact is installed, described moving contact one end is the contact jaw other end is installation end, the installation end of described moving contact is installed on the first action contact frame, the contact jaw of described moving contact is provided with the moving contact being in and coordinating above fixed contact and with fixed contact, moving contact spring is provided with between described moving contact and base, the elastic force of this moving contact spring forces the contact jaw beat down of moving contact, described switch also comprises push rod, described push rod shaft is to being slidably mounted between cover plate and base, wiring board and cover plate are run through and outside the exposed cover plate of head in the upper end of described push rod, back-moving spring is provided with between the lower end of described push rod and base, the position limiting structure of restriction push rod shaft to slide displacement is provided with between push rod and cover plate, described push rod is also provided with the support portion be positioned at below moving contact, time in off position, this support portion upwards supports moving contact the contact jaw of moving contact is separated with fixed contact, the signal acquisition point of described wiring board is welded with two signals collecting shell fragments, described push rod is fixed with the slip contact coordinated with the sliding contact of two signals collecting shell fragments, described slip contact and the conducting before or after moving contact contacts with fixed contact of signals collecting shell fragment.
As the preferred scheme of one; described wiring board is also provided with controllable silicon over-pressure safety device; described controllable silicon over-pressure safety device comprises and is welded in the second fixed contact on wiring board and the second action contact frame; described second fixed contact is connected with piezo-resistance; described second action contact frame is provided with the connection shell fragment with piezo-resistance Elastic Contact, described piezo-resistance and controllable silicon are arranged in parallel.
As the preferred scheme of one, described base is also provided with the radiator structure contacted with controllable silicon.
As the preferred scheme of one, described radiator structure comprises the heat dissipating housing of insulating radiation pad and metal, and described insulating radiation pad is fitted in controllable silicon side, and described heat dissipating housing insulating mounting is on base and contact with insulating radiation pad.
As the preferred scheme of one, described heat dissipating housing becomes U-shaped, and heat dissipating housing comprises interconnective upper fin, side fin and lower fin, and described insulating radiation pad contacts with side fin, described upper fin is provided with and dodges mouth.
As the preferred scheme of one, be provided with projection in the middle part of described push rod, described support portion is arranged on projection,
Described slip contact is installed on described projection.
After have employed technique scheme, the beneficial effects of the utility model are: due to a kind of with the switch of power-failure protecting function, comprise the cover plate and base that interfix, base is provided with binding post, base is fixed with the first fixed contact and the first action contact frame, wiring board is provided with between cover plate and base, wiring board is welded with controllable silicon, first action contact frame is welded in the feeder ear of wiring board, first fixed contact is provided with fixed contact, first action contact frame swings moving contact is installed, moving contact one end is the contact jaw other end is installation end, the installation end of moving contact is installed on the first action contact frame, the contact jaw of moving contact is provided with the moving contact being in and coordinating above fixed contact and with fixed contact, moving contact spring is provided with between moving contact and base, the elastic force of this moving contact spring forces the contact jaw beat down of moving contact, switch also comprises push rod, push rod shaft is to being slidably mounted between cover plate and base, wiring board and cover plate are run through and outside the exposed cover plate of head in the upper end of push rod, back-moving spring is provided with between the lower end of push rod and base, the position limiting structure of restriction push rod shaft to slide displacement is provided with between push rod and cover plate, push rod is also provided with the support portion be positioned at below moving contact, time in off position, this support portion upwards supports moving contact the contact jaw of moving contact is separated with fixed contact, the signal acquisition point of wiring board is welded with two signals collecting shell fragments, push rod is fixed with the slip contact coordinated with the sliding contact of two signals collecting shell fragments, slip contact and the conducting before or after moving contact contacts with fixed contact of signals collecting shell fragment, the on off operating mode of this switch is subject to the impact of two factors, first, whether moving contact contacts with the first fixed contact, the second, whether slip contact contacts with signals collecting shell fragment, only has to meet moving contact simultaneously and become contact with the first fixed contact from not contacting, slip contact and signals collecting shell fragment from do not contact become contact time, switch just can conducting.In switch use procedure, if extraneous power-off suddenly, when but push rod does not also reset completely, unexpected incoming call, now can not meet above-mentioned two situations simultaneously, switch does not work, be in not electriferous state, only reset completely at push rod, when then pressing, switch conduction is just charged, thus achieve the power-failure protecting of switch, in addition, when switch normally works, this support portion moves downward, moving contact also moves downward under the effect of self gravitation, and under the effect of moving contact spring, make the contact jaw of moving contact contact with fixed contact, support portion is separated with moving contact, push rod and moving contact, first fixed contact does not directly contact, therefore the vibrations that when switch uses, extraneous factor causes are to moving contact, first fixed contact all can not impact, such moving contact, the contact stabilization of the first fixed contact is reliable.
Again due to wiring board being also provided with controllable silicon over-pressure safety device; described controllable silicon over-pressure safety device comprises and is welded in the second fixed contact on wiring board and the second action contact frame; described second fixed contact is connected with piezo-resistance; described second action contact frame is provided with the connection shell fragment with piezo-resistance Elastic Contact; described piezo-resistance and controllable silicon are arranged in parallel; when generation can puncture silicon controlled voltage, voltage directly through piezo-resistance, thus will play the effect of protection silicon controlled.
Again owing to base being also provided with the radiator structure contacted with controllable silicon, be conducive to silicon controlled heat radiation.
Again because radiator structure comprises the heat dissipating housing of insulating radiation pad and metal, described insulating radiation pad is fitted in controllable silicon side, heat dissipating housing insulating mounting is on base and contact with insulating radiation pad, fin does not all directly contact with band electrical accessory, this ensures that theres the safety problem of electricity consumption in switch use procedure.
Again because heat dissipating housing becomes U-shaped, heat dissipating housing comprises interconnective upper fin, side fin and lower fin, and described insulating radiation pad contacts with side fin, described upper fin is provided with and dodges mouth, and area of dissipation is large, is conducive to switch and realizes rapidly heat radiation.
Again owing to being provided with projection in the middle part of push rod, support portion is arranged on projection, and under projection is positioned at moving contact, described slip contact is installed on described projection, is conducive to the installation of push rod in this switch, slip contact.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural blast schematic diagram of the utility model embodiment;
The schematic diagram of push rod, the first fixed contact, moving contact when Fig. 2 is the utility model embodiment initial condition;
The schematic diagram of slip contact and signals collecting shell fragment when Fig. 3 is the utility model embodiment initial condition;
Fig. 4 is the right view of contact and signals collecting shell fragment of sliding in Fig. 3;
The schematic diagram of push rod, the first fixed contact, moving contact when Fig. 5 is the utility model embodiment intermediateness;
The schematic diagram of slip contact and signals collecting shell fragment when Fig. 6 is the utility model embodiment intermediateness;
The schematic diagram of push rod, the first fixed contact, moving contact when Fig. 7 is the utility model embodiment on-state;
The schematic diagram of slip contact and signals collecting shell fragment when Fig. 8 is the utility model embodiment on-state;
Fig. 9 is the right view of contact and signals collecting shell fragment of sliding in Fig. 8;
Figure 10 is the schematic diagram of the utility model embodiment signal collection;
Figure 11 is the mounting structure schematic diagram of piezo-resistance in the utility model embodiment;
In accompanying drawing: 1. sealing ring; 2. sealing plate; 3. cover plate; 4. wiring board; 5. push rod; 6. back-moving spring; 7. slip contact; 8. the second fixed contact; 9. the second action contact frame; 10. signals collecting shell fragment; 11. connect shell fragment; 12. fixed contacts; 13. first fixed contacts; 14. first action contact frames; 15. piezo-resistances; 16. moving contacts; 17. moving contact springs; 18. moving contacts; 19. bases; 20. controllable silicons; 21. cooling pads; 22. heat dissipating housings; Fin on 221.; 222. side fin; 223. times fin; 23. binding posts; 24. screws.
Embodiment
Below by specific embodiment, a kind of switch with power-failure protecting function described in the utility model is described in further detail.
As shown in figs. 1-11, a kind of switch with power-failure protecting function, comprise the cover plate 3 and base 19 that interfix, base 19 is provided with binding post 23, described base 19 is fixed with the first fixed contact 13 and the first action contact frame 14, wiring board 4 is provided with between described cover plate 3 and base 19, described wiring board 4 is welded with controllable silicon 20, described first action contact frame 14 is welded in the feeder ear of wiring board 4, described first fixed contact 13 is provided with fixed contact 12, described first action contact frame 14 swings moving contact 18 is installed, described moving contact 18 one end is the contact jaw other end is installation end, the installation end of described moving contact 18 is installed on the first action contact frame 14, the contact jaw of described moving contact 18 is provided with the moving contact 16 being in and coordinating above fixed contact 12 and with fixed contact 12, moving contact spring 17 is provided with between described moving contact 18 and base 19, the elastic force of this moving contact spring 17 forces the contact jaw beat down of moving contact 18, described switch also comprises push rod 5, described push rod 5 slides axially and is installed between cover plate 3 and base 19, wiring board 4 and cover plate 3 are run through and outside the exposed cover plate 3 of head in the upper end of described push rod 5, back-moving spring 6 is provided with between the lower end of described push rod 5 and base 19, be provided with restriction push rod 5 between push rod 5 and cover plate 3 to slide axially the position limiting structure of displacement, described push rod 5 is also provided with the support portion be positioned at below moving contact 18, time in off position, this support portion upwards supports moving contact 18 contact jaw of moving contact 18 is separated with fixed contact, the signal acquisition point of described wiring board 4 is welded with two signals collecting shell fragments 10, described push rod 5 is fixed with the slip contact 7 coordinated with the sliding contact of two signals collecting shell fragments 10, described slip contact 7 and signals collecting shell fragment 10 conducting before or after moving contact 16 contacts with fixed contact 12.
Wherein, the conducting before moving contact 16 contacts with fixed contact 12 of slip contact 7 and signals collecting shell fragment 10 refers to: slided before this in the process that push rod 5 presses down contact 7 and signals collecting shell fragment 10 conducting, and push rod 5 continues to press down late contact 16 and just contacts fixed contact 12; The conducting after moving contact 16 contacts with fixed contact 12 of slip contact 7 and signals collecting shell fragment 10 refers to: in the process that push rod 5 presses down, moving contact 16 contacts fixed contact 12 before this, and push rod 5 continues to press down rear slip contact 7 and signals collecting shell fragment 10 just conducting.
In the present embodiment; described wiring board 4 is also provided with controllable silicon 20 over-pressure safety device; described controllable silicon 20 over-pressure safety device comprises the second fixed contact 8 and the second action contact frame 9 be welded on wiring board 4; described second fixed contact 8 is connected with piezo-resistance 15; described second action contact frame 9 is provided with the connection shell fragment 11 with piezo-resistance 15 Elastic Contact; described piezo-resistance 15 is arranged in parallel with controllable silicon 20; the G pin of concrete controllable silicon 20 is connected with wiring board; second fixed contact 8 is connected with the T pin of controllable silicon 20, and the second action contact frame 9 is connected with the A pin of controllable silicon 20.
Described base 19 is also provided with the radiator structure contacted with controllable silicon 20, described radiator structure comprises the heat dissipating housing 22 of insulating radiation pad 21 and metal, described insulating radiation pad 21 is fitted in controllable silicon 20 side, described heat dissipating housing 22 insulating mounting is on base 19 and contact with insulating radiation pad 21, described heat dissipating housing 22 one-tenth is U-shaped, heat dissipating housing 22 comprises interconnective upper fin 221, side fin 222 and lower fin 223, described insulating radiation pad 21 contacts with side fin 222, described upper fin 221 is provided with and dodges mouth, projection is provided with in the middle part of described push rod 5, described support portion is arranged on projection, described projection is positioned at below moving contact 18, described slip contact 7 is installed on described projection, the top of described cover plate 3 is provided with sealing ring 1, sealing plate 2, switch fully can be sealed, be conducive to the dust-proof of switch internal, screw 24 coordinates wiring with binding post 23.
For the setting of signal 1 and signal 0 in the present embodiment, can adjust according to own situation, reset.
As in Figure 2-4, when switch does not use, moving contact 16 on moving contact 18 does not contact with the fixed contact 12 on the first fixed contact 13, slip contact 7 does not contact with signals collecting shell fragment 10 simultaneously, the bleeding point of wiring board 4 is off-state, produce the signal of 1, in the normal use procedure of switch, wiring board 4 experiences from off-state to conducting state, switch presses down push rod 5 when using, at Fig. 5, during position shown in Fig. 6, moving contact 16 on moving contact 18 and the fixed contact 12 on the first fixed contact 13 are connected, now slip contact 7 does not contact with signals collecting shell fragment 10, but the bleeding point of wiring board 4 is still in off-state, produce the signal of 1, continue to press down push rod 5, at Fig. 7, Fig. 8, during position shown in Fig. 9, moving contact 16 on moving contact 18 and the fixed contact 12 on the first fixed contact 13 are connected, now slip contact 7 contacts with signals collecting shell fragment 10, the bleeding point of wiring board 4 is on-state, produce the signal of 0, namely controllable silicon 20 collects the signal of 1 and 0 successively, now loop is charged.
Be slip contact 7 and the situation of signals collecting shell fragment 10 conducting after moving contact 16 contacts with fixed contact 12 shown in accompanying drawing 5-9, certainly can also slide contact 7 and signals collecting shell fragment 10 conducting before moving contact 16 contacts with fixed contact 12.
The on off operating mode of this switch is subject to the impact of two factors, and the first, whether moving contact 16 contacts with fixed contact 12; The second, whether slip contact 7 contacts with signals collecting shell fragment 10, only has to meet moving contact 16 simultaneously and become contact with fixed contact 12 from not contacting, slip contact 7 and signals collecting shell fragment 10 from do not contact become contact time, switch just can be connected.
If sent a telegram here suddenly after extraneous power-off; but when push rod 5 does not also reset completely, controllable silicon 20 can not collect the signal of 1 and 0 successively, and now switch does not work; be in not electriferous state; unless when push rod 5 resets completely, again continued to press down push rod 5, when repeating operation above; controllable silicon 20 collects the signal of 1 and 0 successively; switch just can be connected, and is again in electriferous state, so just achieves the protection of switch when having a power failure suddenly to operator.
During switch; when generation can puncture the voltage of controllable silicon 20; because described piezo-resistance 15 is arranged in parallel with controllable silicon 20; voltage is by the second fixed contact 8, second action contact frame 9, connection shell fragment 11; directly through piezo-resistance 15; voltage without controllable silicon 20, thus plays the effect of protection controllable silicon 20.
In addition, the contact jaw of described moving contact 18 is provided with the moving contact 16 being in and coordinating above fixed contact 12 and with fixed contact 12, moving contact spring 17 is provided with between described moving contact 18 and base 19, this moving contact spring 17 both also can pull contact 18 extension spring for being used for for being used for pressing contact 18 contact 7 that slides, the elastic force of this moving contact spring 17 forces the upper and lower beat of the contact jaw of moving contact 18, during switch closed condition, this support portion upwards supports moving contact 18 contact jaw of moving contact 18 is separated with fixed contact, when switch normally works, when switch normally works, this support portion moves downward, moving contact 18 also moves downward under the effect of self gravitation, moving contact spring 17 is in extended configuration, the contact jaw of moving contact 18 contacts with fixed contact, support portion is separated with moving contact 18, push rod 5 and moving contact 18, first fixed contact 13 does not directly contact, therefore the vibrations that extraneous factor causes in the use procedure of switch are to moving contact 18, first fixed contact 13 all can not impact, this ensure that moving contact 18, the contact stabilization of the first fixed contact 13 is reliable.
The switch of this band power-failure protecting function can external capacitor, and the effect of electric capacity is EMC filtering, coordinates complete machine to use.
Claims (6)
1. the switch with power-failure protecting function, comprise the cover plate and base that interfix, base is provided with binding post, described base is fixed with the first fixed contact and the first action contact frame, wiring board is provided with between described cover plate and base, described wiring board is welded with controllable silicon, described first action contact frame is welded in the feeder ear of wiring board, described first fixed contact is provided with fixed contact, described first action contact frame swings moving contact is installed, described moving contact one end is the contact jaw other end is installation end, the installation end of described moving contact is installed on the first action contact frame, the contact jaw of described moving contact is provided with the moving contact being in and coordinating above fixed contact and with fixed contact, moving contact spring is provided with between described moving contact and base, the elastic force of this moving contact spring forces the contact jaw beat down of moving contact, it is characterized in that: described switch also comprises push rod, described push rod shaft is to being slidably mounted between cover plate and base, wiring board and cover plate are run through and outside the exposed cover plate of head in the upper end of described push rod, back-moving spring is provided with between the lower end of described push rod and base, the position limiting structure of restriction push rod shaft to slide displacement is provided with between push rod and cover plate, described push rod is also provided with the support portion be positioned at below moving contact, time in off position, this support portion upwards supports moving contact the contact jaw of moving contact is separated with fixed contact, the signal acquisition point of described wiring board is welded with two signals collecting shell fragments, described push rod is fixed with the slip contact coordinated with the sliding contact of two signals collecting shell fragments, described slip contact and the conducting before or after moving contact contacts with fixed contact of signals collecting shell fragment.
2. a kind of switch with power-failure protecting function as claimed in claim 1; it is characterized in that: described wiring board is also provided with controllable silicon over-pressure safety device; described controllable silicon over-pressure safety device comprises and is welded in the second fixed contact on wiring board and the second action contact frame; described second fixed contact is connected with piezo-resistance; described second action contact frame is provided with the connection shell fragment with piezo-resistance Elastic Contact, described piezo-resistance and controllable silicon are arranged in parallel.
3. a kind of switch with power-failure protecting function as claimed in claim 2, is characterized in that: described base is also provided with the radiator structure contacted with controllable silicon.
4. a kind of switch with power-failure protecting function as claimed in claim 3; it is characterized in that: described radiator structure comprises the heat dissipating housing of insulating radiation pad and metal; described insulating radiation pad is fitted in controllable silicon side, and described heat dissipating housing insulating mounting is on base and contact with insulating radiation pad.
5. a kind of switch with power-failure protecting function as claimed in claim 4; it is characterized in that: described heat dissipating housing becomes U-shaped; heat dissipating housing comprises interconnective upper fin, side fin and lower fin, and described insulating radiation pad contacts with side fin, described upper fin is provided with and dodges mouth.
6. a kind of switch with power-failure protecting function as claimed in claim 5, it is characterized in that: be provided with projection in the middle part of described push rod, described support portion is arranged on projection, and described slip contact is installed on described projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998283.3U CN205159123U (en) | 2015-12-04 | 2015-12-04 | Switch with power failure protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998283.3U CN205159123U (en) | 2015-12-04 | 2015-12-04 | Switch with power failure protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159123U true CN205159123U (en) | 2016-04-13 |
Family
ID=55694788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520998283.3U Active CN205159123U (en) | 2015-12-04 | 2015-12-04 | Switch with power failure protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159123U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390304A (en) * | 2015-12-04 | 2016-03-09 | 张家港华捷电子有限公司 | Switch with power failure protection function |
| CN108074771A (en) * | 2018-01-11 | 2018-05-25 | 上海良信电器股份有限公司 | A kind of moving contact component of rotary separation switch |
| CN111769002A (en) * | 2020-07-03 | 2020-10-13 | 贵州振华华联电子有限公司 | Combined switch and operation method |
-
2015
- 2015-12-04 CN CN201520998283.3U patent/CN205159123U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390304A (en) * | 2015-12-04 | 2016-03-09 | 张家港华捷电子有限公司 | Switch with power failure protection function |
| CN108074771A (en) * | 2018-01-11 | 2018-05-25 | 上海良信电器股份有限公司 | A kind of moving contact component of rotary separation switch |
| CN111769002A (en) * | 2020-07-03 | 2020-10-13 | 贵州振华华联电子有限公司 | Combined switch and operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |