CN104952649B - Microswitch - Google Patents
Microswitch Download PDFInfo
- Publication number
- CN104952649B CN104952649B CN201510357071.1A CN201510357071A CN104952649B CN 104952649 B CN104952649 B CN 104952649B CN 201510357071 A CN201510357071 A CN 201510357071A CN 104952649 B CN104952649 B CN 104952649B
- Authority
- CN
- China
- Prior art keywords
- movable contact
- pin
- connecting rod
- contact flat
- microswitch
- 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.)
- Active
Links
- 230000008602 contraction Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000012999 compression bending Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
The invention relates to a microswitch which is triggered under pressure. The microswitch comprises a casing, a touch switch and a touch press block, wherein the touch press block is connected with the touch switch; the touch switch comprises a first pin, a second pin, a movable contact and a connecting rod; upper parts of the first pin and the second pin are located in the casing, and lower parts extend out the lower side of the casing; a transverse bent part is arranged at the upper end of the second pin; the movable contact is transversely arranged and located between the upper parts of the first pin and the second pin; a fixed end of the movable contact is clamped at the upper part of the first pin, a free end of the movable contact is arranged below the transverse bent part, and a bulging bent shrinkage section is arranged on the movable contact; the outer end of the connecting rod is hinged to the touch press block, the middle of the connecting rod is hinged in the casing, and the inner end of the connecting rod extends below the movable contact and is connected with the movable contact; the middle hinged position of the connecting rod is higher than the movable contact. The microswitch is novel and reasonable in structure, sensitive to trigger, good in stability and higher in safety.
Description
Technical field
The invention belongs to sensor field, more particularly to a kind of microswitch for bestowing pressure and trigger switch.
Background technology
Hot-water bottle common in the market is all divided into base and heating kettle body, and heating kettle body is put in base, just uses
Microswitch, the microswitch is made up of switch case, the touch switch in switch case and shake-up briquetting, is passed through
Shake-up briquetting is touched, so as to open the touch switch on the inside of microswitch, heating just starts.Certainly, this microswitch is at it
Also commonly use in his field.
At present, there is following deficiency by the microswitch bestowed less pressure and trigger in prior art：
When the first, driving the part of microswitch more, higher build-up tolerance is needed between each part in assembling, caused
Assembling difficulty and less stable；
2nd, existing microswitch not only lacks overtemperature protection, and the safety of itself is not high, and internal structure is complicated, cloth
Office is excessively compact, even if arranging overheating protection circuit, also results in its overall structure too complex, high cost.
3rd, additional overheating protection circuit generally utilizes electric fuse, and primary current is excessive just to fuse, and causes once to destroy just
Keep in repair, service life is short.
4th, existing microswitch typically has spring to realize switch in the adnexa of trigger member, and spring is with pressure wave
Linear elongation is compressed, not only can unstable in vibration, and is also easy to fatigue and changes, therefore stability is poor, appearance
Easily there is situations such as dynamic false touch or loose contact, using effect is poor.
Therefore existing microswitch needs to improve.
The content of the invention
For the defect and deficiency of prior art, the technical problem to be solved of the present invention is that a kind of structure of offer is new
Grain husk and reasonable, the sensitive, good stability of triggering, and the higher microswitch of safety.
To realize solving above-mentioned technical problem to be solved, the present invention is employed the following technical solutions：
A kind of microswitch, including housing, the touch switch in housing and shake-up briquetting；The shake-up briquetting
Hull outside is movably arranged on, and connects touch switch；The touch switch includes：First pin, the second pin, movable contact flat
And connecting rod；First pin and the second pin are longitudinally disposed, and its top is respectively positioned in housing, and housing lower section is stretched out in bottom；Second
Pin upper end is provided with the transverse fold portion for pointing to the first pin；Movable contact flat horizontally set and positioned at the second of the first pin top
Between pin top；The fixing end of movable contact flat is connected to the top of the first pin, and the free end of movable contact flat is located at laterally folding
The lower section of turn of bilge, movable contact flat is provided with the bending contraction section of a protuberance；Connecting rod outer end is hinged on the shake-up briquetting, connecting rod
Middle part is hinged in the housing, and connecting rod the inner stretches into movable contact flat lower section and connects movable contact flat；The connecting rod middle part is hinged
Horizontal level of the horizontal level at place higher than the movable contact flat.
Preferably, described connecting rod the inner is provided with crotch；The movable contact flat is provided with and corresponding links hole；Crotch is hooked
It is described link it is in hole and spacing up and down to the movable contact flat free end.
Preferably, the first pin top is provided with the movable notch for being available for connecting rod to pass through；The movable contact flat is fixed
End is provided with the free gap for being available for connecting rod to pass through.
Preferably, the first pin top is the first furcation of Y-shaped structure, movable notch is located at the first bifurcated
In the middle of portion；The movable contact flat fixing end is provided with the second furcation of Y-shaped structure, and free gap is located in the second furcation
Between.
Preferably, the first pin top is provided with arc gap groove, the end face of the movable contact flat fixing end is curved, and blocks
Enter in the arc gap groove.
Preferably, the movable contact flat free end is provided with movable contact, transverse fold portion bottom surface is provided with dynamic with described
The stationary contact that contact coordinates, contact effect more preferably, prevents loose contact, more robust using more stable.
Preferably, the movable contact flat is temperature-sensitive memory metal sheet, movable contact flat is provided with one and swells up or down
Bending contraction section.Overload protection is carried out to microswitch, and overcurrent protection structure is simple, does not increase circuit newly, nor
The destructive protection by way of fusing so that microswitch service life is longer.
Preferably, the connecting rod is insulated connecting rod, safety is higher, it more difficult to new overload short circuit situation occur.
Compared with existing microswitch, the present invention has the advantages that：
First, the part of microswitch of the invention is less, and structure is novel and reasonable, coordinates in assembling and is easier,
Highly versatile, ensures stability again.
Secondly, the microswitch of the present invention make use of the lever principle of connecting rod in trigger member, abandon using spring so that
Open and closed in trigger switch are more apparent from, the mistake no longer brought with spring fatigue, vibration and poor fit
Situations such as shake-up or loose contact, therefore, the microswitch structure of the present invention is more stable, and service life is longer.
Finally, in above-mentioned further preferred scheme, movable contact flat utilizes temperature-sensitive memory metal to microswitch of the invention,
Overload overtemperature protection is not only realized on the basis of structure is not increased, the safety of microswitch itself is improve, and,
Even if using occurring overload after temperature-sensitive memory metal, its overload protection is nor destructive protection, the microswitch can after cooling
To be continuing with.
Description of the drawings
Fig. 1：The cross-sectional view of the embodiment of the present invention.
Fig. 2：The dimensional structure diagram of movable contact flat in the embodiment of the present invention.
Fig. 3：The dimensional structure diagram of the first pin in the embodiment of the present invention.
In figure：Housing 1；Hinged pillar 11；First pin 2；Arc gap groove 21；Movable notch 22；Bifurcated plate 23；Second inserts
Foot 3；Transverse fold portion 31；Stationary contact 32；Movable contact flat 4；Bending contraction section 41；Movable contact 42；Link hole 43；Free gap
44；Bifurcated terminals 45；Touch briquetting 5；Connecting rod 7；Crotch 71；Upper lid 8.
Specific embodiment
Do further citing description to the present invention below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to this.
Embodiment：
A kind of microswitch as Figure 1-3, is made up of housing 1, upper lid 8, touch switch and shake-up briquetting 5.Touch
Dynamic pressure block 5 is movably arranged on the outside of housing 1, and connects touch switch；Touching briquetting 5 can be up and down with pressure effect, so as to
Touch switch is driven to complete the action of on an off.Above-mentioned touch switch main body is arranged in housing 1, and upper lid 8 is covered on housing will
Touch switch is enclosed in case inside, completes assembling.Wherein：
Touch switch includes the first pin 2, the second pin 3, movable contact flat 4 and connecting rod 7, the first pin 2 and the second pin 3
Longitudinally disposed, its top is respectively positioned in housing 1, and the lower section of housing 1 is stretched out in bottom.When switching off, the first pin 2 and second is inserted
Do not connect between foot 3, during switch closure, the first pin 2 and the second pin 3 are electrically connected by movable contact flat 4.Specifically, first
As shown in figure 3, the top of the first pin 2 is the first furcation of Y-shaped structure, the first furcation includes pair of right and left pair to pin 2
The bifurcated plate 23 of title, leaves the movable notch 22 for being available for connecting rod 7 to pass through, i.e. loose slot between left bifurcated plate 23 and right bifurcated plate 23
Mouth 22 is located in the middle of the first furcation.The upper end of second pin 3 is provided with the transverse fold portion 31 for pointing to the first pin 2.Above-mentioned activity
The horizontally set of contact 4 and between the top of the second pin 3 on the top of the first pin 2, the fixing end of movable contact flat 4 is connected to
The top of one pin 2, the free end of movable contact flat 4 is located at the lower section in transverse fold portion 31.Specifically, the fixing end of movable contact flat 4
The second furcation of Y-shaped structure is provided with, the second furcation also includes the symmetrical bifurcated terminals 45 of pair of right and left, left and right divergent ends
Also leave the free gap 44 for being available for connecting rod 7 to pass through, i.e. free gap 44 between son 45 to be located in the middle of the second furcation.
The top of the first pin 2 is that arc gap groove 21 is equipped with left and right bifurcated plate 23, and the fixing end of movable contact flat 4 is left and right
The end face of bifurcated terminals 45 is curved, and left and right bifurcated terminals 45 correspond to respectively the arc gap groove 21 for snapping in left and right bifurcated plate 23
It is interior.The free end of movable contact flat 4 is provided with movable contact 42, and the bottom surface of transverse fold portion 31 is provided with the stationary contact coordinated with movable contact 42
32。
The outer end of above-mentioned connecting rod 7 is hinged on shake-up briquetting 5, and the inner side of housing 1 is provided with hinged pillar 11, and the middle part of connecting rod 7 is hinged
Hinged pillar 11 in housing 1, the inner of connecting rod 7 is provided with crotch 71, and movable contact flat 4 is provided with and corresponding links hole 43.Connecting rod 7
Stretch into the lower section of movable contact flat 4 and connect through crotch 71 and hook the mode linked in hole 43 and connect movable contact flat 4 in the inner.Crotch 71
Hook and link behind hole 43, the activity of crotch 71 can be spacing up and down to the free end of movable contact flat 4, directly drive movable contact flat 4 freely
The upper-lower position at end.And the horizontal level of the middle part hinged place of connecting rod 7 is hinged higher than the horizontal level of movable contact flat 4 in the middle part of connecting rod 7
Used as fulcrum, using lever principle, when pushing shake-up briquetting 5, the connection stationary contact 32 of movable contact 42, switch is closed at place.
Above-mentioned movable contact flat 4 is temperature-sensitive memory metal sheet, and movable contact flat 4 is provided with the bending contraction section 41 of a protuberance, should
With certain elasticity when bending contraction section 41 is flat, it is not delivered under the situation of pressure briquetting 5 is touched, activity can be ordered about
The movable contact 42 of contact 4 departs from downwards stationary contact 32.The material of movable contact flat 4 is temperature-sensitive memory metal, and also with bending
Contraction section 41, when the current overload at the first pin 2 and the two ends of the second pin 3, movable contact flat 4 is overheated soon, now activity
Contact 4 deforms, especially the rapid desufflation of bending contraction section 41, and now, the first pin 2 and the fixing end of movable contact flat 4 be not in clamping
Contact, or even also position does not correspond between the movable contact of movable contact flat 4 and the stationary contact 32 of the second grafting, cuts off being electrically connected for the two
It is logical.
When using, when the housing 1 of microswitch is fixedly connected with sensor, the trigger unit on sensor is to touching briquetting
5 apply downward pressure, touch briquetting 5 downwards, and by the leverage of connecting rod 7, the free end for making movable contact flat 4 raises up, little
Width compression bending contraction section 41, while the movable contact 42 and stationary contact 32 of movable contact flat 4 are contacted, and then the first of connection two ends inserts
The pin 3 of foot 2 and second, microswitch is with regard to output signal；
Movable contact flat 4 under normality extends to original state by bending contraction section 41, orders about connecting rod 7 so that shake-up briquetting 5 times
Position keeps movable contact flat 4 laterally to balance, and does not contact between movable contact flat 4 and transverse fold portion 31, such structure setting, purpose
It is so that microswitch structure simply, is quick on the draw, uses and stablize.When the first pin 2 and the voltage mistake at the two ends of the second pin 3
Movable contact flat 4 produces temperature rise during load, and the bending contraction section 41 of movable contact flat 4 that memory metal makes shrinks, and is integrally turned under
Song deformation, so as to disengage it from the disconnecting circuit of transverse fold portion 31, so as to realize overcurrent protection of the microswitch to sensor.
Above-mentioned connecting rod 7 is insulated connecting rod, in order to allow microswitch more safety and stability, prevents short circuit or overload from protecting
Shield failure.
Embodiments above is illustrated by way of example, and it can not be used as limitation of the present invention.Not
In the case of deviating from the scope of the invention, its principal character can be used for various embodiments.
Claims (8)
1. a kind of microswitch, including housing (1), the touch switch in housing (1) and shake-up briquetting (5)；It is described
Touch briquetting (5) and be movably arranged on housing (1) outside, and connect touch switch；It is characterized in that：The touch switch includes：
First pin (2), the second pin (3), movable contact flat (4) and connecting rod (7)；
First pin (2) and the second pin (3) are longitudinally disposed, and its top is respectively positioned in housing (1), and housing (1) is stretched out in bottom
Lower section；
Second pin (3) upper end is provided with the transverse fold portion (31) for pointing to the first pin (2)；
Movable contact flat (4) horizontally set and between the first pin (2) top and the second pin (3) top；
The fixing end of movable contact flat (4) is connected to the top of the first pin (2), and the free end of movable contact flat (4) is located at laterally folding
The lower section of turn of bilge (31), movable contact flat (4) is provided with the bending contraction section (41) of a protuberance；
Connecting rod (7) outer end is hinged on shake-up briquetting (5), and connecting rod (7) middle part is hinged in the housing (1), connecting rod (7)
Stretch into movable contact flat (4) lower section and connect movable contact flat (4) in the inner；
Horizontal level of the horizontal level of connecting rod (7) middle part hinged place higher than the movable contact flat (4).
2. a kind of microswitch according to claim 1, it is characterised in that：Described connecting rod (7) the inner is provided with crotch (71)；
The movable contact flat (4) is provided with and corresponding links hole (43)；Crotch (71) hooks described linking in hole (43) and to the work
Movable contact spring (4) free end is spacing up and down.
3. a kind of microswitch according to claim 1, it is characterised in that：First pin (2) top is provided with and is available for
The movable notch (22) that connecting rod (7) is passed through；Movable contact flat (4) fixing end is provided with the free gap for being available for connecting rod (7) to pass through
(44)。
4. a kind of microswitch according to claim 3, it is characterised in that：First pin (2) top is Y-shaped knot
First furcation of structure, movable notch (22) is in the middle of the first furcation；Movable contact flat (4) fixing end is provided with Y-shaped
Second furcation of structure, free gap (44) are in the middle of the second furcation.
5. a kind of microswitch according to claim 1-4 any one, it is characterised in that：First pin (2) top sets
There is arc gap groove (21), the end face of movable contact flat (4) fixing end is curved, and snap in the arc gap groove (21).
6. a kind of microswitch according to claim 1-4 any one, it is characterised in that：The movable contact flat (4) is certainly
Movable contact (42) is provided with by end, transverse fold portion (31) bottom surface is provided with the stationary contact coordinated with the movable contact (42)
(32)。
7. a kind of microswitch according to claim 1-4 any one, it is characterised in that：The movable contact flat (4) is
Temperature-sensitive memory metal sheet.
8. a kind of microswitch according to claim 1-4 any one, it is characterised in that：The connecting rod (7) is insulation
Connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357071.1A CN104952649B (en) | 2015-06-22 | 2015-06-22 | Microswitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357071.1A CN104952649B (en) | 2015-06-22 | 2015-06-22 | Microswitch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104952649A CN104952649A (en) | 2015-09-30 |
| CN104952649B true CN104952649B (en) | 2017-05-17 |
Family
ID=54167232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510357071.1A Active CN104952649B (en) | 2015-06-22 | 2015-06-22 | Microswitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104952649B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6769419B2 (en) * | 2017-09-26 | 2020-10-14 | 豊田合成株式会社 | Backdoor open / close switch |
| CN117238084A (en) * | 2023-11-10 | 2023-12-15 | 黄金屋科技有限公司 | Book management device, method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4235981A1 (en) * | 1992-10-24 | 1994-04-28 | Marquardt Gmbh | Snap-action electromechanical switch - has lever actuator retained in recess and operating on a plunger to cause changeover of snap action contacts |
| CN201229863Y (en) * | 2008-03-07 | 2009-04-29 | 颜陶 | Microswitch having secondary action |
| CN204760256U (en) * | 2015-06-22 | 2015-11-11 | 朱正直 | Microswitch |
-
2015
- 2015-06-22 CN CN201510357071.1A patent/CN104952649B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4235981A1 (en) * | 1992-10-24 | 1994-04-28 | Marquardt Gmbh | Snap-action electromechanical switch - has lever actuator retained in recess and operating on a plunger to cause changeover of snap action contacts |
| CN201229863Y (en) * | 2008-03-07 | 2009-04-29 | 颜陶 | Microswitch having secondary action |
| CN204760256U (en) * | 2015-06-22 | 2015-11-11 | 朱正直 | Microswitch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104952649A (en) | 2015-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Jiahua Inventor before: Zhu Zhengzhi Inventor before: Yang Yongjian |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170301 Address after: 510665 Guangdong city of Guangzhou province Tianhe District Software Park Building No. 59 Middle East block, Grand Building Room 501 Applicant after: Li Jiahua Address before: Yuecheng town Yueqing city Zhejiang province 325600 Pan Jia Yang Wenzhou City, No. 13 Applicant before: Zhu Zhengzhi |
|
| CB03 | Change of inventor or designer information |
Inventor after: Li Qianwen Inventor before: Li Jiahua |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170410 Address after: 528322 Shunde District, Guangdong City, the flow of the river Yi Yi Industrial Zone Applicant after: GUANGDONG YU SHUN ELECTRICAL Co.,Ltd. Address before: 510665 Guangdong city of Guangzhou province Tianhe District Software Park Building No. 59 Middle East block, Grand Building Room 501 Applicant before: Li Jiahua |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 528300 No. 42 Zhongcheng Road, Xincheng Community, Leliu Street, Shunde District, Foshan City, Guangdong Province (Residence Declaration) Patentee after: GUANGDONG YU SHUN ELECTRICAL Co.,Ltd. Country or region after: China Address before: 528322 Leliu Jiangyi Industrial Zone, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG YU SHUN ELECTRICAL Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |