CN107610976A - A kind of hand reset liquid expansion temp limiter - Google Patents
A kind of hand reset liquid expansion temp limiter Download PDFInfo
- Publication number
- CN107610976A CN107610976A CN201711049726.4A CN201711049726A CN107610976A CN 107610976 A CN107610976 A CN 107610976A CN 201711049726 A CN201711049726 A CN 201711049726A CN 107610976 A CN107610976 A CN 107610976A
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- spring
- temperature
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- static
- knife
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
A kind of hand reset liquid expansion temp limiter, the stationary contact bridge in height two-stage sheet is provided between static contact bottom and insulation shell bottom, static contact is in the elastic suspension free state for leaving insulation shell bottom.The temperature limiter can realize hand-reset in temperature-sensitive temperature than limiting in the case that warm operating temperature reduces seldom, and it is suitable for limiting the home electrical heater that warm operating temperature is 60 DEG C~120 DEG C.
Description
Technical field
The present invention relates to temperature controller technical field, more particularly to a kind of hand reset liquid expansion temp limiter.
Background technology
Temperature limiter is widely used on the home electrical heaters such as electric warm-air machine, electric heater, electric oven, electric heating fryer, it
It is used in series with temperature controller, just in case temperature controller fails, it can cut off the electricity supply in time, realize overtemperature prote.Liquid expansion type limit temperature
The operation principle of device is：The liquid working substance expanded by heating being enclosed in temperature-sensitive bag, being delivered to bellows through capillary produces bellows
Displacement, microswitch is promoted to disconnect.
Chinese patent CN2582147Y《Hand reset liquid expansion temp limiter with leakage protection structure》Disclose
A kind of hand reset liquid expansion temp limiter with leakage protection structure, but following weak point be present in the temperature limiter：Limit
Warm device is because of overtemperature prote and after roof-cut resistence, and temperature-sensitive temperature can have dropped, and push rod has bounced back some, but due to movable contact spring
Inner sheet because by bow spring tension force effect produce slight curves deformation, if now pressing release link, though by moving contact with it is quiet
Contact, bow spring left side fulcrum are that the movable contact spring inner sheet edge of a knife is still below the right fulcrum O, the i.e. right edge of a knife of movable contact spring housing, bend spring
Fail to overturn, motion makes switch disjunction to moving contact upwards, therefore fail to complete hand-reset again after unclamping hand.Only work as temperature-sensitive
Temperature continues to reduce, and push rod bounces back more, and the left edge of a knife of movable contact spring inner sheet is that left fulcrum raises get Geng Gao, now presses release link
The left side fulcrum of bow spring can be made to be higher than the right fulcrum, bow spring could be overturn, now unclamp moving contact after hand still keep with it is quiet
Contact, so as to complete hand-reset.So, the application of this temperature limiter will be restricted, when limit temperature is dynamic
Make temperature it is less high in itself when, environment temperature will be dropped to below room temperature just can be with hand-reset, if room temperature cannot hand when higher
It is dynamic to reset.For example, limiting warm operating temperature as 90 DEG C, this temperature limiter needs environment temperature to reduce by 60 DEG C can just answer manually
Position, i.e., environment temperature be not higher than 30 DEG C when just can with hand-reset, and summer environment temperature be higher than 30 DEG C when then always can not
Hand-reset.Therefore this liquid expansion temp limiter may not apply to limit warm operating temperature relatively low（Such as 60 DEG C~120 DEG C temperature
Degree）Occasion.
The content of the invention
It is an object of the invention to provide a kind of hand reset liquid expansion temp limiter, and it can make temperature-sensitive temperature than limit temperature
Operating temperature reduce it is not many, i.e., under higher environment temperature can hand-reset, it is 60 DEG C that it, which is applied to limit warm operating temperature,
In~120 DEG C of home electrical heater.
Technical solution proposed by the invention is such：
A kind of hand reset liquid expansion temp limiter, including public terminal 1, insulation shell 2, movable contact spring 3, bow spring 4, static contact
5th, moving contact 6, release link 7, adjusting screw 8, bellows 9, push rod 10, capillary 11 and temperature-sensitive bag 12, movable contact spring 3 is by housing 301
Formed with the two parts of inner sheet 302, the original state of inner sheet 302 is bent upwards inclination angle, inner sheet 302 and housing 301 with certain
There are the relative left edge of a knife 3021 and the right edge of a knife 3011, bow spring 4 is arranged on the two relative left edges of a knife 3021 and the right edge of a knife 3011 simultaneously
In compressive state, the inner middle part of left tongue piece 3022, housing 301 that protrusion is provided with the middle part of the outer end of inner sheet 302 is provided with the right side of protrusion
Tongue piece 3012 is simultaneously respectively penetrated in the corresponding square hole of bow spring 4, and the hook portion 402 of bow spring 4 bottom is connected with the clasp joint of housing 301, institute
State bellows 9, capillary 11, temperature-sensitive bag 12 and form capsule stack, be filled with appropriate liquid working substance in the capsule stack, be additionally provided with quiet
Bridge 14 and static terminal 13 are touched, the stationary contact bridge 14 is made of elastic spring, in height two-stage sheet, the high piece of stationary contact bridge 14
1401 with the bottom of static contact 5 be riveted on the bottom of static contact 5, the corresponding bottom of housing 2 is provided with a vertical emptying aperture 201, quiet
Touch bridge 14 low 1402 is fixedly connected on insulation shell 2 by trip bolt 15, clamp nut 16 and static terminal 13, stationary contact
First 5 are in elastic suspension free state.
Outer back gauge B between the high piece 1401 of the stationary contact bridge 14 and low 1402 is 0.5~2mm.The stationary contact bridge
14 are made up of beryllium-bronze material.The insulation shell 2 is made of ceramic material.
Compared with prior art, the present invention has following remarkable result：
The present invention has additional is riveted on the high piece of stationary contact bridge in the flexible stationary contact bridge of height two-stage sheet, static contact bottom
On, low of stationary contact bridge is fixed by insulation shell and static terminal, but also is opened in housing bottom corresponding with static contact bottom
There is a vertical emptying aperture, static contact is in elastic suspension free state.When static contact is acted on by external force, stationary contact bridge
High piece can be bent downwardly deformation until touching housing bottom, overturn bow spring, dynamic and static contact disconnects, after external force is removed, then
Dynamic and static contact keeps contact, realizes hand-reset, and this is with regard to that can make this temperature limiter be reduced in temperature-sensitive temperature than limiting warm operating temperature
It is not many, i.e., hand-reset can be realized at higher ambient temperatures, and it is 60 DEG C~120 DEG C that it, which is applied to limit warm operating temperature,
Electric household appliance in.
Brief description of the drawings
Fig. 1 is a kind of general structure schematic diagram of hand reset liquid expansion temp limiter of one embodiment of the invention.
Fig. 2 is Fig. 1 A-A transverse direction cross section structure diagrams.
Fig. 3 is each part status schematic diagram in hand-reset of temperature limiter shown in Fig. 1.
Fig. 4 is the top view of structure between the movable contact spring shown in Fig. 3 and bow spring.
Label represents in figure：1st, public terminal, 2, insulation shell, 201, emptying aperture, 3, movable contact spring, 301, housing, 3011, right
The edge of a knife, 3021, the left edge of a knife, 4, bow spring, 402, hook portion, 5, static contact, 6, moving contact, 7, release link, 8, adjusting screw, 9,
Bellows, 10, push rod, 11, capillary, 12, temperature-sensitive bag, 13, static terminal, 14, stationary contact bridge, 1401, high piece, 1402, low, 15,
Trip bolt, 16, clamp nut.
Embodiment
The present invention is further elaborated by example below.
Referring to shown in Fig. 1 to Fig. 4, a kind of hand reset liquid expansion temp limiter, by public terminal 1, insulation shell 2,
Movable contact spring 3, bow spring 4, static contact 5, moving contact 6, release link 7, adjusting screw 8, bellows 9, push rod 10, capillary 11, temperature-sensitive bag
12nd, static terminal 13, stationary contact bridge 14 form.The movable contact spring 3 is made up of housing 301 and the two parts of inner sheet 302, and inner sheet 302 manufactures
Inclination angle is bent upwards with certain into original state, inner sheet 302 and housing 301 are respectively equipped with the relative left edge of a knife 3021 and the right side
The edge of a knife 3011, bow spring 4 are arranged on the two relative left edges of a knife 3021 and the right edge of a knife 3011 and are in compressive state, movable contact spring 3
Right tongue piece 3012 and difference that the inner middle part of the left tongue piece 3022 protruded, housing 301 is provided with protrusion are provided with the middle part of the outer end of inner sheet 302
Penetrate in the square hole of the bow correspondence position of spring 4, ensure that bow spring 4 will not fall off.The bow bottom of spring 4 is enough to hook dynamic touch provided with one fixed width
The hook portion 402 of piece housing 301, that is, the hook portion 402 for bending the bottom of spring 4 are connected with the clasp joint of housing 301, in bow spring 4 because of movable contact spring inner sheet
302 can drive the housing 301 of movable contact spring 3 to move upwards and depart from moving contact 6 and static contact 5 when moving and raising upwards.It is described
Bellows 9, capillary 11, temperature-sensitive bag 12 form capsule stack, and being filled with appropriate liquid working substance in the capsule stack makes push rod 10 exist
There is certain initial displacement under normal temperature, when reaching set limit temperature operating temperature displacement caused by push rod 10 make bow spring
4 upsets, dynamic and static contact 6,5 disconnect.Bellows does not produce displacement after being leaked due to working medium, and push rod 10 is in free state,
The inner sheet 302 of movable contact spring 3 is moved upwards, drive housing 301 to move upwards to make dynamic and static contact 6,5 disconnected by bending spring hook portion 402
Open.Thus, this temperature limiter has liquid working substance leak protection function.The stationary contact bridge 14 is made of elastic spring, in height
Two-stage sheet, high piece 1401 and the bottom of static contact 5 of stationary contact bridge 14 rivet, at the bottom of insulation shell 2 corresponding with the bottom of static contact 5
Portion is provided with a vertical emptying aperture 201, and low 1402 of stationary contact bridge 14 passes through trip bolt 15, clamp nut 16 and static terminal 13
It is fixedly connected on insulation shell 2, static contact 5 is in elastic suspension free state.When static contact 5 is acted on by external force, institute
Deformation can be bent downwardly until touching the bottom of insulation shell 2 by stating the high piece 1401 of stationary contact bridge 14, can after external force is removed
Restore to the original state.
The stationary contact bridge 14 is stamped to form using beryllium-bronze material, between the high piece 1401 of stationary contact bridge 14 and low 1402
Outer back gauge B=0.5~2mm.By its appropriately designed shape and size, the high piece 1401 can be done in dynamic and static contact 6,5 just
Shape is often basically unchanged during contact, only human hand is firmly pressed and could deformed, and and can is enough returned to original state after external force is removed.It is described
Insulation shell 2 is made of ceramic material.
The course of work of this hand reset liquid expansion temp limiter is as follows：When temperature limiter is because of the temperature-sensitive temperature of temperature-sensitive bag 12
During more than overtemperature prote working value, push rod 10, which moves downward, makes bow spring 4 overturn and roof-cut resistence.When the temperature sensor of temperature-sensitive bag 12
Have dropped, push rod 10 has bounced back some, but due to the inner sheet 302 of movable contact spring 3 by bow the tension force effect of spring 4 and generate small
Flexural deformation, when pressing release link 7, even if being contacted by moving contact 6 with static contact 5, the bow left side fulcrum of spring 4 is in movable contact spring
The left edge of a knife 3021 of piece is still below the right right edge of a knife 3011 of fulcrum i.e. movable contact spring housing, therefore bends spring 4 and fail to overturn.Now continue to increase
Strength presses release link 7, and thrust is delivered to static contact 5 by moving contact 6, the high piece 1401 of stationary contact bridge 14 is bent downwardly deformation,
The right edge of a knife 3011 of the housing 301 of movable contact spring 3 decreases, and is higher than the i.e. left edge of a knife 3021 of movable contact spring inner sheet of the left side fulcrum of bow spring 4
The right fulcrum is the right edge of a knife 3011 of movable contact spring housing, and bow spring 4 is overturn, and dynamic and static contact 6,5 contacts, and the pressing for removing release link 7 pushes away
After power, dynamic/static contact 6,5 still keeps contacting, and realizes temperature-sensitive temperature less than hand-reset when limiting about 20 DEG C of warm operating temperature.
After hand-reset, stationary contact bridge 14 restores, and all set the temperature-sensitive temperature of temperature-sensitive bag 12 reaches same to temperature limiter next time again
Protected by temperature limitation action during overtemperature prote working value.
In the present embodiment, warm operating temperature is limited as 90 DEG C, the temperature sensor of temperature limiter temperature-sensitive bag 12 only needs to be reduced to 70
DEG C when can realize hand-reset.
Claims (3)
1. a kind of hand reset liquid expansion temp limiter, including public terminal（1）, insulation shell（2）, movable contact spring（3）, bow spring
（4）, static contact（5）, moving contact（6）, release link（7）, adjusting screw（8）, bellows（9）, push rod（10）, capillary（11）And sense
Thermometer bulb（12）, movable contact spring（3）By housing（301）And inner sheet（302）Two parts form, inner sheet（302）Original state have one
Fixed is bent upwards inclination angle, inner sheet（302）And housing（301）There is the relative left edge of a knife（3021）With the right edge of a knife（3011）, bend spring
（4）The left edge of a knife relative installed in two（3021）With the right edge of a knife（3011）Go up and be in compressive state, inner sheet（302）In the middle part of outer end
Left tongue piece provided with protrusion（3022）, housing（301）Inner middle part is provided with the right tongue piece of protrusion（3012）And respectively penetrate bow spring
（4）In corresponding square hole, bend spring（4）The hook portion of bottom（402）With housing（301）Clasp joint connects, the bellows（9）, capillary
Pipe（11）, temperature-sensitive bag（12）Capsule stack is formed, appropriate liquid working substance is filled with the capsule stack, is had at normal temperatures certain
Initial displacement.It is characterized in that：It is additionally provided with stationary contact bridge（14）And static terminal（13）, the stationary contact bridge（14）Using elastic spring
It is made, in height two-stage sheet, stationary contact bridge（14）High piece（1401）With static contact（5）Bottom is riveted on and static contact（5）Bottom
Housing corresponding to portion（2）Bottom is provided with a vertical emptying aperture（201）, stationary contact bridge（14）Low（1402）Pass through trip bolt
（15）, clamp nut（16）With static terminal（13）It is fixedly connected on insulation shell（2）On, static contact（5）In elastic suspension certainly
By state.
2. hand reset liquid expansion temp limiter according to claim 1, it is characterised in that：The stationary contact bridge（14）'s
High piece（1401）With low（1402）Between outer back gauge B be 0.5~2mm.
3. hand reset liquid expansion temp limiter according to claim 1, it is characterised in that：The stationary contact bridge（14）It is
It is made up of beryllium-bronze material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049726.4A CN107610976B (en) | 2017-10-31 | 2017-10-31 | A kind of hand reset liquid expansion temp limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711049726.4A CN107610976B (en) | 2017-10-31 | 2017-10-31 | A kind of hand reset liquid expansion temp limiter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107610976A true CN107610976A (en) | 2018-01-19 |
| CN107610976B CN107610976B (en) | 2019-10-25 |
Family
ID=61084109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711049726.4A Active CN107610976B (en) | 2017-10-31 | 2017-10-31 | A kind of hand reset liquid expansion temp limiter |
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| Country | Link |
|---|---|
| CN (1) | CN107610976B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321016A (en) * | 2018-02-07 | 2018-07-24 | 佛山市汇莱德电器有限公司 | A kind of driving switch coupler of novel manual resetting structure |
| CN110491726A (en) * | 2019-09-12 | 2019-11-22 | 佛山通宝华盛电热控制器有限公司 | A kind of type liquid expansion temperature controller |
| CN108321016B (en) * | 2018-02-07 | 2024-05-24 | 广东汇莱德温控器有限公司 | Gear switch coupler with manual reset structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2211353A (en) * | 1987-10-19 | 1989-06-28 | Thermostat & Schaltgeraetebau | Thermal switches |
| CN2582147Y (en) * | 2002-11-04 | 2003-10-22 | 佛山通宝股份有限公司 | Hand reset liquid expansion temp limiter with leakage protection structure |
| CN2857201Y (en) * | 2005-11-29 | 2007-01-10 | 王文杰 | Temp limiter |
| CN201069533Y (en) * | 2007-07-30 | 2008-06-04 | 陈永龙 | Temperate limit device |
| CN207441574U (en) * | 2017-10-31 | 2018-06-01 | 佛山通宝华盛电热控制器有限公司 | A kind of hand reset liquid expansion temp limiter |
-
2017
- 2017-10-31 CN CN201711049726.4A patent/CN107610976B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2211353A (en) * | 1987-10-19 | 1989-06-28 | Thermostat & Schaltgeraetebau | Thermal switches |
| CN2582147Y (en) * | 2002-11-04 | 2003-10-22 | 佛山通宝股份有限公司 | Hand reset liquid expansion temp limiter with leakage protection structure |
| CN2857201Y (en) * | 2005-11-29 | 2007-01-10 | 王文杰 | Temp limiter |
| CN201069533Y (en) * | 2007-07-30 | 2008-06-04 | 陈永龙 | Temperate limit device |
| CN207441574U (en) * | 2017-10-31 | 2018-06-01 | 佛山通宝华盛电热控制器有限公司 | A kind of hand reset liquid expansion temp limiter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108321016A (en) * | 2018-02-07 | 2018-07-24 | 佛山市汇莱德电器有限公司 | A kind of driving switch coupler of novel manual resetting structure |
| CN108321016B (en) * | 2018-02-07 | 2024-05-24 | 广东汇莱德温控器有限公司 | Gear switch coupler with manual reset structure |
| CN110491726A (en) * | 2019-09-12 | 2019-11-22 | 佛山通宝华盛电热控制器有限公司 | A kind of type liquid expansion temperature controller |
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| Publication number | Publication date |
|---|---|
| CN107610976B (en) | 2019-10-25 |
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