CN108321014A - A kind of anti-reset temperature controller of dual fail-safe - Google Patents

A kind of anti-reset temperature controller of dual fail-safe Download PDF

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Publication number
CN108321014A
CN108321014A CN201810127853.XA CN201810127853A CN108321014A CN 108321014 A CN108321014 A CN 108321014A CN 201810127853 A CN201810127853 A CN 201810127853A CN 108321014 A CN108321014 A CN 108321014A
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CN
China
Prior art keywords
reset
movable contact
mounting base
contact spring
temperature controller
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CN201810127853.XA
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CN108321014B (en
Inventor
黄普添
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Foshan City Shunde District Hsbc Electrical Appliance Manufacturing Co Ltd
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Foshan City Shunde District Hsbc Electrical Appliance Manufacturing Co Ltd
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Priority to CN201810127853.XA priority Critical patent/CN108321014B/en
Publication of CN108321014A publication Critical patent/CN108321014A/en
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Publication of CN108321014B publication Critical patent/CN108321014B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/02Details
    • H01H37/32Thermally-sensitive members
    • H01H37/52Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/521Thermally-sensitive members actuated due to deflection of bimetallic element comprising a plurality of bimetals acting in the same direction

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

A kind of anti-reset temperature controller of dual fail-safe, upper connecting terminal is electrically connected with the second bimetal leaf, the movable end of second bimetal leaf is equipped with moving contact, mounting base is equipped with below movable contact spring component, it is threaded in mounting base and adjusts porcelain bar assembly, porcelain bar assembly one end is adjusted to offset with movable contact spring component, the other end passes through the cavity in mounting base to extend mounting base, anti- reset sliding block is elasticly connected in cavity, anti- one end for resetting sliding block is extended is provided with anti-reset spacing block outside mounting base, upper moving contact is dielectrically separated from by anti-reset spacing block after the second bimetal leaf high temperature deformation with static contact;The anti-side for resetting sliding block, which is driven, is connected to reset drives button, the other end of reset drives button extends outside mounting base, reset drives button pushes anti-reset spacing block to leave between upper moving contact and static contact insulation after the recovery of the second bimetal leaf, it realizes and resets, it avoids being not handled by for a long time due to user, resets the problems such as causing dry combustion method repeatedly after so that the second bimetal leaf is cooled down.

Description

A kind of anti-reset temperature controller of dual fail-safe
Technical field
The present invention relates to temperature controller field, the anti-reset temperature controller of specifically a kind of dual fail-safe.
Background technology
Currently, temperature controller is applied on electrical heating utensil more, it is double when sensing that temperature equals or exceeds temperature preset value Sheet metal temperature distortion simultaneously pushes dry burning resistance switch to act, and to disconnect conducting wire, realizes the effect of anti-dry, still, now Temperature controller single bimetal leaf Anti-overheating structure is only installed, when be equipped with substance protect structure temperature controller damage when, temperature Control device loses the protective effect to electric heater, and entire electric heater is caused to damage even more serious safety accident, and Bimetal leaf has auto-reset function in traditional temperature controller, and bimetal leaf is less than reset temperature preset value in own temperature When, bimetal leaf deformation automatically resets, such as:Reset temperature preset value is 50 DEG C, and bimetal leaf is conductive because dry combustion method (overheat) disconnects Circuit, if user does not have timely processing dry combustion method problem, after radiating and cooling after a period of time, own temperature is less than bimetal leaf 50 DEG C, bimetal leaf resets, and conducting wire is again switched on, and bimetal leaf can disconnect conducting wire because of dry combustion method again, so repeat to do Electricity, cooling reset energization are blown, the electric appliance that temperature controller is used in connection with the temperature controller is easy aging, so that service life reduction, Er Qieji Easily cause safety accident.
Invention content
It is above-mentioned existing it is an object of the invention to solve the problems, such as, a kind of a kind of dual fail-safe simple and reasonable for structure is provided Anti- reset temperature controller, effect is to avoid the damage of single bimetallic sheet structure that temperature controller is caused to fail and bimetal leaf drop Temperature resets the problems such as causing to repeat dry combustion method.
A kind of anti-reset temperature controller of dual fail-safe, including insulated column, be separately installed on insulated column the first bimetal leaf, on Connecting terminal, static contact, movable contact spring component and the lower connecting terminal being connect with movable contact spring component, one end of movable contact spring component with Static contact is electrically connected, and insulating part is equipped between the other end of movable contact spring component and the movable end of the first bimetal leaf, described Upper connecting terminal is electrically connected with the second bimetal leaf, and the movable end of the second bimetal leaf is equipped with moving contact, upper moving contact with Static contact is electrically connected;Under normal condition, temperature controller is provided with the first bimetallic sheet structure, can effectively be that temperature controller raising is anti- The advantageous effect of dry combustion method, but since the first bimetal leaf is connect with movable contact spring component, and movable contact spring modular construction it is complex or Error in person's assembling process has certain probability the failure of the first bimetal leaf anti-dry occur, and temperature controller increases by second pair at this time Sheet metal, double bimetallic sheet structure are capable of providing duplicate protection, and after solving single bimetallic sheet structure damage, temperature controller is anti-dry Failure is burnt, entire electric heater is caused to damage even more serious safety accident.
It is equipped with mounting base below movable contact spring component, is threaded in mounting base and adjusts porcelain bar assembly, adjusts porcelain bar assembly One end offsets with movable contact spring component, and the other end passes through the cavity in mounting base to extend mounting base, and adjusting porcelain bar assembly is made to push Movable contact spring component slight bending deforms, and temperature controller is made to realize the heat insulation function of different temperatures.
Anti- reset sliding block is elasticly connected in cavity, anti-one end for resetting sliding block is extended is provided with anti-reset outside mounting base Spacing block, the anti-side for resetting sliding block, which is driven, is connected to reset drives button, and the other end of reset drives button extends outside mounting base.
Upper moving contact is dielectrically separated from by anti-reset spacing block after the second bimetal leaf high temperature deformation with static contact.
Under temperature controller normal condition, upper moving contact is connected with static contact, and anti-reset spacing block is made in elasticity at this time It is firmly pressed against the outside of moving contact down, after the second bimetal leaf high temperature deformation, moves up, anti-reset spacing block is made to lose Resistance is removed, shifts anti-reset spacing block between upper moving contact and static contact onto under elastic reaction, when being equipped with the temperature controller Device resets, the two is dielectrically separated from by anti-reset spacing block, is kept away when being not handled by for a long time after the cooling of the second bimetal leaf Exempt from upper moving contact and be contacted again with static contact to power on, device is made to repeat dry combustion method.
Reset drives button pushes anti-reset spacing block to leave upper moving contact and static contact after the recovery of the second bimetal leaf It between insulation, realizes and resets, after which avoids the first bimetal leaf from damaging, electric heater dry combustion method occurs and triggers the second bimetallic It is multiple after so that the second bimetal leaf is cooled down since user is not handled by for a long time after thermostat circuit disconnects after piece is thermally deformed The problems such as dry combustion method repeatedly is caused in position.
Upper static contact and lower static contact are separately installed on the static contact, corresponding movable contact spring component is equipped with and lower stationary contact The lower moving contact of head electrical contact, upper static contact is electrically connected with upper moving contact, simple in structure, and contact is convenient.
Described anti-one end for resetting sliding block offers sliding block and resets inclined surface, and corresponding reset drives button is equipped with and cunning The push-button reset inclined surface of press-fit is pressed in block reset inclined surface, and the anti-other end for resetting sliding block is extended with locating convex block, convex Resetting spring is socketed on block, anti-reset sliding block is slided in the cavity by resetting spring level.
This is simple in structure, and reset drives button easy to assembly is in anti-reset spacing block in the second bimetal leaf high temperature deformation After being afterwards dielectrically separated from upper moving contact and static contact, user needs to reset in use, pushing multiple after the cooling of the second bimetal leaf Position activation button is moved to anti-reset sliding block direction, and push-button reset inclined surface, which tilts, compresses sliding block reset inclined surface, makes not Tongfang It can be driven to the reset drives button of movement and reset the sliding of sliding block realization level, drive anti-reset spacing block to leave at this time dynamic Between contact and static contact insulation, complete to reset.
The adjusting porcelain bar assembly includes adjusting rod, and the top of adjusting rod is equipped with the branch sleeve for extending into cavity, even Connect cylinder set internal thread is connected with connector, is equipped with insulation porcelain bar at the top of connector, through-hole is offered in corresponding mounting base, absolutely Edge porcelain bar extends through-hole and offsets with movable contact spring component, and the structure is easy for installation, and assembly is quick, can improve production efficiency, leads to It crosses and the connector of insulation porcelain bar is installed is threadedly coupled with adjusting rod, convenient for passing through every electrical isolation and before manufacture manual fine tuning The height of lower movable contact spring is adjusted deformation parameter so that it can reach the accurate range for determining holding temperature capable of being adjusted.
The bottom of the cavity offers screw shell, and the outer wall for connecting jacket casing offers and screw shell screw-thread fit External screw thread is connected through a screw thread the precision for improving and adjusting.
The outside of the adjusting rod extends restraining position ring block, and the edge of spacing ring is extended with spacing block set, corresponding mounting base Bottom is extended with the extension protrusion with spacing block set limit cooperation, and the adjustable range of adjusting rod is made to be limited to the length of screw shell Range avoids transition rotation that insulation porcelain bar excessive pressure is caused to cause temperature controller to damage to contact assemblies.
The movable contact spring component includes the upper movable contact spring of mutual elastic jaw and lower movable contact spring, the fixing end of lower movable contact spring with Lower connecting terminal is fixed on insulated column, and the movable end of lower movable contact spring is connect with one end of upper movable contact spring, upper movable contact spring it is another End is equipped with lower moving contact, and lower moving contact is electrically connected with lower static contact, and pressure regulation piece is extended in the fixing end of lower movable contact spring, is adjusted Elastic spring is equipped between the movable end of tabletting and the other end of upper movable contact spring, which is public technology, is conducive to standardize Production improves production efficiency.
The anti-spacing block that resets includes the interconnecting piece being connect with anti-reset sliding block, and the top surface horizontal extension of interconnecting piece has absolutely The isolation part of edge isolation upper moving contact and static contact, interconnecting piece, isolation part and anti-reset sliding block connect for integral type, structure letter It is single, it is convenient for production.
Pressure regulation piece bottom offers the located cavity suitable for adjusting location fit at the top of porcelain bar, and located cavity can be kept away Exempt from pressure regulation piece since elastic pressure causes offset to deform, it is ensured that pressure regulation piece can keep upper and lower displacement.
The bottom of first bimetal leaf is provided with insulating film, since the second bimetal leaf is mounted on the first bimetal leaf Lower section, after insulating film can avoid the second bimetal leaf high temperature deformation, be bent upwards with the first bimetal leaf be in electrical contact, cause Temperature controller anti-dry fails.
The beneficial effects of the invention are as follows:
A kind of anti-reset temperature controller of dual fail-safe of the present invention, simple in structure, double bimetallic sheet structure is capable of providing dual Protection, after solving single bimetallic sheet structure damage, the failure of temperature controller anti-dry causes entire electric heater damage even more Serious safety accident, after avoiding the first bimetal leaf from damaging, there is dry combustion method and triggers the heated shape of the second bimetal leaf in electric heater After change, after thermostat circuit disconnects, since user is not handled by for a long time, resets and caused instead after so that the second bimetal leaf is cooled down The problems such as multiple dry combustion method.
Description of the drawings
Fig. 1 is the normal operating conditions structural schematic diagram of the present invention.
Fig. 2 is the dry combustion method working state structure schematic diagram of the present invention.
Fig. 3 is the reset working state structure schematic diagram of the present invention.
Fig. 4 is the cross-sectional view one of the present invention.
Fig. 5 is the cross-sectional view two of the present invention.
Fig. 6 is the adjusting porcelain bar assembly cross-sectional view of the present invention.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figures 1 to 3, the anti-reset temperature controller of a kind of dual fail-safe, including insulated column 1 are separately installed on insulated column 1 First bimetal leaf 2, upper connecting terminal 3, static contact 4, movable contact spring component 5 and the lower terminals being connect with movable contact spring component 5 Son 6, one end and the static contact 4 of movable contact spring component 5 are electrically connected, the work of the other end of movable contact spring component 5 and the first bimetal leaf 2 Insulating part 7 is installed, the upper connecting terminal 3 is electrically connected with the second bimetal leaf 8, the work of the second bimetal leaf 8 between moved end Moved end is equipped with moving contact 9, and upper moving contact 9 is electrically connected with static contact 4;Under normal condition, temperature controller is provided with first pair 2 structure of sheet metal can effectively be the advantageous effect that temperature controller improves anti-dry, but due to the first bimetal leaf 2 and movable contact spring Error during component 5 connects, and 5 structure of movable contact spring component is complex or assembling process has certain probability to occur first pair 2 anti-dry of sheet metal fails, and temperature controller increases by the second bimetal leaf 8 at this time, and double bimetallic sheet structure is capable of providing dual guarantor Shield, after solving single bimetallic sheet structure damage, the failure of temperature controller anti-dry causes entire electric heater damage even more tight The safety accident of weight.
5 lower section of movable contact spring component is equipped with mounting base 10, is threaded in mounting base 10 and adjusts porcelain bar assembly 11, adjusts porcelain 11 one end of bar assembly offsets with movable contact spring component 5, and the other end passes through the cavity 12 in mounting base 10 to extend mounting base 10, makes tune It saves porcelain bar assembly 11 and pushes the 5 slight bending deformation of movable contact spring component, temperature controller is made to realize the heat insulation function of different temperatures.
Anti- reset sliding block 13 is elasticly connected in cavity 12, anti-one end for resetting sliding block 13 is extended and is arranged outside mounting base 10 Have an anti-reset spacing block 14, the anti-side for resetting sliding block 13, which is driven, is connected to reset drives button 15, reset drives button 15 it is another Extend outside mounting base 10 at end.
Upper moving contact 9 and static contact 4 are dielectrically separated from by anti-reset spacing block 14 after 8 high temperature deformation of the second bimetal leaf.
Under temperature controller normal condition, upper moving contact 9 is connected with static contact 4, and anti-reset spacing block 14 is in bullet at this time Property active force under be pressed against the outside of moving contact 9 and moved up after the second 8 high temperature deformation of bimetal leaf, make it is anti-reset every Resistance is lost from block 14, anti-reset spacing block 14 is shifted onto between upper moving contact 9 and static contact 4 under elastic reaction, works as installation There is the device of the temperature controller when being not handled by for a long time, resetted after the cooling of the second bimetal leaf 8, anti-reset spacing block 14 will The two is dielectrically separated from, and is avoided moving contact 9 from being contacted again with static contact 4 and is powered on, and device is made to repeat dry combustion method.
Reset drives button 15 the second bimetal leaf 8 recovery after push anti-resets spacing block 14 leave upper moving contact 9 and It between static contact 4 insulate, realizes and resets, after which avoids the first bimetal leaf 2 from damaging, dry combustion method triggering the occurs in electric heater After two bimetal leafs 8 are thermally deformed, after thermostat circuit disconnects, since user is not handled by for a long time, make the second bimetallic Piece 8 resets the problems such as causing dry combustion method repeatedly after cooling down.
As shown in Figs. 4-6, upper static contact 401 and lower static contact 402 are separately installed on the static contact 4, it is corresponding dynamic tactile Piece component 5 is equipped with the lower moving contact 16 being in electrical contact with lower static contact 402, and upper static contact 401 is electrically connected with upper moving contact 9, Simple in structure, contact is convenient.
Described anti-one end for resetting sliding block 13 offers sliding block and resets inclined surface 16, and corresponding reset drives button is equipped with The push-button reset inclined surface 17 that press-fit is pressed in inclined surface is resetted with sliding block, the anti-other end for resetting sliding block 13 is extended with locating convex block 18, resetting spring 19 is socketed on locating convex block 18, anti-reset sliding block is by the horizontal sliding of resetting spring 19 in cavity 12.
This is simple in structure, and reset drives button 15 easy to assembly is high in the second bimetal leaf 8 in anti-reset spacing block 14 After being dielectrically separated from upper moving contact 9 and static contact 4 after warm deformation, user needs to reset after the cooling of the second bimetal leaf 8 to be used When, push reset drives button 15 to be moved to anti-13 direction of reset sliding block, push-button reset inclined surface 17, which tilts, compresses sliding block reset Inclined surface 16 enables the reset drives button 15 that different directions move to drive and resets the sliding of 13 realization level of sliding block, drives at this time It moves anti-reset spacing block 14 to leave between moving contact 9 and the insulation of static contact 8, completes to reset.
The adjusting porcelain bar assembly 11 includes adjusting rod 1101, and the top of adjusting rod 1101, which is equipped with, extends into cavity 12 Branch sleeve 1102, connection 1102 internal thread of jacket casing are connected with connector 1103, and 1103 top of connector is equipped with insulation porcelain bar 1104, offer through-hole 20 in corresponding mounting base 10, insulation porcelain bar 1104 extend through-hole 20 and with 5 phase of movable contact spring component It supports, the structure is easy for installation, and assembly is quick, production efficiency can be improved, by the connector 1103 for being equipped with insulation porcelain bar 1104 It is threadedly coupled, is convenient for every being electrically insulated and before manufacture by the height of movable contact spring under finely tuning by hand, to becoming with adjusting rod 1101 Shape parameter is adjusted so that it can reach the accurate range for determining holding temperature capable of being adjusted.
The bottom of the cavity 12 offers screw shell 21, and the outer wall of connection jacket casing 1102 offers and screw shell 21 The external screw thread 1105 of screw-thread fit is connected through a screw thread the precision for improving and adjusting.
The outside of the adjusting rod 1101 extends restraining position ring block 1106, and the edge of spacing ring 1106 is extended with spacing block set 1107,10 bottom of corresponding mounting base is extended with the extension protrusion 22 with the limit cooperation of spacing block set 1107, makes adjusting rod 1101 Adjustable range be limited to the length range of screw shell 21, avoid transition rotation that 1104 excessive pressure of insulation porcelain bar is caused to contradict piece Component 5 causes temperature controller to damage.
The movable contact spring component 5 includes the upper movable contact spring 501 of mutual elastic jaw and lower movable contact spring 502, lower movable contact spring 502 Fixing end and lower connecting terminal 6 be fixed on insulated column 1, the movable end of lower movable contact spring 502 connects with one end of upper movable contact spring 501 It connects, the other end of upper movable contact spring 501 is equipped with lower moving contact 23, and lower moving contact 23 is electrically connected with lower static contact 402, lower dynamic tactile It is extended with pressure regulation piece 503 in the fixing end of piece 502, is equipped between the movable end of pressure regulation piece 503 and the other end of upper movable contact spring 501 Elastic spring 504, the structure are public technology, are conducive to normalized production, improve production efficiency.
The anti-spacing block 14 that resets includes the interconnecting piece 1401 being connect with anti-reset sliding block 13, and the top surface of interconnecting piece is horizontal It is extended with the isolation part 1402 for being dielectrically separated from moving contact 9 and static contact 4, interconnecting piece 1401, isolation part 1402 and anti-reset Sliding block 13 connects for integral type, simple in structure, convenient for production.
503 bottom of pressure regulation piece offers the located cavity 505 suitable for adjusting 1104 top location fit of porcelain bar, positioning Cavity 505 can avoid pressure regulation piece from causing offset to deform due to elastic pressure, it is ensured that pressure regulation piece 503 can keep upper and lower displacement.
The bottom of first bimetal leaf 2 is provided with insulating film 24, since the second bimetal leaf 8 is mounted on first pair of gold The lower section for belonging to piece 2 after insulating film 24 can avoid 8 high temperature deformation of the second bimetal leaf, is bent upwards and 2 electricity of the first bimetal leaf Contact causes temperature controller anti-dry to fail.
It should be noted that the preferred embodiment of the present invention is given in the specification and its attached drawing of the present invention, still, The present invention can be realized by many different forms, however it is not limited to this specification described embodiment, these embodiments Not as the additional limitation to the content of present invention, purpose of providing these embodiments is makes understanding to the disclosure It is more thorough and comprehensive.Also, above-mentioned each technical characteristic continues to be combined with each other, and forms the various embodiments not being enumerated above, It is considered as the range of description of the invention record;It further, for those of ordinary skills, can be according to the above description It is improved or converted, and all these modifications and variations should all belong to the protection domain of appended claims of the present invention.

Claims (10)

1. a kind of anti-reset temperature controller of dual fail-safe, including insulated column (1), insulated column are separately installed with the first bimetallic on (1) Piece (2), upper connecting terminal (3), static contact (4), movable contact spring component (5) and the lower terminals being connect with movable contact spring component (5) Sub (6), one end and the static contact (4) of movable contact spring component (5) are electrically connected, the other end of movable contact spring component (5) and first pair of gold Insulating part (7) is installed between the movable end of category piece (2), it is characterised in that:The upper connecting terminal (3) is electrically connected with second pair The movable end of sheet metal (8), the second bimetal leaf (8) is equipped with moving contact (9), and upper moving contact (9) is electrical with static contact (4) Connection;
It is equipped with mounting base (10) below movable contact spring component (5), is threaded in mounting base (10) and adjusts porcelain bar assembly (11), adjusts Section porcelain bar assembly (11) one end offsets with movable contact spring component (5), and the other end passes through the cavity (12) in mounting base (10) to extend Mounting base (10);
Anti- reset sliding block (13) is elasticly connected in cavity (12), mounting base (10) is extended outside in anti-one end for resetting sliding block (13) It is provided with anti-reset spacing block (14), the anti-side for resetting sliding block (13), which is driven, is connected to reset drives button (15), and reset drives is pressed The other end of button (15) extends mounting base (10) outside.
2. the anti-reset temperature controller of a kind of dual fail-safe according to claim 1, it is characterised in that:The anti-reset spacing block (14) upper moving contact (9) and static contact (4) are dielectrically separated from after the second bimetal leaf (8) high temperature deformation, reset drives button (15) it pushes anti-reset spacing block (14) to leave upper moving contact (9) after the second bimetal leaf (8) recovery to insulate with static contact (4) Between, it realizes and resets.
3. the anti-reset temperature controller of a kind of dual fail-safe according to claim 1, it is characterised in that:Divide on the static contact (4) Upper static contact (401) and lower static contact (402) are not installed, corresponding movable contact spring component (5) is equipped with and lower static contact (402) electricity The lower moving contact (16) of contact, upper static contact (401) are electrically connected with upper moving contact (9).
4. the anti-reset temperature controller of a kind of dual fail-safe according to claim 1, it is characterised in that:The anti-reset sliding block (13) One end offer sliding block reset inclined surface (16), corresponding reset drives button be equipped with sliding block reset inclined surface presses press-fitting The push-button reset inclined surface (17) of conjunction, the anti-other end for resetting sliding block (13) are extended with locating convex block (18), locating convex block (18) On be socketed with resetting spring (19), anti-reset sliding block is by the horizontal sliding of resetting spring (19) in cavity (12).
5. the anti-reset temperature controller of a kind of dual fail-safe according to claim 1, it is characterised in that:The adjusting porcelain bar assembly (11) include adjusting rod (1101), the top of adjusting rod (1101) is equipped with the branch sleeve (1102) for extending into cavity (12), Connection jacket casing (1102) internal thread is connected with connector (1103), and insulation porcelain bar (1104) is equipped at the top of connector (1103), Offer through-hole (20) on corresponding mounting base (10), insulation porcelain bar (1104) extend through-hole (20) and with movable contact spring component (5) it offsets.
6. the anti-reset temperature controller of a kind of dual fail-safe according to claim 5, it is characterised in that:The bottom of the cavity (12) Screw shell (21) is offered, the outer wall of connection jacket casing (1102) offers and the external screw thread of screw shell (21) screw-thread fit (1105)。
7. the anti-reset temperature controller of a kind of dual fail-safe according to claim 5, it is characterised in that:The adjusting rod (1101) Outside extends restraining position ring block (1106), and the edge of spacing ring (1106) is extended with spacing block set (1107), corresponding mounting base (10) bottom is extended with the extension protrusion (22) with spacing block set (1107) limit cooperation.
8. according to a kind of anti-reset temperature controller of dual fail-safe of claim 1 or 3, it is characterised in that:The movable contact spring component (5) include mutual elastic jaw upper movable contact spring (501) and lower movable contact spring (502), the fixing end of lower movable contact spring (502) connects under Line terminals (6) are fixed on insulated column (1), and the movable end of lower movable contact spring (502) is connect with one end of upper movable contact spring (501), on The other end of movable contact spring (501) is equipped with lower moving contact (23), and lower moving contact (23) is electrically connected with lower static contact (402), under It is extended with pressure regulation piece (503) in the fixing end of movable contact spring (502), the movable end of pressure regulation piece (503) is another with upper movable contact spring (501) Elastic spring (504) is equipped between one end.
9. the anti-reset temperature controller of a kind of dual fail-safe according to claim 1, it is characterised in that:The anti-reset spacing block (14) include the interconnecting piece (1401) being connect with anti-reset sliding block (13), the top surface horizontal extension of interconnecting piece, which is dielectrically separated from, to be moved The isolation part (1402) of contact (9) and static contact (4).
10. the anti-reset temperature controller of a kind of dual fail-safe according to claim 1, it is characterised in that:First bimetal leaf (2) bottom is provided with insulating film (24).
CN201810127853.XA 2018-02-07 2018-02-07 Double-insurance reset-preventing temperature controller Active CN108321014B (en)

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CN110828203A (en) * 2018-08-14 2020-02-21 新巨企业股份有限公司 Stroke adjusting cover applied to elastic sheet type microswitch

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