CN205211660U - Liquid expanding heavy current temperature controller - Google Patents
Liquid expanding heavy current temperature controller Download PDFInfo
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- CN205211660U CN205211660U CN201520682776.6U CN201520682776U CN205211660U CN 205211660 U CN205211660 U CN 205211660U CN 201520682776 U CN201520682776 U CN 201520682776U CN 205211660 U CN205211660 U CN 205211660U
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Abstract
The utility model relates to a liquid expanding heavy current temperature controller. It includes power spare temperature sensing part, temperature settlement main part and electric switch part, and the electric switch part includes ceramics base, reed seat, movable contact spring, connecting screw and external terminal, and reed seat and movable contact spring pass through the connecting screw and fix in ceramics base's cavity its characterized in that: the movable contact spring includes riveting portion and action portion, and riveting portion includes the slice main part, has seted up one in the slice main part and has crossed screw interstitial hole and two at least riveting holes, crosses the screw interstitial hole and is equipped with collar flange all around. The utility model discloses simple structure can be used in on electric appliances such as the various family expenses of power 5.5KW capacity, commercial high -power electric water heater, electric oven, electric boiling -water heater, western kitchen equipment and the industry electrical equipment. Can satisfy the demand of the high -power fast hot type water heater of production. Reduce partly electrical accessories cost of user's complete machine control by a wide margin.
Description
Technical field
The utility model relates to a kind of thermostat being mainly used in household electrical appliance, especially a kind ofly utilizes liquid expansion type temperature controller that heated liquid dilating principle carries out work, that have temperature adjustment function.
Background technology
The operation principle of liquid expansion type temperature controller: application principle of expanding with heat and contracting with cold, by to by bellows, capillary, liquid working substance is filled with in the Power Component of temperature sensing tube or temperature-sensitive bag parts welding formation confined space, utilize the physical characteristic that liquid expands with heat and contract with cold, when temperature sensing tube or temperature-sensitive bag induction ambient temperature change, inside filling the change that working medium change in volume changes confined space pressure or volume into makes the diaphragm of bellows produce displacement, when reaching set point, by film handle, diaphragm capsule base plate, the quick snap switch that the mechanism urges of push rod composition is made up of flexible member produces on-off action, when temperature raises, switch motion disconnects, when temperature reduces, switch is replied closed, realize temp. control function.
The liquid formula thermostat that rises (generally comprises bellows 4 primarily of force piece temperature-sensitive part, diaphragm capsule base plate 2, push rod 3, circle jump ring, capillary 26, sleeve pipe, temperature sensing tube 28, tail pipe forms), temperature setting main part is (by fixed head 15, regulating shaft 13, regulate female, steel ball, insulation board 12, support 23, banking stop 6, leaf spring 5, shell 1), appliance switch part (generally comprises external terminal (pin) 11, pedestal 10, fixed contact 9, moving contact, reed seat 20, movable contact spring 21, static contact 7, attachment screw 18, spring washer 19 forms) three large parts compositions.Have temperature-controlled precision high, continuous long distance perspective can answer hot-surface temperature, highly sensitive, the variations in temperature of the rapid personal comments thermometer bulb of energy is reacted, and contact quick action, break-make temperature difference is little.Structure is simple, stable and reliable for performance, long service life.Aided design is flexible, can provide multiple switching configuration, temperature-sensitive bag, capillary, regulating shaft length, external diameter equal-specification.Installation form is various, has the features such as multiple installation fixed form and binding post type.The liquid formula thermostat that rises is widely used in various household electrical appliance as electrical heating appliance products such as electric heater, roaster, electric water-boiling devices, can meet user to temperature controlled various requirement.
The liquid of current household electrical appliances market application rises formula thermostat, the technical parameter of general universal product is: rated voltage 250V, rated current 16A, to be mainly used within the scope of power 3.5KW on the household appliances such as electric heater, baking box, disinfection cabinet, electric water-boiling device, and cannot to be applicable to rated current be 25A, on the electric equipment products such as various family expenses, commercial high power electric heater, roaster, electric water-boiling device, western kitchen equipment of power 5.5KW capacity and industrial electrical equipment equipment.
Summary of the invention
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of structure simple liquid expanding big current thermostat.
Above-mentioned purpose is achieved by the following technical solution:
A kind of liquid expanding big current thermostat, comprise force piece temperature-sensitive part, temperature setting main part and appliance switch part, appliance switch part comprises base of ceramic, reed seat, movable contact spring, attachment screw and external terminal, reed seat and movable contact spring are fixed in the cavity of base of ceramic by attachment screw, it is characterized in that: described movable contact spring comprises caulking part and operating member, caulking part comprises flake main body, flake main body offers one and cross screw interstitial hole and at least two riveted holes, cross screw interstitial hole surrounding and be provided with collar flange.
Above technical scheme is further improved by following measures:
The quantity of described riveted holes is four, and four riveted holes are arranged around crossing screw interstitial hole.
The caulking part of described reed seat comprises plate-like body, screw and at least two riveting columns in the middle of plate-like body offering one, the riveting column of reed seat and the riveted holes one_to_one corresponding of movable contact spring, middle screw surrounding is provided with annular boss, the inner chamber of annular boss is provided with screw thread, and the collar flange of movable contact spring is enclosed within the annular boss of reed seat.
The quantity of described riveting column is four, and four riveting columns are arranged around annular boss.
The outer surface of described attachment screw is provided with copper plate.
Described attachment screw is furnished with a spring washer, and attachment screw is threaded with reed seat through stretching into base of ceramic inner chamber after spring washer and external terminal successively.
The position of described base of ceramic inner chamber install spring bar is provided with 45 degree of chamferings, and the position of riveting stationary contact is sunk counterbore.
The elongated end of described external terminal is with forward location bending leg and an inverted orientation bending leg.
Described base of ceramic is furnished with a plastic casing, and this plastic casing is provided with louvre covering movable contact spring position.
Each technical measures can select a use above, also use capable of being combined, as long as do not form conflict each other.
The present patent application 25A big current type liquid formula thermostat that rises has following characteristics: 1. the liquid of household electrical appliances market application at present rises formula thermostat, the technical parameter of general universal product is: rated voltage 250V, rated current 16A, be mainly used in electric heater within the scope of power 3.5KW, baking box, disinfection cabinet, on the household appliances such as electric water-boiling device, and the type thermostat technical parameter is: rated voltage 250V, rated current is 25A, current capacity is larger than universal 16A product capacity, can be used on the various family expenses of power 5.5KW capacity, commercial high power electric heater, roaster, electric water-boiling device, on the electric equipment products such as western kitchen equipment and industrial electrical equipment equipment.2. the type thermostat is special in family expenses are Instant heating type, quick-heating electric water heater need support the use big current thermostat and develop, family expenses are Instant heating type, quick heating type water heater power generally need reach 5.5KW, require that thermostat will reach the overcurrent capability of 25A, at present this serial liquid formula thermostat rated maximum current that rises only has 16A available, and this kind of 25A big current thermostat has filled up the breach in market, home and abroad.It is fast that quick heating type water heater has firing rate, and the stand-by period is short, hot water feature capacious, and the demand in market is growing, and this kind of 25A electric current thermostat can meet the demand of producing high-power quick heating type water heater.3. various large power, electrically water heater, roaster, electric water-boiling devices etc. adopt 25A big current thermostat directly can connect with the protector of big current and use, directly control heating, temperature-controlling system, do not need the circuit mode adopting secondary line control contactor, directly can substitute the structure of high-power (more than 16A electric current) electronic type control circuit board, significantly reduce user's complete machine and control part electrical accessorie cost, there is circuit design simple, current capacity is large, temperature-controlled precision is high, dependable performance, stable, long service life, the advantage that cost is low, user structure can be met simple, dependable performance, the requirement of low cost, therefore will be widely used.4. the type thermostat key technical feature: 1). contact, movable contact spring, terminal structure, material, the assembling mode of the former universal product switch module of design improvement, improve the conveyance capacity of parts; 2). ensure that switch module crosses reliability, the firmness of the connection of electric parts, improve assembling, the connection of connector, fastening quality; 3). optimal design switch module makes switch movable contact sheet, the volume needed for contact critical component, space meets the requirements, and meets arc extinguishing, cooling requirements between splicing ear, switch movable contact sheet, contact.
Accompanying drawing explanation
Fig. 1 is stereogram of the present utility model;
Fig. 2 is three-dimensional exploded view of the present utility model;
Fig. 3 is front view of the present utility model (omitting capillary and sleeve pipe);
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the left view of Fig. 3;
Fig. 6 is the stereogram of movable contact spring;
Fig. 7 is the stereogram of reed seat;
Fig. 8 is the stereogram of base of ceramic;
Fig. 9 is the stereogram of external terminal;
Figure 10 is the stereogram of ceramic push rod;
Figure 11 is the stereogram of plastic casing.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.What be necessary to herein means out is that following execution mode is only for being further described the utility model; can not be interpreted as the restriction to the utility model protection range, the those of ordinary skill in this field can make some nonessential improvement and adjustment according to essence of the present utility model to following execution mode.In addition, if below technical characteristic involved in described each execution mode of the utility model that levy between do not form conflict and just can mutually combine.
A kind of liquid expanding big current thermostat, comprise force piece temperature-sensitive part, temperature setting main part and appliance switch part, appliance switch part comprises base of ceramic 10, reed seat 20, movable contact spring 21, attachment screw 18 and external terminal 11, reed seat and movable contact spring are fixed in the cavity of base of ceramic by attachment screw, described movable contact spring comprises caulking part and operating member, caulking part comprises flake main body 211, flake main body offers one and cross screw interstitial hole 212 and at least two riveted holes 213, cross screw interstitial hole surrounding and be provided with collar flange 214.
The quantity of described riveted holes is four, and four riveted holes are arranged around crossing screw interstitial hole.
The caulking part of described reed seat comprises plate-like body 201, screw 202 and at least two riveting columns 203 in the middle of plate-like body offering one, the riveting column of reed seat and the riveted holes one_to_one corresponding of movable contact spring, middle screw surrounding is provided with annular boss 204, the inner chamber of annular boss is provided with screw thread, and the collar flange of movable contact spring is enclosed within the annular boss of reed seat.
The quantity of described riveting column is four, and four riveting columns are arranged around annular boss.
The outer surface of described attachment screw is provided with copper plate (not shown).
Described attachment screw is furnished with a spring washer 19, and attachment screw is threaded with reed seat through stretching into base of ceramic inner chamber after spring washer and external terminal successively.
The position of described base of ceramic inner chamber install spring bar is provided with 45 degree of chamferings 101, and the position of riveting stationary contact is sunk counterbore 102.
The elongated end of described external terminal is with forward location bending leg 111 and an inverted orientation bending leg 112.
Described base of ceramic is furnished with a plastic casing, and this plastic casing is provided with louvre 1-1 covering movable contact spring position.
For adapting to the requirement of movable contact spring by 25A electric current, except movable contact spring cross section is widened, the part that riveted joint is fixed on reed seat is that full wafer and reed seated connection touch, increase area of passage, and by four fixing movable contact springs of salient point riveted joint, further increase riveting reliability, meet the requirement by big current, crossing the structure of screw interstitial hole surrounding employing flange projection, peripheral flanging plays the effect of reinforcement, and the structural strength of movable contact spring mesopore and four riveting salient point hole sites is strengthened.Movable contact spring material adopts high-quality import beryllium copper material to manufacture, and material trademark is C1720R, thickness δ=0.22 ± 0.02.
For adapting to the requirement of reed seat by 25A electric current, reed seat cross section is widened, the position that riveted joint is fixed contacts with movable contact spring full wafer, increase area of passage, and by four fixing movable contact springs of salient point riveted joint, further increase riveting reliability, meet the requirement by big current, middle screw surrounding adopts the structure of flange boss, screw thread number of turns increase about 1 times, add the contact area of attachment screw and screw, play the effect of high current area of passage, make terminal and reed seat, the overcurrent parts of movable contact spring connect more solid and reliable, avoid by causing overheated problem to occur because connecting to loosen during big current.Reed seat two bottom sides leaves two otch makes the width of reed seat narrow, switch motive force when being conducive to tune switch parameter, the adjustment of action gap value.
Terminal (pin) adopts the fastening means of copper facing screw+bullet pad with the connected mode of reed seat, movable contact spring, screw copper facing reduces contact resistance, locking effect can be played after screw+bullet pad is fastening, to avoid between electric connecting part, by causing overheated problem to occur because connecting to loosen during big current, ensureing between electric connecting part, to connect fastening reliability.
For adapting to the requirement of movable contact spring by 25A electric current, the channel section that base of ceramic installs movable contact spring is widened, and the position chamfering of install spring bar changes 2x45 ° of angle into, different from 16A thermostat base of ceramic 120 ° of wedge angles, increases reed seat and movable contact spring contact area.The groove length that base of ceramic installs movable contact spring lengthens, and the position of riveting stationary contact is sunk counterbore, and the space of dynamic and static contact service position is strengthened, and is conducive to the heat radiation of starting the arc during dynamic and static contact on-off action.
This dynamic and static contact material adopts silver-colored tin alloy material AgSnO2 (12) contact material environment-protecting asepsis, oxide particle is thinner, the strength of materials, hardness are higher, and the combination properties such as processability, resistance fusion welding and mar proof are good, have excellent anti-melting welding and arc ablation resistance performance.Under the condition that electric current is larger, AgSnO2 has better arc ablation resistance ability than AgCdO, and AgSnO2 contact material is widely used in middle high-current relay, contactor, low-voltage circuit breaker and car electrics etc.
This external terminal (pin), material is H65 brass, thickness 1.2mm, band M4 screw, terminal front end is respectively with 1 location bending forward and backward, thermostat is when connecting wires, lock-screw binding post can rotate with screw direction of rotation, but the location bending in this anatomical connectivity terminal (pin) left side, binding post is made to block location non rotating, so just more quickly and reliably binding post can be fastened on splicing ear (pin) by lock-screw, enhance reliability and the fail safe of band electrical connector
The 95 ceramic material manufactures that pottery push rod adopts insulation property good, the fillet that push rod front end contacts with movable contact spring convex tendon is R1.5, larger than 16A universal fillet R0.5, overall dimension also has larger difference, can prevent from weighing movable contact spring convex tendon position wounded, reduce the wearing and tearing of push rod head, extend the life-span of switch movable contact sheet.
Plastic casing adopts the PBT plastic manufacture of high flame retardant, with 16A universal external case difference: this shell covering switch contact service position left and right sides, front position has square, grid type louvre, the heat that when being beneficial to switch movable contact sheet, contact assembly work, on-off action produces sheds, and reduces switch internal temperature rise.
Claims (9)
1. a liquid expanding big current thermostat, comprise force piece temperature-sensitive part, temperature setting main part and appliance switch part, appliance switch part comprises base of ceramic, reed seat, movable contact spring, attachment screw and external terminal, reed seat and movable contact spring are fixed in the cavity of base of ceramic by attachment screw, it is characterized in that: described movable contact spring comprises caulking part and operating member, caulking part comprises flake main body, flake main body offers one and cross screw interstitial hole and at least two riveted holes, cross screw interstitial hole surrounding and be provided with collar flange.
2. liquid expanding big current thermostat according to claim 1, is characterized in that: the quantity of described riveted holes is four, and four riveted holes are arranged around crossing screw interstitial hole.
3. liquid expanding big current thermostat according to claim 1, it is characterized in that: the caulking part of described reed seat comprises plate-like body, screw and at least two riveting columns in the middle of plate-like body offering one, the riveting column of reed seat and the riveted holes of movable contact spring---corresponding, middle screw surrounding is provided with annular boss, the inner chamber of annular boss is provided with screw thread, and the collar flange of movable contact spring is enclosed within the annular boss of reed seat.
4. liquid expanding big current thermostat according to claim 3, is characterized in that: the quantity of described riveting column is four, and four riveting columns are arranged around annular boss.
5. liquid expanding big current thermostat according to claim 1, is characterized in that: the outer surface of described attachment screw is provided with copper plate.
6. liquid expanding big current thermostat according to claim 5, is characterized in that: described attachment screw is furnished with a spring washer, and attachment screw is threaded with reed seat through stretching into base of ceramic inner chamber after spring washer and external terminal successively.
7. liquid expanding big current thermostat according to claim 1, is characterized in that: the position of described base of ceramic inner chamber install spring bar is provided with 45 degree of chamferings, and the position of riveting stationary contact is sunk counterbore.
8. liquid expanding big current thermostat according to claim 1, is characterized in that: the elongated end of described external terminal is with forward location bending leg and an inverted orientation bending leg.
9. liquid expanding big current thermostat according to claim 1, is characterized in that: described base of ceramic is furnished with a plastic casing, and this plastic casing is provided with louvre covering movable contact spring position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682776.6U CN205211660U (en) | 2015-09-02 | 2015-09-02 | Liquid expanding heavy current temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520682776.6U CN205211660U (en) | 2015-09-02 | 2015-09-02 | Liquid expanding heavy current temperature controller |
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| Publication Number | Publication Date |
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| CN205211660U true CN205211660U (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520682776.6U Active CN205211660U (en) | 2015-09-02 | 2015-09-02 | Liquid expanding heavy current temperature controller |
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| CN (1) | CN205211660U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960763A (en) * | 2017-05-05 | 2017-07-18 | 佛山市川东磁电股份有限公司 | A kind of stable type low-resistance temperature controller |
| CN110021505A (en) * | 2019-05-19 | 2019-07-16 | 梁根如 | Current over-load protector |
-
2015
- 2015-09-02 CN CN201520682776.6U patent/CN205211660U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960763A (en) * | 2017-05-05 | 2017-07-18 | 佛山市川东磁电股份有限公司 | A kind of stable type low-resistance temperature controller |
| CN106960763B (en) * | 2017-05-05 | 2018-12-11 | 佛山市川东磁电股份有限公司 | A kind of stable type low-resistance temperature controller |
| CN110021505A (en) * | 2019-05-19 | 2019-07-16 | 梁根如 | Current over-load protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Liquid expanding heavy current temperature controller Effective date of registration: 20200616 Granted publication date: 20160504 Pledgee: China Everbright Bank Zhongshan branch Pledgor: ZHONGSHAN ZHONGHENG ELECTRICAL APPLIANCE Co.,Ltd. Registration number: Y2020980003105 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211203 Granted publication date: 20160504 Pledgee: China Everbright Bank Zhongshan branch Pledgor: ZHONGSHAN ZHONGHENG ELECTRICAL APPLIANCE CO.,LTD. Registration number: Y2020980003105 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |