CN2624763Y - Safety protector for electric heating container - Google Patents
Safety protector for electric heating container Download PDFInfo
- Publication number
- CN2624763Y CN2624763Y CNU032313276U CN03231327U CN2624763Y CN 2624763 Y CN2624763 Y CN 2624763Y CN U032313276 U CNU032313276 U CN U032313276U CN 03231327 U CN03231327 U CN 03231327U CN 2624763 Y CN2624763 Y CN 2624763Y
- Authority
- CN
- China
- Prior art keywords
- temperature
- sensitive element
- electric heating
- contact mechanism
- casing
- 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.)
- Expired - Lifetime
Links
- 238000005485 electric heating Methods 0.000 title claims description 22
- 230000001012 protector Effects 0.000 title 1
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 3
- 239000012212 insulator Substances 0.000 abstract 5
- 229920003266 Leaf® Polymers 0.000 description 17
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
- H05B1/0216—Switches actuated by the expansion of a solid element, e.g. wire or rod
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/521—Thermally-sensitive members actuated due to deflection of bimetallic element comprising a plurality of bimetals acting in the same direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
- H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cookers (AREA)
- Thermally Actuated Switches (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a safety protection device of an electric heat container, which comprises a casing, a thermosensitive element arranged outside the casing, a contact mechanism and an insulator spindle arranged in the casing. The inner end of the insulator spindle is against the movable contact piece in the contact mechanism, and the outer end of the insulator spindle is against with the active end of the thermosensitive element. The utility model is characterized in that the casing has a sealed structure, the outer end of the insulator spindle stretches out the corresponding eyelet of the casing and is against with the active end of the thermosensitive element, and the static contact piece of the contact mechanism stretches out of the corresponding hole of the casing and plays the role of an electric connecting piece. The thermosensitive elements, the contact mechanism and the insulator spindle are preferably two groups, and the two thermosensitive elements is preferably provided with different sensitive temperatures. The utility model has the advantages that the structure of the casing is a sealed structure, thereby the utility model can stably work under the adverse circumstances like the circumstances full of wet and salt, etc, and can be easily admitted by the kitchen electric appliance product salt-fog test of the IEC standard. Two thermosensitive elements with different sensitive temperatures are adopted to make the two thermosensitive elements work orderly and are perfectly cooperated, and the service life of the whole safety protection device is thus imperceptibly enhanced.
Description
Technical field
The utility model relates to a kind of recloser of electric calorifie installation, particularly a kind of safety guard that is used for electric heating vessels such as electric cup, electric kettle and coffee pot.
Background technology
In electric heating vessels such as existing electric cup, electric kettle and coffee pot, generally be provided with safety guard at bottom position, its effect is overheated, the empty burning or dry combustion method equitemperature when raising unusually to occur at electric heating vessel, the power circuit of automatic disconnection electric heating vessel is to prevent that burning utensil jeopardizes safety; Its structure is had nothing in common with each other; but constitute by temperature-sensitive element, action transmission mechanism and contact mechanism mostly; temperature-sensitive element has most employing bimetal leaf; also have and adopt memory metal, plastic cement hot melt or low-melting alloy; unusual rising by the temperature-sensitive element sense temperature is moved; and impel contact mechanism to disconnect by the action transmission mechanism, finally reach the purpose of cutting off the electricity supply, realize overtemperature protection.The safety guard of present various electric heating vessels exists such shortcoming; the one, electric contact is communicated with atmosphere with brace; can't be by the salt mist test of kitchen appliance product in the IEC standard; its reason is higher or have in the environment of salt fog in humidity; the easy causing erosion of electric contact and brace; thereby influence electric conductivity, serious also can cause overheated burnout failure because of electric conductivity is bad.The 2nd, for the safety guard that only adopts a temperature-sensitive element; can only the perception electric heating vessel the locational temperature anomaly in bottom; if and electric heating vessel inadvertently is placed in and causes its bottom angled on the working surface; it just may still have water cover to live because of the part of this container bottom; but other part is not covered and is boiled dry; if temperature-sensitive element is configured in the zone of water just; then therefore it can not move; this moment, the seriously overheated of part then can take place in anhydrous zone, thereby caused potential safety hazard.For this reason, publication number be CN1294894A's " thermally-responsive controls of water-boiling vessel " a solution is provided: " a kind of heat sensitive overheat protective controller assemblies of integral body; be used for being installed in the mode of thermo-contact the bottom of the water container of a water-boiling vessel, it comprises: the control body of a molding; The a pair of temperature-sensitive spaced apart from each other overtemperature protection bimetallic actuator that can reset, be installed in position spaced apart from each other on face of control body, so that in use the good thermo-contact that equates is arranged with described bottom, and the heater of vessel owing to vessel anhydrous but switch connection or poach do to produce and can operate when overheated, but then do not operate when to boil water in that vessel are normal; Two are mounted on the make and break contact of control body, and every group interrelates with a corresponding actuator, when this actuator running, can open it, thus the power supply of cut-out vessel heater; Described two actuators operate under essentially identical temperature." wherein two actuators are temperature-sensitive element; by its requirement; as adopting bimetal leaf; then need choose the bimetal leaf of two identical sensitive temperatures, and this can cause another problem, promptly these two bimetal leafs will move under common overheated situation simultaneously; have roughly the same fatigability; in case one of them bimetal leaf lost efficacy, another bimetal leaf also can lose efficacy simultaneously, can't play mutually remedy, auxiliary effect mutually.
Summary of the invention
First technical problem to be solved in the utility model is to provide a kind of can be in humidity higher or have a safety guard of the electric heating vessel of operate as normal under the adverse circumstances such as salt fog at above-mentioned prior art present situation.
Second technical problem to be solved in the utility model provide a kind of have two temperature-sensitive elements and have mutually remedy, the safety guard of the electric heating vessel of ilities.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the safety guard of this electric heating vessel comprises housing; be arranged on the outer temperature-sensitive element of housing; be arranged on contact mechanism and insulating bar in the housing; push up mutually with movable contact spring in the contact mechanism the inner of insulating bar; the outer end is relative with the motion end of temperature-sensitive element; it is characterized in that described housing is closed structure; it is relative with the motion end of temperature-sensitive element that the outer end of described insulating bar then passes the aperture of housing on correspondence position, and the static contact in the described contact mechanism passes the hole of housing on correspondence position as electric connecting sheet.
Described housing can be made of pedestal with cavity and covering and the loam cake that is sealed in its peristome; At this moment, described contact mechanism, insulating bar are arranged in the cavity of pedestal, and described temperature-sensitive element then is arranged on the loam cake, and it is relative with the motion end of temperature-sensitive element that the outer end of described insulating bar then passes the aperture of loam cake on correspondence position.
In order to prevent to cause partial melting, damage because of housing and electric heating vessel directly contact, can be at the installing rack of described loam cake external fixation one metal material, at this moment, described temperature-sensitive element is arranged on this metal installing rack.
Described temperature-sensitive element, contact mechanism and insulating bar can have only one group, also can be more than two groups or two groups.When adopting two groups of temperature-sensitive elements, contact mechanism and insulating bar, it is good that described two temperature-sensitive elements have different sensitive temperatures.So that when wherein having when losing efficacy than the temperature-sensitive element of muting sensitive temperature-sensitive degree, another temperature-sensitive element with higher sensitive temperature still can work, as remedying.
Described temperature-sensitive element can adopt bimetal leaf or memory metal sheet, also can adopt other materials.
Compared with prior art, advantage of the present utility model is that housing is closed structure, only there are appearance insulating bar outer end aperture that passes through and the installing hole that the appearance static contact passes few, intimate negligible the connection to be arranged with the external world, thereby can be in humidity higher or have under the adverse circumstances such as salt fog and work reliably, can be like a cork salt mist test by kitchen appliance product in the IEC standard.And adopt two temperature-sensitive elements with different sensitive temperatures, and their actions when work are had back, primary and secondary combination earlier, thus the useful life of having improved whole safety guard virtually.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of the utility model embodiment.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, for adopting the embodiment of two groups of temperature-sensitive elements, contact mechanism and insulating bars, include housing 11, be arranged on the outer metal installing rack 4 of housing 1 and temperature-sensitive element 2,2 ', be arranged on contact mechanism in the housing and insulating bar 3,3 ';
Housing 1 is made of pedestal 11 with cavity and the loam cake 12 that covers and be sealed in its peristome;
Described metal installing rack 4 by screw on loam cake 12, and except the screw hole, also have on it some be used for electric heating vessel in heat-conducting plate 6 or the installing hole 41 that fixes of housing;
Described temperature-sensitive element 2,2 ' employing bimetal leaf, and have different sensitive temperatures is fixed on the described metal installing rack and is and is symmetrical arranged;
Described contact mechanism is arranged in the cavity of pedestal 11, include two groups of movable contact springs 52,52 ', static contact 51,51 ', respectively with described two bimetal leafs 2,2 ' relative, and be and be symmetrical arranged, wherein static contact 51,51 ' the outer end pass pedestal 11 as electric connecting sheet;
Described insulating bar also be two 3,3 ', be arranged in the cavity of pedestal 11, respectively with described two bimetal leafs 2,2 ' and corresponding movable contact spring 52,52 ' corresponding, its the inner respectively with corresponding movable contact spring 52,52 ' mutually tops, its outer end then passes the motion end 21,21 of loam cake 12 and the aperture of metal installing rack 4 on correspondence position and corresponding bimetal leaf ' relative respectively;
Under normal conditions, movable contact spring 52,52 in the contact mechanism ' with static contact 51,51 ' be by movable contact spring 52,52 ' the pressure that forms of elasticity and closely contact, when heat-conducting plate 6 temperature anomalies of electric heating vessel raise, has bimetal leaf 2,2 ' along with heat-conducting plate 6 temperature raise and are out of shape, wherein having motion end 21 than the bimetal leaf 2 of muting sensitive temperature-sensitive degree at first moves and presses to insulating bar 3, insulating bar 3 backs down corresponding movable contact spring 52 breaks away from and the contacting of static contact 51 it, thereby cuts off the electricity supply; And when temperature descends, bimetal leaf 2 restores, its motion end 21 leaves insulating bar 3, insulating bar 3 is at the elastic-restoring force effect of movable contact spring 52 original position next time, at this moment, movable contact spring 52 reverts to tight contact condition, energized with static contact 51, so realize the control temperature, prevent the generation of dry combustion method accident.
In case and bimetal leaf 2 lost efficacy, then when temperature continuation rising, have the bimetal leaf 2 of higher sensitive temperature ' the action of motion end 21 ' at first press to insulating bar 3 ', the corresponding movable contact spring 52 of insulating bar 3 ' back down ' make its break away from static contact 51 ' contact, thereby also can cut off the electricity supply.And similarly, when temperature descends, bimetal leaf 2 ' recovery, its motion end 21 ' leave insulating bar 3 ', insulating bar 3 ' movable contact spring 52 ' elastic-restoring force effect original position next time, at this moment, movable contact spring 52 ' with the tight contact condition of static contact 51 ' revert to, energized, thus play the effect of remedying.
Claims (7)
1, a kind of safety guard of electric heating vessel; comprise housing, be arranged on the outer temperature-sensitive element of housing, be arranged on contact mechanism and insulating bar in the housing; push up mutually with movable contact spring in the contact mechanism the inner of insulating bar; the outer end is relative with the motion end of temperature-sensitive element; it is characterized in that described housing is closed structure; it is relative with the motion end of temperature-sensitive element that the outer end of described insulating bar then passes the aperture of housing on correspondence position, and the static contact in the described contact mechanism passes the hole of housing on correspondence position as electric connecting sheet.
2, the safety guard of electric heating vessel according to claim 1 is characterized in that described housing is made of pedestal with cavity and covering and the loam cake that is sealed in its peristome.
3, the safety guard of electric heating vessel according to claim 2; it is characterized in that described contact mechanism, insulating bar are arranged in the cavity of pedestal; described temperature-sensitive element then is arranged on the loam cake, and it is relative with the motion end of temperature-sensitive element that the outer end of described insulating bar then passes the aperture of loam cake on correspondence position.
4, the safety guard of electric heating vessel according to claim 2; it is characterized in that having the installing rack of a metal material at described loam cake external fixation; described temperature-sensitive element is arranged on this metal installing rack, and the outer end of described insulating bar then passes loam cake and the aperture of installing rack on correspondence position is relative with the motion end of temperature-sensitive element.
5,, it is characterized in that described temperature-sensitive element, contact mechanism and insulating bar have only one group according to the safety guard of the described electric heating vessel of arbitrary claim in the claim 1 to 4.
6,, it is characterized in that described temperature-sensitive element, contact mechanism and insulating bar have two groups, and described two temperature-sensitive elements have different sensitive temperatures according to the safety guard of the described electric heating vessel of arbitrary claim in the claim 1 to 4.
7,, it is characterized in that described temperature-sensitive element is bimetal leaf or memory metal sheet according to the safety guard of the described electric heating vessel of arbitrary claim in the claim 1 to 4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032313276U CN2624763Y (en) | 2003-05-15 | 2003-05-15 | Safety protector for electric heating container |
| DE20320019U DE20320019U1 (en) | 2003-05-15 | 2003-12-24 | Protective switching device for electrically heated products has a disc that acts as a heat sensor and deforms to open contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032313276U CN2624763Y (en) | 2003-05-15 | 2003-05-15 | Safety protector for electric heating container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2624763Y true CN2624763Y (en) | 2004-07-14 |
Family
ID=32182028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032313276U Expired - Lifetime CN2624763Y (en) | 2003-05-15 | 2003-05-15 | Safety protector for electric heating container |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN2624763Y (en) |
| DE (1) | DE20320019U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456507A (en) * | 2010-10-25 | 2012-05-16 | 何爱嫣 | Temperature controller |
| CN103235609A (en) * | 2013-03-29 | 2013-08-07 | 浙江达威电子有限公司 | Controller with multi-level protection function for liquid heating container |
| CN107240529A (en) * | 2017-06-30 | 2017-10-10 | 扬州五岳电器有限公司 | A kind of motor Hand-reset thermal protector |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630607B (en) * | 2008-07-19 | 2012-04-25 | 浙江家泰电器制造有限公司 | Liquid heating ware overheating protection controller assembly |
| CN101629758B (en) * | 2008-07-19 | 2012-09-26 | 浙江家泰电器制造有限公司 | Liquid heating ware overheating protection controller assembly |
-
2003
- 2003-05-15 CN CNU032313276U patent/CN2624763Y/en not_active Expired - Lifetime
- 2003-12-24 DE DE20320019U patent/DE20320019U1/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102456507A (en) * | 2010-10-25 | 2012-05-16 | 何爱嫣 | Temperature controller |
| CN103235609A (en) * | 2013-03-29 | 2013-08-07 | 浙江达威电子有限公司 | Controller with multi-level protection function for liquid heating container |
| CN107240529A (en) * | 2017-06-30 | 2017-10-10 | 扬州五岳电器有限公司 | A kind of motor Hand-reset thermal protector |
Also Published As
| Publication number | Publication date |
|---|---|
| DE20320019U1 (en) | 2004-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO SHENGLAIDA ELECTRICAL APPLIANCES CO., LTD. Free format text: FORMER OWNER: YANG NINGEN Effective date: 20081010 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081010 Address after: No. 515, Chong Kang South Road, Zhuang Qiao Town, Jiangbei District, Zhejiang, Ningbo: 315032 Patentee after: Ningbo Sunlight Electrical Appliance Co., Ltd. Address before: Song Zhao Qiao Industrial Zone of Yinzhou Zhejiang central district city of Ningbo province Ningbo shenglida Electric Manufacturing Co., Ltd., zip code: 315192 Patentee before: Yang Ningen |
|
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO SHENGLAIDA ELECTRICAL CO., LTD. Free format text: FORMER NAME: NINGBO SHENGLAIDA ELECTRICAL APPLIANCES CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 515, Kang Zhuang Nan Lu, Jiangbei District, Zhejiang, Ningbo: 315032 Patentee after: Ningbo Sunlight Electrical Appliance Co., Ltd. Address before: No. 515, Chong Kang South Road, Zhuang Qiao Town, Jiangbei District, Zhejiang, Ningbo: 315032 Patentee before: Ningbo Sunlight Electrical Appliance Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130515 Granted publication date: 20040714 |