CN2111559U - Hand reset heat trip protector - Google Patents
Hand reset heat trip protector Download PDFInfo
- Publication number
- CN2111559U CN2111559U CN 92203742 CN92203742U CN2111559U CN 2111559 U CN2111559 U CN 2111559U CN 92203742 CN92203742 CN 92203742 CN 92203742 U CN92203742 U CN 92203742U CN 2111559 U CN2111559 U CN 2111559U
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- hand
- reset
- protector
- fixed contact
- contact mechanism
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Abstract
The utility model relates to a manual resetting thermal trip protector, comprising a base body, a thermal trip mechanism arranged in the base body, a movable contact mechanism, a fixed contact mechanism and a manual resetting mechanism. The thermal trip mechanism having a bulged outer surface is connected with a thermal source in the state that an electric appliance works normally, the inner surface of the thermal trip mechanism bulges inversely to push the movable contact mechanism to disengage from the fixed contact mechanism in an overheating state, and the manual resetting mechanism is pressed onto the movable contact mechanism to cause the fixed contact mechanism to contact with the fixed contact mechanism in the state that electric appliance works normally. The manual resetting thermal trip protector has the advantages of easy use, safety, simple and compact structure, low cost, etc. The manual resetting thermal trip protector is suitable for the overheating protection of electric appliances, particularly household appliances.
Description
The utility model relates to the hot dropout protector of a kind of hand-reset, particularly a kind of hot dropout protector of hand-reset that is used for the electrical equipment overtemperature protection.
In the prior art; many household electrical appliance; electric heating appliance has adopted electrothermal tube as heater element; but often for various reasons; make it can not get rational protection; cause heat-generating pipe overheated and burn; even cause security incident; at these phenomenons; adopted many methods to carry out overtemperature protection at present, as common employing cross thermal cut-off as the overtemperature protection element, but facts have proved that this mode uses very inconvenient; if adopt bimetallic disc type thermostat as protection component; but because of its perseveration, get rid of as yet in fault and just to reset, often cause the generation of security incident.Because the restriction of the kind of protection component, to so far, many household electrical appliance fail to satisfy the requirement that the heat in the GB4706 standard is threaded off and protected all the time aspect overtemperature protection.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and provides a kind of easy to use, safe, the hot dropout protector of hand-reset simple and compact for structure, that reliability is high, with low cost.
The purpose of this utility model can reach by following measure: structurally be made of pedestal, the thermal tripping mechanism, moving contact mechanism, fixed contact mechanism and the hand-reset mechanism that are installed in the pedestal, thermal tripping mechanism when the electrical equipment normal operating conditions convex outer surfaces and thermal source joins, during in superheat state inner surface oppositely projection promote the active force that moving contact mechanism overcomes hand-reset mechanism and break away from fixed contact mechanism, hand-reset mechanism when the electrical equipment normal operating conditions, press to moving contact mechanism make it with fixed contact mechanism to contacting.Its operation principle is that temperature sharply rises when the electrical heating element is in abnormal condition work, when surpassing certain value, the thermal tripping mechanism stress flexural deformation of being heated, promote moving contact mechanism and break away from fixed contact mechanism, cut off the power supply of heater element, because outage, temperature of heating elements descends, during near certain value, thermal tripping mechanism still keeps remember condition, no longer resets, so circuit from overheated dropout, remains power-off condition; Only after electrical equipment being carried out safety inspection and getting rid of fault, thermal tripping mechanism is resetted, make electrical equipment energized once more, enter normal operating conditions again by hand-reset mechanism.Thereby protected heater element effectively really, protected the electrical equipment operate as normal, guaranteed user's the security of the lives and property.
The purpose of this utility model can also reach by following measure: the thermal tripping mechanism of the hot dropout protector of hand-reset is made of the flick diaphragm of the pedestal epicoele of packing into.With the stable state of guaranteeing reliable cut-out power to be provided and to keep cut-out or reset.
The utility model is described in further detail to utilize accompanying drawing:
Fig. 1 is the structural representation of the hot dropout protector of a kind of hand-reset of the present utility model;
Fig. 2 is the structural representation of the hot dropout protector of the hand-reset of Fig. 1 at overheated trip status;
Fig. 3 is the hot dropout protector of the hand-reset of Fig. 1 at the fix a breakdown structural representation of reset mode of wait.
Fig. 1 has shown a kind of hand reset heat trip protector of the present utility model in the structure of electrical equipment normal operating conditions, is provided with temperature-sensitive element (1), bistable state memory cell (2), push rod (3), movable contact spring (4), fixed contact (5), movable contact (6), joint Terminal (7,8), hand-reset key (9) and back-moving spring (10) in pedestal.
Fig. 2 shows that this hand reset heat trip protector cuts off the template structure of circuit in the electrical equipment superheat state; temperature-sensitive element this moment (1) oppositely projection, simultaneously promote bistable state memory cell (2) action, promote push rod (3) and make movable contact spring (4) drive movable contact (6) to break away from fixed contact (5), thereby cut off the electricity supply.
Fig. 3 shows that this hand reset heat trip protector is after the electrical equipment cooling of cutting off the electricity supply; wait is fixed a breakdown, the structure of reset mode; temperature-sensitive element this moment (1) resets; and bistable state memory cell (2) still keeps the state of cutting off the electricity supply; only hand-reset after fixing a breakdown, bistable state memory cell (2) just can reset and remember the normal operating conditions as shown in Figure 1.
The utility model is described in further detail to utilize following examples:
The hot dropout protector of a kind of hand-reset of the present utility model as shown in Figure 1, its fixed contact mechanism is made of fixed contact that is contained in the pedestal cavity of resorption (5) and the joint Terminal (7,8) that is attached thereto.
The hot dropout protector of a kind of hand-reset of the present utility model as shown in Figure 1; its moving contact mechanism can be by push rod (3); movable contact spring (4) and moving contact (6) constitute; moving contact (6) is arranged on the position of the corresponding fixed contact mechanism contacts of movable contact spring (4); push rod (3) is connected with movable contact spring (4); and the through hole that passes between pedestal cavity of resorption and the epicoele enters epicoele, push rod when superheat state (3) transmit thermal tripping mechanism oppositely the thrust of projection promote the active force that movable contact spring (4) overcomes hand-reset mechanism; moving contact (6) and fixed contact mechanism are broken away from.
The hot dropout protector of a kind of hand-reset of the present utility model as shown in Figure 1; its moving contact mechanism is made of hand-reset key (9) and back-moving spring (10); hand-reset key (9) one ends are pressed to moving contact mechanism by dress back-moving spring (10) thereon, and the other end passes the pedestal through hole outside pedestal.
The hot dropout protector of a kind of hand-reset of the present utility model as shown in Figure 1, its thermal tripping mechanism can be to be made of double-deck flick diaphragm.This bilayer flick diaphragm can also be that outer flick diaphragm is temperature-sensitive element (1), and the internal layer flick diaphragm is bistable state memory cell (2).Can also select individual layer bistable state memory cell for use, the bistable state memory cell is generally shape memory metal or thermosensitive bimetal.
The characteristics such as the utility model compared with prior art has esy to use, safe and reliable, and is simple and compact for structure, with low cost. Be applicable to the overtemperature protection of electrical equipment, particularly household electrical appliance, can satisfy the requirement of hot dropout protective provisions in the GB4706 standard.
Claims (7)
1, the hot dropout protector of a kind of hand-reset; it is characterized in that the hot dropout protector of this hand-reset is made of pedestal, the thermal tripping mechanism, moving contact mechanism, fixed contact mechanism and the hand-reset mechanism that are installed in the pedestal; thermal tripping mechanism when the electrical equipment normal operating conditions convex outer surfaces and thermal source joins, during in superheat state inner surface oppositely projection promote the active force that moving contact mechanism overcomes hand-reset mechanism and break away from fixed contact mechanism, hand-reset mechanism when the electrical equipment normal operating conditions, press to moving contact mechanism make it with fixed contact mechanism to contacting.
2, the hot dropout protector of hand-reset according to claim 1 is characterized in that said thermal tripping mechanism is made of the flick diaphragm of the pedestal epicoele of packing into.
3, the hot dropout protector of hand-reset according to claim 1 and 2 is characterized in that said fixed contact mechanism is made of fixed contact that is contained in the pedestal cavity of resorption (5) and the joint Terminal (7,8) that is attached thereto.
4; the hot dropout protector of hand-reset according to claim 1 and 2; it is characterized in that said moving contact mechanism is by push rod (3); movable contact spring (4) and moving contact (6) constitute; moving contact (6) is arranged on the position of the corresponding fixed contact mechanism contacts of movable contact spring (4); push rod (3) is connected with movable contact spring (4); and the through hole that passes between pedestal cavity of resorption and the epicoele enters epicoele, push rod when superheat state (3) transmit thermal tripping mechanism oppositely the thrust of projection promote the active force that movable contact spring (4) overcomes hand-reset mechanism; moving contact (6) and fixed contact mechanism are broken away from.
5, the hot dropout protector of hand-reset according to claim 1 and 2; it is characterized in that said hand-reset mechanism is made of hand-reset key (9) and back-moving spring (10); hand-reset key (9) one ends are pressed to moving contact mechanism by dress back-moving spring (10) thereon, and the other end passes the pedestal through hole outside pedestal.
6, the hot dropout protector of hand-reset according to claim 2 is characterized in that said thermal tripping mechanism is made of double-deck flick diaphragm.
7, the hot dropout protector of hand-reset according to claim 6, the outer flick diaphragm that it is characterized in that said thermal tripping mechanism is temperature-sensitive element (1), the internal layer flick diaphragm is bistable state memory cell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92203742 CN2111559U (en) | 1992-03-12 | 1992-03-12 | Hand reset heat trip protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92203742 CN2111559U (en) | 1992-03-12 | 1992-03-12 | Hand reset heat trip protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2111559U true CN2111559U (en) | 1992-07-29 |
Family
ID=4950304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92203742 Granted CN2111559U (en) | 1992-03-12 | 1992-03-12 | Hand reset heat trip protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2111559U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494134A (en) * | 2008-01-21 | 2009-07-29 | 内桥艾斯泰克股份有限公司 | Protective element |
| CN105719904A (en) * | 2016-04-22 | 2016-06-29 | 佛山市富乐喜电子信息技术有限公司 | Compactly-assembled temperature controller |
| CN105719903A (en) * | 2016-04-22 | 2016-06-29 | 佛山市富乐喜电子信息技术有限公司 | Compact outage reset temperature controller |
-
1992
- 1992-03-12 CN CN 92203742 patent/CN2111559U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494134A (en) * | 2008-01-21 | 2009-07-29 | 内桥艾斯泰克股份有限公司 | Protective element |
| CN101494134B (en) * | 2008-01-21 | 2013-07-03 | 内桥艾斯泰克股份有限公司 | Protective element |
| CN105719904A (en) * | 2016-04-22 | 2016-06-29 | 佛山市富乐喜电子信息技术有限公司 | Compactly-assembled temperature controller |
| CN105719903A (en) * | 2016-04-22 | 2016-06-29 | 佛山市富乐喜电子信息技术有限公司 | Compact outage reset temperature controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |