CN2457728Y - Hand reset over-temperature power-off protector - Google Patents
Hand reset over-temperature power-off protector Download PDFInfo
- Publication number
- CN2457728Y CN2457728Y CN 00266441 CN00266441U CN2457728Y CN 2457728 Y CN2457728 Y CN 2457728Y CN 00266441 CN00266441 CN 00266441 CN 00266441 U CN00266441 U CN 00266441U CN 2457728 Y CN2457728 Y CN 2457728Y
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- Prior art keywords
- reset
- lever
- temperature
- hand
- protector
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Abstract
The utility model relates to a hand reset over-temperature power-off protector, comprising a casing which is innovatively designed, a thermally-expansible liquid temperature sensing part, a reset operation part, a lever drive part and a circuit switch part. The Hand reset over-temperature power-off protector can realize reliable the function of over-temperature protection by a simplified structural form. The utility model has the advantages of simple structure, low manufacture cost and reliable performance; the utility model can adapt to complex working environment conditions, such as high temperature, high humidity, etc., and can be widely suitable for the over-temperature protection of various high-power electric heating devices.
Description
The utility model relates to a kind of overtemperature protection device, particularly relates to a kind of hand-reset overtemperature power-off protector, and this protector can be cut off the electricity supply when heating-up temperature surpasses set point automatically.
At present, the overtemperature power-off protector of electric heater unit, the employing temperature-sensing element overheat fusion working method that has, fixing a breakdown needs to change temperature-sensing element, complicated operation, cost height; The employing thermistor-type working method that has, it is many that it relates to electronic component, environmental conditions such as temperature, humidity required high, easily reduces the temperature-sensitive precision during environmental condition difference, sometimes also can misoperation; The employing Heat expansion metal temperature-sensitive working method that has, its temperature-sensitive signal transmits difficulty, and the temperature-sensitive precision is low, and temperature-sensitive scope adjustability is poor, and the scope of application is little; The employing thermally-expansible liquid temperature-sensitive working method that has, this design are also outstanding to exist complex structure, manufacturing cost height, is unfavorable for the shortcoming of extensively promoting the use of.
The purpose of this utility model is to overcome the above-mentioned shortcoming of prior art, provides a kind of simple in structure, low cost of manufacture, and dependable performance can adapt to the heat expansion liquid temp sensing type hand-reset overtemperature power-off protection apparatus of various complicated environmental conditions.
For achieving the above object, the utility model hand-reset overtemperature power-off protector comprises housing, temperature-sensitive part, reset operation part, lever running part and contactor part, described temperature-sensitive comprises that partly hollow is communicated with and is filled with temperature-sensing probe, capillary, the circular expander sheet of thermally-expansible liquid, and this circular expander sheet upper and lower side possesses contact respectively; Described contactor partly is the push type self-resetting switch, and this switch comprises the insulating properties button spindle that protrudes from base plate, and circuit disconnected when this insulating properties button spindle was pressed, and automatically resets when unclamping and turning circuit; There is adjustable spacing screw rod the corresponding position of the upper contact head of described housing and this circular expander sheet, and this contact is sleeved on together inside and outside the lower end with spacing screw rod; Described reset operation partly comprises button, connected transmission levers, the shadoof that resets that return spring is housed that is connected with the transmission levers other end; Described lever running part comprises upper lever plate and the following lever plate that is fixed on the base plate, and connection spring therebetween, the end of described upper lever plate possesses the lever by the shadoof operation that resets, and the corresponding position of following contact of upper lever plate and circular expander sheet is near fulcrum; The insulating properties button spindle of described contactor part is corresponding with the part that the following lever plate of described lever running part can lift, and this time lever plate can be pushed this insulating properties button spindle.
As preferably, the adjustable spacing screw rod on the described housing is positioned at the below of the button of reset operation part.
As preferably, the upper lever plate of described lever running part is corresponding with the following contact of circular expander sheet and possess ball bumps near the position of fulcrum.
As preferably, the transmission levers of described reset operation part is flexuose.
As preferably, described push type self-resetting switch has insulation board, porcelain seat under described base plate, the power supply input is housed on the porcelain seat, touches bridge by what back-moving spring supported, this end that touches bridge can be pressed by the transverse slat of insulating properties button spindle bottom, the power supply input with touch bridge and all possess the general electric contact that is used to be coupled to each other.
As preferably, described push type self-resetting switch is a threephase switch.
When the utility model hand-reset overtemperature power-off protector used, the lever plate up and down of lever running part all upwards opened, and the insulating properties button spindle of push type self-resetting switch is upspring circuit turn-on; Its inner thermally-expansible liquid expanded by heating when temperature-sensing probe is heated, the liquid that expands arrives the circular expander sheet by capillary flow, make circular expander sheet distending up and down, thereby pass through the upper lever plate of the following contact extrusion lever running part of expansion piece, this upper lever plate can be extruded to the position that can make down lever plate closed just downwards when reaching design temperature, so following lever plate will protrude from the insulating properties button spindle of the push type self-resetting switch of base plate and push downwards, the contact of touching bridge and power supply input and output terminal is disconnected, thereby realize the purpose of outage; After pending fault is got rid of; press the button of reset operation part; by transmission levers the shadoof that resets is mentioned; the make progress lever of upper lever plate of pull lever running part of this shadoof that resets; the upper lever plate will descend the lever plate pull-up by spring, touch bridge and upspring again under the effect of back-moving spring with position insulating properties button spindle thereon, and the contact of touching on bridge and the power supply input is closed again; thereby make circuit turn-on, realize the overtemperature power-off protection function.
After the utility model hand-reset overtemperature power-off protector adopts technique scheme; can realize above-mentioned purpose ideally; promptly realize reliable overtemperature prote function with the version of simplifying; have simple in structure; low cost of manufacture, dependable performance can adapt to the advantage of complex operating environment conditions such as high temperature, high humidity; described insulating properties button spindle can be pressed three simultaneously and touch bridge, more is applicable to the high-power heater of three-phase.
Accompanying drawing is the structural representation of the utility model overtemperature power-off protector.
Below in conjunction with accompanying drawing the utility model is done further explanation;
Comprise housing 1, temperature-sensitive part, reset operation part, lever running part and contactor part as figure the utility model hand-reset overtemperature power-off protector, described temperature-sensitive comprises that partly hollow is communicated with and is filled with temperature-sensing probe 2, capillary 3, the circular expander sheet 4 of YBR-31 solvent naphtha, these circular expander sheet 4 upper and lower sides possess contact 5 respectively, housing 1 has adjustable spacing screw rod 7 with the upper contact head 5 corresponding positions of this circular expander sheet 4, is sleeved on together inside and outside this contact 5 lower end with spacing screw rod 7; Described contactor partly is the push type self-resetting switch, this switch comprises the insulating properties button spindle 6 that protrudes from base plate 12, circuit disconnected when this insulating properties button spindle 6 was pressed, automatically reset when unclamping and turning circuit, described push type self-resetting switch part has insulation board 17 12 times at described base plate, porcelain seat 18, power supply input 19 is housed on the porcelain seat 18, touch bridge 21 by what back-moving spring 20 supported, this end that touches bridge 21 can be pressed by the transverse slat of insulating properties button spindle 6 bottoms, power supply input 19 with touch bridge 21 and all possess the general electric contact that is used to be coupled to each other; Described reset operation partly comprises button 8, connected zigzag transmission levers 9, the shadoof 11 that resets that return spring 10 is housed that is connected with transmission levers 9 other ends, and the adjustable spacing screw rod 7 on the described housing 1 is positioned at the below of the button 8 of reset operation part; Described lever running part comprises upper lever plate 13 and the following lever plate 14 that is fixed on the base plate 12, and connection spring 15 therebetween, the end of described upper lever plate possesses the lever 16 by shadoof 11 operations that reset, upper lever plate 13 and the close fulcrum in the following contact 5 corresponding positions of circular expander sheet 4, the upper lever plate 13 of described lever running part possesses ball bumps 22 with the position of the following contact of circular expander sheet 45 corresponding and close fulcrums; The insulating properties button spindle 6 of described contactor part is corresponding with the part that the following lever plate 14 of described lever running part can lift, and this time lever plate 14 can be pushed this insulating properties button spindle 6.
Claims (6)
1, a kind of hand-reset overtemperature power-off protector, comprise housing (1), temperature-sensitive part, reset operation part, lever running part and contactor part, described temperature-sensitive comprises that partly hollow is communicated with and is filled with temperature-sensing probe (2), capillary (3), the circular expander sheet (4) of thermally-expansible liquid, and this circular expander sheet (4) upper and lower side possesses contact (5) respectively; Described contactor partly is the push type self-resetting switch, and this switch comprises the insulating properties button spindle (6) that protrudes from base plate (12), and this insulating properties button spindle (6) is the circuit disconnection when pressing, and automatically resets when unclamping and turning circuit; It is characterized in that there is adjustable spacing screw rod (7) the described housing (1) and the corresponding position of upper contact head (5) of circular expander sheet (4), this contact (5) is sleeved on together inside and outside the lower end with spacing screw rod (7); Described reset operation partly comprises button (8), connected transmission levers (9), the shadoof that resets (11) that return spring (10) is housed that is connected with transmission levers (9) other end; Described lever running part comprises upper lever plate (13) and the following lever plate (14) that is fixed on the base plate (12), and connection spring (15) therebetween, the end of described upper lever plate (13) possesses the lever (16) by the shadoof that resets (11) operation, upper lever plate (13) and close its fulcrum in the corresponding position of following contact (5) of circular expander sheet (4); The insulating properties button spindle (6) of described contactor part is corresponding with the part that the following lever plate (14) of described lever running part can lift, and this time lever plate (14) can be pushed this insulating properties button spindle (6).
2, hand-reset overtemperature power-off protector according to claim 1 is characterized in that the adjustable spacing screw rod (7) on the described housing (1) is positioned at the below of the button (8) of reset operation part.
3, hand-reset overtemperature power-off protector according to claim 1 is characterized in that the position of corresponding with the following contact (5) of circular expander sheet (4) and the close fulcrum of upper lever plate (13) of described lever running part possesses ball bumps (22).
4, hand-reset overtemperature power-off protector according to claim 1 is characterized in that the transmission levers (9) of described reset operation part is flexuose.
5, hand-reset overtemperature power-off protector according to claim 1; it is characterized in that described push type self-resetting switch has insulation board (17), porcelain seat (18) under described base plate (12); power supply input (19) is housed on the porcelain seat (18), touches bridge (21) by what back-moving spring (20) supported; this end that touches bridge (21) can be pressed by the transverse slat of insulating properties button spindle (6) bottom, power supply input (19) with touch bridge (21) and all possess the general electric contact that is used to be coupled to each other.
6, hand-reset overtemperature power-off protector according to claim 1 or 5 is characterized in that described push type self-resetting switch is a threephase switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266441 CN2457728Y (en) | 2000-12-27 | 2000-12-27 | Hand reset over-temperature power-off protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00266441 CN2457728Y (en) | 2000-12-27 | 2000-12-27 | Hand reset over-temperature power-off protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2457728Y true CN2457728Y (en) | 2001-10-31 |
Family
ID=33620523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00266441 Expired - Fee Related CN2457728Y (en) | 2000-12-27 | 2000-12-27 | Hand reset over-temperature power-off protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2457728Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672194A (en) * | 2018-04-12 | 2018-10-19 | 曾漳安 | A kind of leatherware production suitcase oiling device |
-
2000
- 2000-12-27 CN CN 00266441 patent/CN2457728Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672194A (en) * | 2018-04-12 | 2018-10-19 | 曾漳安 | A kind of leatherware production suitcase oiling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |