CN202820911U - Electrical pressure cooker with pressure limiting power off function - Google Patents
Electrical pressure cooker with pressure limiting power off function Download PDFInfo
- Publication number
- CN202820911U CN202820911U CN201220446543.2U CN201220446543U CN202820911U CN 202820911 U CN202820911 U CN 202820911U CN 201220446543 U CN201220446543 U CN 201220446543U CN 202820911 U CN202820911 U CN 202820911U
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- movable contact
- binding post
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Abstract
An electrical pressure cooker with a pressure limiting power off function comprises a pot cover, a sealing ring, an inner pot, an outer pot, a heater, a pressure control device and a heating circuit. The sealing ring is arranged between the pot cover and the inner pot which is arranged in the outer pot. The electrical pressure cooker with the pressure limiting power off function is characterized in that the pot cover is provided with a pressure limiting protective device which comprises an outer shell, a switch and an elastic mechanism, wherein the switch is connected with the heater in series and the elastic mechanism is capable of sensing pressure inside the inner pot and driving the switch to be switched off. The elastic mechanism comprises a pushing rod, an elastic body and a sliding cavity which is arranged on the outer shell of the pressure limiting protective device. The pushing rod and the elastic body are arranged in the sliding cavity. The pushing rod is arranged corresponding to the switch and slides in the sliding cavity by overcoming resistance of the elastic body and enables the switch to be switched off. When the electrical pressure cooker works abnormally, the pressure control device is not capable of normally shut down the heating circuit and the pressure in the electrical pressure cooker is increased, the switch which is connected with the heater in series is switched off through the elastic mechanism, and then the heater stops heating, and thereby using safety of the electrical pressure cooker is guaranteed.
Description
Technical field
The utility model relates to electric pressure cooking saucepan, and especially a kind of electric pressure cooking saucepan with pressure limiting power down function belongs to the improvement technology that has electric pressure cooking saucepan now.
Background technology
It is the break-make realization of controlling heater circuit by pressure control device that the pressure of existing most of electric pressure cooking saucepans is controlled, but when the electric pressure cooking saucepan operation irregularity, for example: pressure control device lost efficacy, heating element heater will be in the energising heated condition always, when pot inner pressure reaches the operating pressure of setting, its pressure can continue to increase, temperature raises, and has potential safety hazard; Therefore, a lot of electric pressure cooking saucepans are equipped with the pressure relief devices such as pressure limiting valve, safety valve, and this type of pressure release safety device does not all link to each other with control circuit, and heating element heater still is in the energising heated condition in pressure release, has the potential safety hazards such as dry combustion method, also wastes energy; When pressure relief device also lost efficacy, because heating element heater is in the energising heated condition always, pot inner pressure will continue to rise, if can not in time cut off the electricity supply, have very large potential safety hazard.
Summary of the invention
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of electric pressure cooking saucepan with pressure limiting power down function is provided.
The technical scheme that realizes the utility model purpose is: a kind of electric pressure cooking saucepan with pressure limiting power down function, comprise pot cover, sealing ring, interior pot, outer pot, heater, pressure control device and heater circuit, described sealing ring places between described pot cover and the interior pot, described interior pot places in the described outer pot, it is characterized in that, pot cover is provided with voltage-limiting protector, and described voltage-limiting protector comprises shell, the switch of connecting with described heater and can respond to the elastic mechanism that described interior pot internal pressure disconnects to drive described switch; Described elastic mechanism comprises push rod, elastomer and is located at sliding chamber on the described voltage-limiting protector shell; described push rod and elastomer are positioned at described sliding chamber; the corresponding described switch setting of described push rod, and in described sliding chamber, overcome described elastomeric resistance and slide to drive described switch and disconnect.
Described switch comprises the first binding post, the second binding post, movable contact spring and extension spring; Described movable contact spring one end and described the first binding post are hinged, and the other end can contact with described the second binding post or disconnect, and described extension spring one end is fixed on described the first binding post, and the other end is fixed on the described movable contact spring.
Also comprise on the described switch and can drive the SR that described movable contact spring and described the second binding post resume contacts.
Also be provided with movable contact on the described movable contact spring, on the position of corresponding movable contact stationary contact be set on described the second binding post, movable contact cooperates with stationary contact, the conductive characteristic when improving movable contact spring and contacting with the second binding post.
Described elastomer is spring or nitrogen.
Be provided with sealing ring between described sliding chamber and the push rod, prevent that the high steam in the pot from revealing, affect the culinary art effect of electric pressure cooking saucepan, avoided simultaneously steam to enter switch and caused apparatus failure.
Cut-off switch when described elastic mechanism is 130KPa～250KPa in described interior pot internal pressure.
Cut-off switch when described elastic mechanism is 140KPa～220KPa in described interior pot internal pressure.
Operation principle of the present utility model is, during the electric pressure cooking saucepan operation irregularity, when pot inner pressure reaches the operating pressure of setting, pressure control device can not normally disconnect heater circuit, heater works on, and pot inner pressure continues to rise, when pot inner pressure is higher than the opening pressure of described switch setting, switch disconnects, the heater stopped heating.
The utility model compared with prior art, its beneficial effect is, the voltage-limiting protector of can the perception pot inner pressure and connecting with heater is set at pot cover, when the electric pressure cooking saucepan operation irregularity, pressure control device can not normally disconnect heater circuit, and when pot inner pressure increased, the switch that will connect with heater by elastic mechanism disconnected, make the heater stopped heating, guarantee the use safety of electric pressure cooking saucepan; And only after fault is got rid of by pressing SR, just can make switch connection by hand-reset, improved the security that electric pressure cooking saucepan uses.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 switch connection state of the present utility model;
Fig. 2 is the structural representation of embodiment 1 switch off state of the present utility model;
Fig. 3 is the voltage-limiting protector structural representation of embodiment 1 switch connection state of the present utility model;
Fig. 4 is the structural representation of embodiment 2 switch connection states of the present utility model;
Fig. 5 is the structural representation of embodiment 2 switch off state of the present utility model;
Fig. 6 is the voltage-limiting protector structural representation of embodiment 2 switch connection states of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Embodiment 1:
As shown in Figure 1 and Figure 2, a kind of electric pressure cooking saucepan with pressure limiting power down function, comprise pot cover 1, sealing ring 2, interior pot 3, outer pot 4, heater 5, pressure control device and heater circuit, interior pot 3 places in the outer pot 4, sealing ring 2 places between pot cover 1 and the interior pot 3, pot cover 1, sealing ring 2, interior pot 3 consist of the closed cavity of heating cooking food, and heater 5 places the position between interior pot 3 bottoms and the outer pot 4.Pot cover 1 is provided with voltage-limiting protector; voltage-limiting protector comprises shell 8, switch 6 and elastic mechanism 7; switch 6 is connected with heater 5; voltage-limiting protector shell 8 is provided with sliding chamber 81, and elastic mechanism 7 comprises push rod 71 and spring 72, and push rod 71 and spring 72 are positioned at sliding chamber 81; push rod 71 is inverted T-shaped; spring 72 is enclosed within on the push rod 71, and 71 pairs of inductive switch of push rod 6 arrange thereunder, and push rod 71 can overcome the elastic force slip of spring 72 and drive described switch 6 disconnections in sliding chamber 81.
When switch 6 disconnects, heater 5 stopped heatings; Elastic mechanism 7 energy induction kettle internal pressures, when pot inner pressure reached the safe pressure of setting, elastic mechanism 7 can disconnect by driving switch 6, makes heater 5 stopped heatings.
As shown in Figure 3; switch 6 comprises the first binding post 61, the second binding post 62, movable contact spring 63 and extension spring 64; the shell 8 of voltage-limiting protector is provided with draw-in groove; binding post 61,62 is installed in the draw-in groove; movable contact spring 63 1 ends and the first binding post 61 are hinged by hinge 65; the other end can contact with the second binding post 62 or disconnect; extension spring 64 1 ends are fixed on the first binding post 61; the other end is fixed on the movable contact spring 63, and movable contact spring 63 can remain on the position that contacts or disconnect with the second binding post 62 under the effect of extension spring 64.
Also be provided with movable contact 631 on the above-mentioned movable contact spring 63, cooperate with the stationary contact 621 that arranges on the second binding post 62, the conductive characteristic when improving movable contact spring 63 and contacting with the second binding post 62.
Also be provided with the SR 66 that movable contact spring 63 and the second binding post 62 are resumed contacts on the switch 6, when movable contact spring 63 remains on the position that disconnects with the second binding post 62 under the effect of extension spring 64, press SR 66, SR 66 drives movable contact spring 63 and turns to the position that contacts with the second binding post 62 around hinge 65, movable contact spring 63 remains on this position under the effect of extension spring 64, movable contact 631 contacts with stationary contact 621, realizes the conducting of switch 6.
Above-mentioned push rod 71 overcomes the elastic force slip of spring 72 and drives described switch 6 when disconnecting in sliding chamber 81, be that movable contact spring 63 and the second binding post 62 are disconnected.
In the present embodiment, pot cover 1 fastens with interior pot 3, and pot cover 1 is provided with the temperature element that detects kettle temperature, and is not shown, and pressure control device is judged the pressure in the pot, the duty of control heater 5 by the temperature in the temperature element perception pot.
In the present embodiment, when pot inner pressure was 140KPa～220KPa, push rod 71 promoted movable contact springs 63 cut-off switch 6, and when pot inner pressure reached 70KPa under the normal operating conditions, pressure control device will disconnect heater circuit.
When electric pressure cooking saucepan works, when as long as the pressure in the pot reaches the operating pressure 70KPa that sets when disconnecting heater circuit, the heater circuit that pressure control device is about to heater 5 disconnects, and the pressure in this moment pot does not reach elastic mechanism 7 and makes switch 6 disconnect corresponding pressure, therefore, switch 6 can not disconnect, and can guarantee that the normal operation of electric pressure cooking saucepan is unaffected; Occur in the unusual situation in electric pressure cooking saucepan work, when the pressure in the pot reaches pressure control device and disconnects the pressure that heater circuit sets, the heater circuit of heater 5 does not still disconnect, pot inner pressure then occurring continues to raise, when pressure is elevated to elastic mechanism 7 and makes switch 6 disconnect corresponding pressure, push rod 71 in the elastic mechanism 7 namely can make switch 6 disconnect, disconnect the heater circuit of heater 5, thereby the work of stopped heating device 6, be unlikely to because kettle temperature and pressure anomaly raise the user to be damaged, security reliability is high; After switch 6 disconnects, movable contact spring 63 remains on the position that disconnects with the second binding post 62 under the effect of extension spring 64, even after pot inner pressure descended, switch 6 can not automatically reset yet, only rear by pressing SR 66 in the fault eliminating, by hand-reset switch 6 is connected.
Embodiment 2:
Such as Fig. 4, shown in Figure 5, the difference of present embodiment and embodiment 1 is, pot cover 1 fastens with outer pot 4, pot 3 pressure control devices to bottom offset in outer pot 4 bottoms are provided with and detect, pressure control device is by the downward displacement size of pot in detecting, judge the pressure in the pot, the duty of control heater 5.
As shown in Figure 6, another some difference of present embodiment and embodiment 1 is that the elastomer 72 in the elastic mechanism 7 is for being sealed in the nitrogen between sliding chamber 81 and the push rod 71.
Claims (8)
1. electric pressure cooking saucepan with pressure limiting power down function, comprise pot cover, sealing ring, interior pot, outer pot, heater, pressure control device and heater circuit, described sealing ring places between described pot cover and the described interior pot, described interior pot places in the described outer pot, it is characterized in that: be provided with voltage-limiting protector at described pot cover, described voltage-limiting protector comprises shell, the switch of connecting with described heater and can respond to described interior pot internal pressure and drive the elastic mechanism that described switch disconnects; Described elastic mechanism comprises push rod, elastomer and is located at sliding chamber on the described voltage-limiting protector shell; described push rod and elastomer are positioned at described sliding chamber; the corresponding described switch setting of described push rod, and in described sliding chamber, overcome described elastomeric resistance and slide to drive described switch and disconnect.
2. the electric pressure cooking saucepan with pressure limiting power down function according to claim 1, it is characterized in that: described switch comprises the first binding post, the second binding post, movable contact spring and extension spring; Described movable contact spring one end and described the first binding post are hinged, and the other end can contact with described the second binding post or disconnect, and described extension spring one end is fixed on described the first binding post, and the other end is fixed on the described movable contact spring.
3. the electric pressure cooking saucepan with pressure limiting power down function according to claim 2 is characterized in that: also be provided with on the described switch and can drive the SR that described movable contact spring and described the second binding post resume contacts.
4. it is characterized in that: also be provided with movable contact on the described movable contact spring, be provided with the stationary contact that cooperates with described movable contact on the position of corresponding described movable contact on described the second binding post according to claim 2 or 3 described electric pressure cooking saucepans with pressure limiting power down function.
5. the electric pressure cooking saucepan with pressure limiting power down function according to claim 1, it is characterized in that: described elastomer is spring or nitrogen.
6. the electric pressure cooking saucepan with pressure limiting power down function according to claim 5 is characterized in that: be provided with sealing ring between described sliding chamber and the push rod.
7. the electric pressure cooking saucepan with pressure limiting power down function according to claim 6 is characterized in that: described interior pot internal pressure was 130KPa～250KPa when described elastic mechanism disconnected described switch.
8. the electric pressure cooking saucepan with pressure limiting power down function according to claim 7 is characterized in that: described interior pot internal pressure was 140KPa～220KPa when described elastic mechanism disconnected described switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446543.2U CN202820911U (en) | 2012-09-04 | 2012-09-04 | Electrical pressure cooker with pressure limiting power off function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220446543.2U CN202820911U (en) | 2012-09-04 | 2012-09-04 | Electrical pressure cooker with pressure limiting power off function |
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| Publication Number | Publication Date |
|---|---|
| CN202820911U true CN202820911U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220446543.2U Expired - Lifetime CN202820911U (en) | 2012-09-04 | 2012-09-04 | Electrical pressure cooker with pressure limiting power off function |
Country Status (1)
| Country | Link |
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| CN (1) | CN202820911U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106974547A (en) * | 2017-04-18 | 2017-07-25 | 杨丹妮 | Double boiler |
| CN107136907A (en) * | 2017-04-18 | 2017-09-08 | 杨丹妮 | Ceramic pan |
| CN107136908A (en) * | 2017-04-18 | 2017-09-08 | 杨丹妮 | It is easy to the pot toppled over |
| CN107212735A (en) * | 2017-04-18 | 2017-09-29 | 杨丹妮 | Low pressure pot |
| CN107647770A (en) * | 2016-07-26 | 2018-02-02 | 佛山市顺德区美的电热电器制造有限公司 | Overvoltage protection switch and there are its pressure means |
| CN107647779A (en) * | 2016-07-26 | 2018-02-02 | 佛山市顺德区美的电热电器制造有限公司 | Overvoltage protection switch and there are its pressure means |
| CN110859489A (en) * | 2018-08-27 | 2020-03-06 | 佛山市顺德区美的电热电器制造有限公司 | Vacuum cooking utensil, method and device for controlling pressure relief of vacuum cooking utensil and storage medium |
| CN112914359A (en) * | 2021-04-09 | 2021-06-08 | 宁波浪木饮水设备科技有限公司 | Automatic water-checking thermos |
| CN113017410A (en) * | 2021-03-31 | 2021-06-25 | 刘志慧 | High-pressure sterilizing pot capable of realizing safety protection |
-
2012
- 2012-09-04 CN CN201220446543.2U patent/CN202820911U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107647770A (en) * | 2016-07-26 | 2018-02-02 | 佛山市顺德区美的电热电器制造有限公司 | Overvoltage protection switch and there are its pressure means |
| CN107647779A (en) * | 2016-07-26 | 2018-02-02 | 佛山市顺德区美的电热电器制造有限公司 | Overvoltage protection switch and there are its pressure means |
| CN107647779B (en) * | 2016-07-26 | 2020-09-22 | 佛山市顺德区美的电热电器制造有限公司 | Overvoltage protection switch and pressure appliance with same |
| CN106974547A (en) * | 2017-04-18 | 2017-07-25 | 杨丹妮 | Double boiler |
| CN107136907A (en) * | 2017-04-18 | 2017-09-08 | 杨丹妮 | Ceramic pan |
| CN107136908A (en) * | 2017-04-18 | 2017-09-08 | 杨丹妮 | It is easy to the pot toppled over |
| CN107212735A (en) * | 2017-04-18 | 2017-09-29 | 杨丹妮 | Low pressure pot |
| CN110859489A (en) * | 2018-08-27 | 2020-03-06 | 佛山市顺德区美的电热电器制造有限公司 | Vacuum cooking utensil, method and device for controlling pressure relief of vacuum cooking utensil and storage medium |
| CN110859489B (en) * | 2018-08-27 | 2022-02-25 | 佛山市顺德区美的电热电器制造有限公司 | Vacuum cooking utensil, method and device for controlling pressure relief of vacuum cooking utensil and storage medium |
| CN113017410A (en) * | 2021-03-31 | 2021-06-25 | 刘志慧 | High-pressure sterilizing pot capable of realizing safety protection |
| CN113017410B (en) * | 2021-03-31 | 2022-07-15 | 浙江高林家居科技有限公司 | High-pressure sterilizing pot capable of realizing safety protection |
| CN112914359A (en) * | 2021-04-09 | 2021-06-08 | 宁波浪木饮水设备科技有限公司 | Automatic water-checking thermos |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |