CN213786842U - Electric kettle capable of delaying boiling - Google Patents
Electric kettle capable of delaying boiling Download PDFInfo
- Publication number
- CN213786842U CN213786842U CN202022566268.5U CN202022566268U CN213786842U CN 213786842 U CN213786842 U CN 213786842U CN 202022566268 U CN202022566268 U CN 202022566268U CN 213786842 U CN213786842 U CN 213786842U
- Authority
- CN
- China
- Prior art keywords
- temperature
- electric kettle
- electric
- heat
- loop
- 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.)
- Active
Links
Images
Landscapes
- Cookers (AREA)
Abstract
The boiling time-delay electric kettle comprises an electric kettle body for boiling water, a first temperature control switch and a first electric heating element are defined in series connection with the first loop, the control circuit comprises a first loop and a second loop, the first loop is provided with the first temperature control switch and the first electric heating element in series connection, the first temperature control switch is set to detect the first temperature and cut off the first loop when the first temperature exceeds a first threshold temperature, the first electric heating element is used for heating the heat capacity element, the heat capacity element is made of heat-resistant materials and is defined to be the second temperature, the second loop is provided with the second temperature control switch and the second electric heating element in series connection, the second temperature control switch is set to detect the second temperature and open the second loop when the second temperature exceeds a second threshold temperature, and the second electric heating element is used for heating water in the electric kettle body. The boiling time delay of the electric kettle does not need to be controlled by a computer, and the electric kettle has simple circuit and low cost.
Description
Technical Field
The utility model relates to an electric kettle, in particular to an electric kettle capable of delaying boiling.
Background
The electric kettle capable of delaying boiling generally has a function of delaying heating, and can delay heating of boiling water after the water is boiled so as to enable the water in the kettle to continue boiling for a certain time, thereby being capable of removing chlorine dissolved in the boiling water and avoiding the influence of the chlorine on the health of a user.
However, the delayed heating function of the existing electric kettle is generally controlled by a computer, and the electric kettle is only applied to high-grade electric kettles with computer control, and cannot be popularized to common electric kettles.
Disclosure of Invention
The utility model aims at providing a can boil time delay electric kettle, its time delay heating's function need not by computer control, has the advantage that the circuit is simple, with low costs, popularizes easily general electric kettle in, and the technical scheme who adopts as follows:
an electric kettle capable of delaying boiling comprises an electric kettle body for boiling water, and the temperature of the water inside the electric kettle body is defined as a first temperature when the electric kettle works, and is characterized in that:
the heat container and the control circuit are also included, and the control circuit comprises a first loop and a second loop;
the first loop is connected in series with a first temperature control switch and a first electric heating element, the first temperature control switch is set to detect the first temperature and cut off the first loop when the first temperature exceeds a first threshold temperature, the first electric heating element is used for heating the heat containing element, the heat containing element is made of heat-resistant materials, and the temperature of the heat containing element is defined as a second temperature;
the second loop is connected in series with a second temperature control switch and a second electric heating element, the second temperature control switch is set to detect the second temperature and open the second loop when the second temperature exceeds a second threshold temperature, and the second electric heating element is used for heating water in the electric kettle body.
Specifically, the first and second temperature control switches may be bimetallic strip temperature control switches: the first temperature control switch is a positive temperature control switch which is closed when the temperature is lower than the threshold temperature and is opened when the temperature is higher than the threshold temperature, and the first temperature control switch can be attached to the electric kettle body or made into a waterproof temperature control pipe which directly extends into the water container of the electric kettle body so as to detect the first temperature and determine the switch state of the first temperature control switch; the second temperature controlled switch is a negative type temperature controlled switch that opens when the temperature is below the threshold temperature and closes when the temperature is above the threshold temperature, and may be attached or disposed within the thermal mass so as to detect the second temperature and thereby determine the switching state thereof. The first and second electric heating elements may be common electric heating tubes, or electric heating elements with more complicated structure, such as high-power electric heating elements controlled by a relay, wherein the first electric heating element may be attached to or wrapped in the heat capacity element, and the second electric heating element may be attached to or extended into the water container of the electric kettle body. Preferably, the heat capacity member may be a heat-resistant material, such as a block made of metal or ceramic and having a certain volume (e.g. 5 cm in volume)3To 100cm3Block) to ensure sufficient thermal capacity, and it can also be protected by some insulating material, such as asbestos, to avoid cooling too quickly and causing burns to other parts of the electric kettle and to the user.
The working process of the electric kettle is as follows: when water is boiled, the first temperature control switch is in a closed state because the water temperature (first temperature) does not reach the first threshold temperature, the first loop is conducted to enable the first electric heating element to be electrified, the first electric heating element heats the heat capacity element to enable the second temperature to rise, when the second temperature exceeds the second threshold temperature, the second temperature control switch is closed, the second loop is conducted to further enable the second electric heating element to be electrified to heat the water in the electric heating kettle body. When the first temperature reaches a first threshold temperature, such as boiling temperature (about 100 ℃), the first temperature control switch cuts off the first loop, the first electric heating element is closed to lower the second temperature of the heat accommodating element, and when the second temperature is reduced to a second threshold temperature after a certain time, the second temperature control switch cuts off the second loop, so that the second electric heating element stops heating the water in the electric kettle body. Because the temperature of the heat containing part is reduced for a certain time, in the time, although the water temperature in the electric kettle body reaches the first threshold temperature, the second temperature is not reduced below the second threshold temperature, and the second electric heating part can continue to heat the water in the kettle body, thereby achieving the purpose of boiling delay. In the electric kettle, the delayed heating is realized by utilizing the heat dissipation process of the heat container without adopting a computer for control, so that the electric kettle has the advantages of simple circuit and low cost, and is easy to popularize in common electric kettles.
In a preferred embodiment of the present invention, the second threshold temperature is higher than the first threshold temperature, so that it can avoid the heat of the hot water kettle from being transferred to the heat container and causing the second loop to be cut off and fail during the delayed heating. Further preferably, the first threshold temperature is 95 ℃ to 100 ℃, the second threshold temperature is 105 ℃ to 150 ℃, and the first threshold temperature and the second threshold temperature are set in the range, wherein the first threshold temperature is adapted to the boiling temperature of water, and the second threshold temperature is only higher than the first threshold temperature, so that the electric kettle has higher safety.
Further preferably, the electric kettle further comprises a heat conducting part, wherein the heat conducting part is connected between the heat capacity part and the electric kettle body, when the electric kettle works, the heat of the heat capacity part can be conducted into water in the electric kettle body, therefore, the heat of the heat capacity part is finally used for boiling water, and the unfavorable heat loss is avoided. Further preferably, the heat conducting portion has a lower thermal conductivity than the heat receiving member, thereby avoiding a too short time delay due to too fast heat loss of the heat receiving member.
The utility model discloses an in the preferred scheme, still include total return circuit and third temperature detect switch, first, two return circuits are connected with total return circuit after parallelly connected, and the third temperature detect switch sets up on total return circuit, and it sets up to survey the temperature of second electric heat piece and cuts off total return circuit when it surpasss a third threshold value temperature, third threshold value temperature is greater than first threshold value temperature. Further preferably, the third threshold temperature is in the range of 110 ℃ to 200 ℃. Therefore, when the hot water kettle is lack of water and is empty, the third temperature control switch can cut off the main loop to avoid the damage to the hot water kettle caused by continuous empty heating in a delayed heating state.
The utility model discloses an in the preferred scheme, still include the pot lid, be equipped with between pot lid and the electric kettle body and prevent the portion and provide the elasticity hinge of an ejection force for the pot lid to the elasticity hinge is the axle, the elastic force of elasticity hinge has first moment, and when the internal water boiling of electric kettle, the difference of applying vapor and atmospheric pressure on the pot lid has the second moment, the biggest power that stops that prevents the portion has the third moment, the third moment is in between first, two moments. Therefore, in a natural state, the stopping part can resist the ejecting force of the elastic hinge to keep the cover of the kettle cover tight, when water in the kettle body is boiled, the stopping part can be opened by steam pressure applied to the inner side of the kettle cover by steam, so that the kettle cover can be further opened by the elastic hinge, the kettle cover is boiled again after being opened, and chlorine dissolved in boiling water can be removed more effectively.
Further preferably, the stopper is formed by a protrusion and a recess between the pot body and the pot lid, so that the stopper can be formed when the pot body and the pot lid are molded, which is convenient to manufacture. Alternatively, it is further preferable that the blocking part is formed by a pair of magnets which attract each other between the pot body and the pot lid, whereby the maximum blocking force between the pot body and the pot lid can be more easily designed by the attraction force of the magnets through the attraction of the magnets between the pot body and the pot lid.
Drawings
FIG. 1 is a schematic view of an electric kettle according to a first embodiment;
FIG. 2 is a schematic configuration diagram of the main components of the electric kettle according to the first embodiment;
fig. 3 is a schematic circuit diagram of an electric kettle according to the first embodiment.
Detailed Description
Example one
As shown in fig. 1, 2 and 3, the electric kettle 100 with boiling time delay comprises an electric kettle body 10 for boiling water and a kettle lid 20, wherein a concave-convex stopping part 21 and an elastic hinge 22 for providing an ejection force for the kettle lid 20 are arranged between the kettle lid 20 and the kettle body 10, and the elasticity of the elastic hinge is generated by a spring 221.
The electric kettle 100 is provided with a heat container 40 and a control circuit 50, which comprises a first loop 51, a second loop 52 and a main loop 53.
The first circuit 51 is connected in series with a first temperature control switch 511 and a first electric heating tube 512, the first temperature control switch 511 is a positive type bimetallic temperature control switch which is closed when the temperature is lower than about 98 ℃ (the first threshold temperature) and is opened when the temperature is higher than about 98 ℃, and the first temperature control switch is tightly attached to the electric heating kettle body 10 so as to detect the temperature of water (the first temperature) in the electric heating kettle body 10 and determine the switch state thereof.
The second circuit 51 is connected in series with a second temperature control switch 521 and a second electrothermal tube 522, and the second temperature control switch 521 is a negative bimetallic strip temperature control switch which is opened when the temperature is lower than about 120 ℃ (the first threshold temperature) and is closed when the temperature is higher than about 120 ℃.
The heat container 40 has a volume of 30cm3The first electrothermal tube 512 and the second temperature controlled switch 521 are disposed in the ceramic block 40, so that the first electrothermal tube 512 can heat the heat mass 40, and the second temperature controlled switch 521 can detect the temperature (second temperature) of the heat mass 40 and determine the switch status thereof. The second electric heating tube 522 extends into the electric kettle body 10 to heat the water in the electric kettle 10 during operation.
The heat container 40 is arranged in the asbestos case 41 and is closely attached to the electric kettle body 10 through a heat conducting part 42, the heat conducting part 42 is made of ceramic with high porosity, the heat conductivity of the ceramic is lower than that of the heat container 40 and higher than that of the asbestos case 41, and most of the heat container 40 is slowly released to the electric kettle body 10.
The first loop 51 and the second loop 52 are connected in parallel and then connected with the main loop 53, the main loop 53 is provided with a third temperature control switch 531 for idle burning protection, the third temperature control switch 531 is tightly attached to the second electric heating tube 522, and is a positive bimetallic strip temperature control switch which is closed when the temperature is lower than about 150 ℃ (third threshold temperature) and is opened when the temperature is higher than about 150 ℃ (third threshold temperature), so that the temperature control switch can detect the temperature (third temperature) of the second electric heating tube 522, and the main loop is cut off when the idle burning temperature exceeds about 150 ℃, thereby playing the role of idle burning protection.
The working process of the electric kettle is as follows:
when water boiling is started (the circuit is connected with electricity), because the water temperature (the first temperature) does not reach 98 ℃, the first temperature control switch 511 is in a closed state, the first loop 51 is conducted to electrify the first electric heating tube 512, the first temperature control switch 521 heats the heat containing element 40 to increase the second temperature, when the second temperature exceeds 110 ℃, the second loop 52 is conducted to electrify the second electric heating tube 522 to heat the water in the electric kettle body 10 to increase the first temperature, when the first temperature reaches about 98 ℃, the first temperature control switch 511 cuts off the first loop 51, the first electric heating tube 512 is closed to enable the second temperature of the heat containing element 40 to start to fall, and when the second temperature decreases to about 110 ℃, the second temperature control switch 521 cuts off the second loop, so that the second electric heating tube 522 stops heating the water in the electric kettle body 10. Since the temperature of the heat container 40 is reduced to 110 ℃ and a certain time is required, in the time, although the temperature of the water in the electric kettle body 10 reaches above 98 ℃, the second electric heating tube 522 can still continue to heat the water in the kettle body 10, thereby achieving the purpose of delaying boiling.
In addition, the elastic hinge 22 is used as an axis, the elastic force of the spring 221 has a first moment M1, when the water in the electric kettle body is boiled, the difference between the water vapor applied to the kettle cover 20 and the atmospheric pressure has a second moment M2, the maximum resistance of the blocking portion 21 has a third moment M3, and the third moment M3 can be designed as follows through the concave-convex degree of the blocking portion 21:
M1<M3<M2
thus, the stopper 21 keeps the lid 20 tightly against the elastic force of the spring 221 in a natural state, and when the water in the pot body 10 is boiled, the stopper 21 is pushed open by the steam pressure applied to the inner side of the lid 20 and is further pushed open by the spring 221, whereby the chlorine gas dissolved in the boiling water can be more effectively removed for a prolonged period of time.
In another embodiment of the present invention, the convex-concave blocking portion 21 may be a pair of magnets (not shown) that attract each other, thereby forming a magnetic attraction blocking portion whose resistance can be controlled by the size of the magnets and the selection of the magnetic material.
In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (10)
1. An electric kettle capable of delaying boiling comprises an electric kettle body for boiling water, and the temperature of the water inside the electric kettle body is defined as a first temperature when the electric kettle works, and is characterized in that:
the heat capacity piece is arranged on the first circuit and the second circuit;
the first loop is connected in series with a first temperature control switch and a first electric heating element, the first temperature control switch is set to detect the first temperature and cut off the first loop when the first temperature exceeds a first threshold temperature, the first electric heating element is used for heating the heat containing element, the heat containing element is made of heat-resistant materials, and the temperature of the heat containing element is defined as a second temperature;
the second loop is connected in series with a second temperature control switch and a second electric heating element, the second temperature control switch is set to detect the second temperature and open the second loop when the second temperature exceeds a second threshold temperature, and the second electric heating element is used for heating water in the electric kettle body.
2. The electric kettle as set forth in claim 1, characterized in that: the heat container is a block made of heat-resistant materials.
3. The electric kettle as set forth in claim 1, characterized in that: the second threshold temperature is higher than the first threshold temperature.
4. The electric kettle as set forth in claim 3, characterized in that: the first threshold temperature is 95 ℃ to 100 ℃, and the second threshold temperature is 105 ℃ to 150 ℃.
5. The electric kettle as set forth in claim 3, characterized in that: the electric kettle further comprises a heat conducting part, and the heat conducting part is connected between the heat containing part and the electric kettle body.
6. The electric kettle as set forth in claim 5, characterized in that: the heat conduction part has a lower thermal conductivity than the heat container.
7. The electric kettle as set forth in claim 1, characterized in that: the first loop and the second loop are connected in parallel and then connected with the main loop, the third temperature control switch is arranged on the main loop and is used for detecting the temperature of the second electric heating piece and cutting off the main loop when the temperature of the second electric heating piece exceeds a third threshold temperature, and the third threshold temperature is greater than the first threshold temperature.
8. The electric kettle as set forth in claim 1, characterized in that: the electric kettle further comprises a kettle cover, a blocking part and an elastic hinge are arranged between the kettle cover and the electric kettle body, the elastic hinge is used for providing an ejection force for the kettle cover, the elastic hinge is used as an axis, the elastic force of the elastic hinge has a first moment, when water in the electric kettle body boils, the difference between water vapor applied to the kettle cover and atmospheric pressure has a second moment, the maximum blocking force of the blocking part has a third moment, and the third moment is between the first moment and the second moment.
9. The electric kettle as set forth in claim 8, characterized in that: the stopping part is composed of concave-convex parts between the kettle body and the kettle cover.
10. The electric kettle as set forth in claim 8, characterized in that: the blocking part is composed of a pair of magnets which are mutually adsorbed between the kettle body and the kettle cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022566268.5U CN213786842U (en) | 2020-11-09 | 2020-11-09 | Electric kettle capable of delaying boiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022566268.5U CN213786842U (en) | 2020-11-09 | 2020-11-09 | Electric kettle capable of delaying boiling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213786842U true CN213786842U (en) | 2021-07-27 |
Family
ID=76966353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022566268.5U Active CN213786842U (en) | 2020-11-09 | 2020-11-09 | Electric kettle capable of delaying boiling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213786842U (en) |
-
2020
- 2020-11-09 CN CN202022566268.5U patent/CN213786842U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111561715A (en) | Capacitance control gas stove protection device based on expansion with heat and contraction with cold principle | |
| CN213786842U (en) | Electric kettle capable of delaying boiling | |
| RU97101166A (en) | TUBULAR ELECTRIC RESISTIVE ELEMENT, HEATING PLATE AND ELECTRIC KETTLE | |
| CN205053734U (en) | Safe energy -conserving electric cooker structure | |
| CN207731866U (en) | Dry combustion method non-automatic-reset protector | |
| CN201337333Y (en) | Electric rice cooker and control circuit | |
| CN214510765U (en) | Electric kettle capable of controlling temperature | |
| CN209644666U (en) | Electric kettle | |
| CN202761018U (en) | Vacuum heat preservation type dry burning preventing electric kettle provided with long-term heat preservation structure | |
| CN207560370U (en) | A kind of very fast heater circuit and its electric kettle | |
| CN104490288B (en) | A kind of temperature control mechanism | |
| CN201822620U (en) | Automatic heat-preserving electric heating kettle | |
| CN201510106U (en) | Electric rice cooker | |
| CN204069365U (en) | The circuit protection structure of thick film/film electroform heater | |
| CN204217138U (en) | A kind of electric hot-water bag heater | |
| CN203458210U (en) | Heating structure of kettle | |
| CN109238482B (en) | Large-current empty pot detection and dry burning prevention sensor | |
| CN202523637U (en) | Open type temperature protector | |
| CN2215167Y (en) | Dry boiling preventing heating device for electric kettle | |
| CN207082486U (en) | A kind of temperature controller with duplicate protection | |
| CN200946918Y (en) | Multifunction electric water heater for resisting idle-burning | |
| CN202737441U (en) | Dry burning prevention protective circuit of liquid electric heater, liquid vaporizing pot and electric iron | |
| CN204743752U (en) | Full -automatic hemisphere electric kettle | |
| CN209119002U (en) | One kind automatically powering off reset temperature controller | |
| CN208652630U (en) | A kind of gas-cooker automatic closing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |