CN218120184U - Heating device - Google Patents
Heating device Download PDFInfo
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- CN218120184U CN218120184U CN202221557555.2U CN202221557555U CN218120184U CN 218120184 U CN218120184 U CN 218120184U CN 202221557555 U CN202221557555 U CN 202221557555U CN 218120184 U CN218120184 U CN 218120184U
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- temperature sensor
- heater
- heating device
- circuit board
- water level
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Abstract
The utility model discloses a heating device, which comprises a shell with a holding cavity, a heater and a temperature sensor; the heater is arranged at the lower part of the shell; the temperature sensor is lengthwise and is vertically arranged in the accommodating cavity, and the length of the temperature sensor is the set water level depth; the water level detection device is characterized by further comprising a circuit board which is electrically connected with the heater and the temperature sensor and used for judging whether water in the accommodating cavity reaches a set water level depth or not by detecting the voltage difference between the heater and the temperature sensor, so that the water level detection structure is simplified, parts are reduced, the cost is reduced, and the assembly is facilitated.
Description
Technical Field
The utility model relates to a heating technology field especially relates to a heating device.
Background
The traditional heater requires to detect the height of the water level, the traditional method is to utilize the buoyancy of the floating ball to drive the magnet to sense the magnetic reed switch, so as to judge the height of the water level, but the water level detection structure is large, single in action and only can be used as the water level sensing operation alone.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, to at least one defect that prior art exists, a heating device is provided.
The utility model provides a technical scheme that its technical problem adopted is: constructing a heating device comprising a housing having an accommodating chamber, a heater and a temperature sensor;
the heater is arranged at the lower part of the shell;
the temperature sensor is lengthwise and is vertically arranged in the accommodating cavity, and the length of the temperature sensor is the set water level depth;
the water level sensor is electrically connected with the heater and the temperature sensor, and the circuit board is used for judging whether the water in the accommodating cavity reaches a set water level depth or not by detecting the voltage difference between the heater and the temperature sensor.
Preferably, in the heating device of the present invention, the circuit board is electrically connected to the heater and the temperature sensor through a flat cable.
Preferably, in the heating apparatus of the present invention, the temperature sensor includes a conductive housing; the circuit board is electrically connected with the conductive shell of the temperature sensor.
Preferably, in the heating device of the present invention, the conductive housing is provided with a first polarity terminal electrically connected to the circuit board.
Preferably, in the heating device of the present invention, the housing includes a conductive base and an insulating top cover;
the heater is arranged on the conductive base, and the temperature sensor is arranged on the insulating top cover in a penetrating mode.
Preferably, in the heating device of the present invention, the circuit board is electrically connected to the heater through the conductive base.
Preferably, in the heating device of the present invention, the conductive base is provided with a second polarity terminal electrically connected to the circuit board.
Preferably, in the heating device of the present invention, a first sealing member is disposed between the base and the insulating top cover.
Preferably, in the heating device of the present invention, a second sealing member is disposed between the temperature sensor and the insulating top cap.
Preferably, heating device in, heating device is still including locating the venthole and the inlet port at holding chamber top, and locate air inlet switch valve on the inlet port.
Through implementing the utility model discloses, following beneficial effect has:
the utility model designs a heating device according to the difference between the water and gas resistivities, the heater is arranged at the lower part of the shell, the temperature sensor is lengthily arranged and vertically arranged in the holding cavity of the shell, and the length of the temperature sensor is the set water level depth; the circuit board is connected with heater and temperature sensor electricity, and the circuit board is used for detecting the voltage difference between heater and the temperature sensor to judge whether the water of holding intracavity reaches the water level degree of depth of settlement, thereby simplify the water level and detect the structure, reduce the part, reduce the cost, the assembly of being convenient for.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic view of the overall structure of the heating device of the present invention;
fig. 2 is a schematic sectional view of the heating device of the present invention;
fig. 3 is a schematic diagram of the heating device according to the present invention, in which the circuit board is electrically connected to the heater and the temperature sensor.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or chemically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1 to 3, the present embodiment discloses a heating apparatus including a case 1 having an accommodating chamber, a heater 2, and a temperature sensor 4; the heater 2 is arranged at the lower part of the shell 1; the temperature sensor 4 is in a longitudinal shape and is vertically arranged in the accommodating cavity, and the length of the temperature sensor 4 is the set water level depth;
the water level detection device further comprises a circuit board 3 which is electrically connected with the heater 2 and the temperature sensor 4 and is used for judging whether the water in the accommodating cavity reaches the set water level depth or not by detecting the voltage difference between the heater 2 and the temperature sensor 4.
The water level detection device is designed according to the difference of the resistivity of water and gas, and the height of the water level is judged by using the electrodes, so that the water level detection structure is simplified, and the cost is reduced.
When the voltage difference between the two ends of the heater 2 and the temperature sensor 4 is greater than a preset threshold value, indicating that the water is not filled; when the voltage across is less than a predetermined threshold, it indicates that the water is full. The maximum voltage difference between the two terminals is the input power voltage, for example, the preset threshold is 4V, and the maximum voltage difference is 5V.
In some embodiments, the circuit board 3 is electrically connected to the heater 2 and the temperature sensor 4 by a bus cable. For example, 2PIN strips are merely examples, and other connection means may be used in other embodiments.
In some embodiments, the temperature sensor 4 includes a conductive housing 41, such as a metal housing, and the circuit board 3 is electrically connected to the conductive housing 41 of the temperature sensor 4.
In some embodiments, the housing 1 includes a conductive base 11 and an insulating top cover 12, such as a metal base 11. The heater 2 is arranged at the lower part of the conductive base 11, and the temperature sensor 4 is arranged on the insulating top cover 12 in a penetrating way. Further, the circuit board 3 is electrically connected to the heater 2 through the conductive base 11.
Accordingly, the conductive housing 41 is provided with a first polarity terminal 42, for example, a positive terminal, which is electrically connected to the circuit board 3. The conductive base 11 is provided with a second polarity terminal 21, for example, a negative terminal, electrically connected to the circuit board 3.
In some embodiments, to ensure the sealing property, a first sealing member 5, such as a sealing ring, is disposed between the base 11 and the insulating top cover 12. A second seal 6, for example a gland, is provided between the temperature sensor 4 and the insulating cap 12.
In some embodiments, in order to avoid excessive pressure when steam is generated by heating, the heating device further comprises an air outlet hole and an air inlet hole which are arranged at the top of the accommodating cavity, and an air inlet switch valve 7, such as a one-way valve or a solenoid valve, which is arranged on the air inlet hole and is opened when air is required to be introduced.
Through implementing the utility model discloses, following beneficial effect has:
the utility model designs a heating device according to the difference between the water and gas resistivities, the heater is arranged at the lower part of the shell, the temperature sensor is lengthwise and is vertically arranged in the holding cavity of the shell, and the length of the temperature sensor is the set water level depth; the circuit board is electrically connected with the heater and the temperature sensor, and the circuit board is used for detecting the voltage difference between the heater and the temperature sensor to judge whether the water in the accommodating cavity reaches the set water level depth or not, so that the water level detection structure is simplified, parts are reduced, the cost is reduced, and the assembly is convenient.
It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. The heating device is characterized by comprising a shell (1) with an accommodating cavity, a heater (2) and a temperature sensor (4);
the heater (2) is arranged at the lower part of the shell (1);
the temperature sensor (4) is lengthwise and is vertically arranged in the accommodating cavity, and the length of the temperature sensor (4) is the set water level depth;
the water level detection device is characterized by further comprising a circuit board (3) which is electrically connected with the heater (2) and the temperature sensor (4) and used for judging whether the water in the accommodating cavity reaches a set water level depth or not by detecting the voltage difference between the heater (2) and the temperature sensor (4).
2. The heating device according to claim 1, wherein the circuit board (3) is electrically connected to the heater (2) and the temperature sensor (4) by a flat cable.
3. The heating device according to claim 1, wherein the temperature sensor (4) comprises an electrically conductive housing (41); the circuit board (3) is electrically connected with the conductive shell (41) of the temperature sensor (4).
4. A heating device according to claim 3, characterized in that the electrically conductive housing (41) is provided with a first polarity terminal (42) which is electrically connected to the circuit board (3).
5. The heating device according to claim 1, characterized in that the housing (1) comprises an electrically conductive base (11) and an insulating top cover (12);
the heater (2) is arranged on the conductive base (11), and the temperature sensor (4) penetrates through the insulating top cover (12).
6. A heating device according to claim 5, characterized in that the circuit board (3) is electrically connected to the heater (2) through the electrically conductive base (11).
7. A heating device according to claim 6, characterized in that the electrically conductive base (11) is provided with a second polarity terminal (21) which is electrically connected to the circuit board (3).
8. A heating device according to claim 5, characterized in that a first seal (5) is provided between the base (11) and the insulating top cover (12).
9. A heating device according to claim 5, characterized in that a second seal (6) is provided between the temperature sensor (4) and the insulating top cover (12).
10. The heating device according to claim 1, further comprising an air outlet and an air inlet arranged on the top of the accommodating chamber, and an air inlet switch valve (7) arranged on the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221557555.2U CN218120184U (en) | 2022-06-21 | 2022-06-21 | Heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221557555.2U CN218120184U (en) | 2022-06-21 | 2022-06-21 | Heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218120184U true CN218120184U (en) | 2022-12-23 |
Family
ID=84516681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221557555.2U Active CN218120184U (en) | 2022-06-21 | 2022-06-21 | Heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218120184U (en) |
-
2022
- 2022-06-21 CN CN202221557555.2U patent/CN218120184U/en active Active
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