CN215959437U - Heating system - Google Patents
Heating system Download PDFInfo
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- CN215959437U CN215959437U CN202121648352.XU CN202121648352U CN215959437U CN 215959437 U CN215959437 U CN 215959437U CN 202121648352 U CN202121648352 U CN 202121648352U CN 215959437 U CN215959437 U CN 215959437U
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Abstract
The application discloses heating system includes: the liquid heating device comprises a liquid input device, a circuit board, a liquid circulating device and a heating device, wherein the liquid input device is used for introducing liquid, and forms a liquid circulating passage with the liquid circulating device and the heating device, so that the liquid flowing through the liquid input device is also heated by the heating device; the circuit board is provided with a temperature sensing piece and a control circuit, the control circuit is respectively in conductive connection with the temperature sensing piece and the heating device, the temperature sensing piece is used for sensing the temperature of the circuit board and feeding the temperature of the circuit board back to the control circuit, and therefore the control circuit adjusts the heating power of the heating device according to the temperature of the circuit board. This application can reduce heating device's calorific capacity through adjustment heating device's heating power to the probability that electronic components on the low circuit board were burnt out.
Description
Technical Field
The application relates to the technical field of heating, in particular to a heating system.
Background
Heating systems exist in many appliances, such as water dispensers, which heat a liquid flowing into the heating system by means of heat conduction. There is often a circuit board in the heating system for controlling the operation of the heating means within the heating system. However, the circuit board has a plurality of electronic components, and these electronic components are subjected to a limited temperature range, so that the electronic components on the circuit board are easily burned out when the circuit board is operated for a long time and in a high-temperature environment.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides a heating system, which reduces the probability that electronic components on a circuit board are burned out due to long-term operation in a high temperature environment.
An embodiment of the present application provides a heating system, including:
a liquid input device for introducing a liquid;
the temperature sensing element is electrically connected with the control circuit;
the liquid circulation device is arranged on the liquid input device and forms a liquid circulation passage with the liquid input device;
the heating device is arranged on the liquid circulation device, forms a liquid circulation passage with the liquid circulation device, and is also used for heating the liquid flowing through;
the heating device is also in conductive connection with the control circuit, and the temperature sensing piece is used for sensing the temperature of the circuit board and feeding back the temperature of the circuit board to the control circuit, so that the control circuit adjusts the heating power of the heating device according to the temperature of the circuit board.
Optionally, the liquid flow-through device comprises:
a first pipe body having a passage through which a liquid flows, the pipe body being provided with a first through hole through which the liquid is allowed to flow;
the contact element is arranged on the first pipe body, covers the first through hole, is in contact with the liquid in the first pipe body, and is in contact with the temperature sensing piece and used for reducing the temperature of the temperature sensing piece.
Optionally, the heating device comprises: and the heating pipe is arranged on the liquid circulation device, a liquid circulation passage is arranged in the heating pipe, and a heating coil is arranged on the surface of the heating pipe and is used for heating the liquid in the heating pipe.
Optionally, a drainage piece is further arranged in the heating pipe and is arranged in the heating pipe, and the drainage piece is spiral so that a spirally extending fluid circulation passage is formed in the heating pipe.
Optionally, the heating device further includes a first connecting member sleeved at the first end of the heating pipe and used for connecting the liquid circulation device and the liquid circulation path of the heating pipe.
Optionally, the heating device further includes a second connecting member sleeved at the second end of the heating pipe, and a liquid circulation passage is formed in the second connecting member and used for leading out the heated liquid.
Optionally, the liquid input device comprises a booster pump disposed at a liquid output port of the liquid input device.
Optionally, the liquid input device further includes a second tube disposed on the booster pump, and a liquid flow passage allowing liquid to flow to the booster pump in a single direction is disposed in the second tube.
Optionally, the first pipe body is provided with a second through hole;
the liquid circulating device further comprises a first detection piece which is arranged in the second through hole, is in contact with the fluid in the tube body and is used for detecting the temperature of the fluid.
Optionally, the first pipe body is provided with a third through hole;
the liquid circulation device further comprises a second detection piece which is arranged in the third through hole and is contacted with the liquid in the tube body.
In the embodiment of the application, liquid input device, liquid circulation device and heating device have formed a liquid circulation route, through setting up temperature-sensing spare on the circuit board, with the temperature of detection circuit board, control circuit on the circuit board is fed back through the temperature with the circuit board, can make control circuit according to this temperature adjustment heating device's power, thereby reduce heating device's calorific capacity, make heating system's ambient temperature can descend, and then reduce the probability that electronic components on the circuit board were burnt out.
Drawings
FIG. 1 is a schematic diagram of a heating system according to an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of the heating system shown in FIG. 1;
FIG. 3 is a schematic diagram of a partial circuit configuration of the circuit board shown in FIG. 1;
FIG. 4 is a schematic view of a portion of the liquid flow-through device of FIG. 1;
fig. 5 is a partial schematic view of the flow guide in the heating tube shown in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the embodiments and the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments, and not all embodiments. Based on the embodiments in the present application, the following respective embodiments and technical features thereof may be combined with each other without conflict.
It should be understood that in the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing technical solutions and simplifying the description of the respective embodiments of the present application, and do not indicate or imply that a device or an element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
In view of the probability of the electronic components in the heating system 1 being burned out, with reference to fig. 1 to 3, the present application proposes a heating system 1 comprising: liquid input device 10, liquid circulation device 20, circuit board 30 and heating device 40;
the liquid input device 10 has a passage inside for allowing liquid to flow, for introducing liquid; the liquid circulation device 20 is arranged on the liquid input device 10 and forms a liquid circulation passage with the liquid input device 10; the heating device 40 is disposed on the liquid input device 10 and forms a liquid flow path with the liquid input device 10.
The liquid input device 10, the liquid circulating device 20 and the heating device 40 form a liquid circulating path, which can be shown by a dotted arrow in fig. 2, that is, liquid enters the heating system 1 from the liquid input device 10 and is output from the heating system 1 through the liquid circulating device 20 and the heating device 40, wherein the liquid introduced by the liquid input device 10 has a low temperature, and the liquid flowing through the liquid input device 10 can be heated and output through the heating device 40, so that the liquid with the low temperature is heated into liquid with a high temperature. The liquid may be water, coffee, milk, etc. which is liquid at normal temperature.
The circuit board 30 is provided with a temperature sensing member 31 and a control circuit 32, the temperature sensing member 31 is electrically connected with the control circuit 32, and the heating device 40 is electrically connected with the control circuit 32. The temperature sensing member 31 is used for sensing the temperature of the circuit board 30 and feeding back the temperature of the circuit board 30 to the control circuit 32, so that the control circuit 32 adjusts the heating power of the heating device 40 according to the temperature of the circuit board 30.
Since the temperature sensing member 31 is located in the same spatial environment as the circuit board 30, the ambient temperature of the heating system 1 can be detected by using the temperature sensing member 31 and regarded as the temperature of the circuit board 30. The temperature sensing member 31 may be implemented by a thyristor.
Illustratively, the temperature sensor 31 has a temperature detection range, when the temperature sensor 31 detects the temperature of the circuit board 30 in the temperature range, the temperature of the circuit board 30 is sent to the control circuit 32, the control circuit 32 determines whether the temperature is greater than a preset temperature threshold, and if the temperature is greater than the preset temperature threshold, the control circuit 32 adjusts the operating voltage or the operating current of the heating device 40 by using a Pulse Width Modulation (PWM) signal, so as to adjust the heating power of the heating device 40.
In the above embodiment, the liquid input device 10, the liquid circulation device 20 and the heating device 40 form a liquid circulation path, the temperature sensing element 31 is disposed on the circuit board 30 to detect the temperature of the circuit board 30, and the control circuit 32 feeds back the temperature of the circuit board 30 to the control circuit 32 on the circuit board 30, so that the control circuit 32 can adjust the power of the heating device 40 according to the temperature, thereby reducing the heat generation amount of the heating device 40, lowering the ambient temperature of the heating system 1, and further reducing the probability that the electronic components on the circuit board 30 are burned out.
In a specific application scenario, the heating system 1 may be installed and used along a first direction X; the liquid inlet means 10 may comprise a drain tube, and in particular use, a container may be provided outside the heating system 1, the container containing the liquid, the container being mountable on the drain tube in a first direction X and being adapted to be introduced into the heating system 1 through the drain tube by means of atmospheric pressure and the weight of the liquid itself.
In another specific application scenario, the heating system 1 may be installed and used along a direction opposite to the first direction; the liquid input device 10 may include a booster pump 11 disposed at a liquid output port of the liquid input device 10. In particular use, a container may be provided outside the heating system 1, the container containing a liquid, the container being mountable in a direction opposite to the first direction X, the booster pump 11 being connected to the container to form a liquid flow path. By using the booster pump 11, the pressure of the liquid inputted in the liquid input device 10 can be increased, so that the liquid can be more smoothly introduced into the heating system 1.
Further, the liquid inlet device 10 may further include a second pipe (not shown) disposed at the liquid inlet port of the booster pump 11, and a liquid flow passage allowing the liquid to flow to the booster pump 11 in one direction is disposed in the second pipe.
Specifically, a check valve may be disposed in the second pipe, and under the action of the check valve, the liquid can only be input from the container filled with the liquid and output to the liquid circulating device 20 and the heating device 40 through the action of the pressurizing pump 11.
This embodiment reduces the reverse flow of liquid by providing a second pipe in the liquid inlet device 10 that allows only one-way flow of liquid to the booster pump 11, so that the liquid flows in one direction by the second pipe.
In an embodiment, with reference to fig. 2 and 4, the liquid flow-through device 20 comprises a first tubular body 22 and a contact member 21;
the first tube 22 has a liquid flow path, the tube has a first through hole 22a allowing liquid to flow through, the contact member 21 is disposed on the first tube 22, covers the first through hole 22a, and contacts with the liquid in the first tube 22, and the contact member 21 contacts with the temperature sensing member 31 to reduce the temperature of the temperature sensing member 31.
On the passage in the first tube 22, since the first through hole 22a is covered by the contact member 21, the liquid can flow into the passage from the inlet and out of the passage from the outlet in the direction of the dotted arrow in fig. 2. The liquid, while passing through the passage, comes into contact with the contact 21, thereby conducting the temperature of the liquid to the contact 21. The contact member 21 is in contact with the temperature sensing member 31, and thus, the temperature of the contact member 21 is transmitted to the temperature sensing member 31, thereby indirectly transmitting the temperature of the liquid to the temperature sensing member 31.
The contact member 21 may be made of a material with good thermal conductivity, such as a metal material, an inorganic non-metal material, etc., so as to rapidly conduct the temperature of the liquid to the temperature sensing member 31; the first tube 22 can be made of plastic, silicone, metal, etc. by an integral molding method.
In a specific implementation scenario, the liquid circulating device 20 may be disposed on a liquid inlet channel of the liquid heating system 1, for example, at a water inlet of a water dispenser. Since the temperature of the liquid entering the passage is generally low, the temperature sensing member 31 can be radiated to lower the temperature of the temperature sensing member 31.
In the liquid circulation device 20 of the present embodiment, the first through hole 22a is provided in the first pipe 22, and the contact member 21 covers the first through hole 22a, so that the contact member 21 contacts the liquid in the first pipe 22 to conduct the temperature of the liquid in the first pipe 22 to the contact member 21, and the temperature is conducted to the temperature sensing member 31 through the contact member 21, thereby indirectly reducing the temperature of the temperature sensing member 31 through the liquid, and reducing the possibility that the temperature sensing member 31 is burned out.
The liquid flow-through device 20 is provided with a first fixing member and a first sealing member.
The first fixing member is disposed on the first tube 22 and is used to fix the contact member 21 to the first tube 22. In particular, the first fixing member may comprise at least one threaded part, and correspondingly, the first fixing member may further comprise a corresponding number of bolts. The threaded member may be fixedly disposed on the first tube 22 or integrally formed with the first tube 22. The contact member 21 may be provided with a corresponding number of fixing holes, and in particular, bolts may be inserted through the fixing holes and threadedly engaged with the threaded members to fix the contact member 21 to the first pipe 22.
The first sealing member is disposed between the first through hole 22a and the contact member 21, and is used for sealing a connection portion between the contact member 21 and the pipe body, and reducing a gap between the contact member 21 and the pipe body, thereby reducing a probability that liquid flows out through the connection portion between the contact member 21 and the pipe body. The first sealing element can be made of a material with better elasticity, such as silicon rubber, plastic and the like.
In the liquid circulation device 20, the first tube 22 has the second through hole 22b, and the liquid circulation device 20 further includes a first detection member disposed in the second through hole 22b and contacting with the fluid in the tube to detect the temperature of the fluid.
Specifically, the first detection member extends into the second through hole 22b, and comes into contact with the liquid, thereby detecting the temperature of the liquid. The first detecting element may be a device with a temperature collecting function, such as a PTC resistor (positive temperature coefficient resistor), an NTC resistor (negative temperature coefficient resistor) or other types of temperature sensors. The first detecting member may be electrically connected to an electronic component on the circuit board 30 to transmit the collected temperature.
The first tube 22 has a third through hole, and the liquid circulating device 20 further includes a second detecting member disposed in the third through hole and contacting with the liquid in the tube. The second detection member can be used for detecting various indexes of the liquid in the tube body, such as PH value, ion concentration, pollution turbidity and the like. The second detection member can be realized by an STD water quality induction sensor.
In one embodiment, the heating device 40 includes a heating tube 41 disposed on the liquid flow device 20, a liquid flow path is disposed inside the heating tube, and a heating coil is disposed on a surface of the heating tube for heating the liquid inside the heating tube 41.
The interior of the heating tube 41 forms a fluid flow path with the fluid flow device 20, and fluid flows from an output port of the fluid flow device 20 to an input port of the heating tube 41. The heating coil can be wound on a tubular base body in a coil winding mode, and materials with good heating performance can also be printed on the tubular base body in a printing mode. In this way, the heating device 40 can heat the liquid flowing through the heating pipe 41.
Further, as shown in fig. 5, a flow guiding element 411 is further disposed inside the heating pipe 41, and the flow guiding element 411 is spiral, so that a spirally extending fluid flow passage is formed inside the heating pipe 41. By providing the spiral-shaped flow-guiding member 411 inside the heating pipe 41, the time period of the liquid contacting the heating pipe 41 when flowing through the heating pipe 41 can be increased, thereby improving the heating effect of the heating pipe 41 on the liquid.
The heating device 40 further comprises a first connecting member 42, which is sleeved on the first end of the heating pipe 41 and is used for connecting the liquid flowing device 20 and the liquid flowing path of the heating pipe 41. The first connecting member 42 is provided with a third pipe body, one end of which extends into the first pipe body 22 of the liquid circulation device 20, and the other end of which is connected to the heating pipe 41, thereby forming a liquid circulation path. The first connecting member 42 is provided with a fixing member for fixing the joint of the third pipe body and the first pipe body 22 so that the third pipe body and the first pipe body are connected more firmly.
The heating device 40 further includes a second connecting member 43 sleeved at the second end of the heating pipe 41, and a liquid flowing path is formed inside the second connecting member for guiding the heated liquid out of the heating system 1. The second connector 43 is provided with a fourth pipe, and one end of the fourth pipe is connected to the heating pipe 41, so as to form a liquid flow path with the heating pipe 41. The second connecting member 43 may be made of a material with good heat resistance, such as metal, ceramic, glass, etc., so as to reduce the thermal deformation and expansion of the second connecting member 43 caused by the outflow of the heated liquid.
The heating tube 41 may be provided with a pad on which a temperature controller 44 is disposed. The temperature controller 44 may be used to detect the temperature of the heating pipe 41. The temperature controller 44 may mechanically control the heating coil to be energized or de-energized. In particular implementations, the temperature controller 44 may include a temperature-sensitive resilient member, such as a spring or spring made of a heat-sensitive metal.
When the temperature of the heating tube is lower than the temperature bearing interval of the elastic part, namely when the temperature of the heating tube is lower than a preset value, a power supply loop of the heating coil is conducted, and the elastic part does not perform elastic action.
When the temperature of the heating tube is higher than the temperature bearing interval of the elastic part, namely when the temperature of the heating tube is larger than or equal to a preset value, the elastic part disconnects the power supply loop of the heating coil through elastic action, so that the heating coil stops heating after power failure.
In addition, the temperature controller 44 may control the heating coil to be powered on or off in conjunction with the control circuit 32. In particular implementations, the temperature controller 44 may include a temperature sensor, a processing device, and a control device, and data is carried out via electrical connections between the temperature sensor, the processing device, and the control device. When the temperature sensor detects that the temperature of the heating tube is greater than or equal to a preset value, the processing device sends a first control signal to the control device so that the control device controls the heating coil to be powered off; when the temperature sensor detects that the temperature of the heating tube is smaller than a preset value, the processing device sends a second control signal to the control device, so that the control device controls the heating coil to be electrified.
The heating system can be applied to a water dispenser, and when the heating system is applied specifically, a container can be arranged in the water dispenser, and a water outlet of the container is connected with a liquid input device, so that liquid in the container is introduced into the heating system, and the liquid is heated by the heating system; the temperature sensing piece detects the temperature of circuit board to feed back to control circuit, control circuit when the temperature of circuit board is higher than the default, adjustment heating device's power to reduce heating device's calorific capacity, thereby reduce the temperature of circuit board, reduce the probability that the circuit board burns out because of long-term work and the circuit board that high temperature environment caused.
The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent structural changes made by using the contents of the specification and the drawings are included in the scope of the present application.
Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element, and that elements, features, or elements having the same designation in different embodiments may or may not have the same meaning as that of the other elements, and that the particular meaning will be determined by its interpretation in the particular embodiment or by its context in further embodiments.
In addition, although the terms "first, second, third, etc. are used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well. The terms "or" and/or "are to be construed as inclusive or meaning any one or any combination. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
Claims (10)
1. A heating system, comprising:
a liquid input device for introducing a liquid;
the temperature sensing element is electrically connected with the control circuit;
the liquid circulation device is arranged on the liquid input device and forms a liquid circulation passage with the liquid input device;
the heating device is arranged on the liquid circulation device, forms a liquid circulation passage with the liquid circulation device, and is also used for heating the liquid flowing through;
the heating device is also in conductive connection with the control circuit, and the temperature sensing piece is used for sensing the temperature of the circuit board and feeding back the temperature of the circuit board to the control circuit, so that the control circuit adjusts the heating power of the heating device according to the temperature of the circuit board.
2. The heating system of claim 1, wherein the liquid circulation device comprises:
a first pipe body having a passage through which a liquid flows, the pipe body being provided with a first through hole through which the liquid is allowed to flow;
the contact element is arranged on the first pipe body, covers the first through hole, is in contact with the liquid in the first pipe body, and is in contact with the temperature sensing piece and used for reducing the temperature of the temperature sensing piece.
3. The heating system of claim 1, wherein the heating device comprises: and the heating pipe is arranged on the liquid circulation device, a liquid circulation passage is arranged in the heating pipe, and a heating coil is arranged on the surface of the heating pipe and is used for heating the liquid in the heating pipe.
4. The heating system of claim 3, wherein a flow guide is further disposed within the heating tube, the flow guide being helical such that a helically extending fluid flow path is formed within the heating tube.
5. The heating system of claim 3, wherein the heating device further comprises a first connector disposed around the first end of the heating tube for connecting the liquid flow device and the liquid flow path of the heating tube.
6. The heating system of claim 3, wherein the heating device further comprises a second connecting member sleeved on the second end of the heating tube and having a liquid flow path therein for leading out the heated liquid.
7. The heating system of claim 1, wherein the liquid input device comprises a booster pump disposed at a liquid output port of the liquid input device.
8. The heating system of claim 7, wherein the liquid inlet device further comprises a second tube disposed on the booster pump, and a liquid flow path is provided in the second tube for allowing unidirectional flow of liquid to the booster pump.
9. The heating system of claim 2, wherein the first tube is provided with a second through hole;
the liquid circulating device further comprises a first detection piece which is arranged in the second through hole, is in contact with the fluid in the tube body and is used for detecting the temperature of the fluid.
10. The heating system of claim 2, wherein the first tube is provided with a third through hole;
the liquid circulation device further comprises a second detection piece which is arranged in the third through hole and is contacted with the liquid in the tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121648352.XU CN215959437U (en) | 2021-07-19 | 2021-07-19 | Heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121648352.XU CN215959437U (en) | 2021-07-19 | 2021-07-19 | Heating system |
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| Publication Number | Publication Date |
|---|---|
| CN215959437U true CN215959437U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121648352.XU Active CN215959437U (en) | 2021-07-19 | 2021-07-19 | Heating system |
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| CN (1) | CN215959437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173591A1 (en) * | 2022-03-18 | 2023-09-21 | 宁波西健医疗技术研究有限公司 | Perfusion liquid heater and control method therefor |
-
2021
- 2021-07-19 CN CN202121648352.XU patent/CN215959437U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173591A1 (en) * | 2022-03-18 | 2023-09-21 | 宁波西健医疗技术研究有限公司 | Perfusion liquid heater and control method therefor |
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