A heater provided with a temperature sensing module

Abstract

The utility model relates to a kind of heater provided with temperature sensing module, including inner cavity component, bottom is equipped with installation port;Basket, place in the inner cavity component, for holding to be heated container;Detection port is equipped in the bottom of the basket;Heating component, including heating disc, sleeve and the temperature sensing module fixed in the sleeve upper end;The heating disc is fixed in the installation port, the sleeve is fixed in the heating disc, and it passes the installation port along axial direction, so that the temperature sensing module is contacted with the to-be-heated container by detection port;Water storage space, formed in the space surrounded by the bottom of the basket, the heating surface upper portion of the heating disc, the outer wall of the sleeve and the inner cavity component.The utility model embodiment avoids the temperature measurement interference of environmental heat source to sensor, also not by the influence of liquid amount in to-be-heated container, improves temperature measurement accuracy, guarantees heating effect stable, avoids liquid taste deterioration.

Description

Technical Field

[0001] This utility model relates to household appliances, specifically to a heater equipped with a temperature sensing module. Background Technology

[0002] Heaters for heating beverages, such as common bottle warmers, are equipped with temperature measuring devices, such as infrared sensors, to measure the temperature of the milk in the bottle. These sensors are typically installed beside the bottle, and their accuracy is affected by environmental interference and the liquid level. Firstly, because the infrared sensor and the bottle are not in direct contact (there is a gap between them and they share the same internal cavity), the hot air heating the bottle simultaneously heats the sensor, causing interference from ambient heat sources and preventing it from accurately reflecting the actual milk temperature. Secondly, when the milk volume is low and the liquid level is below the infrared sensor's position on the side of the bottle, the sensor can only sense the temperature of the empty upper part of the bottle, failing to obtain the true milk temperature, resulting in measurement inaccuracies. Similarly, heaters for heating other beverages and foods also have similar problems.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses a heater equipped with a temperature sensing module.

[0005] The technical solution adopted in this embodiment of the utility model is as follows: A heater equipped with a temperature sensing module, the heater comprising: The inner cavity assembly has an installation port at the bottom; A basket is placed in the inner cavity assembly to hold the container to be heated; a detection port is provided at the bottom of the basket. The heating assembly includes a heating plate, a sleeve, and a temperature sensing module fixed to the upper end of the sleeve; the heating plate is fixed to the mounting port, the sleeve is fixed to the heating plate and passes through the mounting port axially, so that the temperature sensing module contacts the container to be heated through the detection port; A water storage space is formed in the space enclosed by the bottom of the basket, the upper part of the heating surface of the heating plate, the outer wall of the sleeve, and the inner cavity assembly.

[0006] A further technical solution is that the heater further includes an isolation seal, which is installed circumferentially along the detection port of the basket and fills the gap between the outer wall of the sleeve and the edge of the detection port to form a sealing structure.

[0007] A further technical solution is that the outer periphery of the isolation seal includes two fitting rings and a receiving groove formed between the two fitting rings; the receiving groove engages with the edge of the detection port; and a sealing fit is formed between the outer wall of the sleeve and the inner periphery of the isolation seal.

[0008] A further technical solution is to provide a support frame inside the sleeve to support and fix the temperature sensing module to the top of the sleeve.

[0009] A further technical solution is that the support frame is fixed inside the sleeve and integrally formed with the sleeve.

[0010] A further technical solution is that the lower end of the support frame is fixed to the heating plate by a pressure plate, and the upper end of the support frame extends into the sleeve.

[0011] A further technical solution is that the temperature sensing module includes a circuit board and a temperature sensing probe; a first waterproof seal installed on the upper end of the sleeve seals the circuit board inside the sleeve, and the temperature sensing probe is exposed outside the first waterproof seal.

[0012] A further technical solution is that the heater also includes a second waterproof seal, which is assembled between the heating surface of the heating plate and the mounting port to seal and isolate the waterproof space on the back of the heating plate from the water storage space.

[0013] A further technical solution is that the electrical transmission line of the temperature sensing module enters the waterproof space on the back of the heating plate through a sleeve, and is connected to the power supply and signal device in the waterproof space.

[0014] A further technical solution is that the heater further includes a housing assembly and a base assembly fixed to the bottom of the housing assembly; the inner cavity assembly is installed in the housing assembly; a waterproof space is formed between the inner cavity assembly, the housing assembly and the base assembly; a power supply and signal device is installed in the waterproof space to provide power and control signals to the heater.

[0015] The beneficial effects of this utility model embodiment are as follows: In this embodiment of the invention, the temperature sensing module directly contacts the bottom of the container to be heated through the detection port at the bottom of the basket. Compared with the traditional infrared sensor installed on the side wall, it can avoid the interference of ambient heat source on the temperature measurement of the sensor, and is not affected by the amount of liquid in the container to be heated. Even if the liquid volume is small and the liquid level is low, it can still accurately sense the actual temperature of the liquid inside the container at the bottom, improve the accuracy of temperature measurement, ensure stable heating effect, and avoid the liquid taste from deteriorating.

[0016] In this embodiment of the utility model, the water storage space is formed by the bottom of the basket, the heating surface of the heating plate, the outer wall of the sleeve and the inner cavity components, forming an independent area with good sealing. The temperature sensing module is wrapped by the sleeve and does not directly contact water or steam, effectively avoiding water vapor corrosion and aging caused by liquid contact.

[0017] In this embodiment of the utility model, the hollow columnar structure of the support frame accommodates the electrical transmission lines of the temperature sensing module, guides the lines into the waterproof space on the back of the heating plate, and connects them to the power supply components, ensuring that the lines and electrical components are not affected by water vapor, avoiding the risk of short circuits and aging, and improving the safety of equipment operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the heater in an embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional view of the heater in an embodiment of the present invention.

[0020] Figure 3 This is a cross-sectional view of the inner cavity assembly and heating assembly in an embodiment of the present invention.

[0021] Figure 4 This is a cross-sectional view of the basket in an embodiment of the present utility model.

[0022] Figure 5 for Figure 2 An enlarged schematic diagram of the structure of part A in the middle.

[0023] Figure 6 This is an exploded cross-sectional view of the heating component in an embodiment of this utility model.

[0024] Figure 7 This is an exploded view of the heating component in an embodiment of the present invention from another direction.

[0025] In the diagram: 1. Inner cavity assembly; 101. Mounting port; 2. Basket; 201. Detection port; 202. Isolation seal; 3. Heating assembly; 301. Heating plate; 302. Sleeve; 303. Temperature sensing module; 304. Support frame; 305. First waterproof seal; 306. Second waterproof seal; 307. Pressure plate; 4. Water storage space; 5. Outer shell assembly; 6. Base assembly; 7. Power supply assembly; 8. Waterproof space. Detailed Implementation

[0026] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0028] This utility model discloses a heater equipped with a temperature sensing module. The heater is used in application scenarios that rely on water vapor heating and have clear requirements for temperature accuracy. For example, temperature control can be used to avoid burns, prevent the loss of nutrients at high temperatures, and ensure taste. In this embodiment, a baby bottle heater is used as an example. Those skilled in the art will know that a heater with a temperature sensing module can also be a baby food heater, a steam lunch box, etc.

[0029] Figure 1 This is a schematic diagram of the heater in an embodiment of the present invention. Figure 2 This is a cross-sectional view of the heater in an embodiment of this utility model. Figure 1 , Figure 2 As shown, the heater includes an inner cavity assembly 1, a basket 2, a heating element 3, and a water storage space 4. The basket 2 is used to hold the container to be heated, such as a baby bottle. The basket 2 is placed inside the inner cavity assembly 1. The heating element 3 is installed at the bottom of the inner cavity assembly 1. The water storage space 4 is used to hold water, which, under the action of the heating element 3, forms water vapor to heat the container to be heated in the basket 2.

[0030] Figure 3 This is a cross-sectional view of the inner cavity assembly and heating assembly in an embodiment of the present invention. (In conjunction with...) Figure 2 , Figure 3 The bottom of the inner cavity assembly 1 has an installation port 101, and the heating assembly 3 is fixed at the installation port 101 at the bottom of the inner cavity assembly 1. Figure 4 This is a cross-sectional view of the basket in an embodiment of this utility model. Figure 2 , Figure 4 As shown, the basket 2 is placed in the inner cavity assembly 1 and is used to hold the container to be heated. In this embodiment, the container to be heated is a baby bottle. A detection port 201 is provided at the bottom of the basket 2.

[0031] Figure 5 for Figure 2 An enlarged schematic diagram of the structure of part A in the middle. Figure 6 This is an exploded cross-sectional view of the heating component in an embodiment of this utility model. Figure 7 This is an exploded view of the heating assembly in an embodiment of the present invention from another direction. (See image below.) Figures 5-7 As shown, the heating assembly 3 includes a heating plate 301, a sleeve 302, and a temperature sensing module 303 fixed to the upper end of the sleeve 302. Combined with... Figure 2 The heating plate 301 is fixed at the mounting port 101, and the sleeve 302 is vertically fixed to the heating surface of the heating plate 301 and passes through the mounting port 101 axially upward, so that the temperature sensing module 303 contacts the container to be heated through the detection port 201. The sleeve 302 can be integrally formed with the heating plate 301, or it can be fixed to the heating plate 301 by screws or other fasteners. The temperature sensing module 303 is preferably an infrared sensor, but other sensors suitable for temperature detection can also be used.

[0032] The water storage space 4 is formed in the space enclosed by the bottom of the basket 2, the heating surface of the heating plate 301, the outer wall of the sleeve 302, and the inner cavity assembly 1.

[0033] In use, the heating surface of the heating plate 301 heats the water in the water storage space 4, generating steam. The steam passes through steam vents on the side wall of the basket 2 and contacts the outer wall of the container to be heated in the basket 2, thus heating it. Since the temperature sensing module 303 is in direct contact with the bottom of the container to be heated through the detection port 201, it can provide real-time and rapid feedback on the actual temperature of the liquid inside the container, resulting in more accurate temperature measurements and avoiding the problem of temperature being affected by the liquid level when measuring temperature on the side wall of the container. The water storage space 4 is enclosed by the bottom of the basket 2, the heating surface of the heating plate 301, the outer wall of the sleeve 302, and the inner cavity assembly 1. The space is compact and well-sealed. The temperature sensing module 303 is protected inside the sleeve 302 and does not directly contact water and steam, preventing the temperature sensing module 303 from being corroded by water vapor or aging due to long-term contact with liquid, thus extending the life of the core temperature sensing component.

[0034] Furthermore, such as Figure 2 , Figure 4 As shown, the heater also includes an isolation seal 202, which is installed along the detection port 201 of the basket 2 and fills the gap between the outer wall of the sleeve 302 and the edge of the detection port 201 to form a sealing structure. Specifically, the outer periphery of the isolation seal 202 includes two fitting rings and a receiving groove formed between the two fitting rings. The receiving groove engages with the edge of the detection port 201. A sealing fit is formed between the outer wall of the sleeve 302 and the inner periphery of the isolation seal 202.

[0035] The isolation seal 202 prevents high-temperature water vapor generated in the water storage space 4 from entering the basket 2 through the bottom gap, thus preventing the water vapor from directly affecting the temperature sensing module 303 at the bottom of the basket 2. Because of the isolation seal 202, after the container to be heated is placed, the bottom of the container covers the temperature sensing module 303, and water vapor only contacts the container from the side of the basket 2, further protecting the temperature sensing module 303 and preventing the temperature measured by the temperature sensing module 303 from being affected by the high-temperature water vapor. At the same time, the isolation seal 202 also keeps the position between the basket 2 and the sleeve 302 relatively fixed, reducing structural movement and ensuring that the temperature sensing module 303 always maintains stable contact with the bottom of the container to be heated.

[0036] Furthermore, the space enclosed by the sleeve 302 and the isolation seal 202 not only provides a seal to prevent water vapor from entering, but also encloses the location of the temperature sensing module 303. This structure effectively wraps around the temperature sensing module, thus also isolating it from external temperatures. This further prevents the temperature sensing module from being affected by external temperatures, increasing the accuracy of temperature measurement. Therefore, the sleeve 302 and the isolation seal 202 are preferably made of materials with low thermal conductivity.

[0037] Furthermore, such as Figures 5-7 As shown, a hollow cylindrical support frame 304 is provided inside the sleeve 302 to support and fix the temperature sensing module 303 to the top of the sleeve 302. The support frame 304 can be fixed inside the sleeve 302 and integrally formed with the sleeve 302. Optionally, the support frame 304 can also be a separate structure from the sleeve 302. The lower end of the support frame 304 is fixed to the back of the heating plate 301 by a pressure plate 307, and the upper end of the support frame 304 extends into the sleeve 302 and supports the temperature sensing module 303. The support frame 304 ensures that the temperature sensing probe of the temperature sensing module 303 always maintains stable contact with the bottom of the container to be heated. Furthermore, the electrical transmission line of the temperature sensing module 303 enters the waterproof space 8 on the back of the heating plate 301 through the hollow cylindrical structure of the support frame 304, and is connected to the power supply and signal device to provide power to the temperature sensing module 303, while transmitting the temperature measurement data and control signals of the temperature sensing module 303. The hollow columnar structure of the support frame 304 accommodates the electrical transmission lines of the temperature sensing module 303, providing a reasonable channel for internal wiring and protecting the temperature sensing module 303 and its electrical transmission lines from water vapor. The support frame 304 and the pressure plate 307 are also preferably made of materials with low thermal conductivity. They surround the space containing the temperature sensing module 303. This enclosed structure not only seals and isolates the temperature sensing module 303 from external high-temperature water vapor but also prevents the temperature sensing module 303 from being affected by the high temperature of external water vapor, increasing the accuracy of temperature measurement.

[0038] Furthermore, the temperature sensing module 303 includes a circuit board and a temperature sensing probe. A first waterproof seal 305, mounted on the upper end of the sleeve 302, seals the circuit board inside the sleeve 302, with the temperature sensing probe protruding from the first waterproof seal 305. The first waterproof seal 305 effectively prevents water vapor or condensate from entering the sleeve 302, avoiding short circuits or corrosion of the circuit board due to moisture or water ingress, thus extending the service life of the temperature sensing module 303. The temperature sensing probe protrudes from the first waterproof seal 305 to directly contact the container to be heated. While sealing the circuit board, the first waterproof seal 305 also limits and fixes the temperature sensing probe through its own structure, preventing loosening or displacement and ensuring that it always maintains effective contact with the container.

[0039] Furthermore, the heater also includes a second waterproof seal 306, which is fitted between the heating surface of the heating plate 301 and the mounting port 101, sealing and isolating the waterproof space 8 on the back of the heating plate 301 from the water storage space 4. The second waterproof seal 306 strictly seals and isolates the water storage space 4 from the waterproof space 8 on the back of the heating plate 301, preventing short circuits and component aging problems in the power supply and signal devices in the waterproof space 8, and also ensuring the safe operation of electrical components such as the heating wire on the back of the heating plate 301, reducing the risk of equipment failure.

[0040] like Figures 5-7 As shown, the assembly method of the heating component 3 can be as follows: First, the first waterproof seal 305 is fitted into the sleeve 302. Next, the temperature sensing module 303 is pressed in and passes through the first waterproof seal 305, leaving only the temperature sensing probe exposed. Then, the support frame 304 is installed inside the sleeve 302. Afterward, the pressure plate 307 is pressed onto the support frame 304, and the pressure plate 307 is fixed to the studs on the back of the heating plate 301 with screws. Simultaneously, due to the support of the support frame 304, the position of the temperature sensing module 303 is also relatively fixed inside the sleeve 302. The sleeve 302 shown in the figure is an integral structure fixed to the heating plate 301, while the support frame 304 is a separate structure. Optionally, the sleeve 302 can also be a separate structure, fixed to the heating plate 301 by fasteners. Optionally, the support frame 304 can be integrally formed with the sleeve 302. Finally, the second waterproof seal 306 is fixed to the contact gap between the heating plate 301 and the mounting port 101. Preferably, the support frame 304 and the pressure plate 307 are made of a heat-insulating material with poor thermal conductivity.

[0041] Combination Figure 1 , Figure 2Specifically, the heater also includes a housing assembly 5 and a base assembly 6 fixed to the bottom of the housing assembly 5. The base assembly 6 can be integrally formed with the housing assembly 5, or it can be fixed to the housing assembly 5 by clips or fasteners. The inner cavity assembly 1 is installed in the housing assembly 5. A waterproof space 8 is formed between the inner cavity assembly 1, the housing assembly 5, and the base assembly 6. The waterproof space 8 contains a power supply and signal device, which includes a power supply assembly 7 installed on the base assembly 6, and a control panel installed on the housing assembly 5. The power supply assembly 7 supplies power to the heating plate 301 and the control panel, and the control panel controls the temperature sensing module. A top cover is also placed above the basket 2 to cover the area where the container to be heated is located, ensuring that water vapor heats the container within the closed space.

[0042] When the heater is used as a bottle warmer, a certain amount of water is injected into the inner cavity assembly 1 before warming the milk. The corresponding function on the control panel is then activated. After activation, the heating plate 301 begins heating. Once the water in the inner cavity assembly 1 boils, steam is generated, which is then transferred to the milk through the outer wall of the bottle. The temperature sensing module 303 at the bottom of the bottle senses the temperature at the bottom and transmits this information to the display screen on the control panel via its electrical transmission line. When the temperature reaches the set value, the control panel controls the heating plate 301 to stop heating via a program. When the milk temperature drops below the set temperature, the control panel controls the heating plate 301 to start heating again via a program.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heater equipped with a temperature sensing module, characterized in that, The heater includes: The inner cavity assembly has an installation port at the bottom; A basket is placed in the inner cavity assembly to hold the container to be heated; a detection port is provided at the bottom of the basket. The heating assembly includes a heating plate, a sleeve, and a temperature sensing module fixed to the upper end of the sleeve; the heating plate is fixed to the mounting port, the sleeve is fixed to the heating plate and passes through the mounting port axially, so that the temperature sensing module contacts the container to be heated through the detection port; A water storage space is formed in the space enclosed by the bottom of the basket, the upper part of the heating surface of the heating plate, the outer wall of the sleeve, and the inner cavity assembly.

2. The heater equipped with a temperature sensing module according to claim 1, characterized in that, The heater also includes an isolation seal that is installed circumferentially along the detection port of the basket and fills the gap between the outer wall of the sleeve and the edge of the detection port to form a sealing structure.

3. The heater equipped with a temperature sensing module according to claim 2, characterized in that, The outer periphery of the isolation seal includes two fitting rings and a receiving groove formed between the two fitting rings; the receiving groove engages with the edge of the detection port; a sealing fit is formed between the outer wall of the sleeve and the inner periphery of the isolation seal.

4. The heater equipped with a temperature sensing module according to claim 1, characterized in that, A support frame is provided inside the sleeve to support and fix the temperature sensing module to the top of the sleeve.

5. The heater equipped with a temperature sensing module according to claim 4, characterized in that, The support frame is fixed inside the sleeve and is integrally formed with the sleeve.

6. The heater equipped with a temperature sensing module according to claim 4, characterized in that, The lower end of the support frame is fixed to the heating plate by a pressure plate, and the upper end of the support frame extends into the sleeve.

7. The heater equipped with a temperature sensing module according to claim 1, characterized in that, The temperature sensing module includes a circuit board and a temperature sensing probe; a first waterproof seal installed on the upper end of the sleeve seals the circuit board inside the sleeve, and the temperature sensing probe is exposed outside the first waterproof seal.

8. The heater equipped with a temperature sensing module according to claim 1, characterized in that, The heater also includes a second waterproof seal, which is fitted between the heating surface of the heating plate and the mounting port to seal and isolate the waterproof space on the back of the heating plate from the water storage space.

9. The heater equipped with a temperature sensing module according to claim 1, characterized in that, The electrical transmission line of the temperature sensing module enters the waterproof space on the back of the heating plate through a sleeve, and is connected to the power supply and signal device in the waterproof space.

10. The heater equipped with a temperature sensing module according to claim 1, characterized in that, The heater further includes a housing assembly and a base assembly fixed to the bottom of the housing assembly; the inner cavity assembly is installed in the housing assembly; a waterproof space is formed between the inner cavity assembly, the housing assembly and the base assembly; A power supply and signaling device is installed in the waterproof space to provide power and control signals to the heater.

Images