Liquid heating device capable of accurately detecting temperature

Abstract

The utility model relates to the technical field of liquid heating, and provides a liquid heating device with accurate temperature detection, which comprises a heating disc assembly for heating a container, and a temperature sensor for detecting the temperature of the container is arranged on the container; the heating disc assembly is provided with a clearance notch corresponding to the temperature sensor, and a heat insulation assembly is arranged on the outer side of the temperature sensor and prevents external heat from being transmitted to the temperature sensor in the detection process of the temperature sensor. The heat insulation assembly is arranged on the outer side of the temperature sensor, when the container is heated by the heating disc assembly and the temperature sensor detects the temperature of the container, the heat insulation assembly can prevent most heat of the heating disc assembly from being transmitted to the temperature sensor, and the temperature sensor can be relatively prevented from being interfered by external factors in the container temperature detection process; the temperature sensor detects the container temperature more accurately.

Description

Technical Field

[0001] This utility model relates to the field of liquid heating technology, specifically to a liquid heating device with accurate temperature detection. Background Technology

[0002] Existing liquid heating devices include a container with a cavity for holding liquid, a heating plate at the bottom of the container, and a temperature sensor for detecting the container temperature. The probe of the temperature sensor is exposed at the bottom of the container. When the container is heated, the probe of the temperature sensor is exposed, and the temperature of the heating plate will radiate heat to the temperature sensor, causing the temperature sensor to detect the container temperature inaccurately. The external temperature affects the detection accuracy of the temperature sensor.

[0003] Therefore, further improvements are needed. Utility Model Content

[0004] This invention proposes a liquid heating device with accurate temperature detection. By providing a heat insulation component on the outside of the temperature sensor, when the container is heated by the heating plate assembly, the heat insulation component can block most of the heat from the heating plate assembly from being transferred to the temperature sensor during the temperature sensor detection process. This can relatively avoid interference from external factors during the temperature sensor detection process, making the temperature sensor detect the container temperature more accurately.

[0005] A liquid heating device with accurate temperature detection designed for this purpose includes a heating plate assembly for heating a container, wherein the container is provided with a temperature sensor for detecting the container temperature; the heating plate assembly is provided with a clearance notch corresponding to the temperature sensor, and a heat insulation component is provided on the outside of the temperature sensor, which blocks the transfer of external heat to the temperature sensor during the temperature sensor detection process.

[0006] The temperature sensor includes a temperature detection probe that abuts against the container, and the heat insulation component includes a heat insulation sleeve that encloses the temperature detection probe of the temperature sensor, forming a first heat insulation barrier that prevents external heat from being transferred to the temperature detection probe.

[0007] The heat insulation component also includes a heat insulation element, which has a receiving groove. A heat insulation sleeve is installed in the receiving groove of the heat insulation element. The heat insulation element encloses the heat insulation sleeve and a temperature detection probe located on the heat insulation sleeve. The heat insulation element forms a second heat insulation barrier that prevents external heat from being transferred to the temperature detection probe.

[0008] The temperature sensor also includes a lead wire electrically connected to the temperature detection probe, and the heat insulation assembly also includes a heat insulation sleeve encasing the lead wire.

[0009] One end of the heat insulation component is limited and installed on the clearance notch of the heating plate assembly, and the other end of the heat insulation component is connected to the heating plate assembly;

[0010] The heat insulation component also includes a heat insulation layer disposed at the connection between the heat insulation component and the heating plate assembly. During the heating process of the heating plate assembly, the heat insulation layer prevents the heat of the heating plate assembly from being transferred to the heat insulation component.

[0011] The insulation component is provided with a first extension block corresponding to the clearance notch. The first extension block extends vertically and is disposed on the insulation component and abuts against the outer side of the bottom of the container.

[0012] The heat insulation component is provided with a second extension block corresponding to the heating plate assembly. The second extension block extends laterally on the heat insulation component. The heat insulation layer is limited between the second extension block and the heating plate assembly. The heating plate assembly, the heat insulation layer and the second extension block are provided with mounting holes for inserting fasteners so that the heating plate assembly, the heat insulation layer and the second extension block can be connected.

[0013] The second extension block is provided with a gasket, and fasteners are inserted into the gasket, the second extension block, the heat insulation layer and the heating plate assembly.

[0014] The heating plate assembly is provided with a connecting post, which extends vertically on the heating plate assembly. The connecting post is provided with a plug-in cavity for inserting fasteners. The heat insulation layer is provided with a plug-in groove, which is relatively limited on the outside of the connecting post. The second extension block of the heat insulation component abuts against the heat insulation layer.

[0015] The heating plate assembly, temperature sensor and heat insulation component are all located on the bottom of the container. The heating plate assembly includes a fixed plate and a heating element located on the fixed plate. A temperature controller is provided on the heating plate assembly.

[0016] The container has a base at the bottom, and the inner cavity of the base and the bottom of the container form an installation space for installing the heating plate assembly, temperature sensor and heat insulation components.

[0017] The beneficial technical effects of this utility model are as follows:

[0018] By providing a heat insulation component on the outside of the temperature sensor, when the container is heated by the heating plate assembly, the heat insulation component can block most of the heat from the heating plate assembly from being transferred to the temperature sensor during the temperature sensor's temperature detection process. This can relatively avoid interference from external factors during the temperature sensor's temperature detection process, making the temperature sensor's temperature detection of the container more accurate. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a three-dimensional structural diagram of a liquid heating device according to an embodiment of the present invention.

[0021] Figure 2This is a three-dimensional structural diagram of the bottom of a container according to an embodiment of the present invention.

[0022] Figure 3 This is an exploded view of the assembly structure of the heat insulation component at the bottom of the container according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of a container according to an embodiment of the present invention. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0025] See Figures 1-4 A liquid heating device with accurate temperature detection includes a heating plate assembly 2 for heating a container 1, and a temperature sensor 3 for detecting the temperature of the container 1 is provided on the container 1; the heating plate assembly 2 is provided with a clearance notch 4 corresponding to the temperature sensor 3, and a heat insulation component 5 is provided on the outside of the temperature sensor 3, which blocks the transfer of external heat to the temperature sensor 3 during the temperature detection process.

[0026] The heat insulation component 5 encloses the temperature sensor 3. During the process of detecting the temperature of container 1, the heat insulation component 5 prevents external heat from being transferred to the temperature sensor 3.

[0027] In this embodiment, the heating plate assembly 2 is provided with a clearance notch 4 corresponding to the temperature sensor 3. The temperature sensor 3 directly contacts the bottom of the container 1 through the clearance notch 4. The temperature sensor 3 does not contact the heating plate assembly 2. The temperature sensor 3 is an NTC temperature sensor.

[0028] In this embodiment, by providing a heat insulation component 5 on the outside of the temperature sensor 3, when the container 1 is heated by the heating plate assembly 2, during the process of the temperature sensor 3 detecting the temperature of the container 1, the heat insulation component 5 can block most of the heat from the heating plate assembly 2 from being transferred to the temperature sensor 3. This can relatively avoid the temperature sensor 3 being interfered with by external factors during the process of detecting the temperature of the container 1, and the temperature sensor 3 can detect the temperature of the container 1 more accurately.

[0029] The temperature sensor 3 includes a temperature detection probe 3.1 that abuts against the container 1. The heat insulation component 5 includes a heat insulation sleeve 6, which encloses the temperature detection probe 3.1 of the temperature sensor 3. The heat insulation sleeve 6 forms a first heat insulation barrier that prevents external heat from being transferred to the temperature detection probe 3.1.

[0030] In this embodiment, the heat insulation sleeve 6 is made of a high-temperature resistant heat insulation material, such as a silicone sleeve. The temperature detection probe 3.1 of the temperature sensor 3 is covered by the heat insulation sleeve 6.

[0031] The heat insulation component 5 also includes a heat insulation element 7, which has a receiving groove 8. The heat insulation sleeve 6 is installed in the receiving groove 8 of the heat insulation element 7. The heat insulation element 7 encloses the heat insulation sleeve 6 and the temperature detection probe 3.1 located on the heat insulation sleeve 6. The heat insulation element 7 forms a second heat insulation barrier that prevents external heat from being transferred to the temperature detection probe 3.1.

[0032] In this embodiment, a limiting step is provided in the receiving groove 8, and a limiting ring is provided on the outside of the heat insulation sleeve 6. After the temperature sensor 3 and the heat insulation sleeve 6 are assembled, the heat insulation sleeve 6 is installed in the receiving groove 8 of the heat insulation component 7, and the limiting ring abuts against the limiting step, so that the heat insulation sleeve 6 is limited to being installed in the receiving groove 8 of the heat insulation component 7. In this way, the heat insulation sleeve 6 is limited between the heat insulation component 7 and the bottom of the container 1, preventing the temperature sensor 3 and the heat insulation sleeve 6 from falling off the heat insulation component 7.

[0033] The temperature sensor 3 also includes a lead wire 3.2 electrically connected to the temperature detection probe 3.1, and the heat insulation component 5 also includes a heat insulation sleeve 14 encasing the lead wire 3.2.

[0034] In this embodiment, the heat insulation sleeve 14 is a fiberglass sleeve. Fiberglass sleeves have excellent properties such as fire resistance, heat insulation, electrical insulation, and flame retardancy. Their high temperature resistance is particularly outstanding, and they can generally withstand temperatures up to 600°C. Fiberglass sleeves are mainly composed of glass fiber and silicone. Some products may be woven from alkali-free glass fiber yarn or bulked yarn.

[0035] In this embodiment, the heat insulation sleeve 6 is provided with an inner cavity for encapsulating the temperature sensor 3 temperature detection probe 3.1. The heat insulation sleeve 14 can be interference-fitted with the inner cavity of the heat insulation sleeve 6 to fix the heat insulation sleeve 14. The heat insulation sleeve 14 wraps around the lead wire 3.2, which can protect the lead wire 3.2 and prevent the lead wire 3.2 from being affected by external factors.

[0036] One end of the heat insulation component 7 is limited and installed on the clearance notch 4 of the heating plate assembly 2, and the other end of the heat insulation component 7 is connected to the heating plate assembly 2;

[0037] The heat insulation component 5 also includes a heat insulation layer 9 disposed at the connection between the heat insulation component 7 and the heating plate assembly 2. During the heating process of the heating plate assembly 2, the heat insulation layer 9 blocks the heat of the heating plate assembly 2 from being transferred to the heat insulation component 7.

[0038] In this embodiment, the heat insulation component 7 is made of PET material. PET can be used for a long time in a temperature range of -70℃ to 120℃, and can withstand high temperatures of 150℃ for short-term use.

[0039] In this embodiment, since the heating plate assembly 2 generates heat when it heats up, in order to prevent the heat of the heating plate assembly 2 from being transferred to the heat insulation component 7, a heat insulation layer 9 is provided at the connection between the heating plate assembly 2 and the heat insulation component 7 to prevent direct contact between the heating plate assembly 2 and the heat insulation component 7.

[0040] The heat insulation component 7 is provided with a first extension block 7.1 corresponding to the clearance notch 4. The first extension block 7.1 extends vertically and is disposed on the heat insulation component 7 and abuts against the outer side of the bottom of the container 1.

[0041] In this embodiment, the clearance 4 restricts the movement of the heat insulation element 7 in the front and rear horizontal directions.

[0042] The heat insulation component 7 is provided with a second extension block 7.2 corresponding to the heating plate assembly 2. The second extension block 7.2 extends laterally on the heat insulation component 7. The heat insulation layer 9 is limited between the second extension block 7.2 and the heating plate assembly 2. The heating plate assembly 2, the heat insulation layer 9 and the second extension block 7.2 are provided with mounting holes 11 for inserting fasteners 10 so that the heating plate assembly 2, the heat insulation layer 9 and the second extension block 7.2 are connected.

[0043] In this embodiment, the fastener 10 is a screw, which fixes the heat insulation component 7 and the heat insulation layer 9 to the bottom of the heating plate assembly 2, restricting the vertical movement of the heat insulation component 7.

[0044] The second extension block 7.2 is provided with a gasket 12, and the fastener 10 is inserted into the gasket 12, the second extension block 7.2, the heat insulation layer 9 and the heating plate assembly 2.

[0045] In this embodiment, the heat insulation layer 9 is a nylon sleeve. Nylon material has heat resistance; some highly crystalline nylons (such as nylon 46) can be used for a long time at 150 degrees Celsius, and the heat distortion temperature of glass fiber reinforced nylon 66 can reach over 250 degrees Celsius.

[0046] The heating plate assembly 2 is provided with a connecting post 13, which extends vertically on the heating plate assembly 2 and has a plug-in cavity for inserting fasteners 10; the heat insulation layer 9 is provided with a plug-in groove 9.1, which is relatively limited on the outside of the connecting post 13, and the second extension block 7.2 of the heat insulation component 7 abuts against the heat insulation layer 9.

[0047] The heating plate assembly 2, temperature sensor 3 and heat insulation component 5 are all located on the bottom of container 1. The heating plate assembly 2 includes a fixed plate and a heating element located on the fixed plate. A temperature controller 15 is provided on the heating plate assembly 2.

[0048] In this embodiment, the heating element can be fixed to the fixed plate by welding.

[0049] The container 1 has a base 16 placed at the bottom, and the inner cavity of the base 16 and the bottom of the container 1 form an installation space for installing the heating plate assembly 2, the temperature sensor 3 and the heat insulation component 5.

Claims

1. A liquid heating apparatus with accurate temperature detection, comprising a heating plate assembly (2) for heating a container (1), characterized in that: The container (1) is provided with a temperature sensor (3) for detecting the temperature of the container (1); the heating disc assembly (2) is provided with an empty gap (4) corresponding to the temperature sensor (3), and a heat insulation component (5) is arranged outside the temperature sensor (3); and the heat insulation component (5) blocks the transmission of external heat to the temperature sensor (3) during the detection of the temperature sensor (3).

2. The liquid heating apparatus of claim 1, wherein: The temperature sensor (3) comprises a temperature detection probe (3.1) abutting against the container (1), and the heat insulation component (5) comprises a heat insulation sleeve (6) encapsulating the temperature detection probe (3.1) of the temperature sensor (3), and the heat insulation sleeve (6) forms a first heat insulation barrier for blocking the transmission of external heat to the temperature detection probe (3.1).

3. The liquid heating apparatus of claim 2, wherein: The heat insulation component (5) further comprises a heat insulation piece (7) provided with a receiving groove (8), and the heat insulation sleeve (6) is limitingly arranged in the receiving groove (8) of the heat insulation piece (7); the heat insulation piece (7) encapsulates the heat insulation sleeve (6) and the temperature detection probe (3.1) of the heat insulation sleeve (6), and the heat insulation piece (7) forms a second heat insulation barrier for blocking the transmission of external heat to the temperature detection probe (3.1).

4. The liquid heating apparatus of claim 2, wherein: The temperature sensor (3) further comprises a lead wire (3.2) electrically connected to the temperature detection probe (3.1), and the heat insulation component (5) further comprises a heat insulation sleeve (14) encapsulating the lead wire (3.2).

5. The liquid heating apparatus of claim 3, wherein: One end of the heat insulation piece (7) is limitingly arranged on the empty gap (4) of the heating disc assembly (2), and the other end of the heat insulation piece (7) is connected to the heating disc assembly (2). The heat insulation component (5) further comprises a heat insulation layer (9) arranged at the connecting position between the heat insulation piece (7) and the heating disc assembly (2), and the heat insulation layer (9) blocks the transmission of heat of the heating disc assembly (2) to the heat insulation piece (7) during the heating process of the heating disc assembly (2).

6. The liquid heating apparatus of claim 5, wherein: The heat insulation piece (7) is provided with a first extension block (7.1) corresponding to the empty gap (4), and the first extension block (7.1) is vertically arranged on the heat insulation piece (7) and abuts against the outside of the bottom of the container (1).

7. The liquid heating apparatus of claim 5, wherein: The heat insulation piece (7) is provided with a second extension block (7.2) corresponding to the heating disc assembly (2), and the second extension block (7.2) is horizontally arranged on the heat insulation piece (7); the heat insulation layer (9) is limitingly arranged between the second extension block (7.2) and the heating disc assembly (2); and a mounting hole (11) for inserting a fastener (10) is arranged between the heating disc assembly (2), the heat insulation layer (9) and the second extension block (7.2), so that the heating disc assembly (2), the heat insulation layer (9) and the second extension block (7.2) are connected.

8. The liquid heating apparatus of claim 7, wherein: The second extension block (7.2) is provided with a gasket (12), and the fastener (10) is inserted into the gasket (12), the second extension block (7.2), the heat insulation layer (9) and the heating disc assembly (2).

9. The liquid heating apparatus of claim 7, wherein: The heating disc assembly (2) is provided with a connecting column (13) vertically extending on the heating disc assembly (2), the connecting column (13) is provided with a plug-in cavity for inserting the fastener (10); the heat insulation layer (9) is provided with a plug-in slot (9.1), the plug-in slot (9.1) of the heat insulation layer (9) is oppositely limited on the outer side of the connecting column (13), and the second extension block (7.2) of the heat insulation piece (7) abuts against the heat insulation layer (9).

10. The liquid heating apparatus of claim 1, wherein: The heating disc assembly (2), the temperature sensor (3) and the heat insulation assembly (5) are arranged on the bottom of the container (1), the heating disc assembly (2) comprises a fixed disc and a heating body arranged on the fixed disc, and the heating disc assembly (2) is provided with a temperature controller (15); The bottom of the container (1) is provided with a base (16), and a mounting space for mounting the heating disc assembly (2), the temperature sensor (3) and the heat insulation assembly (5) is formed between the inner cavity of the base (16) and the bottom of the container (1).

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