Multifunctional probe and heating disc

Abstract

The utility model relates to a multifunctional probe and a heating disc, comprising a water level probe, the water level probe comprises a high water level conductive needle section, a middle water level conductive needle section and a low water level conductive needle section which are axially arranged along the height direction; insulating isolation needle sections are arranged between the high-water-level conductive needle section and the middle-water-level conductive needle section as well as between the middle-water-level conductive needle section and the low-water-level conductive needle section, and the high-water-level conductive needle section, the middle-water-level conductive needle section and the low-water-level conductive needle section are connected with first water-level outgoing lines; the electric kettle adopting the multifunctional probe can detect the high water level state, the medium water level state and the low water level state in the kettle, so that the water level detection precision is higher, and the electric kettle can meet more functional requirements.

Description

Technical Field

[0001] The utility model relates to the field of water level probes, in particular to a multifunctional probe and a heating plate. Background Art

[0002] At present, electric kettles are generally composed of a base and a kettle body, wherein the base is provided with a controller. When in use, the base and the controller of the kettle body can be connected by simply placing the kettle body on the base. However, in existing automatic water-adding electric kettles, generally only the lowest water level and the highest water level of the kettle body can be monitored, so only the function of adding water without water or the function of stopping water when the kettle is full of water can be realized. When the new function added to the electric kettle requires more precise water level control, the current water level detection function cannot meet the actual production needs, so it is necessary to propose a new probe structure for selection. Summary of the invention

[0003] The utility model aims to provide a multifunctional probe with simple and reasonable structure, convenient installation and stable structure.

[0004] A multifunctional probe comprises a water level probe, wherein the water level probe comprises a high water level conductive needle segment, a middle water level conductive needle segment and a low water level conductive needle segment which are axially arranged along a height direction, an insulating isolation needle segment is arranged between the high water level conductive needle segment and the middle water level conductive needle segment, and between the middle water level conductive needle segment and the low water level conductive needle segment, and a first water level lead wire is connected to the high water level conductive needle segment, the middle water level conductive needle segment and the low water level conductive needle segment.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, the joint ends of the high, middle and low water level conductive needle segments and the two insulating isolation needle segments are axially provided with external threaded connecting columns or internal threaded connecting holes, and the high water level conductive needle segment, the middle water level conductive needle segment and the low water level conductive needle segment are fastened to each other with the two insulating isolation needle segments through the threaded cooperation of the external threaded connecting columns and the internal threaded connecting holes.

[0007] As a further solution, the high, middle and low water level conductive needle segments and the two insulating isolation needle segments are all hollow sleeve structures of the same diameter. The hollow sleeve structures are interconnected to form a probe cavity with a closed top and an open bottom. The water level lead wires of the high and middle water level conductive needle segments are led out of the water level probe through the bottom of the probe cavity.

[0008] As a further solution, the high water level conductive needle segment, the middle water level conductive needle segment and the low water level conductive needle segment are made of metal materials, and the insulating isolation needle segment is made of insulating materials, and the insulating materials include plastics, glass and ceramics.

[0009] As a further solution, a containing cavity is provided in the low water level conductive needle section, and an NTC temperature sensing element is encapsulated in the containing cavity, and two temperature sensing lead wires are connected to the NTC temperature sensing element.

[0010] A heating plate comprises a heating plate body for an electric kettle, on which the multifunctional probe is installed.

[0011] As a further solution, a controller is also included, and a second water level lead wire is connected to the heating disk body. The heating disk body serves as an electrode for TDS water quality detection and is electrically connected to the controller through the second water level lead wire; the low water level conductive needle segment serves as another electrode for TDS water quality detection and is electrically connected to the controller through the first water level lead wire.

[0012] As a further solution, the first water level lead wires of the high water level conductive needle segment and the middle water level conductive needle segment are electrically connected to the controller, and the two temperature sensing lead wires of the NTC temperature sensing element are electrically connected to the controller.

[0013] As a further solution, an assembly through hole is opened on the heating plate body, the lower part of the low water level conductive needle segment is inserted into the assembly through hole, and an insulating spacer assembly is provided in the assembly through hole and placed between the heating plate body and the low water level conductive needle segment.

[0014] As a further solution, a wiring terminal is provided on the first water level lead-out line of the low water level conductive needle segment, and a sleeve hole is opened on the wiring terminal. An external threaded portion is opened at the bottom of the low water level conductive needle segment, and the external threaded portion is inserted into the sleeve hole. Two nuts are connected to the external threaded portion, and the wiring terminal is limited between the two nuts.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model provides a multifunctional probe and a heating plate. An electric kettle using this water level probe can detect the high water level state, the middle water level state and the low water level state in the kettle through the high, middle and low water level conductive needle sections arranged at the insulating intervals, thereby realizing the water level detection function, and the water level detection accuracy is higher, so that the electric kettle can meet more functional needs.

[0017] Secondly, an NTC temperature sensing element is arranged in the low water level conductive needle section, and the water temperature in the kettle is detected by the NTC temperature sensing element, so that the water level probe has the water temperature detection function. In addition, an electrical circuit is formed between the heating plate and the low water level conductive needle section through the water body as the medium, and the TDS water quality is detected by analyzing the feedback signal by the controller, so that the water level probe also has the water quality detection function, thereby making the water level probe multifunctional, the layout of the water level probe more reasonable, and the integrity better, and the assembly process can be suitable for automated production, saving assembly time and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an embodiment of a water level probe in the utility model.

[0019] Figure 2 It is a schematic diagram of the cross section and exploded structure of the water level probe in the utility model.

[0020] Figure 3 This is a schematic diagram of the matching structure of the water level probe and the heating plate in the utility model.

[0021] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0022] Figure 5 This is a schematic diagram of the exploded structure of the water level probe and the heating plate in the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1 and Figure 2 As shown, a multifunctional probe includes a water level probe 1, wherein the water level probe 1 includes a high water level conductive needle segment 2, a middle water level conductive needle segment 3 and a low water level conductive needle segment 4 which are axially arranged along the height direction, an insulating isolation needle segment 5 is arranged between the high water level conductive needle segment 2 and the middle water level conductive needle segment 3, and between the middle water level conductive needle segment 3 and the low water level conductive needle segment 4, and a first water level lead wire 6 is connected to the high water level conductive needle segment 2, the middle water level conductive needle segment 3 and the low water level conductive needle segment 4.

[0025] The electric kettle using this water level probe can detect the high water level state, medium water level state and low water level state in the kettle through the high, medium and low water level conductive needle segments set at each insulating interval, thereby realizing the water level detection function, and the water level detection accuracy is higher, so that the electric kettle can meet more functional needs.

[0026] The joint ends of the high, middle and low water level conductive needle segments and the two insulating isolation needle segments 5 are axially provided with external threaded connecting columns 71 or internal threaded connecting holes 72. The external threaded connecting columns 71 and the internal threaded connecting holes 72 are threadedly matched to achieve the mutual fastening connection between the high water level conductive needle segment 2, the middle water level conductive needle segment 3 and the low water level conductive needle segment 4 and the two insulating isolation needle segments 5.

[0027] The high, medium and low water level conductive needle segments and the two insulating isolation needle segments 5 can be separated into multiple independent structures for assembly through external threaded connecting columns 71 or internal threaded connecting holes 72, thereby improving flexibility. Manufacturers can adjust the number or length of water level conductive needle segments or insulating isolation needle segments 5 according to different customer needs.

[0028] The high, medium and low water level conductive needle segments and the two insulating isolation needle segments 5 are all hollow sleeve structures with the same diameter. The hollow sleeve structures are interconnected to form a probe inner cavity 101 with a closed top and an open bottom. The water level lead wires of the high and medium water level conductive needle segments 3 are led out of the water level probe 1 through the bottom of the probe inner cavity 101; so that each lead wire can be led out of the water level probe 1 through the probe inner cavity 101 separated from the water body.

[0029] In this embodiment, the top of the high-water-level conductive needle segment is a closed structure, thereby closing the top of the probe inner cavity 101. In more embodiments, the high-water-level conductive needle segment can be a hollow sleeve structure that passes through in a straight line, but a sealing member is installed at the top opening of the high-water-level conductive needle segment, and the top of the high-water-level conductive needle segment is closed by the sealing member.

[0030] The high water level conductive needle segment 2, the middle water level conductive needle segment 3 and the low water level conductive needle segment 4 are made of metal materials, which may be conductive materials such as iron, copper, and stainless steel; the insulating isolation needle segment 5 is made of insulating materials, which include plastic, glass, and ceramics; the insulating isolation needle segment 5 can insulate and isolate multiple water level conductive needle segments without interfering with each other, thereby improving the detection accuracy, and can increase the height of the high water level conductive needle segment 2 or the middle water level conductive needle segment 3.

[0031] The low water level conductive needle section 4 is provided with a housing cavity 401, which may be a part of the probe inner cavity 101. The housing cavity 401 encapsulates an NTC temperature sensing element 8, and the diameter of the housing cavity 401 is larger than the probe inner cavity 101. After the NTC temperature sensing element 8 is assembled, glue, filler, or epoxy resin is encapsulated in the housing cavity 401 to fix the NTC temperature sensing element 8 and the first water level lead wire 6, and two temperature sensing lead wires 9 are connected to the NTC temperature sensing element; an NTC temperature sensing element is provided in the low water level conductive needle section 4, and the water temperature in the kettle is detected by the NTC temperature sensing element, so that the water level probe has a water temperature detection function.

[0032] A heating plate, such as Figures 3 to 5 As shown, it includes a heating plate body 10 for an electric kettle, and the heating plate body 10 is installed with the multifunctional probe.

[0033] A controller 12 is also included. A second water level lead wire 11 is connected to the heating disk body 10. The heating disk body 10 serves as an electrode for TDS water quality detection and is electrically connected to the controller 12 through the second water level lead wire 11; the low water level conductive needle segment 4 serves as another electrode for TDS water quality detection and is electrically connected to the controller 12 through the first water level lead wire 6; an electrical circuit is formed between the heating disk and the low water level conductive needle segment through the water body as the medium, which can form a low water level detection circuit on the one hand, and detect the TDS water quality of the medium by analyzing the feedback signal using the controller on the other hand, so that the water level probe also has a water quality detection function, thereby making the water level probe have multifunctional characteristics.

[0034] The first water level lead wires 6 of the high water level conductive needle segment 2 and the middle water level conductive needle segment 3 are electrically connected to the controller 12, and the two temperature sensing lead wires 9 of the NTC temperature sensing element 8 are electrically connected to the controller 12; so that a middle water level or high water level detection circuit is formed between the high water level conductive needle segment 2 and the middle water level conductive needle segment 3 and the heating plate respectively.

[0035] The heating plate body 10 is provided with an assembly through hole 1001, the lower part of the low water level conductive needle segment 4 is inserted into the assembly through hole 1001, and an insulating spacer assembly is provided in the assembly through hole 1001 and placed between the heating plate body 10 and the low water level conductive needle segment 4; the low water level conductive needle segment 4 is insulated and isolated from the heating plate body 10 by the insulating spacer assembly.

[0036] A wiring terminal 13 is provided on the first water level lead-out line 6 of the low water level conductive needle segment 4, and a sleeve hole 131 is provided on the wiring terminal 13. An external threaded portion 402 is provided at the bottom of the low water level conductive needle segment 4, and the external threaded portion 402 is inserted into the sleeve hole 131. Two nuts 14 are connected to the external threaded portion 402, and the wiring terminal 13 is limited between the two nuts 14.

[0037] The insulating spacer assembly includes a waterproof rubber ring 15 and a bakelite gasket 16. The waterproof rubber ring 15 is sleeved on the lower part of the low-water-level conductive needle section 4 and placed in the assembly through hole 1001. A waterproof flange 151 extends from the top along the surface of the heating plate body 10. The middle part of the low-water-level conductive needle section 4 extends to a limiting ring 41 pressed against the waterproof flange 151. The bakelite gasket 16 is placed under the heating plate body 10 and sleeved on the bottom of the waterproof rubber ring 15.

[0038] In addition, the low water level conductive needle section 4 is also sleeved with a stainless steel gasket 17 and an elastic medium 18 in sequence. After the upper thread 14 and the outer thread portion 402 are fastened, the stainless steel gasket 17 and the elastic medium 18 are clamped between the bakelite gasket 16 and the upper thread 14 .

[0039] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A multifunctional probe, comprising a water level probe (1), characterized in that: The water level probe (1) comprises a high water level conductive needle segment (2), a middle water level conductive needle segment (3) and a low water level conductive needle segment (4) which are arranged axially in a height direction; an insulating isolation needle segment (5) is arranged between the high water level conductive needle segment (2) and the middle water level conductive needle segment (3), and between the middle water level conductive needle segment (3) and the low water level conductive needle segment (4); and a first water level lead wire (6) is connected to the high water level conductive needle segment (2), the middle water level conductive needle segment (3) and the low water level conductive needle segment (4).

2. A multifunctional probe according to claim 1, characterized in that: The joint ends of the high, medium and low water level conductive needle segments and the two insulating isolation needle segments (5) are axially provided with external threaded connection columns (71) or internal threaded connection holes (72), and the high water level conductive needle segment (2), the medium water level conductive needle segment (3) and the low water level conductive needle segment (4) are mutually fastened and connected with the two insulating isolation needle segments (5) by means of threaded engagement of the external threaded connection columns (71) and the internal threaded connection holes (72).

3. A multifunctional probe according to claim 1, characterized in that: The high, medium and low water level conductive needle segments and the two insulating isolation needle segments (5) are all hollow sleeve structures with the same diameter. The hollow sleeve structures are interconnected to form a probe inner cavity (101) with a closed top and an open bottom. The water level lead wires of the high and medium water level conductive needle segments (3) are led out of the water level probe (1) through the bottom of the probe inner cavity (101).

4. A multifunctional probe according to claim 1, characterized in that: The high water level conductive needle segment (2), the middle water level conductive needle segment (3) and the low water level conductive needle segment (4) are made of metal material, and the insulating isolation needle segment (5) is made of insulating material, which includes plastic, glass and ceramic.

5. A multifunctional probe according to any one of claims 1 to 4, characterized in that: The low-water-level conductive needle section (4) is provided with a housing cavity (401), the housing cavity (401) encapsulates an NTC temperature sensing element (8), and the NTC temperature sensing element is connected to two temperature sensing lead wires (9).

6. A heating plate, comprising a heating plate body (10) for an electric kettle, characterized in that: The multifunctional probe according to claim 5 is mounted on the heating disk body (10).

7. A heating plate according to claim 6, characterized in that : It also includes a controller (12), the heating disc body (10) is connected to a second water level lead wire (11), the heating disc body (10) is used as an electrode for TDS water quality detection and is electrically connected to the controller (12) through the second water level lead wire (11); the low water level conductive needle section (4) is used as another electrode for TDS water quality detection and is electrically connected to the controller (12) through the first water level lead wire (6).

8. A heating plate according to claim 7, characterized in that: The first water level lead wires (6) of the high water level conductive needle section (2) and the middle water level conductive needle section (3) are electrically connected to the controller (12), and the two temperature sensing lead wires (9) of the NTC temperature sensing element (8) are electrically connected to the controller (12).

9. A heating plate according to claim 6, characterized in that The heating plate body (10) is provided with an assembly through hole (1001), the lower part of the low water level conductive needle segment (4) is inserted into the assembly through hole (1001), and an insulating spacer assembly is provided in the assembly through hole (1001) and is placed between the heating plate body (10) and the low water level conductive needle segment (4).

10. A heating plate according to claim 6, characterized in that A wiring terminal (13) is provided on the first water level lead-out line (6) of the low water level conductive needle section (4), the wiring terminal (13) is provided with a sleeve hole (131), an external threaded portion (402) is provided at the bottom of the low water level conductive needle section (4), the external threaded portion (402) is inserted into the sleeve hole (131), two nuts (14) are connected to the external threaded portion (402), and the wiring terminal (13) is limited between the two nuts (14).

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