Heating base of anti-dry-burning electric kettle

Abstract

The utility model relates to an anti-dry-burning electric kettle heating base which comprises a base body, a heating disc assembly capable of heating an electric kettle is arranged in the base body, the heating disc assembly is connected with a trigger part, a trigger switch is further arranged in the base body, and the trigger switch is electrically connected with the heating disc assembly. The heating disc assembly is connected with a first elastic piece capable of generating upward thrust on the heating disc assembly, the trigger part abuts against the trigger switch to enable the trigger switch to be switched on so that the heating disc assembly can be started, or the trigger part is separated from the trigger switch through the first elastic piece to enable the trigger switch to be switched off so that the heating disc assembly can be shut down. The trigger part is matched with the trigger switch, so that the heating disc assembly can be shut down when the load bearing of the heating disc assembly is lower than the preset range, the dry burning prevention effect is achieved, potential safety hazards are eliminated, and the safety of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a heating base of an anti-dry-burning electric kettle. Background Art

[0002] The heating base can be used to heat portable electric kettles, health kettles and other water boiling equipment. The electric kettle can be placed on the heating base as needed to achieve a heating effect. The heating base generally includes a base body and a heating plate. When the electric kettle is placed on the heating base, the heating plate will heat the electric kettle.

[0003] However, when the heating plate is heating the electric kettle, it is easy for the electric kettle to dry-burn due to insufficient water, which may cause the product to have a safety hazard.

[0004] Therefore, further improvements are needed. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a heating base for an electric kettle with an anti-dry-burning function, so as to effectively avoid the occurrence of dry-burning and eliminate potential safety hazards.

[0006] The purpose of the utility model is achieved in this way:

[0007] A heating base for an anti-dry-burning electric kettle comprises a base body, a heating disc assembly capable of heating the electric kettle is arranged in the base body, the heating disc assembly is connected to a trigger part, a trigger switch is also arranged in the base body, the trigger switch is electrically connected to the heating disc assembly, the heating disc assembly is connected to a first elastic member capable of generating an upward thrust thereto, the trigger part abuts against the trigger switch to turn on the trigger switch to start the heating disc assembly, or the trigger part is separated from the trigger switch through the first elastic member to turn off the trigger switch to shut down the heating disc assembly.

[0008] As a specific solution, the trigger portion is arranged at the lower side of the heating plate assembly and extends downward, and the trigger switch is a micro switch, which is arranged at a vertically lower position of the trigger portion.

[0009] As a specific solution, a guide tube extending downward is provided on the lower side of the heating plate assembly, and a guide column corresponding to the guide tube is provided in the base body. The guide tube and the guide column are plugged and can flexibly cooperate with each other.

[0010] As a specific solution, the first elastic member is a spring, and the spring is arranged around the outside of the guide tube.

[0011] As a specific solution, a bracket is provided inside the base body, a circuit board cavity is formed between the lower side of the bracket and the bottom of the base body, and the guide column is connected and fixed to the bracket.

[0012] As a specific solution, a control circuit board is provided in the circuit board cavity, and the control circuit board is electrically connected to the heating disk assembly and the trigger switch respectively. The trigger switch is arranged in the circuit board cavity, and a connecting through hole is provided on the bracket for the conductor between the control circuit board and the heating disk assembly to pass through. The bracket is also provided with an avoidance through hole corresponding to the trigger part, and the trigger part can pass through the upper and lower sides of the bracket through the avoidance through hole.

[0013] As a specific solution, the heating plate assembly includes a heat conducting plate, to which a temperature sensing probe is connected. The temperature sensing probe is electrically connected to the heating plate assembly. A heat insulating frame is provided between the temperature sensing probe and the heat conducting plate, and the heat insulating frame is respectively connected and cooperated with the temperature sensing probe and the heat conducting plate.

[0014] As a specific solution, a second elastic member capable of exerting an upward thrust on the temperature sensing probe is connected to the outer side of the temperature sensing probe.

[0015] As a specific solution, the lower side of the second elastic member abuts against the trigger part, a limiting convex edge is provided on the outer side of the temperature sensing probe, and the upper side of the second elastic member abuts against the lower side of the limiting convex edge. The second elastic member can push the temperature sensing probe upward through the limiting convex edge until the upper side of the limiting convex edge abuts against the thermal insulation frame.

[0016] The beneficial effects of the utility model are:

[0017] The trigger part cooperates with the trigger switch to shut down the heating plate assembly when the load is lower than a preset range, thereby preventing dry burning, eliminating safety hazards and improving product safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A cross-sectional view of an embodiment of the present invention Figure 1 .

[0019] Figure 2 A cross-sectional view of an embodiment of the present invention Figure 2 .

[0020] Figure 3 Schematic diagram of the decomposition of the embodiment of the utility model Figure 1 .

[0021] Figure 4 Schematic diagram of the decomposition of the embodiment of the utility model Figure 2 .

[0022] Figure 5 It is an enlarged view of Example A of the present utility model. DETAILED DESCRIPTION

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

[0024] See also Figure 1-Figure 5 The anti-dry-burning electric kettle heating base includes a base body 1, a heating disk assembly 2 capable of heating the electric kettle is arranged in the base body 1, the heating disk assembly 2 is connected to a trigger part 3, a trigger switch 4 is also arranged in the base body 1, the trigger switch 4 is electrically connected to the heating disk assembly 2, and the heating disk assembly 2 is connected to a first elastic member 51 capable of generating an upward thrust thereto.

[0025] like Figure 2 As shown, when the amount of water in the electric kettle placed on the heating plate assembly 2 is greater than a preset value, the heating plate assembly 2 can squeeze the first elastic member 51 and move downward. At this time, the trigger part 3 abuts against the trigger switch 4 to turn on the trigger switch 4 to start the heating plate assembly 2.

[0026] like Figure 1 As shown, when the amount of water in the electric kettle placed on the heating disk assembly 2 is less than a preset value, the first elastic member 51 is reset and pushes the heating disk assembly 2 to move upward, and the trigger part 3 is separated from the trigger switch 4 through the first elastic member 51 so that the trigger switch 4 is disconnected to shut down the heating disk assembly 2, thereby preventing the heating disk assembly 2 from starting when the amount of water in the electric kettle is less than a preset value.

[0027] The trigger part 3 cooperates with the trigger switch 4 to shut down the heating disc assembly 2 when the load is lower than a preset range, thereby preventing dry burning, eliminating safety hazards, and improving product safety.

[0028] Furthermore, the trigger part 3 is arranged on the lower side of the heating plate assembly 2 and extends downward. The trigger switch 4 is a micro switch, which is arranged at the vertical lower position of the trigger part 3. The overall structure of the micro switch is simple, the operation is reliable, and it is not easy to fail.

[0029] Furthermore, a guide tube 21 extending downward is provided on the lower side of the heating plate assembly 2, and a guide column 11 corresponding to the guide tube 21 is provided in the base body 1. The guide tube 21 and the guide column 11 are plugged in and can cooperate with each other to improve the stability of the heating plate assembly 2 in the up and down directions.

[0030] Furthermore, the first elastic member 51 is a spring, and the spring is arranged around the outside of the guide tube 21. The guide tube 21 can also limit the spring and improve the stability of the spring expansion and contraction process.

[0031] Furthermore, a bracket 6 is provided inside the base body 1, and a circuit board cavity 61 is formed between the lower side of the bracket 6 and the bottom of the base body 1. The guide column 11 is connected and fixed to the bracket 6. The bracket 6 can optimize the internal space of the base body 1. The heating plate assembly 2 does not need to be connected and matched with the bottom of the base body 1, thereby simplifying the installation structure. Moreover, the bracket 6 can also have a certain heat insulation effect to protect the electrical components in the circuit board cavity 61.

[0032] Furthermore, a control circuit board 7 is provided in the circuit board cavity 61 . The control circuit board 7 is electrically connected to the heating disk assembly 2 and the trigger switch 4 , respectively. The trigger switch 4 can control the working state of the heating disk assembly 2 through the control circuit board 7 .

[0033] The trigger switch 4 is arranged in the circuit board cavity 61, and the bracket 6 is provided with a connecting through hole 62 for the conductor between the control circuit board 7 and the heating disk assembly 2 to pass through. The bracket 6 will not affect the normal electrical connection between the control circuit board 7 and the heating disk assembly 2.

[0034] The bracket 6 is also provided with an avoidance through hole 63 corresponding to the trigger part 3 , and the trigger part 3 can pass through the upper and lower sides of the bracket 6 through the avoidance through hole 63 , and the bracket 6 will not affect the vertical reciprocating movement of the trigger part 3 .

[0035] Furthermore, the heating plate assembly 2 includes a heat-conducting plate 22, to which a temperature sensing probe 8 is connected. The temperature sensing probe 8 is electrically connected to the heating plate assembly 2. A heat-insulating frame 9 is provided between the temperature sensing probe 8 and the heat-conducting plate 22. The heat-insulating frame 9 is respectively connected to the temperature sensing probe 8 and the heat-conducting plate 22. The temperature sensing probe 8 can measure the temperature of the bottom of the electric kettle and control the working state of the heating plate assembly 2 according to the temperature information, which can further prevent dry burning.

[0036] Furthermore, the outer side of the temperature sensing probe 8 is connected to a second elastic member 52 which can generate an upward thrust thereto, so that the contact effect between the temperature sensing probe 8 and the electric kettle is better, thereby further improving the accuracy of the temperature sensing probe 8 in detecting the temperature of the electric kettle.

[0037] Furthermore, the lower side of the second elastic member 52 abuts against the trigger part 3, and a limiting convex edge 81 is provided on the outer side of the temperature sensing probe 8. The upper side of the second elastic member 52 abuts against the lower side of the limiting convex edge 81. The second elastic member 52 can push the temperature sensing probe 8 to move upward through the limiting convex edge 81 until the upper side of the limiting convex edge 81 abuts against the thermal insulation frame 9, thereby preventing the temperature sensing probe 8 from falling off and improving the stability of the temperature sensing probe 8 during use.

[0038] The above embodiments are only preferred embodiments of the present invention, and the present invention may have other embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope set by the claims of this application.

Claims

1. A heating base for an electric kettle for preventing dry-burning, comprising a base body (1), wherein a heating plate assembly (2) capable of heating the electric kettle is arranged in the base body (1), wherein the heating plate assembly (2) is arranged in the base body (1), and wherein the heating plate assembly (2) is capable of heating the electric kettle. The heating disk assembly (2) is connected to a trigger portion (3), and a trigger switch (4) is also provided in the base body (1). The trigger switch (4) is electrically connected to the heating disk assembly (2), and the heating disk assembly (2) is connected to a first elastic member (51) capable of exerting an upward thrust on the heating disk assembly (2). The trigger portion (3) abuts against the trigger switch (4) so ​​that the trigger switch (4) is turned on to start the heating disk assembly (2), or the trigger portion (3) is separated from the trigger switch (4) through the first elastic member (51) so that the trigger switch (4) is turned off to stop the heating disk assembly (2).

2. The anti-dry-burning electric kettle heating base according to claim 1, characterized in that: The trigger portion (3) is arranged on the lower side of the heating plate assembly (2) and extends downwards, and the trigger switch (4) is a micro switch, which is arranged at a vertically lower position of the trigger portion (3).

3. The anti-dry-burning electric kettle heating base according to claim 1, characterized in that: A guide tube (21) extending downward is provided on the lower side of the heating plate assembly (2), and a guide column (11) corresponding to the guide tube (21) is provided in the base body (1), and the guide tube (21) and the guide column (11) are plugged and can flexibly cooperate with each other.

4. The anti-dry-burning electric kettle heating base according to claim 3, characterized in that: The first elastic member (51) is a spring, and the spring is arranged around the outside of the guide tube (21).

5. The anti-dry-burning electric kettle heating base according to claim 3, characterized in that: A bracket (6) is provided inside the base body (1), a circuit board cavity (61) is formed between the lower side of the bracket (6) and the bottom of the base body (1), and the guide column (11) is connected and fixed to the bracket (6).

6. The anti-dry-burning electric kettle heating base according to claim 5, characterized in that: A control circuit board (7) is provided in the circuit board cavity (61), and the control circuit board (7) is electrically connected to the heating plate assembly (2) and the trigger switch (4) respectively. The trigger switch (4) is arranged in the circuit board cavity (61). The bracket (6) is provided with a connecting through hole (62) for a conductor between the control circuit board (7) and the heating plate assembly (2) to pass through. The bracket (6) is also provided with an avoidance through hole (63) corresponding to the trigger part (3), and the trigger part (3) can pass through the upper and lower sides of the bracket (6) through the avoidance through hole (63).

7. The anti-dry-burning electric kettle heating base according to any one of claims 1 to 6, characterized in that: The heating plate assembly (2) comprises a heat conducting plate (22), a temperature sensing probe (8) being connected to the heat conducting plate (22), the temperature sensing probe (8) being electrically connected to the heating plate assembly (2), a heat insulating frame (9) being provided between the temperature sensing probe (8) and the heat conducting plate (22), the heat insulating frame (9) being connected and matched to the temperature sensing probe (8) and the heat conducting plate (22), respectively.

8. The anti-dry-burning electric kettle heating base according to claim 7, characterized in that: The outer side of the temperature sensing probe (8) is connected to a second elastic member (52) capable of exerting an upward thrust on the temperature sensing probe (8).

9. The anti-dry-burning electric kettle heating base according to claim 8, characterized in that: The lower side of the second elastic member (52) abuts against the trigger portion (3); a limiting convex edge (81) is provided on the outer side of the temperature sensing probe (8); the upper side of the second elastic member (52) abuts against the lower side of the limiting convex edge (81); the second elastic member (52) can push the temperature sensing probe (8) to move upwards through the limiting convex edge (81) until the upper side of the limiting convex edge (81) abuts against the thermal insulation frame (9).

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