Waterproof automatic heating and heat preservation device

Abstract

According to the waterproof automatic heating and heat preservation device, a sealing rubber sleeve is arranged, a touch control support is arranged on the sealing rubber sleeve, a control switch is arranged below the touch control support, when a container is placed on the upper end face of a fixing base, the touch control support can be touched, and downward acting force is applied to the touch control support; the touch support tends to move downwards, the sealing rubber sleeve is stressed to deform downwards to drive the touch support to move downwards, the touch support moves downwards to abut against an elastic piece of the control switch, the control switch is switched on, and external mains supply can flow into the heating disc assembly to heat or preserve heat of the container. When the container is taken away, the sealing rubber sleeve restores to the original state under the action of self elasticity, the touch control support is driven to move upwards, the lower end of the touch control support is separated from the control switch, the control switch is switched off, and the heating disc assembly is powered off to stop heating. And the service life of equipment is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of heat preservation and heating technology, and in particular relates to a waterproof automatic heating and heat preservation device. Background Technology

[0002] A thermos flask is a household appliance that heats water at a low power to maintain a constant temperature. Normally, the flask is placed on a heating base and manually turned on to keep the water warm. However, this manual operation is cumbersome. Therefore, a new type of thermos flask has been developed. This new type has a perforated heating base with a retractable switch button. When the flask is placed on the base and the switch button is pressed down, the base is powered on to heat or keep the water warm. When the flask is removed, the switch button automatically pops up, turning off the power. However, this new type of thermos flask has a drawback: the perforation on the heating base allows water to seep into the appliance through the perforation, potentially causing internal dampness, short circuits, and damage. Summary of the Invention

[0003] (a) Purpose of the utility model

[0004] In order to overcome the above shortcomings, the purpose of this utility model is to provide a waterproof automatic heating and heat preservation device to solve the technical problem that water can easily seep into the appliance through the opening of the existing thermos kettle, causing the appliance to be damp and short-circuited, and easily damaged.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution provided in this application is as follows:

[0007] A waterproof automatic heating and heat preservation device includes: a fixed base; a heating plate assembly disposed on the upper surface of the fixed base, the heating plate assembly having a through hole; an elastic sealing sleeve covering the through hole; a touch bracket passing through the sealing sleeve, the upper end of which protrudes from the through hole and can move downward when a container is placed on the upper surface of the fixed base and a downward force is applied to it, causing the sealing sleeve to deform downward; or when the container is removed and the sealing sleeve returns to its original state, the touch bracket can move upward by the touch bracket; a control switch disposed on the fixed base and located below the touch bracket, electrically connected to the heating plate assembly, and can be abutted by the lower end of the downwardly moving touch bracket to activate the heating plate assembly to heat or preserve the container; or it can be disengaged from the lower end of the upwardly moving touch bracket to control the heating plate assembly to stop heating.

[0008] By setting a sealing sleeve and a touch bracket on the sealing sleeve, with a control switch below the touch bracket, when the container is placed on the upper surface of the fixed base, it will touch the touch bracket, applying a downward force. The touch bracket will tend to move downward, and the sealing sleeve will deform downward under the force, moving the touch bracket downward. When the touch bracket moves to the predetermined position, the lower end of the touch bracket will abut against the spring of the control switch, turning on the control switch and allowing external mains power to flow into the heating plate assembly to heat or keep the container warm. When the container is removed, the sealing sleeve returns to its original state under its own elasticity, moving the touch bracket upward. The lower end of the touch bracket disengages from the control switch, the control switch is turned off, and the heating plate assembly is de-energized and stops heating. Because the sealing sleeve has a through hole, water accumulated at the bottom of the container can be prevented from seeping into the equipment through the through hole, ensuring the service life of the equipment.

[0009] In some embodiments, it further includes: an NTC thermistor disposed on the upper end of the touch support and passing through the through hole to contact the bottom of the container; the heating plate assembly includes: a heating plate and a PCB power board electrically connected to the heating plate, wherein the PCB power board is also electrically connected to the NTC thermistor for controlling the heating plate to start and stop and adjusting the heating plate to a heating mode or a heat preservation mode according to the resistance value of the NTC thermistor.

[0010] By setting an NTC thermistor, the NTC thermistor detects the temperature of the container in real time and sends a temperature signal to the PCB power board. If the container is empty or the liquid has boiled away but the heating plate continues to heat, the temperature at the bottom of the container will rise rapidly. When the PCB power board detects that the temperature at the bottom of the container has risen beyond a preset range, the PCB power board will disconnect from the external power supply and stop the heating plate from heating. This prevents dry burning and provides overheat protection. At the same time, the NTC thermistor can also detect the temperature of the liquid in the container in real time and send a signal to the PCB power board. The PCB power board can then control the heating power of the heating plate and adjust the heating power accordingly.

[0011] In some embodiments, the sealing sleeve has a hollow, open-end portion in the middle for the NTC thermistor and the touch bracket to pass through.

[0012] In some embodiments, the sealing sleeve protrudes upward on one side of the bottom surface of the heating plate assembly to form a waterproof rib that abuts against the heating plate assembly.

[0013] By setting waterproof ribs that abut against the bottom surface of the heating plate assembly, water can be prevented from entering the device through the through holes.

[0014] In some embodiments, the fixing seat extends vertically to form a sleeve corresponding to the position of the through hole, and the sealing sleeve has an embedding groove on one side edge of the sleeve that fits into the upper edge of the sleeve.

[0015] The sealing sleeve fits onto the edge of the sleeve of the fixing base, and the touch bracket passes through the sealing sleeve. This not only makes installation convenient, but also prevents the touch bracket from affecting the deformation process of the sealing sleeve, thus ensuring the elasticity of the sealing sleeve.

[0016] In some embodiments, the touch support extends radially outward to form a locking portion, and the fitting portion has a slot for the locking portion to be inserted at a position corresponding to the locking portion;

[0017] By engaging the locking part of the touch bracket into the slot of the sealing sleeve, the stability of the assembly of the touch bracket and the sealing sleeve is ensured. Attached Figure Description

[0018] Figure 1 This is a diagram showing the container of this utility model placed on a waterproof automatic heating and heat preservation device;

[0019] Figure 2 This is a structural schematic diagram of the waterproof automatic heating and heat preservation device of this utility model;

[0020] Figure 3 This is a cross-sectional view of the waterproof automatic heating and heat preservation device of this utility model;

[0021] Figure 4 This is an exploded view of the waterproof automatic heating and heat preservation device of this utility model;

[0022] Figure 5 This is an assembly diagram of the sealing sleeve, touch bracket, and control switch in the waterproof automatic heating and heat preservation device of this utility model;

[0023] Figure 6 This is a cross-sectional view of the waterproof automatic heating and heat preservation device of this utility model after the sealing sleeve, touch bracket and control switch are assembled.

[0024] Figure 7 This is an exploded view of the sealing sleeve, touch bracket, and control switch assembled in the waterproof automatic heating and heat preservation device of this utility model.

[0025] Figure 8 This is a schematic diagram of the sealing sleeve in the waterproof automatic heating and heat preservation device of this utility model;

[0026] Figure 9 This is a cross-sectional view of the sealing sleeve in the waterproof automatic heating and heat preservation device of this utility model.

[0027] Figure label:

[0028] 1. Mounting base; 101. Base; 1011. Sleeve; 102. Heating plate fixing ring; 2. Heating plate assembly; 201. Through hole; 3. Sealing sleeve; 301. Rib; 302. Fitting part; 3021. Slot; 303. Embedding groove; 4. Touch bracket; 401. Fitting part; 5. Control switch; 6. NTC thermistor; 7. Container. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0030] This utility model provides a waterproof automatic heating and heat preservation device, comprising: a fixed base 1, a heating plate assembly 2 disposed on the upper surface of the fixed base 1, the heating plate assembly 2 having a through hole 201, a sealing sleeve 3 covering the through hole 201 and having elasticity, a touch bracket 4 passing through the sealing sleeve 3, the upper end of which protrudes from the through hole 201, and can move downward when a container 7 is placed on the upper surface of the fixed base 1 and a downward force is applied to it, causing the sealing sleeve 3 to deform downward, or when the container 7 is removed and the sealing sleeve 3 returns to its original state, it can be driven upward by the sealing sleeve 3, and a control switch 5 disposed on the fixed base 1 and located below the touch bracket 4, electrically connected to the heating plate assembly 2 and an external power supply, and can be connected by the lower end of the downwardly moving touch bracket 4 to turn on the heating plate assembly 2 to heat or keep the container 7, or disengage from the lower end of the upwardly moving touch bracket 4 to control the heating plate assembly 2 to stop heating.

[0031] Specifically, container 7 can be any heat-conducting container 7, such as a milk tea cup, a water cup, or a baby bottle.

[0032] Specifically, control switch 5 is a micro switch.

[0033] Specifically, the heating plate assembly 2 includes a heating plate panel and a heating tube disposed below the heating plate panel. The heating tube generates heat and conducts the temperature to the heating plate panel to heat or keep the liquid in the container 7 warm.

[0034] Specifically, the fixing base 1 includes a base 101 and a heating plate fixing ring 102. The heating plate fixing ring 102 is connected to the base 101 to fix the heating plate to the base 101. Specifically, the heating plate fixing ring 102 forms a receiving cavity for placing the container 7.

[0035] Specifically, the base 101 extends vertically to form a sleeve 1011 with openings at both ends, corresponding to the position of the through hole 201. The sealing sleeve 3 has an embedding groove 303 on one side edge of the sleeve 1011 that fits into the upper edge of the sleeve 1011. The sealing sleeve 3 has a fitting part 302 with openings at both ends and hollow in the middle, for the touch bracket 4 to pass through and be fixed.

[0036] Specifically, the upper end of the touch support 4 protrudes from the heating plate assembly 2. When the container 7 is placed on the upper surface of the fixed base 1, it will touch the upper end of the touch support 4, generating a downward force on the touch support 4. At this time, the sealing sleeve 3 will deform downward under the force, causing the touch support 4 to move downward. The lower end of the touch support 4 abuts against the spring of the control switch 5, turning on the control switch 5. One end of the control switch 5 is connected to the mains power. After the control switch 5 is turned on, the external mains power can enter the heating plate assembly 2 through the control switch 5. The heating plate assembly 2 heats or keeps the container 7 warm. When the container 7 is removed, the sealing sleeve 3 returns to its original state under its own elastic force, causing the touch support 4 to move upward. The lower end of the touch support 4 disengages from the spring of the control switch 5, the spring of the control switch 5 pops open, the control switch 5 is turned off, the mains power does not enter the heating plate assembly 2, and the heating plate assembly 2 stops heating.

[0037] Preferably, this application also includes an NTC thermistor 6 at the upper end of the touch bracket 4, which passes through the through hole 201 and contacts the bottom of the container 7. Specifically, the heating plate assembly 2 includes a heating plate and a PCB power board. The PCB power board is electrically connected to the heating plate and also electrically connected to the NTC thermistor 6. Specifically, by setting the NTC thermistor 6, the NTC thermistor 6 detects the temperature of the container 7 in real time and sends a temperature signal to the PCB power board. If the container 7 is empty or the liquid has boiled away but the heating plate continues to heat, the temperature at the bottom of the container 7 will rise rapidly. When the PCB power board determines that the temperature at the bottom of the container has risen beyond a preset range, it will cut off the heating of the heating plate, thus preventing dry burning.

[0038] Specifically, the heating plate assembly 2 is electrically connected to the control panel, and the NTC thermistor 6 is electrically connected to the control panel. When the NTC thermistor 6 senses that the temperature at the bottom of the container 7 has not reached the set temperature, it sends a signal to the control panel. The control panel then controls the heating plate assembly 2 to heat the liquid in the container 7 with high power. After the temperature at the bottom of the container 7 is detected to have reached the predetermined temperature, the NTC thermistor 6 sends a signal to the control panel, which then controls the heating plate assembly 2 to heat the liquid in the container 7 with low power to keep it warm.

[0039] Preferably, the sealing sleeve 3 of this application has an upward protrusion on one side of the bottom surface of the heating plate assembly 2 to form a waterproof rib 301. The waterproof rib 301 abuts and presses against the bottom surface of the heating plate assembly 2, which can prevent water from entering the device through the through hole 201.

[0040] Preferably, the touch bracket 4 extends radially outward to form a locking part 401, and the fitting part 302 of the sealing sleeve 3 has a slot 3021 corresponding to the position of the locking part 401, so that the locking part 401 can be inserted and fixed to ensure the stability of the assembly of the touch bracket 4 and the sealing sleeve 3.

[0041] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A waterproof automatic heating and heat preservation device, characterized in that, include: A fixed base (1), a heating plate assembly (2) disposed on the upper surface of the fixed base (1), the heating plate assembly (2) having a through hole (201), a flexible sealing sleeve (3) covering the through hole (201), a touch bracket (4) passing through the sealing sleeve (3), the upper end of which protrudes from the through hole (201), and can move downward when the container (7) is placed on the upper surface of the fixed base (1) and a downward force is applied to it, thereby causing the sealing sleeve (3) to deform downward, or when the container (7) moves... When the sealing sleeve (3) returns to its original state after the movement, it is driven to move upward by the sealing sleeve (3). The control switch (5) set on the fixed base (1) and located below the touch bracket (4) is electrically connected to the heating plate assembly (2) and the external power supply. It can be abutted by the lower end of the downward-moving touch bracket (4) to connect the heating plate assembly (2) to heat or keep the container (7) warm, or it can be disengaged from the lower end of the upward-moving touch bracket (4) to control the heating plate assembly (2) to stop heating.

2. The waterproof automatic heating and heat preservation device according to claim 1, characterized in that, Also includes: An NTC thermistor (6) is disposed on the upper end of the touch bracket (4) and passes through the through hole (201) to contact the bottom of the container (7). The heating plate assembly (2) includes a heating plate and a PCB power board electrically connected to the heating plate. The PCB power board is also electrically connected to the NTC thermistor (6) for controlling the start and stop of the heating plate and adjusting the heating plate to heating mode or heat preservation mode according to the resistance value of the NTC thermistor (6).

3. The waterproof automatic heating and heat preservation device according to claim 2, characterized in that, The sealing sleeve (3) has a hollow, open-end portion (302) in the middle for the NTC thermistor (6) and the touch bracket (4) to pass through.

4. The waterproof automatic heating and heat preservation device according to claim 1, characterized in that, The sealing sleeve (3) protrudes upward on the edge of the bottom side of the heating plate assembly (2) to form a waterproof rib (301) that abuts against the bottom surface of the heating plate assembly (2).

5. The waterproof automatic heating and heat preservation device according to claim 1, characterized in that, The fixed base (1) extends vertically to form a sleeve (1011) corresponding to the position of the through hole (201), and the sealing sleeve (3) has an embedding groove (303) on one side of the sleeve (1011) that fits into the upper edge of the sleeve (1011).

6. The waterproof automatic heating and heat preservation device according to claim 3, characterized in that, The touch support (4) extends radially outward to form a locking part (401), and the fitting part (302) has a slot (3021) radially for the locking part (401) to be inserted.

Images