An electric heating base

Abstract

The utility model relates to an electric heating base. The shell is provided with an assembly cavity for embedding the embedded assembly, the embedded assembly is provided with a transverse partition plate, which is divided into a heat dissipation cavity and an air inlet cavity, the partition plate is provided with an assembly opening for assembling a fan, a plurality of fixed seats at the upper end of the embedded assembly and the heating assembly of the embedded radiator form a plurality of circumferentially distributed heat dissipation channels, and the bottom cover plate below the lower embedded part is provided with supporting legs, which abut against the gravity sensor under the action of gravity to realize the weighing function. The utility model embeds the upper embedded part and the lower embedded part, which can be disassembled up and down, in the shell, clamps and fixes the shell, separates the heat dissipation cavity and the air inlet cavity through the partition plate, sends the air in the air inlet cavity into the heat dissipation cavity through the fan to dissipate heat for the heating disc, avoids the influence of high temperature on the circuit board in the air inlet cavity, improves the service life of the electric heating base, and the supporting legs can play the weighing function.

Description

Technical Field

[0001] This utility model belongs to the field of installation and assembly technology of electric heating bases, and specifically relates to an electric heating base. Background Technology

[0002] Electric kettles have now entered thousands of households, and they come in various styles, including integrated and separate types. Integrated kettles are advantageous because they are highly integrated, portable, and plug-and-play. Separate kettles are advantageous because the kettle body and outer shell can be separated. When boiling water, the outer shell can be placed in a fixed position, while the kettle body can be easily removed without having to lift it along with the outer shell, reducing the weight each time. Compared to integrated kettles, they are more convenient to use, and the repair cost is lower if any part or component is damaged.

[0003] For safety and heat transfer considerations, a microcrystalline plate needs to be installed on the split-type shell. A heating plate is set at the bottom of the microcrystalline plate. The microcrystalline plate can support the kettle body and also play a role in heat transfer. However, due to the small space inside the shell, electronic components such as circuit boards are integrated inside the shell. The heating plate will generate a lot of heat during use. In addition to heat transfer, the excess heat is confined inside the shell, which will affect the lifespan of electronic components. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an electric heating base. By embedding detachable upper and lower inserts inside the outer shell, the outer shell is clamped and fixed. At the same time, a partition plate separates the heat dissipation cavity and the air intake cavity inside. The fan sends the air in the air intake cavity into the heat dissipation cavity to dissipate heat from the heating plate, while also preventing the high temperature from affecting the circuit board in the air intake cavity, thus improving the service life of the electric heating base.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An electric heating base includes a shell, a heating component, a fitting component, a fan, a circuit board, and a bottom cover. The shell is an annular structure with a through-hole assembly cavity. The fitting component is fitted into the assembly cavity. A horizontally placed partition plate is provided inside the fitting component. The upper end of the partition plate forms an upward-opening heat dissipation cavity, and the lower end of the partition plate forms a downward-opening air intake cavity. The partition plate has an assembly port for assembling the fan. The upper end of the fitting component has several fixed seats arranged in an array. The heating component is embedded in the heat dissipation cavity and detachably connected to the fixed seats. The gap between the heating component and the fixed seats forms several circumferentially distributed heat dissipation channels. The circuit board is disposed in the air intake cavity. Both the heating component and the fan are electrically connected to the circuit board.

[0007] The fitting assembly includes an upper insert and a lower insert. The lower end face of the upper insert abuts against the upper opening of the assembly cavity, and the lower end face of the upper insert has an upper insert portion extending downward into the assembly cavity. The upper end face of the lower insert abuts against the lower opening of the assembly cavity, and the upper end face of the lower insert has a lower insert portion extending upward into the assembly cavity. The lower insert portion and the upper insert portion are detachably connected by a stud and a screw hole. A partition plate is disposed on the lower insert portion. Several fixing seats are disposed on the upper end face of the upper insert. A bottom cover plate is detachably connected to the lower end face of the lower insert, and the bottom cover plate has an air inlet facing the fan.

[0008] The heating assembly includes a microcrystalline plate and a heating plate. The heating plate is detachably connected to a partition plate via a connecting post. The edge of the microcrystalline plate is detachably connected to a fixing base. The middle of the lower end face of the microcrystalline plate abuts against the heating plate. The heating plate is electrically connected to a circuit board. The fixing base has a fixing groove filled with adhesive that abuts against the microcrystalline plate. The upper end face edge of the upper insert has an upwardly extending shielding portion. The connection between the shielding portion and several fixing bases has a protruding post. The edge of the microcrystalline plate abuts against the protruding post and maintains a gap with the shielding portion.

[0009] The upper surface of the partition plate is provided with an upwardly extending water baffle plate, which divides the upper surface of the partition plate into an outer water storage cavity and an inner isolation cavity. The gap between the edge of the heating plate and the inner sidewall of the upper insert falls into the water storage cavity on the projection surface of the partition plate. The assembly port is located in the isolation cavity. The lower surface of the partition plate is provided with a water guide column communicating with the water storage cavity. The bottom cover plate is provided with a water outlet facing the water guide column.

[0010] The heating base with this structure has a hollow interior forming an assembly cavity. Its own weight acts as a counterweight and supports the interlocking components. The outer shell can be made of crystal for a transparent and aesthetically pleasing appearance, or it can be made of wood, ceramic, or other materials. To stabilize the heating assembly consisting of the microcrystalline plate and heating plate, and to better insulate the heat, the interlocking components are divided into an upper insert and a lower insert. The upper insert is inserted into the assembly cavity from top to bottom, and the lower insert is inserted into the assembly cavity from bottom to top. The upper insert has a sloping surface at its end that matches the lower insert. As they move towards each other, they nest together with a certain gap, ensuring proper alignment. The bottom of the upper insert has a stud, and the upper surface of the lower insert has a screw hole that mates with the stud. A screw is inserted from bottom to top into the screw hole and tightened into the stud. As the screw is tightened, the upper and lower inserts come closer together and clamp the outer shell.

[0011] A horizontally placed partition plate is provided on the lower insert, dividing the cavity enclosed between the upper and lower inserts into a heat dissipation cavity and an air intake cavity. The heat dissipation cavity and the air intake cavity are connected to each other through an assembly port, on which a fan is mounted. The fan blows air from the air intake cavity into the heat dissipation cavity to cool the heating component that is fitted inside. The heating component consists of two parts: one part fits onto the upper end face of the upper insert, and the heating plate is fixed on the partition plate by a connecting post. The heating plate points upward and abuts against the lower end face of the microcrystalline plate. To form a heat dissipation channel, several circularly arrayed heat dissipation channels are provided on the upper end face of the upper insert. The mounting base is filled with adhesive, which secures the microcrystalline board around its perimeter. The gaps between the mounting bases form a heat dissipation channel. Air drawn into the heat dissipation cavity by the fan rises through the circumferentially distributed heat dissipation channel after passing over the heating plate, and finally dissipates from the gap between the microcrystalline board and the upper insert, thus cooling the heating plate. Since the circuit board is located inside the heat dissipation cavity, the upward airflow effectively prevents the heat generated at the heating plate from being transferred downwards into the air intake cavity, thereby ensuring that the temperature at the location of the circuit board remains suitable and extending the service life of the circuit board.

[0012] If the air outlet of the heat dissipation channel is oriented in a parallel outward direction, since electric kettles are generally placed within easy reach and close to the human body, the parallel outward diffusion of hot air can cause discomfort, making it impossible to sit next to the heating base for a long time. Therefore, an upward-extending shield is provided on the upper edge of the upper insert, so that the heat dissipation channel can be blocked by the shield after moving horizontally and diffuse upward. To prevent the installation of the microcrystalline plate from blocking the upward heat dissipation of the heat dissipation channel, a protrusion is provided between the shield and the fixing base. The protrusion can be a chamfered structure. When the microcrystalline plate is assembled from top to bottom, it will be limited by the protrusion, so that the edge of the microcrystalline plate always maintains a gap with the shield, ensuring that air can escape from the gap between the shield and the microcrystalline plate, forming a vertical upward heat dissipation airflow, and preventing hot air from blowing straight around the heating base.

[0013] When the electric heating base heats an electric kettle, it's inevitable that too much water will boil over and overflow, directly splashing onto the heating base. While typical heating bases prevent water ingress by adding waterproofing or sealing rings, this structure allows overflowing water to enter the heat dissipation cavity through the gap between the pre-formed shield and the microcrystalline plate. To prevent water from entering the fan through the partition plate, which would affect the fan circuitry and further wet the circuit board, a water-resistant plate is installed on the upper surface of the partition plate. This water-resistant plate protects the upper part of the partition plate from water. The device is divided into an outer water storage chamber and an inner isolation chamber. The area above the water storage chamber completely covers the gap between the heating plate and the upper insert. Therefore, when water enters from the heat dissipation channel, it will enter the gap between the heating plate and the upper insert and drip down. Thus, the water storage chamber can effectively catch the dripping water and prevent it from entering the isolation chamber where the fan is located. This prevents the dripping water from affecting the normal operation of the fan and the circuit board. A water guide column connected to the water storage chamber is set on the partition plate to guide the water accumulated in the water storage chamber out of the heating base and prevent too much water from accumulating and overflowing into the isolation chamber.

[0014] Even better, a bottom cover plate is detachably connected to the lower end face of the lower insert. The bottom cover plate can serve as a support and can also cover the air intake cavity and block the circuit board. An air inlet facing the fan is provided on the bottom cover plate so that the fan can draw air from outside the bottom cover plate into the heat dissipation cavity to dissipate heat from the heating plate. At the same time, a water outlet facing the water guide column is provided to prevent water from flowing out of the water guide column from accumulating in the bottom cover plate, thus playing a role in drainage.

[0015] Furthermore, it also includes a weighing component, which includes a support foot and a gravity sensor. The bottom cover plate has a support hole and a mounting groove communicating with the support hole. The support foot fits into the support hole and extends downward from the bottom cover plate. The gravity sensor fits into the mounting groove and abuts against the upper end face of the support foot. The gravity sensor is electrically connected to the circuit board. The weighing component also includes a fixing cover, which is detachably connected to the mounting groove and abuts against the gravity sensor. The weighing component and the support hole include several groups, and the several support holes are arranged in an array on the bottom cover plate, each of which is equipped with a weighing component.

[0016] Compared with the prior art, the advantages of this utility model are as follows: the upper and lower inserts are embedded into the outer shell, providing installation positions for the heating component, fan, circuit board and bottom cover. At the same time, a partition plate is set to separate them vertically, so that air can be sent from bottom to top into the heat dissipation cavity to dissipate heat from the heating plate. Hot air enters the heat dissipation channel formed between the fixed bases, and under the obstruction of the shielding part, it dissipates upward along the edge of the microcrystalline plate, avoiding parallel heat dissipation and affecting people around the electric heating base. At the same time, the heat dissipation channel can guide the water overflowing on the microcrystalline plate into the water storage cavity below it, and the water guide column will discharge the excess water from the outlet, preventing the water continuing in the electric heating base from affecting the normal operation of the fan and circuit board. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a top-view explosion diagram of the present invention;

[0020] Figure 3 For the present utility model Figure 2 Enlarged view of a portion at point A;

[0021] Figure 4 For the present utility model Figure 2 A magnified view of section B;

[0022] Figure 5 For the present utility model Figure 2 A magnified view of a portion at point C;

[0023] Figure 6 This is a bottom-view explosion diagram of the present invention;

[0024] Figure 7 For the present utility model Figure 6 A magnified view of a portion at point D;

[0025] Figure 8 For the present utility model Figure 6 A magnified view of a portion at point E;

[0026] Figure 9 This is a top view of the present invention;

[0027] Figure 10 For the present utility model Figure 9 FF cross-sectional view and heat dissipation flow diagram;

[0028] Figure 11 For the present utility model Figure 9 The cross-sectional view of GG and the schematic diagram of the force under weight measurement.

[0029] The components are as follows: 1. Outer shell; 11. Assembly cavity; 2. Heating component; 21. Microcrystalline plate; 22. Heating plate; 23. Connecting post; 3. Fitting component; 31. Partition plate; 311. Heat dissipation cavity; 312. Air inlet cavity; 313. Assembly port; 314. Water baffle plate; 315. Water storage cavity; 316. Isolation cavity; 317. Water guide column; 32. Fixing base; 321. Heat dissipation channel; 322. Fixing groove; 33. Upper insert; 331. Upper insert part; 332. Stud; 333. Shielding part; 334. Protruding post; 34. Lower insert; 341. Lower insert part; 342. Screw hole; 4. Fan; 5. Circuit board; 6. Bottom cover plate; 61. Air inlet; 62. Water outlet; 63. Support hole; 64. Mounting groove; 7. Weighing component; 71. Support foot; 72. Gravity sensor; 73. Fixing cover. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] The specific embodiments of this utility model will now be described with reference to the accompanying drawings:

[0032] like Figure 1-11As shown, an electric heating base includes a shell 1, a heating component 2, a fitting component 3, a fan 4, a circuit board 5, and a bottom cover 6. The shell 1 is an annular structure with an internally extending assembly cavity 11. The fitting component 3 is fitted into the assembly cavity 11. The fitting component 3 has a horizontally placed partition plate 31. The upper end of the partition plate 31 forms an upward-opening heat dissipation cavity 311, and the lower end of the partition plate 31 forms a downward-opening air intake cavity 312. The partition plate 31 has an assembly port 313 for mounting the fan 4. The upper end of the fitting component 3 has several arrayed fixing seats 32. The heating component 2 is embedded in the heat dissipation cavity 311 and detachably connected to the fixing seats 32. The gap between the heating component 2 and the fixing seats 32 forms several circumferentially distributed heat dissipation channels 321. The circuit board 5 is disposed in the air intake cavity 312. Both the heating component 2 and the fan 4 are electrically connected to the circuit board 5.

[0033] The fitting assembly 3 includes an upper insert 33 and a lower insert 34. The lower end face of the upper insert 33 abuts against the upper opening of the assembly cavity 11. The lower end face of the upper insert 33 is provided with an upper insert portion 331 extending downward into the assembly cavity 11. The upper end face of the lower insert 34 abuts against the lower opening of the assembly cavity 11. The upper end face of the lower insert 34 is provided with a lower insert portion 341 extending upward into the assembly cavity 11. The lower insert portion 341 and the upper insert portion 331 are detachably connected by a stud 332 and a screw hole 342. The partition plate 31 is disposed on the lower insert portion 341. Several fixing seats 32 are disposed on the upper end face of the upper insert 33. The bottom cover plate 6 is detachably connected to the lower end face of the lower insert 34. The bottom cover plate 6 is provided with an air inlet 61 facing the fan 4.

[0034] The heating assembly 2 includes a microcrystalline plate 21 and a heating plate 22. The heating plate 22 is detachably connected to the partition plate 31 via a connecting post 23. The edge of the microcrystalline plate 21 is detachably connected to the fixing seat 32. The middle of the lower end face of the microcrystalline plate 21 abuts against the heating plate 22. The heating plate 22 is electrically connected to the circuit board 5. The fixing seat 32 is provided with a fixing groove 322, which is filled with adhesive that abuts against the microcrystalline plate 21. The upper end face edge of the upper insert 33 is provided with an upwardly extending shielding part 333. The connection between the shielding part 333 and several fixing seats 32 is provided with a protrusion 334. The edge of the microcrystalline plate 21 abuts against the protrusion 334 and maintains a gap with the shielding part 333.

[0035] The upper surface of the partition plate 31 is provided with an upwardly extending water-blocking plate 314. The water-blocking plate 314 divides the upper surface of the partition plate 31 into an outer ring water storage cavity 315 and an inner ring isolation cavity 316. The projection surface of the gap between the edge of the heating plate 22 and the inner side wall of the upper insert 33 on the partition plate 31 falls into the water storage cavity 315. The assembly port 313 is located in the isolation cavity 316. The lower surface of the partition plate 31 is provided with a water guide column 317 communicating with the water storage cavity 315. The bottom cover plate 6 is provided with a water outlet 62 facing the water guide column 317.

[0036] Furthermore, it also includes a weighing component 7, which includes a support foot 71 and a gravity sensor 72. The bottom cover plate 6 has a support hole 63 and a mounting groove 64 communicating with the support hole 63. The support foot 71 fits into the support hole 63 and extends downward from the bottom cover plate 6. The gravity sensor 72 fits into the mounting groove 64 and abuts against the upper end face of the support foot 71. The gravity sensor 72 is electrically connected to the circuit board 5. The weighing component 7 also includes a fixing cover 73, which is detachably connected to the mounting groove 64 and abuts against the gravity sensor 72. The weighing component 7 and the support hole 63 include several groups, and the several support holes 63 are arranged in an array on the bottom cover plate 6, each of which is equipped with a weighing component 7.

[0037] Description of the working principle of this utility model:

[0038] The heating base with this structure has a hollow interior forming an assembly cavity 11. This cavity serves as a counterweight and supports the fitting assembly 3. The outer shell 1 can be made of crystal for a transparent and aesthetically pleasing appearance, or it can be made of wood, ceramic, or other materials. To stabilize the heating assembly 2 composed of the microcrystalline plate 21 and the heating plate 22, and to improve heat insulation, the fitting assembly 3 is divided into an upper insert 33 and a lower insert 34. The upper insert 33 inserts its lower upper portion 331 into the assembly cavity 11 from top to bottom, and the lower insert 34 inserts its upper lower portion 341 into the assembly cavity 11 simultaneously from bottom to top. The upper portion 331 has a ramp surface at its end that matches the lower portion 341. During this relative process, they are nested together and a certain gap is maintained, which plays a role in matching and aligning. A better sealing effect can be achieved by embedding a silicone ring between them. The bottom of the upper insert 33 is provided with a stud 332, and the upper end face of the lower insert 34 is provided with a screw hole 342 that matches the stud 332. The screw is inserted into the screw hole 342 from bottom to top and screwed into the stud 332. During the gradual tightening process, the upper insert 331 and the lower insert 341 move closer to each other and clamp the outer shell 1.

[0039] A horizontally placed partition plate 31 is provided on the lower insert 341, dividing the cavity enclosed between the upper insert 33 and the lower insert 34 into a heat dissipation cavity 311 and an air intake cavity 312. The heat dissipation cavity 311 and the air intake cavity 312 are connected to each other through an assembly port 313, and a fan 4 is mounted on the assembly port 313. The fan 4 blows the air in the air intake cavity 312 into the heat dissipation cavity 311 to dissipate heat for the heating component 2 that is fitted in the heat dissipation cavity 311. The heating component 2 consists of two parts: one part fits on the upper end face of the upper insert 33, and the heating plate 22 is fixed on the partition plate 31 by a connecting post 23. The heating plate 22 points upward and abuts against the lower end face of the microcrystalline plate 21. In order to form a heat dissipation channel, several... The mounting bases 32 are arranged in a circular array. The mounting grooves 322 on the mounting bases 32 are filled with adhesive to fix the microcrystalline plate 21 around its perimeter. The gaps between the mounting bases 32 are recessed to form a heat dissipation channel 321. The air drawn into the heat dissipation cavity 311 from the air intake cavity 312 by the fan 4 continues to rise into the circumferentially distributed heat dissipation channel 321 after blowing over the heating plate 22. Finally, it dissipates from the gap between the microcrystalline plate 21 and the upper insert 33, thereby cooling the heating plate 22. Since the circuit board 5 is set in the heat dissipation cavity 311, the air drawn from bottom to top can effectively prevent the temperature generated at the heating plate 22 from being transferred downward to the air intake cavity 312, thereby ensuring that the temperature at the location of the circuit board 5 remains suitable and extending the service life of the circuit board 5.

[0040] If the air outlet of the heat dissipation channel 321 is oriented in a parallel outward direction, since electric kettles are generally placed within easy reach and close to the human body, the parallel outward diffusion of hot air can cause discomfort, making it impossible to sit next to the electric kettle base for a long time. Therefore, an upward-extending shielding part 333 is provided on the upper edge of the upper insert 33, so that the heat dissipation channel 321 can be blocked by the shielding part 333 after moving horizontally and diffuse upward. To avoid the microcrystalline plate 21's installation... The upward heat dissipation of the heat dissipation channel 321 is blocked. Therefore, a protruding post 334 is provided between the shielding part 333 and the fixing base 32. The protruding post 334 can be a chamfered structure. When the microcrystalline plate 21 is assembled from top to bottom, it will be limited by the protruding post 334, so that the edge of the microcrystalline plate 21 always maintains a gap with the shielding part 333, ensuring that air can escape from the gap between the shielding part 333 and the microcrystalline plate 21, forming a vertical upward heat dissipation wind, and preventing hot air from blowing straight around the electric heating base.

[0041] When the electric heating base heats an electric kettle, it's inevitable that too much water will boil over and overflow, directly splashing onto the heating base. While typical heating bases prevent water from entering by adding waterproofing or sealing rings, this structure allows the overflowing water to enter the heat dissipation cavity 311 through the gap between the pre-formed shield 333 and the microcrystalline plate 21. To prevent water from entering the fan 4 from the partition plate 31, which would affect the fan 4 circuitry and further wet the circuit board 5, a water-resistant plate 314 is provided on the upper surface of the partition plate 31. This water-resistant plate 314 divides the upper part of the partition plate 31 into an outer ring of water storage chambers. The area above the water storage chamber 315 and the inner ring isolation chamber 316 completely covers the gap between the heating plate 22 and the upper insert 33. Therefore, when water enters from the heat dissipation channel 321, it will enter the gap between the heating plate 22 and the upper insert 33 and drip down. Thus, the water storage chamber 315 can effectively catch the flowing water and prevent it from entering the isolation chamber 316 where the fan 4 is located, thereby preventing the dripping water from affecting the normal operation of the fan 4 and the circuit board 5. A water guide column 317 connected to the water storage chamber 315 is provided on the partition plate 31 to guide the water accumulated in the water storage chamber 315 out of the electric heating base from the water guide column 317, preventing too much water from accumulating and overflowing into the isolation chamber 316.

[0042] Even better, a bottom cover plate 6 is detachably connected to the lower end surface of the lower insert 34. The bottom cover plate 6 can serve as a support and can also cover the air intake cavity 312 to block the circuit board 5. An air inlet 61 facing the fan 4 is provided on the bottom cover plate 6 so that the fan 4 can draw air from outside the bottom cover plate 6 into the heat dissipation cavity 311 to dissipate heat from the heating plate 22. At the same time, a water outlet 62 facing the water guide column 317 is provided to prevent water from flowing out of the water guide column 317 from accumulating in the bottom cover plate 6, thus playing a role in drainage.

[0043] Because a kettle heated without water on an electric heating base can easily explode or even cause a short circuit and fire, this structure uses a weight-measuring method to determine if the kettle is low on water and cut off the power in time to avoid safety hazards. Current technology typically uses a weight plate on the microcrystalline plate 21 or heating plate 22 to cut off the power when the weight of the kettle on the microcrystalline plate 21 changes. However, because the sensor is sensitive to ambient temperature, the sensor on the microcrystalline plate 21 or heating plate 22 may malfunction under the high temperature of the heating plate 22, thus losing its weight-measuring function. Therefore, this structure combines a gravity sensor 72 with a support foot 71. A circular support hole 63 is provided on the bottom cover plate 6. The support foot 71 passes through the support hole 63 from top to bottom and extends out of the bottom cover plate 6. The upper end of the support foot 71 abuts against the gravity sensor 72. To prevent the upward force from damaging the gravity sensor 72... The function of the mounting slot 64 is to measure weight. A fixing cover 73 is installed on the mounting slot 64 to restrict the upward movement of the gravity sensor 72. Therefore, when the electric heating base is placed on a table or other flat surface, the weight of the electric heating base itself will be applied to the bottom support feet 71. After tareing the weight of the electric heating base and the kettle itself, the weight information detected by the gravity sensors 72 is the weight information of the water poured into the kettle. When the water in the kettle is insufficient due to pouring or boiling time, the circuit board 5 will cut off the power to the heating plate 22 in time to avoid dry burning. When the gravity sensor 72 detects a continuous increase in weight, it can be determined that the weight is increased due to water being poured into the kettle, so the heating plate 22 can be powered on to boil water. When the electric heating base is lifted off the table, the gravity sensor 72 will detect a sudden decrease in the detection value, so it can be determined that the electric heating base has been picked up, so the power to the heating plate 22 can be cut off.

[0044] In addition, the weighing component 7, which is located in the air intake chamber 312, can not only prevent the heat generated by the heating plate 22 from affecting the circuit board 5 during the start-up of the fan 4, but also prevent the heat from affecting the gravity sensor 72, thereby ensuring the normal operation of the gravity sensor 72.

[0045] The beneficial effects of this utility model are as follows: the upper insert 33 and the lower insert 34 are embedded into the outer shell 1, providing installation positions for the heating component 2, fan 4, circuit board 5 and bottom cover 6. At the same time, a partition plate 31 is provided to separate them vertically, so that air can be sent from bottom to top into the heat dissipation cavity 311 to dissipate heat from the heating plate 22. The hot air enters the heat dissipation channel 321 formed between the fixing bases 32, and under the obstruction of the shielding part 333, it dissipates upward along the edge of the microcrystalline plate 21, avoiding parallel heat dissipation and affecting the heat dissipation. The heat dissipation channel 321 formed around the electric heating base can guide the water overflowing from the microcrystalline plate 21 into the water storage chamber 315 below it. The water guide column 317 will drain the excess water from the outlet 62, preventing the water continuing to flow into the electric heating base from affecting the normal operation of the fan 4 and the circuit board 5. The support foot 71 on the bottom cover plate 6 can detect the state inside the kettle after tareing when it comes into contact with the gravity sensor 72, thereby realizing the operation of powering on or off the heating plate 22, ensuring safety during the water boiling process.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electric heating base, characterized in that: The device includes a housing, a heating component, a fitting component, a fan, and a circuit board. The housing is an annular structure with a through-hole assembly cavity. The fitting component is fitted into the assembly cavity and has a horizontally placed partition plate. The upper end of the partition plate forms an upward-opening heat dissipation cavity, and the lower end forms a downward-opening air intake cavity. The partition plate has an assembly port for fan assembly. The upper end of the fitting component has several arrayed mounting seats. The heating component is embedded in the heat dissipation cavity and detachably connected to the mounting seats. The gap between the heating component and the mounting seats forms several circumferentially distributed heat dissipation channels. The circuit board is located in the air intake cavity, and both the heating component and the fan are electrically connected to the circuit board.

2. The electric heating base according to claim 1, characterized in that: The fitting assembly includes an upper insert and a lower insert. The lower end face of the upper insert abuts against the upper opening of the assembly cavity, and the lower end face of the upper insert has an upper insert portion extending downward into the assembly cavity. The upper end face of the lower insert abuts against the lower opening of the assembly cavity, and the upper end face of the lower insert has a lower insert portion extending upward into the assembly cavity. The lower insert portion and the upper insert portion are detachably connected by the engagement of a stud and a screw hole. The partition plate is disposed on the lower insert portion, and several fixing seats are disposed on the upper end face of the upper insert.

3. The electric heating base according to claim 2, characterized in that: The heating assembly includes a microcrystalline plate and a heating plate. The heating plate is detachably connected to the partition plate via a connecting post. The edge of the microcrystalline plate is detachably connected to the fixing base. The middle of the lower end face of the microcrystalline plate abuts against the heating plate. The heating plate is electrically connected to the circuit board.

4. The electric heating base according to claim 3, characterized in that: The mounting base is provided with a mounting groove, which is filled with adhesive that abuts against the microcrystalline plate.

5. The electric heating base according to claim 4, characterized in that: The upper end face edge of the upper insert is provided with an upwardly extending shielding part, and the connection between the shielding part and several fixing seats is provided with a protruding post. The edge of the microcrystalline plate abuts against the protruding post and maintains a gap with the shielding part.

6. The electric heating base according to claim 5, characterized in that: The upper surface of the partition plate is provided with an upwardly extending water baffle plate, which divides the upper surface of the partition plate into an outer water storage cavity and an inner isolation cavity. The gap between the edge of the heating plate and the inner sidewall of the upper insert falls into the water storage cavity on the projection surface of the partition plate. The assembly port is located in the isolation cavity. The lower surface of the partition plate is provided with a water guide column that communicates with the water storage cavity.

7. The electric heating base according to claim 6, characterized in that: It also includes a bottom cover plate, which is detachably connected to the lower end face of the lower insert. The bottom cover plate is provided with an air inlet facing the fan and a water outlet facing the water jet.

8. The electric heating base according to claim 7, characterized in that: It also includes a weighing component, which includes a support foot and a gravity sensor. The bottom cover plate has a support hole and a mounting groove communicating with the support hole. The support foot fits into the support hole and extends downward out of the bottom cover plate. The gravity sensor fits into the mounting groove and abuts against the upper end face of the support foot. The gravity sensor is electrically connected to the circuit board.

9. The electric heating base according to claim 8, characterized in that: The weighing assembly also includes a fixing cover, which is detachably connected to the mounting slot and abuts against the gravity sensor.

10. The electric heating base according to claim 9, characterized in that: The weighing components and support holes include several groups, and the support holes are arranged in an array on the bottom cover plate, each containing a weighing component.

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