Temperature controller for electromagnetic heating device

Abstract

The utility model relates to a temperature controller for an electromagnetic heating device, and the temperature controller comprises a main body assembly, the main body assembly comprises a supporting base, a mounting groove, a supporting ring, a first heating ring, a second heating ring and a third heating ring, the inner side of the supporting base is provided with the mounting groove, and the inner side of the mounting groove is provided with the supporting ring; a first heating ring, a second heating ring and a third heating ring are arranged on the inner circle of the supporting ring, and the circle center of the first heating ring, the circle center of the second heating ring and the circle center of the third heating ring coincide. The temperature sensing assembly sequentially penetrates through the first heating ring, the second heating ring and the third heating ring so that the temperature conditions of all the parts can be comprehensively detected.

Description

Technical Field

[0001] This invention belongs to the field of electromagnetic heating devices, specifically a temperature controller for electromagnetic heating devices. Background Technology

[0002] Electromagnetic heating, also known as electromagnetic induction heating, is a technology that works by generating an alternating magnetic field through electronic circuitry. When an iron-containing container is placed on top, the surface of the container cuts the alternating magnetic lines of force, generating an alternating current (eddy current) in the metal at the bottom of the container. This eddy current causes charge carriers at the bottom of the container to move at high speed and randomly, colliding and rubbing against atoms to generate heat. This heats the food. Because the iron container itself generates heat, the heat conversion rate is exceptionally high, reaching up to 95%, making it a direct heating method. Induction cookers, induction stoves, and electric rice cookers all utilize electromagnetic heating technology.

[0003] Existing patent CN202022827566.5, titled "Electromagnetic Heating Device," features a control prompt device that issues a working prompt message to alert the user to begin normal operation. However, when the detection component fails to detect changing parameters—for example, when the detection component separates from the magnetic container or is not in precise contact with it (in which case the placement of the magnetic container is off-center, and the detection component is not projected directly below the bottom wall of the container, the controller can issue a warning message to remind the user to correctly place the magnetic container; this indicates an abnormal working state). However, it has some shortcomings. For instance, it uses a detection component to control the detection and temperature threshold, but the temperature threshold is fixed and cannot be adjusted. Therefore, a temperature controller for an electromagnetic heating device is proposed. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] Given the following technical problems in the existing technology: the detection component controls the detection and temperature threshold, but the temperature threshold is fixed and cannot be adjusted.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a temperature controller for an electromagnetic heating device, comprising:

[0007] The main component includes a support base, a mounting groove, a support ring, a heating ring one, a heating ring two, and a heating ring three. The support base has a mounting groove on its inner side, and a support ring is provided on the inner side of the mounting groove. The heating ring one, heating ring two, and heating ring three are installed on the inner ring of the support ring, and the centers of the heating ring one, heating ring two, and heating ring three coincide.

[0008] A temperature sensing component is provided inside the mounting groove. The temperature sensing component includes a temperature sensing base, a heat-absorbing layer, a temperature sensing cavity, a sliding pipe, a pressing rod, a connecting rod, and a temperature control switch assembly. The temperature sensing base passes through a heating ring, a heating ring, and a heating ring. A temperature sensing cavity is formed inside the temperature sensing base. A heat-absorbing layer is provided on one side of the temperature sensing cavity. A sliding pipe is provided inside the temperature sensing cavity. A temperature-sensing liquid is placed inside the temperature sensing cavity. A movable plug assembly is slidably connected inside the sliding pipe. The movable plug assembly is connected to the temperature control switch assembly via the pressing rod.

[0009] As a preferred technical solution for a temperature controller for an electromagnetic heating device, the number of movable plug assemblies is three or more, and the movable plug assemblies are connected in series;

[0010] Improve fault tolerance by setting up multiple active plug components.

[0011] As a preferred technical solution for a temperature controller for an electromagnetic heating device, the movable plug assembly includes a movable plug seat, an expansion cavity, a rubber ring, a rubber bag, an abutment ring, and a bimetallic strip. The movable plug seat has an expansion cavity on its circumferential surface. A rubber ring is provided on the inner side of the expansion cavity. A rubber ring is provided on the outer circumference of the rubber bag. The abutment ring is accommodated on the inner side of the expansion cavity. The outer ring of the abutment ring abuts against the rubber bag. The rubber ring and the rubber bag form an air cavity. The abutment ring is connected to the expansion cavity through a bimetallic strip. The bimetallic strip is made of two metal materials with different coefficients of thermal expansion. The rubber ring is slidably connected to the inner wall of the sliding pipe.

[0012] As the temperature rises, the bimetallic strip bends inward toward the expansion cavity to resist the impact of the rubber ring, and most of the expansion volume of the rubber bag expands into the expansion cavity.

[0013] As a preferred technical solution for a temperature controller for an electromagnetic heating device, the movable plug assembly further includes anti-collision blocks, with an anti-collision block provided at each end of the movable plug seat;

[0014] The bumper blocks are made of elastic material to prevent violent collisions.

[0015] As a preferred technical solution for a temperature controller for an electromagnetic heating device, the temperature control switch assembly includes a temperature insulation ring, a second temperature sensing seat, a sliding groove, a movable seat, a control groove, an elastic contact plate, a reset spring, a reset ring, a sliding groove, a button, a locking plate, a recovery groove, and a contact plate. The first temperature sensing seat is connected to the second temperature sensing seat via the temperature insulation ring. The movable seat is slidably connected to the inner side of the second temperature sensing seat. A control groove is provided on one side of the movable seat. An elastic contact plate and a contact plate are provided on the inner side of the control groove. The elastic contact plate and the contact plate are movably connected. The second temperature sensing seat has a sliding groove. A recovery groove is provided on the movable seat. A locking plate is movably connected to the inner side of the recovery groove. The locking plate and the recovery groove are connected by a spring. The second temperature sensing seat has a sliding groove. A button is slidably connected to the sliding groove. The button is connected to the locking plate via a connecting rod. A pressing rod is movably connected to the elastic contact plate. The temperature sensing cavity contains a temperature-sensing liquid.

[0016] The rise in temperature can cause the temperature-sensitive liquid to expand. The expanded temperature-sensitive liquid can squeeze the movable plug assembly, which moves the squeezing rod against the elastic force of the return spring ring. The squeezing rod can squeeze the elastic contact piece, causing the elastic contact piece and the contact piece to separate.

[0017] A reset spring and a reset ring are connected between the extrusion rod and the insulation ring, and the reset spring and reset ring are sleeved on the extrusion rod.

[0018] Press and hold the button to allow the locking plate to enter the recycling tank, separating the locking plate from the inner wall of the second temperature sensing seat. This allows the movable seat to move relative to the second temperature sensing seat, thereby changing the position of the elastic contact piece. This forces the extrusion rod to overcome greater resistance from the return spring ring in order to extrude the elastic contact piece. The second temperature sensing seat and the return spring ring are located within the thermal insulation material, and the extrusion rod is made of ceramic material with a thermal conductivity of less than 20-30 W / (m·K).

[0019] As a preferred technical solution for a temperature controller for an electromagnetic heating device, the temperature sensing component further includes a heat-conducting layer, which is disposed inside the heat-absorbing layer, and the wall surface of the heat-conducting layer on the side away from the heat-absorbing layer is wavy.

[0020] The wavy shape increases the contact area, thereby accelerating heat transfer.

[0021] As a preferred technical solution for a temperature controller for an electromagnetic heating device, the structures of heating ring one, heating ring two, and heating ring three are the same as those of the heating assembly. The heating assembly includes a heating ring seat, a tungsten wire ring, and a coil. A tungsten wire ring is provided on the inner side of the heating ring seat, and a coil is wound on the outer side of the tungsten wire ring.

[0022] The coil generates a changing magnetic field, which causes eddy currents to heat up inside the tungsten wire ring.

[0023] The beneficial effects of a temperature controller for an electromagnetic heating device according to the present invention are as follows: the temperature of each part can be comprehensively detected by passing the temperature sensing component sequentially through heating ring one, heating ring two, and heating ring three.

[0024] By controlling the position of the movable seat, the temperature threshold of the heat-generating structure can be directly adjusted, thereby controlling the final heating temperature and cutting off the circuit in time when the temperature of the heat-generating structure is too high, thus improving safety. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0026] Figure 1 It is a front structural schematic diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the heating component of the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the temperature sensing component of the present invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of the movable plug assembly of the present invention;

[0030] Figure 5 This is a schematic diagram of the internal structure of the movable seat of the present invention;

[0031] Figure 6 For the present invention Figure 3 A magnified schematic diagram of part A in the middle section;

[0032] Figure 7 This is a schematic diagram of the structure of the flexible contact piece, contact piece and coil of the present invention connected to the AC power supply line.

[0033] Reference numerals: 100, Main component; 101, Support base; 102, Mounting groove; 103, Support ring; 104, Support block; 105, Heating ring one; 106, Heating ring two; 107, Heating ring three; 108, Heat insulation cover; 200, Temperature sensing component; 201, Temperature sensing seat one; 202, Heat absorption layer; 203, Temperature sensing cavity; 204, Heat conducting layer; 205, Sliding pipe; 206, Extrusion rod; 207, Connecting rod; 208, Heat insulation ring; 209, Temperature sensing seat two; 215, Sliding groove; 211. Movable seat; 212. Control slot; 213. Flexible contact piece; 214. Reset spring ring; 215. Sliding slot; 216. Button; 217. Locking plate; 218. Recycling slot; 219. Contact piece; 300. Movable plug assembly; 301. Movable plug seat; 302. Expansion cavity; 303. Rubber ring; 304. Rubber bag; 305. Abutment ring; 306. Bimetallic strip; 307. Anti-collision block; 400. Heating element; 401. Heating ring seat; 402. Tungsten wire ring; 403. Coil. Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0038] like Figures 1-7 As shown, the present invention proposes a temperature controller for an electromagnetic heating device, comprising:

[0039] The main component 100 includes a support base 101, a mounting groove 102, a support ring 103, a first heating ring 105, a second heating ring 106, and a third heating ring 107. The support base 101 has a mounting groove 102 on its inner side, and a support ring 103 is provided on the inner side of the mounting groove 102. The first heating ring 105, the second heating ring 106, and the third heating ring 107 are installed on the inner ring of the support ring 103, and the centers of the first heating ring 105, the second heating ring 106, and the third heating ring 107 coincide.

[0040] A temperature sensing component 200 is provided inside the mounting groove 102. The temperature sensing component 200 includes a temperature sensing base 201, a heat-absorbing layer 202, a temperature sensing cavity 203, a sliding pipe 205, a pressing rod 206, a connecting rod 207, and a temperature control switch assembly. The temperature sensing base 201 passes through a heating ring 105, a heating ring 206, and a heating ring 307. A temperature sensing cavity 203 is formed inside the temperature sensing base 201. A heat-absorbing layer 202 is provided on one side of the temperature sensing cavity 203. A sliding pipe 205 is provided inside the temperature sensing cavity 203. A temperature-sensing liquid is contained in the temperature sensing cavity 203. A movable plug assembly 300 is slidably connected inside the sliding pipe 205. The movable plug assembly 300 is connected to the temperature control switch assembly via the pressing rod 206.

[0041] The number of movable plug assemblies 300 is three or more, and the movable plug assemblies 300 are connected in series;

[0042] By setting multiple active plug components 300, the fault tolerance is improved.

[0043] The movable plug assembly 300 includes a movable plug seat 301, an expansion cavity 302, a rubber ring 303, a rubber bag 304, an abutment ring 305, and a bimetallic strip 306. The movable plug seat 301 has an expansion cavity 302 on its circumference. A rubber ring 303 is provided on the inner side of the expansion cavity 302. A rubber ring 303 is provided on the outer circumference of the rubber bag 304. The abutment ring 305 is accommodated inside the expansion cavity 302. The outer ring of the abutment ring 305 abuts against the rubber bag 304. The rubber ring 303 and the rubber bag 304 form an air cavity. The abutment ring 305 is connected to the expansion cavity 302 at the gap by a bimetallic strip 306. The bimetallic strip 306 is made of two metal materials with different coefficients of thermal expansion. The rubber ring 303 is slidably connected to the inner wall of the sliding pipe 205.

[0044] When the temperature rises, the bimetallic strip 306 bends into the expansion cavity 302 to resist the impact of the rubber ring 303, and most of the expansion volume of the rubber bag 304 expands into the expansion cavity 302.

[0045] The movable plug assembly 300 also includes anti-collision blocks 307, and an anti-collision block 307 is respectively provided at both ends of the movable plug seat 301;

[0046] The 307 anti-collision block is made of elastic material to prevent violent collisions.

[0047] The temperature control switch assembly includes a temperature insulation ring 208, a second temperature sensing base 209, a sliding groove 215, a movable base 211, a control groove 212, a flexible contact piece 213, a reset spring ring 214, a sliding groove 215, a button 216, a locking plate 217, a recovery groove 218, and a contact piece 219. The first temperature sensing base 201 is connected to the second temperature sensing base 209 via the temperature insulation ring 208. The movable base 211 is slidably connected to the inner side of the second temperature sensing base 209. A control groove 212 is provided on one side of the movable base 211. A flexible contact piece 213 and a contact piece 219 are provided on the inner side of the control groove 212. The elastic contact piece 213 is movably connected to the contact piece 219. The second temperature sensing base 209 has a sliding groove 215. The movable base 211 has a recycling groove 218. A locking plate 217 is movably connected to the inside of the recycling groove 218. The locking plate 217 and the recycling groove 218 are connected by a spring. The second temperature sensing base 209 has a sliding groove 215. A button 216 is slidably connected to the sliding groove 215. The button 216 is connected to the locking plate 217 through a connecting rod. The squeezing rod 206 is movably connected to the elastic contact piece 213. The temperature sensing cavity 203 contains the temperature-sensing liquid.

[0048] The temperature rise can cause the temperature-sensitive liquid to expand. The expanded temperature-sensitive liquid can squeeze the movable plug assembly 300 and move the squeezing rod 206 against the elastic force of the reset spring ring 214. The squeezing rod 206 can squeeze the elastic contact piece 213 to separate the elastic contact piece 213 and the contact piece 219.

[0049] A reset spring ring 214 is connected between the extrusion rod 206 and the insulation ring 208, and the reset spring ring 214 is sleeved with the extrusion rod 206.

[0050] Pressing button 216 causes locking plate 217 to enter recycling tank 218, separating locking plate 217 from the inner wall of temperature sensing seat 209, allowing movable seat 211 to move relative to temperature sensing seat 209, thereby changing the position of elastic contact piece 213, so that pressing rod 206 needs to overcome greater resistance from return spring ring 214 to press elastic contact piece 213. Temperature sensing seat 209 and return spring ring 214 are located in thermal insulation material, and pressing rod 206 is made of ceramic material with thermal conductivity lower than 20-30 W / (m·K).

[0051] The temperature sensing component 200 further includes a heat-conducting layer 204, which is disposed inside the heat-absorbing layer 202, and the wall surface of the heat-conducting layer 204 away from the heat-absorbing layer 202 is configured as a wave shape.

[0052] The temperature sensing component 200 is inserted into the heat insulation cover 108, which is installed on the outside of the support base 101.

[0053] The wavy shape increases the contact area, thereby accelerating heat transfer.

[0054] The structures of heating ring 105, heating ring 2 106 and heating ring 3 107 are the same as those of heating assembly 400. Heating assembly 400 includes heating ring seat 401, tungsten wire ring 402 and coil 403. Tungsten wire ring 402 is provided on the inner side of heating ring seat 401, and coil 403 is wound on the outer side of tungsten wire ring 402.

[0055] The coil 403 generates a changing magnetic field, which causes eddy currents to heat up inside the tungsten wire ring 402.

[0056] The temperature-sensing liquid includes mercury, a permanent magnet is provided inside the locking plate 217, and a sheet metal is provided on the wall of the inner cavity of the temperature-sensing seat 209 near the sliding groove 215.

[0057] The locking plate 217 is attracted to the sheet metal to lock it in place.

[0058] Several support blocks 104 are evenly installed on the outer ring of the support block 104.

[0059] The specific implementation method is as follows: Pressing the locking plate 217 can separate the locking plate 217 from the inner wall of the temperature sensing seat 209, thereby controlling the movement of the button 216 and the movable seat 211. Pressing the button 216 causes the locking plate 217 to enter the recycling tank 218, separating the locking plate 217 from the inner wall of the temperature sensing seat 209, allowing the movable seat 211 to move relative to the temperature sensing seat 209, thereby changing the position of the elastic contact piece 213. This causes the squeezing rod 206 to need to overcome a greater resistance from the return spring ring 214 in order to squeeze the elastic contact piece 213, thereby controlling the maximum temperature value of the inner cavity of the mounting groove 102.

[0060] The rise in temperature can cause the temperature-sensitive liquid to expand. The expanded temperature-sensitive liquid can squeeze the movable plug assembly 300, which moves the squeezing rod 206 against the elastic force of the reset spring ring 214. The squeezing rod 206 can squeeze the elastic contact piece 213, causing the elastic contact piece 213 and the contact piece 219 to separate, thereby cutting off the circuit where the coil 403 is located.

[0061] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A temperature controller for an electromagnetic heating device, characterized in that: include: The main component (100) includes a support base (101), an installation groove (102) is provided on the inner side of the support base (101), a support ring (103) is provided on the inner side of the installation groove (102), and a heating ring one (105), a heating ring two (106) and a heating ring three (107) are installed on the inner ring of the support ring (103), with the centers of the heating ring one (105), the heating ring two (106) and the heating ring three (107) coinciding. A temperature sensing component (200) is provided inside the mounting groove (102). The temperature sensing component (200) includes a temperature sensing seat (201), which passes through a heating ring (105), a heating ring (106), and a heating ring (107). A temperature sensing cavity (203) is provided inside the temperature sensing seat (201). A heat-absorbing layer (202) is provided on one side of the temperature sensing cavity (203). A sliding pipe (205) is provided inside the temperature sensing cavity (203). A temperature-sensing liquid is placed inside the temperature sensing cavity (203). A movable plug assembly (300) is slidably connected inside the sliding pipe (205). The movable plug assembly (300) is connected to the temperature control switch assembly through a squeezing rod (206).

2. A temperature controller for an electromagnetic heating device according to claim 1, characterized in that: There are three or more movable plug assemblies (300), and the movable plug assemblies (300) are connected in series.

3. A temperature controller for an electromagnetic heating device according to claim 1, characterized in that: The movable plug assembly (300) includes a movable plug seat (301), an expansion cavity (302), a rubber ring (303), a rubber bag (304), an abutment ring (305), and a bimetallic strip (306). The movable plug seat (301) has an expansion cavity (302) on its circumferential surface. A rubber ring (303) is provided on the inner side of the expansion cavity (302). A rubber ring (303) is provided on the outer circumference of the rubber bag (304). The expansion cavity (302) contains... The side accommodates an abutment ring (305), the outer ring of which abuts against a rubber bag (304). The rubber ring (303) and the rubber bag (304) form an air cavity. The abutment ring (305) is connected to the expansion cavity (302) at the gap by a bimetallic strip (306). The bimetallic strip (306) is made of two metal materials with different coefficients of thermal expansion. The rubber ring (303) is slidably connected to the inner wall of the sliding pipe (205).

4. A temperature controller for an electromagnetic heating device according to claim 3, characterized in that: The movable plug assembly (300) also includes anti-collision blocks (307), and an anti-collision block (307) is provided at each end of the movable plug seat (301).

5. A temperature controller for an electromagnetic heating device according to claim 1, characterized in that: The temperature control switch assembly includes a heat insulation ring (208). The first temperature sensing seat (201) is connected to the second temperature sensing seat (209) through the heat insulation ring (208). A movable seat (211) is slidably connected to the inner side of the second temperature sensing seat (209). A control groove (212) is provided on one side of the movable seat (211). An elastic contact piece (213) and a contact piece (219) are provided on the inner side of the control groove (212). The elastic contact piece (213) and the contact piece (219) are movably connected. The second temperature sensing seat (209) has a sliding contact piece. The movable slot (215) has a recycling slot (218) on the movable seat (211). A locking plate (217) is movably connected to the inside of the recycling slot (218). The locking plate (217) and the recycling slot (218) are connected by a spring. The temperature sensing seat (209) has a sliding slot (215). A button (216) is slidably connected to the sliding slot (215). The button (216) is connected to the locking plate (217) through a connecting rod. The squeezing rod (206) is movably connected to the elastic contact piece (213).

6. A temperature controller for an electromagnetic heating device according to claim 5, characterized in that: The temperature sensing component (200) further includes a heat-conducting layer (204), which is disposed inside the heat-absorbing layer (202), and the wall surface of the heat-conducting layer (204) away from the heat-absorbing layer (202) is configured as wavy.

7. A temperature controller for an electromagnetic heating device according to claim 1, characterized in that: The structures of heating ring one (105), heating ring two (106) and heating ring three (107) are the same as those of heating assembly (400). Heating assembly (400) includes heating ring seat (401), tungsten wire ring (402) and coil (403). The inner side of heating ring seat (401) is provided with tungsten wire ring (402), and the outer side of tungsten wire ring (402) is wound with coil (403).

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