Electromagnetic oven
By installing the temperature measuring component on the heat insulation board and above the electromagnetic coil in the induction cooker, the temperature measuring probe is prevented from interfering with the coil winding, thereby improving the heating efficiency and uniformity of the induction cooker, solving the heating problem caused by the coil avoidance area, and ensuring temperature measurement accuracy and safety.
Patent Information
- Application Number
- CN202422113825.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-08-29
AI Technical Summary
In existing induction cookers, the installation position of the temperature measuring component interferes with the winding of the electromagnetic induction coil, resulting in a coil avoidance area, which affects the heating efficiency and heating uniformity.
The temperature measuring probe of the temperature measuring component is installed on the insulation board and located above the electromagnetic wire reel. The electromagnetic wire reel is shielded by the insulation board to prevent the temperature measuring probe from interfering with the coil winding. The temperature measuring probe is against the back of the panel. Multiple temperature measuring components are distributed in a loop array, and the lead is designed to pass through a small diameter through hole. The insulation board is provided with ribs and heat dissipation holes to ensure uniform coil winding and heating.
It improves the heating efficiency and uniformity of the induction cooker, reduces the coil temperature, enhances the temperature measurement accuracy and installation reliability, complies with safety regulations, and avoids coil burnout and dry burning.
Smart Images

Figure CN223388619U_ABST
Abstract
Description
Technical field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to an induction cooker. [Background Technology]
[0002] Conventional induction cookers include a housing, an electromagnetic wire reel housed within the housing, and a temperature measurement assembly. The conventional electromagnetic wire reel includes a reel bracket and an electromagnetic induction coil wound around the reel bracket. During operation, the electromagnetic induction coil generates a magnetic field that creates eddy currents in the cookware, thereby heating the cookware. To secure the temperature measurement assembly, the conventional reel bracket has a mounting hole, into which the temperature measurement assembly is mounted. However, the presence of the temperature measurement assembly prevents the electromagnetic induction coil from being wound there, creating a coil clearance zone on the electromagnetic wire reel. This clearance zone significantly affects the distribution of the magnetic field generated by the coil, resulting in poor heating efficiency and uniformity. [Utility Model Content]
[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide an induction cooker. By changing the installation position of the temperature measuring component, interference with the winding of the electromagnetic induction coil can be avoided, so that the number of turns of the electromagnetic induction coil is increased and more uniform, thereby improving the heating efficiency and heating uniformity.
[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0005] An induction cooker includes a shell, an electromagnetic wire reel and a temperature measuring assembly arranged in the shell, the shell including a panel and a heat insulation board arranged above the electromagnetic wire reel, the heat insulation board is located between the panel and the electromagnetic wire reel and shields the electromagnetic wire reel, the temperature measuring assembly includes a temperature measuring probe and a lead, the temperature measuring probe is mounted on the heat insulation board and located above the electromagnetic wire reel, and the temperature measuring probe abuts against the back of the panel.
[0006] In the above-mentioned induction cooker, the heat insulation plate is provided with a sinking platform which is recessed toward the electromagnetic wire coil, and the temperature measuring probe is installed in the sinking platform.
[0007] In the above-mentioned induction cooker, a slot is provided on the side wall of the sink, and the temperature probe includes a temperature measuring bracket and a thermistor installed on the top of the temperature measuring bracket. The temperature measuring bracket has a rib inserted into the slot, and the thermistor is against the back of the panel.
[0008] In the above-mentioned induction cooker, one end of the lead is electrically connected to the temperature probe, and the other end is connected to the terminal. The heat insulation plate is provided with a first through hole located below the temperature probe and a second through hole located outside the temperature probe. The first through hole extends to the second through hole and is connected to the second through hole. The first through hole is for the lead to pass through, and the second through hole is for the terminal and the lead to pass through.
[0009] In the above induction cooker, the equivalent diameter of the second through hole is less than 12 mm.
[0010] In the above-mentioned induction cooker, a partition rib is protruded from the side of the heat insulation board facing the electromagnetic wire coil, and the partition rib separates the electromagnetic wire coil and the heat insulation board.
[0011] In the above-mentioned induction cooker, the partition ribs extend along the extending direction of the first through hole, and the partition ribs are located outside the first through hole and the second through hole.
[0012] In the above-mentioned induction cooker, the electromagnetic wire reel includes a wire reel bracket and an electromagnetic induction coil wound on the wire reel bracket. There is a gap between two adjacent turns of the electromagnetic induction coil. The wire reel bracket is provided with a through-hole corresponding to the gap, and the lead wire passes through the gap and the through-hole.
[0013] In the above-mentioned induction cooker, there are multiple temperature measuring components, and the multiple temperature measuring components are distributed in a circular array with the center of the electromagnetic wire disk as the center of the circle.
[0014] In the above-mentioned induction cooker, the heat insulation plate is provided with a plurality of heat dissipation holes.
[0015] Beneficial effects of the utility model:
[0016] 1. The shell of the present invention includes a panel and a heat insulation board arranged above the electromagnetic wire reel. The heat insulation board is located between the panel and the electromagnetic wire reel and blocks the electromagnetic wire reel. As a result, the heat insulation board can block the heat from the panel and the pot from being transferred to the electromagnetic wire reel, so as to avoid deformation of the wire reel bracket due to high temperature and burning of the electromagnetic induction coil due to excessive temperature. The temperature measuring component includes a temperature measuring probe and a lead. The temperature measuring probe is installed on the heat insulation board and located above the electromagnetic wire reel. Such a design can prevent the temperature measuring probe from interfering with the winding of the electromagnetic induction coil, and there is no need to set a coil avoidance zone, so that the number of turns of the electromagnetic induction coil is more and more uniform, thereby improving heating efficiency and heating uniformity. The temperature measuring probe is against the back of the panel, and can indirectly measure the temperature of the heated pot by measuring the temperature of the panel. The measurement accuracy is high, so as to realize the function of automatic control.
[0017] 2. The heat shield features a sunken platform recessed toward the electromagnetic coil, with the temperature probe installed within it. This design creates ample space between the bottom wall of the platform and the front panel to accommodate the temperature probe, eliminating the need to increase the gap between the front panel and the heat shield, thereby reducing the overall height of the unit. Furthermore, the combination of the sunken platform and the temperature probe improves installation reliability.
[0018] 3. The side wall of the sink is equipped with a slot. The temperature probe consists of a temperature bracket and a thermistor mounted on top of the bracket. The bracket has a rib that inserts into the slot, and the thermistor abuts against the back of the panel. This design allows the rib and slot to cooperate to vertically limit the temperature probe, preventing it from falling out of the sink, thereby further improving the installation reliability of the temperature probe and simplifying assembly.
[0019] 4. One end of the lead is electrically connected to the temperature probe, and the other end is connected to the terminal. The thermal insulation board is provided with a first through-hole located below the temperature probe and a second through-hole located outside the temperature probe. The first through-hole extends to and is connected to the second through-hole. The first through-hole is for the lead to pass through, and the second through-hole is for the terminal and the lead to pass through. This design allows the temperature probe to be installed on the side of the thermal insulation board facing the panel. During assembly, the terminal is first inserted through the second through-hole into the bottom of the thermal insulation board, and then the terminal is pulled toward the temperature probe. The lead will then enter the first through-hole and extend downward. There is no need to lay the lead along the upper surface of the thermal insulation board to the edge of the thermal insulation board and then introduce it under the thermal insulation board, thereby shortening the useful length of the lead. In addition, since the temperature probe does not block the second through-hole, air convection can occur at the second through-hole to reduce the temperature of the electromagnetic wire reel.
[0020] 5. The equivalent diameter of the second through hole is less than 12 mm. This design prevents the test finger from reaching into the second through hole and touching the electromagnetic induction coil on the electromagnetic wire reel, ensuring that the product meets safety regulations.
[0021] 6. A rib is protruding from the side of the heat shield facing the electromagnetic coil, separating the electromagnetic coil from the heat shield. This design allows for a certain distance between the electromagnetic coil and the heat shield, meeting the creepage distance requirements of the test indicator.
[0022] 7. The ribs extend along the direction of the first through hole and are located outside the first and second through holes. This design prevents the ribs from interfering with the lead wire's path when the temperature measurement assembly is assembled and the lead wire is pulled, allowing the lead wire to smoothly pass through the second through hole and into the first through hole.
[0023] 8. The electromagnetic wire reel includes a reel support and an electromagnetic induction coil mounted on the reel support. A gap exists between adjacent turns of the electromagnetic induction coil. The reel support has perforations corresponding to the gaps, and the lead wires pass through the gaps and perforations. This design prevents the lead wires from interfering with the winding of the electromagnetic induction coil, eliminating the need for a coil avoidance zone and allowing the electromagnetic induction coil to be wound in a full turn, thereby improving heating efficiency and uniformity.
[0024] 9. Multiple temperature measuring components are arranged in a circular array around the center of the electromagnetic coil. This design allows the temperature of multiple locations on the cookware to be monitored, effectively preventing dry cooking and preventing the panel and electromagnetic induction coil from overheating and burning out.
[0025] 10. The heat shield is equipped with multiple heat dissipation holes. This design can generate air convection to further reduce the temperature rise of the electromagnetic induction coil.
[0026] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.
Brief Description of the Drawings
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] Figure 1 This is a schematic diagram of the explosion of the induction cooker and the cookware in the first embodiment of the present utility model;
[0029] Figure 2 This is an exploded schematic diagram of the heat insulation board and the electromagnetic wire reel in Example 1 of the present utility model;
[0030] Figure 3 This is a top view of the induction cooker after placing the cookware in Example 1 of the present utility model;
[0031] Figure 4 This is a partial structural cross-sectional view of the induction cooker after placing the cookware in Example 1 of the present utility model;
[0032] Figure 5 for Figure 4 A partial enlarged schematic diagram of B in the middle;
[0033] Figure 6 This is a schematic diagram of the structure of the heat insulation board in the second embodiment of the present invention. Figure 1 ;
[0034] Figure 7 This is a schematic diagram of the structure of the heat insulation board in the second embodiment of the present invention. Figure 2 ;
[0035] Figure 8 This is a schematic diagram of the partial structure of the induction cooker in the second embodiment of the present utility model.
[0036] Reference numerals:
[0037] 100. Shell; 101. Bottom cover; 102. Upper cover; 110. Panel; 120. Heat shield; 121. Sink; 1210. Slot; 122. First through hole; 123. Second through hole; 124. Partition rib; 125. Heat dissipation hole; 130. Support ring; 200. Electromagnetic wire reel; 210. Wire reel bracket; 220. Electromagnetic induction coil; 230. Gap; 300. Temperature measuring component; 310. Temperature measuring probe; 311. Temperature measuring bracket; 3110. Raised rib; 312. Thermistor; 320. Lead wire; 330. Terminal block; 400. Cookware; 500. Main control board. [Specific implementation method]
[0038] The utility model provides an induction cooker, comprising a shell, an electromagnetic wire reel and a temperature measuring component arranged in the shell, the shell comprising a panel and a heat insulation board arranged above the electromagnetic wire reel, the heat insulation board being located between the panel and the electromagnetic wire reel and shielding the electromagnetic wire reel, the temperature measuring component comprising a temperature measuring probe and a lead, the temperature measuring probe being mounted on the heat insulation board and located above the electromagnetic wire reel, the temperature measuring probe being against the back of the panel.
[0039] The shell of the present invention includes a panel and a heat insulation board arranged above the electromagnetic wire reel. The heat insulation board is located between the panel and the electromagnetic wire reel and blocks the electromagnetic wire reel. As a result, the heat from the panel and the pot can be blocked from being transferred to the electromagnetic wire reel through the heat insulation board, so as to avoid high-temperature deformation of the wire reel bracket and burning of the electromagnetic induction coil due to excessive temperature. The temperature measuring component includes a temperature measuring probe and a lead. The temperature measuring probe is installed on the heat insulation board and located above the electromagnetic wire reel. Such a design can prevent the temperature measuring probe from interfering with the winding of the electromagnetic induction coil, and there is no need to set a coil avoidance area, so that the number of turns of the electromagnetic induction coil is more and more uniform, so as to improve the heating efficiency and heating uniformity. The temperature measuring probe is offset from the back of the panel, and can indirectly measure the temperature of the heated pot by measuring the temperature of the panel. The measurement accuracy is high, so as to realize the function of automatic control.
[0040] The technical solutions of the embodiments of the present invention are explained and illustrated below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without making creative work all fall within the scope of protection of the present invention. In addition, it should be understood that the following words indicating orientation or positional relationship such as "up", "down", "left", "right", "longitudinal", "lateral", "inside", "outside", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0041] Example 1
[0042] like Figures 1 to 5 As shown, the induction cooker in this embodiment includes a shell 100, an electromagnetic wire reel 200 and a temperature measuring component 300 arranged in the shell 100, the electromagnetic wire reel 200 includes a wire reel bracket 210 and a multi-turn electromagnetic induction coil 220 wound on the wire reel bracket 210, the shell 100 includes a panel 110 and a heat insulation board 120 arranged above the electromagnetic wire reel 200, the heat insulation board 120 can be a temperature-resistant plastic, a mica board or a rock wool board, etc., the heat insulation board 120 is located between the panel 110 and the electromagnetic wire reel 200 and blocks the electromagnetic wire reel 200, thereby preventing the heat of the panel 110 and the pot 400 from being transferred to the electromagnetic wire reel 200 through the heat insulation board 120, so as to avoid high-temperature deformation of the wire reel bracket 210 and the electromagnetic induction coil 220. 20 The temperature is too high and it burns out. The temperature measuring component 300 includes a temperature measuring probe 310 and a lead 320. One end of the lead 320 is electrically connected to the temperature measuring probe 310. The temperature measuring probe 310 is installed on the heat insulation board 120 and is located above the electromagnetic wire reel 200. Such a design can avoid the temperature measuring probe 310 from interfering with the winding of the electromagnetic induction coil 220, and there is no need to set a coil avoidance area, so that the number of turns of the electromagnetic induction coil 220 is more and more uniform, thereby improving the heating efficiency and heating uniformity; finally, the temperature measuring probe 310 in this embodiment is against the back of the panel 110. Such a design can indirectly measure the temperature of the heated pot 400 by measuring the temperature of the panel 110, with high measurement accuracy, so as to realize the automatic control function.
[0043] Specifically, the housing 100 in this embodiment further includes a bottom cover 101 and an upper cover 102, wherein the bottom wall of the bottom cover 101 is provided with a screw column extending upward, the wire drum bracket 210 includes a concave disk rack and a mounting ring arranged around the edge of the disk rack, the electromagnetic induction coil 220 is wound on the upper surface or the lower surface of the wire drum bracket 210, preferably the electromagnetic induction coil 220 is wound on the upper surface of the wire drum bracket 210, the edge of the heat insulation board 120 is supported on the top surface of the mounting ring, the mounting ring is supported on the screw column, the screw passes through the heat insulation board 120 and the mounting ring and The screw column is locked and fixed to fix the electromagnetic wire reel 200 and the thermal insulation board 120, and the panel 110 is a concave panel, and the upper cover 102 is an annular frame arranged around the thermal insulation board 120. The upper cover 102 has a through hole corresponding to the electromagnetic wire reel 200. The upper cover 102 is screwed to the bottom cover 101. The panel 110 is installed on the upper cover 102 and covers the through hole and the thermal insulation board 120. A support ring 130 is provided on the top of the upper cover 102, and the support ring 130 wraps the edge of the panel 110 to prevent the edge of the panel 110 from cutting the user.
[0044] In this embodiment, a portion of the heat insulation board 120 is recessed toward the electromagnetic wire reel 200 to form a sink 121. The temperature measuring probe 310 includes a temperature measuring bracket 311 and a thermistor 312 installed on the top of the temperature measuring bracket 311. The bottom of the temperature measuring bracket 311 is located in the sink 121 and is interference fit with the sink 121 to achieve the installation of the temperature measuring probe 310 in the sink 121, while the top of the thermistor 312 is against the back of the panel 110. Such a design allows a larger space between the bottom wall of the sink 121 and the panel 110 to accommodate the temperature measuring probe 310, without increasing the overall distance between the panel 110 and the heat insulation board 120, thereby reducing the height of the entire machine; in addition, the combination of the sink 121 and the temperature measuring probe 310 can also improve the installation reliability of the temperature measuring probe 310.
[0045] Due to the problem of magnetic field distribution, the highest temperature point at the bottom of the pot 400 is often 60mm to 80mm away from the center of the pot (related to the size of the electromagnetic wire reel 200, etc.), so the sinks 121 in this embodiment are also distributed at 60mm to 80mm away from the center of the electromagnetic wire reel 200. Preferably, there are multiple sinks 121, and the multiple sinks 121 are distributed in a circular array with the center of the electromagnetic wire reel 200 as the center of the circle. The corresponding number of temperature measuring components 300 is multiple, and the multiple temperature measuring components 300 are distributed in a circular array with the center of the electromagnetic wire reel 200 as the center of the circle. With such a design, the temperature of multiple positions of the pot 400 can be monitored, which not only effectively avoids the dry burning of the induction cooker, but also prevents the panel 110 and the electromagnetic induction coil 220 from being burned due to excessive temperature.
[0046] Since the temperature measuring probe 310 is located on the side of the heat insulation board 120 facing the panel 110, and after one end of the lead wire 320 is electrically connected to the thermistor 312, the other end needs to be wrapped around the bottom of the heat insulation board 120 and electrically connected to the main control board 500. In order to facilitate the electrical connection of the other end of the lead wire 320 with the main control board 500, the other end of the existing lead wire 320 is provided with a terminal 330. The cross-sectional size of the terminal 330 is larger than the overall cross-sectional size of the lead wire 320. In order to shorten the use length of the lead wire 320, in this embodiment, the heat insulation board 120 is provided with a first through hole 122 located below the temperature measuring probe 310 and a second through hole 123 located outside the temperature measuring probe 310, that is, the bottom wall of the sink 121 is provided with the above-mentioned first through hole 122, and the second through hole 123 is located at the bottom wall of the sink 121. On the outside of the sink 121, the first through hole 122 is a strip hole, and the width of the first through hole 122 is larger than the overall cross-sectional size of the lead 320 and smaller than the cross-sectional size of the terminal 330, so that the opening size of the first through hole 122 can be minimized when the lead 320 passes through, and the size of the second through hole 123 is larger than the cross-sectional size of the terminal 330, so that the terminal 330 and the lead 320 can pass through. The second through hole 123 is located on the side of the sink 121 away from the center of the electromagnetic wire reel 200 or the side of the sink 121 close to the center of the electromagnetic wire reel 200. Preferably, the second through hole 123 is located on the side of the sink 121 away from the center of the electromagnetic wire reel 200, and the first through hole 122 extends to the second through hole 123 and is connected to the second through hole 123. With such a design, during assembly, the terminal block 330 is first passed through the second through hole 123 and into the bottom of the heat insulation board 120, and then the terminal block 330 is pulled toward the temperature probe 310. The lead wire 320 will then enter the first through hole 122 and extend downward. There is no need to lay the lead wire 320 along the upper surface of the heat insulation board 120 to the edge of the heat insulation board 120 and then introduce it under the heat insulation board 120, thereby shortening the usable length of the lead wire 320. In addition, since the temperature probe 310 does not block the second through hole 123, air convection can occur at the second through hole 123 to reduce the temperature of the electromagnetic induction coil 220.
[0047] In this embodiment, the equivalent diameter of the second through hole 123 is less than 12 mm. If the second through hole 123 is a square or rectangular hole, the diameter of the inscribed circle forms the equivalent diameter. If the second through hole 123 is a circular hole, the diameter of the circular hole forms the equivalent diameter. This design prevents the test finger from reaching into the second through hole 123 and touching the electromagnetic induction coil 220 on the electromagnetic wire reel 200, ensuring that the product meets safety requirements.
[0048] In addition, in this embodiment, a rib 124 is provided on the side of the heat shield 120 facing the electromagnetic coil 200. The rib 124 abuts against the electromagnetic induction coil 220 to separate the electromagnetic coil 200 from the heat shield 120. This design maintains a certain distance between the electromagnetic coil 200 and the heat shield 120, meeting the creepage distance requirements specified in the test.
[0049] Preferably, the partition rib 124 extends radially along the heat insulation plate 120 so that the extension direction of the partition rib 124 is the same as that of the first through hole 122, and the length of the partition rib 124 is greater than the difference between the inner and outer diameters of the two adjacent turns of the electromagnetic induction coil 220. The partition rib 124 is located on the outside of the first through hole 122 and the second through hole 123. With such a design, when assembling the temperature measuring component 300 and pulling the lead 320, the partition rib 124 is avoided from interfering with the moving path of the lead 320, so that the lead 320 smoothly enters the first through hole 122 through the second through hole 123; in addition, it can also ensure that the partition rib 124 is offset against the electromagnetic induction coil 220, avoiding the partition rib 124 from being stuck in the two adjacent turns of the electromagnetic induction coil 220 and causing isolation failure. Preferably, part of the partition ribs 124 are provided on the bottom wall of the sink 121 , and two of the partition ribs 124 are protruding from the bottom wall of the sink 121 , and the first through hole 122 and the second through hole 123 are both located between the two partition ribs 124 .
[0050] Furthermore, to further reduce the temperature rise of the electromagnetic induction coil 220, the heat shield 120 in this embodiment is provided with a plurality of heat dissipation holes 125. This design enables air convection, further reducing the temperature rise of the electromagnetic induction coil 220. Preferably, some of the partition ribs 124 are positioned near and outside the heat dissipation holes 125 to separate the electromagnetic coil 200 from the heat shield 120.
[0051] Finally, to allow the terminal block 330 to pass through the electromagnetic wire reel 200 and electrically connect to the main control board 500 below it, a gap 230 is created between two adjacent turns of the electromagnetic induction coil 220 in this embodiment. The reel bracket 210 has a perforation corresponding to the gap 230, and the lead wire 320 passes through the gap 230 and the perforation. This design prevents the lead wire 320 from interfering with the winding of the electromagnetic induction coil 220, eliminating the need for a coil avoidance zone. This allows for more and more uniform winding of the electromagnetic induction coil 220, thereby improving heating efficiency and uniformity.
[0052] It can be understood that in other embodiments of the present invention, the first through hole on the bottom wall of the sink can be used for the wiring terminals and leads to pass through, so the design of the second through hole can be omitted. After assembly is completed, the temperature probe can also cover the first through hole, thereby improving the appearance of the insulation board.
[0053] It is understandable that in other embodiments of the present invention, the temperature measuring probe may be directly bonded and fixed to a side of the heat insulation board facing the panel; or the temperature measuring probe may be provided through the heat insulation board.
[0054] It is understandable that in other embodiments of the present invention, the partition ribs may also be arcuate ribs or annular ribs arranged around the center of the electromagnetic wire reel, the partition ribs avoid the first through hole, the second through hole and the heat dissipation hole, and the partition ribs offset the electromagnetic induction coil.
[0055] Example 2
[0056] like Figures 6 to 8 As shown, compared with the first embodiment, this embodiment differs in that a slot 1210 is provided on the side wall of the sink 121, and the temperature measuring bracket 311 has a radially outwardly extending rib 3110, which is inserted into the slot 1210. This design can achieve vertical positioning of the temperature measuring probe 310 through the cooperation between the rib 3110 and the slot 1210, thereby preventing the temperature measuring probe 310 from falling upward out of the sink 121. This further improves the installation reliability of the temperature measuring probe 310 and makes assembly relatively simple and convenient.
[0057] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art will understand that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are intended to be included within the scope of the claims.
Claims
1. An induction cooker, comprising a housing, an electromagnetic wire reel and a temperature measuring assembly arranged in the housing, characterized in that: The shell includes a panel and a heat insulation board arranged above the electromagnetic wire reel. The heat insulation board is located between the panel and the electromagnetic wire reel and blocks the electromagnetic wire reel. The temperature measuring assembly includes a temperature measuring probe and a lead. The temperature measuring probe is installed on the heat insulation board and is located above the electromagnetic wire reel. The temperature measuring probe is against the back of the panel. The heat insulation board is provided with a sinking platform recessed toward the electromagnetic wire reel. The temperature measuring probe is installed in the sinking platform. The side wall of the sinking platform is provided with a slot. The temperature measuring probe includes a temperature measuring bracket and a thermistor installed on the top of the temperature measuring bracket. The temperature measuring bracket has a rib inserted into the slot. The thermistor is against the back of the panel.
2. An induction cooker according to claim 1, characterized in that: One end of the lead is electrically connected to the temperature probe, and the other end is connected to the terminal. The thermal insulation board is provided with a first through hole located below the temperature probe and a second through hole located outside the temperature probe. The first through hole extends to the second through hole and is connected to the second through hole. The first through hole is for the lead to pass through, and the second through hole is for the terminal and the lead to pass through.
3. An induction cooker according to claim 2, characterized in that: The equivalent diameter of the second through hole is less than 12 mm.
4. An induction cooker according to claim 2, characterized in that: A partition rib is protruded from one side of the heat insulation board facing the electromagnetic wire coil, and the partition rib separates the electromagnetic wire coil and the heat insulation board.
5. An induction cooker as claimed in claim 4, characterized in that: The partition ribs extend along an extending direction of the first through hole, and the partition ribs are located outside the first through hole and the second through hole.
6. An induction cooker according to any one of claims 1 to 5, characterized in that: The electromagnetic wire reel comprises a wire reel support and an electromagnetic induction coil wound on the wire reel support. There is a gap between two adjacent turns of the electromagnetic induction coil. The wire reel support is provided with a through-hole corresponding to the gap, and the lead wire passes through the gap and the through-hole.
7. An induction cooker according to any one of claims 1 to 5, characterized in that: There are multiple temperature measuring components, and the multiple temperature measuring components are distributed in a circular array with the center of the electromagnetic wire disk as the center of the circle.
8. An induction cooker according to any one of claims 1 to 5, characterized in that: The heat insulation board is provided with a plurality of heat dissipation holes.