Heating coil capable of uniformly heating
By employing a combination of dense and sparse windings with a limiting structure in the electromagnetic heating coil, the problem of uneven heating is solved, achieving uniform heating and convenient use of the heating appliance.
Patent Information
- Application Number
- CN202423111202.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing electromagnetic heating coils suffer from uneven heating, especially since the internal temperature of the coil is higher than the external temperature, resulting in concentrated heating and an inability to achieve uniform heating.
The design employs a densely wound outer winding and a loosely wound inner winding, combined with a limiting structure to ensure uniform heating and ease of use.
It achieves a balanced temperature inside and outside the coil, uniform heating of the heating appliance, and is more convenient to use.
Smart Images

Figure CN223540720U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnetic heating technology, and more specifically, to a heating coil for uniform heating. Background Technology
[0002] A uniformly heated coil generates an alternating magnetic field through an electric current, which uses the principle of electromagnetic induction to induce eddy currents inside the heated object, thereby converting electrical energy into heat energy.
[0003] Electromagnetic heating coils are generally divided into two categories based on their characteristics: one is the loosely wound type with the coils wound alternately, and the other is the tightly wound type with the coils wound close together. However, both types of coils share the same characteristic: the temperature inside the coil is higher than the temperature outside. Under the same wire material, the temperature of the tightly wound coil is higher than that of the loosely wound coil. Moreover, the heating amount of the coil is greater in the middle than at the periphery, resulting in uneven heating due to the excessive concentration of heating. Therefore, to address the above problems, a heating coil with uniform heating is proposed. Utility Model Content
[0004] (1) Technical problems to be solved
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heating coil that heats uniformly, which has the function of uniform heating and makes it easy for people to heat the heat receiver evenly.
[0006] (2) Technical solution
[0007] To achieve the above objectives, this utility model provides a heating coil for uniform heating, comprising a housing, a partition fixedly connected inside the housing, an outer guide rail and an inner guide rail fixedly connected to the top of the partition, the inner guide rail being disposed within the outer guide rail, radial grooves formed on the outer guide rail, the inner guide rail, and the top of the housing, an inductor coil body placed within the radial grooves, an outer winding wire and an inner winding wire disposed inside the inductor coil body, the outer winding wire being disposed within the outer guide rail, and the... The inner winding wire is set inside the inner wire guide rail. The top of the partition has multiple vertical slots, and a first magnetic block is placed inside the vertical slots. Multiple mounting frames are fixedly connected to the bottom of the partition. Mounting grooves are opened on the surface of the shell and inside the mounting frames. A second magnetic block is placed inside the mounting grooves. Multiple through holes are opened inside the partition. The outer winding wire surrounds the outer side of the inner winding wire. The outer winding wire is square in shape, and the inner winding wire is round in shape. The outer winding wire is a densely wound winding, and the inner winding wire is a loosely wound winding.
[0008] When using a uniform heating coil according to this technical solution, by setting an outer winding and an inner winding, wherein the outer winding is a closely wound winding, the heating amount of the outer winding to the inside of the heated appliance is relatively high, and the inner winding is a loosely wound winding, the heating amount of the inner winding to the inside of the heated appliance is relatively weak. The use of closely wound and loosely wound windings can help to make the internal and external temperatures of the coil more balanced, and can also help to heat the heated appliance evenly.
[0009] Furthermore, multiple mounting plates are fixedly connected to the bottom of the housing, and mounting ears are fixedly connected to the sides of the mounting plates.
[0010] Furthermore, the mounting ear has a mounting hole inside.
[0011] Furthermore, each of the mounting plates has a movable groove inside, and a limit spring is fixedly connected to the bottom of the movable groove.
[0012] Furthermore, a movable plate is fixedly connected to the top of the limiting spring, and an annular frame is fixedly connected to the sides of the plurality of movable plates.
[0013] Furthermore, the annular frame is slidably connected to the surface of the housing, and multiple anti-slip pads are fixedly connected to the surface of the annular frame.
[0014] (3) Beneficial effects
[0015] In summary, this utility model has the following beneficial effects:
[0016] 1. This uniform heating coil, by setting an outer winding and an inner winding, wherein the outer winding is a closely wound winding, which can make the heating amount of the outer winding to the interior of the heated appliance relatively higher, and the inner winding is a loosely wound winding, which can make the heating amount of the inner winding to the interior of the heated appliance relatively weaker. The use of closely wound and loosely wound windings can help to make the internal and external temperatures of the coil more balanced, and can also help to heat the heated appliance evenly.
[0017] 2. This heating coil for uniform heating, by setting an annular frame, can limit the position of the second magnetic block in the placement groove under the action of the annular frame. Then, under the action of the limiting spring, the position of the annular frame can be limited to prevent the position of the annular frame from becoming loose, making it more convenient to use. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a front view structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the structure of the mounting groove in this utility model;
[0021] Figure 3 This is a side view of the structure of this utility model;
[0022] Figure 4 for Figure 1 A magnified cross-sectional view of the structure at point A in the middle.
[0023] The labels in the attached diagram are:
[0024] 1. Housing; 101. Outer guide rail; 102. Inner guide rail; 103. Radial groove; 104. Vertical groove; 105. Through hole; 106. Mounting frame; 107. Mounting groove; 108. Mounting plate; 109. Mounting ear; 1010. Mounting hole; 1011. Movable groove; 1012. Limiting spring; 1013. Movable plate; 1014. Annular frame; 1015. Anti-slip pad; 1016. Partition plate;
[0025] 2. Inductor coil body; 201. Outer winding wire; 202. Inner winding wire;
[0026] 3. First magnetic block;
[0027] 4. The second magnetic block. Detailed Implementation
[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.
[0029] Example:
[0030] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.
[0031] Please see Figure 1-4This utility model provides a technical solution: a heating coil for uniform heating, including a housing 1, with a partition 1016 fixedly connected inside the housing 1. An outer guide rail 101 and an inner guide rail 102 are fixedly connected to the top of the partition 1016. The inner guide rail 102 is located within the outer guide rail 101. Radial grooves 103 are formed on the outer guide rail 101, the inner guide rail 102, and the top of the housing 1. An inductor coil body 2 is placed within the radial grooves 103. An outer winding wire 201 and an inner winding wire 202 are arranged inside the inductor coil body 2. The outer winding wire 201 is located within the outer guide rail 101, and the inner winding wire 202... The wire body 202 is set inside the inner wire body guide rail 102. The top of the partition 1016 has multiple vertical grooves 104, and the first magnetic block 3 is placed inside the vertical grooves 104. Multiple mounting frames 106 are fixedly connected to the bottom of the partition 1016. The surface of the housing 1 and the inside of the mounting frames 106 have mounting grooves 107, and the second magnetic block 4 is placed inside the mounting grooves 107. Multiple through holes 105 are opened inside the partition 1016. The outer winding wire body 201 surrounds the outer side of the inner winding wire body 202. The outer winding wire body 201 is square, and the inner winding wire body 202 is round. The outer winding wire body 201 is a dense winding, and the inner winding wire body 202 is a sparse winding.
[0032] By adopting the above technical solution, and by setting an outer winding 201 and an inner winding 202, wherein the outer winding 201 is a closely wound winding, the heating amount of the outer winding 201 to the inside of the heated appliance is relatively high, and the inner winding 202 is a loosely wound winding, the heating amount of the inner winding 202 to the inside of the heated appliance is relatively weak. The use of closely wound and loosely wound windings can help to make the internal and external temperatures of the coil more balanced, and can also help to heat the heated appliance evenly.
[0033] See Figure 1 and Figure 4 Multiple mounting plates 108 are fixedly connected to the bottom of the housing 1. Mounting ears 109 are fixedly connected to the sides of the mounting plates 108. Mounting holes 1010 are opened inside the mounting ears 109. Movable grooves 1011 are opened inside the multiple mounting plates 108. Limiting springs 1012 are fixedly connected to the bottom of the movable grooves 1011. Movable plates 1013 are fixedly connected to the top of the limiting springs 1012. Annular frames 1014 are fixedly connected to the sides of the multiple movable plates 1013. Annular frames 1014 are slidably connected to the surface of the housing 1. Multiple anti-slip pads 1015 are fixedly connected to the surface of the annular frames 1014.
[0034] By adopting the above technical solution, by setting the annular frame 1014, the position of the second magnetic block 4 in the placement groove 107 can be limited under the action of the annular frame 1014. Then, under the action of the limiting spring 1012, the position of the annular frame 1014 can be limited, so as to prevent the position of the annular frame 1014 from becoming loose, making it more convenient to use.
[0035] The working principle of this utility model is as follows:
[0036] In use, the outer winding 201 is a close-wound winding, which allows the outer winding 201 to provide a relatively higher heating amount to the inside of the heated appliance. The inner winding 202 is a loose-wound winding, which allows the inner winding 202 to provide a relatively weaker heating amount to the inside of the heated appliance. The use of close-wound and loose-wound windings helps to make the internal and external temperatures of the coil more balanced, and also helps to heat the heated appliance more evenly and make heating more convenient.
[0037] By setting the annular frame 1014, the position of the second magnetic block 4 in the placement groove 107 can be limited under the action of the annular frame 1014. Then, under the action of the limiting spring 1012, the position of the annular frame 1014 can be limited to prevent the position of the annular frame 1014 from becoming loose, making it more convenient to use.
[0038] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A heating coil for uniform heating, comprising a housing (1), characterized in that: A partition (1016) is fixedly connected inside the housing (1). An outer guide rail (101) and an inner guide rail (102) are fixedly connected to the top of the partition (1016). The inner guide rail (102) is located inside the outer guide rail (101). Radial grooves (103) are formed on the top of the outer guide rail (101), the inner guide rail (102), and the housing (1). An inductor coil body (2) is placed in the radial groove (103). An outer winding wire (201) and an inner winding wire (202) are arranged inside the inductor coil body (2). The outer winding wire (201) is located inside the outer guide rail (101), and the inner winding wire (202) is located inside the inner guide rail (102). The top of the partition (1016) has multiple vertical slots (104), and a first magnetic block (3) is placed inside the vertical slots (104). Multiple mounting frames (106) are fixedly connected to the bottom of the partition (1016). Mounting grooves (107) are opened on the surface of the housing (1) and inside the mounting frames (106). A second magnetic block (4) is placed inside the mounting grooves (107). Multiple through holes (105) are opened inside the partition (1016). The outer winding wire (201) surrounds the outer side of the inner winding wire (202). The outer winding wire (201) is square in shape, and the inner winding wire (202) is round in shape. The outer winding wire (201) is a dense winding, and the inner winding wire (202) is a sparse winding.
2. The heating coil for uniform heating according to claim 1, characterized in that: The bottom of the housing (1) is fixedly connected to a plurality of mounting plates (108), and the sides of the mounting plates (108) are fixedly connected to mounting ears (109).
3. The heating coil for uniform heating according to claim 2, characterized in that: The mounting ear (109) has a mounting hole (1010) inside.
4. The heating coil for uniform heating according to claim 3, characterized in that: Each of the mounting plates (108) has a movable groove (1011) inside, and a limit spring (1012) is fixedly connected to the bottom of the movable groove (1011).
5. A heating coil for uniform heating according to claim 4, characterized in that: The top of the limiting spring (1012) is fixedly connected to a movable plate (1013), and a ring frame (1014) is fixedly connected to the sides of the multiple movable plates (1013).
6. A heating coil for uniform heating according to claim 5, characterized in that: The annular frame (1014) is slidably connected to the surface of the housing (1), and a plurality of anti-slip pads (1015) are fixedly connected to the surface of the annular frame (1014).