Coil assembly
Through the polytetrafluoroethylene coil design, the placing grooves, support columns and partition structures are used to reduce contact wear between the coils, which solves the problem of easy wear of tightly arranged coils, and achieves efficient heating and long-life use of coil components.
Patent Information
- Application Number
- CN202422355171.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The tightly arranged coils are prone to wear and accelerate aging, shortening the service life of the coil assembly.
The coil disk made of polytetrafluoroethylene is designed with placing grooves, support columns, clamping grooves, support plates and partitions. Through these structures, the contact area between the coil is reduced, the gap between the coil is increased, and the high temperature resistance and insulation of polytetrafluoroethylene is used to reduce friction and avoid wear.
It improves the service life and heating efficiency of the coil assembly. After power on, the coil assembly can dissipate heat faster, achieving efficient and long-lasting service effect.
Smart Images
Figure CN223297712U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating coils, and more particularly to a coil assembly. Background Art
[0002] A coil assembly is an electrical component consisting of a coil and other components. It is widely used in home appliances, such as dishwashers, induction cookers, electric blankets, hair dryers, electric kettles, rice cookers, dryers, and washing machines. The thermal effect of electric current causes the coil to generate heat, thereby providing a stable heating effect for the home appliance.
[0003] As living standards continue to improve, people's requirements for the efficiency of heating appliances are also increasing. In order to improve the competitive conditions of coil assemblies, more coils are often arranged in a limited space to achieve faster heating speeds. However, the closely arranged coils will be in a state of offsetting each other for a long time. The heat generated by the power will be concentrated in the contact area between the coils, causing the coils in these areas to wear or age earlier, thereby shortening the service life of the entire coil assembly.
[0004] Therefore, new solutions are needed to solve the problem of easy wear and accelerated aging between closely arranged coils. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a coil assembly that, through a new structural setting, achieves the purpose of increasing the heating speed of the coil assembly while avoiding wear and accelerated aging between coils.
[0006] The above technical purpose of the present utility model is achieved through the following technical solutions: a coil assembly, including a coil disk, a placement groove is provided on the top of the coil disk, a support column is provided on the bottom surface of the placement groove, a plurality of clamping grooves are provided on the inner wall of the placement groove and the peripheral wall of the support column along the height direction of the coil disk, a plurality of support plates are detachably connected between the placement groove and the support column, a plurality of partition plates are arranged on the bottom surface of the placement groove along the width direction and the top surface of the support plate along the length direction, the outer wall of the coil disk is an arc-shaped depression, and a plurality of partition plates are arranged on the inner wall of the depression along the width direction.
[0007] The utility model is further configured as follows: the distance between the adjacent partitions along the width direction of the placement slot is greater than the diameter of the coil, the width of the partition is greater than the diameter of the coil, and a wiring space is formed between the adjacent partitions along the width direction of the placement slot and the support plate.
[0008] The utility model is further configured as follows: the clamping groove on the placement groove and the clamping groove on the support column are symmetrically arranged along the width direction of the placement groove, and protrusions are integrally formed at both ends of the length of the support plate. The cross-sectional shape of the protrusion is the same as the cross-sectional shape of the clamping groove, and the protrusion and the recess are clamped with each other.
[0009] The present invention is further configured such that the depth of the clamping groove is greater than the sum of the thickness of the support plate and the height of the first partition, and the bottom surface of the clamping groove is flush with the top surface of the first partition on the coil disk.
[0010] The utility model is further configured as follows: the distance between the adjacent partitions along the depth direction of the placement groove is greater than the diameter of the coil, the width of the partition is greater than the diameter of the coil, and the wiring space is formed between the adjacent partitions along the depth direction of the placement groove.
[0011] The utility model is further configured as follows: a plurality of grooves are opened on the top of the coil disk, the depth of the grooves is the same as the depth of the placement grooves, and the grooves are connected to the placement grooves and the depressions.
[0012] The utility model is further configured as follows: a plurality of fixing plates are integrally formed on the outer peripheral wall of the coil disk; the coil disk, the placement groove and the partition plate 1 on its bottom surface, the support column, the clamping groove, the depression, the partition plate 2, the groove and the fixing plate are all integrally formed by polytetrafluoroethylene injection molding.
[0013] The utility model is further configured as follows: the support plate and the partition plate on the top surface thereof and the protrusions at both ends are all formed as one piece by injection molding of polytetrafluoroethylene.
[0014] In summary, the utility model has the following beneficial effects: polytetrafluoroethylene has good high temperature resistance and insulation properties, so that the manufactured coil disk is safe and durable, and the friction between the coil and the coil disk is reduced by the wiring space 1 and the wiring space 2 whose length and width are both larger than the coil diameter, and the coil assembly is prevented from contacting and wearing with foreign objects by the support column, partition 1 and partition 2 after installation, and the contact and wear between the coils is avoided by a number of partitions 1, support plates and partitions 2, thereby improving the service life of the coil assembly, and while avoiding contact between the coils, the arranged coils obtain a larger divergence area, and can dissipate heat faster after the coil is energized, thereby improving the heating efficiency of the coil assembly and achieving efficient and long-life use of the coil assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 It is an exploded view of the utility model;
[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0018] In the figure: 1. Coil disk; 2. Placement slot; 3. Support column; 4. Snap-in slot; 5. Support plate; 6. Partition 1; 7. Depression; 8. Partition 2; 9. Wire arrangement space 1; 10. Protrusion; 11. Wire arrangement space 2; 12. Groove; 13. Fixing plate. DETAILED DESCRIPTION
[0019] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
[0020] Embodiment: A coil assembly, such as Figure 1-Figure 3 As shown, it includes a coil disk 1 made of polytetrafluoroethylene. Polytetrafluoroethylene has good insulation and wear resistance and can withstand high temperatures of 190°C to 250°C, thereby ensuring the safety and service life of the coil disk 1 during use. An annular placement groove 2 is provided on the top of the coil disk 1, and a cylindrical support column 3 is provided on the bottom surface of the placement groove 2. The axis of the placement groove 2 and the axis of the support column 3 are on the same straight line, so that the width of the annular placement groove 2 is uniform, and a plurality of rectangular clamping grooves 4 are provided on the inner wall of the placement groove 2 and the peripheral wall of the support column 3 along the height direction of the coil disk 1. A plurality of rectangular support plates 5 are detachably connected between the placement groove 2 and the support column 3. The clamping grooves 4 on the placement groove 2 and the clamping grooves 4 on the support column 3 are symmetrically arranged along the width direction of the placement groove 2. A rectangular protrusion 10 is integrally formed at both ends of the length of the support plate 5. The cross-sectional shape of the protrusion 10 is the same as the cross-sectional shape of the clamping groove 4, so that the support plate 5 can be detachably connected to the coil disk 1.
[0021] like Figure 1-Figure 3As shown, the bottom surface of the placement groove 2 along its width direction and the top surface of the support plate 5 along its length direction are arranged with a number of arc-shaped partitions 6, the support plate 5 and the several partitions 6 on its top surface and the protrusions 10 at both ends are formed by hot-melting polytetrafluoroethylene material and then injection molding. A wiring space 9 for arranging the coil is formed between the adjacent partitions 6 and the support plate 5 along the width direction of the placement groove 2. The bottom surface height of the clamping groove 4 is flush with the top surface height of the partition 6 on the coil disk 1, avoiding friction between the bottom of the partition 6 and the coil below it. The outer wall of the coil disk 1 is annular and concave. The recess 7 has a plurality of partitions 8 arranged along its inner wall in the width direction, and a wiring space 11 is formed between the adjacent partitions 8 along the depth direction of the placement groove 2. The distance between the adjacent partitions 6 along the width direction of the placement groove 2 is greater than the diameter of the coil, and the width of the partition 6 is greater than the diameter of the coil. The distance between the adjacent partitions 8 along the depth direction of the placement groove 2 is greater than the diameter of the coil, and the width of the partition 8 is greater than the diameter of the coil, thereby reducing the contact area between the coil and the partition 6, the support plate 5 and the partition 8, and reducing the wear of the coil during the wiring process and subsequent use.
[0022] like Figure 1-Figure 3 As shown, the depth of the clamping groove 4 is greater than the distance between the thickness of the support plate 5 and the height of the partition 6, so that multiple support plates 5 can be installed in the clamping groove 4. Through the recess 7 and the several partitions 8 and support plates 5 inside it, more coils can be arranged on the coil disk 1, thereby increasing the heating efficiency of the coil assembly. The curvature of the partition 6 is the same as the curvature of the coil arrangement. When arranging the coil, a certain pulling force is guaranteed on the coil, so that the arranged coil has a certain tension, avoiding the coils between the support plates 5 adjacent to the circumference of the placement groove 2 from falling due to their own gravity and counteracting the coil below. Through the several partitions 6, several support plates 5 and several partitions 8, contact and wear between the coils on the coil disk 1 are avoided, thereby improving the service life of the coil assembly. While avoiding contact between the coils, a certain gap is created between the arranged coils, so that the arranged coils can obtain a larger divergence area, and can dissipate heat faster after the coils are energized, thereby enhancing the heating efficiency of the coil assembly.
[0023] like Figure 1-Figure 3As shown, two grooves 12 are provided at the top of the coil disk 1, and the grooves 12 are interconnected with the placement groove 2 and the depression 7. The coil can be inserted into and out of the coil disk 1 through the two grooves 12. The depth of the grooves 12 is the same as the depth of the placement groove 2, so as to avoid excessive bending of the coil when inserting or exiting. The outer peripheral wall of the coil disk 1 is fixedly connected with three fixing plates 13. The coil disk 1, the placement groove 2 and the partition 16 on its bottom, the support column 3, the clamping groove 4, the depression 7, the partition 2 8, the groove 12 and the fixing plate 13 are all formed by hot-melting polytetrafluoroethylene material and then injection-molded as a whole. The coil assembly can be fixed in the required area by the fixing plate 13. The support column 3, several top partitions 16 and several partitions 2 8 prevent the coil inside the coil assembly from contacting and wearing with other foreign objects after installation, thereby ensuring the service life of the coil assembly. The support plate 5 and the partition 16 on its top and the protrusions 10 at both ends are all formed by polytetrafluoroethylene injection molding as a whole.
[0024] Working principle: The coil is passed through the groove 12 on one side into the placement groove 2 and arranged between several partitions 6 on the bottom of the placement groove 2, and then the support plate 5 is clamped in the clamping groove 4. The coil is arranged again between the partitions 6 on the several support plates 5. Three layers of coils can be arranged in the placement groove 2 in turn. After arranging the upper limit in the placement groove 2, it is passed out from the groove 12 on the other side and continues to be arranged between several partitions 2 8 in the depression 7. While increasing the number of coil arrangements, the contact wear between the coils is avoided by the partition 1 6, the support plate 5 and the partition 2 8. At the same time, the divergence area of the coil is increased to improve the heating speed, thereby achieving the effect of efficient heating and long life of the coil assembly.
[0025] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A coil assembly comprising a coil disk (1), characterized in that: The top of the coil disk (1) is provided with a placement groove (2), the bottom surface of the placement groove (2) is provided with a support column (3), the inner wall of the placement groove (2) and the peripheral wall of the support column (3) are provided with a plurality of snap-in grooves (4) along the height direction of the coil disk (1), a plurality of support plates (5) are detachably connected between the placement groove (2) and the support column (3), a plurality of partition plates (6) are arranged on the bottom surface of the placement groove (2) along its width direction and the top surface of the support plate (5) along its length direction, the outer wall of the coil disk (1) is an arc-shaped depression (7), and a plurality of partition plates (8) are arranged on the inner wall of the depression (7) along its width direction.
2. The coil assembly according to claim 1, characterized in that: The distance between the adjacent partitions (6) along the width direction of the placement slot (2) is greater than the diameter of the coil, the width of the partition (6) is greater than the diameter of the coil, and a wiring space (9) is formed between the adjacent partitions (6) along the width direction of the placement slot (2) and the support plate (5).
3. The coil assembly according to claim 1, wherein: The clamping groove (4) on the placement groove (2) and the clamping groove (4) on the support column (3) are symmetrically arranged along the width direction of the placement groove (2); protrusions (10) are integrally formed at both ends of the length of the support plate (5); the cross-sectional shape of the protrusion (10) is the same as that of the clamping groove (4); and the protrusion (10) and the recess (7) are clamped to each other.
4. The coil assembly according to claim 1, wherein: The depth of the snap-fit groove (4) is greater than the sum of the thickness of the support plate (5) and the height of the partition plate (6), and the bottom surface of the snap-fit groove (4) is flush with the top surface of the partition plate (6) on the coil disk (1).
5. The coil assembly according to claim 1, characterized in that: The distance between the two adjacent partitions (8) along the depth direction of the placement groove (2) is greater than the diameter of the coil, the width of the two partitions (8) is greater than the diameter of the coil, and a wiring space (11) is formed between the two adjacent partitions (8) along the depth direction of the placement groove (2).
6. The coil assembly according to claim 1, characterized in that: A plurality of grooves (12) are provided at the top of the coil disk (1), the depth of the grooves (12) being the same as the depth of the placement grooves (2), and the grooves (12) are interconnected with the placement grooves (2) and the recesses (7).
7. The coil assembly according to claim 6, characterized in that: The outer peripheral wall of the coil disk (1) is integrally formed with a plurality of fixing plates (13); the coil disk (1), the placement groove (2), the first partition plate (6) on its bottom surface, the support column (3), the clamping groove (4), the recess (7), the second partition plate (8), the groove (12) and the fixing plate (13) are all integrally formed by polytetrafluoroethylene injection molding.
8. The coil assembly according to claim 3, characterized in that: The support plate (5), the partition plate 1 (6) on its top surface, and the protrusions (10) at both ends are all formed in one piece by injection molding of polytetrafluoroethylene.