A heat generating assembly preventing volatile oil leakage
By incorporating a multi-layered sealing structure and condensation cotton within the heating element, the problems of evaporation and oil leakage in the heating element are solved, achieving high-efficiency sealing and safety, and ensuring the stable operation of the element.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGDA TECHNOLOGY (DONGGUAN) CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-07-31
AI Technical Summary
Existing heating components are prone to evaporation and oil leakage during use, leading to performance degradation, environmental pollution, and safety hazards. Existing solutions are either ineffective or costly.
The structure adopts a design in which an outer tube, oil storage cotton, bracket, oil guiding cotton and condensation cotton are arranged in sequence on the inner side of the outer cover. Combined with the multiple seals of silicone plug, silicone kit and clips, the condensation cotton condenses volatiles, the silicone kit regulates pressure, and the difference in porosity between the oil guiding cotton and oil storage cotton forms a capillary pressure gradient to prevent oil evaporation and leakage.
It effectively prevents oil evaporation and leakage, improves the sealing and reliability of the heating element, reduces safety hazards, and maintains the heat dissipation performance and operational stability of the element.
Smart Images
Figure CN224583330U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating element technology, specifically a heating element that prevents evaporation and oil leakage. Background Technology
[0002] In existing technologies, heating elements are widely used in various devices, such as electronic equipment, chemical equipment, medical equipment, and household appliances, to provide a stable heat source to meet specific operational needs. However, these heating elements often face some technical challenges during use, particularly in preventing evaporation and oil leakage.
[0003] Traditional heating elements typically employ an open or semi-open design, which can easily lead to the evaporation and leakage of internal greases or volatile substances during long-term use. Grease evaporation not only degrades the performance of the heating element but can also affect the cleanliness of the surrounding environment and even contaminate and damage other components of the equipment. Furthermore, oil leaks can pose safety hazards, such as grease dripping into high-temperature areas potentially causing fires or other accidents.
[0004] To address these issues, existing technologies have employed several measures, such as adding seals and improving structural design. However, these measures often suffer from drawbacks, including poor effectiveness, high costs, or negative impacts on the heat dissipation performance of the heating element. For example, adding seals may increase the complexity and manufacturing cost of the component, and the aging and wear of the seals can lead to a decrease in anti-evaporation and anti-leakage effects. Improving the structural design may require a complete redesign of the heating element, which not only increases R&D costs but may also affect the component's compatibility and reliability. Summary of the Invention
[0005] In order to overcome the shortcomings of existing technical solutions, this utility model provides a heating element that prevents volatile oil leakage, which can effectively solve the problem of easy volatile oil leakage in heating elements mentioned in the background art.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a heating component that prevents evaporation and oil leakage, comprising: The outer cover has an outer tube, an oil storage cotton, a bracket, and an oil guide cotton arranged sequentially from the outside to the inside on its inner side. The bracket has a hollow area, and the oil storage cotton and the oil guide cotton are attached to each other in the hollow area of the bracket. The upper and lower openings of the outer cover are respectively equipped with a silicone plug and a bottom cover, and the silicone plug has a vent hole that passes through the silicone plug. The condensing cotton is disposed at the upper end of the silicone plug and embedded inside the outer cover; A cotton swab is placed inside the oil-absorbing cotton, and a clip is fixedly connected to the bottom of the cotton swab. The clip is installed on the bottom cover to fix the cotton swab. A heating mesh is disposed at the connection between the cotton swab and the oil-guiding cotton. The silicone kit is a horn-shaped silicone kit, which gradually thickens from the edge of the opening to the root.
[0007] Furthermore, the silicone plug is provided with a sealing ring.
[0008] Furthermore, the oil-storing cotton has a groove on its side, and the vent hole is coaxially aligned with the groove.
[0009] Furthermore, the outward expansion angle of the flared opening of the silicone kit is 30° to 60°.
[0010] Furthermore, the card is connected to the bottom cover by threads.
[0011] Furthermore, the porosity of the oil-guiding cotton is 15%-30% higher than that of the oil-storing cotton, and the contact surfaces of the two are fixed by hot-pressing welding.
[0012] Furthermore, the heating mesh is provided with at least two wires.
[0013] Compared with the prior art, the beneficial effects of this utility model are: Silicone kit design: The flared opening angle of 30°-60°, combined with the thickened structure at the root, enhances the sealing performance, prevents oil from seeping out from the connection, and the opening is thinner than the root to balance the pressure difference on both sides.
[0014] Silicone plug and sealing ring: The silicone plug and sealing ring further seal the upper part of the outer cover, and together with the threaded connection of the bottom cover, form a double seal at the upper and lower ends, blocking the evaporation and oil leakage paths.
[0015] The function of condensing cotton: The condensing cotton embedded inside the outer cover can quickly condense steam and reduce the escape of volatile substances.
[0016] The oil-storing cotton and oil-guiding cotton are designed in synergy: the low-porosity oil-storing cotton focuses on oil storage, while the oil-guiding cotton, with a porosity 15%-30% higher than that of the oil-storing cotton, quickly guides oil. Hot-pressing welding ensures a firm contact surface, and the hollow area of the support promotes the fit between the two, improving the oil guiding efficiency and reducing leakage. Attached Figure Description
[0017] Figure 1 This is an exploded view of the structure of this utility model; Figure 2 This is a three-dimensional structural view of the present invention; Figure 3 This is a schematic cross-sectional view of the structure of this utility model; Figure 4 This is a schematic diagram of the outer tube structure of this utility model.
[0018] Numbering on the map: 1-Condensing cotton, 2-Silicone plug, 3-Outer tube, 4-Cotton swab, 5-Oil storage cotton, 6-Bracket, 7-Oil guiding cotton, 8-Heating mesh, 9-Silicone kit, 10-Outer cover, 11-Bottom cover, 12-Clip, 21-Ventilation hole, 22-Sealing ring, 51-Groove, 101-Small hole. Detailed Implementation
[0019] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.
[0020] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. This disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure. Example
[0021] like Figure 1-4 As shown, this utility model provides a heating component to prevent oil leakage due to evaporation, comprising: The outer cover 10 has a small hole at its lower end. The inner side of the outer cover 10 is provided with an outer tube 3, an oil storage cotton 5, a bracket 6, and an oil guiding cotton 7 from the outside to the inside. The bracket 6 has a hollow area. The oil storage cotton 5 and the oil guiding cotton 7 are attached and connected in the hollow area of the bracket 6. When the heating mesh 8 is working, the hollow area supports the oil storage cotton 5 to introduce oil, so as to prevent the heating mesh 8 from burning dry. The upper and lower openings of the outer cover 10 are respectively equipped with a silicone plug 2 and a bottom cover 11. The silicone plug 2 and the bottom cover 11 are used to seal the heating component. The silicone plug 2 has a vent hole 21 that passes through the silicone plug 2, providing a channel for the atomized oil to leave the heating component. Condensing cotton 1 is placed at the upper end of the silicone plug 2 and embedded in the inner side of the outer cover 10. The condensing cotton 1 adsorbs the volatilized oil vapor and condenses it back. The condensing cotton 1 is made of polypropylene meltblown microfiber with a fiber diameter ≤5μm, a thickness of 2-3mm, and a basis weight of 80-100g / m². Cotton swab 4 is disposed inside the oil-guiding cotton 7. A clip 12 is fixedly connected to the bottom of the cotton swab 4. The clip 12 is installed on the bottom cover 11 to fix the cotton swab 4. The threaded fixation ensures the vertical stability of the cotton swab 4 and avoids displacement caused by vibration. Heating mesh 8 is located at the connection between cotton swab 4 and oil-guiding cotton 7. The heating mesh 8 is made of multi-layer honeycomb metal mesh, with its edges embedded in the groove 51 of the support 6 and fixed by laser welding. It is located at the contact point between cotton swab 4 and oil-guiding cotton 7. The honeycomb structure increases the heating area, and the laser welding ensures heat conduction efficiency. Direct contact with oil-guiding cotton 7 enables rapid heating of oil and reduces energy loss. The two wires of the heating mesh 8 extend downward along the groove 51 on the outside of the cotton rod 4 and pass through the wire holes reserved in the bottom cover 11. The wire holes are filled with high-temperature resistant epoxy resin sealant (temperature resistance ≥150℃). An airtight seal is formed between the wires and the outer cover 10 to prevent oil vapor from escaping from the gaps between the wires. The silicone kit 9 is a trumpet-shaped silicone kit, which gradually thickens from the edge of the opening to the root. The silicone kit 9 prevents oil from seeping out from the gap between the cotton swab 4 and the outer cover 10, prevents oil vapor from escaping from the top during heating, and balances the internal air pressure of the heating element. When the internal pressure exceeds 5 kPa, the weak groove ruptures to release the pressure, and the oil is squeezed from the bottom through the silicone and enters the core. When the weight of the oil exceeds 0.1 N, the folds unfold to form a return channel, and the weight of the oil will squeeze the silicone from the top, allowing the oil to flow back to the outside of the heating element. The silicone kit 9 is made of fluorosilicone rubber with a Shore hardness of A50-A60 and a temperature resistance range of -40℃ to 200℃.
[0022] The silicone kit 9 is tightly fitted into the gap between the cotton swab 4 and the inner wall of the outer cover 10. Its flared opening is fixed to the top flange of the bottom cover 11 by an interference fit, and the edge of the opening is folded outward to fit against the inner wall of the outer cover 10. The axial compression of the silicone kit 9 is 10%-15% of its free height, ensuring that it remains airtight when heated and expanded.
[0023] See Figure 4 The silicone plug 2 is provided with a sealing ring 22. An annular sealing ring 22 is added to the outer edge of the silicone plug 2. It is made of high temperature resistant silicone material (temperature resistance ≥120℃) and forms an interference fit with the inner wall of the outer cover 10. The sealing ring 22 can compensate for the assembly tolerance between the silicone plug 2 and the outer cover 10, forming multiple sealing barriers to prevent oil vapor from escaping from the joint between the silicone plug 2 and the outer cover 10.
[0024] See Figure 4 The oil storage cotton 5 has a groove 51 on its side, and the vent 21 is coaxially aligned with the groove 51.
[0025] See Figure 3 The horn-shaped opening of the silicone kit 9 expands outward at an angle of 30° to 60°.
[0026] The clip 12 and the bottom cover 11 are connected by threads. The bottom of the clip 12 is provided with external threads, and the inner side of the bottom cover 11 is machined with matching internal threads. The thread depth is 2 / 3 of the height of the clip 12. The threaded connection is coated with anti-loosening adhesive. The threaded connection provides mechanical locking force, and the anti-loosening adhesive inhibits the thread backing caused by vibration, ensuring the verticality of the cotton swab 4 is stable and avoiding uneven oil guiding or oil leakage caused by tilting.
[0027] The anti-loosening adhesive is an anaerobic thread-locking adhesive that forms an oil-resistant film after curing, capable of withstanding axial vibration acceleration ≥5g.
[0028] The oil-guiding cotton 7 has a porosity 15%-30% higher than that of the oil-storing cotton 5, and the contact surfaces of the two are fixed by hot-pressing. The porosity difference forms a capillary pressure gradient, which accelerates the migration of oil from the oil-storing cotton 5 to the oil-guiding cotton 7. The hot-pressing eliminates gaps in the contact surfaces, preventing oil from stagnating or leaking at the interface.
[0029] Among them, the oil storage cotton 5 is made of glass fiber cotton with a porosity of 40%-50%, and the oil-conducting cotton 7 is made of ceramic fiber cotton with a porosity of 55%-65%. The two are hot-pressed and fused together at 200-250℃.
[0030] The heating mesh 8 is provided with at least two wires, and multiple wires can control the heating mesh 8 to operate at multiple power levels.
[0031] During use, the oil is stored in the oil-conducting cotton 5 and continuously migrates to the oil-conducting cotton 7 through the capillary pressure gradient; after the heating mesh 8 is powered on, it heats the oil in the oil-conducting cotton 7, causing it to atomize and rise; the oil vapor enters the condensing cotton 1 through the vent 21 of the silicone plug 2, and some of the vapor condenses into liquid and flows back to the oil-conducting cotton 5; the silicone kit 9 adjusts the internal pressure through deformation to prevent leakage and balance the oil volume.
[0032] In the description of this utility model, it should be understood that the terms "middle", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0033] In this invention, unless otherwise expressly specified and limited, the first feature "on" the second feature may be in direct contact with the first feature, or indirect contact with the first feature through an intermediate medium. "A plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0035] The above description is merely illustrative of the embodiments of this utility model and is not intended to limit the scope of this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model without creative labor should be included within the protection scope of this utility model.
Claims
1. A heating element that prevents oil leakage due to evaporation, characterized in that, include: The outer cover has a small hole at its lower end to control the oil inlet volume. The inner side of the outer cover is provided with an outer tube, an oil storage cotton, a bracket, and an oil guide cotton in sequence from the outside to the inside. The bracket has a hollow area. The oil storage cotton and the oil guide cotton are attached to each other in the hollow area of the bracket. The upper and lower openings of the outer cover are respectively equipped with a silicone plug and a bottom cover. The silicone plug has a vent hole that passes through the silicone plug. The condensing cotton is disposed at the upper end of the silicone plug and embedded inside the outer cover; A cotton swab is disposed inside the oil-wicking cotton, and a clip is fixedly connected to the bottom of the cotton swab, the clip being installed on the bottom cover; A heating mesh is disposed at the connection between the cotton swab and the oil-wicking cotton. The silicone kit is a horn-shaped silicone kit, which gradually thickens from the edge of the opening to the root.
2. The oil leakage preventing heating assembly according to claim 1, wherein: The silicone plug is equipped with a sealing ring.
3. The oil leakage preventing heating assembly according to claim 1, wherein: The oil-storing cotton has a groove on its side, and the vent hole is coaxially aligned with the groove.
4. The oil leakage preventing heating assembly according to claim 1, wherein: The flared opening of the silicone kit expands outward at an angle of 30° to 60°.
5. The oil leakage preventing heating assembly according to claim 1, wherein: The card is connected to the bottom cover by threads.
6. The oil leakage preventing heating assembly according to claim 1, wherein: The porosity of the oil-wicking cotton is 15%-30% higher than that of the oil-storage cotton, and the contact surfaces of the two are fixed by hot-pressing fusion.
7. The volatilization and oil leakage preventing heating assembly according to claim 1, wherein: The heating mesh is equipped with at least two wires.