加热器密封结构及加热器
By creating a space for the sealant by setting a folded edge between the heater housing and the substrate, the flow of the sealant is controlled, thus solving the problem of poor sealing and achieving reliable sealing and extended lifespan of the heater.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG HELMHOLTZ HEAT TRANSFER TRANS SYST CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional heaters lack a barrier structure in their sealing method, which allows the sealant to spread freely on the contact surface, resulting in an unreliable seal and affecting the heater's service life.
A folded edge is provided between the shell and the substrate to block the flow of sealant, forming a space for the sealant to be contained, controlling the flow direction of the sealant, increasing the bonding area, and ensuring effective filling of the sealant.
It effectively prevents fluid leakage at the sealing points, prevents external moisture from entering, stabilizes the internal pressure of the heater, ensures normal medium transmission, and improves the lifespan and sealing performance of the heater.
Smart Images
Figure CN224521200U_ABST
Abstract
Claims
1. A heater seal structure, characterized by, It includes a housing (2) and a base (3), and also includes a sealing element (4) and at least one adhesive space (1), wherein the sealing element (4) is housed in the adhesive space (1); the housing (2) is provided with a folded edge (5) extending in the thickness direction and located at the outer edge of the housing (2); The adhesive space (1) is formed between the inner surface of the folded edge (5) and the surface of the substrate (3).
2. The heater seal structure of claim 1, wherein, The adhesive space (1) is provided on the entire circumferential length of the heater sealing structure and is an annular groove structure.
3. The heater seal structure of claim 1 or 2, wherein, The folded edge (5) includes a first folded edge (51), and the adhesive space (1) includes a first sealing cavity (11). The first sealing cavity (11) is formed by the inner side of the first folded edge (51) and the side of the substrate (31) for limiting. The sealing element (4) placed in the first sealing cavity (11) is in contact with the first folded edge (51) and the side of the substrate (31); or The angle between the first sealing cavity (11) and the direction perpendicular to the base (3) is a, 0°≤a≤15°.
4. The heater seal structure of claim 3, wherein, The width of the first sealing cavity (11) is 0.5mm-1mm; and / or The height of the first folded edge (51) is higher than or level with the outer surface (33) of the substrate.
5. The heater seal structure of claim 4, wherein, The first sealing cavity (11) includes a groove (111) disposed on the inner side of the first folded edge (51) and / or the side of the base (31); and / or The groove (111) is 1 mm to 2 mm away from the top surface of the first folded edge (51), and has a depth of 0.5 mm to 1.5 mm; or The groove (111) is 1 mm to 2 mm away from the outer surface (33) of the substrate and has a depth of 0.5 mm to 1.5 mm.
6. The heater seal structure of claim 1 or 5, wherein, The folded edge portion (5) further includes a second folded edge portion (52), the second folded edge portion (52) includes a contact portion (521) and a bent portion (522) integral with the contact portion (521) and set at an angle. The adhesive space (1) further includes a second sealing cavity (12), the second sealing cavity (12) is limited by the bent portion (522) and the inner surface (32) of the substrate. The sealing element (4) placed in the second sealing cavity (12) is in contact with the bent portion (522) and the inner surface (32) of the substrate. The angle between the plane connecting the starting and ending lines of the arc surface of the bent portion (522) and the inner surface (32) of the substrate is b; 10°≤b≤45°.
7. The heater sealing structure according to claim 1, characterized in that, At least one adhesive groove (6) is provided on at least one of the opposing sealing contact surfaces of the housing (2) and the substrate (3).
8. The heater seal structure of claim 7, wherein, The adhesive reservoir (6) further includes a first adhesive reservoir (61), which is disposed on the inner side of the contact portion (521) and / or the inner surface (32) of the substrate; or The first adhesive container (61) has a height range of 1 mm to 2 mm and a width range of 3 mm to 5 mm.
9. The heater sealing structure according to claim 1, 2, 7, or 8, characterized in that, The sealing element (4) is a sealing glue.
10. A heater characterised by The heater sealing structure according to any one of claims 1-9, comprising a plurality of the shell (2) and the base (3), and a control circuit and a heating element can be arranged on the base (3).