Anti-aging water heating type PTC (Positive Temperature Coefficient) controller shell
By adopting a composite structure with high temperature resistance, heat insulation, corrosion resistance and buffer layer on the housing of the water-heated PTC controller, the problems of housing aging, deformation and damage are solved, better high temperature resistance and corrosion resistance are achieved, and stability and connection strength are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-06
AI Technical Summary
The housing of existing water-heated PTC controllers is prone to aging, deformation, and damage during long-term use.
The composite structure, consisting of a high-temperature resistant layer (ceramic coating), an insulation layer (aerogel coating), a corrosion-resistant layer (fluororubber coating), and a buffer layer (silicone rubber layer), enhances the high-temperature resistance, heat insulation, and corrosion resistance of the PTC shell, and improves stability through reinforcement and connection structures.
It effectively prevents the PTC shell from aging, deforming and being damaged, maintains good high-temperature resistance, prevents heat conduction and corrosive substances from eroding, and improves stability and connection strength.
Smart Images

Figure CN223978860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water-heated PTC controller housings, and in particular to an anti-aging water-heated PTC controller housing. Background Technology
[0002] Currently, the controller plays a crucial role in water-based heating systems. The housing of a water-based heating controller consists of two parts, one of which is mostly made of PTC material and the other is made of metal. Existing PTC housings are prone to aging, deformation, and damage due to the heat generated during the operation of the water heater over long-term use. Therefore, in order to advance industry technology, better realize the anti-aging function of the housing of water-based PTC controllers, and improve the core technology competitiveness, this application proposes a new implementation scheme that differs from the housing structure of water-based PTC controllers in the prior art. Utility Model Content
[0003] The purpose of this utility model is to solve the problems of aging, deformation and damage that easily occur in the housing of existing water-heated PTC controllers during use, and to propose an anti-aging water-heated PTC controller housing.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An anti-aging water-heating PTC controller housing includes a controller housing composite assembly. The controller housing composite assembly includes a PTC housing body. The inner surface of the PTC housing body is provided with a high-temperature resistant layer, which is a ceramic coating. The inner side of the high-temperature resistant layer is provided with a heat insulation layer, which is an aerogel coating. The outer surface of the PTC housing body is provided with a corrosion-resistant layer. The outer side of the corrosion-resistant layer is provided with a buffer layer. Multiple connecting seats are fixedly connected to the top of the multiple outer walls of the PTC housing body.
[0006] Furthermore, the corrosion-resistant layer is a fluororubber coating.
[0007] Furthermore, the buffer layer is a silicone rubber layer.
[0008] Furthermore, the top and bottom of the connector are provided with connecting holes, and an internally threaded cylinder is fixedly inserted into the connecting holes.
[0009] Furthermore, two mounting bases are fixedly connected to both outer walls of the PTC housing body, and mounting holes are provided on the top of the mounting bases.
[0010] Furthermore, multiple internal connecting ribs are fixedly connected to the inner walls on multiple sides and the bottom inner wall of the PTC housing body.
[0011] Furthermore, multiple outer first reinforcing ribs are fixedly connected to the outer walls of the PTC housing body on multiple sides, and one side of the outer first reinforcing rib is fixedly connected to the top of the mounting base.
[0012] Furthermore, multiple outer reinforcing ribs are fixedly connected to the outer walls of the PTC housing body on multiple sides, and one side of the outer second reinforcing rib is fixedly connected to the connecting seat.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The high-temperature resistant layer uses a ceramic coating to enable the PTC shell to withstand high temperatures. Then, the insulation layer uses an aerogel coating to form an ultra-thin insulation layer on the inner surface of the PTC shell, which can effectively block heat conduction, thus giving the PTC shell good heat insulation performance and preventing the PTC shell from aging, deforming and being damaged.
[0015] 2. The use of fluororubber coating in the corrosion-resistant layer enables the PTC housing to maintain good performance in high-temperature environments, thereby effectively preventing erosion by water and corrosive substances. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the housing of an anti-aging water-heated PTC controller proposed in this utility model;
[0017] Figure 2 A bottom view of the housing of an anti-aging water-heated PTC controller proposed in this utility model;
[0018] Figure 3 This is an enlarged cross-sectional view of the controller housing body, which is a water-heated PTC controller housing for anti-aging purposes proposed in this utility model.
[0019] In the diagram: 1. Controller housing composite assembly; 101. PTC housing body; 102. High temperature resistant layer; 103. Insulation layer; 104. Corrosion resistant layer; 105. Buffer layer; 2. Connecting seat; 3. Connecting hole; 4. Mounting seat; 5. Mounting hole; 6. Inner connecting rib; 7. Outer first reinforcing rib; 8. Outer second reinforcing rib; 9. Internal threaded cylinder. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figures 1-3An anti-aging water-heating PTC controller housing includes a controller housing composite component 1, which includes a PTC housing body 101. The controller housing composite component 1 has good insulation and electromagnetic compatibility. The inner surface of the PTC housing body 101 is coated with a high-temperature resistant layer 102, which is a ceramic coating, enabling the PTC housing body 101 to withstand higher temperatures and improving its high-temperature resistance. An insulation layer 103, which is an aerogel coating, is coated on the inner side of the high-temperature resistant layer 102, forming an ultra-thin insulation layer on the inner surface of the PTC housing body 101. This effectively blocks heat conduction, giving the PTC housing body 101 good thermal insulation performance. The outer surface of the PTC housing body 101 is coated with a corrosion-resistant layer 104, and a buffer layer 105 is coated on the outer side of the corrosion-resistant layer 104. Multiple connecting seats 2 are integrally formed on the top of the multiple outer walls of the PTC housing body 101.
[0022] The corrosion-resistant layer 104 is a fluororubber coating, which enables the PTC housing body 101 to maintain good performance in high-temperature environments, effectively preventing the erosion of water and corrosive substances. The buffer layer 105 is a silicone rubber layer, which enables the PTC housing body 101 to have good high-temperature resistance, thus maintaining a stable buffering effect over a wide temperature range. The top and bottom of the connecting seat 2 are provided with connecting holes 3, and an internally threaded cylinder 9 is fixedly inserted into the connecting holes 3. Bolts are inserted into the internally threaded cylinder 9 and tightened to fix the two PTC housing bodies 101 together. Two mounting seats 4 are integrally formed on both outer walls of the PTC housing body 101. The top of the mounting seat 4 is provided with mounting holes 5, and bolts are inserted into the mounting holes 5. The mounting hole 5 is used to fix the controller housing composite component 1. Multiple inner connecting ribs 6 are integrally formed on the inner walls of multiple sides and the bottom inner wall of the PTC housing body 101, thereby improving the robustness of the PTC housing body 101. Multiple outer first reinforcing ribs 7 are integrally formed on the outer walls of multiple sides of the PTC housing body 101. One side of the outer first reinforcing rib 7 is fixedly connected to the top of the mounting base 4, thereby ensuring the firmness of the connection between the PTC housing body 101 and the mounting base 4. Multiple outer second reinforcing ribs 8 are integrally formed on the outer walls of multiple sides of the PTC housing body 101. One side of the outer second reinforcing rib 8 is fixedly connected to the connecting base 2, thereby ensuring the firmness of the connection between the PTC housing body 101 and the connecting base 2.
[0023] The working principle of this embodiment is as follows: During use, the high-temperature resistant layer 102 adopts a ceramic coating, which enables the PTC shell body 101 to withstand higher temperatures, thereby improving the high-temperature resistance of the PTC shell body 101. Then, the heat insulation layer 103 adopts an aerogel coating to form an ultra-thin heat insulation layer on the inner surface of the PTC shell body 101, which can effectively block the conduction of heat, thereby giving the PTC shell body 101 good heat insulation performance. Next, the corrosion resistant layer 104 adopts a fluororubber coating, which enables the PTC shell body 101 to maintain good performance in high-temperature environments, thereby effectively preventing the erosion of water and corrosive substances. Then, the buffer layer 105 adopts a silicone rubber coating, which enables the PTC shell body 101 to have good high-temperature resistance, thereby maintaining a stable buffering effect over a wide temperature range.
[0024] The two PTC housing bodies 101 are closed together vertically. Bolts are inserted into the internal threaded cylinder 9 and tightened to fix the two PTC housing bodies 101 together. Then, bolts are inserted into the mounting holes 5 to fix the controller housing composite assembly 1.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An anti-aging water heating type PTC controller housing comprising a controller housing composite assembly (1), characterized in that, The controller shell composite assembly (1) comprises a PTC shell body (101), the inner surface of the PTC shell body (101) is provided with a high-temperature-resistant layer (102), the high-temperature-resistant layer (102) is a ceramic coating, the inner side of the high-temperature-resistant layer (102) is provided with a heat preservation layer (103), the heat preservation layer (103) is an aerogel coating, the outer surface of the PTC shell body (101) is provided with a corrosion-resistant layer (104), the outer side of the corrosion-resistant layer (104) is provided with a buffer layer (105), and the top of the outer wall of the PTC shell body (101) is fixedly connected with a plurality of connecting seats (2).
2. The anti-aging water heating PTC controller housing according to claim 1, wherein, The corrosion-resistant layer (104) is a fluororubber coating.
3. The anti-aging water heating PTC controller housing according to claim 1, wherein, The buffer layer (105) is a silicone rubber layer.
4. The anti-aging water heating PTC controller housing according to claim 1, wherein, The top and the bottom of the connecting seat (2) are provided with a connecting hole (3), and an internally threaded cylinder (9) is fixedly inserted into the connecting hole (3).
5. The anti-aging water heating PTC controller housing according to claim 1, wherein, The two side walls of the PTC shell body (101) are fixedly connected with two mounting seats (4), and the top of the mounting seat (4) is provided with a mounting hole (5).
6. The anti-aging water heating PTC controller housing according to claim 1, wherein, The plurality of side walls and the bottom inner wall of the PTC shell body (101) are fixedly connected with a plurality of inner connecting ribs (6).
7. The anti-aging water heating PTC controller housing according to claim 1, wherein, The plurality of side walls of the PTC shell body (101) are fixedly connected with a plurality of outer first reinforcing ribs (7), and one side of the outer first reinforcing rib (7) is fixedly connected with the top of the mounting seat (4).
8. The anti-aging water heating PTC controller housing according to claim 1, wherein, The plurality of side walls of the PTC shell body (101) are fixedly connected with a plurality of outer second reinforcing ribs (8), and one side of the outer second reinforcing rib (8) is fixedly connected with the connecting seat (2).