Insulation cap type pipe orifice waterproof plug and waterproof structure of PTC electric heater
By using insulated cap-shaped pipe mouth waterproof plugs in the casing of electronic components, the problem of low space utilization in the casing in the prior art is solved, and the effect of improving space utilization and insulation effect while ensuring waterproof performance.
Patent Information
- Application Number
- CN202421754205.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-24
AI Technical Summary
While ensuring the waterproof performance of electronic components, the prior art leads to low utilization of the casing internal space, especially at the connection between the core and the wire, which requires a large amount of the casing internal space.
An insulated cap-type pipe opening waterproof plug is adopted, which includes an upper body and an extension body. The extension body is equipped with an insulated protection hole and a wire hole extension part. The wire hole extension part is connected to the insulated protection hole, and is used to place the wire and components to connect it to increase the space utilization in the sleeve.
While ensuring waterproof performance, it increases the space used in the casing, improves the insulation effect and waterproof performance of the device, and reduces the space occupied at the connection between the components and the wires.
Smart Images
Figure CN222827381U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of pipe opening waterproofing, and in particular to a waterproof structure of an insulating cap-type pipe opening waterproof plug and a PTC electric heater. Background Art
[0002] Electronic components are set in the casing, and wires need to be led out to connect with other accessories. The connection between the wires and the internal components of the casing needs to be insulated and waterproof, which is usually handled by glue filling. Other waterproof structures need to be set inside the casing to ensure the normal use of internal components. The casing port is usually treated by glue filling. This waterproof method ensures that the electronic device has low internal space utilization while ensuring the waterproof effect. For example, the technical solution described in the patent with application number 2019205166961 and the name of a waterproof structure PTC electric heater occupies the internal space of the casing at the connection between the core and the wire. At the same time, the waterproof performance needs to be ensured, and the waterproof plug also needs to occupy more internal space of the casing. The casing is also provided with an insulating layer, and the internal space utilization is low. Utility Model Content
[0003] The purpose of the present application is to provide an insulating cap-type pipe mouth waterproof plug and a waterproof structure of a PTC electric heater. By using the insulating cap-type pipe mouth waterproof plug provided in the present application, it is possible to increase the usable space inside the casing while ensuring the waterproof performance.
[0004] In order to solve the above technical problems, the following technical solutions are adopted:
[0005] In the first aspect, the present application provides an insulating cap-type pipe mouth waterproof plug, comprising an upper body and an extended body, wherein the extended body is arranged on the upper body, and both side edges of the upper body and the extended body are side concave surfaces. At least one insulating protection hole is provided on the table top of the extended body, and at least one wire hole extension portion is provided on the upper body. The extended body and the wire hole extension portion are located on two opposite surfaces of the upper body, and a wire hole is provided on the wire hole extension portion. The wire hole passes through the upper body and communicates with the insulating protection hole, and the aperture of the wire hole is smaller than the aperture of the insulating protection hole.
[0006] Optionally, the upper body and the extension body are an integral structure.
[0007] Optionally, the number of the wire hole extension parts, the wire holes and the insulation protection holes is the same.
[0008] Optionally, a stepped surface is provided on the contact surface between the upper body and the extended body.
[0009] Optionally, the concave curvatures of the side concave surfaces on both sides of the upper body and the extended body are the same.
[0010] In the second aspect, the present application provides a waterproof structure of a PTC electric heater, comprising the insulating cap type pipe mouth waterproof plug provided in the first aspect, and also comprising a sleeve and a tail waterproof plug, a core body is arranged in the sleeve, a tail waterproof plug is arranged at one end of the sleeve, and an insulating cap type pipe mouth waterproof plug is arranged at the other end, the wires crimped on the core body extend from the wire holes of the insulating cap type pipe mouth waterproof plug to be connected with other components, and after the sleeve is compressed, both side edges are recessed inward and are tightly attached to the side edges of the tail waterproof plug and the insulating cap type pipe mouth waterproof plug.
[0011] Optionally, the core includes an electrode sheet, a wire and a heating element, the wire is crimped onto one end of the electrode sheet, the heating element is placed on the electrode sheet, and both are wrapped and fixed by an insulating material.
[0012] Optionally, the cross-section of the inner cavity of the sleeve after being compressed is smaller than the cross-sections of the tail waterproof plug and the insulating cap-type pipe mouth waterproof plug.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. The insulating cap-type pipe mouth waterproof plug provided in the present application is provided with an insulating protection hole, and the inside of the insulating protection hole is used to set components in the casing to improve the insulation effect of the components. The insulating protection hole increases the usable space in the casing, and the insulating protection hole is connected to the wire hole. The connection between the accessories that need to pass through the wire hole and the accessories inside the casing is set in the insulating protection hole, thereby increasing the waterproof performance and insulation performance of this connection. The extended body ensures the contact area between the waterproof plug and the inner cavity of the casing to ensure the waterproof performance. The present application improves the internal space utilization rate of the casing using the waterproof plug while ensuring the waterproof effect of the waterproof plug.
[0015] 2. The waterproof structure of the PTC electric heater provided in the present application sets the insulating cap-shaped pipe mouth waterproof plug at one end of the sleeve, and the internal core and the wire pressing part are set in the insulating protection hole, which effectively utilizes the internal space of the sleeve. After the accessories are placed, the sleeve is pressed and fixed with the internal core and the waterproof plugs at both ends to meet the waterproof performance. The core is wrapped with insulating material, and there is no need to fill the sleeve with an insulating layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is one of the structural schematic diagrams of the waterproof body plug in Example 1 of the present application;
[0017] Figure 2 This is the second structural schematic diagram of the waterproof body plug in Example 1 of the present application;
[0018] Figure 3 is a schematic diagram of the overall structure of the PTC electric heater in Example 2 of the present application;
[0019] Figure 4Schematic diagram of the disassembled structure of the PTC electric heater in Example 2 of the present application;
[0020] Figure 5 It is a schematic diagram of the structure of the tail plug body in Example 2 of the present application.
[0021] Description of reference numerals:
[0022] 1. Waterproof plug body; 101. Upper body; 102. Extension body; 103. Concave side surface; 104. Insulation protection hole; 105. Upper surface; 106. Step surface; 107. Lower surface of extension body; 108. Wire hole; 109. Wire hole extension; 2. Sleeve; 3. Core body; 4. Wire; 5. Tail waterproof plug. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Example
[0024] This embodiment provides an insulating cap type pipe opening waterproof plug, such as Figure 1 As shown, it includes a waterproof plug body 1, which is composed of an upper body 101 and an extension body 102. When in use, a section of the extension body 102 is first inserted into the sleeve for use. The volume of the extension body 102 is smaller than that of the upper body 101. A step surface 106 is formed on the periphery of the surface where the extension body 102 and the upper body 101 contact each other, so that the entire waterproof plug body is more easily placed in the sleeve. Both side edges of the upper body 101 and the extension body 102 are side concave surfaces 103, and the inward concave arc of the two is the same. When in use, the waterproof plug body 1 is placed at the end of the sleeve, and pressure is applied to the upper surface of the sleeve to flatten it. The two side edges of the sleeve will be concave inward due to the pressure. The greater the pressure applied, the greater the concave arc. The concave arc of the side concave surface 103 is the same as the side edge of the sleeve after a certain pressure is applied, so that the side concave surface 103 is tightly attached to the side edge of the sleeve after a specific pressure is applied, thereby ensuring waterproof performance.
[0025] like Figure 1 As shown, two or more wire hole extensions 109 are provided on the upper surface 105 of the upper body 101, and each wire hole extension 109 is provided with a wire hole 108. The wire hole extension 109 is a cylindrical protruding from the upper surface 105, and the wire hole 108 is a circular through hole for passing the wire. The size of the wire hole 108 is adapted to the size of the wire.
[0026] like Figure 2As shown, two or more insulation protection holes 104 are provided on the lower table 107 of the extended body, and the wire hole 108 passes through the upper body 1 from the wire hole extension part 109 and communicates with the insulation protection hole 104. The hole area of the insulation protection hole 104 is larger than the hole area of the wire hole 108. The insulation protection hole 104 is used to place the connection part between the wire passing through the wire hole 108 and the components in the casing to ensure the insulation and waterproofness of the connection part. The number of the wire hole 108 and the insulation protection hole 104 is the same.
[0027] The internal space utilization rate of the casing using the waterproof plug is higher, and too much space will not be occupied by the connection parts of components and wires. At the same time, the contact area between the waterproof plug and the inner cavity of the casing is guaranteed, thereby ensuring the waterproof performance. Example
[0028] This embodiment is based on a waterproof structure of a PTC electric heater provided in Embodiment 1, and further includes a sleeve 2 and a tail waterproof plug 5. The tail waterproof plug 5 is provided at one end of the sleeve 2 and an insulating cap-type waterproof plug is provided at the other end to ensure the waterproof performance inside the sleeve 2.
[0029] like Figure 5 As shown, the tail waterproof plug 5 is a rectangular structure, and the two sides are concave inward, and the concave curvature is the same as the side concave curvature of the insulating cap type waterproof plug used at the end, so as to adapt to the concave of the two sides after the casing is compressed, so that the waterproof plugs at both ends are tightly attached to the inner wall of the casing, playing a waterproof role.
[0030] like Figure 4 As shown, a core 3 is provided inside the sleeve 2, and a wire 4 is crimped on the core 3. The core 3 is connected to other devices outside the sleeve 2 through the wire 4 to transmit signals to the core 3 for operation. The core 3 is formed by crimping an electrode sheet and a wire 4 together, and then a heating element is stacked thereon and then wrapped with an insulating material. The outer layer of the core 3 is wrapped with an insulating material, and there is no need to set an insulating layer in the sleeve 2. The insulating material is directly wrapped on the outer layer of the core 3, which has a better insulation effect and can also reduce the space occupied by the sleeve 2.
[0031] The crimping point between the wire 4 and the core 3 is arranged in the insulating protection hole 104, and the wire 4 extends out from the wire hole 108 to be connected with other components. The wire hole 108 is sealed after the wire 4 is passed through. The crimping point between the wire and the core is in the insulating protection hole to ensure the insulation effect and the waterproof effect, and does not occupy too much internal space of the sleeve 2.
[0032] When in use, the core body 3 is arranged inside the sleeve 2, and the tail waterproof plug 5 and the waterproof plug body 1 are arranged at both ends, and then the sleeve 2 is pressed tightly. The sleeve 2 presses and fixes the internal core body 3, the tail waterproof plug 5 and the waterproof plug body 1. After the sleeve is pressed, the upper and lower surfaces of the sleeve are flat, and the left and right sides are inwardly concave and tightly matched with the two side surfaces of the tail waterproof plug 2 at both ends and the side concave surface 103 of the waterproof plug body 1. After pressing, the inner cavity cross-section of the sleeve 2 is smaller than the cross-section of the tail waterproof plug 5 and the waterproof plug body 1.
[0033] like Figure 3 As shown, the sleeve 2 is provided with a wire 4 extending from one end of the waterproof plug body 1, and the wire 4 is used to connect with other components for the internal core to work. The two sides of the sleeve 2 are concave inward due to the applied pressure pressing the sleeve, and after being concave, they can fit tightly with the waterproof plugs at both ends to increase the waterproof effect.
[0034] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.
Claims
1. An insulating cap type pipe port waterproof plug, characterized in that: It includes an upper body and an extension body, the extension body is arranged on the upper body, the two side edges of the upper body and the extension body are side concave surfaces, at least one insulating protection hole is provided on the table top of the extension body, at least one wire hole extension part is provided on the upper body, the extension body and the wire hole extension part are located on two opposite surfaces of the upper body, a wire hole is provided on the wire hole extension part, the wire hole passes through the upper body and communicates with the insulating protection hole, and the aperture of the wire hole is smaller than the aperture of the insulating protection hole.
2. The insulating cap type pipe opening waterproof plug according to claim 1, characterized in that: The upper body and the extension body are an integrated structure.
3. The insulating cap type pipe opening waterproof plug according to claim 1, characterized in that: The number of the wire hole extension parts, the wire holes and the insulation protection holes is the same.
4. The insulating cap type pipe opening waterproof plug according to claim 1, characterized in that: A step surface is provided on the contact surface between the upper body and the extension body.
5. The insulating cap type pipe opening waterproof plug according to claim 1, characterized in that: The concave curvatures of the side concave surfaces on both sides of the upper body and the extended body are the same.
6. A waterproof structure of a PTC electric heater, characterized in that: It comprises the insulating cap type pipe mouth waterproof plug as described in any one of claims 1 to 5, the waterproof structure also comprising a sleeve and a tail waterproof plug, a core body is arranged in the sleeve, a tail waterproof plug is arranged at one end of the sleeve, and an insulating cap type pipe mouth waterproof plug is arranged at the other end, the wires crimped on the core body extend from the wire holes of the insulating cap type pipe mouth waterproof plug to be connected with other components, and after the sleeve is compressed, both side edges are recessed inward and are tightly attached to the side edges of the tail waterproof plug and the insulating cap type pipe mouth waterproof plug.
7. The waterproof structure of the PTC electric heater according to claim 6, characterized in that: The wire is a multi-core wire, and the sleeve is a sleeve.
8. The waterproof structure of the PTC electric heater according to claim 6 or 7, characterized in that: The core body comprises an electrode sheet, a wire and a heating element. The wire is crimped onto one end of the electrode sheet, and the heating element is placed on the electrode sheet. The two are wrapped and fixed by insulating material.
9. The waterproof structure of the PTC electric heater according to claim 8, characterized in that: The inner cavity cross-section of the sleeve after being compressed is smaller than the cross-sections of the tail waterproof plug and the insulating cap-type pipe opening waterproof plug.