Injection molding type waterproof antenna

Abstract

The embodiment provides an injection molding type waterproof antenna, and belongs to the technical field of automobile antennae, the waterproof antenna comprises an antenna body, a wire harness and a sealing part, the antenna body is provided with a channel, the wire harness penetrates into the antenna body through the channel, and the sealing part is formed by injection molding and at least covers the joint of the wire harness and the channel. According to the injection molding type waterproof antenna, the channel can be set to be large in size, the wire harness can easily penetrate into the channel, assembling is facilitated, and the sealing grade can be improved to IP68 through the injection molding sealing mode.

Description

Technical Field

[0001] This utility model belongs to the field of automotive antenna technology, and more specifically, relates to an injection-molded waterproof antenna. Background Technology

[0002] Existing automotive built-in antennas, such as Figure 4 As shown, the device includes an antenna body 1', a sealing plug 3', and a wire harness 2'. The sealing plug 3' has a hole for the wire harness 2' to pass through. During assembly, the surface of the wire harness 2' is first coated with oil, and then the wire harness 2' is manually passed through the sealing plug 3'. Finally, the sealing plug 3' is manually connected to the antenna body 1' for sealing. To achieve a waterproof seal, the hole size needs to be designed to be very small. This sealing structure can only meet the IP67 waterproof requirement, and assembly is extremely difficult. Even with oil applied to the wire harness 2', the resistance is still very high when the wire harness 2' passes through the hole. The more wire harnesses 2' are brought out, the more difficult the assembly becomes, often leading to complaints from production line workers. Utility Model Content

[0003] The purpose of this invention is to provide an injection-molded waterproof antenna that solves the problems of difficult assembly and low waterproof rating of existing waterproof antennas.

[0004] To achieve the above objectives, this utility model provides an injection-molded waterproof antenna, comprising:

[0005] An antenna body, wherein the antenna body is provided with at least one channel;

[0006] At least one wire harness, the wire harness passing through the channel into the antenna body;

[0007] The sealing part is integrally injection molded with the antenna body and the wire harness, and seals the connection between the wire harness and the channel.

[0008] Optionally, the injection-molded waterproof antenna also includes:

[0009] A support portion extends outward from the antenna body and is sealed to or integrally formed with the antenna body, and the wire harness passes through the support portion.

[0010] Optionally, the sealing part is a low-pressure injection molded component.

[0011] Optionally, the sealing part is made of thermoplastic elastomer material.

[0012] Optionally, the sealing part is made of thermoplastic material.

[0013] Optionally, the antenna body includes:

[0014] A sealed housing having a receiving space;

[0015] A PCB assembly is mounted in the accommodation space, and the wire harness is connected with the PCB assembly.

[0016] Optionally, the sealed shell comprises:

[0017] an upper shell;

[0018] a lower shell, the upper shell being sealingly connected with the lower shell.

[0019] Optionally, the upper shell and the lower shell are heat fusion connected.

[0020] Optionally, a sealing ring is arranged between the upper shell and the lower shell, and the upper shell and the lower shell are clamped.

[0021] Optionally, a sealing ring is arranged between the upper shell and the lower shell, and the upper shell and the lower shell are connected through screws.

[0022] The injection molded waterproof antenna has the advantages that the channel can be set to a large size, the wire harness can be easily inserted, assembly is facilitated, and the sealing level can be improved to IP68 through the injection sealing mode.

[0023] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the figures, and wherein:

[0025] Figure 1 FIG. 1 shows a schematic structural diagram of an injection molded waterproof antenna according to one embodiment of the present application.

[0026] Figure 2 FIG. 2 shows a schematic structural diagram of an injection molded waterproof antenna not including a sealing part according to one embodiment of the present application.

[0027] Figure 3 FIG. 3 shows an exploded structural schematic diagram of an injection molded waterproof antenna according to one embodiment of the present application.

[0028] Figure 4A schematic structural diagram of a waterproof antenna in the prior art is shown.

[0029] BACKGROUND

[0030] 1', antenna body; 2', wire harness; 3', sealing plug.

[0031] EXPLANATION OF REFERENCE NUMERALS IN EMBODIMENTS

[0032] 1, antenna body; 2, wire harness; 3, sealing part; 4, support part; 5, PCB assembly; 6, upper housing; 7, lower housing. DETAILED DESCRIPTION

[0033] Preferred embodiments of the present application will be described in more detail below. Although the following describes preferred embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application is more thorough and complete, and to convey the scope of the present application to those skilled in the art.

[0034] As shown in FIG. 1, the present embodiment provides an injection molded waterproof antenna, which comprises: Figures 1-3

[0035] an antenna body 1, the antenna body 1 being provided with at least one passage;

[0036] at least one wire harness 2, the wire harness 2 being inserted into the antenna body 1 through the passage;

[0037] a sealing part 3, the sealing part 3 being integrally connected with the antenna body 1 and the wire harness 2 by injection molding, and sealing the connection between the wire harness 2 and the passage.

[0038] Specifically, the injection molded waterproof antenna can set the passage to a larger size, so that the wire harness 2 can be easily inserted, facilitating assembly, and the injection molding sealing method can improve the sealing level to IP68. The number of wire harnesses 2 and the number of passages are not limited, and multiple wire harnesses 2 can share one passage, or each wire harness 2 can be provided with a separate passage.

[0039] Optionally, the injection molded waterproof antenna further comprises:

[0040] a support part 4, the support part 4 extending outwardly from the antenna body 1 and being sealingly connected or integrally formed with the antenna body 1, and the wire harness passing through the support part.

[0041] Specifically, the support part 4 can shape the wire harness 2 before injection molding and sealing, facilitating injection molding operation.

[0042] Optionally, the sealing part 3 is a low-pressure injection molded component.

[0043] ​Specifically, the low-pressure injection molding process is lower in cost than the high-pressure injection molding process and can meet the sealing requirements.

[0044] In this embodiment, the sealing part 3 is made of a thermoplastic elastomer material.

[0045] In another embodiment, the sealing part 3 is made of a thermoplastic material.

[0046] Optionally, the antenna body 1 comprises:

[0047] The sealing shell is formed with an accommodation space;

[0048] The PCB assembly 5 is installed in the accommodation space, and the wire harness 2 is connected to the PCB assembly 5.

[0049] Optionally, the sealing shell comprises:

[0050] The upper shell 6;

[0051] The lower shell 7, and the upper shell 6 is sealingly connected to the lower shell 7.

[0052] Optionally, the upper shell 6 and the lower shell 7 are heat fusion connected.

[0053] Specifically, the heat fusion connection can be laser heat fusion or ultrasonic welding, etc.

[0054] Optionally, a sealing ring is arranged between the upper shell 6 and the lower shell 7, and the upper shell 6 is clamped to the lower shell 7.

[0055] Optionally, a sealing ring is arranged between the upper shell 6 and the lower shell 7, and the upper shell 6 is connected to the lower shell 7 by screws.

[0056] The injection molding type waterproof antenna assembly process in this embodiment is as follows:

[0057] Step 1: Assemble the internal PCB assembly 5;

[0058] Step 2: Pass the wire harness 2 through the support part 4, and then weld the end of the wire harness 2 to the PCB assembly 5;

[0059] Step 3: Install the PCB assembly 5 after welding to the lower shell 7;

[0060] Step 4: Sealingly connect the upper shell 6 to the lower shell 7;

[0061] Fifth step: the antenna body 1 and the wire harness 2 are put into the lower mold of the low-pressure injection mold after being assembled, the antenna body 1 and the wire harness 2 are positioned by the structure on the mold, then the upper mold is closed, after the mold is locked, the liquid plastic, elastomer, rubber or silicone gel heated by the injection molding machine is injected into the connection part of the antenna body 1 and the wire harness 2 through pressure, and the structure cavity is filled according to the preset structure cavity, after a period of time, the upper mold is moved up, the product is taken out and cooled.

[0062] The above has described various embodiments of the utility model, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An injection molded waterproof antenna, characterized by, Comprising: An antenna body (1) provided with at least one channel; At least one wire harness (2) penetrating into the antenna body (1) through the channel; A sealing part (3) integrally connected with the antenna body (1) and the wire harness (2) by injection molding, and sealing the connection between the wire harness (2) and the channel.

2. The injection molded waterproof antenna of claim 1, wherein, Further comprising: A support part (4) extending to the outside of the antenna body (1) and sealingly connected or integrally formed with the antenna body (1), and the wire harness (2) penetrating through the support part (4).

3. The injection molded waterproof antenna according to claim 1, characterized in that: The sealing part (3) is a low-pressure injection molded part.

4. The injection molded waterproof antenna according to claim 3, characterized in that: The sealing part (3) is a thermoplastic elastomer material.

5. The injection molded waterproof antenna according to claim 3, characterized in that: The sealing part (3) is a thermoplastic material.

6. The injection molded waterproof antenna of claim 1, wherein, The antenna body (1) comprises: A sealed shell formed with an accommodation space; A PCB assembly (5) installed in the accommodation space, and the wire harness (2) is connected with the PCB assembly (5).

7. The injection molded waterproof antenna of claim 6, wherein, The sealed shell comprises: An upper shell (6); A lower shell (7), and the upper shell (6) is sealingly connected with the lower shell (7).

8. The injection molded waterproof antenna according to claim 7, characterized in that: The upper shell (6) is hot melt connected with the lower shell (7).

9. The injection molded waterproof antenna according to claim 7, characterized in that: A sealing ring is arranged between the upper shell (6) and the lower shell (7), and the upper shell (6) is clamped with the lower shell (7).

10. The injection molded waterproof antenna according to claim 7, characterized in that: A sealing ring is arranged between the upper shell (6) and the lower shell (7), and the upper shell (6) is connected with the lower shell (7) by screws.

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