Low-frequency antenna assembly for automobile

Abstract

The utility model discloses a low-frequency antenna assembly for an automobile and belongs to the technical field of automobile electric control. The front slot and the rear slot are formed in the positioning holder, the coil support and the radio frequency circuit board can be directly installed on the positioning holder in an inserting mode in the assembling process, the radio frequency circuit and the coil can be directly connected through the arrangement of the pin base and the clamping pins, an external lead is not needed for connecting the radio frequency circuit and the coil, and the assembling process is simple. Therefore, the condition of displacement of the coil and the radio frequency circuit board in the glue pouring process due to the lead is avoided, and the quality of the antenna is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive electronic control technology, specifically relating to a low-frequency antenna assembly for automobiles. Background Technology

[0002] In new automotive technology applications, Passive Entry & Passive Start (PEPS) systems are rapidly becoming a mainstream and universal solution. Compared to controlling door opening and closing via remote key buttons or starting the car with a traditional key, PEPS systems improve user comfort and security. With a PEPS system, a user holding a validly verified key is allowed to enter the vehicle, open the trunk, and start the engine.

[0003] Currently, when installing capacitive induction door handle antenna modules on car door handles, it is necessary to seal the door handle with glue. However, there is a button harness of connectors between the traditional coil and the RF circuit board. Because this harness is long, the coil and RF circuit are prone to displacement during the glue-filling process, resulting in a high scrap rate. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a low-frequency antenna assembly for automobiles.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: A low-frequency antenna assembly for automobiles includes a positioning retainer, a coil bracket, and a radio frequency circuit board. The positioning retainer has a front slot on its front side and a rear slot on its rear side. The front slot passes through the positioning retainer forward, and the rear slot passes through the positioning retainer backward. Two horizontal insertion holes are opened on the front end face inside the rear slot. Each of the two horizontal insertion holes is provided with a pin seat. Two vertical insertion holes are opened on the upper surface of the positioning retainer between the front and rear slots. The two vertical insertion holes are correspondingly arranged with the two horizontal insertion holes and are interconnected. A locking pin is inserted into the two vertical insertion holes. The bottom of the locking pin abuts against the pin seat in the corresponding horizontal insertion hole. The coil bracket is inserted into the front slot of the positioning retainer. A coil is wound on the coil bracket. The two ends of the coil are locked onto the two locking pins. The radio frequency circuit board is inserted into the rear slot of the positioning retainer. The front end of the radio frequency circuit board is provided with a pin that cooperates with the pin seat.

[0006] Both the left and right sides of the front slot and the rear slot are provided with hook plates for fixing the coil bracket and the radio frequency circuit board.

[0007] The coil bracket has fixing grooves on its left and right sides that cooperate with the hook plate.

[0008] The beneficial effects of this utility model are as follows: By setting front and rear slots on the positioning holder, the coil bracket and the RF circuit board can be directly installed on the positioning holder by plugging in during the assembly process. With the setting of the pin socket and the pin, the RF circuit and the coil can be directly connected without the need for external leads to connect the two. This avoids the situation where the coil and the RF circuit board are displaced during the potting process due to the leads, thereby improving the quality of the antenna. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a disassembly diagram of one of the structures of this utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the horizontal socket and pin socket of this utility model.

[0012] In the diagram: 1. Positioning retainer; 2. Coil bracket; 3. RF circuit board; 4. Front slot; 5. Rear slot; 6. Horizontal socket; 7. Pin socket; 8. Vertical socket; 9. Pin; 10. Coil; 11. Pin; 12. Hook plate; 13. Fixing slot. Detailed Implementation

[0013] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0014] Example: A low-frequency antenna assembly for automobiles, such as Figures 1-3As shown, the device includes a positioning retainer 1, a coil support 2, and an RF circuit board 3. The positioning retainer 1 has a front slot 4 on its front side and a rear slot 5 on its rear side. The front slot 4 extends forward through the positioning retainer 1, and the rear slot 5 extends backward through the positioning retainer 1. Two horizontal insertion holes 6 are formed on the front end face inside the rear slot 5, and each of the two horizontal insertion holes 6 contains a pin seat 7. Two vertical insertion holes 8 are formed on the upper surface of the positioning retainer 1 between the front slot 4 and the rear slot 5. The two vertical insertion holes 8 correspond to and communicate with the two horizontal insertion holes 6. A locking pin 9 is inserted into each of the two vertical insertion holes 8, and the bottom of the locking pin 9 abuts against the corresponding pin in the horizontal insertion hole 6. On the base 7, the coil support 2 is inserted into the front slot 4 of the positioning retainer 1. A coil 10 is wound on the coil support 2. The two ends of the coil 10 are locked onto two pins 9. The radio frequency circuit board 3 is inserted into the rear slot 5 of the positioning retainer 1. The front end of the radio frequency circuit board 3 is provided with a pin 11 that cooperates with the pin seat 7. When the coil 10 is wound, one end is first locked onto one of the pins 9. After the winding is completed, the other end is locked onto the pin 9. Since the bottom of the pin 9 is connected to the two pin seats 7, the radio frequency circuit board 3 is also connected to the two pin seats 7 when it is inserted into the positioning retainer 1, thereby realizing the electrical connection between the coil 10 and the radio frequency circuit board 3 without the need for external leads.

[0015] Both the left and right sides of the front slot 4 and the rear slot 5 are provided with hook plates 12 for fixing the coil bracket 2 and the radio frequency circuit board 3; the left and right sides of the coil bracket 2 are provided with fixing grooves 13 that cooperate with the hook plates 12.

[0016] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A low-frequency antenna assembly for automobiles, comprising a positioning holder (1), a coil support (2), and a radio frequency circuit board (3), characterized in that: The positioning retainer (1) has a front slot (4) on its front side and a rear slot (5) on its rear side. The front slot (4) extends forward through the positioning retainer (1), and the rear slot (5) extends backward through the positioning retainer (1). Two horizontal insertion holes (6) are provided on the front end face inside the rear slot (5), and each of the two horizontal insertion holes (6) is provided with a pin seat (7). Two longitudinal insertion holes (8) are provided on the upper surface of the positioning retainer (1) between the front slot (4) and the rear slot (5). The two longitudinal insertion holes (8) and the two horizontal insertion holes (6) are connected. The two longitudinal sockets (8) are connected to each other and have pins (9) inserted in each other. The bottom of the pins (9) abuts against the pin seat (7) in the corresponding horizontal socket (6). The coil bracket (2) is inserted into the front slot (4) of the positioning retainer (1). A coil (10) is wound on the coil bracket (2). The ends of the two coils (10) of the coil (10) are locked on the two pins (9). The radio frequency circuit board (3) is inserted into the rear slot (5) of the positioning retainer (1). The front end of the radio frequency circuit board (3) is provided with a pin (11) that cooperates with the pin seat (7).

2. The low-frequency antenna assembly for automobiles according to claim 1, characterized in that: The front slot (4) and the rear slot (5) are provided with hook plates (12) on the left and right sides for fixing the coil bracket (2) and the radio frequency circuit board (3).

3. The low-frequency antenna assembly for automobiles according to claim 2, characterized in that: The coil support (2) has fixing grooves (13) on its left and right sides that cooperate with the hook plate (12).

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