RKE antenna receiving circuit structure with overload protection

Abstract

The utility model provides a kind of RKE antenna receiving circuit structure with overload protection belongs to circuit technical field, including, circuit board main body, the outer wall of circuit board main body is equipped with mounting slot, quick replacement component, is located at the outer wall place of circuit board main body, wherein:quick replacement component includes receiving and releasing shell, insulating tube, knob, first electrode, reset spring, linkage rod, lifting frame, mounting bracket, lock tongue, second electrode and driving assembly, receiving and releasing shell is embedded in the inner wall place of mounting slot, insulating tube is embedded in the inner wall slotting place of receiving and releasing shell, knob is threadedly connected with the inner wall place of one end of insulating tube.The quick replacement component significantly improves the maintenance efficiency of RKE antenna receiving circuit after PIN diode limiter damage, when element damage is difficult to take out, only need to simply pull driving piece, internal linkage mechanism is unlocked, pre-pressed reset spring instantaneously drives movable electrode to knock out failure element powerfully.

Description

Technical Field

[0001] This utility model belongs to the field of circuit technology, specifically relating to an RKE antenna receiving circuit structure with overload protection. Background Technology

[0002] The RKE antenna is the signal transceiver hub of the remote key entry system. Its design focuses on miniaturization and adaptability to complex environments. The key-end antenna uses a micro patch structure or flexible circuit board to achieve miniaturization. It can also use a magnetic core coil to enhance the magnetic field penetration to resist the shielding of the metal shell. The physical size is greatly compressed, but effective radiation is maintained through circuit tuning. The vehicle-end antenna is hidden inside the vehicle body, such as the rear window interlayer or the dashboard. It uses printed circuit form or is integrated into the shark fin shell. It needs to overcome the interference of metal reflection inside the vehicle and optimize the signal coverage direction.

[0003] In existing RKE antenna receiving circuits, PIN diode limiters used for overload protection are typically soldered directly onto the circuit board or mounted using a fixed clamping structure. When an overload causes the PIN diode to break down and become damaged, its physical structure often deforms or adheres, making it difficult to remove it from its mounting position without damage. Operators need to use tools such as hot air guns to desolder it or laboriously pry it off manually. The process is cumbersome and can easily damage surrounding precision components or circuit board pads. When replacing new components, precise positioning and soldering are also required, which is inefficient and carries operational risks. This maintenance method is time-consuming, requires high levels of expertise, significantly increases system downtime and maintenance costs, and reduces the overall reliability and maintainability of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide an RKE antenna receiving circuit structure with overload protection, aiming to solve the problems raised in the background art.

[0005] A structure for an RKE antenna receiver circuit with overload protection, comprising:

[0006] The circuit board body has a mounting groove on its outer wall.

[0007] A quick-change assembly is located on the outer wall of the circuit board body. The quick-change assembly includes a retractable shell, an insulating tube, a knob, a first electrode, a return spring, a linkage rod, a lifting frame, a mounting bracket, a locking tongue, a second electrode, and a drive assembly. The retractable shell is embedded in the inner wall of the mounting slot. The insulating tube is embedded in the slotted area of ​​the inner wall of the retractable shell. The knob is threaded to one end of the inner wall of the insulating tube. The first electrode is rotatably embedded in the inner wall of the knob. The second electrode is slidably embedded in the other end of the inner wall of the insulating tube. The return spring is sleeved on the outer wall of the second electrode. The mounting bracket is embedded in the inner wall of the retractable shell. The locking tongue is rotatably embedded in the inner wall of the mounting bracket. One end of the linkage rod is rotatably sleeved on the outer wall of the protruding end of the locking tongue. The other end of the linkage rod is rotatably embedded in the inner wall of the lifting frame. The drive assembly is located on the inner wall of the retractable shell.

[0008] Furthermore, the drive assembly includes a pull frame and a moving rod.

[0009] Furthermore, the pulling frame is slidably embedded in the inner wall of the retractable shell, the moving rod is fixedly installed on the outer wall of one end of the pulling frame, and the moving rod is fixedly installed on the inner wall of one end of the lifting frame.

[0010] Furthermore, a torsion spring is fixedly installed on the top of the outer wall of the mounting bracket, and one end of the torsion spring is fixedly installed at the center of the outer wall of one end of the locking tongue.

[0011] Furthermore, the locking tongue matches the slot of the second electrode.

[0012] Furthermore, one end of the second electrode is conical.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The quick-change component significantly improves the maintenance efficiency and convenience of the RKE antenna receiving circuit when critical protection components are damaged due to overload. Its core advantage lies in enabling rapid, non-destructive disassembly and replacement of faulty protection components. When the internal PIN diode limiter used for overload protection undergoes physical structural changes due to breakdown or damage, making it difficult to remove manually, this component provides an efficient solution. The operator only needs to pull the external drive component to instantly release the lock on the movable electrode through the ingenious internal mechanical linkage mechanism. After the lock is released, the pre-compressed reset spring immediately releases its stored energy, driving the movable electrode... The moving electrode rapidly impacts the damaged component, and this impact force effectively ejects the failed PIN diode limiter from the insulating mounting base, completely eliminating the need for complex disassembly steps or tool assistance that might be required in traditional methods. At the same time, the design of this component ensures the ease of installing new components. Simply place the new component in the designated position, turn the knob to drive the fixed electrode to press one end of the component, and its internal locking mechanism will automatically relock the movable electrode in conjunction with the spring and the electrode's tapered design, while simultaneously establishing a reliable electrical connection. The entire replacement process does not require complex soldering or fine adjustments, greatly reducing maintenance downtime. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a perspective view of the insulating tube of this utility model;

[0018] Figure 3 This is a perspective view of the pull frame of this utility model;

[0019] Figure 4 This is an enlarged schematic diagram of utility model A.

[0020] In the diagram: 1. Circuit board body; 2. Retractable shell; 3. Insulating tube; 4. Knob; 5. Pulling frame; 6. First electrode; 7. Return spring; 8. Linkage rod; 9. Lifting frame; 10. Moving rod; 11. Mounting frame; 12. Locking tongue; 13. Torsion spring; 14. Second electrode; 101. Mounting slot. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-4 The technical solution provided in this embodiment is as follows:

[0025] A structure for an RKE antenna receiver circuit with overload protection, comprising:

[0026] The circuit board body 1 has a mounting groove 101 on its outer wall.

[0027] A quick-change assembly is located on the outer wall of the circuit board body 1. The quick-change assembly includes a retractable shell 2, an insulating tube 3, a knob 4, a first electrode 6, a return spring 7, a linkage rod 8, a lifting frame 9, a mounting frame 11, a locking tongue 12, a second electrode 14, and a drive assembly. The retractable shell 2 is embedded in the inner wall of the mounting groove 101. The insulating tube 3 is embedded in the slot of the inner wall of the retractable shell 2. The knob 4 is threaded to one end of the inner wall of the insulating tube 3. The first electrode 6 is rotatably embedded in the inner wall of the knob 4. The second electrode 14 is slidably embedded in the other end of the inner wall of the insulating tube 3. The return spring 7 is sleeved on the outer wall of the second electrode 14. The mounting frame 11 is embedded in the inner wall of the retractable shell 2. The locking tongue 12 is rotatably embedded in the inner wall of the mounting frame 11. One end of the linkage rod 8 is rotatably sleeved on the outer wall of the protruding end of the locking tongue 12. The other end of the linkage rod 8 is rotatably embedded in the inner wall of the lifting frame 9. The drive assembly is located on the inner wall of the retractable shell 2.

[0028] In a specific embodiment of this utility model, the quick component replacement involves first installing the circuit board body 1 into the designated working position and completing the power supply connection. The PIN diode limiter is then embedded inside the insulating tube 3, so that one end of the PIN diode limiter contacts the second electrode 14. The knob 4 drives the first electrode 6 to approach the PIN diode limiter, so that the first electrode 6 electrically connects to the other end of the PIN diode limiter. The locking tongue 12 is used to slot and limit the second electrode 14. When the PIN diode limiter is broken down or damaged, the structure of the PIN diode limiter changes, making it difficult to remove the insulating tube 3. At this time, the drive pull frame 5 moves, causing the moving rod 10 to drive the lifting frame 9 to move. The lifting frame 9 drives the linkage rod 8, and the linkage rod 8 presses the locking tongue 12, causing the locking tongue 12 to disengage. At this time, the second electrode 14, under the action of the return spring 7, impacts the PIN diode limiter, causing the damaged PIN diode limiter to be knocked out of the insulating tube 3.

[0029] Specifically, the drive assembly includes a pull frame 5 and a moving rod 10.

[0030] In a specific embodiment of this utility model, the driving component can ensure the linkage effect.

[0031] Specifically, the pulling frame 5 is slidably embedded in the inner wall of the retracting shell 2, the moving rod 10 is fixedly set on the outer wall of one end of the pulling frame 5, and the moving rod 10 is fixedly set on the inner wall of one end of the lifting frame 9.

[0032] In a specific embodiment of this utility model, the movable rod 10 is fixedly installed on the inner wall of one end of the lifting frame 9, which can ensure stable transmission.

[0033] Specifically, a torsion spring 13 is fixedly installed on the top of the outer wall of the mounting bracket 11, and one end of the torsion spring 13 is fixedly installed at the center of the outer wall of one end of the locking tongue 12.

[0034] In a specific embodiment of this utility model, one end of the torsion spring 13 is fixedly disposed at the center of the outer wall of one end of the locking tongue 12, which allows the locking tongue 12 to be stably engaged.

[0035] Specifically, the locking tongue 12 matches the slot of the second electrode 14.

[0036] In a specific embodiment of this utility model, the locking tongue 12 and the slot of the second electrode 14 are matched to each other, which can ensure the locking effect.

[0037] Specifically, one end of the second electrode 14 is conical.

[0038] In a specific embodiment of this utility model, one end of the second electrode 14 is conical, which can compress the locking tongue 12 for convenient and quick engagement.

[0039] Working principle:

[0040] For quick component replacement, first install the main body 1 of the circuit board into the designated working position and complete the power supply connection. Embed the PIN diode limiter inside the insulating tube 3 so that one end of the PIN diode limiter contacts the second electrode 14. Rotate the knob 4 to move the first electrode 6 closer to the PIN diode limiter, so that the first electrode 6 electrically connects to the other end of the PIN diode limiter. Use the locking tongue 12 to slot and limit the second electrode 14. When the PIN diode limiter breaks down or is damaged, the structure of the PIN diode limiter changes, making it difficult to remove the insulating tube 3. At this time, drive the pulling frame 5 to move, so that the moving rod 10 drives the lifting frame 9 to move. The lifting frame 9 drives the linkage rod 8, and the linkage rod 8 squeezes the locking tongue 12, so that the locking tongue 12 is released from the lock. At this time, the second electrode 14, under the action of the return spring 7, hits the PIN diode limiter, so that the damaged PIN diode limiter is knocked out of the insulating tube 3.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A structure for an RKE antenna receiving circuit with overload protection, characterized in that, include, The circuit board body (1) has an installation groove (101) on its outer wall. A quick-change assembly is located on the outer wall of the circuit board body (1), wherein: the quick-change assembly includes a retractable shell (2), an insulating tube (3), a knob (4), a first electrode (6), a return spring (7), a linkage rod (8), a lifting frame (9), a mounting frame (11), a locking tongue (12), a second electrode (14), and a drive assembly. The retractable shell (2) is embedded in the inner wall of the mounting groove (101), the insulating tube (3) is embedded in the slot of the inner wall of the retractable shell (2), the knob (4) is threaded to the inner wall of one end of the insulating tube (3), and the first electrode (6) is... The second electrode (14) is rotatably embedded in the inner wall of the knob (4), the second electrode (14) is slidably embedded in the inner wall of the other end of the insulating tube (3), the reset spring (7) is sleeved on the outer wall of the second electrode (14), the mounting bracket (11) is embedded in the inner wall of the retractable shell (2), the locking tongue (12) is rotatably embedded in the inner wall of the mounting bracket (11), one end of the linkage rod (8) is rotatably sleeved on the outer wall of the protruding end of the locking tongue (12), the other end of the linkage rod (8) is rotatably embedded in the inner wall of the lifting frame (9), and the drive assembly is located on the inner wall of the retractable shell (2).

2. The RKE antenna receiving circuit structure with overload protection according to claim 1, characterized in that, The drive assembly includes a pull frame (5) and a moving rod (10).

3. The RKE antenna receiving circuit structure with overload protection according to claim 2, characterized in that, The pulling frame (5) is slidably embedded in the inner wall of the retractable shell (2), the moving rod (10) is fixedly set at one end of the outer wall of the pulling frame (5), and the moving rod (10) is fixedly set at one end of the inner wall of the lifting frame (9).

4. The RKE antenna receiving circuit structure with overload protection according to claim 3, characterized in that, A torsion spring (13) is fixedly installed on the top of the outer wall of the mounting bracket (11), and one end of the torsion spring (13) is fixedly installed at the center of the outer wall of one end of the locking tongue (12).

5. The RKE antenna receiving circuit structure with overload protection according to claim 4, characterized in that, The locking tongue (12) matches the slot of the second electrode (14).

6. The RKE antenna receiving circuit structure with overload protection according to claim 5, characterized in that, One end of the second electrode (14) is conical.

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