Automobile key test equipment
By introducing guide blocks and engagement slots into the car key testing equipment, the problem of the existing equipment's inability to limit movement is solved, thereby improving the accuracy of car key testing and ensuring the purity of the testing environment, thus guaranteeing the accuracy of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU IND PARK JINGTAIDA AUTOMATION CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-15
AI Technical Summary
Existing car key testing equipment cannot limit the specific position of the car key after the vehicle is placed into the shielded box, resulting in reduced testing accuracy.
The design employs guide blocks and locking slots. The first guide block guides the carrier plate, while the second guide block limits the movement range, ensuring that the car key's position is fixed during testing after entering the shielding box. This, combined with a loop antenna and a Helmholtz coil, forms the testing environment.
This improves the precision of car key testing, ensures the purity of the testing environment and the stability of the location, and enhances the accuracy of test results.
Smart Images
Figure CN224247834U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive key testing technology, specifically to an automotive key testing device. Background Technology
[0002] With the development of intelligent automotive technology and the continuous improvement of vehicle configurations, higher requirements are being placed on automotive components, especially car remote keys, which are used relatively frequently. As an electronic product, remote keys must undergo a series of quality tests before leaving the factory, such as functional testing, waterproofing, dustproofing, electromagnetic interference testing, and lifespan testing. Among these, functional testing is the most important and fundamental step. Remote keys need to pass functional tests such as radio frequency communication and low-frequency magnetic field response to ensure their reliability in complex electromagnetic environments. Testing typically uses a loop antenna and a three-dimensional Helmholtz coil to provide the testing environment.
[0003] Car key testing equipment typically includes a shielded box with test components corresponding to various test items and a drive mechanism for feeding the car key into the shielded box. During testing, the drive mechanism feeds the carrier containing the car key into the test components within the shielded box. However, existing car key testing equipment usually only restricts the direction of movement of the car key after the carrier is fed into the shielded box, and cannot determine the specific position of the car key during testing. When performing functional tests on multiple car keys, it is necessary to fix the position of each car key relative to the test environment to reduce errors. Therefore, existing car key testing equipment does not limit the specific position of the car key after it enters the shielded box during testing, reducing the accuracy of car key testing. Utility Model Content
[0004] The technical solution adopted by this utility model to solve its technical problem is: to provide a car key testing device, comprising:
[0005] A shielded box, the shielded box having an inlet, and a test assembly being installed inside the shielded box;
[0006] The test component includes a support frame and a test module connected to the support frame, the test module being used to form a test environment;
[0007] A mobile component, comprising a drive unit and a mounting plate connected to the output end of the drive unit, the mounting plate being connected to a carrier plate for loading a car key, the drive unit being used to drive the carrier plate to move the car key to the center of the test module.
[0008] The support frame is provided with a first guide block and a second guide block, which are arranged side by side along the moving direction of the carrier plate. The first guide block is closer to the entrance of the shielding box than the second guide block, and the test module is located between the first guide block and the second guide block. The first guide block is provided with a guide groove, and the end of the carrier plate near the entrance of the shielding box is adapted to the guide groove. The end of the carrier plate near the entrance of the shielding box is provided with a first engaging groove, and the second guide block is provided with a second engaging groove. The first engaging groove and the second engaging groove are perpendicular to each other. When the driving component drives the car key to move to the center of the test module, the first engaging groove and the second engaging groove engage with each other.
[0009] Furthermore, a first sensor is provided on both sides of the carrier plate in the width direction. The first sensor is used to detect different models of carrier plates. The carrier plate is provided with multiple detection holes, and the detection holes correspond to the first sensors. The first sensors are arranged facing the detection holes.
[0010] Furthermore, a second sensor is provided on both sides of the carrier plate in the width direction. The second sensor is used to detect the car key. The carrier plate is provided with a cavity adapted to the car key, and the second sensor is positioned towards the cavity.
[0011] Furthermore, the test module includes a loop antenna and three sets of Helmholtz coils arranged orthogonally. A connecting block for placing the loop antenna is connected to the support frame. The loop antenna and the Helmholtz coils are used to cooperate to form a test environment.
[0012] Furthermore, it also includes a button testing module, which includes a mounting block connected to the testing module and multiple pressing cylinders connected to the mounting block. The output end of the pressing cylinder is provided with a pressure block and a magnetic switch. The pressure block corresponds to the button of the car key. The magnetic switch is used to detect whether the pressure block is pressed in place. The pressing cylinder is used to drive the pressure block to press the button of the car key.
[0013] Furthermore, it also includes a brightness testing module, which includes an optical fiber and a first camera. One end of the optical fiber is opposite to the LED light of the car key, and the other end of the optical fiber is opposite to the first camera, which is used to detect the LED light of the car key.
[0014] Furthermore, it also includes a power supply module connected to the support frame. The power supply module includes a moving cylinder and a moving block connected to the output end of the moving cylinder. A probe is connected to the moving block, and the probe is used to supply power to the circuit board of the car key.
[0015] Furthermore, the inlet is connected to a pressure cylinder and a pressure block connected to the output end of the pressure cylinder. The pressure cylinder is used to drive the pressure block to press down the car key.
[0016] Furthermore, the inner wall of the shielding box is provided with ferrite.
[0017] Furthermore, the inlet is equipped with wave-absorbing cotton.
[0018] The beneficial effects of this utility model are: by setting the first guide block and the second guide block, during the process of the carrier plate moving the car key into the shielding box, the first guide block guides the carrier plate, and the second guide block limits the movement range of the carrier plate, so that the specific position of the car key during testing after entering the shielding box is fixed, thereby improving the testing accuracy of the car key. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] In the picture: Figure 1 An overall structural diagram of a car key testing device provided by this utility model;
[0021] Figure 2 for Figure 1 The diagram shows a partial structural diagram of the car key testing device.
[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0023] Figure 4 for Figure 1 The diagram shows a partial structural diagram of the car key testing device.
[0024] Figure 5 for Figure 1 The diagram shows a partial structural diagram of the car key testing device.
[0025] Figure 6 for Figure 2 The diagram shows a partial structural diagram of the test component.
[0026] Figure 7 for Figure 6 The diagram shows the three-dimensional structure of the button testing module and the power supply module.
[0027] Explanation of reference numerals in the attached drawings: 100, Car key testing equipment; 10, Shielding box; 11, Inlet; 111, Pressing cylinder; 112, Pressing block; 113, Wave-absorbing cotton; 12, Main housing; 13, Box cover; 14, Second camera; 15, Third camera; 21, Support frame; 211, First guide block; 2111, Guide groove; 2112, Support block; 212, Second guide block; 2121, Second engagement groove; 22, Test module; 221, Connecting block. ; 222, Helmholtz coil assembly; 30, moving assembly; 31, driving component; 321, mounting plate; 322, carrier plate; 3221, detection hole; 3222, cavity; 3223, first engagement groove; 33, first sensor; 34, second sensor; 40, button test module; 41, mounting block; 42, pressing cylinder; 421, pressure block; 51, first camera; 60, power supply module; 61, moving cylinder; 62, moving block; 621, probe. Detailed Implementation
[0028] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0029] Please refer to Figure 1 and Figure 2 This utility model provides a car key testing device 100, including a shielded box 10, a testing component and a moving component 30, with the testing component located inside the shielded box 10.
[0030] Please refer to Figure 2 and Figure 3 The shielded enclosure 10 has an inlet 11, and ferrite is provided on the inner wall of the shielded enclosure 10. Furthermore, absorbing cotton 113 is provided at the inlet 11. The combination of the ferrite on the inner wall of the shielded enclosure 10 and the absorbing cotton 113 at the inlet 11 effectively suppresses external electromagnetic interference and internal signal reflection, ensuring a clean testing environment. The shielded enclosure 10 includes a main enclosure 12 and a cover 13. The inlet 11 is located on the main enclosure 12, and the cover 13 is fixed to the end of the main enclosure 12 away from the inlet 11 by a quick-clamp.
[0031] Please refer to Figure 2 and Figure 3At the entrance 11 of the shielding box 10, a second camera 14 and a third camera 15 are respectively positioned opposite each other, facing opposite ends of the thickness direction of the carrier plate 322. The second camera 14 and the third camera 15 work together to detect whether the car key has entered the shielding box 10. A pressing cylinder 111 and a pressing block 112 connected to the output end of the pressing cylinder 111 are connected at the entrance 11. The pressing cylinder 111 is used to drive the pressing block 112 to press down the car key.
[0032] Please refer to Figure 4 and Figure 6 The test assembly includes a support frame 21 and a test module 22 connected to the support frame 21. The test module 22 is used to create a test environment for the car key. The test module 22 includes a loop antenna and three sets of Helmholtz coils 222, which are orthogonally arranged. A connecting block 221 for placing the loop antenna is connected to the support frame 21. The Helmholtz coils provide a magnetic field environment, and the loop antenna simulates the receiving and transmitting signal modules of the car key. The loop antenna and the Helmholtz coils work together to form a test environment for functional testing of the car key. The test assembly also includes a control module for driving the loop antenna and the Helmholtz coils. The control module is not shown in the figure. The specific structure of the control module and the specific working principle of the loop antenna and the Helmholtz coils are existing technologies and will not be described in detail in this embodiment.
[0033] Please refer to Figure 3 , Figure 4 and Figure 5 The moving component 30 includes a drive unit 31 and a mounting plate 321 connected to the output end of the drive unit 31. The mounting plate 321 is connected to a carrier plate 322 for loading a car key. The drive unit 31 drives the carrier plate 322 to move the car key from the inlet 11 into the support frame 21. Specifically, in this embodiment, the drive unit 31 is a telescopic cylinder. The mounting plate 321 is used to block the inlet 11 so as to form a sealed space with the shielding box 10 for easy detection. It is understood that the size of the mounting plate 321 is much larger than the size of the inlet 11.
[0034] The support frame 21 is provided with a first guide block 211 and a second guide block 212. The first guide block 211 and the second guide block 212 are arranged side by side along the moving direction of the carrier plate 322. The first guide block 211 is closer to the entrance 11 of the shielding box 10 than the second guide block 212, and the test module 22 is located between the first guide block 211 and the second guide block 212. The first guide block 211 is provided with a guide groove 2111, and the end of the carrier plate 322 near the entrance 11 of the shielding box 10 is adapted to the guide groove 2111. The carrier plate 322 has a first engaging groove 3223 at one end near the entrance 11 of the shielding box 10, and the second guide block 212 has a second engaging groove 2121. The first engaging groove 3223 and the second engaging groove 2121 are perpendicular to each other. When the driving component 31 drives the car key to move to the test module 22, the end of the carrier plate 322 passes through the coil frame of the Helmholtz coil, and the first engaging groove 3223 and the second engaging groove 2121 engage with each other, thereby limiting the movement range of the car key and fixing the position of the car key during testing. At this time, the car key is located at the center of the test environment for functional testing of the car key formed by the loop antenna and the Helmholtz coil. With the setting of the first guide block 211 and the second guide block 212, during the process of the carrier plate 322 moving the car key into the shielding box 10, the first guide block 211 guides the carrier plate 322, and the second guide block 212 limits the movement range of the carrier plate 322, so that the specific position of the car key during testing after entering the shielding box 10 is fixed, thereby improving the testing accuracy of the car key.
[0035] Specifically, in this embodiment, the first guide block 211 is further provided with a support block 2112, which is used to support the process of the end of the carrier plate 322 entering the center of the test environment for the functional test of the car key, which is formed by the loop antenna and the Helmholtz coil.
[0036] Please refer to Figure 2 and Figure 3The carrier plate 322 has a first sensor 33 on both sides of its width direction. The first sensor 33 is used to detect different models of the carrier plate 322. The carrier plate 322 has multiple detection holes 3221, which correspond to the first sensors 33, and the first sensors 33 are positioned facing the detection holes 3221. Each model of carrier plate 322 corresponds to a certain arrangement of detection holes 3221. The arrangement of detection holes 3221 refers to the number of detection holes 3221 that are blocked and the position of the blocked detection holes 3221. The first sensor 33 detects whether the corresponding detection hole 3221 is blocked. By controlling the position and number of blocked detection holes 3221, different models of carrier plate 322 can be distinguished. The carrier plate 322 has a second sensor 34 on both sides of its width direction. The second sensor 34 is used to detect car keys. The carrier plate 322 has a cavity 3222 adapted to the car key, and the second sensor 34 is positioned facing the cavity 3222.
[0037] Specifically, both the first sensor 33 and the second sensor 34 are photoelectric sensors, with the first sensor 33 being farther away from the shielding box 10 relative to the second sensor 34.
[0038] Please refer to Figure 6 and Figure 7 The car key testing device 100 also includes a button testing module 40, which is used to test the button functions of the car key. The button testing module 40 includes a mounting block 41 connected to the testing module 22 and multiple pressing cylinders 42 connected to the mounting block 41. The output end of each pressing cylinder 42 is equipped with a pressure block 421 and a magnetic switch. The pressure block 421 corresponds to a button on the car key. The magnetic switch is used to detect whether the pressure block 421 is properly pressed. The magnetic switch is not shown in the figure. The pressing cylinder 42 is used to drive the pressure block 421 to press the button on the car key. Specifically, in this embodiment, a space is formed between the coil frames of the three sets of Helmholtz coil groups 222. The mounting block 41 is located at the center of the coil frames of the three sets of Helmholtz coil groups 222, and the mounting block 41 is connected to the coil frames of the vertically arranged Helmholtz coil groups 222.
[0039] Specifically, in this embodiment, the number of pressing cylinders 42 is adjusted according to the number of buttons on the car key, and the mounting block 41 and the coil frame are detachably connected by screws, thereby adapting to car keys of different sizes and button layouts.
[0040] Please refer to Figure 2The car key testing device 100 also includes a brightness testing module, which comprises an optical fiber and a first camera 51. The first camera 51 is mounted on the top of the shielded box 10. One end of the optical fiber is aligned with the LED light of the car key, and the other end is aligned with the first camera 51. The first camera 51 is used to detect the LED light of the car key. Specifically, in this embodiment, the optical fiber is not shown. One end of the optical fiber extends out of the shielded box 10 and aligns with the first camera 51. The first camera 51 detects the brightness of the LED light inside the car key by monitoring the brightness of the end of the optical fiber extending out of the shielded box 10. This avoids occupying space by installing the first camera 51 inside the shielded box 10, thus facilitating the layout of the components inside the shielded box 10.
[0041] Please refer to Figure 7 The car key testing device 100 also includes a power supply module 60 connected to the support frame 21. The power supply module 60 includes a moving cylinder 61 and a moving block 62 connected to the output end of the moving cylinder 61. A probe 621 is connected to the moving block 62, and the probe 621 is used to supply power to the circuit board of the car key. Specifically, in this embodiment, there are two probes 621, which are a positive probe 621 and a negative probe 621, respectively.
Claims
1. A car key testing device, characterized in that, include: A shielded box, the shielded box having an inlet, and a test assembly being installed inside the shielded box; The test assembly includes a support frame and a test module connected to the support frame, the test module being used to form a test environment; A mobile component, comprising a drive unit and a mounting plate connected to the output end of the drive unit, the mounting plate being connected to a carrier plate for loading a car key, the drive unit being used to drive the carrier plate to move the car key to the center of the test module. The support frame is provided with a first guide block and a second guide block, which are arranged side by side along the moving direction of the carrier plate. The first guide block is closer to the entrance of the shielding box than the second guide block, and the test module is located between the first guide block and the second guide block. The first guide block is provided with a guide groove, and the end of the carrier plate near the entrance of the shielding box is adapted to the guide groove. The end of the carrier plate near the entrance of the shielding box is provided with a first engaging groove, and the second guide block is provided with a second engaging groove. The first engaging groove and the second engaging groove are perpendicular to each other. When the driving component drives the car key to move to the center of the test module, the first engaging groove and the second engaging groove engage with each other.
2. The car key testing device according to claim 1, characterized in that: The carrier plate is provided with a first sensor on both sides in the width direction. The first sensor is used to detect different models of carrier plates. The carrier plate is provided with a plurality of detection holes, and the detection holes correspond to the first sensors. The first sensors are arranged facing the detection holes.
3. The car key testing device according to claim 1, characterized in that: A second sensor is provided on both sides of the carrier plate in the width direction. The second sensor is used to detect the car key. The carrier plate is provided with a cavity adapted to the car key, and the second sensor is positioned towards the cavity.
4. The car key testing device according to claim 1, characterized in that: The test module includes a loop antenna and three sets of Helmholtz coils arranged orthogonally. A connecting block for placing the loop antenna is connected to the support frame. The loop antenna and the Helmholtz coils are used to cooperate to form a test environment.
5. The car key testing device according to claim 1, characterized in that: It also includes a button testing module, which includes a mounting block connected to the testing module and multiple pressing cylinders connected to the mounting block. The output end of the pressing cylinder is provided with a pressure block and a magnetic switch. The pressure block corresponds to the button of the car key. The magnetic switch is used to detect whether the pressure block is pressed in place. The pressing cylinder is used to drive the pressure block to press the button of the car key.
6. The car key testing device according to claim 1, characterized in that: It also includes a brightness testing module, which includes an optical fiber and a first camera. One end of the optical fiber is opposite to the LED light of the car key, and the other end of the optical fiber is opposite to the first camera, which is used to detect the LED light of the car key.
7. The car key testing device according to claim 1, characterized in that: It also includes a power supply module connected to the support frame. The power supply module includes a moving cylinder and a moving block connected to the output end of the moving cylinder. A probe is connected to the moving block, and the probe is used to supply power to the circuit board of the car key.
8. The car key testing device according to claim 1, characterized in that: The inlet is connected to a pressure cylinder and a pressure block connected to the output end of the pressure cylinder. The pressure cylinder is used to drive the pressure block to press down the car key.
9. The car key testing device according to claim 1, characterized in that: Ferrite is provided on the inner wall of the shielding box.
10. The car key testing device according to claim 1, characterized in that: The entrance is equipped with wave-absorbing cotton.