Light-sensing electronic unlocking structure

Abstract

This utility model relates to the field of automobile door unlocking, specifically to a photosensitive electronic unlocking structure, including a handle base, a handle, and a first spring for resetting the handle. The handle is rotatably connected to the handle base. A transmitter / receiver and a reflector are fixedly mounted on the back of the handle base. A blocking part for blocking light is fixedly connected to the handle; the reflector and the transmitter / receiver are located on opposite sides of the blocking part. This solution achieves electronic unlocking through photosensitive sensing, eliminating the need for a microswitch to detect the rotation of the handle.

Description

Technical Field

[0001] This utility model relates to the field of automobile door unlocking, specifically to a photosensitive electronic unlocking structure. Background Technology

[0002] Currently, some new energy vehicles and electric vehicles use electronic unlocking for their doors. The electronic unlocking system includes a handle located inside the door, a handle base, a microswitch, and a spring. The handle is rotatably connected to the handle base and has a rotating part. The probe of the microswitch contacts the rotating part, and the microswitch is electrically connected to the electronic lock portion of the door lock. The spring is used to release and reset the handle after it is pulled.

[0003] When unlocking, the handle is pulled, and the handle rotates on the handle seat. The handle drives the rotating part to rotate together. The probe detects the movement of the rotating part, and the micro switch detects the rotation of the handle, thus transmitting a signal outward. The electronic lock receives the signal and automatically unlocks, thereby realizing the electric unlocking of the car door.

[0004] For example, Chinese patent publication number CN117868611A discloses an intelligent interior door handle assembly for vehicles, which uses a micro-switch detection method for unlocking.

[0005] While microswitches can enable the rotation of the handle and electronic unlocking of the car door, after prolonged use, the probe of the microswitch will wear down due to repeated friction between the probe and the rotating part, resulting in a decrease in detection sensitivity and triggering accuracy. Utility Model Content

[0006] The present invention aims to provide a light-sensing electronic unlocking structure that achieves electronic unlocking through light sensing, eliminating the need to use a microswitch to detect the rotation of the handle.

[0007] To achieve the above objectives, the present invention adopts the following basic technical solution: a light-sensing electronic unlocking structure, including a handle base, a handle, and a first spring for resetting the handle. The handle is rotatably connected to the handle base. A transmitter / receiver and a reflector are fixedly provided on the back of the handle base. A blocking part for blocking light is fixedly connected to the handle. The reflector and the transmitter / receiver are located on both sides of the blocking part, and the transmitter / receiver and the reflector are opposite to each other.

[0008] The principle and advantages of this solution are as follows: The transmitter and receiver are used to emit and receive light. They are electrically connected to the car lock control system. When the handle is not pulled, the blocking part does not block the light emitted by the transmitter and receiver. The light shines onto the reflector, which reflects the light, thus receiving it. When unlocking the door, pulling the handle rotates it on the handle base, moving the blocking part between the reflector and the transmitter and receiver. The blocking part then blocks the light emitted by the transmitter and receiver, preventing it from shining onto the reflector. Thus, the light emitted by the transmitter and receiver is not reflected, and the transmitter and receiver do not receive the light. The transmitter and receiver send the signal of not receiving light to the control system, which then sends a signal to the car lock, causing the car lock to unlock electrically.

[0009] To achieve the above objectives, the present invention adopts the following basic technical solution: a light-sensing electronic unlocking structure, including a handle base, a handle, and a first spring for resetting the handle. The handle is rotatably connected to the handle base. A transmitter and a receiver are fixedly provided on the back of the handle base. A blocking part for blocking light is fixedly connected to the handle. The transmitter and receiver are located on both sides of the blocking part, and the transmitter and receiver are opposite to each other.

[0010] The principle and advantages of this solution are as follows: The transmitter emits light, and the receiver receives the light. The receiver is electrically connected to the car lock control system. When the handle is not pulled, the blocking part does not block the light emitted by the transmitter, and the light shines onto the receiver, which receives the light. When unlocking the car door is required, pulling the handle rotates it on the handle base, causing the handle to move the blocking part between the transmitter and receiver. The blocking part then blocks the light between the transmitter and receiver, preventing the light emitted by the transmitter from reaching the receiver. The receiver then sends the signal of not receiving light to the control system, which in turn sends a signal to the car lock, causing the car lock to unlock electrically.

[0011] In summary, the above-described basic scheme uses optical sensing to detect handle rotation. Once handle rotation is detected, a signal is transmitted to the control system, which then sends a signal to the car lock, enabling the car lock to unlock electrically. This eliminates the need for microswitches to detect handle rotation. On one hand, it provides a new method for detecting handle rotation in electronic unlocking systems. On the other hand, compared to using microswitches, it avoids the wear and tear associated with microswitches. Even after frequent use, the detection sensitivity and trigger accuracy remain unaffected, ensuring the sensitivity and accuracy of handle rotation detection.

[0012] Preferably, as an improvement, the transmitter and receiver include a transmitter and a receiver, wherein the light emitting portion of the transmitter and the light receiving portion of the receiver are both positioned relative to the reflector. Thus, the transmitter is used to emit light, and the receiver is used to receive the light.

[0013] Preferably, as an improvement, the light source is infrared light.

[0014] Preferably, as an improvement, a cable is connected to the blocking part. Therefore, the blocking part also functions to pull the cable. When the electronic unlocking method fails, by increasing the pulling angle of the handle, the blocking part of the handle moves more, pulling the cable, which in turn pulls the lock, thus mechanically unlocking the lock. In this way, pulling the handle not only achieves electronic unlocking but also mechanical unlocking by increasing the pulling angle.

[0015] Preferably, as an improvement, it further includes a rotatable pawl mounted on the handle seat, a second spring providing resistance to the rotation of the pawl, and the end of the pawl being an abutting end, which is opposite to the tail end of the handle;

[0016] When the handle rotates within the range of electronic unlocking, the tail end and the abutting end of the handle are separated; when the handle rotates within the range of mechanical unlocking, the tail end and the abutting end of the handle are in abutting state.

[0017] Therefore, when it is necessary to unlock the car door lock, pull the handle, and the handle will rotate on the handle seat. The handle will first rotate within the rotation range of electronic unlocking. The rotation of the handle is detected by the light sensor of this patent, and the car lock will automatically unlock and the car door can be opened. During this process, the tail end of the handle does not abut against the abutting end of the swing pawl, so the rotation of the handle is relatively effortless and easy.

[0018] As the handle continues to rotate, its tail end will abut against the abutting end. The pawl, under the action of the second spring, provides resistance to the handle's rotation. At this point, the resistance is significant, and once the passenger feels a noticeable resistance, they can stop pulling the handle and release it. The handle will then rotate in the opposite direction to reset under the action of the first spring. Because the passenger does not continue to pull the handle, it will not mechanically unlock.

[0019] If the electronic unlocking method fails, after the end of the handle and the abutting end of the swing pawl come into contact, the handle needs to be pulled further. The handle rotates to a larger angle, and within the rotation range of mechanical unlocking, the handle moves the cable through the blocking part. The cable pulls the mechanical locking part of the lock, thus achieving mechanical unlocking. During the rotation of the handle within the mechanical unlocking range, the end of the handle pushes the abutting end of the swing pawl, causing the swing pawl to rotate on the handle seat. The swing pawl does not obstruct the rotation of the handle. When unlocking is successful, the handle returns to its original position under the action of the first spring, and the swing pawl also returns to its original position under the action of the second spring.

[0020] Therefore, the following beneficial effects are achieved: 1. The first and second springs are not coaxially arranged; they are separately arranged and can be assembled independently. Compared to a coaxial arrangement, this reduces assembly difficulty and improves production efficiency. 2. The swing pawl design makes the boundary between electronic and mechanical unlocking methods clearer. During normal electronic unlocking, when the handle is rotated to the point of contact with the abutment, the resistance to rotation is greater, and passengers can clearly feel the resistance, preventing over-rotation and avoiding further pulling on the cable. 3. When the handle rotates within the electronic unlocking range, the tail end of the handle does not contact the abutment. The swing pawl and second spring do not contribute to the resistance; only the first spring provides resistance, making the handle rotation easier and less strenuous. Only when the abutment of the swing pawl contacts the tail end of the handle does significant resistance occur, resulting in a clearer feel and operation for the passenger.

[0021] Preferably, as an improvement, the handle base is provided with a first support part, and the swing pawl is rotatably connected to the first support part, with the abutting end of the swing pawl bent towards the handle. Thus, the abutting end bends towards the handle and faces the tail of the handle, ensuring that after the handle is rotated at a certain angle, the tail of the handle can abut against the abutting end of the swing pawl.

[0022] Preferably, as an improvement, the first support and the swing pawl are rotatably connected via a pivot. Thus, by setting the pivot, a rotatable connection between the first support and the swing pawl is achieved.

[0023] Preferably, as an improvement, the second spring is a torsion spring, which is sleeved on the rotating shaft. Using a torsion spring as the second spring and sleeved on the rotating shaft reduces the space occupied by the second spring and makes the structure more compact and reasonable.

[0024] Preferably, as an improvement, the swing pawl is provided with a spring clearance space, and the torsion spring is located in the spring clearance space. Thus, by providing the spring clearance space, the swing pawl can avoid the second spring, making the second spring and the swing pawl more compact. At the same time, the second spring does not need to be located on the outside of the swing pawl, resulting in a more reasonable spatial arrangement and a smaller space occupation by the second spring. Attached Figure Description

[0025] Figure 1 This is a perspective view of an electromechanical dual unlocking structure, mainly showing the front structure.

[0026] Figure 2 for Figure 1 Another perspective 3D view, mainly illustrating the rear structure.

[0027] Figure 3 for Figure 1 Another perspective on the stereoscopic view. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] The reference numerals in the accompanying drawings include: handle 1, handle base 2, blocking part 3, cable 4, transmitter and receiver 5, reflector 6, transmitter 7, receiver 8, first spring 9, spindle 10, first support part 11, second spring 12, and swing claw 13.

[0030] Example 1

[0031] The basics are as follows: Figures 1-3 The diagram illustrates a photosensitive electronic unlocking structure, comprising a handle base 2, a handle 1, and a first spring 9 for resetting the handle 1. The handle 1 is rotatably connected to the handle base 2. In this embodiment, the handle 1 and handle base 2 rotate in the following manner: a second support portion is integrally provided on the handle base 2, and a connecting portion is integrally provided on the back of the handle 1. The second support portion and the connecting portion of the handle 1 are rotatably connected via a spindle 10. The spindle 10 can be integrally connected to the connecting portion of the handle 1, with the spindle 10 and the second support portion rotatably configured; alternatively, the spindle 10 can be fixedly configured to the second support portion, with the spindle 10 and the connecting portion of the handle 1 rotatably configured; or the spindle 10 can be independent of the connecting portion and the second support portion of the handle 1, passing through both the connecting portion and the second support portion, without being fixedly fixed to either. In this embodiment, the first spring 9 is a torsion spring, sleeved on the spindle 10. One end of the torsion spring is connected to the handle base 2, and the other end is connected to the handle 1. Pulling handle 1 in this way causes handle 1 to rotate around spindle 10 on handle seat 2, allowing the first spring 9 to store force.

[0032] The back of the handle base 2 is fixed with a transmitter / receiver 5 and a reflector 6 by screws. The transmitter / receiver 5 can be fixed to the handle base 2 by screws, and the reflector 6 can be glued or snapped onto the handle base 2. A blocking part 3 for blocking light is fixedly connected (integrated) to the handle 1; the reflector 6 and the transmitter / receiver 5 are located on opposite sides of the blocking part 3. The transmitter / receiver 5 includes a emitting part 7 (specifically, emitting light through an LED or laser diode) and a receiving part 8 (specifically, receiving light through a photodiode or photoresistor). The light emitting part of the emitting part 7 and the light receiving part of the receiving part 8 are both relative to the reflector 6. The light can be infrared light.

[0033] The transmitter / receiver 5 is connected to the car's power supply. It emits and receives light, and is electrically connected to the car's lock control system. When the handle 1 is not pulled, the blocking part 3 does not block the light emitted by the transmitter 7 of the transmitter / receiver 5. The light emitted by the transmitter / receiver 5 shines on the reflector 6, which reflects the light, thus receiving it at the receiver 8 of the transmitter / receiver 5. When the door needs to be unlocked, the handle 1 is pulled, rotating on the handle base 2. The handle 1 moves the blocking part 3, placing it between the reflector 6 and the transmitter / receiver 5. The blocking part 3 then blocks the light emitted by the transmitter 7 of the transmitter / receiver 5, preventing it from shining on the reflector 6. Therefore, the receiver 8 of the transmitter / receiver 5 does not receive the light. The transmitter / receiver 5 sends the signal indicating no light received to the control system. After analysis, the control system sends a signal to the car lock, which then unlocks the car electrically.

[0034] Of course, in other embodiments, it can also be achieved by the following method: the reflector 6 and the transmitter and receiver 5 are removed, and the back of the handle base 2 is fixed with a transmitter for emitting light and a receiver for receiving light by screws. A blocking part 3 for blocking light is fixedly connected to the handle 1; the transmitter and receiver are located on both sides of the blocking part 3 respectively.

[0035] Therefore, when handle 1 is not pulled, the blocking part 3 does not block the light emitted by the transmitter, and the light emitted by the transmitter shines on the receiver, which receives the light. When the car door needs to be unlocked, handle 1 is pulled, and handle 1 rotates on handle base 2. Handle 1 drives the blocking part 3 to move. The blocking part 3 moves between the transmitter and the receiver, blocking the light between them. The light emitted by the transmitter will not shine on the receiver, so the receiver will not receive the light. The receiver sends the signal of not receiving light to the control system. After analysis, the control system sends a signal to the car lock, and the car lock unlocks electrically.

[0036] Example 2

[0037] This embodiment further defines the feature of embodiment 1. In this embodiment, the blocking part 3 is connected to a cable 4, which can be specifically achieved through... Figure 2 The connection is made using a snap-fit ​​method. The end of the cable 4 furthest from the handle 1 is connected to the mechanical lock part of the vehicle lock.

[0038] The photosensitive electronic unlocking structure in this embodiment also includes a swing claw 13 rotatably mounted on the handle base 2 and a second spring 12 providing resistance to the rotation of the swing claw 13. The end of the swing claw 13 is an abutting end, which is opposite to the tail end of the handle 1. Specifically, the swing claw 13 and the handle base 2 rotate as follows: a first support portion 11 is integrally provided on the back of the handle base 2. There are two first support portions 11, which are opposite to each other. The swing claw 13 is located between the two first support portions 11, and the swing claw 13 and the first support portions 11 are rotatably connected by a rotating shaft. The rotating shaft can be integrally fixed with the swing claw 13 and rotatably mounted on the first support portion 11; or, the rotating shaft is integrally fixed with the first support portion 11 and rotatably mounted on the swing claw 13; or, the rotating shaft is independent of the first support portion 11 and the swing claw 13, and the rotating shaft passes through the first support portion 11 and the swing claw 13, and the rotating shaft is not fixed to the first support portion 11 or the swing claw 13. In this embodiment, the end of the swing pawl 13 furthest from the rotating shaft is the abutting end, which bends toward the handle 1, and the abutting end is aligned with the tail end of the handle 1. Figure 1 (The left end of the middle handle 1) is opposite.

[0039] In this embodiment, the second spring 12 is a torsion spring, which is sleeved on the rotating shaft. Specifically, the swing pawl 13 has a spring clearance space, and the torsion spring is located in the spring clearance space. The torsion spring is located between the two first support parts 11. One end of the torsion spring is connected to the handle seat 2, and the other end of the torsion spring is connected to the swing pawl 13. With this configuration, the structure of the second spring 12, the swing pawl 13, and the rotating shaft is reasonably and compactly arranged.

[0040] In this embodiment, when the handle 1 rotates within the rotation range of electronic unlocking, the tail end and the abutting end of the handle 1 are in a separated state; when the handle 1 rotates within the rotation range of mechanical unlocking, the tail end and the abutting end of the handle 1 are in abutting state.

[0041] The specific implementation process is as follows: Normally, handle 1 is placed flat in the hole of handle seat 2, and the car door lock is in the locked state.

[0042] To unlock the car door locks, pull handle 1. Figure 1The right end of the handle 1 is tilted upwards. The handle 1 rotates on the handle seat 2, and rotates around the spindle 10 as the center of rotation. The handle 1 first rotates within the rotation range of the electronic unlocking. The blocking part 3 blocks the light, and the car lock automatically unlocks, allowing the car door to open. During this process, the tail end of the handle 1 does not abut against the abutting end of the swing pawl 13, making the rotation of the handle 1 relatively effortless and easy. At the same time, after the handle 1 rotates, the first spring 9 stores power.

[0043] As handle 1 continues to rotate, its tail end will abut against the abutting end. The swing pawl 13, under the action of the second spring 12, provides resistance to the rotation of handle 1. At this point, the resistance is relatively large, and once the passenger feels a noticeable resistance, they will stop pulling on handle 1 and release it. Handle 1 will then rotate in the opposite direction to reset under the action of the first spring 9. Since the passenger does not continue to pull on handle 1, it will not unlock mechanically.

[0044] If the electronic unlocking method fails and unlocking cannot be performed electronically, during the rotation within the electronic unlocking range, after the tail end of handle 1 abuts against the abutting end of the swing pawl 13, a larger force needs to be applied to continue pulling handle 1, increasing the rotation angle of handle 1. Handle 1 rotates within the mechanical unlocking range, driving the cable 4 to move. The cable 4 pulls the mechanical lock part of the vehicle lock, thus achieving mechanical unlocking. During the rotation of handle 1 within the mechanical unlocking range, the tail end of handle 1 pushes the abutting end of the swing pawl 13, causing the swing pawl 13 to rotate on the handle seat 2 around the pivot. The swing pawl 13 does not obstruct the rotation of handle 1, while the second spring 12 stores force. When unlocking is successful, handle 1 is released, and handle 1 returns to its original position under the action of the first spring 9. Simultaneously, the swing pawl 13 also rotates in the opposite direction and returns to its original position under the action of the second spring 12.

[0045] In this embodiment, the rotation angle range of the electronic unlocking handle 1 (calculated from when the handle 1 has never been pulled) can be specifically set to 0-30°, and the rotation angle range of the mechanical unlocking handle 1 (calculated from when the handle 1 has never been pulled) can be specifically set to 30-45°. Therefore, when the handle 1 rotates within the 0-30° range, the tail end of the handle 1 does not abut against the end of the swing pawl 13, and the resistance to the rotation of the handle 1 is basically only the resistance of the first spring 9. The resistance to the rotation of the handle 1 is small, and the handle 1 rotates relatively easily and effortlessly. If the handle 1 rotates within the 30-45° range, then the tail end of the handle 1 abuts against the end of the swing pawl 13, and the second spring 12 will provide resistance to the rotation of the swing pawl 13. The swing pawl 13 transmits the resistance to the handle 1, and the resistance to the rotation of the handle 1 is large. Thus, passengers will feel a distinct difference in feel at the two boundaries of electronic and mechanical unlocking rotation.

[0046] In this embodiment, the second spring 12 and the first spring 9 are not coaxially arranged, which facilitates installation and reduces the difficulty and cost of assembly.

[0047] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A photosensitive electronic unlocking structure, comprising a handle base, a handle, and a first spring for resetting the handle, wherein the handle is rotatably connected to the handle base, characterized in that: The back of the handle base is fixedly provided with a transmitter and receiver and a reflector, and a blocking part for blocking light is fixedly connected to the handle; the reflector and the transmitter and receiver are respectively located on both sides of the blocking part, and the transmitter and receiver and the reflector are opposite to each other.

2. The light sensing electronic unlocking structure according to claim 1, wherein: The transmitter and receiver include a transmitter and a receiver, wherein the light emitting part of the transmitter and the light receiving part of the receiver are both relative to the reflector.

3. A light-sensing electronic unlocking structure, comprising a handle seat, a handle and a first spring for resetting the handle, the handle being rotationally connected to the handle seat, characterized in that: The back of the handle is fixedly equipped with a transmitter and a receiver, and a blocking part for blocking light is fixedly connected to the handle; the transmitter and receiver are located on both sides of the blocking part, and the transmitter and receiver are opposite to each other.

4. The photo-sensitive electronic unlocking structure according to any one of claims 1-3, characterized in that: The light source is infrared light.

5. The photo-sensing electronic unlocking structure according to any one of claims 1-3, wherein: A cable is connected to the blocking part.

6. The photo-sensing electronic unlocking structure according to claim 5, wherein: It also includes a rotatable pawl mounted on the handle seat and a second spring that provides resistance to the rotation of the pawl. The end of the pawl is an abutting end, which is opposite to the tail end of the handle. When the handle rotates within the range of electronic unlocking, the tail end and the abutting end of the handle are in a separated state; when the handle rotates within the range of mechanical unlocking, the tail end and the abutting end of the handle are in abutting state.

7. The photo-sensing electronic unlocking structure according to claim 6, wherein: The handle base is provided with a first support part, and the swing pawl is rotatably connected to the first support part, with the opposing end of the swing pawl bent toward the handle.

8. The photo-sensing electronic unlocking structure according to claim 7, wherein: The first support and the swing claw are rotatably connected by a rotating shaft.

9. The photo-sensing electronic unlocking structure according to claim 8, wherein: The second spring is a torsion spring, which is sleeved on the rotating shaft.

10. The photo-sensing electronic unlocking structure according to claim 9, wherein: The swing claw is provided with a spring clearance space, and the torsion spring is located in the spring clearance space.

Images