Glove box actuator unlock mechanism

Abstract

The utility model discloses a glove box executor unlocking mechanism, including mutually cooperate's upper casing and lower casing, be equipped with drive mechanism and transmission rod between upper casing and lower casing, and one end of transmission rod is connected with drive mechanism, and the other end extends outward, the extension end of transmission rod is provided with the protective cover, and transmission rod can reciprocating telescopic through drive mechanism, drive mechanism includes transmission gear, the inner wall of lower casing is provided with the limit block cooperation with transmission gear, drive mechanism still includes screw gear and rack, screw gear is connected with motor transmission, transmission gear is located between screw gear and rack, and is connected with screw gear and rack transmission respectively, this glove box executor unlocking mechanism can realize the opening and locking of glove box when using quick response, still can satisfy the protection of frequently using and motor, and the practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a glove box actuator unlocking mechanism. Background Technology

[0002] As a major storage component in the car's cockpit, the glove box's unlocking reliability, ease of operation, and structural stability directly affect the user experience. With the development of automotive intelligence, glove box unlocking methods have evolved from traditional mechanical unlocking to integrated actuator unlocking.

[0003] The utility model disclosed in CN213510056U is an electric actuator for unlocking, which includes a housing and an unlocking rod. It also includes a motor, a worm gear, and a gear transmission structure disposed within the housing. The worm gear is connected to the output shaft of the motor, and the gear transmission structure meshes with the worm gear. One end of the unlocking rod extends out of the housing, and the unlocking rod located inside the housing is provided with a rack structure that meshes with the gear transmission structure. This invention can solve the technical problems of inconvenient unlocking and large space occupation.

[0004] However, the worm gear and gear transmission structure in the aforementioned unlocking device lacks a limit mechanism, which can easily lead to transmission disengagement failure as the motor continues to run. Furthermore, the motor cannot be powered off for protection, which is not conducive to the locking rod resetting and results in unsatisfactory performance. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems by providing a glove box actuator unlocking mechanism that can quickly respond to open and close the glove box, and can also meet the needs of frequent use and protect the motor.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a glove box actuator unlocking mechanism, comprising an upper housing and a lower housing that cooperate with each other, a driving mechanism and a transmission rod provided between the upper housing and the lower housing, one end of the transmission rod being connected to the driving mechanism and the other end extending outward, a protective cover being provided at the extended end of the transmission rod, the transmission rod being reciprocating and extending through the driving mechanism, the driving mechanism including a transmission gear, and a limiting block cooperating with the transmission gear being provided on the inner wall of the lower housing.

[0007] Preferably, the drive mechanism is driven by a motor, and the motor is connected to the vehicle's power supply via leads.

[0008] Preferably, the drive mechanism further includes a screw gear and a rack. The screw gear is connected to the motor for transmission. The transmission gear is located between the screw gear and the rack and is connected to both the screw gear and the rack for transmission. The rack is fixedly connected to the transmission rod. When the screw gear rotates, it drives the transmission rod to extend and retract through the transmission gear and the rack.

[0009] Preferably, a spring is circumferentially fitted around the transmission rod, with one end of the spring contacting the side wall of the rack and the other end abutting against the inner wall of the lower housing. The spring contracts under force after the transmission rod extends.

[0010] Preferably, the transmission gear is stepped, with a first meshing tooth on the semicircumference of the lower transmission gear and a second meshing tooth on the semicircumference of the upper transmission gear, and the first and second meshing teeth are arranged in opposite directions.

[0011] Preferably, the first meshing tooth engages with the screw gear, and the second meshing tooth engages with the rack.

[0012] Preferably, the limiting block is integrated with the lower housing, and the limiting block is engaged within the bottom surface of the transmission gear.

[0013] Preferably, the edge of the second meshing tooth is provided with a positioning tooth, and the rack is provided with a positioning tooth groove that cooperates with the positioning tooth.

[0014] Preferably, the spring is a tower-shaped spring.

[0015] Preferably, the protective cover includes an outer cover and an inner cover integrally formed, with the end of the outer cover sleeved at the connection between the upper and lower housings, and the inner cover sleeved at the end of the transmission rod.

[0016] This utility model discloses a glove box actuator unlocking mechanism, comprising an upper housing and a lower housing that cooperate with each other. A drive mechanism and a transmission rod are provided between the upper housing and the lower housing. One end of the transmission rod is connected to the drive mechanism, and the other end extends outward. A protective cover is provided at the extended end of the transmission rod. The transmission rod can reciprocate and extend through the drive mechanism. The drive mechanism includes a transmission gear. A limiting block that cooperates with the transmission gear is provided on the inner wall of the lower housing. The drive mechanism also includes a screw gear and a rack. The screw gear is driven by a motor. The transmission gear is located between the screw gear and the rack and is driven by both the screw gear and the rack. Compared with the prior art, this glove box actuator unlocking mechanism has the advantages of being able to quickly respond to open and close the glove box, meeting the needs of frequent use, and protecting the motor. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the glove box actuator unlocking mechanism of this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the overall structure of the glove box actuator unlocking mechanism of this utility model. Figure 2 .

[0019] Figure 3This is a schematic diagram of the internal structure of the glove box actuator unlocking mechanism of this utility model.

[0020] Figure 4 This is a schematic diagram of the drive mechanism in the glove box actuator unlocking mechanism of this utility model. Figure 1 .

[0021] Figure 5 This is a schematic diagram of the drive mechanism in the glove box actuator unlocking mechanism of this utility model. Figure 2 .

[0022] Figure 6 This utility model Figure 5 A magnified structural diagram of point A in the middle.

[0023] Figure 7 This is a schematic diagram of the drive mechanism in the glove box actuator unlocking mechanism of this utility model. Figure 3 .

[0024] Figure 8 This is a schematic diagram of the transmission gear in the glove box actuator unlocking mechanism of this utility model.

[0025] Figure 9 This is a schematic diagram of the rotation trajectory of the transmission gear in the glove box actuator unlocking mechanism of this utility model.

[0026] Figure 10 This is a cross-sectional view of the glove box actuator unlocking mechanism of this utility model.

[0027] Figure 11 This utility model Figure 10 A magnified structural diagram at point B in the middle.

[0028] In the diagram: 1. Upper housing; 2. Lower housing; 3. Motor; 31. Lead wire; 4. Screw gear; 5. Transmission gear; 51. First meshing tooth; 52. Second meshing tooth; 53. Positioning tooth; 54. Limiting block; 6. Rack; 7. Transmission rod; 8. Spring; 9. Protective cover; 91. Outer cover; 92. Inner cover. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] Please refer to Figure 1-2A glove box actuator unlocking mechanism includes an upper housing 1 and a lower housing 2 that cooperate with each other. A drive mechanism and a transmission rod 7 are provided between the upper housing 1 and the lower housing 2. One end of the transmission rod 7 is connected to the drive mechanism, and the other end extends outward. A protective cover 9 is provided at the extended end of the transmission rod 7. The transmission rod 7 can reciprocate and extend through the drive mechanism.

[0031] When the transmission rod 7 extends, it presses against the glove box latch to unlock the glove box. When the transmission rod 7 retracts, the glove box closes and locks. In use, the glove box can be unlocked by touching the screen on the vehicle's infotainment system. At this time, the drive mechanism is driven by a signal command to extend the transmission rod 7. After the transmission rod 7 extends, the glove box unlocks. After unlocking, the transmission rod 7 automatically resets and retracts. After the glove box is closed, the actuator locks. This process can be repeated.

[0032] In this embodiment, the drive mechanism is driven by a motor 3, which is connected to the vehicle's power supply via a lead wire 31, thereby providing power to the actuator.

[0033] Please refer to Figure 3-7 Specifically, the driving mechanism includes a screw gear 4, a transmission gear 5, and a rack 6. The screw gear 4 is connected to the motor 3. The transmission gear 5 is located between the screw gear 4 and the rack 6, and is connected to both the screw gear 4 and the rack 6. The rack 6 is fixedly connected to the transmission rod 7. When the screw gear 4 rotates, it drives the transmission rod 7 to extend and retract through the transmission gear 5 and the rack 6.

[0034] In this embodiment, the transmission gear 5 is stepped. The lower transmission gear 5 has a first meshing tooth 51 on its semicircumference and a second meshing tooth 52 on its semicircumference. Since the transmission gear 5 is located between the screw gear 4 and the rack 6, the first meshing tooth 51 and the second meshing tooth 52 are arranged in opposite directions, so that the whole can be linked.

[0035] The first meshing tooth 51 engages with the screw gear 4, and the second meshing tooth 52 engages with the rack 6.

[0036] like Figure 7 As shown, when the motor 3 receives the command, it starts to drive the operation. After the drive, the screw gear 4 drives the transmission gear 5 to rotate through the first meshing tooth 51. After the transmission gear 5 rotates, it drives the rack 6 to translate through the second meshing tooth 52. Since the rack 6 is fixedly connected to the transmission rod 7, the translation of the rack 6 can make the transmission rod 7 extend and retract, thereby realizing the quick locking of the glove box.

[0037] After the transmission rod 7 extends and unlocks, in order to achieve automatic reset and retraction of the transmission rod 7, a spring 8 is sleeved around the circumference of the transmission rod 7. One end of the spring 8 contacts the side wall of the rack 6, and the other end abuts against the inner wall of the lower housing 2. The spring 8 is always in a compressed state. When the transmission rod 7 extends, the rack 6 further compresses the spring 8. When the motor 3 stops running due to power interruption, the spring 8 pushes the rack 6 (transmission rod 7) to move in the direction of its own elasticity, thereby realizing the retraction of the transmission rod 7.

[0038] In order to interrupt the power supply to the motor 3 and facilitate the retraction of the transmission rod, a limiting block 54 is fixed on the inner surface of the lower housing 2, and the limiting block 54 is engaged in the bottom surface of the transmission gear 5.

[0039] Please refer to Figure 8-9 It is understandable that the limit block 54 is set to prevent transmission disengagement failure, and the setting of the limit block 54 can also limit the rotation of the transmission gear 5 (the rotation range of the transmission gear 5 is as follows). Figure 9 As shown, when the transmission gear 5 rotates to its maximum angle, the side wall of the transmission gear 5 will contact the side wall of the limit block 54, causing it to be unable to continue rotating; however, at this time, the motor 3 is subjected to driving resistance, which causes the current to increase and the temperature to rise. At this time, the thermal relay will activate and automatically cut off the power supply to protect the motor 3.

[0040] When the power supply to motor 3 is cut off, no external force is applied to screw gear 4, transmission gear 5 and rack 6. At this time, the thrust generated by spring 8 will push rack 6 and transmission rod 7 to retract (screw gear 4 and transmission gear 5 rotate in opposite directions), thereby locking the glove box.

[0041] In this embodiment, the automatic power cut-off of motor 3 is achieved through a power-off protection circuit. In addition to the thermal relay, the circuit also includes transistors, sampling resistors, etc. This power-off protection circuit is a common circuit, and will not be described in detail here.

[0042] As a preferred embodiment, the edge of the second meshing tooth 52 is provided with a positioning tooth 53, and the rack 6 is provided with a positioning groove that cooperates with the positioning tooth 53. During production and installation, the positioning tooth 53 can cooperate with the positioning groove to ensure installation accuracy.

[0043] As a preferred embodiment, the spring 8 is a tower-shaped spring, which has good contraction and elasticity, making it easy to push the transmission rod 7 to retract.

[0044] Please refer to Figure 10-11 Based on the above embodiments, the protective cover 9 includes an outer cover 91 and an inner cover 92 integrally formed, which are used to isolate and prevent dust from the transmission rod. The end of the outer cover 91 is sleeved at the connection between the upper shell 1 and the lower shell 2, and the inner cover 92 is sleeved at the end of the transmission rod 7.

[0045] The outer cover 91 and the inner cover 92 are connected by a circular groove and a circular protrusion. In this embodiment, both the outer cover 91 and the inner cover 92 are made of rubber and have a certain elasticity to meet the extension and retraction of the transmission rod 7.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A glove box actuator unlocking mechanism, characterized in that, The device includes an upper housing and a lower housing that cooperate with each other. A drive mechanism and a transmission rod are provided between the upper housing and the lower housing. One end of the transmission rod is connected to the drive mechanism, and the other end extends outward. A protective cover is provided at the extended end of the transmission rod. The transmission rod can reciprocate and extend through the drive mechanism. The drive mechanism includes a transmission gear. A limiting block that cooperates with the transmission gear is provided on the inner wall of the lower housing.

2. The glove box actuator unlocking mechanism according to claim 1, characterized in that, The drive mechanism is driven by a motor, which is connected to the vehicle's power supply via leads.

3. The glove box actuator unlocking mechanism according to claim 1 or 2, characterized in that, The drive mechanism also includes a screw gear and a rack. The screw gear is connected to the motor for transmission. The transmission gear is located between the screw gear and the rack and is connected to both the screw gear and the rack for transmission. The rack is fixedly connected to the transmission rod. When the screw gear rotates, it drives the transmission rod to extend and retract through the transmission gear and the rack.

4. The glove box actuator unlocking mechanism according to claim 3, characterized in that, A spring is circumferentially fitted around the transmission rod. One end of the spring contacts the side wall of the rack, and the other end abuts against the inner wall of the lower housing. The spring contracts under force when the transmission rod extends.

5. The glove box actuator unlocking mechanism according to claim 4, characterized in that, The transmission gear is stepped, with a first meshing tooth on the semicircumference of the lower transmission gear and a second meshing tooth on the semicircumference of the upper transmission gear. The first and second meshing teeth are arranged in opposite directions.

6. The glove box actuator unlocking mechanism according to claim 5, characterized in that, The first meshing tooth engages with the screw gear, and the second meshing tooth engages with the rack.

7. The glove box actuator unlocking mechanism according to claim 1, characterized in that, The limiting block is integrated with the lower housing, and the limiting block is engaged within the bottom surface of the transmission gear.

8. The glove box actuator unlocking mechanism according to claim 5 or 6, characterized in that, The edge of the second meshing tooth is provided with positioning teeth, and the rack is provided with positioning tooth grooves that cooperate with the positioning teeth.

9. The glove box actuator unlocking mechanism according to claim 4, characterized in that, The spring is a tower-shaped spring.

10. The glove box actuator unlocking mechanism according to claim 1, characterized in that, The protective cover includes an outer cover and an inner cover that are integrally formed. The end of the outer cover is fitted onto the connection between the upper and lower housings, and the inner cover is fitted onto the end of the transmission rod.

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