A vehicle unlocking drive device and its application

Abstract

The present invention discloses a vehicle unlocking drive device and its application, the vehicle unlocking drive device comprises a housing, an electric mechanism, a drive mechanism connected to the housing, an output shaft connected to the drive mechanism, the drive mechanism comprises a gear, a transmission gear assembly meshing with the gear, and a vortex spring connected to the transmission gear assembly, the output shaft and the vortex spring are respectively arranged on both sides of the transmission gear assembly, the output pipe is detachably connected to the transmission gear assembly, the drive mechanism also comprises a vortex spring seat, the vortex spring seat is arranged on the housing, and the vortex spring is installed on the vortex spring seat. The vehicle unlocking drive device provided by the present invention has a simple structure, a small volume, convenient installation and manufacturing process, can automatically reset, and can be used alone as a vehicle unlocking drive device, used on various parts of a car, and has a wide range of applications.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle unlocking drivers, and in particular relates to a vehicle unlocking driver device and application thereof. Background Art

[0002] With the development of automobile electrification, customers' demands for the automation and functionality of automobile parts are constantly increasing. The new models on the market now have diversified functions in the car and the actual needs of passengers, which require the maximum use of the limited space of the car. Among them, the folding function of the car seat headrest is attracting more and more attention and choice from customers. At present, the folding function of the seat headrest is mostly applied on medium and large SUVs in the market. It is mainly because the headrest can be folded when the third row of seats is folded down to reduce the space after the seats are folded down.

[0003] Although there are related technologies to deal with such problems, there are still certain defects in these technologies. For example, patent CN217124621 U discloses a car headrest folding device with a pull rope. By setting an unlocking mechanism connected to a pull rope, the folding function of the car headrest can be realized. However, the unlocking of the headrest requires manual operation, which leads to inconvenient operation, the structure of the unlocking mechanism is complex, and the installation and manufacturing process are inconvenient. Moreover, the unlocking mechanism is set in the car headrest and cannot be used alone as an unlocker on other parts of the car, such as the car sunroof, luggage box, fuel filler, door, storage box, hood, etc. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a vehicle unlocking drive device and its application. The vehicle unlocking drive device provided by the present invention has a simple structure, a small size, convenient installation and manufacturing process, can automatically reset, and can be used alone as a vehicle unlocking drive device. It can be used on multiple parts of a car and has a wide range of applications.

[0005] In order to achieve the purpose of the above invention, the technical solution adopted by the present invention is as follows:

[0006] A first aspect of the present invention provides a vehicle unlocking drive device, comprising a housing, an electric mechanism, a drive mechanism connected to the housing, and an output shaft connected to the drive mechanism, the drive mechanism comprising a driving gear, a transmission gear assembly meshing with the driving gear, and a vortex spring connected to the transmission gear assembly, the output shaft and the vortex spring are respectively arranged on both sides of the transmission gear assembly, the output shaft comprises an output seat and an output pipe arranged on the output seat, the output pipe is detachably connected to the transmission gear assembly, the drive mechanism also comprises a vortex spring seat, the vortex spring seat is arranged on the housing, and the vortex spring is installed on the vortex spring seat.

[0007] Unlike the prior art, the vehicle unlocking drive device provided by the present invention only cooperates with the housing, the electric mechanism, the driving gear, the transmission gear assembly and the vortex spring. The electric mechanism drives the driving gear to rotate, which drives the transmission gear assembly to rotate, thereby driving the vortex spring to rotate and store energy, and then drives the output tube of the output shaft to move in the direction of the vortex spring. It has a simple structure, a small size, and convenient installation and manufacturing processes. Through the vortex spring energy storage, when the electric mechanism is powered off, the vortex spring releases its energy, thereby driving the transmission gear assembly to rotate in the opposite direction, and then drives the output tube to move in the direction away from the vortex spring and reset to the initial state. It is easy to operate, has low energy consumption, and can be used alone as a vehicle unlocking drive device. It can be used on multiple components of a car and has a wide range of applications.

[0008] Furthermore, the shell includes a shell and a shell cover fixedly connected to the shell, a plurality of grooves are arranged on the shell, bosses matching with the grooves are arranged around the shell cover, the grooves are snap-connected with the bosses, and the shell and the shell cover can be more tightly connected to meet the higher protection level requirements of the unlocking drive device.

[0009] Furthermore, the electric mechanism includes a motor and a power plug, the driving gear is arranged on the rotating shaft of the motor, so that the motor can drive the driving gear conveniently, and the power plug is pressed onto the motor through the slot of the shell to facilitate powering the motor.

[0010] Furthermore, the transmission gear assembly includes a rotating shaft, a spur gear and a lead screw arranged on the rotating shaft. The hook of the vortex spring is fixedly connected to the core petal of the rotating shaft, so that the vortex spring can rotate with the rotating shaft. The output pipe and the lead screw are connected by threads, and the outer teeth of the gear are meshed with the outer teeth of the spur gear. The motor drives the driving gear to rotate, which drives the spur gear to rotate, so that the rotating shaft drives the vortex spring to rotate and store energy, and then the output pipe moves in the direction of the vortex spring in a spiral manner on the lead screw.

[0011] Furthermore, a thread is provided on the inner cavity surface of the first end of the output tube, the screw rod is connected to the output tube by the thread, and a connecting piece is provided at the second end of the output tube, and the connecting piece is connected to the cable of the object to be unlocked. When the output tube moves toward the direction of the vortex spring, the folding function of the object (here refers to the automobile parts) is realized.

[0012] In the present invention, the first stage of the vehicle unlocking drive device adopts a spur gear to mesh with the driving gear, and the second stage adopts a screw rod and a threaded connection to output, so that the vehicle unlocking drive device runs more smoothly and reliably.

[0013] Furthermore, the shell and the shell cover are both provided with slide grooves, the slide grooves are combined to form a slideway, the output seat is arranged in the shell, and the output pipe can move back and forth on the slideway.

[0014] Furthermore, a hole and a channel are provided on the vortex spring seat, a clamping edge and a support are provided on the inner side of the vortex spring seat, an annular hole is provided on the shell, the first end of the rotating shaft passes through the hole and the annular hole in sequence, the edge of the vortex spring is engaged with the clamping edge, and the support supports the vortex spring, so that the vortex spring is installed on the vortex spring seat, and the shell cover has a protrusion, which passes through the channel, so that the shell cover is connected to the vortex spring seat.

[0015] In the present invention, the vortex spring seat is further optimized in appearance and lightened in weight while ensuring that the vortex spring can be installed.

[0016] Furthermore, an oil storage tank is provided in the housing, and the oil storage tank is provided at the matching position between the housing and the spur gear.

[0017] In the present invention, by arranging the oil storage tank at the matching position of the housing and the spur gear, the contact area between the spur gear and the housing is reduced when the spur gear rotates, and the oil storage function of the oil storage tank can further reduce the friction between the two, making the transmission of the vehicle unlocking drive device more stable and reliable.

[0018] Furthermore, the shell and the shell cover are both provided with arc notches, the arc notches form cylindrical slots, and the motor is arranged in the cylindrical slots.

[0019] In the invention, the motor is arranged in a cylindrical slot to ensure that the motor runs more smoothly.

[0020] Furthermore, at least two positioning pins are arranged at diagonal positions around the shell to ensure the matching accuracy of parts, make the gear transmission system more stable and reliable, and facilitate the relative position fixing of the shell and the shell cover during welding.

[0021] Furthermore, the shell is provided with two mounting holes, and a positioning structure is provided under one of the mounting holes.

[0022] In the present invention, the positioning structure matches the C-port of the mounting sheet metal of the counterpart, and the outer shape structure can be changed according to the shape of the customer's mounting interface, making the installation faster and more convenient.

[0023] A second aspect of the present invention provides an application of the above-mentioned vehicle unlocking drive device, which can be applied to a car seat headrest, a car seat, a sunroof, a luggage box, a fuel filler port, a car door, a storage box, or a hood.

[0024] The vehicle unlocking drive device provided by the present invention can be used alone as an unlocking drive. It can not only be applied to the headrest of a car seat to realize the folding of the headrest, but also can be widely used in cars with different plugs and connectors according to the specific needs of customers, such as car seats, sunroofs, luggage boxes, fuel fillers, doors, storage boxes, engine hoods, etc.

[0025] Compared with the prior art, the present invention has achieved beneficial technical effects:

[0026] (1) The vehicle unlocking drive device provided by the present invention can realize the retraction movement of the output shaft and further realize the folding function of the object (here refers to the automobile parts) only through the cooperation of the housing, the electric mechanism, the driving gear, the transmission gear assembly and the vortex spring. It has a simple structure, a small size, and is convenient for installation and manufacturing process. In addition, the vortex spring stores energy. When the electric mechanism is powered off, the output shaft can automatically reset. It is easy to operate and has low energy consumption.

[0027] (2) The first stage of the vehicle unlocking drive device of the present invention adopts a spur gear to mesh with the driving gear, and the second stage adopts a threaded connection to output, so the operation is more stable and reliable.

[0028] (3) The vehicle unlocking drive device provided by the present invention can be used alone as an unlocking drive. It can not only be applied to the headrest of a car seat to realize the folding of the headrest, but also can be widely used in the car by adopting different plugs and connectors according to the specific needs of customers, such as car seats, sunroofs, luggage boxes, fuel fillers, car doors, storage boxes, engine hoods, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the exploded structure of the vehicle unlocking drive device;

[0030] Figure 2 It is a front view structural diagram of a vortex spring and a rotating shaft of a vehicle unlocking drive device;

[0031] Figure 3 It is a schematic diagram of the overall structure of the vehicle unlocking drive device;

[0032] Figure 4 It is a structural schematic diagram of a housing in a vehicle unlocking drive device;

[0033] Figure 5 It is a schematic diagram of the structure of the output shaft in the vehicle unlocking drive device;

[0034] Figure 6 It is a schematic diagram of the structure of the vortex spring seat in the vehicle unlocking drive device.

[0035] The technical features indicated by the reference numerals are as follows:

[0036] 1. Shell; 11. Shell; 12. Shell cover; 13. Circular arc notch; 14. Slide; 111. Groove; 112. Oil storage tank; 113. Positioning pin; 114. Slot; 115. Mounting hole; 116. Positioning structure; 117. Annular hole; 121. Protrusion;

[0037] 2. Electric mechanism; 21. Motor; 22. Power plug; 221. Rotating shaft of the motor;

[0038] 3. Driving mechanism; 31. Driving gear; 32. Transmission gear assembly; 33. Vortex spring; 34. Vortex spring seat; 321. Rotating shaft; 322. Spur gear; 323. Screw rod; 331. Edge; 332. Hook; 341. Hole; 342. Channel; 343. Card edge; 344. Support platform; 3211. Shaft core petal; 3212. First end of the rotating shaft;

[0039] 4. output shaft; 41. output seat; 42. output pipe; 421. thread; 422. connecting piece. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments, but the scope of protection claimed in the present invention is not limited to the following specific embodiments.

[0041] Example

[0042] like Figure 1-6 As shown, this embodiment provides a vehicle unlocking drive device, which is used on a car seat headrest, including a housing 1, an electric mechanism 2, a driving mechanism 3 connected to the housing 1, and an output shaft 4 connected to the driving mechanism 3. The driving mechanism 3 includes a driving gear 31, a transmission gear assembly 32 meshingly connected to the driving gear 31, and a vortex spring 33 connected to the transmission gear assembly 32. The output shaft 4 and the vortex spring 33 are respectively arranged on both sides of the transmission gear assembly 32. The output shaft 4 and the transmission gear assembly 32 are detachably connected through threads. The electric mechanism 2 drives the driving gear 31 to rotate, drives the transmission gear assembly 32 to rotate, thereby driving the vortex spring 33 to rotate and store energy, and then drives the output shaft 4 to move in the direction of the vortex spring 33 in a spiral manner. When the electric mechanism 2 is powered off, the vortex spring 33 releases its energy, thereby driving the transmission gear assembly 32 to rotate in the opposite direction, and then drives the output shaft 4 to move in the direction away from the vortex spring 33 in a spiral manner, and resets to an initial state.

[0043] The vehicle unlocking drive device provided by the present invention can realize the retraction movement of the output shaft 4 and further realize the folding function of the vehicle headrest only through the cooperation of the housing 1, the electric mechanism 2, the driving gear 31, the transmission gear assembly 32 and the vortex spring 33. It has a simple structure, a small volume, and convenient installation and manufacturing processes. In addition, the vortex spring stores energy. When the electric mechanism 2 is powered off, the output shaft 4 can automatically reset. It is easy to operate and has low energy consumption.

[0044] Specifically, the electric mechanism 2 includes a motor 21, the driving gear 31 is arranged on the rotating shaft 221 of the motor 21, the transmission gear assembly 32 includes a rotating shaft 321, a spur gear 322 and a screw rod 323 arranged on the rotating shaft 321, the hook 332 of the vortex spring 33 is fixedly connected to the shaft core petal 3211 on the rotating shaft 321, so that the vortex spring 33 can rotate with the rotating shaft 321, the output shaft 4 and the screw rod 323 are connected by threads, the outer teeth of the driving gear 31 are meshed with the outer teeth of the spur gear 322, the motor 21 drives the driving gear 31 to rotate, and drives the spur gear 322 to rotate, so that the rotating shaft 321 drives the vortex spring 33 to rotate and store energy, and at the same time drives the output shaft 4 to move in the direction of the vortex spring 33 in a spiral manner on the screw rod 323.

[0045] Specifically, the output shaft 4 includes an output seat 41 and an output tube 42 arranged on the output seat 41, a thread 421 is arranged on the inner cavity surface of the first end of the output tube 42, the screw rod 323 is connected to the output tube 42 through the thread 421, so that the output tube 42 can move in a spiral manner on the screw rod 323 toward the direction of the vortex spring 33, and a connecting piece 422 is arranged at the second end of the output tube 42, and the connecting piece 422 is connected to the connecting head (not shown in the figure), and the connecting head is further connected to the car headrest zipper (not shown in the figure). When the output shaft 4 moves toward the direction of the vortex spring 33, the folding function of the car headrest is realized.

[0046] In the present invention, the first stage of the vehicle unlocking drive device adopts a spur gear 322 to mesh with the driving gear 31, and the second stage adopts a screw rod 323 and a threaded connection to output, so that the vehicle unlocking drive device runs more smoothly and reliably.

[0047] Specifically, the shell 1 includes a shell body 11 and a shell cover 12 fixedly connected to the shell body 11. A plurality of grooves 111 are arranged on the shell body 11. Bosses (not shown in the figure) matching the grooves 111 are arranged around the shell cover 12. The grooves 111 are engaged with the bosses, so that the shell body 11 and the shell cover 12 are tightly connected, meeting the higher protection level requirements of the vehicle unlocking drive device.

[0048] Specifically, the shell 11 and the shell cover 12 are both provided with a slide groove 14 (the slide groove of the shell cover is not shown in the figure), and the slide groove 14 is combined to form a slideway (not shown in the figure), the output seat 41 is arranged in the outer shell 1, and the output pipe 42 can move back and forth on the slideway.

[0049] Specifically, the electric mechanism 2 includes a power plug 22 , and the power plug 22 passes through the slot 114 of the housing 11 and is press-fitted onto the motor 21 , so as to facilitate powering the motor 21 .

[0050] Specifically, the driving mechanism 3 also includes a vortex spring seat 34, which is provided with a hole 341 and a channel 342, and the inner side of the vortex spring seat 34 is provided with a clamping edge 343 and a support 344, and the shell 11 is provided with an annular hole 117, and the first end 3212 of the rotating shaft 321 passes through the hole 341 and the annular hole 117 in sequence, and the edge 331 of the vortex spring 33 is engaged with the clamping edge 343, and the support 344 supports the vortex spring 33, so that the vortex spring 33 is installed on the vortex spring seat 34, and the shell cover 12 has a protrusion 121, and the protrusion 121 passes through the channel 342, so that the shell cover 12 is connected to the vortex spring seat 34.

[0051] In this embodiment, the vortex spring seat 34 is further optimized in appearance and reduced in weight while ensuring that the vortex spring 33 can be installed.

[0052] Specifically, an oil storage tank 112 is provided in the shell 11, and the oil storage tank 112 is arranged at the matching position of the shell 11 and the spur gear 322, so that the contact area between the spur gear 322 and the shell 11 is reduced when the spur gear 322 rotates, and the oil storage function of the oil storage tank 112 can further reduce the friction between the two, so that the transmission of the vehicle unlocking drive device is more stable and reliable.

[0053] Specifically, the shell 11 and the shell cover 12 are both provided with an arc notch 13 (the arc notch in the shell cover is not shown in the figure), forming a cylindrical slot, and the motor 21 is arranged on the cylindrical slot to ensure that the motor 21 runs more smoothly.

[0054] Specifically, at least two positioning pins 113 are designed at the diagonals around the shell 11. In this embodiment, two positioning pins 113 are arranged to ensure the matching accuracy of parts, make the gear transmission system more stable and reliable, and facilitate the relative position fixing of the shell 11 and the shell cover 12 during welding.

[0055] Specifically, the housing 11 is provided with two mounting holes 115, and an auxiliary positioning structure 116 is designed under one of the mounting holes. The positioning structure 116 matches the C-port of the mounting sheet metal of the counterpart (not shown in the figure). The outer shape structure can be changed according to the shape of the customer's mounting interface, making the installation faster and more convenient. The outer shape structure of the positioning structure 116 in this embodiment is Figure 4 The structure shown.

[0056] When in use, the motor 21 is powered through the power plug 22, and the motor 21 drives the driving gear 31 to rotate, thereby driving the spur gear 322 to rotate, and the rotating shaft 321 drives the vortex spring 33 to rotate, and at the same time, the screw rod 323 drives the output tube 42 of the output shaft 4 to move in the direction of the vortex spring 33 on the slideway, and then the connecting piece 422 at the second end of the output tube 42 can be connected to the cable of the car seat headrest through the connecting head, so as to pull the cable of the car seat headrest to achieve the folding function of the car seat headrest, and the vortex spring 33 rotates a certain number of times with the transmission gear assembly 32, and the vortex spring 33 has energy. When the motor 21 is powered off, the vortex spring 33 releases its energy, which can drive the transmission gear assembly 32 to rotate in the opposite direction, and then drive the output shaft 4 to move in the direction away from the vortex spring and reset to the initial state.

[0057] The vehicle unlocking drive device in this embodiment can not only be used on the headrest of the car seat, but also can be used on the car sunroof, luggage box, fuel filler port, car door, storage box, and engine hood by using different plugs and connectors according to the specific needs of customers.

[0058] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the invention.

Claims

1. A vehicle unlocking drive device, comprising a housing (1), an electric mechanism (2), a drive mechanism (3) connected to the housing (1), and an output shaft (4) connected to the drive mechanism (3), characterized in that: The driving mechanism (3) comprises a driving gear (31), a transmission gear assembly (32) meshingly connected to the driving gear (31), and a vortex spring (33) connected to the transmission gear assembly (32); the vortex spring (33) and the output shaft (4) are respectively arranged on both sides of the transmission gear assembly (32); the output shaft (4) comprises an output seat (41) and an output pipe (42) arranged on the output seat (41); the output pipe (42) is detachably connected to the transmission gear assembly (32); the driving mechanism (3) further comprises a vortex spring seat (34); the vortex spring seat (34) is arranged on the housing (1); and the vortex spring (33) is mounted on the vortex spring seat (34); The housing (1) comprises a shell (11) and a shell cover (12) fixedly connected to the shell (11); a groove (111) is provided on the shell (11); bosses matching the groove (111) are provided around the shell cover (12); the groove (111) is snap-fitted and connected to the bosses; The transmission gear assembly (32) comprises a rotating shaft (321), a spur gear (322) and a screw rod (323) arranged on the rotating shaft (321); the hook (332) of the vortex spring (33) is fixedly connected to the shaft core petal (3211) of the rotating shaft (321); the output pipe (42) and the screw rod (323) are connected by threads; and the external teeth of the driving gear (31) are meshed with the external teeth of the spur gear (322); A thread (421) is provided on the inner cavity surface of the first end of the output tube (42), the screw rod (323) is connected to the output tube (42) through the thread (421), a connecting piece (422) is provided at the second end of the output tube (42), the connecting piece (422) is connected to a connecting head, and the connecting head is further connected to a zipper of a car headrest; The vortex spring seat (34) is provided with a hole (341) and a channel (342), and the inner side of the vortex spring seat (34) is provided with a clamping edge (343) and a support platform (344). The shell (11) is provided with an annular hole (117), and the first end (3212) of the rotating shaft (321) passes through the hole (341) and the annular hole (117) in sequence. The edge (331) of the vortex spring (33) is engaged with the clamping edge (343), and the support platform (344) supports the vortex spring (33). The shell cover (12) has a protrusion (121), and the protrusion (121) passes through the channel (342), so that the shell cover (12) is connected to the vortex spring seat (34).

2. A vehicle unlocking drive device according to claim 1, characterized in that: The electric mechanism (2) comprises a motor (21) and a power plug (22); the driving gear (31) is arranged on a rotating shaft (221) of the motor (21); and the power plug (22) passes through a slot (114) of the housing (11) and is press-fitted onto the motor (21).

3. A vehicle unlocking drive device according to claim 2, characterized in that: The housing (11) and the housing cover (12) are both provided with an arc notch (13), the arc notch (13) forming a cylindrical slot, and the motor (21) is arranged in the cylindrical slot.

4. The vehicle unlocking drive device according to claim 1, characterized in that: At least two positioning pins (113) are arranged at diagonal positions around the shell (11).

5. The vehicle unlocking drive device according to claim 1, characterized in that: An oil storage tank (112) is provided in the housing (11), and the oil storage tank (112) is provided at the matching position between the housing (11) and the spur gear (322).

6. An application of a vehicle unlocking drive device as claimed in any one of claims 1 to 5, characterized in that: The vehicle unlocking drive device is applied to a vehicle seat headrest, a sunroof, a luggage box, a fuel filler port, a vehicle door, a storage box, or a hood.

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