CN116044275A

CN116044275A - Electric stay bar and vehicle

Info

Publication number: CN116044275A
Application number: CN202310278150.8A
Authority: CN
Inventors: 刘立群; 汪建涛; 丁桂珍; 陈东
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-05-02

Abstract

The invention discloses an electric stay bar and a vehicle, wherein the electric stay bar comprises: a driving motor; one end of the screw rod is connected with an output shaft of the driving motor; the sleeve is sleeved outside the screw rod and is in threaded fit with the screw rod, and the sleeve can move along the length direction of the screw rod; the first ball socket head is connected with one end of the sleeve, which is far away from the driving motor, and is provided with an induction switch which is suitable for being abutted against one end of the screw rod, which is far away from the driving motor; the second ball head is connected with one end, far away from the output shaft, of the driving motor. According to the electric stay bar, the actual stroke position of the electric stay bar during resetting is accurately controlled, so that the opening and closing device of the vehicle controlled by the electric stay bar is in a completely closed state, and a door lock or an additional switch and other parts are not required to be arranged to control the closing of the opening and closing device of the vehicle, thereby saving space.

Description

Electric stay bar and vehicle

Technical Field

The invention relates to the technical field of automobile parts, in particular to an electric stay bar and a vehicle.

Background

At present, the electric stay bars in the market all control the stroke position of the electric stay bars through Hall signals of a Hall motor, but because the Hall signals always have some deviation in the repeated cyclic reciprocating motion of the motor, the actual stroke position of the electric stay bars cannot be controlled very accurately, and therefore, the accurate control of the position stroke of the electric stay bars can be realized by combining external door lock signals or external signals such as a switch.

However, in practical project development applications, there are many cases where there are no parts such as a door lock or an additional switch disposed on the carrier, so that the position and the travel of the electric stay bar cannot be controlled accurately.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the electric stay bar, the actual stroke position of the electric stay bar can be accurately controlled when the electric stay bar is reset, so that the opening and closing device of the vehicle controlled by the electric stay bar is in a completely closed state, and the closing of the opening and closing device of the vehicle is controlled without arranging a door lock or an additional switch and other parts, thereby saving space.

The invention further provides a vehicle which comprises the electric stay bar.

According to an embodiment of the present invention, an electric stay includes: a driving motor; one end of the screw rod is connected with the output shaft of the driving motor; the sleeve is sleeved outside the screw rod and is in threaded fit with the screw rod, and the sleeve can move along the length direction of the screw rod; the first ball socket head is connected with one end of the sleeve, which is far away from the driving motor, and is provided with an induction switch which is suitable for stopping with one end of the screw rod, which is far away from the driving motor; and the second ball head is connected with one end, far away from the output shaft, of the driving motor.

According to the electric stay bar disclosed by the embodiment of the invention, the driving motor is arranged, the screw rod is arranged at one end of the output shaft of the driving motor, the sleeve is sleeved outside the screw rod and is in threaded fit with the screw rod, the sleeve can move along the length direction of the screw rod, the first ball socket head is arranged at one end of the sleeve, which is far away from the driving motor, and the induction switch is arranged on the first ball socket head, so that the driving motor stops working when the induction switch is abutted against one end of the screw rod, which is far away from the driving motor, thereby realizing accurate control of the actual stroke position of the electric stay bar during resetting, further enabling an opening and closing device of a vehicle controlled by the electric stay bar to be in a complete closing state, and needing not to be provided with a door lock or an additional switch or other parts to control closing of the opening and closing device of the vehicle, so that space is saved.

In some embodiments of the present invention, the electric stay further includes a reduction gearbox, an input shaft of the reduction gearbox is connected to an output shaft of the driving motor, and an output shaft of the reduction gearbox is connected to an end of the screw rod, which is far away from the first ball socket head.

In some embodiments of the invention, a side of the first ball head facing the screw rod is provided with a mounting part, and the inductive switch is arranged in the mounting part.

In some embodiments of the present invention, a fixed piston is disposed in the mounting portion, a receiving groove is formed on a side of the fixed piston facing the screw rod, and the inductive switch is disposed in the receiving groove.

In some embodiments of the present invention, the inductive switch is clamped in the accommodating groove, and a through hole for passing a wire harness of the inductive switch is formed in the bottom wall of the accommodating groove.

In some embodiments of the invention, the mounting portion has a first resilient member therein, the first resilient member being located between the fixed piston and a bottom wall of the mounting portion to drive movement of the fixed piston toward an opening of the mounting portion.

In some embodiments of the present invention, a limiting groove, a guiding groove and an annular groove extending along a circumferential direction of the mounting portion are provided on an inner side wall of the mounting portion, the guiding groove and the limiting groove are located on one side of the annular groove facing the opening of the mounting portion and are communicated with the annular groove, the limiting groove and the guiding groove are arranged at intervals in the circumferential direction of the mounting portion, one end of the guiding groove away from the annular groove extends to an opening of the mounting portion, a limiting protrusion is provided on an outer peripheral wall of the fixed piston, the limiting protrusion is suitable for entering the annular groove along the guiding groove and entering the limiting groove after rotating in the annular groove, and a side wall of the limiting groove close to the opening of the mounting portion is configured into a limiting structure.

In some embodiments of the present invention, an end of the first ball head facing the screw rod is provided with a connecting protrusion, the connecting protrusion extends into the sleeve and is in threaded connection with the sleeve through the sleeve, and the mounting part is arranged on the connecting protrusion.

In some embodiments of the present invention, the electric brace further includes a second elastic member, the second elastic member is sleeved outside the sleeve, an end of the second elastic member, which is close to the driving motor, is fixed relative to the driving motor, and an end of the second elastic member, which is far away from the driving motor, is abutted against the first ball head to support the first ball head.

In some embodiments of the present invention, the electric stay further includes an inner tube, the inner tube is sleeved outside the sleeve, the second elastic member is sleeved outside the inner tube, one end of the inner tube is fixed relative to the driving motor, and one end of the second elastic member, which is far away from the first ball socket head, is fixedly connected or stopped with the inner tube.

In some embodiments of the present invention, the electric brace further includes an outer tube, the outer tube is sleeved outside the second elastic member, and one end of the outer tube is connected with the first ball joint.

In some embodiments of the invention, the drive motor has a power cord that is sheathed.

In some embodiments of the invention, the electric stay further comprises an outer motor protection tube, wherein the outer motor protection tube is sleeved outside the driving motor, and one end of the outer motor protection tube is connected with the second ball joint.

In some embodiments of the invention, the electric brace further comprises a brace outer sheath tube, which is sleeved outside the sleeve tube and has one end connected to an end of the motor outer sheath tube remote from the second ball head.

According to an embodiment of the present invention, a vehicle includes: a body having a luggage compartment; the cover plate is rotatably arranged on the vehicle body to open or close the luggage compartment; foretell electronic vaulting pole, first ball head with the apron rotates to be connected, the second ball head with the automobile body rotates to be connected.

According to the vehicle provided by the embodiment of the invention, the driving motor is arranged by arranging the electric stay bar, the screw rod is arranged at one end of the output shaft of the driving motor, the sleeve is sleeved outside the screw rod and is in threaded fit with the screw rod, the sleeve is movable along the length direction of the screw rod, the first ball socket head is arranged at one end of the sleeve, which is far away from the driving motor, and the induction switch is arranged on the first ball socket head, when the induction switch is abutted against one end of the screw rod, which is far away from the driving motor, the driving motor stops working, so that the actual stroke position of the electric stay bar during resetting is accurately controlled, the opening and closing device of the vehicle controlled by the electric stay bar is in a completely closed state, and the closing of the opening and closing device of the vehicle is controlled without arranging a door lock or an additional switch and other parts, so that space is saved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an exploded view of an electric strut according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an electric strut according to an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of an electric strut according to an embodiment of the present invention;

FIG. 4 is a schematic view of a first ball head of a power stay according to an embodiment of the invention;

FIG. 5 is a schematic view of a first ball head of an electric strut according to an embodiment of the present invention, wherein the inductive switch, the stationary piston and the first resilient member are not shown;

FIG. 6 is a schematic illustration of a stationary piston and inductive switch of a first ball head of an electric strut according to an embodiment of the present invention;

FIG. 7 is a schematic illustration of a stationary piston of a first ball head of an electric strut according to an embodiment of the present invention, wherein the inductive switch is not shown;

FIG. 8 is a schematic view of a sense switch of a first ball head of a power strut according to an embodiment of the present invention;

FIG. 9 is a schematic view of a first resilient member of a first ball segment of a power strut according to an embodiment of the present invention;

FIG. 10 is a schematic view of a mounting portion of a first ball head of a power stay according to an embodiment of the invention.

Reference numerals:

10. an electric stay bar;

1. a first ball head; 11. a fixed piston; 111. a receiving groove; 1111. a through hole; 112. a limit protrusion; 12. an inductive switch; 121. a switch plug; 13. a first elastic member; 14. a connection protrusion; 141. a mounting part; 1411. a limit groove; 1412. a guide groove; 1413. an annular groove;

2. a driving motor; 21. a power line; 22. a power plug; 23. a sheath;

3. a screw rod;

4. a sleeve; 41. a sleeve thread; 42. an external spline;

5. a second ball head;

6. a reduction gearbox;

7. an inner tube;

8. a second elastic member;

9. an outer protective tube of the motor;

101. a stay bar outer protective tube;

102. an outer tube; 1021. an annular connection.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

An electric stay 10 according to an embodiment of the present invention is described below with reference to fig. 1 to 10.

As shown in fig. 1, an electric stay 10 according to an embodiment of the present invention includes a driving motor 2, a screw 3, a sleeve 4, and a first ball head 1.

Specifically, referring to fig. 1, one end of a screw rod 3 is connected with an output shaft of a driving motor 2, a sleeve 4 is sleeved outside the screw rod 3 and is in threaded fit with the screw rod 3, and the sleeve 4 is movable along the length direction of the screw rod 3. It will be appreciated that the output shaft of the driving motor 2 drives the screw rod 3 to rotate, and the sleeve 4 is limited by being connected with other parts of the electric stay 10, so that the sleeve 4 is circumferentially fixed, and the sleeve 4 can move along the length direction of the screw rod 3.

Further, the first ball head 1 is fixedly connected with one end, away from the driving motor 2, of the sleeve 4, therefore, the sleeve 4 can drive the first ball head 1 to move close to or away from the screw 3 along the length direction of the screw 3, and when the first ball head 1 is connected with an opening and closing device of a vehicle, the opening and closing device can be driven by the electric stay bar 10 to be opened and closed.

Further, the first ball socket head 1 is provided with an inductive switch 12 suitable for being abutted against one end, far away from the driving motor 2, of the screw rod 3, and when the inductive switch 12 is abutted against one end, far away from the driving motor 2, of the screw rod 3, the opening and closing device of the vehicle controlled by the electric stay rod 10 is in a complete closing state, and meanwhile, the driving motor 2 is controlled to stop working.

Therefore, when the driving motor 2 controls the screw rod 3 to rotate along the direction that the driving sleeve 4 approaches the driving motor 2 according to the inherent control parameters, the first ball socket head 1 moves along the length direction of the screw rod 3 to approach the screw rod 3, when the first ball socket head 1 moves to the stop position of the sensing switch 12 and one end of the screw rod 3 far away from the driving motor 2, the driving motor 2 receives a stop signal from the sensing switch 12, and the driving motor 2 stops working, so that the actual stroke position of the electric brace 10 during resetting is accurately controlled, the opening and closing device of the vehicle controlled by the electric brace 10 is in a completely closed state, and a door lock or an additional switch and other parts are not required to be arranged to control the closing and closing device of the vehicle, so that space is saved.

According to the electric stay bar 10 provided by the embodiment of the invention, the driving motor 2 is arranged, the screw rod 3 is arranged at one end of the output shaft of the driving motor 2, the sleeve 4 is sleeved outside the screw rod 3 and is in threaded fit with the screw rod 3, the sleeve 4 is movable along the length direction of the screw rod 3, the first ball socket head 1 is arranged at one end of the sleeve 4, which is far away from the driving motor 2, the induction switch 12 is arranged on the first ball socket head 1, and when the induction switch 12 abuts against one end of the screw rod 3, which is far away from the driving motor 2, the driving motor 2 stops working, so that the actual stroke position of the electric stay bar 10 during resetting is accurately controlled, the opening and closing device of a vehicle controlled by the electric stay bar 10 is in a completely closed state, and the closing of the opening and closing device of the vehicle is controlled without the need of a door lock or an additional switch and other parts, so that space is saved.

In some embodiments of the present invention, as shown in fig. 1, the electric brace 10 further includes a reduction gearbox 6, an input shaft of the reduction gearbox 6 is connected to an output shaft of the driving motor 2, and an output shaft of the reduction gearbox 6 is connected to an end of the screw rod 3 away from the first socket head 1. The reduction gearbox 6 is used for reducing the rotation speed of the driving motor 2 and increasing the torque, so that the rotation speed of the screw rod 3 is reduced, and higher torque is obtained, and sufficient supporting force can be provided for the first ball socket head 1, so that the electric stay 10 can have sufficient supporting force to support the opening and closing device of the vehicle.

In some embodiments of the invention, as shown in fig. 4 and 5, the side of the first ball head 1 facing the screw 3 has a mounting portion 141, and the inductive switch 12 is provided in the mounting portion 141. Thereby, the inductive switch 12 is placed in the first ball head 1, so that the inductive switch 12 is protected.

In some embodiments of the present invention, as shown in fig. 4 and 7, a fixed piston 11 is provided in the mounting portion 141, and a receiving groove 111 is provided at a side of the fixed piston 11 facing the screw 3, and the induction switch 12 is provided in the receiving groove 111. Because the shape of the mounting portion 141 is not easy to change after being manufactured, in order to facilitate the disassembly and replacement of the inductive switch 12, the fixed piston 11 is provided for loading the inductive switch 12, and meanwhile, if the inductive switch 12 with different model sizes needs to be installed, the mounting portion can be realized by replacing the fixed piston 11 of the accommodating groove 111 with different sizes, and the shape of the mounting portion 141 is not required to be changed.

In some embodiments of the present invention, as shown in fig. 6, 7 and 8, the inductive switch 12 is snapped into the receiving groove 111 such that the inductive switch 12 is fixed in the receiving groove 111, preventing the inductive switch 12 from being detached from the receiving groove 111. Further, a through hole 1111 through which the wire harness of the induction switch 12 passes is provided on the bottom wall of the accommodation groove 111, whereby the wire harness of the induction switch 12 can be connected with the switch plug 121 through the through hole 1111, thereby ensuring the normal operation of the induction switch 12.

In some embodiments of the present invention, as shown in fig. 5, a limiting structure for limiting the movement of the fixed piston 11 toward the opening of the mounting portion 141 is provided on the inner side wall of the mounting portion 141, thereby preventing the fixed piston 11 from sliding out of the mounting portion 141.

Further, as shown in fig. 3 and 9, the mounting portion 141 has a first elastic member 13 therein, and the first elastic member 13 is located between the fixed piston 11 and the bottom wall of the mounting portion 141 to drive the fixed piston 11 to move toward the opening of the mounting portion 141. It will be appreciated that when the screw 3 and the inductive switch 12 are in contact, the first elastic member 13 may play a role of buffering, preventing the inductive switch 12 from being damaged under the action of an excessive impact force, and at the same time, when the screw 3 and the inductive switch 12 are abutted, the first elastic member 13 may cause the inductive switch 12 to have a tendency to move toward the opening of the mounting portion 141, that is, a tendency to move toward the screw 3 (the opening of the mounting portion 141 faces the screw 3), so that the screw 3 and the inductive switch 12 are firmly abutted.

In some embodiments of the present invention, as shown in fig. 5 and 6, a limiting groove 1411, a guide groove 1412 and an annular groove 1413 extending in a circumferential direction of the mounting portion 141 are provided on an inner side wall of the mounting portion 141, the guide groove 1412 and the limiting groove 1411 are located at a side of the annular groove 1413 which is open toward the mounting portion 141 and communicate with the annular groove 1413, the limiting groove 1411 and the guide groove 1412 are spaced apart in the circumferential direction of the mounting portion 141, one end of the guide groove 1412 away from the annular groove 1413 extends to the opening of the mounting portion 141, a limiting protrusion 112 is provided on an outer circumferential wall of the stationary piston 11, the limiting protrusion 112 is adapted to enter the annular groove 1413 along the guide groove 1412 and enter the limiting groove 1411 after rotating in the annular groove 1413, and a side wall of the limiting groove 1411 which is close to the opening of the mounting portion 141 is configured as a limiting structure.

It will be appreciated that the fixed piston 11 enters the mounting portion 141 through the engagement of the limit projection 112 with the guide groove 1412, and the annular groove 1413 is used to connect the guide groove 1412 and the limit groove 1411, so that the limit projection 112 of the fixed piston 11 enters the limit groove 1411 through the annular groove 1413, and the side wall of the limit groove 1411, which is close to the opening of the mounting portion 141, is configured as a limit structure, so that the fixed piston 11 is restricted from sliding out of the mounting portion 141 through the engagement of the limit projection 112 and the limit structure.

In addition, as shown in fig. 10, the plurality of stopper protrusions 112 are provided, the plurality of guide grooves 1412 and stopper grooves 1411 are provided correspondingly, and the plurality of stopper grooves 1411 and the plurality of stopper protrusions 112 cooperate to more easily restrict the sliding out of the fixing piston 11 from the mounting portion 141. In the example shown in fig. 10, the number of the stopper protrusions 112 is two, the number of the guide grooves 1412 and the number of the stopper grooves 1411 are two, the two guide grooves 1412 are disposed opposite to each other, and the two stopper grooves 1411 are also disposed opposite to each other. And the connection line of the two guide grooves 1412 is perpendicular to the connection line of the two limit grooves 1411, which means that, after the fixed piston 11 enters the annular groove 1413 along the guide grooves 1412, the fixed piston 11 is rotated by 90 ° only, so that the limit protrusion 112 and the limit groove 1411 cooperate, and the fixed piston 11 is limited in the mounting portion 141. However, the present invention is not limited thereto, and the limit protrusion 112 may be more, and the guide groove 1412 and the limit groove 1411 may be correspondingly more, such as 3, 4, 5, or 6, etc.

In some embodiments of the present invention, as shown in fig. 3 and 4, the end of the first ball head 1 facing the screw rod 3 has a coupling protrusion 14, the coupling protrusion 14 extends into the sleeve 4 and is coupled with the sleeve thread 41, and the mounting portion 141 is provided on the coupling protrusion 14. Thereby, the connection reliability of the first ball head 1 and the sleeve 4 is improved. Meanwhile, since the mounting portion 141 is provided on the connection protrusion 14 and the connection protrusion 14 is protruded into the sleeve 4, and the sensing switch 12 is provided on the mounting portion 141, the sensing switch 12 is more easily contacted with the screw 3. In the present invention, the connection between the connection boss 14 and the sleeve 4 is not limited to the threaded connection, and may be made by a pin, a stopper, or the like.

In some embodiments of the present invention, as shown in fig. 1, 2 and 3, the electric brace 10 further includes a second elastic member 8, where the second elastic member 8 is sleeved outside the sleeve 4, an end of the second elastic member 8, which is close to the driving motor 2, is fixed relative to the driving motor 2, and an end of the second elastic member 8, which is far away from the driving motor 2, is abutted against the first socket head 1 to support the first socket head 1.

Wherein, the second elastic member 8 is in the shrinkage state all the time, the one end of the second elastic member 8 near the driving motor 2 can be connected and fixed with the reduction gearbox 6, thereby realizing that the one end of the second elastic member 8 near the driving motor 2 is fixed relative to the driving motor 2, when the reduction gearbox 6 is not assembled, the one end of the second elastic member 8 near the driving motor 2 can be connected with the driving motor 2, thereby realizing that the one end of the second elastic member 8 near the driving motor 2 is fixed relative to the driving motor 2.

It will be appreciated that, since the second elastic member 8 is always in a compressed state, the second elastic member 8 always has a tendency to elongate, thereby achieving abutment with the first ball head 1 to support the first ball head 1, thereby reducing the load of the drive motor 2 and improving the service life of the drive motor 2.

In some embodiments of the present invention, as shown in fig. 1, 2 and 3, the electric stay 10 further includes an inner tube 7, the inner tube 7 is sleeved outside the sleeve 4, the second elastic member 8 is sleeved outside the inner tube 7, one end of the inner tube 7 is fixed relative to the driving motor 2, and one end of the second elastic member 8, which is far away from the first ball socket head 1, is fixedly connected or stopped against the inner tube 7. Wherein, the one end of inner tube 7 near driving motor 2 is connected with reducing gear box 6 to realize that inner tube 7 is fixed for driving motor 2, when not assembling reducing gear box 6, the one end of inner tube 7 near driving motor 2 also can be connected with driving motor 2, thereby realizes that inner tube 7 is fixed for driving motor 2.

It will be appreciated that the inner tube 7 serves to block the second resilient member 8 and the sleeve 4, preventing the second resilient member 8 from affecting the sleeve 4. While the inner tube 7 serves as a base and guide for the second elastic member 8 so that the second elastic member 8 can be contracted and extended along the length direction of the inner tube 7.

Further, as shown in fig. 1, one end of the sleeve 4 near the driving motor 2 is provided with an external spline 42, the inner wall of the inner tube 7 is provided with an internal spline (not shown) matched with the external spline, the internal spline extends along the length direction of the inner tube 7, and meanwhile, the sleeve 4 is kept circumferentially fixed through the matching of the external spline 42 on the sleeve 4 and the internal spline on the inner wall of the inner tube 7 due to the fact that the inner tube 7 is fixed relative to the driving motor 2, when the screw rod 3 rotates, the sleeve 4 does not rotate along with the screw rod 3, and therefore the sleeve 4 moves along the length direction of the inner tube 7.

In some embodiments of the present invention, as shown in fig. 1 and 3, the electric brace 10 further includes an outer tube 102, where the outer tube 102 is sleeved outside the second elastic member 8, and one end of the outer tube 102 is connected to the first ball socket head 1.

It will be appreciated that the outer tube 102 is provided for protecting the second elastic member 8, one end of the outer tube 102 adjacent to the first ball head 1 has an annular connecting portion 1021, the radially outer end of the annular connecting portion 1021 is connected to the inner peripheral wall of the outer tube 102, one side of the annular connecting portion 1021 adjacent to the first ball head 1 is provided for connection to the first ball head 1, and the side of the annular connecting portion 1021 remote from the first ball head 1 is provided for abutment or connection to the second elastic member 8. Thereby limiting the elongation of the second elastic member 8 so that the second elastic member 8 is always in a compressed state, providing a supporting force for the first ball head 1.

Further, because one end of the outer tube 102 is connected with the first ball socket head 1, the other end is unconstrained, so that the first ball socket head 1 can drive the outer tube 102 to move along the length direction of the screw rod 3, when the first ball socket head 1 moves away from the driving motor 2 along the length direction of the screw rod 3, the second elastic piece 8 stretches (but still is in a compressed state), and provides power for the outer tube 102 to move away from the driving motor 2 along the length direction of the screw rod 3, thereby realizing the assistance for the first ball socket head 1 to move away from the screw rod 3 along the length direction of the screw rod 3, reducing the load of the driving motor 2 and prolonging the service life. When the first ball head 1 moves along the length direction of the screw rod 3 near the screw rod 3, the first ball head 1 drives the outer tube 102 to move along the length direction of the screw rod 3 near the driving motor 2, so that the second elastic piece 8 is compressed, the second elastic piece 8 returns to the compressed state, and the preparation is made for providing assistance for the next movement of the first ball head 1.

In some embodiments of the present invention, as shown in fig. 1, the driving motor 2 has a power line 21, and the power line 21 is used to supply power to the driving motor 2, so as to ensure the operation of the driving motor 2. The power line 21 is sleeved with a sheath 23, and the sheath 23 is used for isolating the power line 21 from the outside, so that the power line 21 is protected, and meanwhile, the power line is insulated and prevented from electric leakage.

In some embodiments of the present invention, as shown in fig. 1 and 2, the electric brace 10 further includes a motor outer protection tube 9, where the motor outer protection tube 9 is sleeved outside the driving motor 2 and one end is connected to the second ball socket head 5. Therefore, the motor outer protection tube 9 can protect the internal structure, and the second ball joint 5 can seal one end of the motor outer protection tube 9, so that the structure in the motor outer protection tube 9, such as the driving motor 2, is further protected.

In some embodiments of the present invention, as shown in fig. 1 and 2, the electric brace 10 further includes a brace outer protection tube 101, wherein the brace outer protection tube 101 is sleeved outside the outer tube 102 and one end is connected to the end of the motor outer protection tube 9 away from the second ball socket head 5. The outer protection tube 101 of the stay bar is used for protecting internal structures such as the sleeve 4 and the like, and one end of the outer protection tube 101 of the stay bar is connected with one end of the outer protection tube 9 of the motor, which is far away from the second ball socket head 5, so that the structure in the outer protection tube 101 of the stay bar and the structure of the outer protection tube 9 of the motor form a whole, the integrity of the electric stay bar 10 is improved, the tightness of the electric stay bar 10 is improved, and the service life of the electric stay bar 10 is prolonged.

In addition, the positional relationship among the stay outer tube 101, the second elastic member 8, the outer tube 102, and the inner tube 7 is: the outer tube 102 is sleeved outside the outer tube 102, the outer tube 102 is movable along the length direction of the outer tube 101, the outer tube 102 is sleeved outside the second elastic piece 8, and the second elastic piece 8 is sleeved outside the inner tube 7.

A vehicle according to an embodiment of the present invention is described below.

A vehicle according to an embodiment of the present invention includes a vehicle body having a luggage compartment, a cover plate rotatably provided on the vehicle body to open or close the luggage compartment, and the above-described electric stay 10. The first ball head 1 is rotatably connected with the cover plate, the second ball head 5 is rotatably connected with the vehicle body, and the electric stay 10 can be used for supporting the cover plate when the cover plate is opened to the luggage compartment. The opening and closing device of the vehicle may be a cover plate of a luggage compartment.

It will be appreciated that the second ball head 5 is fixed to the vehicle body, the first ball head 1 may drive the cover plate to open or close the luggage compartment, when the first ball head 1 moves away from the screw 3 along the length direction of the screw 3, the cover plate is driven to open the luggage compartment, and when the first ball head 1 moves close to the screw 3 along the length direction of the screw 3, the cover plate is driven to close the luggage compartment, so that the electric stay 10 controls the cover plate to open or close the luggage compartment.

In addition, the electric stay 10 in the present invention is not limited to driving the cover plate to open or close the trunk, and the electric stay 10 may be used to drive the door to open or close, etc.

According to the vehicle provided by the embodiment of the invention, the screw rod 3 is arranged at one end of the output shaft of the driving motor 2 through the arrangement of the electric stay bar 10, the sleeve 4 is sleeved outside the screw rod 3 and is in threaded fit with the screw rod 3, the sleeve 4 is movable along the length direction of the screw rod 3, the first ball socket head 1 is arranged at one end of the sleeve 4, which is far away from the driving motor 2, the induction switch 12 is arranged on the first ball socket head 1, and when the induction switch 12 abuts against one end, which is far away from the driving motor 2, of the screw rod 3, the driving motor 2 stops working, so that the actual stroke position of the electric stay bar 10 during resetting is accurately controlled, the opening and closing device of the vehicle controlled by the electric stay bar 10 is in a completely closed state, and the closing of the opening and closing device of the vehicle is controlled without the arrangement of a door lock or additional switches and other parts, so that space is saved.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric brace, comprising:

a driving motor;

one end of the screw rod is connected with the output shaft of the driving motor;

the sleeve is sleeved outside the screw rod and is in threaded fit with the screw rod, and the sleeve can move along the length direction of the screw rod;

the first ball socket head is connected with one end of the sleeve, which is far away from the driving motor, and is provided with an induction switch which is suitable for stopping with one end of the screw rod, which is far away from the driving motor;

and the second ball head is connected with one end, far away from the output shaft, of the driving motor.

2. The electric strut of claim 1, further comprising:

the input shaft of the reduction box is connected with the output shaft of the driving motor, and the output shaft of the reduction box is connected with one end, far away from the first ball socket head, of the screw rod.

3. The motorized strut of claim 1, wherein a side of the first ball head facing the lead screw has a mounting portion, the inductive switch being disposed within the mounting portion.

4. The electric stay bar according to claim 3, wherein a fixed piston is arranged in the mounting portion, a receiving groove is formed in one side of the fixed piston facing the screw rod, and the inductive switch is arranged in the receiving groove.

5. The electric pole of claim 4, wherein the inductive switch is snapped into the receiving slot, and the bottom wall of the receiving slot has a through-hole for the passage of the wire harness of the inductive switch.

6. The power strut of claim 4, wherein the mounting section has a first resilient member therein, the first resilient member being located between the stationary piston and the bottom wall of the mounting section, the first resilient member being adapted to drive movement of the stationary piston toward the opening of the mounting section.

7. The electric stay according to claim 6, wherein the mounting portion is provided on an inner side wall thereof with a stopper groove, a guide groove and an annular groove extending in a circumferential direction of the mounting portion, the guide groove and the stopper groove being located at a side of the annular groove facing the opening of the mounting portion and communicating with the annular groove, the stopper groove and the guide groove being disposed at an interval in the circumferential direction of the mounting portion, an end of the guide groove away from the annular groove extending to the opening of the mounting portion, the outer circumferential wall of the stationary piston being provided with a stopper protrusion adapted to enter the annular groove along the guide groove and enter the stopper groove after rotating in the annular groove, a side wall of the stopper groove adjacent to the opening of the mounting portion being configured as a stopper structure.

8. The electric stay bar according to claim 3, wherein an end of the first ball head facing the screw rod is provided with a connecting protrusion, the connecting protrusion extends into the sleeve and is in threaded connection with the sleeve, and the mounting portion is arranged on the connecting protrusion.

9. The electric strut of claim 1, further comprising:

the second elastic piece is sleeved outside the sleeve, one end, close to the driving motor, of the second elastic piece is fixed relative to the driving motor, and one end, far away from the driving motor, of the second elastic piece is abutted to the first ball socket head to support the first ball socket head.

10. The electric strut of claim 9, further comprising:

the inner tube, the inner tube cover is located outside the sleeve pipe, the second elastic component cover is located outside the inner tube, the one end of inner tube is relative driving motor is fixed, the one end of keeping away from of second elastic component first ball socket head with inner tube fixed connection or end are held against.

11. The electric strut of claim 9, further comprising:

and the outer tube is sleeved outside the second elastic piece, and one end of the outer tube is connected with the first ball joint.

12. The motorized strut of claim 1, wherein the drive motor has a power cord, the power cord being sheathed.

13. The electric strut of claim 1, further comprising:

the motor outer protection tube is sleeved outside the driving motor, and one end of the motor outer protection tube is connected with the second ball joint.

14. The electric strut of claim 13, further comprising:

the outer protection tube of vaulting pole, the outer protection tube of vaulting pole is sleeved outside the sleeve pipe and one end is connected with the outer protection tube of motor's one end that keeps away from the second ball head.

15. A vehicle, characterized by comprising:

a body having a luggage compartment;

the cover plate is rotatably arranged on the vehicle body to open or close the luggage compartment;

the power strut of any one of claims 1-14, the first ball head being rotatably connected to the cover plate and the second ball head being rotatably connected to the body.