Car electric tailgate support rod

Abstract

The present application relates to the technical field of automobile parts, and provides an automobile electric tailgate support rod, including a support rod main body and a support rod sub-body, wherein one end of the telescopic support rod main body is arranged on the automobile body, and the support rod main body includes a first magnet; one end of the support rod sub-body is arranged on the automobile tailgate, and the support rod sub-body includes a second magnet; wherein the same magnetic poles of the first magnet and the second magnet are arranged at intervals relative to each other, so that the support rod main body can support the automobile tailgate through the repulsive force between the magnets; if an obstacle prevents the automobile tailgate from closing during the contraction of the support rod main body, the support rod main body will not generate traction on the support rod sub-body and the automobile tailgate, and will not clamp the obstacle. The automobile electric tailgate support rod provided by the present application effectively improves the reliability of the automobile tailgate support rod and improves the safety of the automobile tailgate support rod.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to an automobile electric tailgate support rod. Background Art

[0002] The car electric tailgate support rod is a device that assists the driver to open or close the car tailgate in an electrically powered manner.

[0003] In the related art, the electric tailgate support rod of the automobile usually adopts electronic control components such as sensors to assist in realizing the anti-pinch function. However, when the electronic control system fails due to a malfunction, the sensor cannot work normally, causing the anti-pinch function of the electric tailgate to fail and injure the user. Summary of the invention

[0004] The embodiment of the present application provides a vehicle electric tailgate support rod, which can improve the technical problem in the related art that when the electronic control system fails, the sensor cannot work normally, resulting in the failure of the anti-pinch function of the electric tailgate and the user being pinched.

[0005] The embodiment of the present application provides a vehicle electric tailgate support rod, comprising:

[0006] A support rod body, one end of which is used to be arranged on the vehicle body, the support rod body is retractable, and the support rod body includes a first magnet; and

[0007] A support rod sub-body, one end of which is used to be arranged on the tailgate of the car, and the support rod sub-body includes a second magnet;

[0008] Wherein, the first magnet and the second magnet are arranged relative to each other with a spacing therebetween, and the same magnetic poles of the first magnet and the second magnet are opposite to each other, so that the support rod body can support the automobile tailgate through the repulsive force of the first magnet on the second magnet; if an obstacle prevents the automobile tailgate from moving toward the automobile body during the contraction of the support rod body, the support rod body will not generate traction force on the support rod sub-body and the automobile tailgate, and will not clamp the obstacle.

[0009] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0010] The electric tailgate support rod of the automobile provided in the embodiment of the present application can be provided by arranging a retractable support rod main body on the automobile body, and arranging a first magnet at one end of the support rod main body facing the automobile tailgate, and arranging a support rod sub-body on the automobile tailgate, and arranging a second magnet at one end of the support rod sub-body facing the automobile body. By arranging the same magnetic poles of the first magnet and the second magnet relative to each other, mutual repulsion can be generated between the first magnet and the second magnet. When the automobile tailgate needs to be opened, the support rod main body is extended, and the automobile tailgate is lifted up by the repulsive force of the first magnet on the second magnet; when the automobile tailgate needs to be closed, the support rod main body is retracted, and the automobile tailgate is closed under the action of gravity as the support rod main body is retracted; when there is an obstacle preventing the automobile tailgate from closing, since the support rod main body does not produce a traction effect on the automobile tailgate, the automobile tailgate will not clamp the obstacle with great force, causing damage to the obstacle or the automobile tailgate. In this way, even when the extension and retraction of the support rod body cannot be controlled due to a failure of the electronic control system, the tailgate of the car will not strongly clamp the obstacle that prevents the tailgate from closing, thereby effectively improving the reliability of the tailgate support rod of the car, improving the safety of the tailgate support rod of the car, avoiding losses caused by damage to people or objects, reducing maintenance costs, and improving the user experience.

[0011] In some embodiments, the support rod body comprises:

[0012] A mounting portion, the mounting portion being used to be connected to the vehicle body;

[0013] A shell, one end of which is connected to the mounting portion; the shell has an internal space;

[0014] a driving member, the driving member being disposed in the inner space at one end close to the mounting portion; and

[0015] A movable part, which can be movably arranged in the internal space along the depth direction of the internal space; the first end of the movable part is connected to the power output end of the driving part, and the second end of the movable part is connected to the first magnet; the movable part can be driven by the driving part to move relative to the shell along the depth direction of the internal space to protrude from the shell, thereby allowing the first magnet to lift the car tailgate through the repulsive force on the second magnet.

[0016] In some embodiments, the support rod body further comprises:

[0017] A clutch portion, the clutch portion being disposed at a first end of the movable member;

[0018] A clutch mating part, the clutch mating part is arranged at one end of the power output end of the driving member close to the movable member; the clutch mating part can be connected with the clutch part and transmit power; and

[0019] A clutch member, one end of which is arranged at the first end of the movable member, and the other end of which is arranged at the power output end of the driving member; the clutch member is used to lift up the movable member when the tailgate of the automobile does not fall down following the retraction of the support rod body, so as to disconnect the clutch part from the clutch matching part, thereby disconnecting the first end of the movable member from the power output end of the driving member.

[0020] In some embodiments, the movable member further comprises:

[0021] A transmission rod, the transmission rod is rotatably arranged in the internal space along its own axis; the outer wall of the transmission rod is provided with an external thread; and

[0022] A sleeve, the sleeve is arranged in the internal space; the sleeve is sleeved on the transmission rod, the inner wall of the sleeve is provided with an internal thread, and the internal thread of the inner wall of the sleeve can be threadedly matched with the external thread of the outer wall of the transmission rod, so that the sleeve moves along the axial direction of the transmission rod as the transmission rod rotates;

[0023] Wherein, the clutch member is arranged at one end of the transmission rod close to the driving member.

[0024] In some embodiments, the driving member includes a first abutment portion, and the first abutment portion is disposed around an end of the clutch mating portion away from the movable member;

[0025] The transmission rod comprises:

[0026] A second abutting portion, the second abutting portion being disposed around an end of the clutch portion away from the driving member; and

[0027] A screw rod is arranged at one end of the clutch portion away from the driving member; an outer wall of the screw rod is provided with an external thread; and the external thread of the screw rod can be threadably matched with the internal thread of the sleeve.

[0028] In some embodiments, the clutch member comprises:

[0029] The clutch member comprises:

[0030] A first abutting end, wherein the first abutting end is sleeved on the power output end of the driving member and abuts against a first abutting portion of the driving member;

[0031] a clutch spring, one end of which is connected to the first abutting end; and

[0032] The second abutting end is connected to the other end of the clutch spring; the second abutting end is sleeved on one end of the screw rod close to the driving member; the second abutting end abuts against the second abutting portion.

[0033] In some embodiments, the support rod body further comprises:

[0034] A load detection device, which is disposed at a power output end of the driving member and is used to detect a load condition of the driving member; and

[0035] A first control device, the first control device being electrically connected to the load detection device and the driving member respectively;

[0036] When the load detection device detects that the load of the driving member is less than a preset value, the first control device controls the driving member to stop outputting power so that the movable member is suspended at the current position, thereby allowing the first magnet to maintain support for the second magnet and the car tailgate.

[0037] In some embodiments, the support rod body further includes a self-resetting switch, which is disposed on the inner wall of the housing and is located between the first abutting portion and the second abutting portion when the clutch member lifts the movable member; the self-resetting switch is electrically connected to the driving member; the self-resetting switch is used to control the start and stop of the driving member;

[0038] Wherein, the self-resetting switch is used for compressing the clutch spring and moving it toward the driving member when the tailgate of the automobile is closed, and the second abutting portion of the movable member abuts and triggers the self-resetting switch, thereby starting the driving member; when the tailgate of the automobile does not move toward the automobile body as the movable member contracts due to being clamped by the obstacle, the repulsive force formed between the first magnet and the second magnet is not sufficient to depress the clutch spring, the movable member separates from the self-resetting switch, and the self-resetting switch is reset, so that the driving member stops, and the movable member and the first magnet are suspended.

[0039] In some embodiments, the support rod body further includes a second control device, which is disposed on the driving member and is electrically connected to the driving member; the second control device is used to receive a control signal for the tailgate of the automobile, and control the start and stop of the driving member according to the control signal;

[0040] Wherein, the second control device is used to enable the driving member to start when it receives the electrical signal of the self-resetting switch being pressed and the control signal of the second control device at the same time, otherwise the driving member will not start.

[0041] In some embodiments, the first magnet and / or the second magnet is in the shape of an elongated strip, so that the first magnet can always be opposite to the second magnet during the movement of the tailgate of the automobile.

[0042] In some embodiments, the first magnet comprises:

[0043] A first base, one end of which is disposed at an end of the movable member away from the driving member; and

[0044] A plurality of first magnetic blocks, wherein the plurality of first magnetic blocks are arranged in a Halbach array at one end of the first base facing the tailgate of the vehicle; a strong side magnetic field formed by the plurality of first magnetic blocks arranged in a Halbach array faces the tailgate of the vehicle;

[0045] The second magnet comprises:

[0046] A second base, one end of which is disposed on the tailgate of the vehicle; and

[0047] A plurality of second magnetic blocks, wherein the plurality of second magnetic blocks are arranged at the other end of the second base in a Halbach array; a strong side magnetic field formed by the plurality of second magnetic blocks arranged in a Halbach array faces the vehicle body;

[0048] The strong side magnetic poles formed by the plurality of the first magnetic blocks are the same as the strong side magnetic poles formed by the plurality of the second magnetic blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0050] Figure 1 A schematic diagram of the structure of the electric tailgate support rod of an automobile provided in an embodiment of the present application;

[0051] Figure 2 A cross-sectional view of a support rod body provided in an embodiment of the present application;

[0052] Figure 3 A schematic diagram of the structure of a clutch member provided in an embodiment of the present application;

[0053] Figure 4 A schematic diagram of the structure of a transmission rod provided in an embodiment of the present application;

[0054] Figure 5 A schematic diagram of the partial structure of the clutch portion provided in an embodiment of the present application.

[0055] Among them, the reference numerals in the figure are:

[0056] 100. Automobile electric tailgate support rod; 10. Support rod body; 101. First magnet; 102. Mounting part; 103. Shell; 104. Driving member; 1041. First abutting part; 105. Movable member; 1051. Transmission rod; 10511. Second abutting part; 10512. Screw rod; 1052. Sleeve; 106. Clutch part; 107. Clutch matching part; 108. Clutch member; 1081. First abutting end; 1082. Clutch spring; 1083. Second abutting end; 109. Self-resetting switch; 20. Support rod sub-body; 201. Second magnet. DETAILED DESCRIPTION

[0057] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0060] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0063] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0064] The car electric tailgate support rod is a device that assists the driver to open or close the car tailgate in an electrically powered manner.

[0065] In the related art, the electric tailgate support rod of the automobile usually adopts electronic control components such as sensors to assist in realizing the anti-pinch function. However, when the electronic control system fails due to a malfunction, the sensor cannot work normally, causing the anti-pinch function of the electric tailgate to fail and injure the user.

[0066] Based on this, in order to improve the problem in the related art that when the electronic control system fails, the sensor cannot work normally, resulting in the failure of the anti-pinch function of the electric tailgate and the user being pinched, the embodiment of the present application provides the following solution.

[0067] Please also read Figure 1The embodiment of the present application provides an electric tailgate support rod 100 for an automobile. The electric tailgate support rod 100 for an automobile comprises a support rod main body 10 and a support rod sub-body 20. One end of the support rod main body 10 is used to be set on the automobile body. The support rod main body 10 can be extended and retracted. The support rod main body 10 comprises a first magnet 101; one end of the support rod sub-body 20 is used to be set on the automobile tailgate, and the support rod sub-body 20 comprises a second magnet 201; wherein the first magnet 101 and the second magnet 201 are opposite to each other and are arranged at intervals, and the same magnetic poles of the first magnet 101 and the second magnet 201 are opposite to each other, so that the support rod main body 10 can support the automobile tailgate through the repulsive force of the first magnet 101 on the second magnet 201; if an obstacle prevents the automobile tailgate from moving toward the automobile body during the contraction of the support rod main body 10, the support rod main body 10 will not generate traction on the support rod sub-body 20 and the automobile tailgate, and thus will not clamp the obstacle.

[0068] It can be understood that the support rod body 10 is a rod-shaped device with a telescopic function. The support rod body 10 can be a round rod or a square rod, but is not limited thereto. For example, the support rod body 10 may include a drive motor arranged on the vehicle body, a screw 10512 connected to the power output end of the drive motor, a sleeve 1052 sleeved on the screw 10512, the inner wall of the sleeve 1052 is provided with an internal thread matching the external thread on the screw 10512, and a first magnet 101 is provided at one end of the sleeve 1052. The screw 10512 is driven to rotate by the drive motor so that the sleeve 1052 can move along the axial direction of the screw 10512 to realize the telescopic function of the support rod body 10; or a pneumatic slide rail may be arranged on the vehicle body, and a guide rail is arranged on the pneumatic slide rail, the guide rail is connected to one end of the rod body, and the other end of the rod body is connected to the first magnet 101. By controlling the air pressure of different air chambers in the pneumatic slide rail, the guide rail can be driven to drive the rod body to move, thereby realizing the telescopic function of the support rod body 10, but it is not limited to this.

[0069] The first magnet 101 and the second magnet 201 can be a whole magnet or a magnet composed of multiple small magnets arranged in the same direction, but not limited thereto. The shape of the first magnet 101 and the second magnet 201 can be round or square, but not limited thereto. The obstacle that prevents the tailgate from moving toward the body of the car is an object that appears between the tailgate and the body of the car during the closing process of the tailgate, and can be a human body, an animal, or a tool, but not limited thereto.

[0070] As can be seen from the above, the electric tailgate support rod 100 of the automobile provided in the embodiment of the present application is provided with a telescopic support rod main body 10 on the automobile body, and a first magnet 101 is provided at one end of the support rod main body 10 facing the automobile tailgate, a support rod sub-body 20 is provided on the automobile tailgate, and a second magnet 201 is provided at one end of the support rod sub-body 20 facing the automobile body, and by making the same magnetic poles of the first magnet 101 and the second magnet 201 relatively arranged, the first magnet 101 and the second magnet 201 can generate mutual attraction. The mutual repulsion force, when the tailgate of the car needs to be opened, the support rod body 10 extends, and the tailgate of the car is lifted up through the repulsion force of the first magnet 101 on the second magnet 201; when the tailgate of the car needs to be closed, the support rod body 10 retracts, and the tailgate of the car closes under the action of gravity as the support rod body 10 retracts; when there is an obstacle preventing the tailgate of the car from closing, since the support rod body 10 does not produce a traction effect on the tailgate of the car, the tailgate of the car will not form a strong clamping on the obstacle, causing damage to the obstacle or the tailgate of the car. In this way, even if the extension and retraction of the support rod body 10 cannot be controlled due to a fault in the electronic control system, the tailgate of the car will not form a strong clamping on the obstacle that prevents the tailgate of the car from closing, which effectively improves the reliability of the tailgate support rod of the car, improves the safety of the tailgate support rod of the car, avoids the loss caused by damage to people or objects, reduces maintenance costs, and improves the user experience.

[0071] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 4 The support rod body 10 includes a mounting portion 102, a shell 103, a driving member 104 and a movable member 105, wherein the mounting portion 102 is used to be connected to the car body; one end of the shell 103 is connected to the mounting portion 102; the shell 103 has an internal space; the driving member 104 is arranged in the internal space at one end close to the mounting portion 102; the movable member 105 can be movably arranged in the internal space along the depth direction of the internal space; the first end of the movable member 105 is connected to the power output end of the driving member 104, and the second end of the movable member 105 is connected to the first magnet 101; the movable member 105 can be driven by the driving member 104 to move relative to the shell 103 along the depth direction of the internal space to protrude from the shell 103, thereby allowing the first magnet 101 to lift the car tailgate through the repulsive force on the second magnet 201.

[0072] It is understood that the mounting portion 102 can be a block or a plate-like structure, but is not limited thereto. The mounting portion 102 can be connected to the vehicle body by bolts by opening threaded holes, or can be welded to the vehicle body, but is not limited thereto. The housing 103 is a component used to protect and support the internal structure, and the outer shape of the housing 103 can be cylindrical or square, but is not limited thereto. The driving member 104 is a component used to drive the movable member 105 to move, and can be, for example, a stepping motor or a servo motor, but is not limited thereto. The movable part 105 is a component arranged in the internal space of the shell 103, which can realize the telescopic function under the drive of the driving part 104. For example, it can be a screw 10512 with one end connected to the power output end of the driving part 104, and a sleeve 1052 is sleeved on the screw 10512. The inner wall of the sleeve 1052 is provided with an internal thread matching the external thread on the screw 10512. A first magnet 101 is provided at one end of the sleeve 1052. The screw 10512 is driven by a driving motor to rotate, so that the sleeve 1052 can move along the axial direction of the screw 10512 to realize the telescopic function of the support rod body 10; or a pneumatic slide rail can be provided on the vehicle body, and a slider is provided on the pneumatic slide rail. The slider is connected to one end of the rod body, and the other end of the rod body is connected to the first magnet 101. By controlling the air pressure of different air chambers in the pneumatic slide rail, the slider can be driven to drive the rod body to move, thereby realizing the telescopic function of the support rod body 10, but it is not limited to this.

[0073] In this configuration, the support rod body 10 of the electric tailgate support rod 100 of the automobile is connected to the automobile body through the mounting portion 102, and the driving member 104 and the movable member 105 are accommodated through the housing 103. The movable member 105 is driven to extend and retract by the driving member 104, and then the electric tailgate of the automobile can be lifted up by the repulsive force of the first magnet 101 on the second magnet 201, or the electric tailgate of the automobile can be closed with the retraction of the movable member 105 under the action of gravity. In this way, the convenience of the electric tailgate of the automobile can be improved, and the user can open and close the electric tailgate of the automobile without direct contact, and the opening and closing of the electric tailgate of the electric vehicle has consistency in speed and force, which can effectively extend the service life of the electric tailgate of the automobile, is conducive to realizing the anti-pinch function, reducing the contact between the user and the electric tailgate of the automobile, and reducing the damage to the user caused by being pinched.

[0074] Optionally, in some embodiments, see Figures 1 to 5The support rod body 10 also includes a clutch portion 106, a clutch matching portion 107 and a clutch member 108, wherein the clutch portion 106 is arranged at the first end of the movable member 105; the clutch matching portion 107 is arranged at an end of the power output end of the driving member 104 close to the movable member 105; the clutch matching portion 107 can be connected to the clutch portion 106 and transmit power; one end of the clutch member 108 is arranged at the first end of the movable member 105, and the other end of the clutch member 108 is arranged at the power output end of the driving member 104; the clutch member 108 is used to lift the movable member 105 when the tailgate of the automobile does not fall down following the retraction of the support rod body 10, so as to disconnect the clutch portion 106 from the clutch matching portion 107, thereby disconnecting the first end of the movable member 105 from the power output end of the driving member 104.

[0075] It can be understood that the clutch part 106 and the clutch matching part 107 are a set that can be detachably connected and can transmit power. Different clutch parts 106 and clutch matching parts 107 are selected according to the power output end of the driving member 104 and the structure of the movable member 105. The clutch member 108 is a component used to disconnect the clutch part 106 from the clutch matching part 107. For example, assuming that the driving member 104 is a motor, the power output end of the driving member 104 is a rotating shaft, and the movable member 105 is a matching screw 10512 and a sleeve 1052, the clutch portion 106 and the clutch matching portion 107 can be matching couplings. For example, the clutch portion 106 is provided with a plurality of first ramps arranged along the axial direction of the driving member 104 on one end surface facing the driving member 104, and the clutch matching portion 107 is provided with a plurality of second ramps arranged along the axial direction of the screw 10512 on the end surface facing the movable member 105. The first ramp and the second ramp can mesh to transmit torque. When the clutch member 108 can be a metal spring, the elastic force of the spring can The clutch part 106 and the clutch matching part 107 are separated by the spring, and the power transmission is cut off; or assuming that the driving part 104 is an air pump, the movable part 105 includes a cylinder, wherein the cylinder is arranged in the internal space and arranged along the depth direction of the internal space, and the air pump is connected to the gas input end of the cylinder, and the air pressure of the air chamber in the cylinder is controlled to drive the piston and the piston rod to move, then the clutch part 106 and the clutch matching part 107 can be two quick-connect air pipe joints, and the clutch part 108 can be a gas spring sleeved on the quick-connect air pipe joint. The gas spring can expand and spring up when not under pressure to loosen the fit between the two quick-connect air pipe joints, so that the gas input stops and the power transmission is cut off, but it is not limited to this.

[0076] With such arrangement, the driving member 104 and the movable member 105 can be detachably connected through the clutch portion 106 and the clutch matching portion 107, and can transmit power when connected. The clutch portion 108 can lift up the movable member 105 when the electric tailgate of the automobile does not fall down following the retraction of the support rod body 10, so that the clutch portion 106 and the clutch matching portion 107 are disconnected, and then the connection between the first end of the movable member 105 and the power output end of the driving member 104 is disconnected. In this way, when the electric tailgate of the automobile is blocked by an obstacle, the movable member 105 will not continue to retract, but will hover at the position where the electric tailgate of the automobile is blocked. When the obstacle is removed, the electric tailgate of the automobile will not directly fall onto the automobile body, thereby reducing the possibility of damage to the automobile body or objects such as a person, significantly improving the safety of the electric tailgate of the automobile, and effectively extending the service life of the electric tailgate of the automobile, which is conducive to realizing the anti-pinch function.

[0077] Optionally, see Figures 1 to 4 The movable part 105 also includes a transmission rod 1051 and a sleeve 1052. The transmission rod 1051 can be rotatably arranged in the internal space along its own axis; the outer wall of the transmission rod 1051 is provided with an external thread; the sleeve 1052 is arranged in the internal space; the sleeve 1052 is sleeved on the transmission rod 1051, and the inner wall of the sleeve 1052 is provided with an internal thread. The internal thread of the inner wall of the sleeve 1052 can be threadedly matched with the external thread of the outer wall of the transmission rod 1051, so that the sleeve 1052 moves along the axial direction of the transmission rod 1051 as the transmission rod 1051 rotates; wherein the clutch part 108 is arranged at one end of the transmission rod 1051 close to the driving part 104.

[0078] It can be understood that the sleeve 1052 is sleeved on the transmission rod 1051, and can move from the internal space to protrude from the housing 103. The end of the sleeve 1052 close to the driving member 104 is provided with a raised limiting structure so that the sleeve 1052 cannot be completely moved to the outside of the housing 103. The end of the sleeve 1052 away from the driving member 104 is connected to the first magnet 101. The outer wall of the sleeve 1052 can be a cylinder or a cuboid, but is not limited thereto. When the outer wall of the sleeve 1052 is a cylinder, the cross-section of the internal space of the shell 103 is circular, at least one protrusion structure is provided on the outer wall of the sleeve 1052, and a groove is provided on the inner wall of the shell 103 along the depth direction of the internal space, and the protrusion structure of the sleeve 1052 can move in the groove on the inner wall of the shell 103, so that the sleeve 1052 is in sliding contact with the inner wall of the shell 103, and the sleeve 1052 will not rotate with the transmission rod 1051; or the outer wall of the sleeve 1052 can be a rectangular parallelepiped, then the cross-section of the internal space of the shell 103 is square, and the outer wall of the sleeve 1052 is in movably contact with the inner wall of the sleeve 1052, so that the sleeve 1052 can move stably along the transmission rod 1051 and does not rotate with the transmission rod 1051.

[0079] With such an arrangement, the drive rod 1051 is driven to rotate by the driving member 104, so that the sleeve 1052 can move on the drive rod 1051 along the axial direction of the drive rod 1051, thereby achieving stable and efficient power transmission, and the transmission structure is simple and easy to maintain, which effectively saves human resources required for maintenance, reduces maintenance costs, reduces the failure rate of the automobile tailgate support rod, is conducive to extending the service life of the automobile tailgate support rod, and saves use costs.

[0080] In some embodiments, see Figures 1 to 4 The driving member 104 includes a first abutment portion 1041, which is arranged around the end of the clutch matching portion 107 away from the movable member 105; the transmission rod 1051 includes a second abutment portion 10511 and a screw 10512, and the second abutment portion 10511 is arranged around the end of the clutch portion 106 away from the driving member 104; the screw 10512 is arranged at the end of the clutch portion 106 away from the driving member 104; the outer wall of the screw 10512 is provided with an external thread; the external thread of the screw 10512 can be threadedly matched with the internal thread of the sleeve 1052.

[0081] It can be understood that the first abutment portion 1041 is arranged around the end of the clutch portion 106 on the movable member 105 away from the driving member 104, and the clutch member 108 can lift the movable member 105 through the first abutment portion 1041. The first abutment portion 1041 can be a structure protruding from the power output end of the clutch portion 106 to form a height difference between the clutch portion 106 and the first abutment portion 1041, so that the clutch member 108 is sleeved with the clutch portion 106 and abuts against the first abutment portion 1041. The first abutment portion 1041 can be an annular protrusion structure, or it can include a plurality of rod-shaped protrusion structures distributed in an annular shape, but it is not limited thereto. The second abutment portion 10511 is a component used to abut the clutch member 108 and limit the clutch member 108. The second abutment portion 10511 can be an annular protrusion structure protruding from the clutch matching portion 107, or it can be a rod-shaped structure, but it is not limited thereto.

[0082] In this arrangement, the clutch member 108 is limited by the first abutting portion 1041 and the second abutting portion 10511, so that the clutch member 108 can be located between the clutch portion 106 and the clutch matching portion 107, and the power transmission will not be affected. When the electric tailgate of the automobile does not fall down following the retraction of the support rod body 10, the movable member 105 is lifted up to disconnect the clutch portion 106 from the clutch matching portion 107, thereby disconnecting the first end of the movable member 105 from the power output end of the driving member 104. In this way, the reliability of the connection between the clutch portion 106 and the clutch matching portion 107 is increased, thereby ensuring the reliability of the automobile tailgate support rod, reducing the failure rate of the automobile tailgate support rod, facilitating maintenance, reducing the cost required for maintenance, and extending the service life of the automobile tailgate support rod.

[0083] Optionally, in some embodiments, see Figures 1 to 3 The clutch member 108 includes a first abutting end 1081, a clutch spring 1082 and a second abutting end 1083. The first abutting end 1081 is sleeved on the power output end of the driving member 104 and abuts against the first abutting portion 1041 of the driving member 104; one end of the clutch spring 1082 is connected to the first abutting end 1081; the second abutting end 1083 is connected to the other end of the clutch spring 1082; the second abutting end 1083 is sleeved on one end of the screw 10512 close to the driving member 104; the second abutting end 1083 abuts against the second abutting portion 10511.

[0084] It can be understood that the first abutting end 1081 always maintains abutment with the first abutting portion 1041 of the driving member 104, and the second abutting end 1083 always maintains abutment with the second abutting portion 10511 of the movable member 105. The diameter of the clutch spring 1082 is larger than the diameter of the power output end of the driving member 104, so that when the first abutting end 1081 is sleeved on the power output end of the driving member 104, the clutch spring 1082 is spaced from the power output end of the driving member 104. The diameter of the clutch spring 1082 is larger than the diameter of the end of the screw rod 10512 close to the driving member 104, so that when the second abutting end 1083 is sleeved on the end of the screw rod 10512 close to the driving member 104, the clutch spring 1082 is spaced from the end of the screw rod 10512 close to the driving member 104. After the power connection between the driving member 104 and the movable member 105 is disconnected, the first abutting end 1081 or the second abutting end 1083 will rotate relative to each other, generating friction with the first abutting portion 1041 or the second abutting portion 10511. Therefore, the first abutting end 1081 and the second abutting end 1083 need to be made of wear-resistant materials, such as silicon manganese spring steel or carbon spring steel, but not limited to these.

[0085] With such arrangement, the clutch 108 always contacts the driving member 104 and the movable member 105, but does not affect the power transmission between the driving member 104 and the movable member 105, nor does it transmit the power from the power output end of the driving member 104 to the movable member 105. When the tailgate of the automobile falls down with the retraction of the support rod body 10, the clutch 108 can be compressed to move the movable member 105 toward the driving member 104, thereby connecting the power output end of the driving member 104 with the movable member 105 and transmitting power; when the tailgate of the automobile does not fall down with the retraction of the support rod body 10, the clutch 108 lifts the movable member 105, disconnects the connection between the driving member 104 and the movable member 105, thereby disconnects the connection between the movable member 105 and the power output end of the driving member 104, and the first magnet 101 can be suspended at the current position with the movable member 105. In this way, when the obstacle is removed, the car tailgate will not fall directly due to gravity due to loss of support, which can prevent the car tailgate and the car body from being damaged, reduce the failure rate of the car tailgate support rod, facilitate maintenance, reduce the cost of maintenance, and can increase the service life of the car tailgate. It also reduces the probability of users being injured and improves the safety of the car tailgate.

[0086] Optionally, the support rod body 10 also includes a load detection device and a first control device, the load detection device is arranged at the power output end of the driving member 104, and is used to detect the load condition of the driving member 104; the first control device is electrically connected to the load detection device and the driving member 104 respectively; wherein, when the load detection device detects that the load of the driving member 104 is less than a preset value, the first control device controls the driving member 104 to stop outputting power, so that the movable member 105 hovers at the current position, thereby allowing the first magnet 101 to maintain support for the second magnet 201 and the tailgate of the car.

[0087] It can be understood that the load detection device can be an ammeter connected to the driver 104, which determines the load condition of the driver 104 by detecting the current value of the circuit where the driver 104 is located; or it can be a torque sensor, which determines the load condition of the driver 104 by detecting the torque of the driver 104, but is not limited thereto. The first control device is a component capable of data processing, so as to process the information detected by the load detection device, for example, it can be an MCU, or a data processing chip, but is not limited thereto.

[0088] With such a configuration, through the load detection device and the first control device, when the electric tailgate of the automobile does not fall down following the retraction of the support rod body 10, the driving member 104 is controlled to stop outputting power. At this time, the obstacle is removed, the electric tailgate of the automobile falls down, and the movable member 105 is forced to compress the clutch member 108, and the connection between the driving member 104 and the movable member 105 is restored. The movable member 105 can still remain in place without moving and continue to support the automobile tailgate. In this way, the convenience of using the automobile tailgate is increased, the adaptability of the automobile tailgate to different usage conditions is improved, the user experience is improved, and the frequent starting and adjustment of the motor of the driving member 104 can be avoided, the service life of the automobile tailgate is extended, and the clutch member 108 structure of the automobile tailgate support rod can be redundant with each other, further improving the safety of the automobile tailgate.

[0089] In some embodiments, see Figure 1 and Figure 2 The support rod body 10 also includes a self-resetting switch 109, which is arranged on the inner wall of the housing 103 and is located between the first abutting portion 1041 and the second abutting portion 10511 when the clutch member 108 lifts the movable member 105; the self-resetting switch 109 is electrically connected to the driving member 104; the self-resetting switch 109 is used to control the start and stop of the driving member 104; wherein the self-resetting switch 109 is used to enable the movable member 105 to compress the clutch spring 1082 and move toward the driving member 104 when the tailgate of the automobile is closed. The second abutment portion 10511 of the movable member 105 abuts against and triggers the self-resetting switch 109, thereby starting the driving member 104; when the tailgate of the automobile does not move toward the automobile body as the movable member 105 contracts due to being clamped by an obstacle, the repulsive force formed between the first magnet 101 and the second magnet 201 is insufficient to depress the clutch spring 1082, and the movable member 105 separates from the self-resetting switch 109, thereby resetting the self-resetting switch 109 and stopping the driving member 104, thereby causing the movable member 105 and the first magnet 101 to suspend.

[0090] It can be understood that the self-reset switch 109 is a normally closed self-reset switch 109, which is closed when triggered by force. The self-reset switch 109 can be a spring-type self-reset switch 109 or a lever-type self-reset switch 109, but is not limited thereto.

[0091] With such a configuration, the start and stop of the driving member 104 is controlled by the self-resetting switch 109. When the electric tailgate of the automobile follows the retraction of the support rod body 10 and falls, the movable member 105 compresses the clutch member 108 and presses the self-resetting switch 109, so that the driving member 104 remains started and continuously provides power. When the electric tailgate of the automobile does not follow the retraction of the support rod body 10 and falls, the movable member 105 is lifted by the clutch member 108, the power connection between the movable member 105 and the driving member 104 is disconnected, the self-resetting switch 109 is reset, and the driving member 104 stops providing power. In this way, the driving member 104 can be prevented from running without load, the service life of the driving member 104 can be extended, the failure rate of the electric tailgate support rod 100 of the automobile can be reduced, and avoiding no-load operation can reduce energy consumption, which is beneficial to improving the endurance of the automobile.

[0092] In some embodiments, the support rod body 10 also includes a second control device, which is arranged on the driving member 104 and is electrically connected to the driving member 104; the second control device is used to receive a control signal for the tailgate of the automobile, and control the start and stop of the driving member 104 according to the control signal; wherein the second control device is used to start the driving member 104 when it simultaneously receives the electrical signal pressed by the self-resetting switch 109 and the control signal of the second control device, otherwise the driving member 104 will not start.

[0093] It can be understood that the second control device may have a signal receiver to receive data, and a component capable of data processing to process the received signal, such as an MCU, a data processing chip, etc. The control signal for the tailgate of the car may be a tailgate control signal from a user via a button in the car, or may be a tailgate control signal from a user via a car remote control, but is not limited thereto.

[0094] In this way, by setting up the second control device, the driving member 104 needs to receive the control signal and trigger the self-resetting switch 109 at the same time to start. When the electric tailgate of the automobile is blocked by an obstacle, the movable member 105 is disconnected from the driving member 104, and the driving member 104 stops running; when the obstacle is removed and the electric tailgate of the automobile falls, the movable member 105 is reconnected with the driving member 104 and the self-resetting switch 109 is triggered. At this time, the second control device still needs to receive the control signal to start the driving member 104. In this way, the electric tailgate of the automobile can be suspended at the blocked position after being blocked by an obstacle, which effectively improves the reliability and safety of the electric tailgate support rod 100 of the automobile, avoids the loss caused by damage to people or objects, reduces maintenance costs, and improves the user experience.

[0095] In some embodiments, see Figure 1The first magnet 101 and / or the second magnet 201 are in a long strip shape, so that the first magnet 101 can always be opposite to the second magnet 201 during the movement of the tailgate of the car.

[0096] It can be understood that since there is no substantial connection between the support rod body 10 and the support rod sub-body 20, the support rod body 10 needs to be installed on the car body at a fixed upward angle. During the extension or shortening of the movable part 105 of the support rod body 10, the relative position of the first magnet 101 and the car tailgate will change. It is necessary to set one of the first magnet 101 and the second magnet 201, or both of them, into a long strip shape so that the extension line of the support rod body 10 can always pass through the second magnet 201, that is, the first magnet 101 can always be opposite to the second magnet 201 during the movement of the car tailgate, thereby generating a repulsive force large enough between the first magnet 101 and the second magnet 201 to lift the car electric tailgate.

[0097] With such arrangement, during the opening or closing process of the automobile tailgate, as the movable part 105 of the support rod body 10 extends or shortens, the relative position of the first magnet 101 and the automobile tailgate will change. The first magnet 101 and / or the second magnet 201 are in an elongated strip shape, which can ensure that the first magnet 101 can always be opposite to the second magnet 201 during the movement of the automobile tailgate. In this way, the automobile tailgate can operate smoothly during use, which is beneficial to improving the safety of the automobile tailgate, reducing the impact of the automobile tailgate on the automobile body structure, extending the service life of the automobile tailgate and the automobile body, reducing maintenance costs, reducing noise generated during use, and improving ride comfort.

[0098] In some embodiments, the first magnet 101 includes a first base and a plurality of first magnetic blocks, one end of the first base is arranged at an end of the movable member 105 away from the driving member 104; the plurality of first magnetic blocks are arranged in a Halbach array at an end of the first base facing the tailgate of the vehicle; the strong side magnetic field formed by the plurality of first magnetic blocks arranged in the Halbach array faces the tailgate of the vehicle;

[0099] The second magnet 201 includes a second base and a plurality of second magnetic blocks, wherein one end of the second base is arranged on the tailgate of the automobile; the plurality of second magnetic blocks are arranged on the other end of the second base in a Halbach array; the strong side magnetic field formed by the plurality of second magnetic blocks arranged in the Halbach array faces the automobile body; wherein the strong side magnetic poles formed by the plurality of first magnetic blocks are the same as the strong side magnetic poles formed by the plurality of second magnetic blocks.

[0100] It can be understood that the Halbach array is a magnet arrangement method. Magnets arranged in the Halbach array can generate a strong magnetic field in one direction, while the magnetic field in the opposite direction is almost zero.

[0101] In this way, the first magnet 101 and the second magnet 201 are formed according to the Halbach array, so that the strong side magnetic poles of the first magnet 101 and the second magnet 201 are the same and opposite, so that less magnetic block material is needed to generate a sufficiently strong magnetic force, which is beneficial to saving material costs and reducing the weight of the vehicle body. In addition, the weak sides of the first magnet 101 and the second magnet 201 have almost no magnetic force, avoiding the accumulation of debris, reducing the failure rate of the automobile tailgate support rod, and helping to extend the service life of the automobile tailgate support rod.

[0102] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A car electric tailgate support rod, characterized in that: include: A support rod body, one end of which is used to be arranged on the vehicle body, the support rod body is retractable, and the support rod body includes a first magnet; as well as A support rod sub-body, one end of which is used to be arranged on the tailgate of the car, and the support rod sub-body includes a second magnet; The first magnet and the second magnet are arranged at a relative interval, and the same magnetic poles of the first magnet and the second magnet are opposite, so that the support rod body can support the tailgate of the automobile through the repulsive force of the first magnet on the second magnet; if an obstacle prevents the tailgate of the automobile from moving toward the automobile body during the contraction of the support rod body, the support rod body will not generate traction force on the support rod sub-body and the tailgate of the automobile, and will not clamp the obstacle; The support rod body comprises: A mounting portion, the mounting portion being used to be connected to the vehicle body; A shell, one end of which is connected to the mounting portion; the shell has an internal space; a driving member, the driving member being disposed in the inner space at one end close to the mounting portion; and A movable member, the movable member is movably disposed in the inner space along the depth direction of the inner space; a first end of the movable member is connected to a power output end of the driving member, and a second end of the movable member is connected to the first magnet; the movable member can be driven by the driving member to move relative to the shell along the depth direction of the inner space to protrude from the shell, thereby causing the first magnet to lift the tailgate of the car through a repulsive force on the second magnet; The support rod body also includes: A clutch portion, the clutch portion being disposed at a first end of the movable member; A clutch mating part, the clutch mating part is arranged at one end of the power output end of the driving member close to the movable member; the clutch mating part can be connected with the clutch part and transmit power; and A clutch member, one end of which is arranged at the first end of the movable member, and the other end of which is arranged at the power output end of the driving member; the clutch member is used to lift up the movable member when the tailgate of the automobile does not fall down following the retraction of the support rod body, so as to disconnect the clutch part from the clutch matching part, thereby disconnecting the first end of the movable member from the power output end of the driving member.

2. The electric tailgate support rod for automobile according to claim 1, characterized in that: The driving member is an air pump; the movable member includes a cylinder, which is arranged in the inner space along the depth direction of the inner space; the air pump is connected to the gas input end of the cylinder and is used to control the gas pressure of the air chamber in the cylinder to drive the piston and the piston rod to move; The clutch part and the clutch mating part are two quick-connect air pipe connectors; the clutch part is a gas spring sleeved on the quick-connect air pipe connector. When not under pressure, the gas spring can expand and bounce up to loosen the fit between the two quick-connect air pipe connectors, stop gas input, and disconnect power transmission.

3. The electric tailgate support rod for automobile according to claim 1, characterized in that: The movable part also includes: A transmission rod, the transmission rod is rotatably arranged in the internal space along its own axis; the outer wall of the transmission rod is provided with an external thread; and A sleeve, the sleeve is arranged in the internal space; the sleeve is sleeved on the transmission rod, the inner wall of the sleeve is provided with an internal thread, and the internal thread of the inner wall of the sleeve can be threadedly matched with the external thread of the outer wall of the transmission rod, so that the sleeve moves along the axial direction of the transmission rod as the transmission rod rotates; Wherein, the clutch member is arranged at one end of the transmission rod close to the driving member.

4. The electric tailgate support rod for automobile as claimed in claim 3, characterized in that: The driving member comprises a first abutting portion, and the first abutting portion is disposed around an end of the clutch matching portion away from the movable member; The transmission rod comprises: A second abutting portion, the second abutting portion being disposed around an end of the clutch portion away from the driving member; and A screw, the screw being arranged at one end of the clutch portion away from the driving member; the outer wall of the screw being provided with an external thread; the external thread of the screw being threadably matched with the internal thread of the sleeve; and / or The clutch member comprises: A first abutting end, wherein the first abutting end is sleeved on the power output end of the driving member and abuts against a first abutting portion of the driving member; a clutch spring, one end of which is connected to the first abutting end; and The second abutting end is connected to the other end of the clutch spring; the second abutting end is sleeved on one end of the screw rod close to the driving member; the second abutting end abuts against the second abutting portion.

5. The electric tailgate support rod for automobile according to claim 1, characterized in that: The support rod body also includes: A load detection device, which is disposed at a power output end of the driving member and is used to detect a load condition of the driving member; and A first control device, the first control device being electrically connected to the load detection device and the driving member respectively; When the load detection device detects that the load of the driving member is less than a preset value, the first control device controls the driving member to stop outputting power so that the movable member is suspended at the current position, thereby allowing the first magnet to maintain support for the second magnet and the car tailgate.

6. The electric tailgate support rod for automobile as claimed in claim 4, characterized in that: The support rod body further includes a self-resetting switch, which is disposed on the inner wall of the housing and is located between the first abutting portion and the second abutting portion when the clutch member lifts the movable member; the self-resetting switch is electrically connected to the driving member; the self-resetting switch is used to control the start and stop of the driving member; Wherein, the self-resetting switch is used for compressing the clutch spring and moving it toward the driving member when the tailgate of the automobile is closed, and the second abutting portion of the movable member abuts and triggers the self-resetting switch, thereby starting the driving member; when the tailgate of the automobile does not move toward the automobile body as the movable member contracts due to being clamped by the obstacle, the repulsive force formed between the first magnet and the second magnet is not sufficient to depress the clutch spring, the movable member separates from the self-resetting switch, and the self-resetting switch is reset, so that the driving member stops, and the movable member and the first magnet are suspended.

7. The electric tailgate support rod for automobile as claimed in claim 6, characterized in that: The support rod body also includes a second control device, which is disposed on the driving member and is electrically connected to the driving member; the second control device is used to receive a control signal for the tailgate of the automobile and control the start and stop of the driving member according to the control signal; Wherein, the second control device is used to enable the driving member to start when it receives the electrical signal of the self-resetting switch being pressed and the control signal of the second control device at the same time, otherwise the driving member will not start.

8. The electric tailgate support rod for automobile as claimed in claim 1, characterized in that: The first magnet and / or the second magnet are in the shape of an elongated strip, so that the first magnet can always be opposite to the second magnet during the movement of the tailgate of the automobile.

9. The electric tailgate support rod for automobile according to claim 1, characterized in that: The first magnet comprises: A first base, one end of which is disposed at an end of the movable member away from the driving member; and A plurality of first magnetic blocks, wherein the plurality of first magnetic blocks are arranged in a Halbach array at one end of the first base facing the tailgate of the vehicle; a strong side magnetic field formed by the plurality of first magnetic blocks arranged in a Halbach array faces the tailgate of the vehicle; The second magnet comprises: A second base, one end of which is disposed on the tailgate of the vehicle; and A plurality of second magnetic blocks, wherein the plurality of second magnetic blocks are arranged at the other end of the second base in a Halbach array; a strong side magnetic field formed by the plurality of second magnetic blocks arranged in a Halbach array faces the vehicle body; The strong side magnetic poles formed by the plurality of the first magnetic blocks are the same as the strong side magnetic poles formed by the plurality of the second magnetic blocks.

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