Vehicle back door attraction device and vehicle

Abstract

The utility model discloses a kind of vehicle back door suction device and vehicle, it is related to vehicle technical field, and wherein, vehicle back door suction device includes: electromagnetic iron suction module, electromagnetic iron suction module is set on the back panel of vehicle;Ferromagnetic suction plate module, ferromagnetic suction plate module is set on the back door of vehicle, and ferromagnetic suction plate module and electromagnetic iron suction module are set in alignment;Controller, controller is used to control electromagnetic iron suction module power to make electromagnetic iron suction module and ferromagnetic suction plate module suction.The utility model can eliminate motor noise in the closing process of vehicle back door, to improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a vehicle tailgate closing device and a vehicle. Background Technology

[0002] In the field of vehicle manufacturing, the closing control of the vehicle's tailgate (i.e., the trunk door or tailgate) is a key aspect of ensuring vehicle performance and user experience.

[0003] Currently, electric soft-close locks are typically used as the core actuator for controlling the closing of vehicle tailgates. The process involves the electric soft-close lock's drive motor activating when the tailgate is in a partially locked state (i.e., initially closed but not fully sealed), which then drives the internal transmission mechanism to close the tailgate. This results in noise from the motor during the tailgate closing process, negatively impacting the user experience.

[0004] In summary, how to eliminate motor noise during the closing process of vehicle tailgates to improve user experience is a technical problem that urgently needs to be solved in the field of vehicle technology. Utility Model Content

[0005] The main purpose of this invention is to provide a vehicle tailgate closing device that aims to eliminate motor noise during the closing process of the vehicle tailgate, thereby improving the user experience.

[0006] To achieve the above objectives, the present invention provides a vehicle tailgate suction device, which includes:

[0007] An electromagnetic magnet module is mounted on the rear panel of the vehicle.

[0008] A ferromagnetic suction plate module is disposed on the tailgate of the vehicle, and the ferromagnetic suction plate module is aligned with the electromagnetic magnet module.

[0009] A controller is used to energize the electromagnetic magnet module so that the electromagnetic magnet module and the ferromagnetic suction plate module are attracted to each other.

[0010] In one embodiment, the number of electromagnetic magnet modules is two, and the two electromagnetic magnet modules are symmetrically distributed on the rear panel of the vehicle with the longitudinal center plane of the vehicle as the plane of symmetry.

[0011] In one embodiment, the number of ferromagnetic suction plate modules is two, and the two ferromagnetic suction plate modules are symmetrically distributed on the rear door of the vehicle with the longitudinal center plane of the vehicle as the plane of symmetry.

[0012] In one embodiment, the area of ​​the contact surface of the ferromagnetic suction plate module is greater than or equal to the area of ​​the contact surface of the electromagnetic suction iron module;

[0013] The electromagnetic magnet module and the ferromagnetic suction plate module are located on the same side of the vehicle, and the contact surface of the electromagnetic magnet module and the contact surface of the ferromagnetic suction plate module are directly opposite each other and parallel.

[0014] In one embodiment, the electromagnetic magnet module includes an electromagnetic magnet and a first mounting base;

[0015] The first mounting bracket is mounted to the rear panel of the vehicle by fasteners, and the electromagnetic magnet is fixed to the first mounting bracket.

[0016] In one embodiment, the electromagnetic magnet module further includes a power interface for connecting to a vehicle power source.

[0017] The controller is used to control the power circuit of the electromagnetic magnet module to be turned on when it receives a stable half-lock signal triggered by the tailgate of the vehicle, so that the electromagnetic magnet module is attracted to the ferromagnetic suction plate module under the action of the magnetic field.

[0018] In one embodiment, the electromagnetic magnet module further includes a buffer pad disposed on the attraction surface of the electromagnetic magnet module.

[0019] In one embodiment, the ferromagnetic suction plate module includes a ferromagnetic suction plate and a second mounting base;

[0020] The second mounting bracket is installed on the vehicle tailgate by fasteners, and the ferromagnetic suction plate is fixed to the second mounting bracket.

[0021] In one embodiment, both the contact surface of the electromagnetic magnet module and the contact surface of the ferromagnetic suction plate module are chrome-plated.

[0022] In addition, to achieve the above objectives, this application also proposes a vehicle that includes the vehicle tailgate closing device as described above.

[0023] This utility model provides a vehicle tailgate suction device, which includes an electromagnetic magnet module, a ferromagnetic suction plate module, and a controller. The electromagnetic magnet module is disposed on the rear panel of the vehicle, and the ferromagnetic suction plate module is disposed on the tailgate of the vehicle, with the ferromagnetic suction plate module and the electromagnetic magnet module being aligned. The controller is used to control the electromagnetic magnet module to be energized so that the electromagnetic magnet module and the ferromagnetic suction plate module are attracted together.

[0024] Therefore, compared to the traditional method of closing the vehicle tailgate by driving it with a motor, this application sets up an electromagnetic magnet module on the rear panel of the vehicle and a ferromagnetic suction plate module on the tailgate. When the electromagnetic magnet module is energized, the electromagnetic magnet module and the ferromagnetic suction plate module will attract each other, eliminating the need to rely on a motor to drive the vehicle tailgate. This avoids the noise problem caused by motor operation and improves the user's vehicle experience. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the structure of the first embodiment of the vehicle tailgate suction device provided by this utility model;

[0027] Figure 2 A schematic diagram of the symmetrical structure of the second embodiment of the vehicle tailgate suction device provided by this utility model;

[0028] Figure 3 A schematic diagram of a single suction structure of the second embodiment of the vehicle tailgate suction device provided by this utility model;

[0029] Figure 4 A schematic diagram of the electromagnetic magnet module structure of the second embodiment of the vehicle tailgate closing device provided by this utility model.

[0030] Explanation of icon numbers:

[0031] 10. Electromagnetic magnet module; 101. Electromagnetic magnet; 102. First mounting base; 103. Power interface; 104. Buffer pad; c1. Suction surface; 20. Ferromagnetic suction plate module; 201. Ferromagnetic suction plate; 202. Second mounting base; c2. Fitting surface; 30. Controller; a. Rear panel; b. Back door.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "Solution 1 and / or Solution 2" includes Solution 1, or Solution 2, or a solution that simultaneously satisfies Solution 1 and Solution 2. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] Currently, electric soft-close locks are typically used as the core actuator for controlling the closing of vehicle tailgates. The process involves the electric soft-close lock's drive motor activating when the tailgate is in a partially locked state (i.e., initially closed but not fully sealed), which then drives the internal transmission mechanism to close the tailgate. This results in noise from the motor during the tailgate closing process, negatively impacting the user experience.

[0037] In summary, how to eliminate motor noise during the closing process of vehicle tailgates to improve user experience is a technical problem that urgently needs to be solved in the field of vehicle technology.

[0038] The main solution of this application is: an electromagnetic magnet module, which is installed on the rear panel of the vehicle; a ferromagnetic suction plate module, which is installed on the tailgate of the vehicle and is aligned with the electromagnetic magnet module; and a controller, which is used to control the electromagnetic magnet module to be energized so that the electromagnetic magnet module and the ferromagnetic suction plate module are attracted to each other.

[0039] Therefore, compared to the traditional method of closing the vehicle tailgate by driving it with a motor, this application sets up an electromagnetic magnet module on the rear panel of the vehicle and a ferromagnetic suction plate module on the tailgate. When the electromagnetic magnet module is energized, the electromagnetic magnet module and the ferromagnetic suction plate module will attract each other, eliminating the need to rely on a motor to drive the vehicle tailgate. This avoids the noise problem caused by motor operation and improves the user's vehicle experience.

[0040] This utility model proposes a vehicle tailgate suction device.

[0041] Please see Figure 1 In the first embodiment of this utility model, the vehicle tailgate suction device includes:

[0042] Electromagnetic magnet module 10, wherein the electromagnetic magnet module 10 is disposed on the rear panel a of the vehicle;

[0043] Ferromagnetic suction plate module 20 is disposed on the tailgate b of the vehicle, and the ferromagnetic suction plate module 20 is aligned with the electromagnetic suction iron module 10.

[0044] The controller 30 is used to control the electromagnetic magnet module 10 to be energized so that the electromagnetic magnet module 10 and the ferromagnetic suction plate module 20 are attracted together.

[0045] It's important to note that the rear panel (a) is a crucial sheet metal component at the rear of the vehicle, located in the trunk area. It connects the left and right sides of the vehicle horizontally and lies vertically between the rear of the trunk and the rear bumper. Its functions include separating the trunk from the outside space, supporting components like the rear bumper, and enhancing the structural strength and sealing of the rear of the vehicle. In the event of a rear-end collision, it can also absorb impact energy to some extent, protecting the occupants and items in the trunk. The tailgate (b) refers to the opening door of the vehicle's trunk, also commonly called the trunk door or tailgate. It's used to close and open the trunk space for easy access to items. It's typically connected to the vehicle body via hinges and can be lifted upwards (common in SUVs) or opened to one side (in some models). The door usually integrates a locking mechanism, sealing strips, interior panels, etc., and some models also feature electric opening and closing functions for enhanced convenience.

[0046] The vehicle tailgate closing device of this application includes an electromagnetic magnet module 10, a ferromagnetic suction plate module 20, and a controller 30. The electromagnetic magnet module 10 is disposed on the rear panel a of the vehicle, and the ferromagnetic suction plate module 20 is disposed on the tailgate b of the vehicle. The ferromagnetic suction plate module 20 and the electromagnetic magnet module 10 are aligned, meaning that the ferromagnetic suction plate module 20 and the electromagnetic magnet module 10 can attract and adhere to each other when the electromagnetic magnet module 10 is energized. The controller 30 controls whether the electromagnetic magnet module 10 is energized. When energized, the electromagnetic magnet module 10 generates a magnetic field, which causes the electromagnetic magnet module 10 to attract the ferromagnetic suction plate module 20, thereby achieving the attraction between the electromagnetic magnet module 10 and the ferromagnetic suction plate module 20.

[0047] Thus, this application provides a vehicle tailgate closing device, which includes an electromagnetic magnet module, a ferromagnetic suction plate module, and a controller. The electromagnetic magnet module is disposed on the rear panel of the vehicle, and the ferromagnetic suction plate module is disposed on the tailgate of the vehicle, with the ferromagnetic suction plate module and the electromagnetic magnet module aligned. The controller is used to control the electromagnetic magnet module to be energized so that the electromagnetic magnet module and the ferromagnetic suction plate module are attracted together.

[0048] Compared to the traditional method of closing the vehicle tailgate by driving it with a motor, this embodiment of the application sets up an electromagnetic magnet module on the rear panel of the vehicle and a ferromagnetic suction plate module on the tailgate. When the electromagnetic magnet module is energized, the electromagnetic magnet module and the ferromagnetic suction plate module are attracted to each other, eliminating the need to rely on a motor to drive the vehicle tailgate. This avoids the noise problem caused by motor operation and improves the user's vehicle experience.

[0049] Furthermore, referring to Figure 2 , Figure 2 As shown in the schematic diagram of the symmetrical structure, in the second embodiment of this utility model, there are two electromagnetic magnet modules 10, and the two electromagnetic magnet modules 10 are symmetrically distributed on the rear panel a of the vehicle with the longitudinal center plane of the vehicle as the plane of symmetry.

[0050] It should be noted that the longitudinal center plane of a vehicle is an imaginary plane that extends along the vehicle's front-to-back direction (i.e., the forward / reverse direction during normal driving). It is perpendicular to the ground and bisects the width of the vehicle. It is the core reference plane for vehicle design, assembly, and judging the symmetry of component positions (such as the installation and layout of components like the body structure, doors, and tailgate).

[0051] There are two electromagnetic magnet modules 10, which are symmetrically distributed on the rear panel a of the vehicle with the longitudinal center plane of the vehicle as the plane of symmetry. It can be understood that the two electromagnetic magnet modules 10 are respectively set on the left and right sides of the rear panel of the vehicle.

[0052] In this embodiment, there are two ferromagnetic suction plate modules 20, which are symmetrically distributed on the rear door b of the vehicle with the longitudinal center plane of the vehicle as the plane of symmetry.

[0053] There are also two ferromagnetic suction plate modules 20. The two ferromagnetic suction plate modules 20 are symmetrically distributed on the tailgate b of the vehicle with the longitudinal center plane L of the vehicle as the stacking axis. It can be understood that the two ferromagnetic suction plate modules 20 are respectively set on the left and right sides of the tailgate b of the vehicle, and each ferromagnetic suction plate module 20 is correspondingly set with an electromagnetic magnet module 10 on the same side.

[0054] It should be noted that the embodiments of this application do not limit the number of electromagnetic magnet module 10 and ferromagnetic suction plate module 20, but only limit the number of electromagnetic magnet module 10 and ferromagnetic suction plate module 20 to at least one, and the number of electromagnetic magnet module 10 and ferromagnetic suction plate module 20 to be the same.

[0055] Thus, by setting up multiple electromagnetic magnet modules 10 and multiple ferromagnetic suction plate modules 20 corresponding to the electromagnetic magnet modules 10, the electromagnetic magnet modules 10 generate a stronger overall attractive force when energized, and ensure that the back door b is subjected to balanced force, thereby improving the control efficiency of the back door b.

[0056] In this embodiment, refer to Figure 3 , Figure 3 The diagram shows a single attraction structure. The area of ​​the contact surface c2 of the ferromagnetic suction plate module 20 is greater than or equal to the area of ​​the contact surface c1 of the electromagnetic suction iron module 10.

[0057] The electromagnetic magnet module 10 and the ferromagnetic suction plate module 20 are located on the same side of the vehicle, and the contact surface c1 of the electromagnetic magnet module 10 and the contact surface c2 of the ferromagnetic suction plate module 20 are directly opposite and parallel.

[0058] It should be noted that the contact surface c2 of the ferromagnetic suction plate module 20 refers to the surface area on the ferromagnetic suction plate module 20 that directly contacts the contact surface of the electromagnetic magnet module 10 and is used to realize the magnetic adsorption function. It is the key surface of the ferromagnetic suction plate module 20 participating in the adsorption action. The contact surface c1 of the electromagnetic magnet module 10 refers to the surface area of ​​the electromagnetic magnet module 10 that generates a magnetic field after being energized and adsorbs with the ferromagnetic suction plate module 20. It is the core surface of the electromagnetic magnet module 10 realizing the adsorption function. With the longitudinal center plane of the vehicle as the reference (a virtual plane that symmetrically bisects the vehicle), the electromagnetic magnet module 10 and the ferromagnetic suction plate module 20 are located on the same side of this plane, ensuring that they have the basic layout conditions for physical contact and adsorption.

[0059] The area of ​​the contact surface c2 of the ferromagnetic suction plate module 20 is greater than or equal to the contact surface c1 of the electromagnetic suction plate module 10. That is, through design specifications or actual measurement, it is ensured that the contact surface c2 can completely accommodate the contact surface c1 in terms of spatial coverage, avoiding localized force and suction failure due to an insufficiently small contact surface. The electromagnetic suction plate module 10 and the ferromagnetic suction plate module 20 are located on the same side of the vehicle, and the contact surface c1 of the electromagnetic suction plate module 10 and the contact surface c2 of the ferromagnetic suction plate module 20 are directly opposite and parallel to each other. This ensures that when the electromagnetic suction plate module 10 is energized, the contact surface c1 of the electromagnetic suction plate module 10 is in contact with the contact surface c2 of the ferromagnetic suction plate module 20, and the contact surface c1 of the electromagnetic suction plate module 10 is completely covered by the contact surface c2 of the ferromagnetic suction plate module 20.

[0060] Thus, in this embodiment of the application, by correspondingly setting the electromagnetic magnet module 10 and the ferromagnetic suction plate module 20 on the same side of the vehicle, and limiting the area of ​​the contact surface c2 of the ferromagnetic suction plate module 20 to be greater than or equal to the contact surface c1 of the electromagnetic magnet module 10, it is ensured that when the electromagnetic magnet module 10 is energized, the contact surface c1 of the electromagnetic magnet module 10 can be in contact with the contact surface c2 of the ferromagnetic suction plate module 20, and the contact surface c1 of the electromagnetic magnet module 10 is completely covered by the contact surface c2 of the ferromagnetic suction plate module 20, thereby making full use of the attraction force of the contact surface c1.

[0061] In this embodiment, the electromagnetic magnet module 10 includes an electromagnetic magnet 101 and a first mounting base 102;

[0062] The first mounting base 102 is mounted on the rear panel a of the vehicle by fasteners, and the electromagnetic magnet 101 is fixed to the first mounting base 102.

[0063] It should be noted that fasteners can be screws and nuts.

[0064] The electromagnetic magnet module 10 includes an electromagnetic magnet 101 and a mounting base (hereinafter referred to as the first mounting base 102 for distinction) for fixing the electromagnetic magnet 101. The electromagnetic magnet 101 is fixed to the first mounting base 102, and the first mounting base 102 is mounted to the rear panel a of the vehicle by fasteners. The magnetic attraction surface c1 of the electromagnetic magnet module 10 refers to the magnetic attraction surface of the electromagnetic magnet 101, and the electromagnetic magnet module 10 can be considered as an assembly, that is, the electromagnetic magnet 101 and the first mounting base 102 are assembled into an assembly.

[0065] In this embodiment, the electromagnetic magnet module 10 further includes a power interface 103, which is used to connect to the vehicle's power supply.

[0066] The controller 30 is used to control the power circuit of the electromagnetic magnet module 10 to be turned on when it receives a stable half-lock signal triggered by the tailgate b of the vehicle, so that the electromagnetic magnet module 10 is attracted to the ferromagnetic suction plate module 20 under the action of the magnetic field.

[0067] It should be noted that the type of controller 30 is not limited in the embodiments of this application. For example, controller 30 can be a POT (Potentiometer Controller) controller or a domain controller integrated on the vehicle tailgate b.

[0068] The electromagnetic magnet module 10 also includes a power interface 103 for connecting to the vehicle's power supply to power the electromagnetic magnet 101. Specifically, the power interface 103 can be connected to a wiring harness to connect to the vehicle's wiring harness, allowing the vehicle's power supply to power the electromagnetic magnet module 10. The controller 30 operates as follows: after detecting and stably receiving a half-lock signal triggered when the vehicle's tailgate is closed to half-lock for 30ms, it considers a stable half-lock signal received. In response to this stable half-lock signal, it controls the power circuit of the electromagnetic magnet module 10 to be turned on, so that the electromagnetic magnet 101 generates an attraction force under the action of the magnetic field, attracting the ferromagnetic suction plate module 20.

[0069] In one feasible implementation, when the vehicle is in the closed tailgate state, the electromagnetic magnet module 10 is in a de-energized state and has no attraction force; when the vehicle is in the tailgate unlocking process, the electromagnetic magnet module 10 is also in a de-energized state and has no attraction force; when the vehicle is in the tailgate locking process, after the user closes the tailgate to a half-locked state for a period of time, the controller 30 controls the power circuit of the electromagnetic magnet module 10 to be turned on, so that the electromagnetic magnet module 10 generates an attraction force under the action of the magnetic field, attracting the ferromagnetic suction plate module 20, realizing the tailgate attraction, triggering the full lock signal, and after the full lock signal is stably triggered for a period of time, controlling the electromagnetic magnet module 10 to be de-energized.

[0070] In another feasible implementation, the embodiments of this application also include control strategies for different scenarios, such as a demagnetization priority strategy, an anti-tampering strategy, and a real-vehicle calibration principle. Specifically, the demagnetization priority strategy is as follows: when the reaction force of the tailgate b is too large or the engagement timeout is exceeded, causing the tailgate to fail to engage effectively and fail to trigger the full lock signal, an error is output to the vehicle display screen, and the fault code is read through the message to identify the current fault cause. At the same time, the electromagnetic magnet 101 is de-energized. The anti-tampering strategy is as follows: after the tailgate b is opened and closed multiple times consecutively within a preset time, the electromagnetic magnet 101 is not energized for the next opening and closing of the tailgate b, i.e., manual opening and closing is required. The real-vehicle calibration principle is as follows: the electromagnetic engagement voltage and engagement time need to be calibrated through a real vehicle. The calibration conditions include high and low temperatures, uphill and downhill slopes, and upper and lower limit samples to ensure that the tailgate b can be effectively closed and the opening and closing quality is guaranteed.

[0071] In this embodiment, the ferromagnetic suction plate module 20 includes a ferromagnetic suction plate 201 and a second mounting base 202;

[0072] The second mounting base 202 is mounted on the vehicle tailgate b by fasteners, and the ferromagnetic suction plate 201 is fixed to the second mounting base 202.

[0073] The ferromagnetic suction plate module 20 includes a ferromagnetic suction plate 201 and a mounting base (hereinafter referred to as the second mounting base 202 for distinction) for fixing the ferromagnetic suction plate 201. The ferromagnetic suction plate 201 is fixed on the second mounting base 202, and the second mounting base 202 is installed on the tailgate b of the vehicle by fasteners. The mating surface c2 of the ferromagnetic suction plate module 20 refers to the matching surface between the ferromagnetic suction plate 201 and the electromagnetic magnet 101. The ferromagnetic suction plate 201 is made of ferromagnetic material, and both the ferromagnetic suction plate 201 and the electromagnetic magnet 101 are oblong.

[0074] In this embodiment, reference Figure 4 , Figure 4 The diagram shows the structure of the electromagnetic magnet module 10. The electromagnetic magnet module 10 also includes a buffer pad 104, which is disposed on the attraction surface c1 of the electromagnetic magnet module 10.

[0075] The electromagnetic magnet module 10 also includes a buffer pad 104, which is disposed on the attraction surface c1 of the electromagnetic magnet 101 to prevent rigid collision damage between the electromagnetic magnet 101 and the ferromagnetic suction plate 201, to avoid noise during contact, and to improve attraction stability.

[0076] In this embodiment, both the contact surface c1 of the electromagnetic magnet module 10 and the contact surface c2 of the ferromagnetic suction plate module 20 are chrome-plated.

[0077] The magnetic attraction surface c1 of the electromagnetic attraction module 10 and the contact surface c2 of the ferromagnetic attraction plate module 20 are both chrome-plated to improve the corrosion resistance, wear resistance and quality of the magnetic attraction surface c1 and the contact surface c2.

[0078] Thus, compared to the traditional self-closing tailgate lock structure, which has high requirements for the actual vehicle condition and tailgate lock matching accuracy, resulting in difficulty in software strategy matching (high control accuracy requirements lead to high control difficulty), and the possibility of jamming or failure to close, the tailgate lock used in this embodiment can still be a low-end non-self-closing lock (with lower control accuracy than the self-closing lock). Its structure is simple and can avoid the problems of tailgate lock jamming or failure to close, including the risk of the mechanism not returning to its original position or not returning completely after closing. At the same time, it avoids motor drive noise and improves the quality of closing the door.

[0079] Furthermore, this application also provides a vehicle. The vehicle in this application embodiment includes a tailgate closing device as described in any of the preceding claims.

[0080] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A vehicle tailgate suction device, characterized in that, The vehicle tailgate suction device includes: An electromagnetic magnet module is mounted on the rear panel of the vehicle. A ferromagnetic suction plate module is disposed on the tailgate of the vehicle, and the ferromagnetic suction plate module is aligned with the electromagnetic magnet module. A controller is used to energize the electromagnetic magnet module so that the electromagnetic magnet module and the ferromagnetic suction plate module are attracted to each other.

2. The vehicle tailgate suction device as described in claim 1, characterized in that, The number of electromagnetic magnet modules is two, and the two electromagnetic magnet modules are symmetrically distributed on the rear panel of the vehicle with the longitudinal center plane of the vehicle as the plane of symmetry.

3. The vehicle tailgate suction device as described in claim 2, characterized in that, The number of ferromagnetic suction plate modules is two, and the two ferromagnetic suction plate modules are symmetrically distributed on the rear door of the vehicle with the longitudinal center plane of the vehicle as the plane of symmetry.

4. The vehicle tailgate suction device as described in claim 3, characterized in that, The area of ​​the contact surface of the ferromagnetic suction plate module is greater than or equal to the area of ​​the contact surface of the electromagnetic suction iron module. The electromagnetic magnet module and the ferromagnetic suction plate module are located on the same side of the vehicle, and the contact surface of the electromagnetic magnet module and the contact surface of the ferromagnetic suction plate module are directly opposite each other and parallel.

5. The vehicle tailgate suction device as described in claim 1, characterized in that, The electromagnetic magnet module includes an electromagnetic magnet and a first mounting base; The first mounting bracket is mounted to the rear panel of the vehicle by fasteners, and the electromagnetic magnet is fixed to the first mounting bracket.

6. The vehicle tailgate suction device as described in claim 1, characterized in that, The electromagnetic magnet module also includes a power interface, which is used to connect to the vehicle's power supply. The controller is used to control the power circuit of the electromagnetic magnet module to be turned on when it receives a stable half-lock signal triggered by the tailgate of the vehicle, so that the electromagnetic magnet module is attracted to the ferromagnetic suction plate module under the action of the magnetic field.

7. The vehicle tailgate suction device as described in claim 1, characterized in that, The electromagnetic magnet module also includes a buffer pad, which is disposed on the attraction surface of the electromagnetic magnet module.

8. The vehicle tailgate suction device as described in claim 1, characterized in that, The ferromagnetic suction plate module includes a ferromagnetic suction plate and a second mounting base; The second mounting bracket is installed on the vehicle tailgate by fasteners, and the ferromagnetic suction plate is fixed to the second mounting bracket.

9. The vehicle tailgate suction device as described in claim 1, characterized in that, Both the contact surface of the electromagnetic magnet module and the contact surface of the ferromagnetic suction plate module are chrome-plated.

10. A vehicle, characterized in that, The vehicle includes a vehicle tailgate closing device as described in any one of claims 1 to 9.

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