Door check and vehicle

Abstract

A door stopper and a vehicle, which comprise a mounting seat, a limiting arm and a limiting box. The mounting seat is mounted on a vehicle body, the limiting box is mounted on a vehicle door, and the limiting box is provided with an elastic assembly. One end of the limiting arm is hingedly connected with the mounting seat. The limiting arm is provided with a first slope surface. In a closed state of the vehicle door, the elastic assembly is relatively slidably abutted with the first slope surface, so that in a sliding process of the elastic assembly along the first slope surface when the vehicle door is unlocked, the limiting box can be slid relative to the limiting arm. In the application, by providing the first slope surface on the limiting arm, when the vehicle door is unlocked, the elastic assembly can slide along the first slope surface by the elastic force of the elastic assembly, and can drive the limiting box to slide relative to the limiting arm, and then drive the vehicle door to rotate away from the vehicle body by the limiting box, so as to provide assistance for the vehicle door to pop up, and the height of the vehicle door to pop up can reach the expected height.

Description

Technical Field

[0001] This application relates to the field of transportation technology, specifically to a door limiter and a vehicle. Background Technology

[0002] Door limiters are one of the key components in a vehicle. Their function is to allow the door to open to the appropriate degree and maintain it in the corresponding position.

[0003] Door limiters are used in electric spring doors. The door edges have sealing strips that compress when the door is closed. When the door is unlocked, the sealing strip's elasticity allows the door to spring back to a certain height, making it easier for the user to open the door further. However, if the door sealing strip is compressed for a long time or used excessively, its elasticity decreases, making it difficult to spring the door back to the desired height, thus reducing the user experience. Utility Model Content

[0004] In view of this, this application provides a door limiter and a vehicle to solve the problem in the prior art where the door sealing strip loses its elasticity after being squeezed for a long time or after prolonged use, making it difficult to pop the door up to the desired height.

[0005] In a first aspect, embodiments of this application provide a door limiter, which includes a mounting base, a limiting arm, and a limiting box. The mounting base is mounted on the vehicle body, and the limiting box is mounted on the door, with an elastic component mounted on the limiting box. One end of the limiting arm is rotatably connected to the mounting base. The limiting arm is provided with a first slope, and when the door is closed, the elastic component slidably abuts against the first slope, so that when the door is unlocked, the elastic component can drive the limiting box to slide relative to the limiting arm as it slides along the first slope.

[0006] In this application, by setting a first slope on the limiting arm, when the door is unlocked, the elastic component can slide along the first slope due to its own elasticity, and can drive the limiting box to slide relative to the limiting arm. This, in turn, causes the limiting box to rotate the door away from the vehicle body, providing assistance for the door to pop up and helping it reach the desired pop-up height. Therefore, in this application, the door can pop up without relying on the elasticity of the sealing strip, solving the problem that the door sealing strip's elasticity decreases after long-term compression or prolonged use, making it difficult to pop the door to the desired height.

[0007] In one possible implementation, the limiting arm includes an initial position and an ending position. The initial position of the limiting arm has a first slope, which is inclined in the direction from the initial position to the ending position. The thickness of the limiting arm corresponding to the first slope gradually decreases in the direction from the initial position to the ending position. In this embodiment, the inclined first slope allows the elastic component to slide automatically along it when the door is unlocked. Simultaneously, it causes the limiting box to move relative to the limiting arm in the direction from the initial position to the ending position. This, in turn, causes the door to rotate away from the vehicle body, thus providing assistance for the door to spring away from the vehicle body at the moment of unlocking.

[0008] In one possible implementation, the limiting arm has a protrusion, and the first slope is the surface of the protrusion near the termination position. The protrusion can be integrally formed during the manufacturing process of the limiting arm, thereby facilitating processing, saving costs, and improving the reliability of the structure.

[0009] In one possible implementation, the first slope is an inclined or curved surface, which allows the first slope to be tilted so that the elastic component can slide on the first slope by its own elastic force.

[0010] In one possible implementation, the first slope is disposed on opposite sides of the limiting arm along the height direction of the door limiter. Thus, the cooperation between the first slope on both sides of the limiting arm and the corresponding elastic components ensures the stability of the door movement and the reliability of the structure.

[0011] In one possible implementation, the limiting arm is provided with a second slope, which is inclined from the initial position to the termination position, and the thickness of the limiting arm corresponding to the second slope gradually increases from the initial position to the termination position. The second slope and the first slope form a continuous surface. A recess can be formed between the first and second slopes. When the door is unlocked, the elastic component can slide along the first slope to the bottom of the recess formed between the first and second slopes. Due to the limiting effect of the second slope, when the door is not subjected to external force, the elastic component can remain at the bottom of the recess, meaning the door bounces outward to a certain height and can remain in the bounced position, allowing the user to continue manually opening the door. When the user needs to continue opening the door, an appropriate external force can be applied to the door to overcome the resistance of the elastic component sliding on the second slope, causing the elastic component to slide out of the recess. Thus, the user can feel a certain damping force while continuing to open the door from the bounced position, improving the door operation experience.

[0012] In one possible implementation, the elastic component includes a slider and an elastic element. The slider is slidably disposed within the limiting box, abutting against the limiting arm. When the limiting box is in the initial position, the slider abuts against the first slope. Both ends of the elastic element abut against the limiting box and the slider, respectively. After the limiting box and the limiting arm are assembled, the elastic element can remain compressed, thereby using the elastic force generated by the elastic element to press the slider against the limiting arm, ensuring that the slider and the limiting arm always maintain mutual abutment.

[0013] In one possible implementation, the end face of the slider that abuts against the limiting arm is an arc-shaped surface, which can ensure that the slider and the limiting arm do not jam when moving relative to each other, thereby ensuring the smoothness of the door opening or closing and improving the user experience.

[0014] In one possible implementation, at least one recess is provided on the limiting arm between the initial position and the ending position. When the elastic component slides to the recess, it extends, allowing its end to enter the recess. The sidewall of the recess provides significant resistance to the sliding of the elastic component, thus positioning it at the recess and setting the door to its current opening degree. By appropriately increasing the force applied to the door, the door can continue sliding relative to the limiting arm, while the elastic component can move out of the recess and continue sliding along the surface of the limiting arm, allowing the door to continue opening or closing. Therefore, the cooperation of the elastic component and the recess achieves precise positioning of the door opening degree, improving the user's experience in opening and closing the door.

[0015] In one possible implementation, the limiting arm includes a support member and a protective member. The protective member wraps around the outside of the support member and has the first slope and the recessed portion. The support member can be made of steel or a steel core, and has a certain length to allow the limiting box to slide along its length. The protective member can also be called a plastic coating layer; that is, the protective member can be integrated with the support member through injection molding, allowing the protective member to completely cover the surface of the support member. This avoids wear and noise caused by contact between the rigid support member and the elastic component; it also facilitates the manufacture of the protective member into the desired shape for use with the elastic component.

[0016] In one possible implementation, a limiting portion is provided at the end position of the limiting arm, and the projection of the limiting portion at least partially coincides with the projection of the limiting box along the sliding direction of the limiting box. The sliding direction of the limiting box is parallel to the aforementioned first direction. The limiting portion can be a structure protruding along the thickness direction of the limiting arm, allowing the limiting box to contact and be limited when it slides to the end position, thereby preventing the limiting box from slipping off the limiting arm.

[0017] Secondly, this application also provides a vehicle, comprising a body, a door, and the door limiter provided in the first aspect of this application, wherein a limiting box in the door limiter is connected to the door, and a mounting seat in the door limiter is connected to the body. The vehicle including the door limiter provided in the first aspect of this application has similar technical effects to the aforementioned door limiter, and will not be described in detail here.

[0018] In one possible implementation, a resilient seal is provided on the edge of the door, facing the vehicle body. This resilient seal provides an elastic force to the door away from the vehicle body. When the door is locked, the resilient seal is clamped between the door and the vehicle body and undergoes elastic deformation. When the door is unlocked, the resilient seal provides an elastic force to the door away from the vehicle body to push the door open, thereby helping the door to spring up a certain height upon unlocking.

[0019] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A partial schematic diagram of the vehicle provided in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the structure of the door limiter provided in the embodiments of this application;

[0023] Figure 3 This is a front view of a door limiter provided in one embodiment of this application;

[0024] Figure 4 This is a front view of the elastic component and the limiting arm cooperating in a door limiter according to an embodiment of this application;

[0025] Figure 5 This is a front view of the limiting arm in a door limiter provided in one embodiment of this application;

[0026] Figure 6 for Figure 5 Enlarged view at point A;

[0027] Figure 7 A mechanical schematic diagram of the door limiter provided in this application at the first slope position;

[0028] Figure 8 A partial view of the door limiter provided in the embodiment of this application at the position where the elastic component engages with the first slope surface;

[0029] Figure 9 The front view of the door limiter provided in the embodiment of this application at the position where the elastic component mates with the first slope surface;

[0030] Figure 10 A cross-sectional view of the limiting arm in the door limiter provided in an embodiment of this application;

[0031] Figure 11 A front view of a door limiter provided in another embodiment of this application.

[0032] Figure label:

[0033] 1-Mounting base;

[0034] 2-Limiting arm; 2a-Supporting component; 2b-Protective component; 21-Protrusion; 211-First slope; 22-Second slope; 23-Recess; 24-Limiting part; 25-Flat surface;

[0035] 3-Limit box;

[0036] 4-Elastic component; 41-Slider; 42-Elastic element;

[0037] 5-Pin;

[0038] 100 - Body;

[0039] 200 - Door; 210 - Flexible seal;

[0040] 300-Door limiter;

[0041] M1 - Initial position; M2 - Ending position;

[0042] X1 - First direction; Y1 - Thickness direction. Detailed Implementation

[0043] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0044] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0045] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0046] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0047] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] With the continuous advancement of automotive technology and the increasing demand from consumers for intelligent vehicles, electric spring doors are becoming widely used in vehicle access control systems and have become an important intelligent feature. When a user needs to open the door, they can place their hand on the door handle. When a sensor on the door handle triggers an opening signal, the control unit receives the signal and controls the movement of a motor or electromagnetic device to unlock the door. For example, the vehicle may have a locking structure for locking the door, which can be controlled by a motor or electromagnetic device. In one embodiment, the locking structure may include a bolt and a pawl. When the bolt and pawl engage, the door is locked and cannot be opened. When the motor controls the bolt or pawl to disengage, the door is unlocked and can be opened.

[0049] When the car door is unlocked, it can spring outwards to a certain height via a corresponding structure, allowing the user to manually open the door further. The spring-up height refers to the distance the door springs away from the vehicle body, that is, the distance the door springs relative to the vehicle body in the opening direction; this interpretation applies to all subsequent references to door spring-up height. In some embodiments, an elastic seal may be provided at the edge of the door; exemplarily, this elastic seal may be a sealing strip. When the door is closed, the locking structure locks the door in the closed state, and the sealing strip can be clamped between the door and the vehicle body. The sealing strip can elastically deform after being clamped. When the vehicle is unlocked, the door loses the constraint of the locking structure, the sealing strip returns to its elastic deformation, and the door can spring outwards to a certain height through the elastic force of the sealing strip, thus facilitating the user to open the door further.

[0050] However, when the car door is kept closed for a long time or the weatherstripping is used for too long, the performance of the weatherstripping will deteriorate. For example, the weatherstripping's aging resistance and elasticity will decrease. This will reduce the force of the weatherstripping on the door when it pops up, and the door may not pop up to the desired height. This can easily cause the locking mechanism to not be able to unlock completely. For example, when the door does not reach the desired pop-up height, the pawl and the latch may not completely separate, causing the door to remain restricted by the pawl and the latch, which will cause the door to jam and prevent the user from opening the door further, thus reducing the user experience.

[0051] To address the issue of decreased elasticity in weatherstripping after prolonged use, a core insert can be embedded inside the strip. This core insert can be a rod-shaped rubber structure, allowing it to compensate for the reduced elasticity of the weatherstripping. Alternatively, increasing the thickness of the weatherstripping can also improve elasticity. However, even with these methods, the problem of weakened elasticity due to aging of the core insert and the weatherstripping after long-term use persists, failing to effectively solve the issue of insufficient spring-back height of the weatherstripping against the car door.

[0052] This application provides a door limiter that can be applied to various vehicles, such as sedans, SUVs, multi-purpose vans, sports cars, pickup trucks, or trucks. This embodiment does not limit the type of vehicle. Figure 1 A partial schematic diagram of the vehicle provided in the embodiments of this application, such as... Figure 1As shown, the vehicle has a body 100 and a door 200, which can rotate to open or close relative to the body 100. The door 200 can be positioned at its opening angle by a door limiter 300. Simultaneously, the door limiter 300 allows the door 200 to spring outwards a certain height towards the body 100 when unlocked, facilitating further manual opening by the user. An elastic seal 210 is provided on the side of the door 200 facing the body 100. This elastic seal 210 can be the aforementioned sealing strip. The elastic seal 210 provides elastic force through its own elastic deformation, which helps the door 200 spring out a certain height when unlocked.

[0053] Figure 2 This is a schematic diagram of the structure of the door limiter 300 provided in the embodiments of this application, as shown below. Figure 2 As shown, the door limiter 300 includes a mounting base 1, a limiting arm 2, and a limiting box 3. The mounting base 1 can be installed on the vehicle body 100. The limiting arm 2 is hinged to the mounting base 1; for example, the limiting arm 2 can be hinged to the mounting base 1 via a pin 5, and the limiting arm 2 can rotate relative to the mounting base 1 via the pin 5. The limiting box 3 is connected to the door 200; for example, the limiting box 3 can be bolted to the door 200, and the limiting box 3 can move synchronously with the door 200. Simultaneously, the limiting box 3 and the limiting arm 2 can slide relative to each other. During the opening or closing of the door 200, the door 200, the limiting box 3, and the limiting arm 2 can rotate synchronously relative to the mounting base 1, while the limiting box 3 can slide relative to the limiting arm 2.

[0054] The limiting arm 2 includes an initial position M1 and an ending position M2, and the limiting box 3 can slide between the initial position M1 and the ending position M2. When the door 200 is closed, the limiting box 3 is located at the initial position M1 of the limiting arm 2, and when the door 200 is opened to its maximum opening degree, the limiting box 3 is located at the ending position M2 of the limiting arm 2.

[0055] Figure 3 This is a front view of a door limiter provided in one embodiment of this application, as shown below. Figure 3 As shown, the limiting box 3 is provided with an elastic component 4, which abuts against the limiting arm 2.

[0056] The elastic component 4 has the ability to elastically deform, allowing it to extend and retract along the height direction of the door limiter, which is parallel to the thickness direction Y1 of the limiting arm 2. The elastic component 4 can be elastically deformable as a whole, or only a portion of it can be elastically deformable. Through its own elastic force, the elastic component 4 maintains contact with the limiting arm 2; that is, during the sliding process of the limiting box 3 relative to the limiting arm 2, the elastic component 4 remains in contact with the limiting arm 2 at all times.

[0057] In one embodiment, such as Figure 3 As shown, the elastic component 4 may include a slider 41 and an elastic element 42. The slider 41 is slidably disposed in the limiting box 3 and abuts against the limiting arm 2. The elastic element 42 may be a spring, with its two ends abutting against the limiting box 3 and the slider 41, respectively. After the limiting box 3 and the limiting arm 2 are assembled, the elastic element 42 can remain in a compressed state, thereby using the elastic force generated by the elastic element 42 to press the slider 41 against the limiting arm 2, ensuring that the slider 41 and the limiting arm 2 always remain in abutting against each other.

[0058] The end face of the slider 41 that abuts against the limiting arm 2 is an arc-shaped surface, which ensures that the slider 41 and the limiting arm 2 do not get stuck when they move relative to each other, thereby ensuring the smoothness of the door opening or closing and improving the user experience.

[0059] Among them, such as Figure 3 As shown, at least one recess 23 is provided on the limiting arm 2 between the initial position M1 and the ending position M2. This recess 23 is an inwardly recessed structure on the limiting arm 2, such as a groove. During the opening of the car door, as the limiting box 3 slides relative to the limiting arm 2, the elastic component 4 can always maintain contact with the limiting arm 2 and can slide along the surface of the limiting arm 2. When the elastic component 4 slides to the position of the recess 23, the elastic component 4 extends, allowing its end to extend into the recess 23. Since the sidewall of the recess 23 will create a large resistance to the sliding of the elastic component 4, the elastic component 4 can be positioned at the position of the recess 23, that is, the car door can be positioned to the current opening degree. When the force of pushing the car door is appropriately increased, the car door can cause the limiting box 3 to continue sliding relative to the limiting arm 2. At the same time, the elastic component 4 can be removed from the recess 23 and can continue to slide along the surface of the limiting arm 2, realizing the continued opening or closing of the car door. Thus, through the cooperation of the elastic component 4 and the recessed part 23, the opening degree of the car door is positioned, while improving the user's operating experience of opening or closing the car door.

[0060] The recess 23 can be provided with one or more. When there are two or more recesses 23, the door can be positioned under multiple opening degrees, which improves the user's choice of door opening degree and enhances the user experience.

[0061] The surface of the recess 23 can be arc-shaped, which makes it easier for the elastic component 4 to slide into the recess 23 and also makes it easier for the elastic component 4 to slide out of the recess 23, which helps to avoid jamming and improves the user experience.

[0062] Figure 4 This is a front view of the elastic component 4 and the limiting arm 2 cooperating in a door limiter according to an embodiment of this application, as shown. Figure 4 As shown in the previous explanation, the initial position M1 is the position where the limiting arm 2 and the elastic component 4 cooperate when the door is closed. If the surface or cross-section of the limiting arm 2 at the initial position M1 is a plane 25, then when the door is unlocked, there will be virtually no force between the elastic component 4 and the limiting arm 2 in the direction from the initial position M1 to the final position M2, and the door limiter cannot cause the door to spring away from the vehicle body through the cooperation of the elastic component 4 and the limiting arm 2.

[0063] In view of this, this application makes further improvements to the structure of the limiting arm 2. Figure 5 This is a front view of the limiting arm 2 in a door limiter provided in one embodiment of this application, as shown. Figure 5 As shown, a first slope 211 is provided at the initial position M1 of the limiting arm 2. The first slope 211 is inclined from the initial position M1 to the end position M2, and the thickness of the limiting arm 2 corresponding to the first slope 211 gradually decreases from the initial position M1 to the end position M2. For ease of explanation, the direction from the initial position M1 to the end position M2 can be defined as the first direction X1. When the limiting box 3 is in the initial position M1, the slider 41 abuts against the first slope 211, and the elastic force provided by the elastic element 42 can make the slider 41 slide along the first slope 211, thereby providing assistance for opening the car door.

[0064] The first slope 211 is an inclined surface, which can be either a sloping surface or an arc surface. Figure 6 for Figure 5 The enlarged view at point A, as shown Figure 6 As shown, taking the first slope 211 as an example, and for ease of explanation, a two-dimensional coordinate system can be established at the first slope 211. The Y2 axis of the coordinate system is parallel to the thickness direction Y1 of the limiting arm 2, and the X2 axis of the coordinate system is parallel to the first direction X1 mentioned above. The X2 axis and Y2 axis can divide the first quadrant K1, the second quadrant K2, the third quadrant K3, and the fourth quadrant K4. The first slope 211 is inclined from the first quadrant K1 to the fourth quadrant K4.

[0065] When the elastic component 4 presses against the first slope 211, a component force is generated on the first slope 211. This component force enables the elastic component 4 to slide along the first slope 211, thereby helping the door to pop up when unlocked. The following will explain this in detail with reference to the mechanical diagram.

[0066] Figure 7 A mechanical schematic diagram of the door limiter provided in this application at the position of the first slope 211 is shown below. Figure 7As shown, the elastic component 4 presses the first slope 211 with a pressure F along the thickness direction Y1 of the limiting arm 2. The pressure F has a first component F1 and a second component F2. The direction of the first component F1 is perpendicular to the first slope 211, and the direction of the second component F2 is parallel to the first slope 211, with the direction of the second component F2 pointing from the first quadrant K1 to the fourth quadrant K4. When the elastic component 4 slides along the first slope 211, it generates a sliding friction force Fμ. The direction of the sliding friction force Fμ is parallel to the first slope 211, and the direction of the sliding friction force Fμ points from the fourth quadrant K4 to the first quadrant K1, that is, the direction of the sliding friction force Fμ is opposite to the direction of the second component F2. By adjusting the coefficient of friction between the elastic component 4 and the first slope 211, the second component force F2 can be made greater than the sliding friction force Fμ. That is, the difference between the second component force F2 and the sliding friction force Fμ can be defined as the resultant force F3. Thus, through the action of the resultant force F3, the elastic component 4 can overcome the sliding friction force Fμ and slide along the first slope 211. That is, at the moment the door is unlocked, the resultant force F3 can make the elastic component 4 automatically slide along the first slope 211. In other words, the elastic component 4 can drive the limiting box 3 to slide relative to the limiting arm 2. During the sliding process of the limiting box 3, the door can be driven to rotate relative to the body, thereby realizing the automatic pop-up of the door outward. At the same time, with the elastic force of the elastic seal on the edge of the door, the height of the door popping up can be guaranteed to be the desired height. Moreover, the force of the elastic component 4 driving the door to rotate and the elastic force of the elastic seal on the door both occur simultaneously at the moment the door is unlocked, so that there will be no jerking due to different forces on the door occurring in sequence.

[0067] In one specific embodiment, the angle between the first slope 211 and the first direction X1 is θ, F1 = Fcosθ, F2 = Fsinθ, F3 = F2 - μF1 = Fsinθ - μFcosθ = F(sinθ - μcosθ), where μ is the coefficient of friction between the elastic component 4 and the limiting arm 2. For example, taking the material at the contact position between the elastic component 4 and the limiting arm 2 as polyoxymethylene (POM) and the material of the first slope 211 as polyhexamethylene adipamide (PA66), the coefficient of friction μ between POM and PA66 materials under the action of lubricating grease is approximately 0.13. When θ = 10°, it can be calculated using the above formula that F3 = 0.0456F. Therefore, F3 > 0. Through the action of F3, the elastic component 4 can slide along the first slope 211, which can drive the limiting box 3 to move relative to the limiting arm 2 in the first direction X1. In turn, the limiting box 3 drives the door to rotate, thereby providing assistance for the door to pop up. This helps the door to pop up to the desired height. Moreover, compared with the aforementioned elastic seal, the cooperation structure between the elastic component 4 and the first slope 211 is less prone to aging and failure. After the door is closed for a long time or used frequently, the assistance generated by the cooperation between the elastic component 4 and the first slope 211 will not decrease, thus ensuring that the door can be provided with long-term effective pop-up assistance.

[0068] Figure 8 A partial view of the door limiter provided in this application embodiment at the position where the elastic component 4 mates with the first slope surface 211, as shown below. Figure 8 As shown, along the height direction of the door limiter, the first slope 211 can be provided on opposite sides of the limiting arm 2. As explained above, the height direction of the door limiter is parallel to the thickness direction Y1 of the limiting arm 2, meaning that the limiting arm 2 can have a first slope 211 on both sides of its thickness direction Y1. Correspondingly, two elastic components 4 can also be provided, and the two elastic components 4 correspond one-to-one with the two first slopes 211. The two first slopes 211 are symmetrically arranged, thereby ensuring the stability of the door movement and the reliability of the structure through the cooperation of the first slopes 211 on both sides of the limiting arm 2 and the corresponding elastic components 4.

[0069] like Figure 8As shown, the limiting arm 2 may be provided with a protrusion 21, and the first slope 211 is the surface of the protrusion 21 near the termination position M2. The protrusion 21 can be a raised structure formed on the limiting arm 2. The outer surface of such a raised structure can be an arc-shaped surface, a surface combining a plane and an arc-shaped surface, or a surface composed of at least two of the following: an inclined surface, an arc-shaped surface, and a plane. The key is to ensure that the surface of the raised structure near the termination position M2 is formed as an inclined first slope 211. This protrusion 21 can be integrally formed during the manufacturing process of the limiting arm 2, thereby facilitating processing, saving costs, and improving the reliability of the structure.

[0070] Figure 9 This is a front view of the door limiter provided in the embodiment of this application at the position where the elastic component 4 mates with the first slope surface 211, as shown below. Figure 9 As shown, a second slope 22 is provided on the limiting arm 2 between the first slope 211 and the termination position M2. The second slope 22 is inclined from the initial position M1 to the termination position M2, and the thickness of the limiting arm 2 corresponding to the second slope 22 gradually increases from the initial position M1 to the termination position M2. Taking the two-dimensional coordinate system established at the first slope 211 as a reference, the inclination direction of the second slope 22 is from the third quadrant K3 to the second quadrant K2. The second slope 22 and the first slope 211 form a continuous surface, meaning that the first slope 211 and the second slope 22 can form a complete and continuous surface, thereby ensuring that the elastic component 4 can move smoothly between the first slope 211 and the second slope 22 and avoiding jamming.

[0071] Among them, such as Figure 9 As shown, a recess 23 can be formed between the first slope 211 and the second slope 22. When the car door is unlocked, the elastic component 4 can slide along the first slope 211 to the bottom of the recess 23 formed between the first slope 211 and the second slope 22. Due to the limiting effect of the second slope 22, when the car door is not subjected to external force, the elastic component 4 can remain at the bottom of the recess 23, that is, the car door bounces outward to a certain height and can be maintained in the bounced position, so that the user can continue to manually open the car door. When the user needs to continue to open the car door, an appropriate external force can be applied to the car door to overcome the resistance of the elastic component 4 sliding on the second slope 22, so that the elastic component 4 slides out of the recess 23. Thus, the user can feel a certain damping force when continuing to open the car door in the bounced position, improving the car door operation experience.

[0072] Multiple recesses 23 can be provided along the first direction X1, so that the door can remain stable under different opening degrees.

[0073] Figure 10This is a cross-sectional view of the limiting arm 2 in the door limiter provided in the embodiment of this application, as shown below. Figure 10 As shown, the limiting arm 2 includes a support member 2a and a protective member 2b. The protective member 2b wraps around the outside of the support member 2a and has a first slope 211 and a recess 23. The support member 2a can be made of steel or a steel core, and has a certain length to allow the limiting box 3 to slide along its length. The protective member 2b can also be called a plastic coating layer; it can be integrated with the support member 2a through injection molding, allowing the protective member 2b to completely cover the surface of the support member 2a. This avoids wear and noise caused by the rigid support member 2a contacting the elastic component 4; it also facilitates the manufacture of the desired shape using the protective member 2b for mating with the elastic component 4.

[0074] The protective component 2b can be integrally formed with the aforementioned protrusion 21 during the molding process. For example, the protective component 2b and the protrusion 21 can be integrally formed by injection molding, which facilitates processing and manufacturing, saves costs, achieves structural integration, and improves structural reliability.

[0075] Figure 11 A front view of a door limiter provided in another embodiment of this application, as shown below. Figure 11 As shown, a limiting part 24 can be provided at the end position M2 of the limiting arm 2. Along the sliding direction of the limiting box 3, the projection of the limiting part 24 at least partially coincides with the projection of the limiting box 3. The sliding direction of the limiting box 3 is parallel to the aforementioned first direction X1. The limiting part 24 can be a structure that protrudes along the thickness direction Y1 of the limiting arm 2. When the limiting box 3 slides to the end position M2, the limiting box 3 can contact and be limited by the limiting part 24. Thus, the limiting part 24 can prevent the limiting box 3 from slipping off the limiting arm 2.

[0076] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A door limiter, characterized in that, include: Mounting bracket for installation on vehicle body; A limiting box for installation on a vehicle door, the limiting box being equipped with an elastic component; A limiting arm, one end of which is rotatably connected to the mounting base; the limiting arm is provided with a first slope, and when the door is closed, the elastic component can slide relative to the first slope so that when the door is unlocked, the elastic component can drive the limiting box to slide relative to the limiting arm as it slides along the first slope.

2. The door limiter according to claim 1, characterized in that, The limiting arm includes an initial position and an ending position. The initial position of the limiting arm is provided with a first slope. The first slope is inclined in the direction from the initial position to the ending position, and the thickness of the limiting arm corresponding to the first slope gradually decreases in the direction from the initial position to the ending position.

3. The door limiter according to claim 2, characterized in that, The limiting arm is provided with a protrusion, and the first slope is the surface of the protrusion near the termination position.

4. The door limiter according to claim 1 or 2, characterized in that, The first slope is an inclined plane or an arc surface.

5. The door limiter according to any one of claims 1-4, characterized in that, Along the height direction of the door limiter, the first slope is provided on opposite sides of the limiting arm.

6. The door limiter according to claim 2, characterized in that, The limiting arm is provided with a second slope, which is inclined in the direction from the initial position to the termination position, and the thickness of the limiting arm corresponding to the second slope gradually increases in the direction from the initial position to the termination position.

7. The door limiter according to claim 2, characterized in that, The elastic component includes a slider and an elastic element. The slider is slidably disposed in the limiting box. The slider abuts against the limiting arm. When the limiting box is in the initial position, the slider abuts against the first slope. The two ends of the elastic element abut against the limiting box and the slider, respectively.

8. The door limiter according to claim 7, characterized in that, The end face of the slider that abuts against the limiting arm is an arc-shaped surface.

9. The door limiter according to claim 2, characterized in that, The limiting arm has at least one recess located between the initial position and the termination position.

10. The door limiter according to claim 9, characterized in that, The limiting arm includes a support and a protective component. The protective component is wrapped around the outside of the support and has the first slope and the recessed portion.

11. The door limiter according to any one of claims 1-10, characterized in that, A limiting part is provided at the end position of the limiting arm, and the projection of the limiting part at least partially overlaps with the projection of the limiting box along the sliding direction of the limiting box.

12. A vehicle, characterized in that, The device includes a vehicle body, a vehicle door, and a door limiter as described in any one of claims 1-11, wherein a limiter box in the door limiter is connected to the vehicle door, and a mounting seat in the door limiter is connected to the vehicle body.

13. The vehicle according to claim 12, characterized in that, An elastic seal is provided on the edge of the door and on the side facing the vehicle body. The elastic seal is used to provide an elastic force to the door away from the vehicle body.

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