A compact structure welding cover plate assembly and a vehicle door handle comprising the same

Abstract

The utility model relates to vehicle door handle technical field especially a kind of compact structure welding cover plate assembly and the vehicle door handle containing it, comprising: upper cover plate, rotation is installed in handle body, and when its force rotation, the contact point post set on its cover plate body contact microswitch;Elastic member, it is embedded in the limiting mechanism of upper cover plate and when upper cover plate rotates and approaches handle body, the free end of elastic member is compressed with handle body contact;The limiting mechanism is set in the middle position of upper cover plate, contact point post is set in the both ends of upper cover plate, the microswitch is relatively fixedly installed with handle body and its position corresponds with the position of contact point post, when upper cover plate is not under external force, elastic member restores shape and drives upper cover plate to rotate away from handle body and realizes reset, for solving the technical problems, such as the welding cover plate assembly in the vehicle door handle in prior art generally existing large space occupation and poor stability and function failure due to unreasonable structure design.

Description

Technical Field

[0001] This utility model relates to the field of vehicle door handle technology, and in particular to a compact welded cover plate assembly and a door handle containing the assembly. Background Technology

[0002] The descriptions in this section are provided only as background information relating to this disclosure and do not constitute prior art.

[0003] The flip-up semi-recessed door handle is a widely used door handle design in electric vehicles, falling between traditional pull-out door handles and fully concealed pop-out or electronic door handles. When the door is closed and locked, most of the semi-recessed handle is embedded in the door panel, with only a small portion slightly protruding from or flush with the door surface. The flip-up design typically refers to the handle flipping upwards and then pulling backwards. Traditional flip-up semi-recessed door handles generally employ an electric opening mechanism and a mechanical backup mechanism. The electric opening is used for normal opening, while the mechanical backup opening is often used in emergency situations where the electric opening fails, requiring manual flipping of the door to open it.

[0004] Existing technology discloses a semi-concealed car door handle switch, utility model patent with announcement number CN222281822U. It discloses a main body, with limiting mechanisms fixedly installed on both sides of the top of the main body. A pressing plate moves up and down on the top of the main body via the limiting mechanisms. A sealing mechanism is provided so that, during use, pressing the outer shell causes the pressing plate to drive a pressure block, triggering a micro switch. During this process, the sealing mechanism surrounds the pressure block, sealing the space between the pressure block and the micro switch, effectively preventing dust from entering the critical structure. Related technologies, including the above-mentioned technical solution, still... However, there are many problems, such as: in conventional cylindrical springs, adjacent coils are parallel, and during compression, the coils can only approach each other until they contact and coil together. The maximum compression stroke is limited by the spacing and number of coils. When subjected to large axial pressure, bending instability is likely to occur. In addition, the springs are installed on the micro switch accessories on both sides. However, as those skilled in the art know, micro switches or position sensors and other electronic wireless modules are usually tactile switches or Hall sensors, which are mainly used to detect whether the handle is pressed, flipped up, or reset. If a metal foreign object is close to the Hall element, it may cause short circuits, signal misinterpretation, or magnetic interference. Utility Model Content

[0005] The purpose of this utility model is to provide a compact welded cover plate assembly and a door handle containing the same, in order to solve the technical problems of large space occupation, poor stability, and easy functional failure due to unreasonable structural design in the welded cover plate assembly of the existing door handle.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A compact welded cover plate assembly, comprising:

[0008] The upper cover plate is rotatably mounted on the handle body, and when it is rotated under force, the contact post on the cover plate body contacts the micro switch.

[0009] An elastic element is embedded in the limiting mechanism of the upper cover plate, and when the upper cover plate rotates closer to the handle body, the free end of the elastic element contacts the handle body and is compressed.

[0010] The limiting mechanism is located in the middle of the upper cover plate, and the contact posts are located at both ends of the upper cover plate. The micro switch is fixedly installed relative to the handle body and its position corresponds to the position of the contact posts. When the upper cover plate is not subjected to external force, the elastic element restores its shape and drives the upper cover plate to rotate away from the handle body to achieve reset.

[0011] Furthermore, the elastic element is configured as a tower spring, the diameter of which gradually decreases from the bottom to the top.

[0012] Furthermore, the limiting mechanism includes a U-shaped groove composed of a left limiting side groove, a right limiting side groove, and a cover plate body. The U-shaped groove is used for the insertion and installation of the elastic element, and the bottom surface of the groove is a semi-circular supporting surface that matches the bottom side of the elastic element. The limiting mechanism also includes a limiting top block, which is disposed directly above the U-shaped groove and is used to limit the bottom side of the elastic element.

[0013] Furthermore, there are two contact posts, both of which are cross-shaped uprights, and stiffening plates are provided on both sides of the base of the contact post and the cover plate body.

[0014] Furthermore, the front partition of the handle body is provided with two limiting protrusions on the side that mates with the elastic element. A limiting transition platform is provided between the limiting protrusions and the front partition. The limiting transition platform is used to limit the spring ring on the side of the elastic element that is close to the limiting top block when the elastic element is compressed.

[0015] Furthermore, the limiting transition platform is configured as an arc surface, which matches the outer edge of the spring coil of the elastic element.

[0016] Furthermore, a rotating seat is provided on the front partition of the handle body, and a rotating column is provided on the cover body of the upper cover plate. The rotating seat and the rotating column are rotatably installed via a rotating shaft.

[0017] A door handle includes the aforementioned compact welded cover assembly, and further includes a bracket, a handle recess fixedly mounted relative to the bracket, and a handle body rotatably mounted on the bracket. A blocking portion is provided between the support arm of the handle body and the side arm of the bracket, and the blocking portion is used to provide damping force when the handle body rotates relative to the bracket.

[0018] Furthermore, there are two blocking parts, which are respectively arranged on the bracket at positions on both sides of the handle body. The blocking part is configured as a protrusion integrally formed with the handle body. The protrusion is configured as an L-shaped structure and includes a blocking free end and a blocking connecting end. The blocking connecting end is used to connect the blocking free end and the bracket. The angle between the blocking free end and the blocking connecting end is γ, where 30° < γ < 60°. The extension direction of the blocking free end is parallel to the rotation direction of the handle body support arm.

[0019] Furthermore, the blocking free end of the blocking part is interference-fitted with the support arm of the handle body, and the interference between the outer surface of the blocking free end and the support arm of the handle body is d, 0.2mm < d < 3mm.

[0020] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0021] (1). By setting an elastic element to limit its installation position and shape structure, combined with a limiting mechanism, this utility model not only ensures the stability of the process of applying force to the upper cover plate to rotate it to contact the micro switch, but also realizes the automatic reset of the upper cover plate after the force is removed. At the same time, it avoids the problem that the elastic element occupies a lot of space in the traditional structure and that the electronic components are prone to functional failure due to the position of the elastic element being too close, thus reducing the failure rate of the door handle.

[0022] (2). By setting specific details of the limiting mechanism, this utility model not only facilitates the installation of the elastic element, but also enables it to be fully positioned, greatly improving space utilization and making the structure more compact. By setting the limiting boss to cooperate with the elastic element, it helps to ensure that the elastic element is more stable when compressed and prevents it from bending and becoming unstable. At the same time, combined with the limiting transition platform, it further improves the working stability of the elastic element. By setting the blocking part on the bracket, it provides damping force to the handle body in the initial stage of rotation, which helps to prevent the handle body from rotating to open the car door in the event of a vehicle collision or other circumstances. At the same time, when opening the car door in an emergency, it assists the return spring between the handle body and the bracket to provide resistance, thereby increasing the force threshold when opening in an emergency and improving the safety performance of the car door handle in emergency opening. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the welded cover plate assembly of this utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the welded cover plate assembly of this utility model;

[0025] Figure 3 This is a schematic diagram of the main structure of the lower cover plate;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the lower cover plate;

[0027] Figure 5 This is a front view of the mounting structure of the handle body and the welded cover assembly;

[0028] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure at point AA;

[0029] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure at point BB;

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the handle body;

[0031] Figure 9 A three-dimensional structural diagram of the assembly of a car door handle;

[0032] Figure 10 A structural diagram illustrating a design that eliminates the handle recess and handle cover from the car door handle;

[0033] Figure 11 for Figure 10 Schematic diagram of the cross-sectional structure at point CC;

[0034] Figure 12 for Figure 11 A schematic diagram of the cross-sectional structure at point D.

[0035] In the diagram: 100, upper cover plate; 101, cover plate body; 102, limiting mechanism; 1021, left limiting side groove; 1022, limiting top block; 1023, right limiting side groove; 1024, limiting facade; 103, contact post; 104, rotating shaft; 105, rotating column; 200, elastic element; 300, handle body; 301, clearance cavity; 302, front partition; 303, limiting boss; 3031, limiting transition platform; 3032, rotating seat; 304, return spring; 305, rotating shaft; 400, bracket; 401, blocking part; 4011, blocking free end; 4012, blocking connecting end; 500, handle cover; 600, handle. Detailed Implementation

[0036] 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 protection scope of the present utility model.

[0037] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent.

[0038] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments 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. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0039] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0040] In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] To address the limitations of existing technologies, this embodiment provides a technical solution. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0043] This utility model addresses the common problems in existing upward-opening semi-concealed door handles, such as the large space occupied by the elastic element 200, leading to a large overall device space requirement, and the malfunction of electronic components due to improper installation of the elastic element 200. The present invention improves the structure of the elastic element 200 in the welded cover assembly, as detailed below:

[0044] See appendix Figure 1-4 A compact welded cover assembly is described. Here, the welded cover assembly generally refers to the one in which fingers need to be placed into the handle recess 600 and the clearance cavity 301 of the handle body 300 when opening the door handle. The welded cover assembly is installed in the clearance cavity 301 of the handle body 300. The upper cover 100 of the welded cover assembly is rotatably installed with the handle body 300. When force is applied to the upper cover 100, the upper cover 100 rotates and approaches the front partition 302 of the handle body 300. The contact post 103 on the upper cover 100 moves synchronously with the upper cover 100, passes through the through hole on the handle body 300, and touches the micro switch. The micro switch receives the signal and transmits the electrical signal to the electric unlocking mechanism of the door lock. As for how the micro switch and the electric unlocking mechanism are connected and function to achieve unlocking, it is a conventional technical means in this field and will not be described in detail here. The welded cover assembly in this application includes: an upper cover 100, rotatably mounted on a handle body 300, and when rotated under force, contact posts 103 on the cover body 101 contact a micro switch; there are two contact posts 103, each with a cross-shaped cross section, and stiffeners are provided on both sides of the base of each contact post 103 between it and the cover body 101. The purpose of these stiffeners is to improve the overall strength of the upper cover 100. During the opening process, the contact posts 103 need to repeatedly touch and apply force to the micro switch, and bending, displacement, or other deformation is not allowed. The stiffeners are designed to improve the strength of the contact posts 103. Specific details of the rotational installation of the upper cover 100 and the handle body 300 are as follows: see appendix. Figure 6 and 7 A rotating seat 3032 is provided on the front partition 302 of the handle body 300, and a rotating column 105 is provided on the cover body 101 of the upper cover plate 100. The rotating seat 3032 and the rotating column 105 are rotatably mounted through a rotating shaft 104. It can be understood that the center of the rotating seat 3032 and the rotating column 105 are both provided with a center hole for the rotating shaft 104 to pass through. The positions of the rotating seat 3032 and the rotating column 105 are staggered to prevent interference when they rotate.

[0045] See appendix Figure 1 and 2 and appendix Figure 6-7The elastic element 200 is embedded in the limiting mechanism 102 of the upper cover plate 100. When the upper cover plate 100 rotates closer to the handle body 300, the free end of the elastic element 200 contacts the handle body 300 and is compressed. The elastic element 200 is configured as a tower spring, the diameter of which gradually decreases from the bottom to the top. During compression: initially, the larger diameter spring coil usually begins to deform and has relatively low stiffness. As the compression stroke increases, the smaller diameter spring coil gradually participates in the deformation and is compacted. When the compression reaches a certain degree... When all the coils are tightly packed together, the stiffness increases dramatically. This characteristic of the spring makes the tower spring relatively soft during partial compression, absorbing shocks; and very stiff during full compression, providing strong support and preventing over-compression. Furthermore, due to its tapered structure, adjacent coils can nest together during compression, allowing it to be compressed to a very low height. Before reaching the coil-to-coil height, it provides a longer effective compression stroke than a cylindrical spring of the same height. Additionally, the tapered structure makes it more stable during compression, less prone to bending instability, and thus more stable. See appendix. Figure 3 and 4 The limiting mechanism 102 is located in the middle of the upper cover plate 100, and the contact post 103 is located at both ends of the upper cover plate 100. The placement at both ends can balance the force, making the upper cover plate 100 more stable when it is pressed. The micro switch is fixedly installed relative to the handle body 300 and its position corresponds to the position of the contact post 103. When the upper cover plate 100 is not subjected to external force, the elastic element 200 restores its shape and drives the upper cover plate 100 to rotate away from the handle body 300 to achieve reset. The limiting mechanism 102 includes a U-shaped groove composed of a left limiting side groove 1021, a right limiting side groove 1023, and a limiting vertical surface 1024 of the cover plate body 101. This U-shaped groove is used for the insertion and installation of the elastic element 200, and its bottom surface is a semi-circular support surface matching the bottom side of the elastic element 200. The limiting mechanism 102 also includes a limiting top block 1022, which is located directly above the U-shaped groove and used to limit the bottom side of the elastic element 200. It can be understood that the bottom surface of the U-shaped groove is a semi-circular arc surface, and the two sides are vertical grooves, facilitating the installation of the tower spring. The limiting top block 1022 limits the top of the tower spring. Because the tower spring has a certain degree of elasticity and can deform, there is no need to worry about the installation of the tower spring. Both the left limiting side groove 1021 and the right limiting side groove 1023 are designed as groove structures, i.e., they have retaining edges, which can block the tower spring. See appendix Figure 8The handle body 300 has two limiting protrusions 303 on the side of the front partition 302 that mates with the elastic element 200. A limiting transition platform 3031 is provided between the limiting protrusions 303 and the front partition 302. This limiting transition platform 3031 is used to limit the spring coil on the side of the elastic element 200 closest to the limiting top block 1022 when the elastic element 200 is compressed. The limiting transition platform 3031 is an arc surface that matches the outer edge of the spring coil of the elastic element 200. It can be understood that the limiting protrusions 303 are located inside the clearance cavity 301 of the handle body 300. The advantage of having two limiting protrusions 303 is that they act as reinforcing ribs, increasing the strength of the contact point between the front partition 302 and the spring coil; they also limit the spring coil. Furthermore, the limiting transition platform 3031 further improves the stability of the spring coil during compression.

[0046] See appendix Figure 9-12 A type of car door handle, specifically a flip-up semi-concealed car door handle, includes the aforementioned compact welded cover assembly, a bracket 400, a handle recess 600 fixedly mounted relative to the bracket 400, and a handle body 300 rotatably mounted on the bracket 400. It can be understood that the handle body 300 has two arms, both rotatably mounted on the bracket 400 and connected via a pivot 305 and a return spring 304. The return spring 304 is a torsion spring, and its function is to provide resistance to the rotation of the handle body 300 and to provide a return spring after the door is opened. To achieve a zero-reset force, a blocking part 401 is provided between the support arm of the handle body 300 and the side arm of the bracket 400. The blocking part 401 provides damping force when the handle body 300 rotates relative to the bracket 400. It can be understood that the blocking part 401 is located on the bracket 400 and on both sides of the path of rotation of the handle body 300, applying a damping force to the support arms on both sides of the handle body 300 during rotation. The purpose is to overcome the damping force of the blocking part 401 in addition to overcoming the force of the torsion spring when opening the car door in an emergency, increasing the threshold of the force applied to open the door and improving the safety of door use. There are two blocking parts 401, respectively located on both sides of the handle body 300 on the bracket 400. Each blocking part 401 is an integrally formed protrusion with the handle body 300, with an L-shaped structure including a blocking free end 4011 and a blocking connecting end 4012. The blocking connecting end 4012 connects the blocking free end 4011 and the bracket 400. (See attached diagram). Figure 12The angle between the blocking free end 4011 and the blocking connecting end 4012 is γ, where 30° < γ < 60°. The extending direction of the blocking free end 4011 is parallel to the rotation direction of the handle body 300 support arm. The blocking free end 4011 of the blocking part 401 has an interference fit with the outer side of the handle body 300 and the support arm of the handle body 300. The interference between the outer side of the blocking free end 4011 and the support arm of the handle body 300 is d, where 0.2mm < d < 3mm. The purpose of setting this interference is to provide appropriate damping force and to prevent the blocking part 401 from deforming too much and causing elastic failure when the door is opened in an emergency.

[0047] When the door handle of this utility model is in use, during normal opening, a finger is inserted into the handle recess 600 below the handle cover 500 and into the relief cavity 301 of the handle body 300, applying force to the upper cover plate 100, causing the upper cover plate 100 to rotate. During the rotation, the elastic element 200 spring is compressed, and the top of the spring abuts against the front partition plate 302 of the handle body 300. At the same time, the contact post 103 on the upper cover plate 100 passes through the through hole on the front partition plate 302 and abuts against the micro switch, and the micro switch provides... The signal completes the electric opening of the car door; in an emergency, the operator applies force to the upper cover plate 100, which transmits the force to the handle body 300. The handle body 300 rotates after overcoming the damping force of the torsion spring and the blocking part 401. The rotation of the handle body 300 will drive the pull cable to tighten. The other end of the pull cable tightens the mechanical unlocking mechanism, thereby completing the door opening action through mechanical opening. How the handle body 300 completes mechanical unlocking through the pull cable is a conventional technology and will not be described in detail.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compact welded cover plate assembly, characterized in that, include: The upper cover plate (100) is rotatably mounted on the handle body (300), and when it is rotated by force, the contact post (103) provided on the cover plate body (101) contacts the micro switch. An elastic element (200) is embedded in a limiting mechanism (102) of the upper cover plate (100) and is compressed when the upper cover plate (100) rotates close to the handle body (300). The limiting mechanism (102) is located in the middle of the upper cover plate (100), and the contact post (103) is located at both ends of the upper cover plate (100). The micro switch is fixedly installed relative to the handle body (300) and its position corresponds to the position of the contact post (103). When the upper cover plate (100) is not subjected to external force, the elastic element (200) restores its shape and drives the upper cover plate (100) to rotate away from the handle body (300) to achieve reset.

2. The compact welded cover plate assembly according to claim 1, characterized in that, The elastic element (200) is configured as a tower spring, wherein the diameter of the coil of the tower spring gradually decreases from the bottom end to the top end.

3. The compact welded cover plate assembly according to claim 2, characterized in that, The limiting mechanism (102) includes a U-shaped slot composed of a left limiting side groove (1021), a right limiting side groove (1023), and a cover plate body (101). The U-shaped slot is used for the insertion and installation of the elastic element (200), and the bottom surface of the slot is a semi-circular support surface that matches the bottom side of the elastic element (200). The limiting mechanism (102) also includes a limiting top block (1022), which is located directly above the U-shaped slot and is used to limit the bottom side of the elastic element (200).

4. The compact welded cover plate assembly according to claim 3, characterized in that, There are two contact posts (103), both of which are cross-shaped columns. Ribs are provided between the two sides of the root of the contact post (103) and the cover plate body (101).

5. A compact welded cover plate assembly according to claim 4, characterized in that, The front partition (302) of the handle body (300) has two limiting bosses (303) on the side that mates with the elastic member (200). A limiting transition platform (3031) is provided between the limiting boss (303) and the front partition (302). The limiting transition platform (3031) is used to limit the spring coil on the side of the elastic member (200) that is close to the limiting top block (1022) when the elastic member (200) is compressed.

6. The compact welded cover plate assembly according to claim 5, characterized in that, The limiting transition platform (3031) is configured as an arc surface, which matches the outer edge of the spring ring of the elastic element (200).

7. A compact welded cover plate assembly according to claim 6, characterized in that, A rotating seat (3032) is provided on the front partition (302) of the handle body (300), and a rotating column (105) is provided on the cover body (101) of the upper cover plate (100). The rotating seat (3032) and the rotating column (105) are rotatably installed through a rotating shaft (104).

8. A door handle comprising a compact welded cover plate assembly as described in any one of claims 1-7, further comprising a bracket (400), a handle recess (600) fixedly mounted relative to the bracket (400), and a handle body (300) rotatably mounted on the bracket (400), characterized in that, A blocking part (401) is provided between the arm of the handle body (300) and the side arm of the bracket (400). The blocking part (401) is used to provide damping force when the handle body (300) rotates relative to the bracket (400).

9. A door handle according to claim 8, characterized in that, There are two blocking parts (401) respectively located on the bracket (400) on both sides of the handle body (300). The blocking part (401) is a protrusion integrally formed with the handle body (300). The protrusion is an L-shaped structure and includes a blocking free end (4011) and a blocking connecting end (4012). The blocking connecting end (4012) is used to connect the blocking free end (4011) and the bracket (400). The angle between the blocking free end (4011) and the blocking connecting end (4012) is γ, where 30° < γ < 60°. The extension direction of the blocking free end (4011) is parallel to the rotation direction of the handle body (300) support arm.

10. A door handle according to claim 9, characterized in that, The blocking free end (4011) of the blocking part (401) and the support arm of the handle body (300) are interference fit. The interference between the outer side of the blocking free end (4011) and the support arm of the handle body (300) is d, 0.2mm < d < 3mm.

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