Lock catch reinforcing plate, mounting structure of vehicle door lock catch and vehicle

Abstract

The utility model relates to a door lock reinforcer, a mounting structure of a vehicle door lock catch and a vehicle, the door lock reinforcer comprises a reinforcing plate body, the reinforcing plate body comprises a first plate, a second plate and a third plate which are connected in sequence, the second plate is provided with a lock catch mounting part, and the lock catch mounting part is provided with a lock catch mounting hole; the first plate is provided with a first lap joint edge used for being fixedly connected with the side wall outer plate and the C column inner plate. The first plate is further provided with a welding boss which protrudes towards the side of the C-column inner plate and is used for being fixedly connected with the C-column inner plate. The third plate is provided with a second overlap edge used for being fixedly connected with a C column inner plate. According to the utility model, the dynamic stiffness of the lock catch mounting position is improved, and the process difficulty and cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle body structures, in particular to a latch reinforcement plate, an installation structure of a vehicle door latch and a vehicle. Background Art

[0002] During the process of closing the car door, the door lock and the lock buckle collide and engage, emitting a high-frequency, harsh metal knocking sound, which has a great impact on the quality of the door closing sound during use. Studies have found that by improving the dynamic stiffness of the lock buckle installation point, the door closing sound quality performance can be effectively improved. For example, the patent document CN114673411A discloses a car side door lock buckle installation structure, which improves the dynamic stiffness of the rear door lock buckle position by adding a support plate. However, this installation structure has a large number of welding layers at the rear door frame flange, which has the problem of high welding difficulty. Another example is the rear body lock buckle reinforcement bracket structure disclosed in the patent document CN209667215U, which also improves the dynamic stiffness of the rear door lock buckle position by adding a lock buckle reinforcement bracket. Among them, the lock buckle reinforcement bracket is welded to the rear body inner panel through welding points, and is connected to the rear body outer panel through welding points and structural adhesive applied to the flange. This structure has the problem of complex process.

[0003] Therefore, it is necessary to develop a new latch reinforcement plate, an installation structure of a door lock latch and a vehicle. Summary of the invention

[0004] The purpose of the utility model is to provide a lock buckle reinforcement plate, a door lock buckle installation structure and a vehicle, which can not only improve the dynamic stiffness of the lock buckle installation location, but also reduce the process difficulty and cost.

[0005] In the first aspect, a lock reinforcement plate described in the utility model includes a reinforcement plate body, which includes a first plate, a second plate and a third plate connected in sequence, the second plate is provided with a lock mounting portion, and the lock mounting portion is provided with a lock mounting hole; the first plate is provided with a first overlapping edge for fixedly connected to the side outer panel and the C-pillar inner panel; the first plate is also provided with a welding boss protruding toward the C-pillar inner panel side and used for fixedly connected to the C-pillar inner panel; the third plate is provided with a second overlapping edge for fixedly connected to the C-pillar inner panel.

[0006] Optionally, the middle portion of the second plate protrudes toward the side outer plate to form the lock mounting portion, so that there is a certain height difference between the lock mounting portion and other areas of the second plate, which can further improve the dynamic stiffness at the lock mounting position.

[0007] Optionally, the first plate, the second plate and the third plate are sequentially connected to form a Z shape.

[0008] Optionally, a support sink for fixedly connecting to the inner plate of the C-pillar is provided on the second overlapped edge at a position corresponding to the lock mounting portion. The support sink is connected to the rib on the inner plate of the C-pillar through a welding point, which can improve the low-frequency dynamic stiffness value of the lock.

[0009] In a second aspect, a door lock buckle installation structure according to the utility model comprises a buckle body, a side panel outer plate and a C-pillar inner plate, and also comprises a buckle reinforcement plate according to the utility model;

[0010] The lock reinforcement plate is fixedly connected to the side panel outer plate and the C-pillar inner plate respectively through the first overlapping edge, the welding boss and the second overlapping edge, so as to divide the space between the C-pillar inner plate and the side panel outer plate into a plurality of cavity structures;

[0011] The side outer plate is provided with a through hole at a position corresponding to the lock mounting hole on the lock reinforcement plate;

[0012] The lock body is connected to the side outer plate and the lock reinforcement plate by bolts through the lock mounting hole.

[0013] Optionally, the first overlapping edge of the lock reinforcement plate is welded to the side panel outer panel and the C-pillar inner panel respectively, the second overlapping edge of the lock reinforcement plate is welded to the C-pillar inner panel, and the welding boss of the lock reinforcement plate is welded to the C-pillar inner panel; so that both sides of the lock reinforcement plate are fixed, the connection distance between the lock and the nearby overlapping edges can be reduced.

[0014] Optionally, the lock mounting portion of the lock reinforcement plate is welded to the side outer panel. The lock reinforcement plate is connected to the surrounding side outer panel and the C-pillar inner panel by spot welding, so that the space between the C-pillar inner panel and the side outer panel can be divided into four cavity structures. This structure can improve the overall rigidity of the cavity, improve the bending rigidity and torsional rigidity of the body in white, and in a side collision, this part is not easily deformed, thereby improving the safety of the occupants.

[0015] Optionally, a support sink is provided on the second overlapped edge at a position close to the lock buckle mounting hole; a convex rib corresponding to the support sink is provided on the inner plate of the C-pillar, and the convex rib is welded to the support sink. Connecting the support sink and the convex rib through a welding point can improve the low-frequency dynamic stiffness value of the lock buckle.

[0016] In a third aspect, a vehicle described in the utility model adopts the lock reinforcement plate described in the utility model.

[0017] In a fourth aspect, a vehicle described in the utility model adopts the installation structure of the door lock catch described in the utility model.

[0018] The beneficial effects of the utility model are as follows: the lock buckle reinforcement plate of the utility model is fixedly connected between the inner plate of the C-pillar and the outer plate of the side panel, both sides of the lock buckle reinforcement plate are fixed, a welding boss is added to the first plate of the lock buckle reinforcement plate, and the welding boss is welded to the inner plate of the C-pillar. This structure can reduce the connection distance between the lock buckle and the nearby overlapping edges, thereby improving the dynamic stiffness of the lock buckle, and the impact force received by the lock buckle can be quickly transmitted to the inner plate of the C-pillar and the rear wheel cover (the rear wheel cover is welded to the inner plate of the C-pillar) at the moment of closing the door, thereby reducing the abnormal sound caused by the deformation of the lock buckle and improving the sound quality when closing the door. At the same time, the utility model also has the advantages of simple welding process and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the position of the lock reinforcement plate on the vehicle body in an embodiment of the present application;

[0020] Figure 2 for Figure 1 Schematic diagram of the cross section along line AA;

[0021] Figure 3 An exploded view of the lock reinforcement plate and surrounding structures in an embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of the structure of the lock reinforcement plate in the embodiment of the present application;

[0023] Among them: 1. Lock body; 2. Side outer panel; 3. Reinforcement plate body; 30. First plate; 31. First overlapping edge; 32. Welding boss; 33. Second overlapping edge; 34. Second plate; 35. Third plate; 36. Lock mounting hole; 37. Support sinker; 38. Lock mounting part; 4. C-pillar inner panel; 5. Rear wheel cover. DETAILED DESCRIPTION

[0024] The following will refer to the accompanying drawings and preferred embodiments to illustrate the implementation of the technical solution of the utility model. Those skilled in the art can easily understand other advantages and effects of the utility model from the contents disclosed in this specification. The utility model can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the utility model. It should be understood that the preferred embodiments are only for illustrating the utility model, not for limiting the scope of protection of the utility model.

[0025] like Figures 1 to 4As shown, in the embodiment of the present application, a lock reinforcement plate includes a reinforcement plate body 3, and the reinforcement plate body 3 includes a first plate 30, a second plate 34 and a third plate 35, and the first plate 30, the second plate 34 and the third plate 35 are sequentially connected to form a Z shape. Among them, the first plate 30 is provided with a first overlap edge 31 for fixedly connecting with the side outer plate 2 and the C-pillar inner plate 4. The second plate 34 is provided with a lock mounting portion 38, and the lock mounting portion 38 is provided with a lock mounting hole 36. The third plate 35 is provided with a second overlap edge 33 for fixedly connecting with the C-pillar inner plate 4. The first plate 30 is provided with a welding boss 32 protruding toward the C-pillar inner plate side and used for fixedly connecting with the C-pillar inner plate 4, and the welding boss 32 is connected to the C-pillar inner plate 4 through a welding point.

[0026] like Figure 2 and Figure 4 As shown, in a possible embodiment, the middle portion of the second plate 34 protrudes toward the side outer plate to form the lock mounting portion 38. Since the lock mounting portion 38 protrudes toward the side outer plate, there is a certain height difference (for example, 6 mm) between the lock mounting portion 38 and other areas of the second plate 34, which can significantly improve the dynamic stiffness of the lock.

[0027] like Figure 4 As shown, in a possible embodiment, a support sink 37 for fixedly connecting to the C-pillar inner plate 4 is provided on the second overlap edge 33 at a position corresponding to the lock buckle mounting portion 38. The support sink 37 and the convex rib on the C-pillar inner plate 4 are connected by welding points, which can improve the low-frequency dynamic stiffness value of the lock buckle.

[0028] In a possible embodiment, the lock reinforcement plate is a sheet metal stamping part with a thickness of 1.0 mm.

[0029] In the embodiment of the present application, a mounting structure of a door lock latch includes a latch body 1, a side outer panel 2, and a C-pillar inner panel 4, and also includes a latch reinforcement plate as described in the embodiment of the present application. The latch reinforcement plate is fixedly connected to the side outer panel 2 and the C-pillar inner panel 4 through a first lap edge 31, a welding boss 32, and a second lap edge 33 (for example, connected through welding points), and the space between the C-pillar inner panel 4 and the side outer panel 2 is divided into a plurality of cavity structures. The side outer panel 2 is provided with a through hole at a position corresponding to the latch mounting hole 36 on the latch reinforcement plate; the latch body 1 is connected to the side outer panel 2 and the latch reinforcement plate through the latch mounting hole 36 by bolts.

[0030] like Figure 2As shown, in a possible embodiment, the first overlapping edge 31 of the lock reinforcement plate is welded to the side outer panel 2 and the C-pillar inner panel 4 respectively, and the second overlapping edge 33 of the lock reinforcement plate is welded to the C-pillar inner panel 4. The welding boss 32 of the lock reinforcement plate is welded to the C-pillar inner panel 4. The lock mounting portion 38 of the lock reinforcement plate is welded to the side outer panel 2. Through the above connection structure, the space between the C-pillar inner panel 4 and the side outer panel 2 can be divided into four cavity structures, thereby improving the overall stiffness of the cavity, improving the bending stiffness and torsional stiffness of the body-in-white, and in a side collision, this place is not easy to deform, thereby improving the safety of the occupants. This structure also reduces the distance between the lock and the welding edge, thereby improving the dynamic stiffness at the lock.

[0031] like Figure 2 and Figure 4 As shown, in a possible embodiment, a support sink 37 is provided on the second overlap edge 33 at a position close to the lock buckle mounting hole 36. A convex rib corresponding to the support sink 37 is provided on the C-pillar inner plate 4, and the support sink 37 and the convex rib are connected by a welding point. This structure can improve the low-frequency dynamic stiffness value of the lock buckle.

[0032] In the embodiment of the present application, the lock buckle reinforcement plate is fixedly connected between the C-pillar inner plate 4 and the side outer plate 2, both sides of the lock buckle reinforcement plate are fixed, and a welding boss 32 is added to the first plate 30 of the lock buckle reinforcement plate, and the welding boss 32 is welded to the C-pillar inner plate 4. This structure can reduce the connection distance between the lock buckle and the nearby overlapping edges, thereby improving the dynamic stiffness of the lock buckle, and can quickly transmit the impact force received by the lock buckle to the C-pillar inner plate 4 and the rear wheel cover 5 (the rear wheel cover 5 is welded to the C-pillar inner plate 4) at the moment of closing the door, thereby reducing the abnormal sound caused by the deformation of the lock buckle and improving the sound quality when closing the door. At the same time, the utility model also has the advantages of simple welding process and low cost.

[0033] In an embodiment of the present application, a vehicle adopts the lock reinforcement plate as described in the embodiment of the present application.

[0034] In an embodiment of the present application, a vehicle adopts the installation structure of the door lock catch as described in the embodiment of the present application.

[0035] The above-mentioned embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above-mentioned embodiments. Any other changes, modifications, substitutions, combinations and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement modes and shall be included in the protection scope of the present invention.

Claims

1. A lock reinforcement plate, comprising a reinforcement plate body (3), which comprises a first plate (30), a second plate (34) and a third plate (35) connected in sequence, wherein the second plate (34) is provided with a lock mounting portion (38), and the lock mounting portion (38) is provided with a lock mounting hole (36); the characteristics are as follows: The first plate (30) is provided with a first overlapping edge (31) for fixedly connecting to the side panel outer plate (2) and the C-pillar inner plate (4); the first plate (30) is also provided with a welding boss (32) protruding toward the C-pillar inner plate side and for fixedly connecting to the C-pillar inner plate (4); and the third plate (35) is provided with a second overlapping edge (33) for fixedly connecting to the C-pillar inner plate (4).

2. The lock reinforcement plate according to claim 1, characterized in that: The middle portion of the second plate (34) protrudes toward the side outer plate to form the lock mounting portion (38).

3. The lock reinforcement plate according to claim 1, characterized in that: The first plate (30), the second plate (34) and the third plate (35) are sequentially connected to form a Z shape.

4. The lock reinforcement plate according to claim 1, characterized in that: A support sink (37) for fixedly connecting to the C-pillar inner plate (4) is provided on the second overlapping edge (33) at a position corresponding to the lock mounting portion (38).

5. A door lock catch installation structure, comprising a catch body (1), a side panel outer plate (2) and a C-pillar inner plate (4), characterized in that: Also includes a lock reinforcement plate as described in any one of claims 1 to 3; The lock reinforcement plate is fixedly connected to the side outer panel (2) and the C-pillar inner panel (4) respectively through a first overlapping edge (31), a welding boss (32), and a second overlapping edge (33), so that the space between the C-pillar inner panel (4) and the side outer panel (2) is divided into a plurality of cavity structures; The side outer plate (2) is provided with a through hole at a position corresponding to the lock mounting hole (36) on the lock reinforcement plate; The lock body (1) is connected to the side outer plate (2) and the lock reinforcement plate by bolts through the lock mounting hole (36).

6. The installation structure of the door lock catch according to claim 5, characterized in that: The first overlapping edge (31) of the lock reinforcement plate is welded to the side panel outer plate (2) and the C-pillar inner plate (4) respectively, and the second overlapping edge (33) of the lock reinforcement plate is welded to the C-pillar inner plate (4); the welding boss (32) of the lock reinforcement plate is welded to the C-pillar inner plate (4).

7. The installation structure of the door lock catch according to claim 6, characterized in that: The lock mounting portion (38) of the lock reinforcement plate is welded to the side enclosure outer plate (2).

8. The installation structure of the door lock catch according to claim 5, characterized in that: A support sink (37) is provided on the second overlapping edge (33) at a position close to the lock mounting hole (36); a convex rib corresponding to the support sink (37) is provided on the C-pillar inner plate (4), and the convex rib is welded to the support sink (37).

9. A vehicle, characterized in that: A lock reinforcement plate as described in any one of claims 1 to 4 is used.

10. A vehicle, characterized in that: The installation structure of the vehicle door lock catch as claimed in any one of claims 5 to 8 is adopted.

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