Car door lock switch triggering structure

Abstract

The utility model relates to the technical field of handle opening, in particular to a vehicle door lock switch triggering structure, which is characterized by comprising a carrier, a cam and a switch body, the handle is rotationally arranged on the carrier; the cam is arranged on the handle and comprises a body part and a triggering part which protrudes outwards relative to the body part; the switch body is fixedly arranged on the carrier and provided with a button part, the button part is located in a displacement path of the trigger part and slidably abuts against the trigger part, the trigger part is used for pressing the button part, and the protruding height of the trigger part relative to the body part is larger than the trigger stroke of the button part. The automobile door lock switch has the effects of improving the automobile door lock switch triggering reliability and prolonging the service life.

Description

A door lock switch triggering structure Technical Field

[0001] This utility model relates to the technical field of handle opening, and in particular to a door lock switch triggering structure. Background Technology

[0002] In the automotive manufacturing industry, the door switch system is one of the key components to ensure vehicle safety and user experience. Traditional door switches, also known as door lock switches, usually use mechanical microswitches to control the opening and closing state of the door and transmit signals to the body control module (BCM) to realize the door opening control function.

[0003] Traditional mechanical microswitches are contact switches that rely on the physical contact of metal contacts to achieve conductivity. However, with long-term use, these switches are prone to poor contact due to oxidation, wear, or dust accumulation, affecting signal accuracy and even causing malfunctions. Therefore, current automotive products are increasingly using electronic microswitches. Electronic microswitches have an integrated structure, are triggered by pressing, and offer optimized and improved waterproof performance and stability.

[0004] However, with the popularization of new energy vehicles, higher requirements have been placed on the reliability of car door switches. How to ensure that electronic micro switches can be reliably triggered is the key to achieving the above technical indicators. Therefore, there is an urgent need for a car door lock switch triggering structure to improve the reliability of the triggering action.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Summary of the Invention

[0006] This invention provides a door lock switch triggering structure to solve the problem of insufficient reliability of door lock switch triggering in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A door lock switch triggering structure includes:

[0009] carrier;

[0010] A handle is rotatably mounted on the carrier;

[0011] A cam is provided on the handle, the cam including a body portion and a trigger portion that protrudes outward from the body portion;

[0012] The switch body is fixedly mounted on the carrier and has a button portion. The button portion is located within the displacement path of the trigger portion and slides against the trigger portion. The trigger portion is used to press the button portion, and the protrusion height of the trigger portion relative to the body portion is greater than the trigger stroke of the button portion.

[0013] Preferably, the protrusion height of the trigger portion relative to the body portion is 1mm-3mm.

[0014] Preferably, the initial cutting angle when the trigger part presses the button part is ≤40°.

[0015] Preferably, the trigger portion includes an initial contact section, a pressing section, and a passing point holding section connected in sequence. The pressing section is raised relative to the initial contact section and the passing point holding section, and the highest protrusion of the trigger portion is located within the pressing section.

[0016] Preferably, the initial contact segment is a straight line segment.

[0017] Preferably, the pressing segment is an arc segment.

[0018] Preferably, the difference between the protrusion height of the over-point holding section and the highest protrusion height of the trigger section is ≤0.1mm.

[0019] Preferably, the button portion has a spherical surface for sliding contact with the trigger portion.

[0020] Preferably, it also includes a rotating shaft, which is fixedly mounted on the carrier, and the cam has a through mounting hole, and the rotating shaft has a through mounting hole and slides in cooperation with the cam;

[0021] And a torsion spring, sleeved on the rotating shaft, with its two ends connected to the handle and the carrier respectively, for applying a restoring elastic force to the handle.

[0022] Preferably, the cam is integrally connected to the handle.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The door lock switch triggering structure provided by this utility model provides an installation space for the handle and the switch body. The handle can rotate on the carrier to perform the unlocking action. During the rotation of the handle, the cam is driven to rotate. At this time, the triggering part of the cam can pass through the button part of the switch body and then move the button part. Since the protrusion height of the triggering part is greater than the triggering stroke of the button part, the button part can be fully triggered, thus solving the problem of insufficient triggering reliability of the door lock switch.

[0025] In addition, by setting the initial cutting angle of the trigger part and the button part to ≤40°, the vertical pressure on the button part can be reduced, the button part can be pressed smoothly, and the service life of the button part can be extended.

[0026] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 is a schematic diagram of the door lock switch triggering structure provided in an embodiment of the present invention;

[0029] Figure 2 is a structural schematic diagram of the handle and switch body provided in an embodiment of the present utility model;

[0030] Figure 3 is a schematic diagram of the structure of the cam provided in this embodiment of the present invention when it is not in contact with the switch body;

[0031] Figure 4 is a schematic diagram of the structure of the cam provided in the embodiment of the present invention when it initially contacts the switch body;

[0032] Figure 5 is a structural schematic diagram of the handle and switch body provided in an embodiment of the present invention from another perspective.

[0033] Figure label:

[0034] 1. Carrier; 2. Handle; 3. Cam; 31. Body; 311. Mounting hole; 32. Trigger; 321. Initial contact section; 322. Pressing section; 323. Over-point holding section; 4. Switch body; 41. Button section; 5. Rotating shaft; 6. Torsion spring. Detailed Implementation

[0035] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component that is centrally positioned therein. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be a component that is centrally positioned therein.

[0037] Furthermore, terms such as "long," "short," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of this utility model.

[0038] The technical solution of this utility model will be further described below with reference to Figures 1-5 and specific embodiments.

[0039] Please refer to Figures 1 and 2. This embodiment of the utility model provides a door lock switch triggering structure, including a carrier 1, a handle 2, a cam 3, and a switch body 4.

[0040] The carrier 1 can be understood as a switch box or panel on the car door for mounting the handle 2, providing an installation position for the handle 2 and the switch body 4. Depending on the actual needs, the carrier 1 can have a variety of different structural forms. Regardless of the structural form of the carrier 1, it should be included in the scope of this solution and no specific restrictions are imposed here.

[0041] Meanwhile, the handle 2 is rotatably mounted on the carrier 1. By pulling the handle 2 to rotate, the unlocking action can be performed. It conforms to the ergonomic design and is easy to use. For ease of understanding, the rotation axis of the handle 2 is defined as I.

[0042] Based on this, cam 3 is located on handle 2. Specifically, cam 3 is integrally connected to handle 2, which can improve the connection stability of the two, prevent the structure from deforming, effectively improve the service life, and prevent the triggering accuracy from being affected. In addition, cam 3 is located on the inner side of handle 2, which means that cam 3 is located on the non-outer surface of handle 2.

[0043] Furthermore, referring to FIG3, in the embodiment provided in this embodiment, the cam 3 includes a body portion 31 and a trigger portion 32 that protrudes outward from the body portion 31; in this embodiment, the body portion 31 is integrally connected to the handle 2, and the side of the body portion 31 away from the handle 2 has a circumferential surface, the center of which coincides with the rotation axis I of the handle 2, the trigger portion 32 is located on the edge of the circumferential surface, the trigger portion 32 is integrally connected to the body portion 31, and the trigger portion 32 protrudes outward from the body portion 31.

[0044] The switch body 4 is fixedly mounted on the carrier 1 and has a button part 41. Specifically, the switch body 4 used in this application is a type of micro switch that is triggered by pressing through a button structure. It can be understood that a micro switch is a contact device with a small contact interval and a quick-acting mechanism. It performs switching action through a specific stroke and force. Its exterior is covered by a shell and equipped with a retractable drive rod. A contact part is also provided inside the shell. The contact part is connected to a terminal part, and the terminal part is conductive to a wire (not shown in the figure). Pressing the drive rod causes the contact part to make contact, thereby generating a conduction signal. It has the characteristics of quick action, small contact interval and flexible operation.

[0045] There are various triggering methods for micro switches. They are usually triggered by adding auxiliary pressing accessories, such as buttons, reed rollers, lever rollers, etc. Switches can be further divided into various types such as button type, reed roller type, lever roller type, short lever type and long lever type. This solution uses a button structure to trigger the drive rod. Specifically, the button part 41 is movably mounted on the housing. The triggering effect is achieved by repeatedly pressing the button part 41.

[0046] Based on this, the end of the button part 41 is positioned opposite to the cam 3, and the button part 41 is located within the displacement path of the trigger part 32. During the rotation of the cam 3, the trigger part 32 will touch the button part 41 and slide against it. As the cam 3 continues to rotate, the trigger part 32 can press the button part 41 to achieve the triggering effect.

[0047] It is understandable that the button part 41 is close to the body part 31, and the distance between the two is less than 0.3mm. Or, when the switch body is not triggered, the button part 41 just abuts against the body part 31. At this time, the protrusion height of the trigger part 32 is close to the application stroke of the cam 3 on the button part 41. This makes it easier to control the pressing stroke of the button part 41, and thus makes it easier to control the pressing accuracy. Based on this, the solution is further configured such that the protrusion height of the trigger part 32 relative to the body part 31 is greater than the trigger stroke of the button part 41.

[0048] In the above embodiment, since the button part 41 is on the moving path of the trigger part 32, the trigger part 32 can push the button part 41 to move. At the same time, since the protrusion height of the trigger part 32 is greater than the trigger stroke of the button part 41, it can be ensured that the button part 41 is fully triggered, and the problem of insufficient triggering reliability of the micro switch is solved.

[0049] Further, referring to Figure 3, the protrusion height of the trigger portion 32 relative to the body portion 31 is 1mm-3mm. It can be understood that, here, the protrusion height of the trigger portion 32 is defined as D. First, a highest point is selected on the trigger portion 32, and an arc-extended reference line is drawn on the circumferential surface of the body portion 31. The protrusion height of the trigger portion 32 relative to the body portion 31 can be understood as the radial length between the highest point of the trigger portion 32 and the arc-extended reference line.

[0050] Based on this, the trigger stroke of a conventional micro switch is around 1.0mm. In practical applications, due to the assembly tolerances of the components, the cumulative assembly tolerances of multiple components may cause the trigger stroke of the micro switch to be amplified. In this case, this solution sets the protrusion height of the trigger part 32 relative to the body part 31 to 1mm-3mm, which can ensure that the trigger stroke of the button part 41 is covered and provide more trigger margin, thereby significantly improving the trigger reliability of the switch body 4 and overcoming the influence of accumulated tolerances.

[0051] For example, the protrusion height of the trigger part 32 relative to the body part 31 can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.5mm, 3.0mm, etc. The specific protrusion height of the trigger part 32 can be adjusted according to actual needs, and no specific limitation is made here. In this embodiment, 1.2mm is selected as an example. In another embodiment, the range of the protrusion height of the trigger part 32 relative to the body part 31 can also be selected between any two of the above parameter values.

[0052] Furthermore, the initial cutting angle when the trigger part 32 presses the button part 41 is ≤40°. The handle 2 and the switch body 4 are typically horizontally positioned when mounted on the carrier 1. Figure 4 is a top view of the handle 2 and the switch body 4 in their assembled state, with a reference axis α selected along the pressing direction perpendicular to the button part 41.

[0053] From this perspective, the initial cutting angle when the trigger part 32 presses the button part 41 can be understood as: the inclination angle of the tangent at the contact position of the trigger part 32 and the button part 41 when the trigger part 32 and the button part 41 initially come into contact. This tangent intersects the reference axis α, and the included angle formed by the two is the initial cutting angle, which is defined as β here. It can be understood that when the cutting angle is greater than 40°, the direction of the force applied by the trigger part 32 to the button part 41 will tend to be perpendicular to the pressing direction of the button part 41, which may cause jamming. Over time, this will cause the button part 41 to deform, making it impossible to trigger the button part 41. Therefore, when the initial cutting angle is ≤20°, the button part 41 can be pressed smoothly, which is beneficial to extending the service life of the button part 41.

[0054] For example, the cutting angle can be 0°, 5°, 10°, 15°, 20°, 25°, 30°, 35°, 40°, etc. The cutting angle can be adjusted according to actual needs, and no specific limitation is made here; in another embodiment, the specific value range of the cutting angle can also be selected between any two of the above parameter values.

[0055] Furthermore, referring to Figures 4 and 5, in actual use, the outline shape of the trigger part 32 has a direct impact on the operating feel. To improve the opening feel of the micro switch, the trigger part 32 includes an initial contact section 321, a pressing section 322, and a passing point holding section 323 connected in sequence. The initial contact section 321 and the passing point holding section 323 are located on both sides of the pressing section 322. The pressing section 322 is raised relative to the initial contact section 321 and the passing point holding section 323, and the highest protrusion of the trigger part 32 is located within the pressing section 322.

[0056] With the above configuration, during the opening of the switch body 4, the initial contact section 321 is used to initially contact the button part 41. Since the protrusion height of the pressing section 322 is greater than the protrusion height of the trigger part 32, the button part 41 is gradually guided into the pressing section 322 through the initial contact section 321 during the rotation of the handle 2, making the triggering process smoother. After the triggering is completed, as the rotation of the handle 2 continues, the button part 41 will move into the over-point holding section 323, and the pressing stroke of the button part 41 will be maintained by the over-point holding section 323 to ensure that the pressing action is continuous and effective, and the contact is not easily interrupted, thus optimizing and improving the user experience.

[0057] In this embodiment, the initial contact segment 321 is a straight line segment. A straight line segment can have a consistent slope, which allows the button portion 41 to be pressed down smoothly during the initial contact process, and smoothly guides the button portion 41 to the pressing segment 322.

[0058] Furthermore, the pressing section 322 is an arc segment. Specifically, the pressing section 322 is an outwardly protruding arc segment. At this time, as the handle 2 rotates, the button part 41 moves into the pressing section 322. The arc-shaped pressing section 322 can smoothly guide the button to the highest protruding position, so that the button part 41 is smoothly pressed down to the maximum displacement stroke.

[0059] In addition, when the button portion 41 moves from the pressing section 322 to the over-point holding section 323, the over-point holding section 323 is used to keep the button portion 41 at its maximum trigger stroke to prevent the button portion 41 from rebounding and causing a trigger error signal. Based on this, the over-point holding section 323 is also an arc segment, but the curvature of the over-point holding section 323 is smaller than that of the pressing section 322, and its overall outline is close to a straight line segment. On the one hand, setting the over-point holding section 323 to an arc segment makes it easier for the button portion 41 to slide, and the feel is smoother. On the other hand, setting the outline of the over-point holding section 323 to be close to a straight line segment can reduce the overall difference in the protrusion height of the over-point holding section 323, so as to avoid the button portion 41 rebounding significantly within the over-point holding section 323.

[0060] The difference between the height of the protrusion of the holding section 323 and the highest protrusion of the trigger section 32 is ≤0.1mm. Tests have shown that when the difference is ≤0.1mm, the button section 41 can stably maintain the triggered state. For example, the difference can be 0.01mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, etc. The difference between the height of the protrusion of the holding section 323 and the highest protrusion of the trigger section 32 can be adjusted according to actual needs, and no specific limitation is made here. In another embodiment, the range of the difference can be selected between any two of the above parameter values.

[0061] Furthermore, the button part 41 is provided with a spherical surface for sliding contact with the trigger part 32. The spherical surface can reduce the resistance experienced by the button part 41 and widen the trigger angle of the button part 41, so as to realize multi-angle pressing and further optimize and improve the user experience.

[0062] Referring back to Figure 2, in order to enable the handle 2 to automatically reset after the car door is opened, the micro switch triggering mechanism provided in this application embodiment further includes a rotating shaft 5 and a torsion spring 6. The rotating shaft 5 is fixedly mounted on the carrier 1, and a mounting hole 311 is provided through the cam 3. The mounting hole 311 is located on the body 31, and the rotating shaft 5 passes through the mounting hole 311 and slides in cooperation with the cam 3. Typically, the diameter of the mounting hole 311 is adapted to the diameter of the rotating shaft 5, and the inner wall of the mounting hole 311 slides against the rotating shaft 5, allowing the handle 2 to be rotatably connected to the carrier 1 via the rotating shaft 5.

[0063] Additionally, the torsion spring 6 is sleeved on the rotating shaft 5, and both ends of the torsion spring 6 are connected to the handle 2 and the carrier 1, respectively. Typically, both ends of the torsion spring 6 have outwardly extending portions, which abut against the inner wall of the handle 2 and the inner wall of the carrier 1, respectively, to obtain support. Under the support, when the handle 2 rotates, it compresses the torsion spring 6, which applies a restoring force to the handle 2. When the user releases the handle 2, the handle 2 can return to its original position under the action of the restoring force. During the restoring process, the point holding section 323, the pressing section 322, and the initial contact section 321 can smoothly rebound, with rapid rebound and no jamming.

[0064] The door lock switch triggering structure provided in this application has the following beneficial effects:

[0065] 1. Because the protrusion height of the trigger part 32 is greater than the trigger stroke of the button part 41, it can be ensured that the button part 41 is fully triggered, and the structure is reliable;

[0066] 2. The handle 2 rotates smoothly, providing an excellent operating feel;

[0067] 3. The handle 2 can quickly rebound with the cooperation of the pivot 5 and the torsion spring 6, providing a good user experience.

[0068] Therefore, the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A door lock switch triggering structure, characterized in that, include: Carrier (1); handle (2), rotatably mounted on the carrier (1); cam (3), mounted on the handle (2), the cam (3) including a body part (31) and a trigger part (32) protruding outward from the body part (31); and switch body (4), fixedly mounted on the carrier (1), having a button part (41), the button part (41) being located within the displacement path of the trigger part (32) and slidingly abutting against the trigger part (32), the trigger part (32) being used to press the button part (41), the protrusion height of the trigger part (32) relative to the body part (31) being greater than the trigger stroke of the button part (41).

2. The door lock switch triggering structure according to claim 1, characterized in that, The protrusion height of the trigger part (32) relative to the body part (31) is 1mm-3mm.

3. The door lock switch triggering structure according to claim 1, characterized in that, The initial cutting angle of the trigger part (32) when pressing the button part (41) is ≤40°.

4. The door lock switch triggering structure according to any one of claims 1-3, characterized in that, The triggering part (32) includes an initial contact section (321), a pressing section (322), and a passing point holding section (323) connected in sequence. The pressing section (322) is raised relative to the initial contact section (321) and the passing point holding section (323). The highest protrusion of the triggering part (32) is located within the pressing section (322).

5. The door lock switch triggering structure according to claim 4, characterized in that, The initial contact segment (321) is a straight line segment.

6. The door lock switch triggering structure according to claim 4, characterized in that, The downward pressing section (322) is an arc segment.

7. The door lock switch triggering structure according to claim 4, characterized in that, The difference between the protrusion height of the over-point holding section (323) and the highest protrusion height of the trigger part (32) is ≤0.1mm.

8. The door lock switch triggering structure according to claim 1, characterized in that, The button part (41) is provided with a spherical surface for sliding contact with the trigger part (32).

9. The door lock switch triggering structure according to claim 1, characterized in that, It also includes a rotating shaft (5), which is fixedly mounted on the carrier (1). The cam (3) has a through mounting hole (311), and the rotating shaft (5) is through the mounting hole (311) and slides with the cam (3); and a torsion spring (6), which is sleeved on the rotating shaft (5) and whose two ends are respectively connected to the handle (2) and the carrier (1) to apply a reset spring force to the handle (2).

10. The door lock switch triggering structure according to claim 1, characterized in that, The cam (3) is integrally connected to the handle (2).

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