Vehicle light

Abstract

The application provides a vehicle lamp, comprising a main body, a gas injection pipe and a clamping plate. The main body forms a mounting cavity and an opening communicating with the mounting cavity. The gas injection pipe is connected to the main body and communicates with the opening. The clamping plate is connected to the outer side wall of the gas injection pipe. An end of the clamping plate away from the gas injection pipe is provided with a clamping position. The clamping position is configured to be clamped with a clamping tool when the vehicle lamp is subjected to air tightness detection. The clamping of the vehicle lamp does not need to use the clamping structure of the vehicle lamp, so that the stability of clamping can be ensured, the durability of the clamping structure can be avoided to reduce, the stability of the whole lamp assembly and the complete life cycle of the vehicle lamp can be ensured. In addition, the clamping plate is connected to the outer side wall of the gas injection pipe, so that the structural strength of the whole gas injection pipe can be improved.

Description

Technical Field

[0001] This application relates to the field of automotive lighting technology, and more particularly to an automotive lighting system. Background Technology

[0002] When performing airtightness testing on vehicle lights, the lights need to be clamped and fixed. In related technologies, the existing snap-fit ​​structure of the vehicle lights is mainly used to clamp and fix them. However, the clamping force of the airtightness tooling is often insufficient, the clamping is not stable, which affects the airtightness test results. At the same time, it reduces the durability of the snap-fit ​​structure and affects the assembly of the entire light and the complete life cycle of the vehicle lights. Utility Model Content

[0003] This application provides a vehicle lamp that can solve the problem in related technologies where the snap-fit ​​method affects the airtightness test results and the overall lamp assembly and the complete life cycle of the vehicle lamp.

[0004] In a first aspect, embodiments of this application provide a vehicle lamp, including a body having a mounting cavity and an opening communicating with the mounting cavity; An air injection tube is connected to the main body and communicates with the opening; and... A clamping plate is connected to the outer wall of the air injection pipe. A snap-fit ​​position is formed at the end of the clamping plate away from the air injection pipe. The snap-fit ​​position is configured to snap into the clamping fixture when the vehicle light is subjected to air tightness testing.

[0005] The vehicle lamp in this embodiment includes a main body, an air injection pipe, and a clamping plate. The main body forms a mounting cavity and an opening communicating with the mounting cavity. The air injection pipe is connected to the main body and communicates with the opening. The clamping plate is connected to the outer wall of the air injection pipe. A snap-fit ​​position is formed at the end of the clamping plate away from the air injection pipe. The snap-fit ​​position is configured to snap-fit ​​with the clamping fixture when the vehicle lamp is subjected to air tightness testing. That is, the clamping of the vehicle lamp does not require the snap-fit ​​structure of this application, thereby ensuring the stability of the snap-fit ​​and avoiding the reduction of the durability of the snap-fit ​​structure, ensuring the assembly stability of the entire lamp and the complete life cycle of the vehicle lamp. In addition, by connecting the clamping plate to the outer wall of the air injection pipe, the structural strength of the entire air injection pipe can also be improved.

[0006] On the other hand, the air injection pipe is a necessary component for air tightness testing, that is, it is used to inflate the mounting cavity. The card plate is combined with the air injection pipe without taking up any additional space, such as avoiding affecting the layout of other components on the vehicle body, and without damaging the structural integrity of the main body, such as avoiding drilling holes or injection molding protrusions on the side wall of the main body, thus reducing the risk of cracking of the main body.

[0007] The overall structure of the headlights is more compact, without increasing the size of the headlights, which is in line with the design trend of "miniaturization and lightweighting of automotive parts". At the same time, it simplifies the injection mold of the headlights and reduces manufacturing costs.

[0008] In some embodiments, the body includes: External lampshade; and The bottom shell is connected to one side of the outer lamp cover and forms a mounting cavity with the outer lamp cover; the air injection pipe is connected to the bottom shell. The outer lamp cover and the bottom shell are arranged along a first direction, and the air injection pipe extends along the first direction.

[0009] In the above embodiments, the stacking arrangement of the outer lamp cover and the bottom shell along the first direction is conducive to achieving a thinner and lighter shape, making the overall weight distribution more uniform. At the same time, the air injection pipe is integrated on the bottom shell along the same direction, avoiding abrupt lateral protrusions, making the installation and fit between the headlight assembly and the body smoother and the overall integrity stronger.

[0010] In some embodiments, the card plate has a groove on the side away from the gas injection tube to form the locking position, and the groove extends through the card plate along the thickness direction of the card plate.

[0011] In the above embodiments, the groove provides a clear guide and receiving space for the jaws of the clamping tool. The through groove forms an open channel structure, which makes it easier for the jaws to extend into the groove. At the same time, the side of the groove can form a larger contact area with the jaws, making the clamping force distribution more uniform and preventing damage to the clamping plate due to stress concentration.

[0012] In some embodiments, the groove is constricted in the direction from the opening of the groove to the bottom of the groove.

[0013] In the above embodiments, when the jaws of the clamping fixture approach, they can be naturally guided to the correct position, achieving rapid and precise docking. This reduces alignment time and improves production efficiency. The constricted design allows for surface contact or longer linear contact between the sidewall and the clamping component. This significantly increases friction, making the connection more stable and effectively resisting vibrations and impacts that may occur during airtightness testing, preventing loosening.

[0014] In some embodiments, the card plate has a dimension of h1 along the depth direction of the groove, and the depth of the groove is h2, wherein h1 and h2 satisfy: 0.3h1≤h2≤0.5h1.

[0015] In the above embodiments, it is ensured that the jaws of the clamping fixture can engage sufficiently. The appropriately deep grooves provide a longer guide contact surface, resulting in smoother engagement and more accurate alignment. Once engaged, it effectively limits the chuck's movement in the second direction and its torsion around the air injection tube axis.

[0016] In some embodiments, the bottom surface of the groove is a plane.

[0017] In the above embodiments, the vertical plane can evenly distribute the force across the entire contact surface, effectively avoiding stress concentration and protecting the card plate.

[0018] In some embodiments, the vehicle light has two ends spaced apart along a second direction, and the vehicle light includes a plurality of plates, the plurality of plates including a first plate and a second plate, the first plate and the second plate being spaced apart along the second direction; The first direction intersects with the second direction.

[0019] In the above embodiments, during airtightness testing, the clamping fixture can simultaneously engage with the first and second clamping plates spaced apart along the second direction, which is equivalent to providing multiple anchor points for the vehicle headlight. This effectively prevents the vehicle headlight from shaking or shifting during the testing process, ensuring that the seal between the vehicle headlight and the fixture is subjected to uniform force and preventing leakage misjudgment due to slight movements.

[0020] In some embodiments, the card plate has a first end face away from the bottom shell, the air injection tube has a second end face away from the bottom shell, and the distance between the first end face and the second end face in the first direction is h3, where h3 satisfies: 0.8mm≤h3≤1.2mm.

[0021] In the above embodiments, the second end face and the first end face are made to have a suitable distance, which reduces the possibility that the joint of the gas supply pipe or the operating tool will collide or scratch the card plate when it is close to the gas injection port, and also reduces the possibility that the joint of the gas supply pipe or the operating tool will wear the card plate, thereby ensuring the structural strength of the card plate to a certain extent.

[0022] In some embodiments, the snap-fit ​​position is located at the end of the air injection tube away from the body.

[0023] In the above embodiment, there is a sufficient gap between the locking position and the main body. This gap provides the necessary longitudinal operating space for the insertion, locking and even the final withdrawal of the locking claw, reducing the possibility that the outer contour of the locking claw will scratch or even collide with the surface of the main body during the movement. The sufficient gap ensures that the locking claw can avoid the main body and smoothly reach the target locking position, preventing assembly interference.

[0024] In some embodiments, the card extends to be connected to the body.

[0025] In the above embodiment, the base of the clamping plate is firmly connected to the main body. Thus, the force distribution mode changes from the clamping plate alone to a more stable overall frame. That is, when the claws apply clamping force or are subjected to external vibration, the force can be effectively transferred and distributed to the larger main body through the clamping plate, which can significantly enhance the structure's torsional resistance and overall load-bearing capacity. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the clamping fixture. Figure 2 This is a structural schematic diagram of the clamping fixture in the case of assembling the vehicle lamp provided in the embodiment of this application; Figure 3 This is a schematic diagram of the structure of the vehicle lamp provided in the embodiment of this application; Figure 4 This is a structural schematic diagram of the vehicle headlights from another perspective provided in an embodiment of this application; Figure 5 yes Figure 4 An enlarged schematic diagram of the structure at point A in the structure shown.

[0027] Explanation of reference numerals in the attached figures: 1. Vehicle lights; 10. Main body; 11. Outer lampshade; 12. Bottom shell; 20. Gas injection tube; 20a. Second end face; 30. Card plate; 30a. Groove; 30b. First end face; 31. First card plate; 32. Second card plate; 40. Snap-fit ​​structure; 41. Protruding arm; 42. Snap hook; 42a. Stepped surface.

[0028] 2. Clamping fixture; 21. Clamping jaws; X, the first direction; Y, the second direction. Detailed Implementation

[0029] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text 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, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

[0030] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0031] In existing technologies, when performing airtightness testing on vehicle lights, the lights need to be clamped and fixed. The relevant technologies mainly use clamping structures to clamp and fix the existing snap-fit ​​structures of the lights. However, the clamping force of the airtightness tooling is often insufficient, resulting in unstable clamping, which affects the airtightness test results. At the same time, it reduces the durability of the snap-fit ​​structure, affecting the assembly of the entire light and the complete life cycle of the vehicle light.

[0032] Specifically, the headlight 1 is generally equipped with a snap-fit ​​structure 40, such as Figures 1 to 3 As shown, the snap-fit ​​structure 40 includes a protruding arm 41 and two snap hooks 42. The protruding arm 41 is connected to the headlight 1, and the two snap hooks 42 are connected to the end of the protruding arm 41 away from the headlight 1 and bent in the direction of the headlight 1. The end of the snap hook 42 away from the protruding arm 41 has a stepped surface 42a. One side of the stepped surface 42a faces the headlight 1, and the other side faces away from the protruding arm 41. When assembling with the clamping structure, the snap hooks 42 first deform in the direction of the protruding arm 41 to avoid it, and then the stepped surface 42a on the clamping structure abuts against the stepped surface 42a on the snap hooks 42 to complete the assembly of the headlight 1. However, during the clamping process, the clamping is completed by the stepped surface 42a on the clamping structure abutting against the stepped surface 42a on the snap hooks 42. The protruding arm 41 is essentially a cantilever beam structure, which is prone to slight elastic deformation or vibration when subjected to force, directly affecting the stability of the clamping.

[0033] On the other hand, since the hook part 42 is in contact with the clamping structure, its durability will also change. When it is assembled with the body, it will affect the assembly of the whole lamp and the complete life cycle of the lamp 1.

[0034] In response to this, this application proposes a vehicle light 1, please refer to the embodiments below. Figures 3 to 4 It includes the main body 10, the air injection pipe 20, and the clamping plate 30.

[0035] The main body 10 has a mounting cavity and an opening communicating with the mounting cavity. The mounting cavity can house a light source, circuit board, reflector, light guide, lens, and lampshade. The light source, as the light emitter, directly generates light. The circuit board provides mechanical support, electrical connection, and manages heat dissipation to ensure stable operation of the light source. LED beads are mounted on the circuit board. The reflector guides the light emitted by the light source in the desired direction, improving luminous efficiency and shaping the light pattern. The light guide, through the principle of total internal reflection, transmits light to a specific area, achieving a uniform linear light effect, protecting internal components, and using optical design to focus and diffuse the light, forming a compliant light pattern. The lampshade can be made of transparent material and can be decorated with patterns or designs to enhance aesthetics.

[0036] The air injection pipe 20 is used to connect to an external air supply device. During airtightness testing, the external air supply device (such as an airtightness leak detector) injects a constant-pressure gas (usually dry, clean air or inert gas) into the sealed mounting cavity inside the headlight 1 through the air injection pipe 20, thereby establishing the pressure environment required for testing. Then, in the "pressure holding" stage, the device closes the air valve and monitors the internal pressure changes with high precision. The final judgment is based on the leakage rate, i.e., the pressure change value over a certain period of time. This value is automatically calculated by the detector; this is existing technology and will not be explained further here.

[0037] The clamping plate 30 is connected to the outer wall of the air injection pipe 20. The end of the clamping plate 30 away from the air injection pipe 20 has a locking position. The locking position is configured to lock with the clamping fixture 2 when the headlight 1 is subjected to air tightness testing. The clamping fixture 2 can be driven by a power device such as a cylinder or hydraulic cylinder to cooperate with the locking position, thereby ensuring the stability of the headlight 1 when it is subjected to air tightness testing.

[0038] In addition, it is understandable that the plate 30 can be made of high-strength engineering plastic or metal. Through its own structure or connection with the air injection pipe 20, the plate 30 can play the role of local reinforcing rib, enhancing the overall rigidity and durability of a specific area of ​​the headlight 1.

[0039] On the other hand, without the need to open additional mounting positions or add independent support structures on the main body 10, but instead integrating the clamping plate 30 into the outer wall of the air injection pipe 20, and with the snap-fit ​​position located on the clamping plate 30, it also has the following significant integration advantages: The air injection pipe 20 is a necessary component for air tightness testing, which is used to inflate the mounting cavity. The clamping plate 30 is combined with the air injection pipe 20 without occupying any additional space. This avoids affecting the layout of other components on the vehicle body and does not damage the structural integrity of the main body 10, such as avoiding drilling holes or injection molding protrusions on the side wall of the main body 10, thus reducing the risk of cracking of the main body 10.

[0040] The overall structure of the headlight 1 is more compact, without increasing the external size of the headlight 1, which conforms to the design trend of "miniaturization and lightweighting of automotive parts". At the same time, it simplifies the injection mold of the headlight 1 and reduces manufacturing costs.

[0041] Based on this, in the embodiment of this application, the clamping force of the air tightness testing fixture acts directly on the clamping plate 30 on the outside of the air injection pipe 20, completely avoiding the snap-fit ​​structure 40 on the headlight 1 housing used for vehicle assembly. The headlight 1 is installed on the vehicle body through its original snap-fit ​​structure 40, which is not affected by the testing clamp, ensuring reliable connection, avoiding the reduction of the durability of the snap-fit ​​structure 40, and ensuring the stability of the entire headlight assembly and the complete life cycle of the headlight 1.

[0042] In one embodiment of this application, please refer to Figure 3 and Figure 4The main body 10 includes an outer lamp cover 11 and a bottom shell 12.

[0043] The outer lamp cover 11 serves as an optical interface and protection, ensuring accurate light emission and protecting internal components. The bottom shell 12 mainly provides support, and its inner side is equipped with a precision positioning structure, such as a slot, for quick and accurate alignment and fixation with the insert on the outer lamp cover 11.

[0044] The stacking arrangement of the outer lamp cover 11 and the bottom shell 12 along the first direction X helps to achieve a thinner and lighter shape, making the overall weight distribution more even. At the same time, the air injection pipe 20 is integrated on the bottom shell 12 along the same direction, avoiding abrupt lateral protrusions, making the installation and fit between the headlight assembly 1 and the body smoother and the overall integrity stronger.

[0045] It is also understandable that, throughout the entire testing fixture, such as Figure 2 As shown, support seats (or support members) are also provided at both ends of the headlight 1. The support seats (or support members) are usually provided with mounting grooves that fit the bottom contour of the headlight 1, i.e. the bottom contour of the bottom shell 12. When the headlight 1 is placed on them, it can be quickly and accurately positioned. The weight of the headlight 1 and some of the detection pressure are effectively distributed by these mounting grooves.

[0046] This support provided from below provides a stable "foundation" for the clamping forces from above and the sides, ensuring that the headlight 1 is subjected to uniform and stable force in the first direction X, that is, in the direction of gravity, avoiding deformation or stress concentration that may be caused by suspended clamping. Furthermore, the air injection pipe 20 extends along the first direction X, thus cooperating with the clamping fixture 2 and the snap-fit ​​position on the clamping plate 30 to ensure the stability of the headlight 1 during air tightness testing.

[0047] On the other hand, the air injection pipe 20 is generally a round pipe. The air injection pipe 20 extends along the first direction X and connects to the bottom shell 12. The path from its air inlet to the mounting cavity is a straight line without bends, with minimal airflow resistance. It can quickly deliver compressed air to all corners of the mounting cavity, such as the gap between the outer lamp cover 11 and the bottom shell 12, and the back of the reflector cup. This avoids insufficient local pressure caused by path bends. If a certain area of ​​the mounting cavity cannot be filled with gas, a false qualified signal will appear, ensuring the stability of the detection process.

[0048] Following on from the above, please refer to Figure 4 and Figure 5 The headlight 1 has two ends spaced apart along the second direction Y. The headlight 1 includes multiple plates 30, each including a first plate 31 and a second plate 32. The first plate 31 and the second plate 32 are arranged spaced apart along the second direction Y. The first direction X intersects the second direction Y. Specifically, the first direction X is approximately perpendicular to the second direction Y.

[0049] During airtightness testing, the clamping fixture 2 can simultaneously engage with the first clamping plate 31 and the second clamping plate 32, which are spaced apart along the second direction Y. This is equivalent to providing multiple anchor points for the headlight 1, which can effectively prevent the headlight 1 from shaking or shifting during the testing process. This ensures that the seal between the headlight 1 and the fixture is subjected to uniform force and will not cause leakage or misjudgment due to slight movement.

[0050] The spacing between the first clamping plate 31 and the second clamping plate 32 disperses the clamping force over a larger area, avoiding stress concentration that could damage the outer shell or internal snap-fit ​​structure 40 of the headlight 1. Because it significantly reduces local stress, it better protects the headlight 1's own clips, lamp cover and other fragile components, thus extending the life of the headlight 1.

[0051] It is also important to understand that in the prior art, in order to ensure the stability of the vehicle headlight 1 during air tightness testing, locking structures 40 are generally provided on both sides of the air injection pipe 20. However, in this embodiment, by arranging the first locking plate 31 and the second locking plate 32 at intervals in the second direction Y, the stability of the vehicle headlight 1 during air tightness testing can also be ensured. This reduces the number of locking structures 40. Figure 4 As shown, only one snap-fit ​​structure 40 is needed for pre-assembly with the vehicle body, which can reduce costs.

[0052] The stable assembly of the headlight 1 to the body is achieved by bolts or nails. Therefore, a connecting post is also provided on the bottom shell 12. The connecting post has connecting holes for screw or bolt connection. The snap-fit ​​structure 40 on the headlight 1 is used for pre-assembly with the body, which facilitates the subsequent bolt and screw connection between the headlight 1 and the body.

[0053] Since the stability of the detection is now handled by the specially designed and optimized first and second clip plates 31 and 32, the original redundant clip structure 40 on the headlight housing, which was intended to accommodate the detection, is no longer necessary. Figure 4 As shown, only one key snap-fit ​​structure 40 needs to be retained for pre-positioning with the vehicle body. The final secure connection is achieved by the connecting posts and screws / bolts provided on the base shell 12. This "snap-fit ​​pre-positioning, bolt final tightening" method ensures both the convenience of initial assembly and the rigidity and reliability of the final connection.

[0054] In one embodiment, please continue to refer to Figure 5 The card plate 30 has a groove 30a on the side away from the air injection pipe 20 to form a snap-fit ​​position, and the groove 30a penetrates the card plate 30 along the thickness direction of the card plate 30.

[0055] When the snap-fit ​​position is groove 30a, the clamping fixture 2 is fitted with a jaw 21. Groove 30a provides a clear guide and receiving space for the jaw 21 of clamping fixture 2. When there are multiple clamping plates 30, including the first clamping plate 31 and the second clamping plate 32, there can also be two jaws 21. Under the action of the cylinder or other driving device, the two jaws 21 can be inserted into the two grooves 30a respectively, thereby stably clamping the entire air injection pipe 20 and ensuring the stability of the air tightness detection of the vehicle lamp 1. At the same time, the side of the groove 30a can form a larger contact area with the jaw 21, making the clamping force distribution more uniform and preventing damage to the clamping plate 30 due to stress concentration.

[0056] The through-groove 30a forms an open channel structure, making it easier for the claw 21 to extend into the groove 30a. Furthermore, this open structure facilitates intuitive visual confirmation, allowing operators to quickly check if the engagement is in place, thus improving the operability and reliability of assembly and inspection.

[0057] On the other hand, the through groove 30a directly eliminates unnecessary card plate 30 material, achieving effective weight reduction.

[0058] Following on from the above, please continue reading. Figure 5 The direction from the opening of groove 30a to the bottom of groove 30a is constricted.

[0059] The opening of the groove 30a typically has a bevel, which serves as a good guide. When the jaws 21 of the clamping fixture 2 approach, they can be naturally guided to the correct position, achieving fast and accurate docking, thereby reducing alignment time and improving production efficiency.

[0060] Once the chuck 21 enters the bottom of the groove 30a, the constricted design allows the sidewall and the clamping part to form a surface contact or a longer linear contact, which greatly increases the friction and makes the connection more stable. It can effectively resist the vibration and impact that may be generated during airtightness testing and prevent loosening.

[0061] Furthermore, the bottom surface of the groove 30a is a plane. When the clamping force of the claw 21 is applied to the bottom of the groove, this vertical plane can evenly distribute the force to the entire contact surface, effectively avoiding stress concentration and protecting the clamping plate 30.

[0062] The clamping force can be evenly transmitted to the clamping plate 30 through the bottom plane of the groove, and then transmitted along the rigid path of the clamping plate 30, the air injection pipe 20 and the bottom shell 12 in sequence. It will not generate "lateral component force" due to the inclination or curvature of the groove bottom, thereby reducing the possibility of lateral deformation of the clamping plate 30 and ensuring the stability of clamping.

[0063] Compared to complex curved surfaces, a simple vertical plane is easier to achieve in CNC machining or injection molding, and can ensure higher dimensional accuracy and consistency. As long as the contact end of the jaw 21 is flat, it can fit completely with the bottom of the flat groove without the need to customize special clamping parts for the shape of the groove bottom. For example, if the groove bottom is V-shaped, the tooling needs to be matched with V-shaped clamping parts, which has poor compatibility. This reduces the cost for car manufacturers to replace inspection equipment, which in turn reduces production costs and defect rates.

[0064] In one embodiment of this application, please refer to Figure 5 The dimension of the card plate 30 along the depth direction of the groove 30a is h1, and the depth of the groove 30a is h2. h1 and h2 satisfy: 0.3h1≤h2≤0.5h1, where h2 can be 0.3h1, 0.35h1, 0.4h1, 0.45h1, 0.5h1 or any two of the above values.

[0065] By ensuring an appropriate ratio between h1 and h2, it is ensured that the jaws 21 of the clamping fixture 2 have sufficient insertion depth, avoiding the risk of the jaws 21 slipping out of the groove 30a due to insufficient insertion, and ensuring the stability of the headlight 1 position during airtightness testing. The groove 30a of appropriate depth provides a longer guide contact surface, making the clamping smoother and the alignment more accurate. Once clamped in place, it effectively limits the movement of the chuck in the second direction Y and the torsion around the axis of the air injection pipe 20.

[0066] Furthermore, by satisfying a suitable ratio between h1 and h2, it means that the clamping plate 30 has sufficient margin in the depth direction of the groove 30a, ensuring that the clamping plate 30 still has sufficient section modulus in the stress concentration area of ​​the groove 30a to resist bending and torsional loads, and avoids breakage when repeatedly clamped or subjected to impact.

[0067] In another embodiment of this application, please refer to [link / reference]. Figure 5 The card plate 30 has a first end face 30b away from the bottom shell 12, and the air injection pipe 20 has a second end face 20a away from the bottom shell 12. The distance between the first end face 30b and the second end face 20a in the first direction X is h3, and h3 satisfies: 0.8mm≤h3≤1.2mm, where h3 can be any two sets of values ​​between 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm or above.

[0068] During airtightness testing, the external air supply pipe needs to be connected to the air injection pipe 20 on the headlight 1. This connection process typically requires the use of quick couplings or threaded interfaces and may involve rotation, insertion, and removal. This is the most common and efficient method. A quick coupling is installed at the end of the air injection pipe 20 or on the external air supply pipe; this type of coupling usually has a sealing ring and a self-locking mechanism. When connecting, simply push the connector of the air supply equipment in gently to achieve automatic locking and sealing; when disconnecting, it usually only requires a simple operation (such as pressing the clamp) to separate, which is very convenient for quick operation during airtightness testing.

[0069] In some possible embodiments, for vehicle lights 1 requiring higher connection strength or specific application scenarios, the interface of the air injection pipe 20 may be designed as a threaded interface. The external device is screwed onto the air injection pipe 20 through a connector with a corresponding external thread (or internal thread), and a seal is achieved by squeezing a sealing ring or using thread sealant to ensure the stability of the connection between the air injection pipe 20 and the external air supply pipe during air tightness testing.

[0070] Of course, in some possible embodiments, on some highly automated testing lines, customized sealing fixtures may be used. When the entire headlight 1 is placed in the tooling position, the fixture will move automatically, and one of the modules will move precisely and press against the port of the air injection pipe 20. The fixture has a sealing ring and air passage inside, thereby completing the sealing and connection.

[0071] By ensuring that h3 is within a suitable range, the first end face 30b and the second end face 20a have an appropriate distance, preventing the possibility of the gas supply pipe joint or operating tool colliding with or scratching the clamping plate 30 when it is near the gas injection pipe 20 port. In other words, the appropriate distance between the first end face 30b and the second end face 20a in the first direction X provides valuable clearance for the connection operation, ensuring the smoothness of the connection process.

[0072] The appropriate distance between the first end face 30b and the second end face 20a reduces the possibility of wear and tear on the clamping plate 30 by the joints of the gas supply pipe or the operating tools, thereby ensuring the structural strength of the clamping plate 30 to a certain extent.

[0073] In one embodiment of this application, the snap-fit ​​position is located at the end of the air injection tube 20 furthest from the main body 10. Please refer to [link to relevant documentation]. Figure 5 That is, there is a sufficient gap between the locking position and the main body 10. This gap provides the necessary longitudinal operating space for the insertion, locking and even the final withdrawal of the locking claw 21, reducing the possibility that the outer contour of the locking claw 21 will scratch or even collide with the surface of the main body 10 during the movement. The sufficient gap ensures that the locking claw 21 can avoid the main body 10 and smoothly reach the target locking position, preventing assembly interference.

[0074] The clamping point is located at the end of the air injection pipe 20, providing an unobstructed and straightforward operating interface for connecting the clamping jaws 21 of the airtightness testing fixture to the air supply line. Operators or automated equipment can easily approach from the axial direction and complete the clamping and connection, greatly improving assembly efficiency and accuracy.

[0075] In one embodiment of this application, the clamping plate 30 extends to connect with the main body 10, that is, the root of the clamping plate 30 is firmly connected to the main body 10. In this way, the force distribution mode changes from the clamping plate 30 alone to the more stable overall frame. That is, when the claw 21 applies clamping force or is subjected to external vibration, the force can be effectively transmitted through the clamping plate 30 and distributed to the larger main body 10, which can significantly enhance the torsional resistance and overall load-bearing capacity of the structure.

[0076] The clamping force applied by the jaws 21 of the clamping fixture 2 to the clamping plate 30 can be transmitted synchronously through the connection section between the clamping plate 30 and the air injection pipe 20 and the connection section between the clamping plate 30 and the main body 10. The main body 10 can serve as the main force-bearing carrier and can bear more clamping force. The air injection pipe 20 only needs to assist in transmitting the remaining force and does not need to bear overload alone. This can avoid bending deformation of the air injection pipe 20 due to single-bearing force and ensure the stability of the fluid channel function of the air injection pipe 20, that is, ensure smooth inflation or deflation.

[0077] In the case of the main body 10 including the outer lamp cover 11 and the bottom shell 12, the clamping plate 30, the air injection pipe 20 and the bottom shell 12 can be injection molded to a certain extent. The one-piece molding eliminates the connection interface between parts, making the component a continuous whole structure. This seamless connection can more effectively transfer and disperse stress, significantly improving the rigidity and durability of the vehicle lamp 1 under conditions such as vibration and impact.

[0078] For the connection between the air injection pipe 20 and the bottom shell 12, which is crucial for the air tightness test of the headlight 1, the one-piece molding fundamentally avoids the risk of leakage caused by poor assembly, aging of the sealing ring or loose screws, and provides the most reliable guarantee for achieving long-term stable sealing performance.

[0079] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

[0080] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A vehicle light, characterized in that, include: The main body has a mounting cavity and an opening communicating with the mounting cavity; An air injection tube is connected to the main body and communicates with the opening; as well as, A clamping plate is connected to the outer wall of the air injection pipe. A snap-fit ​​position is formed at the end of the clamping plate away from the air injection pipe. The snap-fit ​​position is configured to snap into the clamping fixture when the vehicle light is subjected to air tightness testing.

2. The vehicle light according to claim 1, characterized in that, The subject includes: External lampshade; and The bottom shell is connected to one side of the outer lamp cover and forms a mounting cavity with the outer lamp cover; the air injection pipe is connected to the bottom shell. The outer lamp cover and the bottom shell are arranged along a first direction, and the air injection pipe extends along the first direction.

3. The vehicle light according to claim 2, characterized in that, The card plate has a groove on the side away from the gas injection pipe to form the locking position, and the groove extends through the card plate along the thickness direction of the card plate.

4. The vehicle light according to claim 3, characterized in that, The groove is constricted in the direction from the opening of the groove to the bottom of the groove.

5. The vehicle light according to claim 3, characterized in that, The card plate has a dimension of h1 along the depth direction of the groove, and the depth of the groove is h2. h1 and h2 satisfy: 0.3h1≤h2≤0.5h1.

6. The vehicle light according to claim 3, characterized in that, The bottom surface of the groove is a plane.

7. The vehicle light according to claim 2, characterized in that, The vehicle light has two ends spaced apart along a second direction, and the vehicle light includes multiple plates, the multiple plates including a first plate and a second plate, the first plate and the second plate being arranged spaced apart along the second direction; The first direction intersects with the second direction.

8. The vehicle light according to claim 2, characterized in that, The card plate has a first end face away from the bottom shell, and the air injection pipe has a second end face away from the bottom shell. The distance between the first end face and the second end face in the first direction is h3, and h3 satisfies: 0.8mm≤h3≤1.2mm.

9. The vehicle light according to claim 1, characterized in that, The locking position is located at the end of the air injection tube furthest from the main body.

10. The vehicle light according to claim 1, characterized in that, The card plate extends to connect with the main body.

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