A lighted seat belt latch

Abstract

The utility model relates to the technical field of safety belt mortise lock of light emission discloses a safety belt mortise lock of light emission, including lower cover, the lower cover middle part fixed setting has the PCB board, the PCB board is connected with the wiring harness through the connector, the wiring harness top is provided with the upper cover, the upper cover with lower cover carries out the fixed wiring harness, be provided with the buckle on the wiring harness, the buckle is connected in the corresponding clamping groove on the lower cover, the wiring harness is fixed on the lower cover through the wiring harness support. The utility model discloses the wiring harness is independent spare part, can more flexible matching different demand, lock body as the standard configuration assembly part management, reduces the management difficulty, reduced the difficulty of antistatic package and the risk that the wiring harness and PCB board welding point are hurt in the logistics process, the buckle strengthens the tensile strength of the wiring harness, the wiring harness support avoids the contact of wiring harness and metal spare, and the wire slot avoids the possibility that the wiring harness and the moving piece contact.

Description

Technical Field

[0001] This utility model relates to the field of luminous seat belt lock technology, specifically a luminous seat belt lock. Background Technology

[0002] The seatbelt latch is a safety device in automobiles, fixed to the vehicle body, used to insert the seatbelt latch and lock it securely. When the seatbelt latch is engaged, the seatbelt tightly wraps around the occupant's vital areas, effectively mitigating the immense impact force caused by inertia in dangerous scenarios such as emergency braking, sudden collisions, or sharp turns. This firmly secures the occupant to the seat, preventing violent collisions with hard objects inside the vehicle such as the steering wheel, dashboard, and windows, and also preventing the occupant from being ejected from the passenger compartment. It is a core component for ensuring the safety of drivers and passengers. However, existing seatbelt latch designs have significant shortcomings; their insertion ports are often made of a similar color and material to the latch body, lacking prominent visual markings. When occupants need to insert the latch into the seatbelt lock, they can manage to do so with difficulty in well-lit environments. However, in low-light conditions (such as driving at night, in underground parking lots, or inside tunnels), the visual contrast between the insertion point and the surrounding environment is extremely low. Occupants often need to repeatedly feel their way to locate the position, which not only makes the process of putting on the seatbelt difficult and time-consuming but may also distract the driver and increase driving safety hazards. This problem is particularly prominent for elderly occupants with poor eyesight or novice drivers who are not familiar with the operation, making it difficult to meet users' needs for a convenient and safe driving experience.

[0003] A search revealed prior art (application number: CN202421342523.X), which describes a "seatbelt latch". This utility model includes a housing and a light-emitting device. The housing defines an insertion opening. The light-emitting device includes a light-emitting component, a light guide, and a diffuser. The light-emitting component emits light. A first portion of the light guide is adjacent to the light-emitting component, and a second portion of the light guide extends into the insertion opening area. The diffuser is adjacent to the second portion of the light guide, and the light guide guides the light to the diffuser, which diffuses the light. This utility model's seatbelt latch, through the light-emitting device, forms a light mark in the insertion opening area of ​​the housing to indicate the position of the insertion opening, allowing occupants to quickly locate the insertion opening and insert the seatbelt latch, thereby improving the convenience of wearing a seatbelt.

[0004] However, while existing technologies improve the convenience of wearing seat belts, they still have some shortcomings: the connection method between the PCB and the wiring harness is not clearly defined, the wiring harness length management and the risk of mixing materials are not addressed, and how to protect the solder joints after the PCB and wiring harness are soldered to prevent the wire core from coming out is not mentioned. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a luminous seatbelt lock.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a luminous seat belt latch, including a lower cover, a PCB board fixedly disposed in the middle of the lower cover, the PCB board being connected to a wire harness via a connector, an upper cover being disposed above the wire harness, the upper cover and the lower cover fixing the wire harness, a buckle being disposed on the wire harness, the buckle engaging in a corresponding slot on the lower cover, and the wire harness being fixed to the lower cover via a wire harness bracket.

[0007] As a further description of the above technical solution:

[0008] The PCB board integrates LED beads, the PCB board is polygonal and extends to the side of the lower cover, and the PCB board near the lower cover integrates a connector.

[0009] As a further description of the above technical solution:

[0010] The lower cover and the upper cover clamp the wire harness through symmetrically arranged wire grooves.

[0011] As a further description of the above technical solution:

[0012] The wire harness is snapped onto the wire harness bracket, and the wire harness extends to the outside through the wire harness outlet in the middle of the lock body.

[0013] As a further description of the above technical solution:

[0014] The wire harness bracket is fixedly installed at the end of the lower cover away from the PCB board. The wire harness bracket has a tapered shape and is used to fix wire harnesses of different diameters.

[0015] As a further description of the above technical solution:

[0016] A slotted seat is provided on the top of the PCB board, and a lock cylinder is installed on the PCB board.

[0017] As a further description of the above technical solution:

[0018] The upper cover and the lower cover are fixed by two sets of symmetrically arranged double-ended studs, which are threadedly connected to the upper cover and the lower cover.

[0019] As a further description of the above technical solution:

[0020] A light-emitting cover is provided above the upper cover and the lower cover, a button is provided on the top of the light-emitting cover, and a steel plate support is provided below the upper cover and the lower cover.

[0021] This utility model has the following beneficial effects:

[0022] 1. As an independent component, the wiring harness can flexibly adapt to different usage needs, greatly enhancing the product's versatility and adaptability; the lock body, as a standard configuration assembly component, effectively simplifies the component management process and reduces management difficulty.

[0023] 2. The upper and lower covers are securely fixed using two sets of symmetrically arranged double-headed studs, thereby reducing the difficulty of anti-static packaging and the risk of damage to the solder joints between the wire harness and the PCB board during logistics. This also simplifies the overall assembly process, significantly reducing equipment complexity and saving time and labor costs in production and installation. Furthermore, a tapered wire harness bracket is fixed to the end of the lower cover furthest from the PCB board, allowing for the fixing of wire harnesses of different diameters, further enhancing assembly flexibility and adaptability.

[0024] 3. The clips on the wire harness engage with the corresponding slots on the lower cover, effectively enhancing the tensile strength of the wire harness and preventing damage due to pulling during use. The wire harness is fixed to the lower cover by the wire harness bracket, avoiding direct contact between the wire harness and metal parts, reducing wear on the cable from metal parts, and extending the service life of the wire harness.

[0025] 4. The lower cover and the upper cover clamp the wire harness through symmetrically arranged wire grooves, avoiding the possibility of the wire harness coming into contact with moving parts, preventing the wire harness from being scratched or squeezed by the moving parts during operation, and ensuring the normal operation of the wire harness. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an luminous seatbelt latch proposed in this utility model;

[0027] Figure 2 This is a partial schematic diagram of a luminous seat belt latch proposed in this utility model;

[0028] Figure 3 This is a top view of a luminous seatbelt latch proposed in this utility model;

[0029] Figure 4 This is a cross-sectional view of a luminous seatbelt latch proposed in this utility model.

[0030] Legend:

[0031] 1. Button; 2. Upper cover; 3. Wiring harness; 4. Steel plate bracket; 5. Lower cover; 6. Light-emitting cover; 7. Double-ended stud; 8. PCB board; 9. Slotted seat; 10. Connector; 11. Buckle; 12. Wiring harness bracket. Detailed Implementation

[0032] 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.

[0033] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Example 1:

[0035] like Figures 1 to 4 As shown, this embodiment provides a light-emitting seat belt latch, including: a lower cover 5, a PCB board 8 fixedly disposed in the middle of the lower cover 5, the PCB board 8 being connected to a wire harness 3 via a connector 10, an upper cover 2 disposed above the wire harness 3, the upper cover 2 and the lower cover 5 fixing the wire harness 3, a buckle 11 disposed on the wire harness 3, the buckle 11 being engaged in a corresponding slot on the lower cover 5, and the wire harness 3 being fixed to the lower cover 5 via a wire harness bracket 12.

[0036] In this embodiment, the upper cover, lower cover, PCB board, and wiring harness constitute a light-emitting seat belt latch according to this application.

[0037] Understandable Figure 1 The diagram only schematically illustrates some of the components included in the seatbelt latch; the actual shape, size, location, and construction of these components are not subject to change. Figure 1 The limitations mean that seatbelt locking mechanisms can also include, compared to... Figure 1 More or fewer parts.

[0038] In this embodiment, the lower cover 5 is made of ABS plastic. As the basic load-bearing structure of the entire lock, the lower cover 5 has pre-set mounting slots and positioning posts that match the PCB board 8, precisely defining the installation position of the PCB board 8 and preventing displacement during subsequent assembly and use. The PCB board 8 is connected to the wire harness 3 via connector 10, and the connector 10 has a foolproof structure to ensure correct installation in both directions and guarantee the stability of power transmission. When the upper cover 2 and lower cover 5 are assembled, the protrusions and grooves on the edges of the upper cover 2 and lower cover 5 interlock, not only providing a wrapping fixation for the wire harness 3 located in the middle, but also using their rigid structure to offset the impact of external vibrations on the wire harness 3. The clips 11 on the wiring harness 3 are made of elastic injection-molded material, and their shape perfectly matches the slots of the lower cover 5. When snapped in, the clips 11 will deform slightly and firmly lock into the slots, forming the first layer of fixation. At the same time, the wiring harness bracket 12 is fixed to the pre-set screw holes of the lower cover 5 with screws. The arc-shaped groove on the inner side of the wiring harness bracket 12 fits tightly against the outer wall of the wiring harness 3, providing a second layer of fixation for the wiring harness 3 from another position. The double fixation structure complements each other and further restricts the displacement of the wiring harness. Through the precise positioning of the PCB board 8 by the lower cover 5 and the coordinated fixation of the wiring harness 3 by the upper cover 2 and the lower cover 5, the displacement of components due to bumps during vehicle operation can be effectively prevented, thus ensuring that the locking and unlocking functions of the latch are not affected.

[0039] The injection-molded clips 11 on the wiring harness 3 can withstand a certain amount of tension. The pulling force applied to the wiring harness 3 is transmitted to the lower cover 5 through the clips 11, and then to the slotted seat 9 of the lock cylinder through the lower cover 5. This prevents the pulling force from being directly transmitted to the solder joints of the wiring harness 3 and the PCB board 8, thus protecting the solder joints. The dual fixing of the clips 11 and the wiring harness bracket 12 significantly reduces the shaking amplitude of the wiring harness 3, preventing long-term friction between the wiring harness 3 and surrounding metal parts or plastic structures, which could cause damage to the outer sheath and thus avoid short circuits, open circuits, and other faults. This optimized tension transmission path minimizes the tension on the solder joints, preventing problems such as desoldering or poor soldering due to long-term stress or sudden large tension. The protective function of the clips 11 significantly extends the service life of the solder joints, ensuring the continuous stability of the lock's lighting function and core functions, while reducing the product return rate due to solder joint problems and increasing user trust in the product.

[0040] Specifically, LED beads are integrated on the PCB board 8. The PCB board 8 is polygonal and extends to the side of the lower cover 5. A connector 10 is integrated on the side of the PCB board 8 near the lower cover 5.

[0041] In this embodiment, the PCB board 8 integrates LED beads to provide a light source. Its polygonal design allows for full utilization of the internal space of the lower cover 5, extending to the side and integrating a connector 10 on the side. This shortens the length of the internal wiring harness within the lock body. Furthermore, the PCB board 8 and the wiring harness 3 are treated as independent components, connected via the connector 10. The integrated LED beads enable the lock to emit light, making it easier for users to locate the lock in low-light conditions and improving ease of use. The polygonal structure and side connector layout reduce the length of the internal wiring harness. To meet different customer wiring harness length requirements, only the wiring harness configuration needs to be changed, making the PCB board 8 a standardized component, improving product versatility and adaptability. Simultaneously, the independent component design reduces the difficulty of anti-static packaging and the risk of damage to the solder joints between the wiring harness and the PCB board during logistics.

[0042] Specifically, the lower cover 5 and the upper cover 2 clamp the wire harness 3 through symmetrically arranged wire grooves.

[0043] As a preferred implementation, the lower cover 5 and the upper cover 2 have independent symmetrical wire grooves. During assembly, the wire groove structure is used to clamp the wire harness 3, providing dedicated routing space for the wire harness 3. This makes the wire management process simpler and more standardized, preventing the wire harness 3 from coming out of the wire groove or encroaching on the space of the lock cylinder moving parts. This effectively avoids interference between the wire harness 3 and the lock cylinder moving parts, ensuring the normal operation of core functions such as locking and unlocking of the lock.

[0044] Specifically, the wire harness 3 is clipped onto the wire harness bracket 12, and the wire harness 3 extends outward through the wire harness outlet in the middle of the lock body.

[0045] It should be noted that the wiring harness bracket 12 provides an additional fixing point for the wiring harness 3. After the wiring harness 3 is clipped onto it, it extends from the middle outlet of the lock body, preventing the wiring harness 3 from directly contacting the sharp edges of the metal parts inside the lock body. This prevents the wiring harness 3 from rubbing against the sharp edges of the metal parts, reducing the risk of circuit failure, ensuring the transmission stability of the wiring harness 3, and thus ensuring the continuous reliability of the lock's light-emitting function and overall performance.

[0046] Specifically, the wire harness bracket 12 is fixedly installed at the end of the lower cover 5 away from the PCB board 8. The wire harness bracket 12 has a tapered shape and is used to fix wire harnesses of different diameters.

[0047] As a preferred implementation, the wire harness bracket 12 is fixed to the end of the lower cover 5 away from the PCB board 8 by screws. This position avoids the installation area of ​​components such as the PCB board 8 and connector 10, effectively avoiding spatial conflicts and making the internal layout of the lock body more compact and reasonable. The wire harness bracket 12 adopts a gradient design, with a larger opening at the entrance to facilitate quick insertion of the wire harness 3, and the opening gradually narrows from the middle to the exit. The inner wall of the bracket is made of elastic material. When wire harnesses 3 of different diameters are inserted, the elastic inner wall will generate corresponding compression force according to the diameter of the wire harness, thereby firmly fixing the wire harness. At the same time, the inside of the wire harness bracket 12 is also equipped with anti-slip texture, which can further enhance the friction between the wire harness and prevent the wire harness 3 from slipping during use. The position design of the wire harness bracket 12 makes full use of the unused space of the lower cover 5, optimizes the internal space utilization of the lock body, reserves sufficient space for the installation of other components, and facilitates later assembly and maintenance. The tapered design of the wire harness bracket 12 breaks the limitation of traditional brackets that only accommodate a single specification of wire harness. It is compatible with multiple wire harnesses within a certain diameter range, eliminating the need to develop molds and manufacture brackets separately for different customers' wire harness diameter requirements, significantly reducing production costs and R&D cycles. At the same time, this compatibility also expands the product's applicability, enabling the illuminated seat belt latch to adapt to the needs of different vehicle models and configurations, thus enhancing the product's market competitiveness.

[0048] Example 2:

[0049] Specifically, a slotted seat 9 is provided above the PCB board 8, and a lock cylinder is installed on the PCB board 8.

[0050] It should be noted that the slotted seat 9 provides mounting support for the lock cylinder, ensuring its stable installation above the PCB board 8. As the core functional component of the bolt lock, the lock cylinder works in conjunction with other components to achieve locking and unlocking actions. Ensuring the lock cylinder is securely installed prevents it from shifting during operation, ensuring accurate locking and unlocking functions and providing reliable protection for users using seat belts safely.

[0051] Specifically, the upper cover 2 and the lower cover 5 are fixed by two sets of symmetrically arranged double-ended studs 7, which are threadedly connected to the upper cover 2 and the lower cover 5.

[0052] In this embodiment, utilizing the threaded connection characteristics of the double-ended studs 7, the upper cover 2 and the lower cover 5 are tightly connected through two symmetrically arranged sets of studs, forming a stable lock body shell structure. This enhances the stability and firmness of the connection between the upper cover 2 and the lower cover 5, preventing the covers from loosening due to vibration or other factors during use, ensuring the safety of the internal components of the lock body, and extending the overall service life of the lock.

[0053] Specifically, a light-emitting cover 6 is provided above the upper cover 2 and the lower cover 5, a button 1 is provided on the top of the light-emitting cover 6, and a steel plate bracket 4 is provided below the upper cover 2 and the lower cover 5.

[0054] In this embodiment, the light-emitting cover 6 covers the top of the cover, protecting the internal light-emitting element and refracting and scattering light. The button 1 is located on the top for easy user operation. The steel plate bracket 4 is installed below the cover, enhancing the overall structural strength of the lock body. The light-emitting cover 6 protects the internal components from external damage, making the light more uniform and softer, improving the user experience; the button 1 is easy to operate, improving the convenience of using the lock; the steel plate bracket 4 makes the lock body more resistant to external impacts and less prone to deformation, ensuring the structural stability of the lock during installation and use.

[0055] Working principle: The light-emitting component is an LED integrated on a PCB board 8. The PCB board 8 is polygonal, fixed in the middle of the lower cover 5 and extending to the side of the lower cover 5. The PCB board 8 on the side is connected to the power supply harness 3 through a connector 10. The upper cover 2 and the lower cover 5 clamp the harness 3 with symmetrical wire grooves to form a space to accommodate the harness 3 and avoid interference with the moving parts of the lock cylinder. The two are also fixed by two sets of symmetrical double-headed studs 7. A slotted seat 9 is provided on the upper part of the lower cover 5 and the lock cylinder is installed on the PCB board 8. The harness 3 has a snap-fit ​​11, which snaps into the corresponding slot of the lower cover 5. In the middle, the pulling force of the wire harness 3 can be sequentially transmitted to the slotted seat 9 of the lower cover 5 and the lock cylinder, protecting the solder joints of the wire harness 3 and the PCB board 8; in addition, the lower cover 5 has a wire harness bracket 12 with a tapered shape at the end away from the PCB board 8, and the wire harness 3 is fixed on the bracket and extends from the wire harness outlet in the middle of the lock body to the outside, which not only avoids the wire harness 3 from direct contact with the sharp edge of the metal parts to prevent wear, but also meets the fixing requirements of wire harnesses of different diameters. At the same time, the upper cover 2 and the lower cover 5 are provided with a light-emitting cover 6 and a top button 1, and a steel plate bracket 4 is provided below, which together form a complete light-emitting safety belt latch structure.

[0056] All wiring harnesses are electrically connected to the PLC controller, which is electrically connected to an external power supply. The PLC controller facilitates power control of electrical equipment, ensuring that the equipment is powered on when needed, thus avoiding situations where power cannot be supplied when required.

[0057] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A luminous seatbelt latch, characterized in that: The device includes a lower cover (5), a PCB board (8) is fixedly installed in the middle of the lower cover (5), the PCB board (8) is connected to the wire harness (3) through a connector (10), an upper cover (2) is installed above the wire harness (3), the upper cover (2) and the lower cover (5) fix the wire harness (3), a buckle (11) is installed on the wire harness (3), the buckle (11) is snapped into the corresponding slot on the lower cover (5), and the wire harness (3) is fixed on the lower cover (5) through a wire harness bracket (12).

2. The luminous seatbelt latch according to claim 1, characterized in that: The PCB board (8) integrates LED beads. The PCB board (8) is polygonal and extends to the side of the lower cover (5). A connector (10) is integrated on the side of the PCB board (8) near the lower cover (5).

3. A luminous seatbelt latch according to claim 2, characterized in that: The lower cover (5) and the upper cover (2) clamp the wire harness (3) through symmetrically arranged wire grooves.

4. A luminous seatbelt latch according to claim 3, characterized in that: The wire harness (3) is snapped onto the wire harness bracket (12), and the wire harness (3) extends outward through the wire harness outlet in the middle of the lock body.

5. A luminous seatbelt latch according to claim 4, characterized in that: The wire harness bracket (12) is fixedly installed at one end of the lower cover (5) away from the PCB board (8). The wire harness bracket (12) has a constricted shape and is used to fix wire harnesses of different diameters.

6. A luminous seatbelt latch according to claim 5, characterized in that: A slotted seat (9) is provided above the PCB board (8), and a lock cylinder is installed on the PCB board (8).

7. A luminous seatbelt latch according to claim 3, characterized in that: The upper cover (2) and the lower cover (5) are fixed by two sets of symmetrically arranged double-headed studs (7), and the double-headed studs (7) are threadedly connected to the upper cover (2) and the lower cover (5).

8. A luminous seatbelt latch according to claim 7, characterized in that: A light-emitting cover (6) is provided above the upper cover (2) and the lower cover (5). A button (1) is provided on the top of the light-emitting cover (6). A steel plate bracket (4) is provided below the upper cover (2) and the lower cover (5).

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