Contact type resistance switch in safety belt lock catch

Abstract

The utility model provides a contact-type resistance switch in a safety belt lock catch, which belongs to the technical field of automobile equipment, and aims to solve the problems that the safety belt lock catch is not timely identified, the potential safety hazard is increased and the safety protection efficiency of the safety belt lock catch is reduced when a user drives under the condition that the safety belt is not correctly fastened, the contact-type resistance switch comprises a bottom box, and a panel is buckled at the top of the bottom box; the bottom box comprises a wiring area, a resistance area and a wire converging area, the wiring area is provided with a first wiring body and a second wiring body which are connected through an end, a first resistor disc, a second resistor disc, a third resistor disc and a converging block are arranged in the resistance area, one end of the first resistor disc and one end of the second resistor disc are connected with the first wiring body and the second wiring body respectively, and the other end of the first resistor disc and the other end of the second resistor disc are connected with the converging block. The welding columns on the three resistor discs are converged on a converging block, and a resistor is arranged on the converging block; one end of the first resistor disc is bent to form a protruding part, and one end of the bottom box is provided with a slot extending inwards.

Description

Technical Field

[0001] The utility model belongs to the technical field of automotive equipment, and more specifically, it particularly relates to a contact resistance switch in a seat belt buckle. Background Art

[0002] Seat belts and their buckle systems are key safety components of automobiles. In this system, one end of the seat belt is connected to the buckle through a tongue, and its function is to fix the occupant to the seat during a vehicle collision to reduce the risk of injury. Currently, the connection method between the buckle and the tongue is mainly mechanical. During the unlocking operation, the occupant can achieve it by pressing a button on the buckle, and this process is simple and easy. However, this convenience may also cause the buckle to be accidentally unlocked under external force, or due to improper operation during the wearing of the seat belt, the tongue fails to be correctly inserted into the buckle. If such hidden dangers are not identified in time, the occupant may drive without properly fastening the seat belt, thus increasing the safety hazards and reducing the safety protection efficiency of the seat belt buckle.

[0003] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a contact resistance switch in a seat belt buckle is provided, in order to achieve a more practical value purpose. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a contact resistance switch in a seat belt buckle to solve the problems that when driving without properly fastening the seat belt, it is not recognized in time, increasing safety hazards and reducing the safety protection efficiency of the seat belt buckle.

[0005] The purpose and effect of a contact resistance switch in a seat belt buckle of the utility model are achieved by the following specific technical means:

[0006] A contact resistance switch in a seat belt buckle includes a bottom box, and a panel is buckled on the top of the bottom box;

[0007] The bottom box includes a wiring area, a resistance area, and a wire connection area. A first wiring body and a second wiring body are arranged in the wiring area of the bottom box. The ends of the first wiring body and the second wiring body are connected by a terminal. In the resistance area of the bottom box, a first resistance sheet, a second resistance sheet, a third resistance sheet, and a connection block are respectively arranged. One end of the first resistance sheet and the second resistance sheet are respectively connected to the first wiring body and the second wiring body. The third resistance sheet is arranged in an interleaved manner with the first resistance sheet, and the welding posts on the first resistance sheet, the second resistance sheet, and the third resistance sheet converge on the connection block. A resistance is arranged on the connection block;

[0008] One end of the first resistor sheet is bent to form a protruding portion. One end of the bottom box is provided with a slot extending inward. The protruding portion of the first resistor sheet extends into the slot, and the width of the protruding portion extending into the slot is smaller than the distance between the end of the first resistor sheet and the end of the third resistor sheet.

[0009] Further, an installation strip is provided at the bottom of the bottom box, and the bottom of the installation strip is bent inward to form a buckle shape.

[0010] Further, a guiding box is connected to the wiring area end of the bottom box. Both the first wiring body and the second wiring body are clamped in the guiding box, and a clamping plate is buckled on the guiding box.

[0011] Further, a protruding contact is provided at the end of the third resistor sheet, and the contact faces the end of the first resistor sheet.

[0012] Further, the end of the third resistor sheet is bifurcated up and down to form two ends, and each end is provided with a contact.

[0013] Further, both the first resistor sheet and the second resistor sheet are provided with riveting ends.

[0014] Further, positioning holes are provided on the bottom box, and positioning posts inserted into the positioning holes are provided at the bottom of the panel.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] This utility model combines the advantages of a contact switch that is simple and easy to control and realizes the on-off of the circuit through physical contact. On this basis, a resistor is added, and the resistor can play the roles of limiting current, protecting the switch, stabilizing voltage, and regulating current in the circuit. Description of the Drawings

[0017] Figure 1 is a perspective view of a contact resistance switch in a seat belt buckle of the present utility model.

[0018] Figure 2 is an exploded view of a contact resistance switch in a seat belt buckle of the present utility model.

[0019] Figure 3 is a top view of the bottom box in the present utility model.

[0020] Figure 4 is a structural schematic diagram of the panel in the present utility model.

[0021] Figure 5 is a structural schematic diagram of the connection block in the present utility model.

[0022] Figure 6 is a bottom side view of the bottom box in the present utility model.

[0023] Figure 7 This is the circuit diagram of the present utility model.

[0024] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0025] 1. Bottom box; 2. Panel; 3. End head; 4. First resistor sheet; 5. Second resistor sheet; 6. Third resistor sheet; 7. Confluence block; 8. Slot; 101. Mounting strip; 102. Guide box; 103. Buckle plate; 104. Positioning hole; 201. Plug buckle; 202. Positioning post; 203. Relief groove; 301. First wiring body; 302. Second wiring body; 601. Contact point; 401. Riveting end; 402. Spring piece; 403. Welding post. Specific embodiments

[0026] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0027] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Example:

[0030] As shown in Figure 1 to Figure 7 shown:

[0031] The present utility model provides a contact resistance switch in a seat belt buckle, including a bottom box 1, and a panel 2 is buckled on the top of the bottom box 1 to form a resistance switch connected to the lock tongue.

[0032] The bottom box 1 includes a wiring area, a resistor area, and a wire connecting area. The wiring area of the bottom box 1 is provided with a first wiring body 301 and a second wiring body 302. The ends of the first wiring body 301 and the second wiring body 302 are connected by a terminal 3, and the terminal 3 is used to insert into the automotive circuit system;

[0033] In the resistor area of the bottom box 1, a first resistor sheet 4, a second resistor sheet 5, a third resistor sheet 6, and a connection block 7 are respectively arranged. One end of the first resistor sheet 4 and the second resistor sheet 5 are respectively connected to the first wiring body 301 and the second wiring body 302. As Figure 2 and Figure 3 shown, both the first resistor sheet 4 and the second resistor sheet 5 are provided with riveting ends 401 which are riveted corresponding to the first wiring body 301 and the second wiring body 302;

[0034] The third resistor sheet 6 is arranged in a staggered manner with the first resistor sheet 4, and the welding posts 403 on the first resistor sheet 4, the second resistor sheet 5, and the third resistor sheet 6 converge on the connection block 7. A resistor is arranged on the connection block 7. As Figure 3 and Figure 5 shown, the connection block 7 is clamped in the bottom box 1, and a resistor a is connected between the welding posts 403 of the second resistor sheet 5 and the third resistor 6 on the connection block 7, and a resistor b is connected between the first resistor 4 and the third resistor 6. The resistance value of the resistor a is less than the resistance value of the resistor b. In this embodiment, 100Ω and 300Ω are taken as examples; a relief groove 203 is arranged on the panel 2 corresponding to the position of the connection block 7;

[0035] One end of the first resistor sheet 4 is bent to form a protruding part. A slot 8 extending inward is opened at one end of the bottom box 1. The protruding part of the first resistor sheet 4 extends in the slot 8. During the process of the seat belt buckle being inserted into the lock tongue, the buckle is snapped into the slot 8 to push the protruding part of the first resistor sheet 4, so that the end of the first resistor sheet 4 contacts the end of the third resistor sheet 6, thereby turning on the circuit, and the automotive system will display that the seat belt is fastened. Therefore, the width of the protruding part extending in the slot 8 is less than the distance between the end of the first resistor sheet 4 and the end of the third resistor sheet 6.

[0036] This embodiment combines the advantages of the contact switch, which is simple and easy to control and realizes the on-off of the circuit through physical contact. On this basis, a resistor is added. The resistor can play the roles of restricting current, protecting the switch, stabilizing voltage, and regulating current in the circuit; restricting the magnitude of the current to extend the life of the relay and prevent overcurrent.

[0037] In addition, the end of the third resistor sheet 6 bifurcates up and down to form two ends, and each end is provided with a protruding contact point 601. The contact point 601 faces the end of the first resistor sheet 4. After the first resistor sheet 4 is squeezed and pushed, its end contacts the contact point 601, and the contact performance is better. Moreover, the bifurcation of the third resistor sheet 6 can increase elasticity and can achieve 200% contact, playing a double insurance role to avoid poor contact.

[0038] Among them, an installation strip 101 is arranged at the bottom of the bottom box 1. The bottom of the installation strip 101 is bent inwards to form a buckle shape. The installation strip 101 is used to buckle on the seat belt tongue to be combined with it. At the same time, a buckle 201 is also arranged on the panel 2 for installation on the bottom box 1. Before installing the panel 2, positioning holes 104 are opened on the bottom box 1, and positioning columns 202 inserted into the positioning holes 104 are arranged at the bottom of the panel 2, which can be used for pre-positioning.

[0039] A guiding box 102 is connected to the wiring area end of the bottom box 1. Both the first wiring body 301 and the second wiring body 302 are clamped in the guiding box 102, and a buckle plate 103 is buckled on the guiding box 102. The guiding box 102 can change the wiring harness direction led out by the first wiring body 301 and the second wiring body 302, so that the end 3 can be more smoothly connected to the vehicle circuit system. At the same time, the guiding box 102 and the buckle plate 103 can stabilize the wiring harness to avoid the loosening of the internal contact of the bottom box 1 caused by external pulling.

[0040] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A contact resistance switch in a seat belt buckle, characterized in that: It includes a bottom box (1), and a panel (2) is buckled on the top of the bottom box (1); The bottom box (1) includes a wiring area, a resistor area and a wire collecting area. A first wiring body (301) and a second wiring body (302) are arranged in the wiring area of the bottom box (1). The ends of the first wiring body (301) and the second wiring body (302) are connected by a terminal (3). A first resistor sheet (4), a second resistor sheet (5), a third resistor sheet (6) and a connection block (7) are respectively arranged in the resistor area of the bottom box (1). One end of the first resistor sheet (4) and the second resistor sheet (5) are respectively connected to the first wiring body (301) and the second wiring body (302). The third resistor sheet (6) is arranged in a staggered manner with the first resistor sheet (4), and the welding posts (403) on the first resistor sheet (4), the second resistor sheet (5) and the third resistor sheet (6) converge on the connection block (7). A resistor is arranged on the connection block (7); One end of the first resistor sheet (4) is bent to form a protruding part. A slot (8) extending inwards is opened at one end of the bottom box (1). The protruding part of the first resistor sheet (4) extends in the slot (8), and the width of the protruding part extending in the slot (8) is smaller than the distance between the end of the first resistor sheet (4) and the end of the third resistor sheet (6).

2. The contact resistance switch in a seat belt buckle according to claim 1, characterized in that: An installation strip (101) is arranged at the bottom of the bottom box (1), and the bottom of the installation strip (101) is bent inwards to form a buckle shape.

3. The contact resistance switch in a seat belt buckle as described in claim 1, wherein: A guiding box (102) is connected to the wiring area end of the bottom box (1). The first wiring body (301) and the second wiring body (302) are both clamped in the guiding box (102), and a clamping plate (103) is buckled on the guiding box (102).

4. The contact resistance switch in a seat belt buckle as claimed in claim 1, characterized in that: A protruding contact point (601) is arranged at the end of the third resistor sheet (6), and the contact point (601) faces the end of the first resistor sheet (4).

5. The contact resistance switch in a seat belt buckle as claimed in claim 1, characterized in that: The end of the third resistor sheet (6) branches into two ends up and down, and a contact point (601) is arranged at each end.

6. The contact resistance switch in a seat belt buckle according to claim 1, characterized in that: Both the first resistor sheet (4) and the second resistor sheet (5) are provided with riveting ends (401).

7. The contact resistance switch in a seat belt buckle as described in claim 1, characterized in that: Positioning holes (104) are opened on the bottom box (1), and positioning posts (202) inserted into the positioning holes (104) are arranged at the bottom of the panel (2).

Images