Contact type resistance switch in safety belt lock catch

Abstract

The invention provides a contact type resistance switch in a safety belt lock catch, belongs to the technical field of automobile equipment, and aims to solve the problems that the safety belt lock catch is not recognized in time, potential safety hazards are increased and the safety protection efficiency of the safety belt lock catch is reduced when a user drives under the condition that a 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 invention belongs to the technical field of automobile equipment, and more specifically, particularly relates to a contact resistance switch in a safety 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 lock tongue, and its function is to fix the occupant in the seat when the vehicle collides to reduce the risk of injury. At present, the connection between the buckle and the lock tongue is mainly mechanical. In the unlocking operation, the occupant can achieve it by pressing the button on the lock, which is a simple and easy process. However, this convenience may also lead to the lock being accidentally unlocked under the action of external force, or the lock tongue failing to be properly inserted into the lock buckle due to improper operation during the wearing of the seat belt. If such hidden dangers are not identified in time, the occupant may drive without properly fastening the seat belt, thereby increasing safety hazards and reducing the safety protection effectiveness of the seat belt buckle.

[0003] Therefore, in view of this, the existing structure and defects are studied and improved, and a contact resistance switch in a seat belt buckle is provided, in order to achieve a purpose with more practical value. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a contact resistance switch in a seat belt buckle to solve the problem that driving without properly fastening the seat belt is not recognized in time, which increases safety hazards and reduces the safety protection effectiveness of the seat belt buckle.

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

[0006] A contact resistance switch in a safety belt buckle comprises 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 converging area. The wiring area of ​​the bottom box is provided with a first wiring body and a second wiring body. The ends of the first wiring body and the second wiring body are connected through a terminal. The resistance area of ​​the bottom box is provided with a first resistor, a second resistor, a third resistor and a converging block. One end of the first resistor and the second resistor are connected to the first wiring body and the second wiring body respectively. The third resistor is staggered with the first resistor, and the welding columns on the first resistor, the second resistor and the third resistor converge on the converging block. The converging block is provided with a resistor.

[0008] One end of the first resistor is bent to form a protrusion, and one end of the bottom box is provided with a slot extending inwardly, the protrusion of the first resistor extends in the slot, and the width of the protrusion extending in the slot is smaller than the distance between the end of the first resistor and the end of the third resistor.

[0009] Furthermore, a mounting bar is provided at the bottom of the bottom box, and the bottom of the mounting bar is bent inward to form a buckle shape.

[0010] Furthermore, the wiring area end of the base box is connected to a guide box, the first wiring body and the second wiring body are both clamped in the guide box, and a buckle plate is buckled on the guide box.

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

[0012] Furthermore, the end of the third resistor is bifurcated into two ends, each end being provided with a contact.

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

[0014] Furthermore, a positioning hole is provided on the bottom box, and a positioning column inserted into the positioning hole is provided at the bottom of the panel.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The invention 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, which can limit the current, protect the switch, stabilize the voltage, and regulate the current in the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a stereoscopic diagram of a contact type resistance switch in a safety belt buckle of the present invention.

[0018] Figure 2 It is an exploded view of a contact type resistance switch in a safety belt buckle of the present invention.

[0019] Figure 3 It is a top view of the bottom box of the present invention.

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

[0021] Figure 5 It is a structural schematic diagram of the confluence block in the present invention.

[0022] Figure 6 It is an upward side view of the bottom box of the present invention.

[0023] Figure 7It is a circuit diagram of the present invention.

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

[0025] 1. Base box; 2. Panel; 3. Terminal; 4. First resistor; 5. Second resistor; 6. Third resistor; 7. Connection block; 8. Slot; 101. Mounting strip; 102. Guide box; 103. Buckle plate; 104. Positioning hole; 201. Plug buckle; 202. Positioning column; 203. Clearance groove; 301. First wiring body; 302. Second wiring body; 601. Contact; 401. Riveted end; 402. Spring piece; 403. Welding column. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

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

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example:

[0030] As attached Figure 1 To Attachment Figure 7 As shown:

[0031] The present invention provides a contact type resistance switch in a safety belt buckle, comprising a bottom box 1, a panel 2 is buckled on the top of the bottom box 1, and a resistance switch connected to a lock tongue is formed;

[0032] The bottom box 1 includes a wiring area, a resistance area and a busbar 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. The terminal 3 is used to be inserted into the automobile circuit system.

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

[0034] The third resistor sheet 6 is arranged alternately with the first resistor sheet 4, and the welding pillars 403 on the first resistor sheet 4, the second resistor sheet 5 and the third resistor sheet 6 are converged on the confluence block 7, and a resistor is arranged on the confluence block 7, such as Figure 3 and Figure 5 As shown, the confluence block 7 is clamped in the bottom box 1, and a resistor a is connected between the second resistor sheet 5 and the welding column 403 of the third resistor 6 on the confluence 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 yielding groove 203 is set on the panel 2 corresponding to the position of the confluence block 7;

[0035] One end of the first resistor 4 is bent to form a protrusion, and one end of the bottom box 1 is provided with a slot 8 extending inwardly, and the protrusion of the first resistor 4 extends into the slot 8. When the seat belt buckle is inserted into the lock tongue, the buckle is inserted into the slot 8 to push the protrusion of the first resistor 4, so that the end of the first resistor 4 contacts the end of the third resistor 6, thereby connecting the circuit, and the automobile system displays that the seat belt is in a fastened state. Therefore, the width of the protrusion extending into the slot 8 is smaller than the distance between the end of the first resistor 4 and the end of the third resistor 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, which can limit the current, protect the switch, stabilize the voltage, and regulate the current in the circuit; limit the current to extend the life of the relay and prevent overload current.

[0037] In addition, the end of the third resistor 6 is forked up and down to form two ends, each end is provided with a raised contact 601, and the contact 601 faces the end of the first resistor 4. After the first resistor 4 is squeezed and pushed, its end contacts with the contact 601, and the contact performance is better. The fork of the third resistor 6 can increase the elasticity and can achieve 200% contact, which plays a double insurance role and avoids poor contact.

[0038] Among them, a mounting strip 101 is provided at the bottom of the bottom box 1, and the bottom of the mounting strip 101 is bent inward to form a buckle shape. The mounting strip 101 is used to be buckled on the seat belt lock tongue and combined with it. At the same time, a buckle 201 is also provided on the panel 2 for installation on the bottom box 1. Before installing the panel 2, a positioning hole 104 is opened on the bottom box 1, and a positioning column 202 inserted into the positioning hole 104 is provided at the bottom of the panel 2, which can be used for early positioning.

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

[0040] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order 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 thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A contact resistance switch in a seat belt buckle, characterized in that: It comprises a bottom box (1), the top of which is buckled with a panel (2); The base box (1) comprises a wiring area, a resistance area and a converging area. The wiring area of ​​the base 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 via a terminal (3). The resistance area of ​​the base box (1) is provided with a first resistor (4), a second resistor (5), a third resistor (6) and a converging block (7). One end of the first resistor (4) and the second resistor (5) are connected to the first wiring body (301) and the second wiring body (302) respectively. The third resistor (6) and the first resistor (4) are arranged in an alternating manner. The welding columns (403) on the first resistor (4), the second resistor (5) and the third resistor (6) are converged on the converging block (7). The converging block (7) is provided with a resistor. One end of the first resistor sheet (4) is bent to form a protruding portion, one end of the bottom box (1) is provided with a slot (8) extending inwardly, the protruding portion of the first resistor sheet (4) extends into the slot (8), and the width of the protruding portion extending into 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. A contact resistance switch in a seat belt buckle as claimed in claim 1, characterized in that: A mounting strip (101) is provided at the bottom of the bottom box (1), and the bottom of the mounting strip (101) is bent inwardly to form a buckle shape.

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

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

5. A contact resistance switch in a seat belt buckle as claimed in claim 1, characterized in that: The end of the third resistor sheet (6) is bifurcated into two ends, each end being provided with a contact point (601).

6. A contact resistance switch in a seat belt buckle as claimed in claim 1, characterized in that: The first resistor (4) and the second resistor (5) are both provided with riveted ends (401).

7. A contact resistance switch in a seat belt buckle as claimed in claim 1, characterized in that: A positioning hole (104) is provided on the bottom box (1), and a positioning column (202) inserted into the positioning hole (104) is provided at the bottom of the panel (2).

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