Switch base for safety belt

Abstract

The utility model relates to the technical field of automobile parts, in particular to a switch base for a safety belt. In order to improve the accuracy of a central control system of a vehicle for judging whether a driver and passengers wear the safety belt, the utility model provides a switch seat for the safety belt, and a buckle base is provided with a mounting groove for mounting an induction mechanism; in the sensing mechanism, a Hall switch is installed in an installation groove and is connected with a switch wire harness. The sliding piece comprises a sliding plate and sliding clamping feet, the sliding plate is provided with a positioning sliding groove used for installing the magnet, and the sliding clamping feet are clamped on the two sides of the buckle base and connected with the sliding plate; the magnet is installed in the positioning sliding groove and pressed on the Hall switch, and the reset elastic piece is clamped between the sliding plate and the wiring end of the buckle base. When the safety belt and the switch base are in a separated state, the magnet and the Hall switch generate an electromagnetic induction signal when the Hall switch is powered on. By adopting the safety seat for the safety belt, the accuracy of judging the wearing condition of the safety belt by a vehicle central control system can be improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a switch holder for seat belts. Background Technology

[0002] For traditional car seat belts, the vehicle's central control system typically determines whether the seat belt is connected to the switch based on the contact state of two metal contacts in the seat belt sensor, i.e., whether the occupant is wearing the seat belt. However, because the contact and disconnection of the two metal contacts in the seat belt sensor is mechanical, the vehicle's central control system may not be able to accurately determine whether the seat belt is connected to the switch, thus failing to accurately determine whether the occupant is wearing the seat belt. Utility Model Content

[0003] To improve the accuracy of the vehicle's central control system in determining whether passengers are wearing seat belts, this utility model proposes a seat belt switch holder, which includes a buckle base and a sensing mechanism, wherein the buckle base is provided with a mounting groove for mounting the sensing mechanism.

[0004] The sensing mechanism includes a Hall switch, a slider, a magnet, and a reset elastic element. The Hall switch is installed in the mounting slot and connected to the switch wiring harness. The slider includes a sliding plate and a sliding foot. The sliding plate has a positioning groove for mounting the magnet. The sliding foot is engaged with both sides of the buckle base and connected to the sliding plate. The magnet is installed in the positioning groove and pressed against the Hall switch. The reset elastic element is sandwiched between the sliding plate and the wiring terminals of the buckle base. When the seat belt is separated from the switch base, the magnet generates an electromagnetic induction signal with the Hall switch when the Hall switch is energized. When the seat belt buckle is connected to the switch base, the buckle pushes the sliding foot towards the wiring terminals of the switch base, and the magnet moves away from the Hall switch along with the slider, causing the electromagnetic induction signal to disappear.

[0005] The switch holder for seat belts of this utility model is equipped with a sensing mechanism. When the seat belt is separated from the switch holder, the magnet pressed against the Hall switch generates an electromagnetic signal that is transmitted to the vehicle's central control system. When the seat belt is connected to the switch holder, the magnet, pushed by the seat belt buckle, moves away from the Hall switch along with the sliding component, and the electromagnetic signal generated by the magnet and the energized Hall switch and transmitted to the vehicle's central control system disappears. Therefore, when a vehicle equipped with the switch holder for seat belts of this utility model is started, the sensing mechanism in the switch holder is energized, i.e., the Hall switch is energized. When the driver or passenger is not wearing a seat belt (i.e., the seat belt is separated from the switch holder), the sensing mechanism generates an electromagnetic signal that is transmitted to the vehicle's central control system. When the driver or passenger is wearing a seat belt (i.e., the seat belt is connected to the switch holder buckle), no electromagnetic signal is generated in the sensing mechanism, and therefore no electromagnetic signal is transmitted to the vehicle's central control system. Therefore, after the vehicle is started, the vehicle's central control system only needs to determine whether the driver and passengers are wearing seat belts by whether it receives the electromagnetic induction signal transmitted from the switch socket of the seat belt of this utility model, which effectively improves the judgment accuracy of the vehicle's central control system.

[0006] Preferably, the buckle base includes a buckle shell and a buckle cover. The mounting groove is located on the buckle shell, and the buckle cover covers the mounting groove and is connected to the buckle shell. A positioning plate is provided on the inner side wall of the mounting groove near the insertion end of the buckle base. When the Hall switch is installed in the mounting groove, the positioning plate locks the two sides of the Hall switch. In this way, when assembling the switch holder for the safety belt of this utility model, the positioning plate can be used to lock the Hall switch installed in the mounting groove, preventing the Hall switch from shifting in the mounting groove or even falling out of the mounting groove, thus affecting the assembly effect of the switch holder for the safety belt of this utility model. Further, a limiting protrusion and a positioning groove are provided on the side wall of the mounting groove, and the positioning groove is located between the limiting protrusion and the wiring terminal of the buckle base. When the sliding plate in the sliding member is installed in the mounting groove, the part of the sliding foot near the sliding plate is located in the positioning groove and can slide in the positioning groove. In this way, during use, the slider can slide back and forth in the positioning groove, which makes it convenient for the slider to move the magnet away from the Hall switch or reset to the Hall switch.

[0007] Preferably, a branch post is provided in the mounting groove, and the branch post is close to the wiring terminal of the snap-fit ​​base. This branch post separates the switch wiring harness connected to the Hall switch, preventing interference between the input and output currents of the Hall switch and thus avoiding impact on the accuracy of the vehicle's central control system. Furthermore, a connection hole is provided at the top of the branch post. This connection hole at the top of the branch post allows for insertion and connection with the positioning buckle on the snap-fit ​​cover. This improves the connection stability between the snap-fit ​​cover and the snap-fit ​​housing, and also allows for positioning of the snap-fit ​​cover using the branch post and positioning buckle, improving the assembly accuracy and efficiency of the snap-fit ​​cover.

[0008] Preferably, the mounting groove is provided with a reset positioning post and a reset receiving groove for accommodating the reset elastic element. The reset positioning post is located between the reset receiving groove and the branch post, the central axis of the reset positioning post is perpendicular to the axis of the branch post, and the free end of the reset positioning post faces the reset receiving groove. The sliding plate is provided with a sliding reset groove, which is located above the reset receiving groove, and the bottom of the sliding reset groove is provided with a reset adjusting post facing the reset positioning post. In this way, when assembling the switch holder for the safety belt of this utility model, the reset positioning post in the mounting groove and the reset adjusting post on the sliding plate can be used to install the reset elastic element, and at the same time, the reset receiving groove in the mounting groove and the sliding reset groove on the sliding plate can be used to position the reset elastic element, avoiding the reset elastic element from moving, misaligning, or even falling off, which would affect the use of the switch holder for the safety belt of this utility model. Further, the reset elastic element is a reset spring, and the two ends of the reset spring are sleeved on the reset positioning post and the reset adjusting post. In this way, using a reset spring as the reset elastic element is convenient in material selection, simple in assembly, and low in cost.

[0009] Preferably, the mounting groove is provided with wire harness retaining protrusions, which are arranged in pairs facing each other, and the pairs of wire harness retaining protrusions are symmetrically arranged on both sides of the central axis of the mounting groove. In this way, the pair of facing wire harness retaining protrusions in the mounting groove are used to position the switch wire harness and prevent the switch wire harness from moving or becoming misaligned in the mounting groove.

[0010] Preferably, a positioning cover is provided in the mounting groove, and the positioning cover covers the Hall switch and the switch wiring harness. This positioning cover, covering the Hall switch and the switch wiring harness, secures the Hall switch and the switch wiring harness within the mounting groove, preventing them from shifting or even falling out of the mounting groove, thus affecting the use of the switch holder for the safety belt of this invention. Furthermore, the positioning cover is formed by injection molding with soft rubber. This method of forming the positioning cover with soft rubber not only facilitates its formation but also improves its installation stability in the mounting groove, thereby enhancing the safety stability of the Hall switch and the switch wiring harness. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the switch base for the safety belt of this utility model;

[0012] Figure 2 A schematic diagram of the structure of the switch base for the safety belt of this utility model when the buckle cover is removed;

[0013] Figure 3 This is a schematic diagram showing the structure of the Hall switch and switch wiring harness in the switch holder for the safety belt of this utility model, when they are installed in the mounting groove on the buckle housing. Detailed Implementation

[0014] Below, in conjunction with Figures 1 to 3 This invention provides a detailed description of the switch holder for the safety belt.

[0015] like Figures 1 to 3 As shown, the present invention relates to a switch holder for a safety belt, comprising a buckle base and a sensing mechanism. The buckle base has a mounting groove for mounting the sensing mechanism. Preferably, the buckle base includes a buckle shell 11 and a buckle cover 12, with the mounting groove 111 located on the buckle shell 11, and the buckle cover 12 covering the mounting groove 111 and connecting to the buckle shell 11. Preferably, the buckle shell 11 has a connecting protrusion 112, and the buckle cover 12 has a connecting groove 121 for engaging with the connecting protrusion 112. Thus, the buckle cover 12 and the buckle shell 11 are connected via the connecting groove 121 and the connecting protrusion 112, making the connection simple and convenient.

[0016] like Figure 2 and 3 As shown, the sensing mechanism includes a Hall switch 21, a slider 22, a magnet 23, and a reset elastic element 24. The Hall switch 21 is installed in the mounting groove 111 and connected to the switch wiring harness 25. The slider 22 includes a sliding plate 221 and a sliding foot 222. The sliding plate 221 is provided with a positioning groove 2211 for installing the magnet 23. The sliding foot 222 is locked on both sides of the buckle base and connected to the sliding plate 221. The magnet 23 is installed in the positioning groove 2211 and pressed on the Hall switch 21. The reset elastic element 24 is sandwiched between the sliding plate 221 and the wiring terminals of the buckle base. When the seat belt (not shown) is separated from the switch base, the magnet 23 generates an electromagnetic induction signal with the Hall switch 21 when the Hall switch 21 is energized. When the buckle of the seat belt is connected to the switch base, the buckle pushes the sliding foot 222 to move towards the wiring terminals of the switch base. The magnet 23 moves away from the Hall switch 21 with the slider 22, and the electromagnetic induction signal disappears.

[0017] like Figures 1 to 3As shown, a positioning plate 1111 is provided in the mounting groove 111 on the buckle housing 11. The positioning plate 1111 is located on the inner side wall of the mounting groove 111 near the insertion end of the buckle base. When the Hall switch 21 is installed in the mounting groove 111, the positioning plate 1111 locks the two sides of the Hall switch 21. In this way, when assembling the switch holder for the safety belt of this utility model, the positioning plate 1111 can be used to lock the Hall switch 21 installed in the mounting groove 111, preventing the Hall switch 21 from shifting in the mounting groove 111 or even falling out of the mounting groove 111, which would affect the assembly effect of the switch holder for the safety belt of this utility model. Preferably, the side wall of the mounting groove 111 is provided with a limiting protrusion 1112 and a positioning groove 1113, and the positioning groove 1113 is located between the limiting protrusion 1112 and the terminal of the snap-fit ​​base. When the sliding plate 221 in the sliding member 22 is installed in the mounting groove 111, the part of the sliding foot 222 near the sliding plate 221 is located in the positioning groove 1113 and can slide in the positioning groove 1113. In this way, during use, the sliding member 22 can slide back and forth in the positioning groove 1113, which facilitates the sliding member 22 to drive the magnet 23 to move away from the Hall switch 21 or reset to the Hall switch 21. Preferably, the mounting groove 111 is provided with a branch post 1114, and the branch post 1114 is close to the terminal of the snap-fit ​​base. In this way, the branch post 1114 is used to separate the switch wiring harness 25 connected to different terminals of the Hall switch 21, so as to avoid the input current and output current of the Hall switch 21 from interfering with each other and affecting the judgment accuracy of the vehicle central control system. Preferably, the top of the branch post 1114 is provided with a connecting hole 11141. In this way, the connecting hole 11141 on the top of the branch post 1114 is provided for insertion and connection with the positioning buckle (not shown in the figure) on the snap cover 12. This can not only improve the connection stability between the snap cover 12 and the snap shell 11, but also use the branch post 1114 and the positioning buckle to position the snap cover 12, thereby improving the assembly accuracy and assembly efficiency of the snap cover 12. Preferably, the mounting groove 111 is provided with a reset positioning post 1115 and a reset receiving groove 1116 for accommodating the reset elastic member 24. The reset positioning post 1115 is located between the reset receiving groove 1116 and the dividing post 1114. The central axis of the reset positioning post 1115 is perpendicular to the axis of the dividing post 1114, and the free end of the reset positioning post 1115 faces the reset receiving groove 1116. The sliding plate 221 is provided with a sliding reset groove 2212, which is located above the reset receiving groove 1116. The bottom of the sliding reset groove 2212 is provided with a reset adjusting post 2213 that is arranged opposite to the reset positioning post 1115.Thus, when assembling the switch holder for the safety belt of this utility model, the reset positioning post 1115 in the mounting groove 111 and the reset adjusting post 2213 on the sliding plate 221 can be used to install the reset elastic element 24. Simultaneously, the reset receiving groove 1115 in the mounting groove 111 and the sliding reset groove 2212 on the sliding plate 221 can be used to position the reset elastic element 24, preventing it from shifting, misaligning, or even falling off, which would affect the use of the switch holder for the safety belt of this utility model. Preferably, the reset elastic element 24 is a reset spring, and both ends of the reset spring are sleeved on the reset positioning post 1115 and the reset adjusting post 2213. Using a reset spring as the reset elastic element 24 is convenient in material selection, simple in assembly, and low in cost. Preferably, the mounting groove 111 is provided with wire harness retaining protrusions 1117, which are arranged in pairs opposite each other, and the pairs of wire harness retaining protrusions 1117 are symmetrically arranged on both sides of the central axis of the mounting groove 111. In this way, two opposing wire harness protrusions 1117 are set in the mounting groove 111 to position the switch wire harness 25 and prevent the switch wire harness 25 from moving or misaligning in the mounting groove 111.

[0018] like Figure 2 As shown, a positioning cover 1118 is provided in the mounting groove 111, and the positioning cover 1118 covers the Hall switch 21 and the switch wiring harness 25. Thus, by providing the positioning cover 1118 in the mounting groove 111 to cover the Hall switch 21 and the switch wiring harness 25, the positioning cover 1118 secures the Hall switch 21 and the switch wiring harness 25 in the mounting groove 111, preventing the Hall switch 21 and the switch wiring harness 25 from moving or misaligning, or even falling out of the mounting groove 111, which would affect the use of the switch holder for the safety belt of this utility model. Preferably, the positioning cover 1118 is formed by soft rubber injection molding. This method of forming the positioning cover 1118 by soft rubber injection molding not only facilitates the formation of the positioning cover 1118, but also improves the installation stability of the positioning cover 1118 in the mounting groove 111, thereby improving the safety stability of the Hall switch 21 and the switch wiring harness 25.

[0019] The switch holder for seat belts of this utility model is equipped with a sensing mechanism. When the seat belt is separated from the switch holder, the magnet 23 presses against the Hall switch 21, generating an electromagnetic signal that is transmitted to the vehicle's central control system. When the seat belt is connected to the switch holder, the magnet 23 moves away from the Hall switch 21 under the push of the seat belt buckle and the sliding member 22. The electromagnetic induction signal generated by the magnet 23 and the energized Hall switch 21 and transmitted to the vehicle's central control system disappears. Therefore, when a vehicle equipped with the switch holder for seat belts of this utility model is started, the sensing mechanism in the switch holder is energized, i.e., the Hall switch 21 is energized. When the driver or passenger is not wearing a seat belt (i.e., the seat belt is separated from the switch holder), the sensing mechanism generates an electromagnetic induction signal and transmits it to the vehicle's central control system. When the driver or passenger is wearing a seat belt (i.e., the seat belt is connected to the switch holder buckle), no electromagnetic induction signal is generated in the sensing mechanism, and therefore no electromagnetic induction signal is transmitted to the vehicle's central control system. Therefore, after the vehicle is started, the vehicle's central control system only needs to determine whether the driver and passengers are wearing seat belts by whether it receives the electromagnetic induction signal transmitted from the switch socket of the seat belt of this utility model, which effectively improves the judgment accuracy of the vehicle's central control system.

Claims

1. A switch housing for a seat belt, characterized by The switch base includes a snap-fit ​​base and a sensing mechanism, and the snap-fit ​​base is provided with a mounting groove for mounting the sensing mechanism. The sensing mechanism includes a Hall switch, a slider, a magnet, and a reset elastic element. The Hall switch is installed in the mounting slot and connected to the switch wiring harness. The slider includes a sliding plate and a sliding foot. The sliding plate has a positioning groove for mounting the magnet. The sliding foot is engaged with both sides of the buckle base and connected to the sliding plate. The magnet is installed in the positioning groove and pressed against the Hall switch. The reset elastic element is sandwiched between the sliding plate and the wiring terminals of the buckle base. When the seat belt is separated from the switch base, the magnet generates an electromagnetic induction signal with the Hall switch when the Hall switch is energized. When the seat belt buckle is connected to the switch base, the buckle pushes the sliding foot towards the wiring terminals of the switch base, and the magnet moves away from the Hall switch along with the slider, causing the electromagnetic induction signal to disappear.

2. The seat belt switch housing according to claim 1, characterized in that The snap-fit ​​base includes a snap-fit ​​shell and a snap-fit ​​cover. The mounting groove is located on the snap-fit ​​shell, and the snap-fit ​​cover covers the mounting groove and is connected to the snap-fit ​​shell. A positioning plate is provided on the inner side wall of the mounting groove near the insertion end of the snap-fit ​​base. When the Hall switch is installed in the mounting groove, the positioning plate locks the two sides of the Hall switch.

3. The seat belt switch housing of claim 2, wherein The mounting groove is provided with a limiting protrusion and a positioning groove on its side wall, and the positioning groove is located between the limiting protrusion and the wiring terminal of the buckle base; when the sliding plate in the sliding member is installed in the mounting groove, the part of the sliding foot near the sliding plate is located in the positioning groove and can slide in the positioning groove.

4. The switch housing for a safety belt according to any one of claims 1 to 3, characterized in that A branch post is provided in the mounting groove, and the branch post is close to the wiring terminal of the snap-fit ​​base.

5. The switch holder for a seat belt according to claim 4, characterized in that, The top of the branch post is provided with a connection hole.

6. The switch holder for a seat belt according to claim 4, characterized in that, The mounting groove is provided with a reset positioning post and a reset receiving groove for accommodating the reset elastic element. The reset positioning post is located between the reset receiving groove and the dividing post. The central axis of the reset positioning post is perpendicular to the axis of the dividing post, and the free end of the reset positioning post faces the reset receiving groove. The sliding plate is provided with a sliding reset groove, which is located above the reset receiving groove. The bottom of the sliding reset groove is provided with a reset adjustment post that is arranged opposite to the reset positioning post.

7. The switch holder for a seat belt according to claim 6, characterized in that, The reset elastic element is a reset spring, and the two ends of the reset spring are sleeved on the reset positioning post and the reset adjusting post.

8. The switch holder for a seat belt according to claim 4, characterized in that, The mounting groove is provided with wire harness clips, which are arranged in pairs facing each other, and the pairs of wire harness clips are symmetrically arranged on both sides of the central axis of the mounting groove.

9. The switch holder for a seat belt according to claim 4, characterized in that, A positioning cover is provided in the mounting slot, and the positioning cover covers the Hall switch and the switch wiring harness.

10. The switch holder for a seat belt according to claim 9, characterized in that, The positioning cover is formed by injection molding of soft rubber.

Images