Hall safety belt alarm wire harness switch

Abstract

The utility model relates to the technical field of vehicle safety accessories, in particular to a Hall safety belt alarm wire harness switch which comprises a buckle shell, a reset spring used for being connected to a safety belt buckle seat and limited in a switch groove, and a magnetic induction sliding block arranged at the movable end of the reset spring and connected in the switch groove in a sliding mode. The interface shape of the magnetic induction sliding block is matched with the cross section shape of the switch groove, the Hall IC is limited in the plate groove, installation spaces are provided for the Hall IC and the reset assembly through the arrangement of the plate groove and the switch groove, the magnetic induction sliding block connected in the switch groove in a sliding mode is matched with the reset spring, and after the safety belt tongue lock is inserted into the safety belt lock catch, the magnetic induction sliding block is extruded, so that the Hall IC is reset. The magnetic induction sliding block can slide to the minimum compression position of the reset spring, the magnetic induction end of the Hall IC located in the plate groove induces the position of the magnetic induction sliding block, then a signal is transmitted to the safety belt alarm circuit through a circuit, the safety belt alarm circuit is cut off, the alarm sound is turned off, and the flashing lamp is turned off.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle safety accessories, in particular to a Hall seat belt alarm harness switch. Background Art

[0002] The main body of the seat belt alarm device currently on the market includes a pressure sensor, a seat belt buckle and an alarm, which are connected by a wiring harness. The pressure sensor is installed on the seat to receive the pressure signal when the human body sits on the seat, and the alarm is generally connected to the ECU of the car. Under normal circumstances, the connection switch between the wiring harness and the pressure sensor is a normally open switch, and the connection switch between the seat belt buckle and the wiring harness is a normally closed switch (i.e., the seat belt alarm harness switch). When a person sits on the seat, the normally open switch is closed, the seat belt alarm circuit is in the conducting state, and the car system will display an indication that the seat belt is not fastened, such as an alarm sound and a flashing light; and when the seat belt tongue lock is inserted into the seat belt buckle, the seat belt alarm harness switch is disconnected, the seat belt alarm circuit is cut off, and the alarm sound and flashing light are turned off.

[0003] Some seat belt alarm harness switches include a housing and two metal shrapnel installed in the housing, and the two metal shrapnel are connected by contacts. When the seat belt lock tongue is inserted into the seat belt buckle, the ejection block in the buckle enters the housing, squeezes the raised part of one of the metal shrapnel, forces the two metal shrapnel to separate from each other, and disconnects the entire switch. However, it is not easy to find the problem point when a problem occurs with this harness switch, and the entire harness switch needs to be disassembled and tested, or replaced as a whole. In either case, the maintenance cost of this harness switch after a problem occurs will be high, and the process requirements during assembly are high, and the installation is complex. With the advancement of technology, electronic products are used more and more widely in life. Can a non-contact switch, such as a Hall sensor assembly including a Hall sensor and a permanent magnet, be used to replace the original metal shrapnel type harness switch? In this way, when a problem occurs, the solution will be simpler, the efficiency will be greatly improved, and the assembly method of the electronic product into the housing will also be simpler. Therefore, a Hall seat belt alarm harness switch is needed. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a Hall seat belt alarm wiring harness switch, which is used to solve the problem of high maintenance cost when a problem occurs in a traditional wiring harness switch in the prior art.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides the following technical solutions: a Hall seat belt alarm harness switch, comprising:

[0006] A buckle housing is used to be connected to the safety belt buckle seat, and a plate slot and a switch slot are provided in the buckle housing;

[0007] A reset assembly, comprising a reset spring limited in the switch slot, wherein a movable end of the reset spring is provided with a magnetic slider slidably connected in the switch slot, and an interface shape of the magnetic slider matches a cross-sectional shape of the switch slot;

[0008] The Hall IC is confined in the plate slot, and the magnetic sensing end of the Hall IC is arranged on one side of the limit compression position of the return spring.

[0009] To implement the above technical solution, a plate slot and a switch slot are set to provide installation space for the Hall IC and the reset component respectively. A magnetic slider slidably connected to the switch slot is used in conjunction with a reset spring. In the initial position, the magnetic slider is close to the Hall IC end. Once someone sits on the seat and the seat is squeezed, the circuit is opened to alarm. However, when the safety buckle is inserted, the magnetic slider can slide to the minimum compression position of the reset spring. At that time, the magnetic slider is pushed to the bottom of the switch slot away from the Hall IC end, turning off the alarm sound and the flashing light.

[0010] In an embodiment of the present invention, the plate slot is disposed on one side of the switch slot, and an end surface of the plate slot close to one side of the switch slot is hollowed out.

[0011] To implement the above technical solution, by hollowing out the end face of the plate slot close to the switch slot, the spacing distance between the plate slot and the switch slot can be reduced, thereby improving the sensing sensitivity and stability of the magnetic slider and the Hall IC.

[0012] In an embodiment of the present invention, an end surface of the switch slot that is away from the open housing is an open end surface.

[0013] By implementing the above technical solution and making the end face of the switch slot away from the open shell into an open end face, the weight of the device itself can be reduced and the monitoring of the environment in the switch slot can be facilitated.

[0014] In one embodiment of the utility model, a monitoring through slot is provided on the side end surface of the switch slot opposite to the plate slot, and the monitoring through slot can display the sliding state of the reset spring and the magnetic slide block in the plate slot.

[0015] To implement the above technical solution, by setting a monitoring slot, it is convenient to observe from the outside whether there is a problem with the sliding state of the reset spring and the magnetic slider in the plate slot when a fault occurs. If not, the problem of the reset spring and the magnetic slider can be ruled out, and the remaining part is to replace the Hall IC part.

[0016] In an embodiment of the present invention, the uppermost portion of the monitoring slot is connected to the buckle housing.

[0017] To implement the above technical solution, a monitoring slot is opened on the side end face of the switch slot on the opposite side of the plate slot, and the monitoring slot can be opened at a certain angle at the connection between the uppermost part of the monitoring slot and the snap shell, thereby facilitating the assembly of the reset spring and the magnetic slider into the switch slot.

[0018] In one embodiment of the utility model, a limiting protrusion for limiting the position of the Hall IC is provided in the board groove, and the limiting protrusion is provided on two opposite inner surfaces of the board groove, and a limiting space for installing the Hall IC flows out between the limiting protrusions on both sides.

[0019] To implement the above technical solution, the setting of the limiting protrusion can limit the position of the Hall IC in the board slot, thereby ensuring the installation stability of the Hall IC in the board slot.

[0020] In one embodiment of the utility model, the limiting protrusion located on the bottom side includes a plate protrusion arranged in the middle position, and a plate edge protrusion arranged on both sides of the plate protrusion, and the plate edge protrusion and the plate protrusion respectively support the two sides and the middle position of the Hall IC.

[0021] To implement the above technical solution, by setting the protrusions in the board to cooperate with the protrusions on the edge of the board, a stable support effect can be provided for the Hall IC in the board slot, and installation space can be provided for the components on the Hall IC in the board slot, thereby extending the service life of the Hall IC.

[0022] In one embodiment of the present invention, one end of the board slot is open for the Hall IC to enter and exit the board slot.

[0023] To implement the above technical solution, one end of the board slot is set to be open, so that the Hall IC can easily enter and exit the board slot.

[0024] As described above, a Hall seat belt alarm wiring harness switch of the utility model has the following beneficial effects: by setting a plate slot and a switch slot, installation space is provided for the Hall IC and the reset component respectively, and a magnetic slider slidably connected in the switch slot is used in conjunction with a reset spring, so that after the seat belt tongue lock is inserted into the seat belt buckle, the magnetic slider can be squeezed. In the initial position, the magnetic slider is close to the Hall IC end. Once someone sits on the seat, the seat is squeezed and the circuit is opened to alarm. However, after the safety buckle is inserted, the magnetic slider can slide to the minimum compression position of the reset spring. At that time, the magnetic slider is pushed to the bottom of the switch slot away from the Hall IC end, turning off the alarm sound and the flashing light. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shown is a schematic diagram of the structure of the Hall seat belt alarm wiring harness switch disclosed in an embodiment of the utility model.

[0026] Figure 2Shown is a schematic diagram of the plate slot structure of the Hall seat belt alarm wiring harness switch disclosed in an embodiment of the utility model.

[0027] Figure 3 Shown is a schematic diagram of the limiting protrusion structure of the Hall seat belt alarm wiring harness switch disclosed in an embodiment of the utility model.

[0028] Component number description

[0029] 1. Snap-on housing; 2. Plate slot; 3. Switch slot; 4. Reset spring; 5. Magnetic slider; 6. Hall IC; 7. Monitoring slot; 8. Limiting protrusion. DETAILED DESCRIPTION

[0030] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0031] See also Figures 1 to 3 The utility model provides a Hall seat belt alarm harness switch, comprising: a buckle shell 1, which is used to be connected to a seat belt buckle seat, and a plate slot 2 and a switch slot 3 are arranged in the buckle shell 1; a reset component, comprising a reset spring 4 limited in the switch slot 3, a movable end of the reset spring 4 is provided with a magnetic slider 5 slidably connected in the switch slot 3, and the interface shape of the magnetic slider 5 matches the cross-sectional shape of the switch slot 3; a Hall IC6, the Hall IC6 is limited in the plate slot 2, and the magnetic sensing end of the Hall IC6 is arranged on the side of the extreme compression position of the reset spring 4.

[0032] By setting the board slot 2 and the switch slot 3, installation spaces are provided for the Hall IC6 and the reset component respectively. By using the magnetic slider 5 slidably connected in the switch slot 3 and cooperating with the reset spring 4, after the seat belt tongue lock is inserted into the seat belt buckle, the magnetic slider 5 can be squeezed so that the magnetic slider 5 can slide to the minimum compression position of the reset spring 4. At that time, the magnetic sensing end of the Hall IC6 located in the board slot 2 will sense the position of the magnetic slider 5, and then transmit the signal to the seat belt alarm circuit through the line, so that the seat belt alarm circuit is cut off, and the alarm sound and flashing light are turned off.

[0033] The plate slot 2 is arranged on one side of the switch slot 3, and the end surface of the plate slot 2 close to the switch slot 3 is hollowed out. By hollowing out the end surface of the plate slot 2 close to the switch slot 3, the spacing distance between the plate slot 2 and the switch slot 3 can be reduced, and the sensing sensitivity and stability of the magnetic slider 5 and the Hall IC 6 can be improved.

[0034] The end face of the switch slot 3 away from the opening shell is an open end face. By making the end face of the switch slot 3 away from the opening shell an open end face, the weight of the device itself can be reduced and the monitoring of the environment inside the switch slot 3 can be facilitated. A monitoring through slot 7 is provided on the side end face of the switch slot 3 opposite to the plate slot 2. The monitoring through slot 7 can display the sliding state of the reset spring 4 and the magnetic slider 5 in the plate slot 2. By providing the monitoring through slot 7, it is convenient to observe from the outside whether there is a problem with the sliding state of the reset spring 4 and the magnetic slider 5 in the plate slot 2 when a fault occurs. If not, the problem of the reset spring 4 and the magnetic slider 5 can be ruled out, and the remaining part is to replace the Hall IC 6 part.

[0035] The uppermost part of the monitoring slot 7 is connected to the snap shell 1, and a monitoring slot 7 is opened on the side end face of the switch slot 3 on the opposite side of the matching plate slot 2. The monitoring slot 7 can be opened at a certain angle at the connection between the uppermost part of the monitoring slot 7 and the snap shell 1, so as to facilitate the assembly of the reset spring 4 and the magnetic slider 5 into the switch slot 3.

[0036] A limiting protrusion 8 for limiting the position of the Hall IC6 is provided in the board slot 2. The limiting protrusion 8 is provided on the inner surfaces of the two opposite sides of the board slot 2, and a limiting space for installing the Hall IC6 flows out between the limiting protrusions 8 on both sides. The setting of the limiting protrusion 8 can limit the position of the Hall IC6 in the board slot 2, thereby ensuring the installation stability of the Hall IC6 in the board slot 2.

[0037] The limiting protrusion 8 located on the bottom side includes a plate protrusion arranged in the middle position and a plate edge protrusion arranged on both sides of the plate protrusion. The plate edge protrusion and the plate protrusion respectively support the two sides and the middle position of the Hall IC6. By arranging the plate protrusion in the middle to cooperate with the plate edge protrusion, a stable supporting effect can be provided for the Hall IC6 in the plate slot 2, and installation space can be provided for the components on the Hall IC6 in the plate slot 2, thereby extending the service life of the Hall IC6.

[0038] One end of the board slot 2 is open-type, which is used for the Hall IC 6 to enter and exit the board slot 2. One end of the board slot 2 is open-type, which is convenient for the Hall IC 6 to enter and exit the board slot 2.

[0039] The utility model provides installation spaces for the Hall IC and the reset component respectively by arranging a plate slot and a switch slot, and utilizes a magnetic sensing slider slidably connected in the switch slot in cooperation with a reset spring, so that after the safety belt tongue lock is inserted into the safety belt buckle, the magnetic sensing slider is squeezed so that the magnetic sensing slider can slide to the minimum compression position of the reset spring, and then the magnetic sensing end of the Hall IC located in the plate slot will sense the position of the magnetic sensing slider, and then transmit the signal to the safety belt alarm circuit through the line, so that the safety belt alarm circuit is cut off, and the alarm sound and the flashing light are turned off.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A Hall seat belt alarm harness switch, characterized in that: include: A buckle housing is used to be connected to the safety belt buckle seat, and a plate slot and a switch slot are provided in the buckle housing; A reset assembly, comprising a reset spring limited in the switch slot, wherein a movable end of the reset spring is provided with a magnetic slider slidably connected in the switch slot, and an interface shape of the magnetic slider matches a cross-sectional shape of the switch slot; The Hall IC is confined in the plate slot, and the magnetic sensing end of the Hall IC is arranged on one side of the limit compression position of the return spring.

2. The Hall seat belt alarm harness switch according to claim 1, characterized in that: The plate slot is arranged at one side of the switch slot, and the end surface of the plate slot close to one side of the switch slot is hollowed out.

3. The Hall seat belt alarm harness switch according to claim 1, characterized in that: The end surface of the switch slot away from the open housing is an open end surface.

4. The Hall seat belt alarm harness switch according to claim 1, characterized in that: A monitoring through slot is provided on the side end surface of the switch slot opposite to the plate slot, and the monitoring through slot can display the sliding state of the reset spring and the magnetic induction slider in the plate slot.

5. The Hall seat belt alarm harness switch according to claim 4, characterized in that: The uppermost portion of the monitoring slot is connected to the buckle housing.

6. The Hall seat belt alarm harness switch according to claim 1, characterized in that: The plate groove is provided with a limiting protrusion for limiting the position of the Hall IC. The limiting protrusion is arranged on two opposite inner surfaces of the plate groove, and a limiting space for installing the Hall IC flows out between the limiting protrusions on both sides.

7. The Hall seat belt alarm harness switch according to claim 6, characterized in that: The limiting protrusions located on the bottom side include a plate center protrusion located in the middle position and plate edge protrusions located on both sides of the plate center protrusion. The plate edge protrusions and the plate center protrusions support both sides and the middle position of the Hall IC respectively.

8. The Hall seat belt alarm harness switch according to claim 1, characterized in that: One end of the board slot is open for the Hall IC to enter and exit the board slot.

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