Novel two-channel seat occupation sensor

Abstract

The utility model belongs to the technical field of seat occupying sensors, and particularly relates to a novel two-channel seat occupying sensor which comprises a sensor shell. The side wall of the sensor shell is fixedly connected with a trigger assembly; a movable groove is formed in the trigger assembly; a plastic elastic sheet is mounted on the trigger assembly; the plastic elastic sheet is arranged in an arc shape; one end of the plastic elastic sheet is arranged in the movable groove and is in sliding connection with the movable groove; a first microswitch and a second microswitch are fixedly connected to the bottom of the sensor shell, through cooperation of a plastic elastic piece and a trigger button, the first microswitch and the second microswitch can achieve the functions of two independent loops, the two loops can synchronously receive and send signals, the stability and accuracy of the sensor are improved, and the sensor is convenient to use. The first microswitch and the second microswitch are arranged in a centralized manner, so that space and parts are saved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of seat occupancy sensors, in particular to a novel dual-channel seat occupancy sensor. Background Art

[0002] The Seat Occupancy Sensor is a magnetically operated, push-button sensor with a simple press-fit clip mounting configuration that allows passenger safety systems to determine if an object or person is present in a seat.

[0003] The working principle of the seat occupancy sensor mainly involves a pressure sensor and a signal processor. When an object applies pressure on the seat, the pressure sensor will sense the change in pressure and change the resistance value through the contact between the conductive layer and the piezoresistor. This resistance change is then transmitted to the signal processor, which further processes the signal, including amplification, filtering and other steps to ensure the stability and accuracy of the signal. Finally, the signal processor will determine whether the seat is occupied based on the processed signal and transmit the judgment result to the relevant equipment for response.

[0004] In order to prevent missed fault detection, existing seat occupancy sensors usually use dual sensors for detection. However, the dual sensors require dual sensing loops, which results in large sensor space occupation and asynchronous transmission.

[0005] To this end, the utility model provides a novel dual-channel seat occupancy sensor. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: a novel dual-channel seat occupancy sensor described in the utility model comprises a sensor housing; a trigger assembly is fixedly connected to the side wall of the sensor housing; an active groove is provided on the trigger assembly; a plastic spring is installed on the trigger assembly; the plastic spring is arranged in an arc shape; one end of the plastic spring is inside the active groove and is slidably connected; a first micro switch and a second micro switch are fixedly connected to the bottom of the sensor housing; a trigger button is installed on the first micro switch and the second micro switch; the trigger button is arranged inside the active groove; the trigger button and the end of the plastic spring are arranged correspondingly; a plurality of groups of connecting wires are fixedly connected to the side wall of the sensor housing; the connecting wires and the first micro switch and the second micro switch are connected to each other; a connecting socket is installed at the end of the connecting wire away from the sensor housing, and the above structure can enable the first micro switch and the second micro switch to realize the function of two independent circuits, and can also enable the two circuits to receive and send signals synchronously, thereby increasing the stability and accuracy of the sensor.

[0008] Preferably, a protective shell is fixedly connected between the sensor housing and the connecting socket; the protective shell is arranged on the connecting line; and a plurality of groups of supporting rods are fixedly connected inside the protective shell. The above structure improves the service life of the connecting line and the safety during use.

[0009] Preferably, multiple groups of isolation components are fixedly connected to the inner wall of the protective shell; the multiple groups of isolation components are fixedly connected to each other; the isolation components include a fixing rod and a limiting ring; the fixing rod and the limiting ring are fixedly connected; the fixing rod close to the inner wall of the sensor housing and the inner wall of the sensor housing are fixedly connected; the limiting ring is sleeved on the connecting wire. The above structure reduces the problem of multiple groups of connecting wires being entangled with each other and affecting normal work, thereby improving the stability of the connecting wire in signal transmission.

[0010] Preferably, a storage box is fixedly connected to the inner side wall of the protective shell; a plurality of ventilation holes are provided on the top side wall of the storage box. The above structure improves the safety of the connecting wire during operation, increases the service life of the connecting wire, and increases the protection effect of the connecting wire.

[0011] Preferably, a pull-out box is slidably arranged inside the storage box; the pull-out box is detachably arranged on the protective shell; a sliding groove is provided on the bottom side wall of the sensor shell; a plurality of sets of fixing screws are threadedly connected to the bottom side wall of the sensor shell; the sliding groove and the fixing screws are both arranged below the pull-out box. The above structure improves the purification effect of the air inside the protective shell and improves the safety of the working environment of the connecting line.

[0012] Preferably, a plurality of groups of cleaning bristles are fixedly connected to the inner wall of the limiting ring; the cleaning bristles are arranged in a circular array on the limiting ring. The above structure reduces residual impurities on the connecting line and improves the protection effect of the connecting line.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The novel dual-channel seat occupancy sensor described in the utility model can enable the first microswitch and the second microswitch to realize the functions of two independent circuits through the cooperation of the plastic spring and the trigger button, and can also enable the two circuits to synchronously receive and send signals, thereby increasing the stability and accuracy of the sensor. By centrally arranging the first microswitch and the second microswitch, space and parts are saved, and production costs are reduced.

[0015] 2. The novel dual-channel seat occupancy sensor described in the utility model can protect the connecting line by arranging a protective shell on the connecting line. When the connecting line is used for a long time, the problem of external dust and impurities falling on the surface of the connecting line and causing corrosion to the connecting line is reduced, thereby improving the service life of the connecting line and the safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the matching structure of the first micro switch and the second micro switch of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the protective shell in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the limiting ring in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the pull-out box in the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the cleaning bristles in the utility model;

[0023] In the figure: 1. Sensor housing; 2. Trigger assembly; 3. Plastic spring; 4. First micro switch; 5. Second micro switch; 6. Trigger button; 7. Movable slot; 8. Connecting wire; 9. Connecting socket; 10. Protective shell; 11. Fixing rod; 12. Limiting ring; 13. Support rod; 14. Storage box; 15. Pull-out box; 16. Slide slot; 17. Fixing screw; 18. Cleaning brush. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figures 1 to 3As shown, a new type of dual-channel seat occupancy sensor described in an embodiment of the utility model comprises a sensor housing 1; a trigger component 2 is fixedly connected to the side wall of the sensor housing 1; a movable groove 7 is opened on the trigger component 2; a plastic spring 3 is installed on the trigger component 2; the plastic spring 3 is arranged in an arc shape; one end of the plastic spring 3 is inside the movable groove 7 and is slidably connected; a first micro switch 4 and a second micro switch 5 are fixedly connected to the bottom of the sensor housing 1; a trigger button 6 is installed on the first micro switch 4 and the second micro switch 5; the trigger button 6 is arranged inside the movable groove 7; the trigger button 6 and the end of the plastic spring 3 are arranged correspondingly; a plurality of groups of connecting wires 8 are fixedly connected to the side wall of the sensor housing 1; the connecting wires 8 and the first micro switch 4 and the second micro switch 5 are connected to each other; a connecting socket 9 is installed on the end of the connecting wire 8 away from the sensor housing 1, and when working, a plastic spring is provided The seat is provided with a plastic spring 3. When the seat is occupied, objects or people will squeeze the seat surface, thereby causing the plastic spring 3 to sink downward. Under the elastic action of the plastic spring 3, one end of the plastic spring 3 located inside the movable groove 7 will slide forward, thereby causing the end of the plastic spring 3 to touch and press a pair of trigger buttons 6; the first microswitch 4 and the second microswitch 5 on the trigger button 6 are triggered at the same time, and then the signal is transmitted to the connecting socket 9 through the connection of the connecting line 8. By setting the first microswitch 4 and the second microswitch 5, the sensors can be centrally set to reduce space occupancy. At the same time, by cooperating with the plastic spring 3 and the trigger button 6, the first microswitch 4 and the second microswitch 5 can realize the functions of two independent circuits, and the two circuits can also receive and send signals synchronously, thereby increasing the stability and accuracy of the sensor. By centrally setting the first microswitch 4 and the second microswitch 5, space and parts are saved, and production costs are reduced.

[0026] like Figures 1 to 3 As shown, a protective shell 10 is fixedly connected between the sensor housing 1 and the connecting socket 9; the protective shell 10 is sleeved on the connecting wire 8; a plurality of support rods 13 are fixedly connected inside the protective shell 10. When working, by sleeved on the connecting wire 8, the protective shell 10 can protect the connecting wire 8. When the connecting wire 8 is used for a long time, the problem of external dust and impurities falling on the surface of the connecting wire 8 and causing corrosion to the connecting wire 8 is reduced, thereby improving the service life of the connecting wire 8 and the safety during use, wherein the support rods 13 play a supporting effect on the protective shell 10.

[0027] like Figure 3 and Figure 4As shown, the inner wall of the protective shell 10 is fixedly connected to multiple groups of isolation components; the multiple groups of isolation components are fixedly connected to each other; the isolation components include a fixing rod 11 and a limiting ring 12; the fixing rod 11 and the limiting ring 12 are fixedly connected; the fixing rod 11 close to the inner wall of the sensor housing 1 and the inner wall of the sensor housing 1 are fixedly connected; the limiting ring 12 is sleeved on the connecting line 8. When working, by providing a limiting ring 12 on the connecting line 8, the connecting line 8 passes through the middle of the corresponding limiting ring 12 in sequence during installation, so that the limiting ring 12 fixes and limits each connecting line 8 for isolation, thereby reducing the problem of multiple groups of connecting lines 8 being entangled with each other and affecting normal operation, and improving the stability of the connecting line 8 in signal transmission.

[0028] like Figure 4 As shown, a storage box 14 is fixedly connected to the inner wall of the protective shell 10; a plurality of ventilation holes are provided on the top side wall of the storage box 14. When working, activated carbon is placed inside the storage box 14 to adsorb moisture inside the protective shell 10, thereby reducing the humidity inside the protective shell 10, thereby reducing the corrosion of the connecting wire 8 caused by the humid environment, improving the safety of the connecting wire 8 during operation, increasing the service life of the connecting wire 8, and increasing the protection effect of the connecting wire 8.

[0029] like Figure 4 and Figure 5 As shown, a pull-out box 15 is slidably arranged inside the storage box 14; the pull-out box 15 is detachably arranged on the protective shell 10; a slide groove 16 is provided on the bottom side wall of the sensor housing 1; the bottom side wall of the sensor housing 1 is threadedly connected with multiple sets of fixing screws 17; the slide groove 16 and the fixing screws 17 are both arranged below the pull-out box 15. During operation, by placing activated carbon inside the pull-out box 15, after long-term use, the activated carbon itself loses its effect. By loosening the fixing screws 17, the pull-out box 15 is pulled out from the storage box 14 to replace the activated carbon, and then the pull-out box 15 is inserted into the storage box 14, and the fixing screws 17 are tightened and fixed, which improves the purification effect of the air inside the protective shell 10 and improves the safety of the working environment of the connecting line 8. At the same time, the slide groove 16 can make the installation and disassembly of the pull-out box 15 more convenient and quick.

[0030] like Figure 6 As shown, a plurality of groups of cleaning bristles 18 are fixedly connected to the inner wall of the limiting ring 12; the cleaning bristles 18 are arranged in a circular array on the limiting ring 12. When working, by arranging a plurality of groups of cleaning bristles 18 inside the limiting ring 12, the surface of the connecting wire 8 can be cleaned during the installation process, thereby reducing the residual impurities on the connecting wire 8 and improving the protection effect of the connecting wire 8.

[0031] Working principle: by providing a plastic spring 3, when the seat is occupied, objects or people will squeeze the seat surface, thereby causing the plastic spring 3 to sink downward, and under the elastic action of the plastic spring 3, one end of the plastic spring 3 located inside the movable groove 7 will slide forward, thereby causing the end of the plastic spring 3 to touch and press a pair of trigger buttons 6; the first microswitch 4 and the second microswitch 5 on the trigger button 6 are triggered at the same time, and then the signal is transmitted to the connecting socket 9 through the connection of the connecting line 8. By setting the first microswitch 4 and the second microswitch 5, the sensors can be centrally set to reduce space occupancy. At the same time, through the cooperation of the plastic spring 3 and the trigger button 6, the first microswitch 4 and the second microswitch 5 can realize the functions of two independent circuits, and the two circuits can also receive and send signals synchronously, thereby increasing the stability and accuracy of the sensor. By centrally setting the first microswitch 4 and the second microswitch 5, space and parts are saved, and production costs are reduced.

[0032] By arranging a protective shell 10 on the connecting wire 8, the protective shell 10 can protect the connecting wire 8. When the connecting wire 8 is used for a long time, the problem of external dust and impurities falling on the surface of the connecting wire 8 and causing corrosion to the connecting wire 8 is reduced, thereby improving the service life of the connecting wire 8 and the safety during use. The support rod 13 plays a supporting effect on the protective shell 10.

[0033] By providing a limiting ring 12 on the connecting wire 8, the connecting wire 8 passes through the middle part of the corresponding limiting ring 12 in sequence during installation, so that the limiting ring 12 fixes and limits each connecting wire 8 and isolates it, thereby reducing the problem of multiple groups of connecting wires 8 being entangled with each other and affecting normal work, and improving the stability of signal transmission by the connecting wire 8.

[0034] By placing activated carbon inside the storage box 14, the moisture inside the protective shell 10 can be adsorbed, reducing the humidity inside the protective shell 10, thereby reducing the corrosion of the connecting wire 8 caused by the humid environment, improving the safety of the connecting wire 8 during operation, increasing the service life of the connecting wire 8, and increasing the protection effect of the connecting wire 8.

[0035] By placing the activated carbon inside the pull-out box 15, the activated carbon itself loses its effect after long-term use. By loosening the fixing screws 17, and then pulling the pull-out box 15 out of the storage box 14 to replace the activated carbon, and then inserting the pull-out box 15 into the storage box 14, and tightening the fixing screws 17 to fix it, the purification effect of the air inside the protective shell 10 is improved, and the safety of the working environment of the connecting line 8 is improved. At the same time, the slide groove 16 can make the installation and disassembly of the pull-out box 15 more convenient and quick.

[0036] By providing a plurality of groups of cleaning bristles 18 inside the limiting ring 12 , the surface of the connecting wire 8 can be cleaned during the installation process, thereby reducing residual impurities on the connecting wire 8 and improving the protection effect of the connecting wire 8 .

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel dual-channel seat occupancy sensor, comprising a sensor housing (1); characterized in that: The side wall of the sensor housing (1) is fixedly connected with a trigger component (2); a movable groove (7) is provided on the trigger component (2); a plastic spring (3) is installed on the trigger component (2); the plastic spring (3) is arranged in an arc shape; one end of the plastic spring (3) is inside the movable groove (7) and is slidably connected; a first micro switch (4) and a second micro switch (5) are fixedly connected to the bottom of the sensor housing (1); a trigger button (6) is installed on the first micro switch (4) and the second micro switch (5); the trigger button (6) is arranged inside the movable groove (7); the trigger button (6) and the ends of the plastic spring (3) are arranged correspondingly; a plurality of groups of connecting wires (8) are fixedly connected to the side wall of the sensor housing (1); the connecting wires (8) and the first micro switch (4) and the second micro switch (5) are arranged to be connected to each other; and a connecting socket (9) is installed at the end of the connecting wire (8) away from the sensor housing (1).

2. A novel dual-channel seat occupancy sensor according to claim 1, characterized in that: A protective shell (10) is fixedly connected between the sensor housing (1) and the connection socket (9); the protective shell (10) is sleeved on the connection line (8); and a plurality of groups of support rods (13) are fixedly connected inside the protective shell (10).

3. A novel dual-channel seat occupancy sensor according to claim 2, characterized in that: The inner wall of the protective shell (10) is fixedly connected to multiple groups of isolation components; the multiple groups of isolation components are fixedly connected to each other; the isolation components include a fixing rod (11) and a limiting ring (12); the fixing rod (11) and the limiting ring (12) are fixedly connected; the fixing rod (11) close to the inner wall of the sensor housing (1) and the inner wall of the sensor housing (1) are fixedly connected; the limiting ring (12) is sleeved on the connecting line (8).

4. A novel dual-channel seat occupancy sensor according to claim 3, characterized in that: A storage box (14) is fixedly connected to the inner side wall of the protective shell (10); and a plurality of ventilation holes are provided on the top side wall of the storage box (14).

5. A novel dual-channel seat occupancy sensor according to claim 4, characterized in that: A pull-out box (15) is slidably arranged inside the storage box (14); the pull-out box (15) is detachably arranged on the protective shell (10); a sliding groove (16) is provided on the bottom side wall of the sensor housing (1); a plurality of sets of fixing screws (17) are threadedly connected to the bottom side wall of the sensor housing (1); the sliding groove (16) and the fixing screws (17) are both arranged below the pull-out box (15).

6. A novel dual-channel seat occupancy sensor according to claim 5, characterized in that: The inner wall of the limiting ring (12) is fixedly connected with a plurality of groups of cleaning bristles (18); the cleaning bristles (18) are arranged in a circular array on the limiting ring (12).

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