CN202703482U - Collision sensor triggering device - Google Patents
Collision sensor triggering device Download PDFInfo
- Publication number
- CN202703482U CN202703482U CN 201220364134 CN201220364134U CN202703482U CN 202703482 U CN202703482 U CN 202703482U CN 201220364134 CN201220364134 CN 201220364134 CN 201220364134 U CN201220364134 U CN 201220364134U CN 202703482 U CN202703482 U CN 202703482U
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- China
- Prior art keywords
- magnetic ring
- crash sensor
- outer magnetic
- internal magnetic
- trigger device
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Abstract
The utility model relates to a collision sensor triggering device, which comprises an inner magnetic ring and an outer magnetic ring with circular cross sections, wherein the inner magnetic ring is movably arranged in the outer magnetic ring; a spacing is formed between the inner magnetic ring and the outer magnetic ring; the outer side of the inner magnetic ring and the inner side of the outer magnetic ring have the same magnetic polarity; both the inner magnetic ring and the outer magnetic ring are conductors and are respectively connected with a collision sensor through wires; and under the action of a certain acceleration, the inner magnetic ring overcomes the repulsive force to move and is in contact with the outer magnetic ring. With adoption of the collision sensor triggering device disclosed by the utility model, the inner magnetic ring is out of touch with the outer magnetic ring under normal circumstances, but when a high enough accelerated speed in any direction is obtained, the inner magnetic ring overcomes the repulsive force to move and is in contact with the outer magnetic ring, so that both poles of the collision sensor are turned on and the collision sensor is triggered to send out a collision signal, therefore, due to the above structure, the collision sensor triggering device can sense the collision in any direction, and is recyclable, simple in structure, high in reliability, and wide in application range.
Description
Technical field
The utility model relates to sensor field, and particularly the crash sensor field specifically refers to a kind of trigger device for crash sensor.
Background technology
Often use crash sensor in automobile and other relevant industries, when colliding, be used for triggering the startup of the safety guards such as safety air bag, or be used for cutting off the power supply etc. of high-power components.The structure of now widely used trigger device for crash sensor is directive, be generally 1 the dimension 2 to.Use respectively so unidirectional crash sensor in directions such as the forward of running car, side direction, an automobile needs at least 4 flip flop equipments, and usually can not repeated usage.Cause thus the manufacturing cost of crash sensor higher.
The utility model content
The purpose of this utility model is to have overcome above-mentioned shortcoming of the prior art, provides a kind of universal, can be recycled, and is simple in structure, with low cost, and the wider trigger device for crash sensor of field of application.
In order to realize above-mentioned purpose, trigger device for crash sensor of the present utility model has following formation:
This trigger device for crash sensor comprises internal magnetic ring and outer magnetic ring, the cross-sectional plane of described internal magnetic ring and outer magnetic ring is annulus, described internal magnetic ring is movably set in the described outer magnetic ring, and and outer magnetic ring between have spacing, the described internal magnetic ring outside has identical pole polarity with the outer magnetic ring inboard, described internal magnetic ring is connected conductor and connects crash sensor by wire respectively with outer magnetic ring, internal magnetic ring is connected in the positive pole of crash sensor, outer magnetic ring is connected in negative pole, under the effect of certain acceleration/accel, internal magnetic ring overcomes repulsion motion, thereby and contacts the both positive and negative polarity of the described crash sensor of conducting with outer magnetic ring.
In this trigger device for crash sensor, described flip flop equipment also comprises upper cover plate, lower cover and insulated shell, be embedded with described outer magnetic ring in the described insulated shell, described upper cover plate and lower cover are fastened on respectively the top and bottom of described insulated shell, and described internal magnetic ring is located between described upper cover plate and the lower cover by head bearing and movable the supporting of lower bearing respectively.
In this trigger device for crash sensor, described head bearing and lower bearing are ball bearing of main shaft.
In this trigger device for crash sensor, the described wire that is connected between outer magnetic ring and the crash sensor is arranged in the described insulated shell.
In this trigger device for crash sensor, described head bearing, lower bearing, upper cover plate and lower cover are conductor, the described wire that is connected between internal magnetic ring and the crash sensor is connected between described head bearing or lower bearing or upper cover plate or lower cover and the crash sensor, and the head bearing that passes through to connect, lower bearing, upper cover plate or the described internal magnetic ring of lower cover conducting and crash sensor.
In this trigger device for crash sensor, the material of described internal magnetic ring and/or outer magnetic ring is magnet steel.
In this trigger device for crash sensor, the magnetic-field intensity between described internal magnetic ring and outer magnetic ring is preset by magnetizing to internal magnetic ring and outer magnetic ring.
In this trigger device for crash sensor, described internal magnetic ring is all identical with magnetic-field intensity on the outer magnetic ring among direction, and described internal magnetic ring and outer magnetic ring are donut and are in stable state.
Adopted the trigger device for crash sensor of this utility model, because it comprises internal magnetic ring and outer magnetic ring, and the internal magnetic ring outside has identical pole polarity with the outer magnetic ring inboard, therefore interior outer magnetic ring does not contact under normal conditions, when obtaining any direction enough during large acceleration/accel, internal magnetic ring overcomes repulsion motion, thereby and contact the both positive and negative polarity of the described crash sensor of conducting with outer magnetic ring, the triggering crash sensor sends collision alarm.The trigger device for crash sensor of this structure has the collision that can respond to any direction, can be recycled, and simple in structure, reliability is high, the advantage that field of application is wider.
Description of drawings
Fig. 1 is the perspective view of trigger device for crash sensor of the present utility model.
Fig. 2 is the vertical section structural representation of trigger device for crash sensor of the present utility model.
Fig. 3 is the section drawing in trigger device for crash sensor of the present utility model B-B cross section in Fig. 2.
The specific embodiment
In order more clearly to understand technology contents of the present utility model, describe in detail especially exemplified by following examples.
See also Fig. 1 to shown in Figure 3, be respectively the structural representation of the utility model trigger device for crash sensor.
In this embodiment, trigger device for crash sensor of the present utility model comprises internal magnetic ring 1, outer magnetic ring 2, upper cover plate 3, lower cover 4 and insulated shell 5.Wherein, the cross-sectional plane of described internal magnetic ring 1 and outer magnetic ring 2 is annulus, and described internal magnetic ring 1 is movably set in the described outer magnetic ring 2, and and 2 of outer magnetic rings have spacing.As shown in Figure 3, the inboard of the outside of described internal magnetic ring 1 and outer magnetic ring 2 has identical pole polarity.Described internal magnetic ring 1 is connected with outer magnetic ring and is conductor and connects crash sensor by wire respectively, and internal magnetic ring 1 is connected in the positive pole of crash sensor, and outer magnetic ring 2 is connected in negative pole.Under the effect of certain acceleration/accel, internal magnetic ring 1 overcomes repulsion motion, thereby and contacts the both positive and negative polarity of the described crash sensor of conducting with outer magnetic ring 2.Described outer magnetic ring 2 is embedded in the described insulated shell 5, and described upper cover plate 3 and lower cover 4 are fastened on respectively the top and bottom of described insulated shell 5.Described internal magnetic ring 1 is located between described upper cover plate 3 and the lower cover 4 by head bearing 6 and lower bearing 7 movable supporting respectively.The described wire 8 that is connected between outer magnetic ring 2 and the crash sensor is arranged in the described insulated shell 5.Described head bearing 6, lower bearing 7, upper cover plate 3 and lower cover 4 are conductor, the described wire (not shown) that is connected between internal magnetic ring 1 and the crash sensor is connected between described head bearing 6 or lower bearing 7 or upper cover plate 3 or lower cover 4 and the crash sensor, and the described internal magnetic ring 1 of the head bearing 6 that passes through to connect, lower bearing 7, upper cover plate 3 or lower cover 4 conductings and crash sensor.
In a kind of more preferably embodiment, described head bearing 6 and lower bearing 7 are ball bearing of main shaft.
More preferably in the embodiment, the material of described internal magnetic ring 1 and/or outer magnetic ring 2 is magnet steel at another kind.The magnetic-field intensity that described internal magnetic ring 1 and outer magnetic ring are 2 is preset by magnetizing to internal magnetic ring 1 and outer magnetic ring 2.
In a kind of preferred embodiment, described internal magnetic ring 1 is all identical with magnetic-field intensity on the outer magnetic ring 2 among directions, and described internal magnetic ring 1 and outer magnetic ring 2 are for donut and be in stable state.
In application of the present utility model, the upper cover plate 3 of trigger device for crash sensor of the present utility model and lower cover 4 tightly are clipped in the middle internal magnetic ring 1 and metal (upper 6 and 7, internal magnetic ring 1 all is the magnet steel that can magnetize with outer magnetic ring 2, as shown in Figure 3, internal magnetic ring 1 and outer magnetic ring 2 relative one sides have identical pole polarity, bear each other repulsion, assurance internal magnetic ring 1 can not run into outer magnetic ring 2 in the situation that is not subject to the larger power that comes from acceleration/ accel.Bearing 6,7 and cover plate 3,4 between be friction of rolling, utilize grease lubrication, can greatly reduce mechanical wear.Upper and lower cover plates 3 and 4 is utilized the two ends that are bolted to insulated shell 5.The material of insulated shell 5 can be the insulating materials such as nylon or epoxy resin.Pass insulated shell 5 for the wire 8 of outer magnetic ring 2 energisings, and wire outlet is carried out encapsulation process.Internal magnetic ring 1 conduction can lean on bearing 6,7 and upper and lower cover plates 3,4 directly conduct, as long as with outer magnetic ring 2 between maintenance insulate.Perhaps also can pass through wire, pass from insulated shell 5, so just can guarantee the interference that is not subjected to extraneous electric current of whole system.Collision occurs in; obtain very large acceleration/accel owing to slowing down suddenly; so that overcoming repulsion with outer magnetic ring 2, internal magnetic ring 1 contacts with each other; (size of repulsion is according to the acceleration information of the experiment of colliding; conversion is magnetic-field intensity, sets when magnetizing for magnet ring 1 and 2) trigger collision alarm, safety air bag is ejected; perhaps make the high-power electronic device outage, thus protection passenger's safety.
Adopted the trigger device for crash sensor of this utility model, because it comprises internal magnetic ring and outer magnetic ring, and the internal magnetic ring outside has identical pole polarity with the outer magnetic ring inboard, therefore interior outer magnetic ring does not contact under normal conditions, when obtaining any direction enough during large acceleration/accel, internal magnetic ring overcomes repulsion motion, thereby and contact the both positive and negative polarity of the described crash sensor of conducting with outer magnetic ring, the triggering crash sensor sends collision alarm.The trigger device for crash sensor of this structure has the collision that can respond to any direction, can be recycled, and simple in structure, reliability is high, the advantage that field of application is wider.
In this specification sheets, the utility model is described with reference to its specific embodiment.But, still can make various modifications and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification sheets and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (8)
1. trigger device for crash sensor, it is characterized in that, described flip flop equipment comprises internal magnetic ring and outer magnetic ring, the cross-sectional plane of described internal magnetic ring and outer magnetic ring is annulus, described internal magnetic ring is movably set in the described outer magnetic ring, and and outer magnetic ring between have spacing, the described internal magnetic ring outside has identical pole polarity with the outer magnetic ring inboard, described internal magnetic ring is connected conductor and connects crash sensor by wire respectively with outer magnetic ring, internal magnetic ring is connected in the positive pole of crash sensor, outer magnetic ring is connected in negative pole, under the effect of certain acceleration/accel, internal magnetic ring overcomes repulsion motion, thereby and contacts the both positive and negative polarity of the described crash sensor of conducting with outer magnetic ring.
2. trigger device for crash sensor according to claim 1, it is characterized in that, described flip flop equipment also comprises upper cover plate, lower cover and insulated shell, be embedded with described outer magnetic ring in the described insulated shell, described upper cover plate and lower cover are fastened on respectively the top and bottom of described insulated shell, and described internal magnetic ring is located between described upper cover plate and the lower cover by head bearing and movable the supporting of lower bearing respectively.
3. trigger device for crash sensor according to claim 2 is characterized in that, described head bearing and lower bearing are ball bearing of main shaft.
4. trigger device for crash sensor according to claim 2 is characterized in that, the described wire that is connected between outer magnetic ring and the crash sensor is arranged in the described insulated shell.
5. trigger device for crash sensor according to claim 2, it is characterized in that, described head bearing, lower bearing, upper cover plate and lower cover are conductor, the described wire that is connected between internal magnetic ring and the crash sensor is connected between described head bearing or lower bearing or upper cover plate or lower cover and the crash sensor, and the head bearing that passes through to connect, lower bearing, upper cover plate or the described internal magnetic ring of lower cover conducting and crash sensor.
6. each described trigger device for crash sensor in 5 according to claim 1 is characterized in that, the material of described internal magnetic ring and/or outer magnetic ring is magnet steel.
7. trigger device for crash sensor according to claim 6 is characterized in that, the magnetic-field intensity between described internal magnetic ring and outer magnetic ring is preset by magnetizing to internal magnetic ring and outer magnetic ring.
8. trigger device for crash sensor according to claim 7 is characterized in that, described internal magnetic ring is all identical with magnetic-field intensity on the outer magnetic ring among direction, and described internal magnetic ring and outer magnetic ring are donut and are in stable state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364134 CN202703482U (en) | 2012-07-25 | 2012-07-25 | Collision sensor triggering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220364134 CN202703482U (en) | 2012-07-25 | 2012-07-25 | Collision sensor triggering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202703482U true CN202703482U (en) | 2013-01-30 |
Family
ID=47583812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220364134 Expired - Fee Related CN202703482U (en) | 2012-07-25 | 2012-07-25 | Collision sensor triggering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202703482U (en) |
-
2012
- 2012-07-25 CN CN 201220364134 patent/CN202703482U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20180725 |