CN205609448U - Starter and electromagnetic switch thereof - Google Patents
Starter and electromagnetic switch thereof Download PDFInfo
- Publication number
- CN205609448U CN205609448U CN201620170181.7U CN201620170181U CN205609448U CN 205609448 U CN205609448 U CN 205609448U CN 201620170181 U CN201620170181 U CN 201620170181U CN 205609448 U CN205609448 U CN 205609448U
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- contact
- spring
- electromagnetic switch
- room
- core body
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- 239000007858 starting material Substances 0.000 title claims abstract description 14
- 230000000284 resting effect Effects 0.000 claims description 11
- 230000005489 elastic deformation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000005672 electromagnetic field Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
Abstract
The utility model discloses a starter and electromagnetic switch thereof. Wherein, electromagnetic switch joint spring elasticity predeformation install between the first end of joint pole and core and apply the power towards the bonding station to the first end to exert the power towards the rest position to the core. Install to joint spring elasticity predeformation between the head of the first end of joint pole and contact bridge and exert the power towards the operating position to the head to apply the power that the orientation breaks away from the position to the first end. The electromagnetic switch simple structure of starter, it is easy to make.
Description
Technical field
The application relates to starter, particularly relates to the electromagnetic switch of starter.
Background technology
Modern motor vehicles generally uses power-actuated starter to start electromotor, and starter includes core body, engages the movable part such as bar and contact bridge.Core body and resets to operating position motion under the action of the spring from resting guard under the electromagnetic force of solenoid.Engage bar under the driving of core body, pull the flywheel of little gear engagement engine, and need to provide spring to provide buffering when little gear is interfered with flywheel teeth position.Contact bridge realizes the action of make contact under the driving of core body, and resets under the action of the spring.But, existing design elements is various, and structure is complicated.
Therefore, it is necessary to improve to overcome technical problem present in prior art.
Utility model content
The problem of the electromagnetic switch structure complexity of the mainly starter that the application is to be solved.
For solving above-mentioned technical problem, on the one hand the application provides electromagnetic switch, and it includes housing and is installed on the coil of described housing, and described coil produces magnetic field in the case of energising, being fixed with the first contact and second contact of electrically insulated from one another on described housing, it also includes:
Core body, it can be movably arranged in described housing in the effective range in described magnetic field vertically between resting guard and operating position, and described core body includes the most through cavity；
Engaging bar, it has the first end being arranged in described cavity and extends to the second end outside described core body, and described first end can move back and forth between bonding station and disengaging configuration relative to described housing in described cavity vertically；
Contact bridge, it has the head being arranged in described cavity, described head can move back and forth between on-position and open position relative to described housing in described cavity vertically, at described on-position, described first contact is electrically connected by described contact bridge with described second contact, at described open position, described contact bridge disconnects the electrical connection between described first contact and described second contact；
Engage spring, be installed between described first end and described core body to its elastic predeformation and described first end is applied the power towards described bonding station, and described core body is applied the power towards described resting guard；
Associating spring, is installed between described first end and described head to its elastic predeformation and described head applies the power towards described on-position, and described first end is applied the power towards described disengaging configuration.
On the other hand, the application provides starter, it includes driving motor, little gear and aforesaid electromagnetic switch, and described first contact and the second contact are electrically connected between described driving motor and power supply, and described joint bar connects described little gear by link gear and it can be driven to move axially in reciprocal fashion.
The most jointly acting on combining spring owing to engaging spring, electromagnetic switch can realize multiple duty with little parts, its simple in construction reliable operation.
Accompanying drawing explanation
In conjunction with accompanying drawing refering to the detailed description of detailed description below, the application be will be more fully appreciated.Wherein:
Fig. 1 shows the schematic diagram of the starter according to a kind of detailed description of the invention of the application；
Fig. 2 shows the schematic diagram of the electromagnetic switch according to a kind of detailed description of the invention of the application, and wherein core body is in resting guard, joint bar reaches disengaging configuration and contact bridge is positioned at open position；
Fig. 3 shows that coil electricity, core body are in operating position, joint bar reaches bonding station and contact bridge reaches the schematic diagram of electromagnetic switch during on-position；
Fig. 4 shows that coil electricity, core body are in operating position, contact bridge reaches on-position but engages bar schematic diagram of electromagnetic switch when can not enter bonding station；And
Fig. 5 shows coil blackout, and contact bridge resets to open position from on-position, core body resets to resting guard from operating position but engages bar and is stuck in the schematic diagram of electromagnetic switch when bonding station can not reset.
Detailed description of the invention
Describe the detailed description of the invention of the application below in conjunction with the accompanying drawings in detail.
Fig. 1 shows the schematic diagram of the starter 100 according to a kind of detailed description of the invention of the application, eliminates electromagnetic switch 1 and the details of motor 61 in figure.Starter 100 includes driving motor 61, little gear 62 and electromagnetic switch 1.Incorporated by reference to refering to Fig. 2 to Fig. 5, engage bar 3 and connect little gear 62 by the link gear being made up of parts such as dead man 63 and output shafts 64 and can move axially in reciprocal fashion by driving pinion 62.In first contact 11 of electromagnetic switch 1 and the second contact 12 one is electrically connected to drive motor 61, and another is used for electric connection of power supply (not shown).It is to say, the first contact 11 and the second contact 12 are electrically connected to drive between motor and power supply.When needs start electromotor (not shown), electromagnetic switch 1 is energized and driving pinion 62 moves to the left side of Fig. 1 and engages the flywheel 7 of electromotor, motor 61 is switched on power simultaneously, motor 61 is energized and operates and transfer power to little gear 62, and little gear 62 drives electromotor by flywheel 7.After the engine is started up, by electromagnetic switch 1 power-off, little gear 62 departs from flywheel 7, and motor 61 is de-energized and shuts down.
Electromagnetic switch 1 includes housing 10 and is installed on the coil 13,14 of housing 10.The first contact 11 and the second contact 12 of electrically insulated from one another it is fixed with on housing 10.Coil 13,14 produces magnetic field in the case of energising, and core body 2 can be along axle X to being movably arranged in housing 10 between resting guard and operating position in the effective range in magnetic field.According in the detailed description of the invention of the application, it is provided that two coils, i.e. first coil 13 and the second coil 14.When core body 2 to be driven, first coil 13 and 14 two coils of the second coil are energized simultaneously, thus bigger electromagnetic force is provided, after core body 2 reaches operating position, can be by one of them power-off (the such as second coil 14 or first coil 13) of both first coil 13 and the second coil 14, another (such as first coil 13 or second coil 14) continues energising, thus with smaller power consumption, core body 2 is maintained at operating position.
Core body 2 includes the most through cavity 20.Cavity 20 includes the second Room 22 of the first Room 21 being interconnected, and the first Room 21 and the second Room 22 are coaxially arranged cylindrical space.The radial dimension of the first Room 21 is more than the radial dimension of the second Room 22, and forms step 23 in therebetween.In detailed description of the invention as depicted, cavity 20 has the first relative opening 24 and the second opening 25, first opening 24 connects the first Room 21 in one end axially opposing with the second Room 22, and the second opening 25 connects the second Room 22 in one end axially opposing with the first Room 21.First opening 24 has the radial dimension less than the first Room 21, the second opening 25 have less than the second Room 22 radial dimension.
Engage bar 3 and load cavity 20 from the first opening 24.The radial dimension of the first end 31 engaging bar 3 is more than the radial dimension of its body part, is arranged in the second Room 22 to the first end 31 matched in clearance, and can move back and forth vertically between bonding station and disengaging configuration relative to housing 10.The second end 32 engaging bar 3 extends to outside core body 2 through the second opening 25.
Contact bridge 4 has the motion bar 40 and movable contact spring 42 interfixed.Movable contact spring 42 is electric conductor, and motion bar 40 can move relative to housing 10, and head 41 is positioned at one end away from movable contact spring 42 of motion bar 40.Therefore head 41 and movable contact spring 42 can with contact bridge 4 entirety along axle X to reciprocatingly.Head 41 is arranged in the first Room 21, head 41 can relative to housing 10 between on-position and open position along axle X to back and forth removably mounting within cavity 20.At on-position, movable contact spring 42 contacts the first contact 11 and the second contact 12 simultaneously, and the first contact 11 is electrically connected by contact bridge 4 with the second contact 12.At open position, movable contact spring 42 does not contact the first contact 11 and the second contact 12, and contact bridge 4 disconnects the electrical connection between the first contact 11 and the second contact 12.
Electromagnetic switch 1 includes three springs, i.e. engages spring 51, associating spring 52 and back-moving spring 53.
It is installed in the second Room 22 between first end 31 and core body 2 with engaging the elastic predeformation of spring 51.Engaging spring 51 is that the second opening 25 periphery other end that joint spring 51 one end is resisted against inside the second Room 22 is resisted against the bigger first end of radial dimension 31 around engaging the helical spring that bar 3 is installed.
It is installed in the second Room 22 between first end 31 and head 41 to the elastic predeformation of associating spring 52, and when core body 2 reaches resting guard partially in the first Room 21.Associating spring 52 applies the power of towards on position to head 41, and first end 31 is applied the power towards disengaging configuration.In feasible detailed description of the invention, engage the coefficient of elasticity coefficient of elasticity more than associating spring 52 of spring 51.
Back-moving spring 53 is installed between housing 10 and contact bridge 4 by pre-elastic deformation, and contact bridge 4 applies the power making it to open position motion.
Although electromagnetic switch 1 simple in construction according to the application, but various states can be realized.
As Fig. 2 shows, when coil 13,14 is not powered on, core body 2 is held in resting guard under the effect engaging spring 51, and contact bridge 4 is held in open position under the effect of back-moving spring 53, engages bar 3 and is held in disengaging configuration under engaging the common effect of spring 51 and associating spring 52.
As Fig. 3 shows, when coil 13,14 is energized, it produces electromagnetic field, core body 2 moves along axle X to the dextrad of Fig. 3 under the sucking action of electromagnetic field, contact head 41 is applied the power of towards on position to it by the step 23 of the left end that the first Room 21 is axial, until head 41 reaches on-position, now the movable contact spring 42 of contact bridge 3 contacts the first contact 12 and the second contact 12 simultaneously, and now core body 2 is held in operating position.Therefore, when being positioned at on-position, back-moving spring 53 is more than associating spring 52 to contact bridge 4 in the power axially applied to contact bridge 4 in the power axially applied.While core body 2 moves, engage bar 3 and reached bonding station by driving.
But, little gear 62 may exactly be interfered with the tooth of flywheel 7 and can not enter and engage, and therefore engaging bar 3 cannot be reached bonding station by driving.As Fig. 4 shows, if engaging bar 3 during coil 13,14 energising can not enter bonding station, core body 2 will move to operating position under the effect of electromagnetic field, engage spring 51 will be increased elastic compression deflection, step 23 will contact head 41 and drive contact bridge 4 to reach on-position.Now, motor 61 is energized and operates, thus little gear 62 rotates and may find the position engaged with flywheel 7, and after little gear 62 finds the position of engagement, the joint spring 51 being increased deflection discharges elastic potential energy and drives joint bar 3 to reach bonding station.
In another kind of situation, joint bar 3 may be stuck in bonding station and can not reset.As Fig. 5 shows, by coil 13,14 power-off, electromagnetic field disappears, core body 2 will reset from operating position to resting guard under the effect engaging spring 51 and under the head 41 effect to step 23 at least in part, associating spring 53 can be increased elastic compression deflection and provide buffering, contact bridge 4 remains to reset to open position from on-position under the effect of back-moving spring 53, can be prevented effectively from motor 61 and is energized for a long time and burn.
Above detailed description of the invention is merely to illustrate the application, and not restriction to the application, about the those of ordinary skill of technical field, in the case of without departing from scope of the present application, it is also possible to make a variety of changes and modification.The technical scheme of the most all equivalents falls within the category of the application, and the scope of patent protection of the application should be defined by the claims.
Claims (10)
1. electromagnetic switch (1), it includes housing (10) and is installed on the coil (13,14) of described housing (10), described coil (13,14) produces magnetic field in the case of energising, the first contact (11) and the second contact (12) of electrically insulated from one another it are fixed with on described housing (10), it is characterized in that, it also includes:
Core body (2), it can be along axle (X) to being movably arranged in described housing (10) between resting guard and operating position in the effective range in described magnetic field, and described core body (2) includes the most through cavity (20)；
Engage bar (3), it has the first end (31) being arranged in described cavity (20) and extends to described core body (2) the second end (32) outward, and described first end (31) can move back and forth between bonding station and disengaging configuration relative to described housing (10) in described cavity (20) vertically；
Contact bridge (4), it has the head (41) being arranged in described cavity (20), described head (41) can move back and forth between on-position and open position relative to described housing (10) in described cavity (20) vertically, at described on-position, described first contact (11) is electrically connected by described contact bridge (4) with described second contact (12), at described open position, described contact bridge (4) disconnects the electrical connection between described first contact (11) and described second contact (12)；
Engage spring (51), it is installed between described first end (31) and described core body (2) to its elastic predeformation and described first end (31) is applied the power towards described bonding station, and described core body (2) is applied the power towards described resting guard；
Associating spring (52), it is installed between described first end (31) and described head (41) to its elastic predeformation and described head (41) is applied the power towards described on-position, and described first end (31) is applied the power towards described disengaging configuration.
Electromagnetic switch the most according to claim 1 (1), wherein, described cavity (20) has relative the first opening (24) and the second opening (25), described joint bar (3) loads described cavity (20) from described first opening (24), and the second end (32) of described joint bar (3) extends to described core body (2) outward through described second opening (25).
Electromagnetic switch the most according to claim 2 (1), wherein, described joint spring (51) is the helical spring installed around described joint bar (3), and described joint spring (51) one end is resisted against described second opening (25) the periphery other end and is resisted against described first end (31).
Electromagnetic switch the most according to claim 1 (1), wherein, described joint spring (51) and described associating spring (52) are by elastic precompression, and the coefficient of elasticity of described joint spring (51) is more than the coefficient of elasticity of described associating spring (52).
Electromagnetic switch the most according to claim 1 (1), it also includes the back-moving spring (53) being installed between described housing (10) and described contact bridge (4), and described back-moving spring (53) is applied the power making described head (41) move to described open position by pre-elastic deformation to described contact bridge (4).
Electromagnetic switch the most according to claim 5 (1), wherein, when described core body (2) is positioned at described operating position and described head (41) is positioned at described on-position, described back-moving spring (53) is more than described associating spring (52) to described contact bridge (4) in the power axially applied to described contact bridge (4) in the power axially applied.
Electromagnetic switch the most according to claim 2 (1), wherein, described cavity (20) includes the first room (21) near described first opening (24), described head (41) is arranged in described first room (21), when described core body (2) is positioned at described operating position, head (41) described in the end thereof contacts that described first room (21) is axial and it is applied towards the power of described on-position.
Electromagnetic switch the most according to claim 7 (1), wherein, described cavity (20) also includes the second room (22) connecting described second opening (25) and described first room (21), described first room (21) is coaxial with described second room (22), and the first end of described joint bar (3) is arranged in described second room (22).
Electromagnetic switch the most according to claim 8 (1), wherein, between described first room (21) and described second room (22), there is step (23), when described core body (2) is positioned at described operating position, described step (23) contacts described head (41) and it is applied the power towards described on-position.
10. starter (100), it is characterized in that, it includes driving motor (61), little gear (62) and according to the electromagnetic switch (1) according to any one of claim 1 to 9, described first contact (11) and the second contact (12) are used for being electrically connected between described driving motor (61) and power supply, and described joint bar (3) connects described little gear (62) by link gear and it can be driven to move axially in reciprocal fashion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170181.7U CN205609448U (en) | 2016-03-07 | 2016-03-07 | Starter and electromagnetic switch thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620170181.7U CN205609448U (en) | 2016-03-07 | 2016-03-07 | Starter and electromagnetic switch thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205609448U true CN205609448U (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620170181.7U Active CN205609448U (en) | 2016-03-07 | 2016-03-07 | Starter and electromagnetic switch thereof |
Country Status (1)
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| CN (1) | CN205609448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683948A (en) * | 2016-03-07 | 2017-05-17 | 罗伯特博世电机（中国）有限公司 | Starter and electromagnetic switch thereof |
-
2016
- 2016-03-07 CN CN201620170181.7U patent/CN205609448U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683948A (en) * | 2016-03-07 | 2017-05-17 | 罗伯特博世电机（中国）有限公司 | Starter and electromagnetic switch thereof |
| CN106683948B (en) * | 2016-03-07 | 2018-09-07 | 索恩格汽车部件（中国）有限公司 | Starter and its electromagnetic switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170222 Address after: 410100 Hunan province Changsha Changsha City Economic and Technological Development Zone Li Xiang Road No. 26 building 103 Patentee after: Robert BOSCH electric (China) Co., Ltd. Address before: Changsha County City, Hunan province China Changsha Changsha economic and Technological Development Zone Li Xiang Road No. 26 Patentee before: Bosch Automotive Products (Changsha) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410100 Hunan province Changsha Changsha City Economic and Technological Development Zone Li Xiang Road No. 26 building 103 Patentee after: Thorne (China) lattice Auto Parts Co., Ltd. Address before: 410100 Hunan province Changsha Changsha City Economic and Technological Development Zone Li Xiang Road No. 26 building 103 Patentee before: Robert BOSCH electric (China) Co., Ltd. |