CN102299025A - Starting relay used by heavy-duty truck - Google Patents
Starting relay used by heavy-duty truck Download PDFInfo
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- CN102299025A CN102299025A CN2011101968105A CN201110196810A CN102299025A CN 102299025 A CN102299025 A CN 102299025A CN 2011101968105 A CN2011101968105 A CN 2011101968105A CN 201110196810 A CN201110196810 A CN 201110196810A CN 102299025 A CN102299025 A CN 102299025A
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- housing
- heavy
- electric arc
- iron
- starting relay
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to a starting relay used by a heavy-duty truck. The starting relay comprises a housing, an armature, a reed, a L-shaped yoke, a coil in the housing, an iron core, a moving contact and a fixed contact. Improvement of the invention lies in that: a strip electric iron is arranged at a position on the housing, wherein the position is at an outboard at the same sides of the moving contact and the fixed contact; magnetic steel grooves are respectively and correspondingly arranged on the housing of two sides of the electric iron; permanent magnets are arranged in the magnetic steel grooves that are corresponded to each other at the two sides; and bottoms of the permanent magnets are at a top surface of the electric iron. According to the invention, magnetic forces of the permanent magnets are utilized to elongate an electric arc and a temperature produced by the electric arc is also reduced, so that the electric arc is extinguished by itself; therefore, a purpose of elimination of the electric arc is achieved and an ablation problem of starting relay contacts of a heavy-duty truck can be solved, wherein the problem is caused by the electric arc. Moreover, reliability of the starting relay is substantially improved and a security hidden trouble of outbreak of a fire of a starter is eliminated, wherein the trouble is caused by ablation of starting relay contacts.
Description
Technical field
The invention belongs to the car electrics technical field, be specifically related to the heavy-duty car starter relay.
Background technology
The starter relay of automobile is used to switch on and off electromagnetic switch circuit on the starter.The main body of starter relay is an inductance coil, when energising, can produce 5 to 10 times of impulse currents, outage the time can produce up on the inverse electromotive force of hectovolt, impulse current and inverse electromotive force all produce electric arc, the power of electric arc is by the size of electric current and the height decision of inverse electromotive force.Now the starter power of heavy-duty car such as heavy truck, motor bus, electric current is bigger, voltage also adopts 24V, outage the time can produce up on the inverse electromotive force of hectovolt, cause spark temperature that electric arc produces up to several thousand degree, easily cause the starter relay pitting of contact.Burn after the long-time energising of starter in case ablation can cause starter relay in time to cut off the power supply the starter relay contact, and therefore, starter relay directly influences the circuit safety of heavy-duty car start loop.For solving the easy ablation problem in heavy-duty car starter relay contact, slider material is selected heat resistance, electric conductivity AgSnO2 preferably usually for use, even selects fine silver, proof gold for use, and not only the cost higher efficacy is also general.
Summary of the invention
The pitting of contact problem that causes because of electric arc when working in order to solve the heavy-duty car starter relay the purpose of this invention is to provide a kind of magnetic force of permanent magnet that utilizes and carries out extinguishing arc, has the heavy-duty car starter relay of high reliability.
Concrete architecture advances technical scheme is as follows:
A kind of heavy-duty car starter relay, comprise housing 4, armature 6, reed 7, L shaped yoke 8, housing interior loop 9, iron core 10, moving contact 2 and fixed contact 3, described fixed contact 3 is fixed on the housing 4, the moving contact 2 corresponding with fixed contact 3 is fixed at an end of reed 7, the upper end of armature 6 is connecting a side of L shaped yoke 8, the opposite side middle part of L shaped yoke 8 is connecting iron core 10, and housing interior loop 9 is striden on iron core 10; The middle part of described reed 7 is sticked in armature 6 outsides, and the other end of reed 7 is connecting yoke 8;
The housing 4 in the outside, same side of described moving contact 2 and fixed contact 3 is provided with electrician's iron 5 of a strip, on the housing 4 of electrician's iron 5 both sides respectively correspondence be provided with magnet steel groove 11, be provided with permanent magnet 1 in the magnet steel groove 11 of both sides correspondence, the bottom of permanent magnet 1 is positioned on electrician's iron 5 end faces.
Described permanent magnet 1 is 8-10 ㎜ apart from the distance of moving contact 2 and fixed contact 3 same sides.
The material of described magnet steel groove 11 is plastics.
Useful technique effect of the present invention is:
1, utilizes the magnetic force of permanent magnet that electric arc is elongated, reduce the temperature that electric arc produces, thereby make the electric arc self-gravitation, reach the extinguishing arc purpose, solve the ablation problem that cause because of electric arc heavy-duty car starter relay contact.The reliability of starter relay is greatly improved, eliminated the starter potential safety hazard on fire that the starter relay pitting of contact causes.
2, the present invention improve reasonable in design, simple in structure, reliable operation.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the A of Fig. 1 is to view.
Sequence number among the last figure: permanent magnet 1, moving contact 2, fixed contact 3, housing 4, electrician's iron 5, armature 6, reed 7, L shaped yoke 8, housing interior loop 9, iron core 10, magnet steel groove 11.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described by embodiment.
Embodiment:
Referring to Fig. 1, a kind of heavy-duty car comprises housing 4, armature 6, reed 7, L shaped yoke 8, housing interior loop 9, iron core 10, moving contact 2, fixed contact 3 and permanent magnet 1 with starter relay.Fixed contact 3 is fixedly installed on the housing 4, the moving contact 2 corresponding with fixed contact 3 is fixedly installed in an end of reed 7, the upper end of armature 6 is connecting a side of L shaped yoke 8, and the opposite side middle part of L shaped yoke 8 is connecting iron core 10, and housing interior loop 9 is striden on iron core 10.The middle part of reed 7 is sticked in armature 6 outsides, and the other end of reed 7 is connecting yoke 8.Be installed with electrician's iron 5 of a strip on the housing 4 in the outside, the same side of moving contact 2 and fixed contact 3, on the housing 4 of electrician's iron 5 both sides respectively correspondence magnet steel groove 11 is installed, the material of magnet steel groove 11 is plastics.Be provided with permanent magnet 1 in the magnet steel groove 11 of both sides correspondence, the bottom of permanent magnet 1 is positioned on electrician's iron 5 end faces.Permanent magnet 1 is 9 ㎜ apart from the distance of moving contact 2 and fixed contact 3 same sides.
Under the effect in magnetic field, armature 6 is inhaled to iron core 10 pole-faces, thereby drives moving contact 2 to fixed contact 3 motions, makes the closing of contact; When housing interior loop 9 both end voltage during less than certain value, reed 7 mechanical counter-forces are during greater than electromagnetic attraction, and armature 6 is got back to initial condition, and the contact disconnects; Disconnect when producing electric arc in the contact, the magnetic force of permanent magnet 1 elongates electric arc, reduces the temperature that electric arc produces, thereby makes the electric arc self-gravitation, reaches the extinguishing arc purpose, solves because of electric arc ablation contact problems.
Claims (3)
1. heavy-duty car starter relay, comprise housing (4), armature (6), reed (7), L shaped yoke (8), housing interior loop (9), iron core (10), moving contact (2) and fixed contact (3), described fixed contact (3) is fixed on the housing (4), the moving contact (2) corresponding with fixed contact (3) is fixed at an end of reed (7), the upper end of armature (6) is connecting a side of L shaped yoke (8), the opposite side middle part of L shaped yoke (8) is connecting iron core (10), and housing interior loop (9) is striden on iron core (10); The middle part of described reed (7) is sticked in armature (6) outside, and the other end of reed (7) is connecting yoke (8), it is characterized in that:
The housing (4) in the outside, same side of described moving contact (2) and fixed contact (3) is provided with electrician's iron (5) of a strip, on the housing (4) of electrician's iron (5) both sides respectively correspondence be provided with magnet steel groove (11), be provided with permanent magnet (1) in the magnet steel groove (11) of both sides correspondence, the bottom of permanent magnet (1) is positioned on electrician's iron (5) end face.
2. a kind of heavy-duty car starter relay according to claim 1 is characterized in that: described permanent magnet (1) is 8-10 ㎜ apart from the distance of moving contact (2) and fixed contact (3) same side.
3. a kind of heavy-duty car starter relay according to claim 1 is characterized in that: the material of described magnet steel groove (11) is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101968105A CN102299025A (en) | 2011-07-14 | 2011-07-14 | Starting relay used by heavy-duty truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101968105A CN102299025A (en) | 2011-07-14 | 2011-07-14 | Starting relay used by heavy-duty truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102299025A true CN102299025A (en) | 2011-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101968105A Pending CN102299025A (en) | 2011-07-14 | 2011-07-14 | Starting relay used by heavy-duty truck |
Country Status (1)
| Country | Link |
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| CN (1) | CN102299025A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327604A (en) * | 1999-10-14 | 2001-12-19 | 松下电工株式会社 | Contactor |
| JP2003317595A (en) * | 2002-04-22 | 2003-11-07 | Jidosha Denki Kogyo Co Ltd | Relay |
| JP4181269B2 (en) * | 1999-04-15 | 2008-11-12 | タイコ・エレクトロニクス・ロジスティックス・アクチェンゲゼルシャフト | Electromagnetic relay |
| JP2009009950A (en) * | 2008-09-08 | 2009-01-15 | Fujitsu Component Ltd | Electromagnetic relay |
| CN202120827U (en) * | 2011-07-14 | 2012-01-18 | 安徽江淮汽车股份有限公司 | Starting relay for heavy duty automobile |
| CN102436977A (en) * | 2011-09-30 | 2012-05-02 | 贵州天义汽车电器有限公司 | Clapper relay |
-
2011
- 2011-07-14 CN CN2011101968105A patent/CN102299025A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4181269B2 (en) * | 1999-04-15 | 2008-11-12 | タイコ・エレクトロニクス・ロジスティックス・アクチェンゲゼルシャフト | Electromagnetic relay |
| CN1327604A (en) * | 1999-10-14 | 2001-12-19 | 松下电工株式会社 | Contactor |
| JP2003317595A (en) * | 2002-04-22 | 2003-11-07 | Jidosha Denki Kogyo Co Ltd | Relay |
| JP2009009950A (en) * | 2008-09-08 | 2009-01-15 | Fujitsu Component Ltd | Electromagnetic relay |
| CN202120827U (en) * | 2011-07-14 | 2012-01-18 | 安徽江淮汽车股份有限公司 | Starting relay for heavy duty automobile |
| CN102436977A (en) * | 2011-09-30 | 2012-05-02 | 贵州天义汽车电器有限公司 | Clapper relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111228 |