CN108511273B - Waterproof, anti-adhesion and anti-icing starter electromagnetic switch - Google Patents
Waterproof, anti-adhesion and anti-icing starter electromagnetic switch Download PDFInfo
- Publication number
- CN108511273B CN108511273B CN201810527063.0A CN201810527063A CN108511273B CN 108511273 B CN108511273 B CN 108511273B CN 201810527063 A CN201810527063 A CN 201810527063A CN 108511273 B CN108511273 B CN 108511273B
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- China
- Prior art keywords
- movable contact
- movable
- seat
- contact seat
- wall
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- 239000007858 starting material Substances 0.000 title claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims abstract description 6
- 230000003068 static effect Effects 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
- H01H51/065—Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The electromagnetic switch comprises a switch shell, two fixed contacts fixedly arranged on a fixed contact seat at the bottom of the switch shell, an annular electromagnetic coil and a movable contact seat which are fixedly arranged on the upper and lower parts of the circumferential inner wall of the switch shell, a movable contact rod penetrating through a shaft hole in the movable contact seat, a movable contact piece arranged at the bottom of the movable contact rod, a sliding sleeve arranged on the circumferential inner wall of the electromagnetic coil, a movable iron core arranged in the sliding sleeve, wherein a conical hole is formed in the lower middle shaft hole of the movable contact seat, and a conical plug is arranged at the lower part of a rod body of the movable contact rod; a limiting sleeve is arranged at the bottom of the movable iron core, a radially symmetrical waist-shaped groove is formed in the side wall of the limiting sleeve, a cylindrical pin is arranged at the top of the movable contact rod, and the cylindrical pin is positioned in the corresponding side waist-shaped groove; two wedge-shaped plugs which are radially and symmetrically arranged are arranged between the fixed contact and the movable contact in the fixed contact seat, and a radial compression spring is connected between the wedge-shaped plugs and the circumferential inner wall of the fixed contact seat. The electromagnetic switch can prevent water vapor from entering the electromagnetic switch, prevent the movable contact from being adhered to the fixed contact and prevent the fixed contact from being frozen.
Description
Technical Field
The invention relates to a starter electromagnetic switch, in particular to a waterproof, anti-adhesion and anti-icing starter electromagnetic switch.
Background
The traditional starter electromagnetic switch comprises a switch shell, a static contact seat fixedly arranged at the bottom of the switch shell, two static contacts fixedly arranged on the static contact seat, an annular electromagnetic coil and a movable contact seat fixedly arranged on the upper and lower parts of the circumferential inner wall of the switch shell, a movable contact rod penetrating through a shaft hole in the movable contact seat, a movable contact piece arranged at the bottom of the movable contact rod, a sliding sleeve arranged on the circumferential inner wall of the electromagnetic coil, a movable iron core arranged in the sliding sleeve and a return spring connected between the movable iron core and the movable contact seat. The movable contact piece is of a double-contact structure for controlling the armature current of the starter to flow through, two ends of the movable contact piece correspond to the two fixed contacts respectively, when the electromagnetic coil is charged, the movable iron core moves downwards, so that the movable contact rod and the movable contact piece are driven to move downwards, and two ends of the movable contact piece are connected with the two fixed contacts respectively to conduct current, but the following problems exist: if the automobile is put into a low-temperature environment after flameout, the inside of a static contact seat of the electromagnetic switch of the starter is used as a relatively closed space, heat begins to be emitted outwards, two T-shaped bolts serving as static contacts are made of metal, the outer end of a cavity is connected with a cavity wire, and under the internal relatively high-temperature environment, therefore, heat loss is faster than that of the surrounding static contact seat made of plastic, the temperature is reduced to below 0 ℃ before other parts, water vapor enters the inside of the electromagnetic switch, and preferentially condenses into ice in contact areas on the surfaces of the two static contacts, the electromagnetic switch with frozen contacts cannot conduct a circuit, and the starter cannot be started normally; and the movable contact and the fixed contact can be ablated once at the moment of switching on the electromagnetic switch each time, so that the movable contact and the fixed contact are easy to adhere.
Disclosure of Invention
The invention aims to solve the technical problems and provides a waterproof, anti-adhesion and anti-icing starter electromagnetic switch which can prevent water vapor from entering the electromagnetic switch, prevent a movable contact from adhering to a fixed contact and prevent the fixed contact from icing.
The technical scheme of the invention is as follows:
The utility model provides a waterproof, anti-adhesion, anti-icing starter electromagnetic switch, including the switch shell, set firmly in the static contact seat of switch shell bottom, set firmly two static contacts on the static contact seat, set firmly in the annular solenoid and the movable contact seat that arrange from top to bottom of switch shell circumference inner wall, wear to locate the movable contact pole in the movable contact seat shaft hole, locate the movable contact piece of movable contact pole bottom, locate the sliding sleeve of solenoid circumference inner wall, locate the movable iron core in the sliding sleeve, connect the return spring between movable iron core and movable contact seat, its characterized in that: a conical hole is formed in a center shaft hole at the lower part of the movable contact seat, a conical plug is arranged below the movable contact seat on the rod body of the movable contact rod, and the taper of the conical hole is consistent with that of the conical plug; a limiting sleeve with an open lower end is arranged at the bottom of the movable iron core, the limiting sleeve is sleeved at the top of the movable contact rod, a transverse cylindrical pin is arranged at the top of the movable contact rod, two radial symmetrical vertical waist-shaped grooves are formed in the side wall of the limiting sleeve, and two ends of the cylindrical pin are positioned in the corresponding side waist-shaped grooves; two wedge-shaped plugs which are radially and symmetrically arranged are arranged between the fixed contact and the movable contact in the fixed contact seat, and a radial compression spring is connected between the wedge-shaped plugs and the circumferential inner wall of the fixed contact seat.
Further preferably, a sealing ring is hooped on the circumferential outer wall of the conical plugging, so that the sealing effect is further enhanced.
Further preferably, the two wedge-shaped plugs are staggered with the two stationary contacts.
Further preferably, an elastic sealing cover with a middle shaft hole is arranged at the top end of the switch shell, the inner edge of the elastic sealing cover is fixedly connected with the top surface of the movable iron core, rainwater is prevented from entering the starter electromagnetic switch through a gap between the movable iron core and the switch shell, and the waterproof effect is further enhanced.
The beneficial effects of the invention are as follows:
1. The lower middle shaft hole of the movable contact seat is provided with a conical hole, the lower part of the movable contact rod body of the movable contact seat is provided with a conical plug consistent with the conical degree of the conical hole, when the electromagnetic switch of the starter is not electrified, the conical plug is tightly attached to the conical hole, rainwater is prevented from entering a cavity where the movable contact piece and the fixed contact are located, and a waterproof effect is provided for the electromagnetic switch of the starter.
2. Because set up horizontal cylindric lock at movable contact rod top, be equipped with two radial symmetrical vertical waist type grooves at the stop collar lateral wall of cover at movable contact rod top, cylindric lock both ends are located corresponding side waist type inslot, battery coil outage, movable iron core drive stop collar rise in-process, stop collar kinetic energy is given in the elastic potential energy conversion of return spring, the stop collar upwards moves with the acceleration, give the cylindric lock certain impulse when vertical waist type hole bottom striking cylindric lock, movable contact piece and the static contact of movable contact rod bottom break away from under this impulse effect, avoid movable contact piece and static contact to take place the adhesion phenomenon.
3. Because the two wedge-shaped plugs which are symmetrically arranged in the static contact seat are arranged between the static contact and the movable contact, and the radial compression springs are connected between the wedge-shaped plugs and the circumferential inner wall of the static contact seat, the battery coil pushes the two wedge-shaped plugs downwards through the electric contact, the movable contact is guaranteed to be attached to the static contact, and when the battery coil is powered off, the two wedge-shaped plugs are closed to seal the static contact, so that moisture is prevented from entering the top surface of the static contact to freeze.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
In the figure: the switch comprises a switch shell, a 2-static contact seat, a 3-static contact, a 4-electromagnetic coil, a 5-dynamic contact seat, a 6-dynamic contact rod, a 7-dynamic contact piece, an 8-sliding sleeve, a 9-dynamic iron core, a 10-return spring, an 11-conical hole, a 12-conical plug, a 13-sealing ring, a 14-limiting sleeve, a 15-cylindrical pin, a 16-waist-shaped groove, a 17-wedge plug, an 18-compression spring and a 19-elastic sealing cover.
Detailed Description
As shown in fig. 1, the electromagnetic switch of the waterproof, anti-adhesion and anti-icing starter comprises a switch shell 1, a static contact seat 2 fixedly arranged at the bottom of the switch shell 1, two static contacts 3 fixedly arranged on the static contact seat 2, an annular electromagnetic coil 4 and a movable contact seat 5 fixedly arranged on the upper and lower parts of the circumferential inner wall of the switch shell 1, a movable contact rod 6 penetrating through a shaft hole in the movable contact seat 5, a movable contact piece 7 arranged at the bottom of the movable contact rod 6, a sliding sleeve 8 arranged on the circumferential inner wall of the electromagnetic coil 4, a movable iron core 9 arranged in the sliding sleeve 8, and a return spring 10 connected between the movable iron core 9 and the movable contact seat 5; a conical hole 11 is formed in a center shaft hole at the lower part of the movable contact seat 5, a conical plug 12 is arranged below the movable contact seat 5 on the rod body of the movable contact rod 6, the taper of the conical hole 11 is consistent with that of the conical plug 12, and a sealing ring 13 is hooped on the circumferential outer wall of the conical plug 12; a limiting sleeve 14 with an open lower end is arranged at the bottom of the movable iron core 9, the limiting sleeve 14 is sleeved at the top of the movable contact rod 6, a transverse cylindrical pin 15 is arranged at the top of the movable contact rod 6, two radial symmetrical vertical waist-shaped grooves 16 are arranged on the side wall of the limiting sleeve 14, and two ends of the cylindrical pin 15 are positioned in the corresponding side waist-shaped grooves 16; two wedge-shaped plugs 17 which are symmetrically arranged in the radial direction are arranged between the fixed contact 3 and the movable contact 7 in the fixed contact seat 2, the two wedge-shaped plugs 17 are arranged in a staggered way with the two fixed contacts 3, and a radial compression spring 18 is connected between the wedge-shaped plugs 17 and the circumferential inner wall of the fixed contact 3 seat; an elastic sealing cover 19 with a central shaft hole is arranged at the top end of the switch shell 1, and the inner edge of the elastic sealing cover 19 is fixedly connected with the top surface of the movable iron core 9.
The principle of the invention is as follows:
1. The lower middle shaft hole of the movable contact seat 5 is provided with a conical hole 11, the rod body of the movable contact rod 6 is positioned below the movable contact seat 5 and is provided with a conical plug 12 consistent with the conical degree of the conical hole 11, when the electromagnetic switch of the starter is not electrified, the conical plug 12 is tightly attached to the conical hole 11, rainwater is prevented from entering a cavity where the movable contact 7 and the fixed contact 3 are positioned, and a waterproof effect is provided for the electromagnetic switch of the starter.
2. Because the top of the movable contact rod 6 is provided with the transverse cylindrical pin 15, the side wall of the limit sleeve 14 sleeved at the top of the movable contact rod 6 is provided with the two radial symmetrical vertical waist-shaped grooves 16, two ends of the cylindrical pin 15 are positioned in the corresponding side waist-shaped grooves 16, in the process that the battery coil is powered off and the movable iron core 9 drives the limit sleeve 14 to ascend, the elastic potential energy of the return spring 10 is converted into the kinetic energy of the limit sleeve 14, the limit sleeve 14 moves upwards with acceleration, when the bottom of the vertical waist-shaped grooves 16 impacts the cylindrical pin 15, a certain impulse is given to the cylindrical pin 15, the movable contact piece 7 at the bottom of the movable contact rod 6 is separated from the fixed contact 3 under the action of the impulse, and the phenomenon that the movable contact piece 7 and the fixed contact 3 are adhered is avoided.
3. Because the two wedge-shaped plugs 17 which are symmetrically arranged in the static contact seat 2 and are positioned between the static contact 3 and the movable contact 7 are connected with the radial compression springs 18 between the wedge-shaped plugs 17 and the circumferential inner wall of the static contact 3 seat, the battery coil moves downwards through the movable contact 7 to push up the two wedge-shaped plugs 17, the movable contact 7 is guaranteed to be attached to the static contact 3, and when the battery coil is powered off, the two wedge-shaped plugs 17 are closed to seal the static contact 3, so that moisture is prevented from entering the top surface of the static contact 3 and icing.
The above is only a specific embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides a waterproof, anti-adhesion, anti-icing starter electromagnetic switch, including the switch shell, set firmly in the static contact seat of switch shell bottom, set firmly two static contacts on the static contact seat, set firmly in the annular solenoid that the switch shell circumference inner wall arranged from top to bottom with the movable contact seat, wear to locate the movable contact pole in the movable contact seat shaft hole, locate the movable contact piece of movable contact pole bottom, locate the sliding sleeve of solenoid circumference inner wall, locate the movable iron core in the sliding sleeve, connect at the movable iron core and move the return spring between the contact seat, its characterized in that: a conical hole is formed in a center shaft hole at the lower part of the movable contact seat, a conical plug is arranged below the movable contact seat on the rod body of the movable contact rod, and the taper of the conical hole is consistent with that of the conical plug; a limiting sleeve with an open lower end is arranged at the bottom of the movable iron core, the limiting sleeve is sleeved at the top of the movable contact rod, a transverse cylindrical pin is arranged at the top of the movable contact rod, two radial symmetrical vertical waist-shaped grooves are formed in the side wall of the limiting sleeve, and two ends of the cylindrical pin are positioned in the corresponding side waist-shaped grooves; two wedge-shaped plugs which are symmetrically arranged in the static contact seat are arranged between the static contact and the movable contact, a radial compression spring is connected between the wedge-shaped plugs and the circumferential inner wall of the static contact seat, the two wedge-shaped plugs and the two static contact are arranged in a staggered manner, a sealing ring is hooped on the circumferential outer wall of the conical plugs, an elastic sealing cover with a middle shaft hole is arranged at the top end of the switch shell, and the inner edge of the elastic sealing cover is fixedly connected with the top surface of the movable iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527063.0A CN108511273B (en) | 2018-05-29 | 2018-05-29 | Waterproof, anti-adhesion and anti-icing starter electromagnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527063.0A CN108511273B (en) | 2018-05-29 | 2018-05-29 | Waterproof, anti-adhesion and anti-icing starter electromagnetic switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108511273A CN108511273A (en) | 2018-09-07 |
| CN108511273B true CN108511273B (en) | 2024-05-10 |
Family
ID=63401733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810527063.0A Active CN108511273B (en) | 2018-05-29 | 2018-05-29 | Waterproof, anti-adhesion and anti-icing starter electromagnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108511273B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3098004B1 (en) * | 2019-06-28 | 2022-07-22 | Valeo Equip Electr Moteur | STARTER SWITCH |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629271U (en) * | 2010-04-09 | 2010-11-10 | 浙江环方汽车电器有限公司 | Electromagnetic switch |
| CN203931956U (en) * | 2014-06-23 | 2014-11-05 | 费扬 | The electromagnetic switch of automobile start-stop motor |
| CN106206177A (en) * | 2016-08-30 | 2016-12-07 | 锦州汉拿电机有限公司 | Prevent contact icing, adhesion, the starter relay of oxidation |
| CN208142103U (en) * | 2018-05-29 | 2018-11-23 | 锦州汉拿电机有限公司 | Waterproof prevents adhesion, anti-freeze starter relay |
-
2018
- 2018-05-29 CN CN201810527063.0A patent/CN108511273B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201629271U (en) * | 2010-04-09 | 2010-11-10 | 浙江环方汽车电器有限公司 | Electromagnetic switch |
| CN203931956U (en) * | 2014-06-23 | 2014-11-05 | 费扬 | The electromagnetic switch of automobile start-stop motor |
| CN106206177A (en) * | 2016-08-30 | 2016-12-07 | 锦州汉拿电机有限公司 | Prevent contact icing, adhesion, the starter relay of oxidation |
| CN208142103U (en) * | 2018-05-29 | 2018-11-23 | 锦州汉拿电机有限公司 | Waterproof prevents adhesion, anti-freeze starter relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108511273A (en) | 2018-09-07 |
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