Check patentability & draft patents in minutes with Patsnap Eureka AI!

Switching apparatus for starter

By integrating the pinion pushing device, the main contact switching device, the resistor and the energization path switching device in a single housing, the problems of installation complexity and high cost caused by independent components in the prior art are solved, and a compact device design is achieved and reduce the number of cables.

Inactive Publication Date: 2011-08-10
DENSO CORP
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, since the first cable for connecting the battery and the electromagnetic relay and the second cable for connecting the electromagnetic relay and the electromagnetic switch are required, the number of processes increases as the number of cables increases, which results in higher manufacturing cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0024] Such as figure 1 and image 3 As shown, the switching device 1 for a starter according to the first embodiment of the present invention includes: a resistor 4 adapted to suppress the starting current to the motor 2; an electromagnetic relay 5 adapted to switch between an energization path through the resistor 4 (higher resistance energization path) and an energization path bypassing the resistor 4 (lower resistance energization path); and An electromagnetic switch 6 adapted to push the pinion (not shown) of the starter towards the ring gear of the engine and switch on / off the energizing current of the electric motor 2 .

[0025] The device 1 includes a single housing in which a resistor 4, an electromagnetic relay 5, and an electromagnetic switch 6 are integrally accommodated, and the device 1 is fixed to a starter housing 7 radially outside of the motor 2 and near the motor 2, as figure 2 shown.

[0026] will now refer to figure 1 and figure 2 An exemplary struc...

no. 2 example

[0108] The switchgear 1 for a starter according to the second embodiment of the present invention differs from the switchgear 1 according to the first embodiment of the present invention as described above in that in the second embodiment the electromagnetic switches are connected in series style. In other words, in the second embodiment, the functional elements of the electromagnetic switch 6 for pushing the pinion and the electromagnetic switch 6 for opening and closing (ie, switching) the main contacts are different from each other and are controlled independently.

[0109] Since all functional elements of the switching device of the second embodiment are substantially the same as those of the switching device of the first embodiment except the above-mentioned functional elements of the electromagnetic switch 6, reference will be made below to Figure 4 To illustrate the above functional elements only, the Figure 4 In , like reference numerals denote like elements.

[01...

no. 3 example

[0124] Similar to the switchgear 1 for a starter according to the first embodiment, the switchgear according to the third embodiment includes an electromagnetic switch 6 which, in combination with the movement of the plunger 10, pushes the pinion and the switch (ie, opens and closed) main contacts. Unlike the first embodiment, however, the electromagnetic relay 5 of the third embodiment has a normally open contact structure. That is, once the relay coil 17 is energized, the relay contacts are closed.

[0125] In the first embodiment, the relay contacts and the main contacts are arranged in series with each other between the B terminal 11 and the M terminal 12, and the resistor 4 is connected in series with the relay contacts. The resistor 4 and the relay contacts are arranged oppositely. In other words, resistor 4 is on the higher voltage side of the relay contacts and the relay contacts are on the Figure 6 the lower voltage side of the relay contacts in the

[0126] Simila...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

There is disclosed a switching apparatus for a starter (1) comprising a resistor (4) for suppressing a startup current of a motor (2) when an engine is started, an electromagnetic relay (5) for bypassing the resistor to energize the motor after the motor is started, a function for pushing a pinion of the starter toward a ring gear, an electromagnetic switch (6) for opening and closing a main contact of the motor circuit. The resistor (4), the electromagnetic relay (5), and the electromagnetic switch (6) are integrally accommodated inside a housing formed of a metallic bottomed frame (8) and a contact cover (9), and are connected to the motor circuit via two external connection terminals (11, 12) fixed to the contact cover (9). The apparatus can facilitate connectivity to the vehicle side by reducing the number of cables and can enhance an installation property.

Description

technical field [0001] The invention relates to a switching device for a starter comprising a resistor for suppressing the starting current of the electric motor when starting the engine, and a functional element for bypassing the resistor to energize the electric motor after starting the engine. Background technique [0002] Typically, the starter motor used to start the engine includes a functional element for pushing the pinion gear towards the engine's ring gear, and for opening and closing the motor circuit (i.e., the circuit for applying current from the battery to the motor) The electromagnetic switch of the main contact. [0003] When starting the motor, ie when the electromagnetic switch closes the main contacts, a relatively high current called inrush current flows from the battery into the motor. Therefore, a phenomenon called "hit" may occur in which the terminal voltage of the battery drops significantly, which causes a momentary failure of electrical equipment...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01H51/04H01H50/54
CPCF02D2400/18H01H50/14F02N15/067H01H51/065F02N11/087F02N11/08F02N15/02
Owner DENSO CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com