KR19990041047U - Stop for automotive alternator. - Google Patents

Abstract

The present invention relates to a stop for an automotive alternator, and the copper plate shape of the terminal is bent from an enclosed type to an open shape, and the lead wire is welded to one side and one side of the copper plate to improve workability, productivity and production cost. Press-fit diodes 4, 5, and 6 are press-fitted and fixed on the heat sinks 30 and 31 constituting the stop, and lead wires 7, 8, and 9 of the press-in diode are connected to the terminal assembly 36. It is fixed by welding with the copper plate 37 protruding to one side of the, and the terminal copper plate 37 is provided to bend one side to form a roughly "b" shape, the center of the diode (4, 5, 6) One surface of the lead wires 7, 8, and 9 positioned and the bent surface 38 of the terminal copper plate 37 are in contact with each other so that the lead wires 7, 8, and 9 may be vertically fixed.

The stopper for the automotive alternator, which is designed as described above, improves weldability due to the simplification of the bent portion within a limited assembly space, thereby increasing space utilization, and facilitates inspection due to the open welded portion, thereby reducing defects by improving quality. And, it is a useful design that the production cost is reduced by simplifying the part shape.

Description

Stop for automotive alternator.

The present invention relates to a stop for an automotive alternator, and more particularly, to improve productivity and improve cost by improving the shape of a terminal to which a lead wire of a diode is fixed.

The automotive alternator is one of the engine electronics, which is connected to the gin and belt to charge the consumed battery power and to supply the current required for the operation of other electronics.

The automotive alternator 1 has a stator assembly 14 including a stator core 12 and a stator coil 13 inserted between the front 10 and the rear housing 11, as shown in FIG. The rotor shaft 16 is provided by the bearing 15 is pressed into the front and rear housing (10,11).

In the middle of the rotor shaft 16, the spool bobbin 19, which is wound around the rotor coil 17 and connected to the rear slip ring 18, is press-fitted, and a plurality of rotor poles 20, 21 in the axial direction outside thereof. Rotor assembly 24 is provided in a configuration to accommodate the rotor core (22, 23) having a spool bobbin (19).

Outside the slip ring 18 of the rotor assembly 24, a voltage regulator 25 for maintaining the voltage generated by the rotor and the stator assembly 14 in a constant state and a stop value 26 for converting AC into direct current are fixed. do.

The stop is composed of a heat sink capable of dissipating a heat source generated in the diode and the diode to rectify the current produced during the power generation process and prevent the battery voltage from flowing back when charging the battery.

The press-fit diodes constituting the stop configured as described above are press-fitted on each of the anode heat sink and the cathode heat sink, respectively, and the lead wires of the pressurized diodes are connected by welding with the terminal to protrude upward of the terminal assembly.

However, when connecting the lead wire of the push-in type diode with the copper plate of the terminal, the copper plate of the terminal is formed into a flat plate, and one side thereof has a through-hole to be bent in a closed type.

The lead wire is inserted into the through-hole formed in the closed type as described above, and the coupling part is fixed by welding.

As such, when the lead wire is inserted into the through-hole formed in the terminal copper plate and fixed by welding, it is difficult to judge the quality of the product due to difficulty in inspection.

Therefore, in the present invention, a bent portion is formed in the terminal copper plate of the flat plate, which is designed to solve the various problems described above, and welds only one surface of the contact portion between the one side and the lead wire, thereby improving productivity and cost of production. To achieve the savings.

1 is an overall cross-sectional view showing an automotive alternator,

Figure 2 is a plan view showing a stop of the alternator to which the present invention is applied,

3 is a front view of FIG. 2;

4 is a rear view of the stop applied to the present invention,

5 is a detailed view showing a coupling state of a terminal and a diode lead, which is a main part of the present invention.

* Explanation of symbols used in the main part of the drawing *

4,5,6; Press-fit diode

7,8,9; Lead wire

30,31; Heatsink

37; copper

39; Bend

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

2 is a plan view showing a stop of the alternator to which the present invention is applied, FIG. 3 is a front view of FIG. 2, FIG. 4 is a rear view of the stopch to which the present invention is applied, and FIG. It will be described together as a detailed view showing the coupling state.

The automobile alternator includes a plurality of diodes and terminal assemblies on the heat sink to form a stop for converting the alternating current generated by the rotor and the stator into direct current.

2 and 3, the stop value 3 faces the anode heat dissipation plate 30 and the cathode heat dissipation plate 31, each of which is formed of a metal plate material having good thermal conductivity, so as to face each other. Interconnect using terminal assembly 36 and rivet 34.

The cathode heat sink (31) is in contact with the cover of the generator 1 is cooled by conduction, the cathode heat sink (30) is cooled by convection air by a cooling fin (not shown) disposed in the interior of the generator As will be configured a plurality of heat dissipation fins 35 on the side of the anode heat sink.

The press-fit diodes 4, 5 and 6 are press-fitted and fixed on both heat sinks 30 and 31 configured as described above, and the lead wires 7, 8 and 9 of the press-fit diode protrude toward one side of the terminal assembly 36. The copper plate 37 is fixed by welding.

The triodes 4 ', 5', and 6 'are fixed with epoxy on the terminal assembly 36, and the lead wires 7', 8 'and 9' are formed on the terminal assembly 36. (40, 41, 42) is connected to the voltage regulator 38 through the trio terminal 43, the other lead wire is connected to the stator terminals (44, 45, 46).

The fastening structure of the copper plate 37 protruding on one side of the press-fit diodes 4, 5, 6 and the terminal assembly 36 is bent one side of the copper plate 37 as shown in FIG. Make it "b".

The bent portion 38 of the terminal copper plate 37 is bent to be in contact with one surface of the lead wires 7, 8, and 9 located at the center of the diodes 4, 5, and 6 so that the lead wires 7, 8, and 9 are perpendicular to each other. To be fixed.

Looking at the action state of the automotive alternator stop of the present invention configured as described above; First, heat-resistant press-fit diodes 4, 5, and 6 are press-fitted and fixed on the anode heat sink 30 and the cathode heat sink 31.

After fixing the diodes 4, 5, and 6 as described above, the terminal copper plate bent in the form of “B” is press-fitted into the terminal assembly 36 so that the bent surface 38 is the diodes 4, 5, and 6. To coincide with the center of

Lead wires 7, 8 and 9 drawn in the vertical direction are provided at the center of the diodes 94, 5 and 6 which are press-fit and fixed on both heat sinks 30 and 31 as described above. 9) is fixed to the bent portion 38 of the terminal copper plate 37 fixed to the terminal assembly 36 by welding.

As described above, welding is performed on a portion where only one surface of the bent surface 38 and the lead wires 7, 8, and 9 of the terminal copper plate 37 come into contact with each other. Can be prevented in advance.

The stopper for the automotive alternator, which is designed as described above, improves weldability due to the simplification of the bent portion within a limited assembly space, thereby increasing space utilization, and facilitates inspection due to the open welded portion, thereby reducing defects by improving quality. And, it is a useful design that the production cost is reduced by simplifying the part shape.

Claims (1)

The automobile alternator includes a plurality of diodes and terminal assemblies on a heat sink to constitute a stop for converting alternating current generated by the rotor and the stator into direct current; The stop 3 is connected to the anode heat dissipation plate 30 and the cathode heat dissipation plate 31 formed by processing the metal plate material having good thermal conductivity, and the terminal assembly 36 and the rivet (between the insulators) therebetween. Interconnect using 34); The press-fit diodes 4, 5, and 6 are press-fitted and fixed on the heat sinks 30 and 31, and the lead wires 7, 8, and 9 of the press-in diodes protrude toward one side of the terminal assembly 36. ) And fixed by welding, The terminal copper plate 37 is bent at one side thereof, and the shape thereof is formed to form a roughly “b” shape. The terminal copper plate 37 and one surface of the lead wires 7, 8, and 9 located at the center of the diodes 4, 5, and 6 are formed. A stop value for an automotive alternator, characterized in that the bent surface (38) of the) to be in contact with each other so that the lead wires (7, 8, 9) can be fixed vertically.