JPH0686495A - Resin mold motor - Google Patents

Abstract

PURPOSE:To enable the use of a connector and thereby to improve operability by opening a hole in a base board under the connector. CONSTITUTION:A contact-bonded connector of a direct fitting type is so fitted on a control base board 1 as to be horizontal to the board and a hole (a) is opened in the board just under a part of connection of a contact 18 with a lead wire 17. According to this constitution, the connector can be used and connected to the control base board when the lead wire is led out of the base board in a mold, in a resin mold motor, and improvement of operability can be attained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin mold electric motor in which a stator and a motor control board are integrated.

[0002]

2. Description of the Related Art Conventionally, when a lead wire is pulled out from a board, a worker does not individually use a connector housing but simply connects the lead wire to a contact for soldering to the board due to a problem of resin flow. It was However, this method could not cope with wiring mistakes in the lead wire or the number of lead wires.

[0003]

When a lead wire is pulled out by using a direct-attach type crimp connector which is mounted on a control board horizontally with the board, when the resin molding is performed, the lead wire is connected to the inside of the connector housing and the lead wire and the contact connecting portion. The resin did not flow well. An object of the present invention is to make a lead wire into a connector and to allow the resin to sufficiently flow into the inside of the connector housing.

[0004]

[Means for Solving the Problems] In the motor control board in a resin mold, when a lead wire is pulled out using a direct-attach type crimp connector that is mounted horizontally to the board, By making a hole in the board, the structure facilitates the flow of resin into the connector housing and into the contact and lead wire connecting portion.

[0005]

When the resin is molded by using the direct-attaching type crimp connector that is horizontally mounted on the board, it is necessary to consider the flow of the resin into the connector housing and into the connection between the contact and the lead wire. This is especially required for a motor having a waterproof structure, and if resin does not flow sufficiently, drops or the like will penetrate to the contact portion of the connector along the lead wire and cause corrosion of the contact.

The present invention facilitates resin inflow by making holes in the contact and the board directly below the lead wire connecting portion of the direct-attach type crimp connector which is mounted horizontally on the board, thereby making the lead wire a connector and improving reliability. This makes it possible to improve the performance, and even if it is made into a connector, it can be used in a bad environment.

[0007]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a schematic structure of a brushless motor in which a stator 3 and a control board 1 are integrally resin-molded.

A main magnet 5 and a sensor magnet 6 are attached to the output shaft 8 and ball bearings 10 and 11 are provided.
Is supported by the end brackets 12 and 13 from both sides of a stator set 14 in which a stator and a control board are integrally molded. The connector housing 2 and the contact 18 are attached to the control board 1, and the lead wire 17 is drawn out from the lead-out portion 15 to the outside of the motor. This contact 18 and lead wire 1
By making a hole a in the substrate 1 directly below the connection portion of 7, the resin can be easily flowed into the connector housing 2 and the like.

FIG. 2 is a schematic view of the control board 1 integrally molded with the stator 3.

The connector housing 2 and the contact 18 are attached as shown in (1) and (2) of FIG.
Are soldered from the pattern surface of the control board 1.

FIG. 3 is a detailed view of the control board hole a, the connector housing 2 and the contact 18 according to the present invention.

FIG. 3A shows the shape of the back side of the connector 2, that is, the pattern surface of the control board 1. The hole a provided in the control board 1 is opened from right under the connecting portion between the lead wire 17 and the contact 18 to a position slightly protruding from the end surface of the connector housing 2 to the lead wire 17 side.

As described above, in the present invention, in the electric motor in which the stator and the motor control board are integrally resin-molded, when the lead wire is pulled out by the direct-attach type crimp connector which is horizontally mounted on the control board, the contact and the lead of the connector are connected. By making a hole in the substrate directly below the wire connecting portion and making it easier for the mold resin to flow into the inside of the connector housing and the contact and lead wire connecting portion, a connector can be formed and workability can be improved.

[0015]

According to the present invention, by providing a hole in the control board and facilitating the inflow of the mold resin, it is possible to draw out the lead wire by using a direct-attach type crimp connector that is mounted horizontally to the board. Therefore, workability and reliability can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a front view and a side view of a substrate set used in the present invention.

FIG. 3 is a front view of a connector and a board used in the present invention,
It is a left side view and a right side view.

[Explanation of symbols]

1 ... Control board, 2 ... Connector housing, 3 ... Stator, 14 ... Mold assembly, 17 ... Lead wire, 18 ... Contact, a ... Control board hole.

Claims (1)

[Claims] 1. A motor in which a stator and a motor control board are integrally resin-molded, and a connector is directly attached to the motor control board in the resin mold so as to be mounted directly on the board when a lead wire of the motor is pulled out. A resin-molded electric motor having a structure in which a hole is formed in a substrate directly below a connection portion of the contact and the lead wire to facilitate inflow of the mold resin into the inside of the connector housing and the connection portion of the contact and the lead wire.