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Terminal base of electric motor

A terminal block and motor technology, which is applied in the manufacture of motor generators, electric components, circuits, etc., can solve the problems of complex manufacturing process, unstable quality, and increased manufacturing cost of terminal block 111.

Inactive Publication Date: 2006-04-19
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the conventional manufacturing method of the terminal block 111, since the process of embedding the connecting conductors 116a to 116c and the capacitor 117 in the insulating material is separated, the manufacturing time becomes longer, the manufacturing efficiency deteriorates, and the manufacturing cost of the terminal block 111 increases.
Moreover, due to the complicated manufacturing process, there is also a problem that it is easy to cause unstable quality.

Method used

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  • Terminal base of electric motor
  • Terminal base of electric motor
  • Terminal base of electric motor

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0043] see below Figure 1 to Figure 5A first embodiment in which the motor terminal block of the present invention is applied to a capacitor split-phase induction motor (hereinafter referred to as an induction motor) mounted on a ventilating fan will be described.

[0044] first, figure 2 Indicated by single-phase AC power supply 1 (see image 3 ) is a longitudinal sectional view of the induction motor 2 as a driving source. The frame body 3 is formed by combining the openings 4a and 4b of the two pan-shaped frames 3a and 3b adjacent to each other. Bearings 6a and 6b are provided at the center of the opposing bottom walls 5a and 5b of the frames 3a and 3b, and an opening 7 is also provided at the center of the bottom wall 5b. Also mounted on the bearings 6a and 6b is a rotatable main shaft 8 mounted with one end protruding outward through the opening 7. A cylindrical rotor core 9 is fixedly attached to the central outer peripheral surface of the main shaft 8 , and the ro...

no. 2 Embodiment

[0061] A second embodiment of the present invention will be described below. In addition, since the structure of the terminal base is the same as that of the first embodiment, the description is omitted, and only the manufacturing method of the terminal base 15 will be described below.

[0062] The manufacturing process of the terminal block 15 of the present second embodiment includes the first process of connecting the electronic component connecting parts 30a and 30c electrically connecting the terminals 24a and 24a of the capacitor 24 with the connection conductors 28a and 28c; A molding die (not shown) is used for the second step of forming the terminal block main part 33 by integrally forming the capacitor 24 and the connecting conductors 28a to 28c with PBT.

[0063]

[0064] First, after arranging capacitor 24 and connecting conductors 28a to 28c inside a lower mold (not shown), spot welding terminals 24a and 24a of capacitor 24 to electronic component connecting por...

no. 3 Embodiment

[0070] see below Figure 6 A third embodiment of the present invention will be described. In addition, the description of the same parts as those in the first embodiment with the same symbols will be omitted, and only the different parts will be described below.

[0071] Figure 6 It is a configuration diagram showing the drive circuit 40 embedded in the terminal block (not shown) of the third embodiment. Figure 6 In the drive circuit 40, a fuse 41 is provided as an electronic component that cuts off the current when the stator coil 13 passes an overcurrent. The connecting conductors 42a and 42b are the connecting conductors 28b shown in the first embodiment (see Figure 4 ) is cut off in the middle. The drive circuit 40 is formed by electrically connecting the terminals 41a and 41b of the current fuse 41 by spot welding between the electronic component connection portions 43a and 43b formed in the connection conductors 42a and 42b in this way. Further, the drive circuit...

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Abstract

The invention provides a terminal base of a motor at a low cost in which quality is stabilized by simplifying a manufacturing process and reducing a manufacturing time. In a first process, a capacitor 24 and connection conductors 28a to 28c are accommodated in a molding tool for molding a terminal main body 33, and a PBT as an insulating material is injected from an injection port, thereby molding collectively the capacitor 24 and the connection conductors 28a to 28c into a unified body. As a result, the capacitor 24 and the connection conductors 28a to 28c are embedded in the PBT at the same time, and fixed to the terminal main body 33 which is formed by solidification of the PBT. In a second process, a drive circuit 27 is formed by connecting electrically the capacitor 24 and the connection conductors 28a, 28c which are fixed to the terminal main body 33. Thus the terminal 15 of a motor, in which the drive circuit 27 is embedded in the PBT, is manufactured.

Description

technical field [0001] The present invention relates to a motor terminal block in which a drive circuit of a motor is buried in an insulating material. Background technique [0002] Conventionally, there has been a capacitor-split type induction motor (hereinafter simply referred to as an induction motor) as a motor used for, for example, an exhaust fan. Figure 11 It is a vertical cross-sectional view of an induction motor 100 that uses a single-phase AC power supply (not shown) as a driving power source. [0003] This induction motor 100 is an inner rotor type, and includes a rotor 102 at the center of a frame 101 and a stator 103 at its outer periphery. The rotor 102 is composed of a main shaft 106 mounted rotatably on bearings 105 a and 105 b provided in the inner middle portions of the facing walls 104 a and 104 b of the frame 101 , and a rotor core 107 fixedly mounted on the outer periphery of the main shaft 106 . The stator 103 is constituted by winding a stator coil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K5/08H01R9/24H02K3/50H02K5/22H02K11/30H02K15/14
CPCH02K5/225H02K15/14
Inventor 太田宪男
Owner KK TOSHIBA