Coil component and manufacturing method of coil component
A technology of coil components and winding parts is applied in the field of manufacturing coil components and coil components to eliminate the possibility of aerial wiring and prevent wire breakage.
Active Publication Date: 2019-02-12
SUMIDA CORP
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0011] In addition, in the conventional art described above, a part of the end portions 121a, 121b between the bobbin 102 and the terminals 126, 127 is an aerial wiring that does not follow the outer shape of the coil component.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0043] Hereinafter, a coil component according to an embodiment of the present invention will be described with reference to the drawings. The coil component of this embodiment is applied to a solenoid valve, for example.
[0044] A solenoid valve is used, for example, as a circuit element of various devices mounted on an automobile, and is sometimes covered for waterproofing and dustproofing. In such a solenoid valve, the conductive wire receives a large stress due to the difference in thermal expansion coefficient between the molding resin and the conductive wire. In particular, when miniaturization of the coil component is strongly demanded, if the conductive wire is used as an aerial wiring, there is a high possibility that the conductive wire will be disconnected.
[0045] Therefore, in the coil component of the present embodiment, the lead wire is not directly pulled from the terminal electrode to the coil portion. Specifically, the conductive wire from the terminal el...
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
Login to View More Abstract
The present invention provides a coil component and a method for manufacturing the coil component that can prevent occurrence of wire breakage in a molding process or the like while avoiding the occurrence of air wiring when a lead coil is guided from a terminal electrode to a winding portion. A coil component (1) such as a solenoid valve is provided with: a winding portion (20) formed by winding a conductive wire (4); and terminal electrodes (3A, 3B) having connection terminals ( 16A, 16B). A locking piece (15A) is provided on the side of the winding portion of the connection terminal (16A) of the terminal electrode (3A), and the starting end of the conductive wire (4) is locked by the locking piece (15A). The conductive wire (4) is pulled up in a direction opposite to the direction in which the winding portion (20) is arranged, and is passed through the connection terminal (16A) to be electrically connected to the connection terminal (16A), and is further pulled toward the connection terminal (16A). Pull up in the direction opposite to the arrangement direction of the winding portion (20).
Description
technical field [0001] The present invention relates to a coil component which is used for a solenoid valve, an electromagnetic actuator, etc., and in particular to a coil component which is fully molded and sealed, and a method of manufacturing the coil component. Background technique [0002] For example, coil components installed in the engine room of a motor vehicle or sometimes directly exposed to the external environment, such as ABS coils, valves of air conditioners, or valves of washing machine devices, are strongly subjected to temperature, humidity, shock, and vibration. , or dust and other external environment. [0003] In this way, it is desired that the coil components used in harsh environments affected by various external environments have waterproof and dustproof functions. Accordingly, an overmolding method of covering the coil component with a molding resin is adopted. [0004] However, when the coil component is repeatedly subjected to thermal load, the ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01F5/04H01F5/02H01F5/00H01F41/10F16K31/06
CPCF16K31/0675H01F5/00H01F5/02H01F5/04H01F41/10H01F2007/062H01F5/06H01R4/023
Inventor 渡边竜二
Owner SUMIDA CORP