Unlock instant, AI-driven research and patent intelligence for your innovation.

Position detector apparatus

A technology for detectors and magnetic detection components, which is applied to measuring devices, electrical devices, instruments, etc., and can solve problems such as the deterioration of the position detection accuracy of lead frame position detector devices and the corrosion of Hall ICs

Active Publication Date: 2015-03-18
DENSO CORP
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, when the pre-assembled module is molded by injection molding for the first time, the position of the Hall IC may be shifted from a desired position inside the metal mold, and such shifting of the Hall IC may result in contact due to the shifted Hall IC. Or exposure of part of the Hall IC beyond the resin wall of the first pre-assembled module due to proximity to the inner wall of the metal mold
In the worst case, water or liquid intruding into the inside of the primary pre-assembled module from the exposed portion of the Hall IC may corrode the lead frame and / or terminals of the Hall IC and may degrade the position detection accuracy of the position detector device

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Position detector apparatus
  • Position detector apparatus
  • Position detector apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0056] refer to Figure 1 to Figure 7 A position detector device of a first embodiment of the present invention is described. The position detector device 1 is attached to a housing cover 11 of an electronically controlled throttle valve 10 which controls the volume of air entering a cylinder of a vehicle engine.

[0057] The external configuration of the electronically controlled throttle valve 10 is described. Such as figure 1 As shown, an intake passage 13 for introducing air into the engine is formed in the housing 12 of the electronically controlled throttle device 10 .

[0058] A throttle valve 14 formed in a substantially flat circular shape is formed in the intake passage 13 . Both ends of a valve shaft 15 to which the throttle valve 14 is attached are pivotally supported by the housing 12 . Thus, the throttle valve 14 is pivotable about the center of the valve shaft 15 serving as the rotation axis.

[0059] A motor 16 is attached to one end of the valve shaft 15 ...

no. 2 example

[0114] A second embodiment of the invention is referred to Figure 8 to describe. In each of the following embodiments, the same components have the same reference numerals as those of the first embodiment, and descriptions about the same components are omitted.

[0115] According to the second embodiment, the resin component 50 of the position detector device 1 has two or more slope portions 54 and 55 symmetrically on both sides of the central axis O of the detection element 30 . The slope portion 54 and the slope portion 55 have the same size and the same shape.

[0116] According to the second embodiment, in addition to the same effects as those of the first embodiment described above, the following effects are achieved.

[0117] In the second embodiment, the slope portion may be positioned farther to the right and left from the center axis O of the detection element 30 than that of the first embodiment. Thus, when the resin component 50 is injection-molded, the molten r...

no. 3 example

[0119] refer to Figure 9 and Figure 10 A third embodiment of the present invention is described.

[0120] According to the third embodiment, the resin member 50 of the position detector device 1 does not have the inclined portion. Instead, the resin member 50 has an extension portion 56 extending from the thick molded portion 51 toward the thin molded portion 52 . The connection C between the extension 56 and the thin profile 52 is positioned above the detection element 30 . Therefore, in the third embodiment, both the thin molded portion 52 and the extension portion 56 thicker than the thin molded portion 52 are positioned above the one surface 31 of the detection element 30 . Also, the extensions 56 are symmetrically formed on both sides of the central axis O of the detection element 30 .

[0121] Also in the third embodiment, the thickness E of the thin molded portion 52 positioned on the opposite side of the wiring of the detection element 30 is thinner than the thic...

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

A position detector apparatus (1) includes a detector part (30.130), wiring (40), a resin part (50), a resin body (160), a terminal (150), and a lead frame (140). The resin part has a thickness (A,D) at a wiring side portion of the detector part that is greater than a thickness (B,E) on a side opposite to the wiring side portion. Therefore, when injection-molding the resin part, due to a thickness change of the resin part, the detector part is pressed against a metal mold and a position of the detecting part (30) is fixed. Further, the resin body (160) has a thick-resin portion (162) and a thin-resin portion (161). The thickness of the thin-resin portion allows a predetermined amount of dislocation of the detector part. Therefore, if the detector part (130) is exposed, water is prevented from intruding the lead frame and the terminal.

Description

technical field [0001] The present invention generally relates to a position detector device, a mold for manufacturing the position detector device, and a method of manufacturing the position sensor device using the mold. Background technique [0002] Conventionally, a position detector device may be used to detect a rotation angle of a throttle valve of an electronically controlled throttle device, a rotation angle of an accelerator pedal in an accelerator pedal module, or a stroke amount of a clutch actuator. [0003] For example, Patent Document 1 (ie, Japanese Patent No. 4367473) discloses an electronically controlled throttle valve device using a position detector device for detecting a rotation angle of the throttle valve. The position detector device has dual Hall ICs which together serve as detector elements for detecting the magnetic field of a magnet provided on the end of the rotary shaft of the throttle valve. The position detector used in such an electronically...

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): G01B7/00G01B7/30
Inventor 泷口智之胡安德宇枯宁河野祯之水沼赳人
Owner DENSO CORP