JPH0686350U - Mounting base for hall elements, etc. - Google Patents

Abstract

(57) [Abstract] [Purpose] To make it easier to attach small parts such as hall elements to a printed circuit board and to improve the reliability of the equipment. [Structure] A staggered mounting portion 3 is provided on a mounting base 2 to be mounted on a printed circuit board so that connecting legs of small electronic components such as hole elements are spread in a staggered manner, and small electronic components such as hall elements are mounted. The connecting legs are inserted into the staggered mounting portion 3 and attached to the mounting base 2. Therefore, the connecting legs of small electronic parts such as hall elements can be staggered to be easily attached to the printed circuit board, and the connecting circuit pattern of the printed circuit board can be easily created, resulting in cracking of the printed circuit board and deterioration of insulation. Can be resolved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting base for a hall element or the like in an electric device.

[0002]

[Prior art]

 In a DC brushless motor, a hall element is widely used to drive and control the motor.

[0003]

[Problems to be solved by the device]

 In this hall element, a plurality of connection legs for electrical connection are provided in a protruding manner on the element body, and the connection legs are inserted into a printed board and soldered for connection.

However, the element body of the hall element is small, such as a few mm square, and therefore the protrusion interval of the connecting legs is as narrow as about 1 mm pitch, which makes it difficult to mount on a printed circuit board and The connection circuit pattern was also difficult to make because it could not have a sufficient area.

Further, since there are a plurality of connecting legs and the pitch thereof is narrow as described above, the hole pitch of the insertion holes of the print substrate is narrow and the printed circuit board is easily cracked, which causes problems such as insulation deterioration. It happened.

For this reason, forming processing has been performed so as to expand the connecting legs of the hall element, but this is time-consuming and costly.

[0007]

[Means for Solving the Problems]

 The present invention has been made in view of the above points, and in order to solve the above-mentioned problems, the connecting legs for small electronic components such as hole elements are staggered on a mounting base mounted on a printed circuit board or the like. A zigzag mounting part is provided so that it can be expanded and installed, and small electronic components such as a hall element are attached to the mounting base by inserting the connecting legs into the zigzag mounting part. The purpose is to provide a mounting base for a hole element or the like.

[0008]

[Action]

 With the mounting base of the present invention, when the connecting legs of the hall element are inserted into the staggered mounting portion of the mounting base, the connecting legs can be automatically expanded in a staggered arrangement. Therefore, the connection circuit pattern of the printed circuit board of the hall element can be easily made, and the hall element can be easily attached. In addition, the printed circuit board is less likely to crack and good insulation can be maintained.

[0009]

【Example】

 Hereinafter, the present invention will be described based on embodiments. An embodiment of the present invention will be described below with reference to FIG. As shown in FIGS. 1 to 3, the mounting base 2 of the hall element 1 is formed of an engineering plastic material in a substantially semi-circular shape, and the staggered mounting portions 3 are integrally formed on the surface thereof at intervals of 60 degrees. The hole element 1 is formed so that the hole element 1 can be inserted and attached.

As shown in FIGS. 1 to 4, the staggered mounting portion 3 has a plurality of staggered leg insertion holes 5 of the connecting legs 4 of the hall element 1, and FIGS. As shown in FIG. 7, the leg insertion holes 4 are each provided with an inclined portion 6 having a predetermined slope so that the connection legs 4 of the hall element 1 inserted into the leg insertion holes 5 can be expanded to a predetermined interval.

As shown in FIGS. 2 and 3, columnar protrusions 7 are provided at regular intervals on the back surface side of the semi-circular mounting base 2 and are fixed as shown in FIGS. 8 and 9. The printed board 8 is inserted into the positioning hole 9 and welded at a predetermined position so that the mounting base 2 can be firmly attached to the printed board 8.

When the protrusion 7 of the mounting base 2 is inserted into the positioning hole 9 of the printed circuit board 8 as described above, the hole element 1 is connected to the staggered mounting portion 3 for connection as described above. The legs 4 can be inserted into predetermined insertion holes 10 of the printed circuit board 8 as shown in FIG. 9 and soldered in a known manner to be connected to a predetermined connection circuit pattern of the printed circuit board 8.

Therefore, as shown in FIG. 5, when the hole element 1 is opposed to the predetermined staggered mounting portion 3 of the mounting base 2 and the straight connecting leg 4 is inserted, FIG. 5, FIG. 6, FIG. As shown in FIG. 2, the connecting legs 4 slide along the predetermined slanted portion 6 of the staggered mounting portion 3 and enter the respective leg insertion holes 5, and the connecting legs 4 are staggered as shown in FIG. Can be expanded and installed.

Since the connecting legs 4 of the hole element 1 can be arranged in a zigzag manner in this manner, the hole elements 1 are inserted into the insertion holes 10 formed in the print substrate 8 at intervals wider than usual. The connecting leg 4 can be inserted.

Therefore, a connection circuit pattern for mounting a hole element on the printed circuit board can be easily made, and problems such as cracking of the printed circuit board and deterioration of insulation can be solved.

In the above embodiments, the hole element has been described, but the invention can be similarly applied to an IC, a microcomputer, and other small electronic components.

Further, although the printed circuit board for the motor has been described above, the same can be applied to other printed circuit boards based on the gist of the present invention.

[0018]

[Effect of device]

 As described above, according to the present invention, the legs for connecting small electronic components such as a hall element can be spread in a zigzag manner on the mounting base and can be easily mounted on the printed circuit board. The connection circuit pattern can be easily made, cracks in the printed circuit board, insulation deterioration, etc. can be eliminated, and the reliability of electrical equipment can be improved.

[Brief description of drawings]

FIG. 1 is a plan view of a mounting base according to an embodiment of the present invention,

FIG. 2 is a rear view of the above,

FIG. 3 is a side view of the above,

FIG. 4 is an enlarged plan view of a staggered mounting portion of the mounting base,

5 is a sectional view taken along the line AA of FIG.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is a sectional view taken along the line CC of FIG.

FIG. 8 is a partially omitted plan view in which the above mounting base is inserted and attached to a printed circuit board;

FIG. 9 is a side view with the same part omitted.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hall element 2 ... Mounting base 3 ... Staggered mounting part 4 ... Connection leg 5 ... Leg insertion hole 8 ... Printed circuit board

Claims (1)

[Scope of utility model registration request] 1. A small electronic device such as a hall element is provided with a staggered mounting portion for mounting the connecting legs of a small electronic component such as a hall device in a staggered manner on a mounting base to be mounted on a printed circuit board or the like. A mounting base for a hall element or the like, characterized in that the connecting legs of the component are inserted into the above-mentioned staggered mounting portion and attached to the mounting base.