JP5063658B2 - LED substrate mounting spacer and air conditioner equipped with the spacer - Google Patents

Description

  The present invention relates to a spacer structure used when fixing an infrared light emitting diode to a printed circuit board. Among them, the infrared light emitting diode is securely fixed at an arbitrary height and angle, and the infrared light emitting diode The present invention relates to an LED substrate mounting spacer that can be fixed without making a mistake in the direction.

Communication of desired information such as temperature and humidity is performed between the air conditioner and a remote controller (abbreviation for remote controller) that remotely controls the air conditioner. As such an optical communication element, an infrared light emitting diode which is generally available at a low cost is used. However, since the infrared light emitting diode has infrared directivity, it is attached with a predetermined angle or orientation with respect to the printed circuit board surface in order to cover a predetermined irradiation (transmission) range (for example, (See Patent Document 1 and Patent Document 2).
Moreover, when attaching an infrared light emitting diode to a board | substrate, the method of giving an angle and direction using a spacer is also known (for example, refer patent documents 3-5).

JP 2006-19331 A (FIGS. 1 and 3) Japanese Utility Model Publication No. 64-19855 (Fig. 1) Japanese Patent Laying-Open No. 2005-208396 (FIGS. 1 and 3) JP 2000-175180 A (FIG. 10) Japanese Patent Laid-Open No. 58-10032 (Fig. 4)

  However, in the mounting method of the light emitting diode (LED) shown in Patent Documents 1 to 5, it is necessary to bend the lead terminal of the LED, so it is necessary to carefully mount the LED, and the mounting work becomes complicated. was there. Moreover, since no means for regulating the direction of the LED is taken, there is a possibility that the polarity of the LED is attached in the wrong direction.

  In view of the above-mentioned problems of the prior art, the present invention is for mounting an LED light emitting diode capable of being attached to a printed circuit board at an arbitrary height and angle without bending the lead terminal and without making a mistake in polarity. The object is to provide a spacer.

The LED board mounting spacer according to the present invention is a spacer for mounting an infrared light emitting diode on a printed circuit board, and is provided with a lead terminal insertion port into which the lead terminal of the infrared light emitting diode is linearly inserted. A base portion, a height / angle fixing portion that fixes the infrared light emitting diode at a predetermined height and angle, and a reverse insertion prevention device that restricts the infrared light emitting diode from being inserted in a reverse direction and regulated in a normal direction. And the angle and direction of the lead terminal insertion slot coincide with the angle and direction of the height / angle fixing portion, and the infrared light emitting diode is cut out in a circular flange portion. When the infrared light emitting diode is inserted in a normal direction, the notched portion allows the infrared light emitting diode to be inserted without contacting the reverse insertion preventing protrusion, Red When inserting a light emitting diode in the reverse direction is to the flange prevents the insertion of the infrared light emitting diodes in contact with the projection for the preventing reverse insertion.

  By configuring as described above, when fixing the infrared light emitting diode to the printed circuit board, it can be fixed at an arbitrary height and angle, and without bending the lead terminal of the infrared light emitting diode, and with polarity. There is an effect that it can be attached to the printed circuit board in a normal direction without making a mistake.

It is a perspective view of the spacer which concerns on Embodiment 1 of this invention. (A) is a side view of the infrared light emitting diode, and (b) is a bottom view as seen from the lead terminal side. FIG. 3 is a perspective view showing a substrate mounting state of the first embodiment. It is a perspective view of the spacer which concerns on Embodiment 2 of this invention. FIG. 10 is a perspective view showing a substrate mounting state of the second embodiment. It is each sectional drawing of AA of FIG. 5, BB.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing the structure of a spacer according to Embodiment 1 of the present invention, FIG. 2 is a side view (a) showing an infrared light emitting diode attached to the spacer, and a bottom view as seen from the lead terminal side. b). FIG. 3 is a perspective view showing a state where an infrared light emitting diode is mounted on a printed board using the spacer of the first embodiment.
As shown in FIG. 3, the spacer according to the first embodiment shows an example in which one infrared light emitting diode 20 is mounted.
The spacer body 1 is made of an insulating synthetic resin, and includes a base portion 2 provided with lead terminal insertion ports 2a and 2b into which lead terminals 21a and 21b of the infrared light emitting diode 20 are linearly inserted, A height / angle fixing unit 3 for fixing the infrared light emitting diode 20 at a predetermined height and angle, and a reverse insertion preventing protrusion 4 for restricting the direction of the infrared light emitting diode 20 to a predetermined normal direction are provided. .

  In the height / angle fixing unit 3 described above, a height and an angle are set according to a range that one infrared light emitting diode 20 desires to transmit. In addition, the angle and direction of the lead terminal insertion ports 2a and 2b are set so that the lead terminals 21a and 21b of the infrared light emitting diode 20 can be inserted straight into the lead terminal insertion ports 2a and 2b of the base portion 2 without bending. The angle and direction of the height / angle fixing part 3 are adjusted.

  As shown in FIG. 2, the infrared light emitting diode 20 includes lead terminals 21a and 21b connected to a light emitting element (not shown), a light-transmitting mold resin portion 22 enclosing the light emitting element, and polarity determination. And a flange 24 provided with a notch 23 for use. That is, in the infrared light emitting diode 20, the direction of the anode and the cathode is determined by cutting the circular flange portion 24 into a “D-shape”.

  When the infrared light emitting diode 20 is in a normal orientation, the reverse insertion preventing protrusion 4 is inserted into the infrared light emitting diode 20 without the polarity determination notch 23 being in contact with the reverse insertion preventing protrusion 4. When the infrared light emitting diode 20 is in the opposite direction, the flange portion 24 is in contact with the reverse insertion preventing protrusion 4 to prevent the infrared light emitting diode 20 from being inserted.

  The spacer body 1 configured as described above is positioned and fixed to a printed board 10 on which a circuit (not shown) is formed as shown in FIG. Next, the infrared light emitting diode 20 is inserted into the spacer body 1 and fixed.

  The method for fixing the infrared light emitting diode 20 will be described. One lead terminal 21a of the infrared light emitting diode 20 is inserted into the lead terminal insertion port 2a of the base portion 2, and the other lead terminal 21b is inserted into the lead terminal insertion port 2b. To do. Next, the flange portion 24 is fitted into the height / angle fixing portion 3 to fix the height and angle of the infrared light emitting diode 20. At this time, since the flange portion 24 is provided with the polarity determination notch portion 23, the flange portion 24 can smoothly bend the lead terminals 21a and 21b without contacting the reverse insertion preventing projection 4. The infrared light emitting diode 20 can be fixed to the height / angle fixing part 3.

  Next, when the infrared light emitting diode 20 is to be inserted in the reverse direction, contrary to the above, one lead terminal 21a is inserted into the lead terminal insertion port 2b of the base portion 2, and the other lead terminal 21b is inserted into the lead terminal. Although each is inserted into the mouth 2a, even if it is to be inserted as it is, the collar portion 23 cannot be inserted in contact with the reverse insertion preventing protrusion 4, and the polarity of the infrared light emitting diode 20 is reversed. Is easily found.

  Therefore, by using the spacer of the present embodiment, the infrared light emitting diode 20 can be fixed at an arbitrary height and angle according to the transmission range, and the lead terminals 21a and 21b of the infrared light emitting diode 20 are used. Can be inserted linearly without bending, and the infrared light emitting diode 20 can be fixed to the printed circuit board 10 without changing the direction of the infrared light emitting diode 20, so that the problem that the infrared light emitting diode 20 does not emit light can be prevented. it can.

Embodiment 2. FIG.
Embodiment 2 shows an example in which a plurality (three in this example) of infrared light emitting diodes 20 are fixed to one spacer.
FIG. 4 is a perspective view of a spacer according to the second embodiment, and FIG. 5 is a perspective view showing a state in which an infrared light emitting diode is mounted on a printed board using the spacer of the second embodiment. FIG. 6 is a cross-sectional view taken along lines AA and BB in FIG.
The spacer main body 1 according to the second embodiment is configured such that a plurality of infrared light emitting diodes 20 can be fixed. Ports 2 a and 2 b, a height / angle fixing part 3, and a reverse insertion preventing projection 4 are provided, and these attachment parts 1 a, 1 b and 1 c are formed in one base part 2.
And the height and angle fixing | fixed part 3 of each attaching part 1a, 1b, 1c is comprised so that at least the infrared light emitting diode 20 may be fixed in a different angle direction, respectively. Thereby, the transmission range of the infrared light emitting diode 20 can be expanded as a whole.

  Further, the mounting heights of the infrared light emitting diodes 20 may be different from each other, and two or more or all of the heights may be the same. The height and angle of the height / angle fixing unit 3 are appropriately set according to the range in which the infrared light emitting diode 20 wishes to transmit a signal.

  Also in the spacer of the present embodiment, each infrared light emitting diode 20 can be fixed at the respective height and angle similarly to the first embodiment, and linearly without bending the lead terminals 21a and 21b. And can be fixed to the printed circuit board 10 in a normal orientation without making a mistake in polarity. Moreover, since the several infrared light emitting diode 20 can be set to arbitrary heights and angles, the transmission range of an infrared light emitting diode can be set efficiently.

  The spacer of the present invention can be suitably used when an infrared light emitting diode is mounted on a printed board in an air conditioner. Further, the present invention can be applied to an illumination device or a display device using an infrared light emitting diode as a light source.

  DESCRIPTION OF SYMBOLS 1 Spacer body, 1a, 1b, 1c Mounting part, 2 Base part, 2a, 2b Lead terminal insertion port, 3 Height and angle fixing part, 4 Reverse insertion prevention protrusion, 10 Printed circuit board, 20 Infrared light emitting diode, 21a , 21b Lead terminal, 22 Mold resin part, 23 Notch part for polarity determination, 24 collar part.

Claims (3)

A spacer for mounting an infrared light emitting diode on a printed circuit board,
A base portion provided with a lead terminal insertion port into which the lead terminal of the infrared light emitting diode is linearly inserted;
A height / angle fixing portion for fixing the infrared light emitting diode at a predetermined height and angle;
Protrusion for preventing reverse insertion that prevents insertion of the infrared light emitting diode in the reverse direction and regulates the normal direction,
Equipped with a,
The angle and direction of the lead terminal insertion port match the angle and direction of the height / angle fixing part,
The infrared light emitting diode is provided with a notch in a circular flange, and when the infrared light emitting diode is inserted in a normal direction, the notch is in contact with the reverse insertion preventing protrusion. When the infrared light emitting diode is allowed to be inserted and the infrared light emitting diode is inserted in the reverse direction, the flange portion comes into contact with the reverse insertion preventing protrusion to prevent the infrared light emitting diode from being inserted. A spacer for mounting an LED substrate. A plurality of mounting portions including the height / angle fixing portion, the reverse insertion preventing protrusion, and a set of the lead terminal insertion port are formed on one base portion,
2. The LED board mounting spacer according to claim 1, wherein each height and angle fixing portion is configured to fix at least the infrared light emitting diodes in different angular directions in each mounting portion. And a spacer for LED board mounting according to claim 1 or 2, the air conditioner characterized by comprising at least one infrared light emitting diodes mounted on a printed circuit board with the spacer.

Images