JP4961181B2 - Chip LED socket - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a socket for a chip LED, which can be easily mounted to equipment and, allows the chip LED to be attached and detached. <P>SOLUTION: A socket 1 for holding a chip LED 50 and electrically connecting the chip LED 50 and a cable 40 comprises a socket portion having a chip mounting portion whose upper surface opens and in which the chip LED 50 is to be inserted and a contact insertion hole which vertically penetrates at the bottom portion of the chip mounting portion, a fixing cover member 20 which is attached to the socket portion so that the opening of the chip mounting portion can be opened and closed and which is for holding the chip LED 50 inserted in the chip mounting portion so that the LED is fixed in the socket portion, and a contact 30 which projects in the chip mounting portion and which is for being in contact with the terminal of the chip LED 50 inserted in the chip mounting portion. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a chip-type LED socket that detachably holds a chip-type LED and electrically connects the LED and a lead wire.

  Although LED elements have been used as light sources, they can emit light from blue to white, and are widely used in the field of electronic devices. The conventional LED element is comprised from the light emission part and the terminal for a connection extended from this light emission part (for example, refer patent document 1). For this reason, such LED elements are attached to devices by a method of connecting a lead wire to a terminal or a method of soldering to a substrate. However, when such an LED element is used for illumination of a device such as a gaming machine, more complicated mounting is required. Therefore, in order to realize that a single LED element is mounted in the device, a chip-type LED having the same shape as an IC chip has been developed. This chip-type LED has a terminal provided on the housing, and is attached by soldering, for example, by surface mounting.

JP 2006-114791 A

  However, in recent years, electronic devices that do not use lead have been developed for environmental considerations, and a mounting method that does not use solder is required. In addition, in order to cope with complicated mounting on a device, there is a problem that it is desired that the device can be freely arranged in the device and can be easily attached instead of being soldered to the substrate. Furthermore, in the case of a device having a relatively short life cycle such as a gaming machine, if the chip-type LED is attached by soldering, it becomes difficult to remove the chip-type LED when the device is discarded, and it cannot be recycled. There are also challenges.

  This invention is made | formed in view of such a subject, and it aims at providing the socket for chip-type LED which can be easily attached with respect to an apparatus, and can attach or detach chip-type LED.

In order to solve the above-described problems, a chip-type LED socket according to the present invention includes a housing having an upper surface opened, an LED element disposed in the housing, a flat lens attached to the opening, A socket for holding a chip-type LED comprising a plurality of terminals attached to the lower part, and having a configuration for electrically connecting the chip-type LED and a cable when the chip-type LED is held It is. The socket for chip type LED has an upper surface opened, a chip mounting portion into which the chip type LED is inserted, a socket portion having a contact insertion hole penetrating vertically at the bottom of the chip mounting portion, and a socket portion A cable connecting portion having a concave contact mounting groove that is formed to extend downward from the lower surface of the substrate and that opens to the front surface and extends in the vertical direction and communicates with the contact insertion hole, and a socket portion that can open and close the opening of the chip mounting portion. A fixed cover member that fixes and holds the chip-type LED inserted into the chip mounting portion in the socket portion, a base portion extending in the front-rear direction, and a base protruding from the base portion, and the cable is connected by pressure contact When the base is pressed into the contact mounting groove and attached. Composed of a contact having a contact portion contacting projecting into the chip mounting portion, a terminal of the inserted chip type LED in chip mounting portion taking the contact insertion holes.

Incidentally, the chip in the chip-type LED socket according to the present invention, the upper surface of the fixed cover member has an open window, the window is, the chip-type LED is inserted into the chip mounting part, the fixed cover member It is preferable that the flat LED of the chip type LED is exposed upward when the type LED is fixedly held.

  When the chip-type LED socket according to the present invention is configured as described above, the contact and the cable are connected by pressure contact, and the contact and the chip-type LED are connected by contact. Therefore, it is necessary to perform soldering. There is no lead and it can be set as the structure which does not use lead. Further, by eliminating the need for soldering the chip-type LED, the chip-type LED can be prevented from being deteriorated by heat without being placed under a high temperature condition due to reflow heat. Furthermore, by using such a connection method, the operation of connecting the socket and the cable and the operation of attaching the chip type LED to the socket can be facilitated, and the number of assembling steps can be reduced.

  Moreover, since this chip-type LED socket is configured so that the chip-type LED can be attached and detached, an LED element (chip-type LED) having a relatively long life can be easily recycled.

  In addition, the reliability of the connection between the contact portion of the contact and the terminal of the chip LED can be improved by providing a window on the upper surface of the fixed cover member and holding the chip LED from above by the cover member.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, a chip type LED will be described. As shown in FIG. 8, the chip-type LED 50 has a rectangular parallelepiped housing 51 having an upper surface opened and an LED element 52 disposed therein, and a flat lens 53 is attached to the opening. A plurality of (four in this embodiment) terminals 54 are attached to the rear surface of the casing 51, and the terminals 54 are electrically connected to the LED element 52.

  Now, a socket in which such a chip-type LED can be attached and detached will be described using two examples.

  First, as a first embodiment, a socket 1 that detachably holds a chip-type LED 50 shown in FIG. 8 will be described with reference to FIGS. In the first embodiment, the direction of the arrow F shown in FIG. The socket 1 includes a socket body 10, a fixed cover member 20, and a plurality of (four in this embodiment) contacts 30.

  The socket body 10 is formed of an insulating resin or the like, and includes a rectangular parallelepiped socket portion 11 and a rectangular parallelepiped cable connection portion 12. The rear part of the socket part 11 and the upper part of the cable connection part 12 are connected so that the cable connection part 12 extends downward from the bottom part of the socket part 11 and is integrally formed in an L shape in a side view in the left-right direction. Is formed. On the upper part of the socket part 11, there is provided a chip mounting part 13 which is open on the upper surface and formed in a concave shape. A plurality of (four in this embodiment) contact insertion holes 14 extending in a slot shape in the front-rear direction and penetrating in the vertical direction are arranged in parallel in the left-right direction on the bottom 13 b of the chip mounting portion 13. Is formed. The top opening 13a of the chip mounting portion 13 is formed in substantially the same shape as the chip LED 50 in plan view, and the chip LED 50 is attached to and detached from the chip mounting portion 13 as shown in FIG. It is configured to be possible. Note that the height from the bottom surface 13b of the chip mounting portion 13 to the top surface opening portion 13a is formed to be approximately the same as the height of the housing 51 of the chip-type LED 50.

  On the other hand, a plurality of (four in this embodiment) contact mounting grooves 15 that are formed in a concave shape that opens in the front side surface and extends in the vertical direction are formed in the front portion of the cable connection portion 12 constituting the socket body 10. They are arranged in parallel in the left-right direction. The contact mounting groove 15 penetrates vertically, and the upper end portion is connected to the rear end portion of the contact insertion hole 14 of the socket portion 11, and the contact insertion hole 14 and the contact mounting groove 15 communicate with each other.

  When the fixed cover member 20 is attached to the socket body 10, the upper cover portion 21 covering the upper opening portion 13 a of the socket portion 11 and the left and right side portions of the upper surface portion 21 are bent downward and extended. 11 and left and right side surface portions 22 and 22 and a locking portion 23 which is bent and extended downward from a substantially central portion of the front end of the upper surface portion 21 and whose distal end portion is folded back. For example, it is formed by bending a metal plate. Mounting holes 22a are formed in the rear portions of the left and right side surface portions 22 and 22, and mounting protrusion portions projecting outward from the rear portions of the left and right side surfaces of the socket portion 11 in the mounting holes 22a and 22a. 11 a and 11 a are inserted, and the fixed cover member 20 is attached to the socket body 10. Therefore, the fixed cover member 20 can swing in the vertical direction with respect to the socket portion 11, and is configured to be able to open and close the upper surface opening 13a. In addition, the upper surface portion 21 is formed with a window 21a that is cut in a rectangular shape from the rear end portion toward the front. When the chip-type LED 50 is attached to the socket body 10, the upper surface portion 21 is flat in the window 21a. The lens 53 is configured to be positioned.

  The contact 30 extends in the vertical direction, and has a base portion 31 that has a width in the left-right direction that is substantially the same as the width of the contact mounting groove 15, and a first and a second bent portion extending forward from the upper and lower ends of the base portion 31. The second pressure contact portions 32 and 33, the arm portion 34 that is bent upward from the side portion of the second pressure contact portion 33 and extends upward and forward, and the contact portion 35 that protrudes upward from the front end portion of the arm portion 34. Is done. Here, the first press contact portion 32 is formed with first and second press contact blades 32a and 32b extending side by side in the left-right direction. The second press contact portion 33 is also formed with third and fourth press contact blades 33a and 33b extending side by side in the left-right direction. And between the 1st and 2nd press contact blades 32a and 32b and between the 3rd and 4th press contact blades 33a and 33b, slots 32c and 33c which open ahead and extend in the direction of order are formed, respectively. . The contact 30 is attached by press-fitting the base portion 31 into the contact attachment groove 15 formed in the cable connection portion 12. At this time, the arm portion 32 extends from the contact mounting groove 15 into the contact insertion hole 14 of the socket portion 11, and the contact portion 35 protrudes from below into the space formed by the chip mounting portion 13. At this time, as shown in FIG. 3A, for example, the contact portions 35 are arranged side by side at a substantially central portion in the front-rear direction of the chip mounting portion 13.

  A cable 40 is connected to each of the plurality of contacts 30. As shown in FIG. 3B, the cable 40 includes a conductive wire 40a and a covering 40b that covers the conductive wire 40a. When the cable 40 is disposed along the contact mounting groove 15 and pushed into the contact mounting groove 15, the first and second press contact blades constituting the first and second press contact portions 32 and 33 are formed. The sheath 40b is cut by the 32a, 32b and the third and fourth press contact blades 33a, 33b, the lead wire 40a is press-fitted into the slots 32c, 33c, and the first and second press contact portions 32, 33 and the lead wire 40a are electrically connected. Connected to. At this time, the cable 40 can be held by the contact mounting groove 15 by making the width in the left-right direction of the contact mounting groove 15 and the thickness of the cable 40 substantially the same size.

  When the chip-type LED 50 is attached to the socket 1 configured as described above, the fixed cover member 20 is swung upward with respect to the socket body 10 as shown in FIG. 13, the chip-type LED 50 is inserted so that the terminal 54 is positioned on the bottom surface. At this time, each of the terminals 54 formed on the bottom surface and each of the contact portions 35 of the contact 30 are in contact with each other, and the cable 40 and the chip-type LED 50 are electrically connected via the contact 30. As shown in FIG. 1A, when the fixed cover member 20 is swung downward and the upper surface of the socket part 11 is covered with the upper surface part 21, the locking parts 23 are the front and bottom front end parts of the socket part 11. Therefore, the fixed cover member 20 is fixedly held to the socket portion 11 by the locking portion 23. As described above, since the height from the bottom surface 13b of the chip mounting portion 13 to the top surface opening portion 13a is formed to be approximately the same as the height of the housing 51 of the chip type LED 50, the chip type LED 50 is fixed to the fixed cover. It is pressed downward by the upper surface portion 21 of the member 20, so that the terminal 54 and the contact portion 35 are reliably in contact with each other, and the chip-type LED 50 is fixedly held on the socket body 10 by the fixed cover member 50. In addition, the reliability with respect to the static contact with the terminal 54 can be improved by projecting the contact portion 35 into the space surrounded by the chip mounting portion 13.

  When the socket 1 according to the first embodiment is configured as described above, the contact 30 and the cable 40 are connected by pressure contact, and the contact 30 and the chip-type LED 50 are connected by contact. There is no need to carry out the process, and lead can be used. In addition, when the chip type LED 50 is surface-mounted, reflow heat is applied to the chip type LED 50 when soldering by reflow. However, by using the socket 1, the chip type LED 50 is not placed under such a high temperature condition. The deterioration of the chip-type LED 50 due to heat can be prevented. Furthermore, by using such a connection method, the connection work between the socket 1 and the cable 40 and the attachment work of the chip-type LED 50 to the socket 1 can be facilitated, and the number of assembling steps can be reduced.

  The chip-type LED 50 attached to the socket 1 can be easily removed by pulling the locking portion 23 forward to release the engagement with the socket portion 11 and swinging the fixed cover member 20 upward. Therefore, the LED element (chip-type LED 50) having a relatively long life can be easily recycled.

  In the above embodiment, the cable connecting portion 12 is arranged to extend downward with respect to the socket portion 11, and the example in which the cable 40 is configured to press-contact with the contact 30 so as to extend downward has been described. The present invention is not limited to this embodiment. For example, the cable connecting portion 12 is formed so as to extend in the front-rear direction with respect to the socket portion 11, and the contact 30 is formed so that the cable 40 extends forward or backward. It is also possible to adopt a configuration in which it is attached in pressure contact.

  Next, as a second embodiment, a socket 100 to which a chip type LED 150 having a shape as shown in FIG. 9 can be attached will be described with reference to FIGS. In the second embodiment, the direction of the arrow F shown in FIG. This chip-type LED 150 has a rectangular parallelepiped shape in which the upper surface is open and the LED elements 152 (three LED elements in this embodiment) are arranged inside, similar to the chip-type LED 50 shown in FIG. The housing 151 has a flat lens 153 attached to the opening, and a plurality (six in this embodiment) of terminals 154 are attached from the bottom surface of the housing 151 along the side surface. Is electrically connected to the LED element 152.

  The socket 100 includes a socket body 110, a fixed cover member 120, and a plurality of (six in this embodiment) contacts 130. The socket body 110 is formed of an insulating resin or the like, and has a rectangular parallelepiped socket portion 111, and a cable connection portion 112 having a rectangular parallelepiped shape and extending downwardly at a substantially central portion in the front-rear direction of the socket portion 111. The flange portions 116 and 116 extending in the left-right direction from the left and right end portions of the socket portion 111 are integrally formed in a T shape in a side view in the left-right direction.

  At the upper part of the socket part 111, a chip attachment part 113 is provided that is open on the upper surface and formed in a concave shape. In addition, a plurality of (three in this embodiment) contact insertion holes 114 extending in a slot shape in the front-rear direction and penetrating in the vertical direction are arranged in parallel in the left-right direction at the bottom 113b of the chip mounting portion 113. Is formed. In this socket 100 as well, the top opening 113a of the chip mounting portion 113 has substantially the same shape as the chip LED 150 in plan view, and the height from the opening 113a to the bottom 113b is the same as that of the chip LED 150. The casing 151 has substantially the same size as the height of the casing 151.

  In the front portion of the cable connection portion 112, a plurality of (six in this embodiment) contact mounting grooves 115 that are open in the front side surface and extend in the vertical direction are arranged in parallel in the left-right direction. Is provided. The contact mounting grooves 115 penetrate vertically and communicate with contact insertion holes 114 formed in the socket portion 111 in pairs. The left and right flange portions 116 and 116 are formed with mounting holes 116a and 116a penetrating in the vertical direction, respectively.

  When the fixed cover member 120 is attached to the socket body 110, the upper cover 121 that covers the upper opening 113a of the socket 111 and the left and right sides of the upper cover 121 are bent downward and extended. For example, the metal plate is formed by bending a metal plate. A circular attachment hole 122a is formed at one end of each of the left and right side surfaces 122, 122, and a rectangular locking hole 122b is formed at the other end. The fixed cover member 120 is attached to the attachment holes 122a and 122a by inserting attachment protrusions 111a and 111a formed on the front and rear side surfaces of the socket portion 111. For this reason, the fixed cover member 120 is swingable in the vertical direction with respect to the socket body 110, and is configured to be able to open and close the upper surface opening 113a. Note that a rectangular window 121a is formed on the upper surface portion 121, and the flat lens 153 is positioned in the window 121a when the chip-type LED 150 is attached to the socket body 110. Yes.

  The contact 130 extends in the vertical direction, and a base 131 having a horizontal width that is substantially the same as the width of the contact mounting groove 115, and a first and a first bent extending from the upper and lower ends of the base 131 forward. Second pressure contact portions 132 and 133, an arm portion 134 that is bent upward from a side portion of the second pressure contact portion 133 and extends upward and forward or rearward, and a contact portion 135 that protrudes upward from the tip portion of the arm portion 134 Consists of The first and second press contact portions 132 and 133 also have press contact blades arranged on the left and right as in the first embodiment and slots formed between these press contact blades (this embodiment). (Not shown). The contact 130 is attached by press-fitting the base portion 131 into a contact attachment groove 115 formed in the cable connection portion 112. At this time, the arm part 134 extends from the contact attachment groove 115 into the contact insertion hole 114 of the socket part 111, and the contact part 135 protrudes from below into the space formed by the chip attachment part 113. At this time, as shown in FIG. 5A, for example, the contact portions 135 are arranged alternately on the front and rear end sides of the contact insertion hole 111. Also in the second embodiment, the cable 140 is connected to the press contact portions 132 and 133 of the plurality of contacts 130 by press contact, but the connection method is the same as in the first embodiment.

  When the chip-type LED 150 is attached to the socket 100 configured as described above, the fixed cover member 120 is swung upward with respect to the socket body 110, and the terminal 154 is positioned below the chip attachment portion 113. The chip type LED 150 is inserted as described above. At this time, each of the terminals 154 comes into contact with each of the contact portions 135 of the contact 130, and the cable 140 and the chip-type LED 150 are electrically connected via the contact 130. When the fixed cover member 120 is swung downward to cover the upper surface of the socket part 111 with the upper surface part 121, the locking hole 121 b engages with the locking protrusions 111 b formed on the front and rear side surfaces of the socket part 111. The fixed cover member 120 is fixedly held to the socket portion 111. Similarly to the first embodiment, the chip-type LED 150 is pressed downward by the upper surface portion 121 of the fixed cover member 120, so that the terminal 154 and the contact portion 135 are reliably in contact with each other. Is fixedly held by the socket body 110. In addition, the reliability with respect to the static contact with the terminal 154 can be improved by projecting the contact portion 135 into the space surrounded by the chip mounting portion 114.

  When the socket 100 according to the second embodiment is configured as described above, the same effects as those of the first embodiment can be obtained. In the second embodiment, it is also possible to adopt a configuration in which the cable 140 is attached to the contact 130 so as to extend in the front-rear direction. Further, as shown in the socket 100 according to the second embodiment, by providing a flange portion 116 on the side portion of the socket body 110, for example, a screw or the like is inserted into the mounting hole 116a formed in the flange portion 116. By fastening to the device, the socket 100 can be freely fixed in the device.

It is a perspective view of the socket concerning the 1st example, (a) shows the state where chip type LED was attached, and (b) shows the state where chip type LED was removed. It is the perspective view which looked at the socket which concerns on the said 1st Example from the bottom face side. It is a figure which shows the socket which concerns on the said 1st Example, Comprising: (a) is a top view, (b) is a bottom view. It is IV-IV sectional drawing of FIG. It is a top view which shows the socket which concerns on 2nd Example, Comprising: (a) is a socket main body, (b) is a fixed cover member. It is VI-VI sectional drawing of Fig.5 (a). It is the side view of the socket which concerns on the said 2nd Example, Comprising: (a) is the side view seen from back, (b) is the side view seen from the left-right direction. It is a perspective view of chip type LED attached to the socket concerning the above-mentioned 1st example, and (a) is a figure seen from the upper part, (b) is a figure seen from the lower part. It is a perspective view of chip type LED attached to the socket which concerns on the said 2nd Example.

Explanation of symbols

1,100 Socket 11, 111 Socket part 12, 112 Cable connection part 13, 113 Tip attachment part 14, 114 Contact insertion hole 15, 115 Contact attachment groove 20, 120 Fixed cover member 20a, 120a Window 30, 130 Contact 31, 131 Base part 32,132 First pressure contact part 33,133 Second pressure contact part 35,135 Contact part 40,140 Cable 50,150 Chip-type LED
51, 151 Housing 52, 152 LED element 53, 153 Flat lens 54, 154 Terminal

Claims (2)

Holds a chip-type LED that includes a housing having an upper surface opened, an LED element disposed in the housing, a flat lens attached to the opening, and a plurality of terminals attached to a lower portion of the housing. a chip-type LED socket for, in the chip-type LED and the chip-type LED socket having a structure for electrically connecting the cable when holding the chip-type LED,
A socket portion having a top opening, a chip attachment portion into which the chip-type LED is inserted, and a contact insertion hole penetrating vertically at the bottom of the chip attachment portion;
A cable connecting portion that is formed to extend downward from the lower surface of the socket portion, has a concave contact mounting groove that opens to the front surface, extends in the vertical direction, and communicates with the contact insertion hole;
A fixed cover member that is attached to the socket part so that the opening of the chip attachment part can be opened and closed, and that holds the chip-type LED inserted into the chip attachment part in the socket part, and
A base portion extending in the front-rear direction, formed so as to protrude forward from the base portion, and a pressure contact portion to which the cable is connected by pressure contact, and extends from the pressure contact portion, and the base portion is press-fitted and attached to the contact mounting groove For a chip type LED comprising a contact having a contact part protruding through the contact insertion hole into the chip attachment part and contacting the terminal of the chip LED inserted into the chip attachment part socket. On the upper surface of the fixed cover member, an open window is provided,
The window, the chip-type LED is inserted into the tip mounting portion, when said chip type LED is fixed and held by the fixed cover member, to expose the flat lens of the chip-type LED upward The socket for chip type LEDs according to claim 1 configured.

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