JP2007214214A - Light emitting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting device which can mount and connect an LED on a circuit board easily and rapidly without using soldering, can improve the working capacity, and can also improve contact between lead wires of the LED and interconnections of the circuit board than ever before. <P>SOLUTION: The light emitting device comprises the main body of a socket which can be mounted and demounted in an insertion hole of a circuit board having an interconnection light emitting element having polarized terminals which is integrally formed with the main body of the socket; leg-like elastic portion which is arranged below the main body of the socket and includes a pair of legs and a curved portion for connecting the pair of legs, and has a first abutting face to be abutted against the rear face of the circuit board via a predetermined insertion hole of the circuit board; and an upper elastic portion which is formed in an upper part of the main body of the socket and has a second abutting face to be abutted against the top face of the circuit board while making an elastic deformation. By abutting the terminals of the light emitting element against the interconnection portion of the circuit board by restoring force of the leg-like elastic portion and the upper elastic portion due to elastic deformation, the light emitting element is mounted on the circuit board. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a light emitting device having a polarity, and more particularly, to a light emitting device that emits light by attaching a light emitting diode (LED) to a circuit board.

As a conventional light emitting device, for example, when a socket is inserted into an insertion hole of a circuit board, the first elastic member and the second elastic member are elastically deformed, and the socket body is held on the circuit board by a restoring force generated by the elastic deformation. There is something. In this holding, the conducting wire led out from the light bulb is in direct contact with the conductive pattern on the circuit board. According to this, it is possible to easily and quickly attach and connect the light bulb to the substrate without requiring soldering work, thereby improving the work efficiency, and thermal influence or damage to the light bulb and parts. Can be eliminated (for example, Patent Document 1).
JP-A-7-335348

  However, according to Patent Document 1, when applying to an LED instead of a light bulb, since the LED has polarity, the polarity is often mistaken in the mounting operation, and it is mounted on the circuit board with high productivity. Is difficult. Further, in an LED having a low operating voltage, it is necessary to more reliably perform the contact property between the LED lead wire and the circuit board wiring than ever before.

  Accordingly, an object of the present invention is to easily and quickly mount and connect an LED to a circuit board without requiring a soldering operation, thereby improving work efficiency and improving the lead wire of the LED. An object of the present invention is to provide a light emitting device capable of more reliably making contact with wiring on a circuit board than ever before.

  In order to achieve the above object, the present invention provides a socket body that can be attached to and detached from an insertion hole of a circuit board having a wiring portion, a light emitting element that is provided integrally with the socket body and that has a terminal having polarity, and the socket. A leg provided at a lower portion of the main body, having a pair of leg portions and a curved portion connecting the leg portions, and having a first abutting surface that abuts the back surface of the circuit board through a predetermined insertion hole of the circuit board. A leg-like elastic part and an upper elastic part provided on an upper part of the socket body and having a second abutting surface that abuts against the upper surface of the circuit board while being elastically deformed. The light emitting device is mounted on the circuit board by bringing the terminal of the light emitting element into contact with the wiring portion of the circuit board by a restoring force due to elastic deformation of the circuit board.

  In order to achieve the above object, the present invention provides a socket body that can be attached to and detached from an insertion hole of a circuit board having a wiring portion, a light emitting device that is incorporated in the socket body and has a terminal having polarity, and the socket. A leg provided at a lower portion of the main body, having a pair of leg portions and a curved portion connecting the leg portions, and having a first abutting surface that abuts the back surface of the circuit board through a predetermined insertion hole of the circuit board. And mounting on the circuit board by bringing the terminal of the light emitting element into contact with the wiring part of the circuit board by a restoring force due to elastic deformation of the leg-like elastic part. A light emitting device is provided.

In order to achieve the above object, the present invention provides a socket body that can be attached to and detached from an insertion hole of a circuit board having a wiring portion, a light emitting device that is incorporated in the socket body and has a terminal having polarity, and the socket. A bending elastic portion provided at a lower portion of the main body, protruding from one end of the socket main body, and formed so as to reach the other end of the socket main body through a bending portion, and by a restoring force due to elastic deformation of the bending elastic portion The light emitting device is mounted on the circuit board by bringing the terminal of the light emitting element into contact with the wiring portion of the circuit board.

  In order to achieve the above object, the present invention provides a socket body that can be attached to and detached from an insertion hole of a circuit board having a wiring portion, a light emitting device that is incorporated in the socket body and has a terminal having polarity, and the socket. A stabilizer provided in the main body for electrically connecting the terminal of the light emitting element and the wiring portion of the circuit board; and provided at a lower portion of the socket main body, protruding from one end of the socket main body, curved A curved elastic portion formed so as to reach the other end of the socket main body through a portion, and the terminal of the light emitting element is connected to the circuit via the stabilizer plate by a restoring force due to elastic deformation of the curved elastic portion. Provided is a light emitting device which is mounted on the circuit board in contact with the wiring portion of the board.

  According to the embodiment of the present invention, for example, it is possible to easily and quickly mount and connect an LED to a circuit board without requiring a soldering operation and without making a mistake in polarity. It is possible to provide a light-emitting device that can be improved and can more reliably perform contact between the LED lead wire and the circuit board wiring than ever before.

(First embodiment)
(Configuration of the first embodiment)
FIG. 1 is a perspective view showing the first embodiment. The light emitting device 1 includes a socket body 2 and an LED 3.

  The socket body 2 is configured to include the LED 3, the upper elastic portion 10, and the leg-shaped elastic portion 20. Of these portions constituting the socket body 2, the upper elastic portion 10 and the leg-shaped elastic portion 20 are the socket body 2. May be formed integrally with each other, or may be formed integrally as a separate body. In the present embodiment, the following description will be made assuming that the upper elastic portion 10 and the leg-like elastic portion 20 are formed integrally with the socket body 2.

  When the socket body 2 is made of resin and formed integrally with the upper elastic portion 10, the leg-like elastic portion 20, etc., the socket main body 2 has excellent elastic restoring force, light resistance, high heat resistance, chemical resistance, and water resistance. A resin having decomposability and the like is preferable, and PES, PC, PFS, and the like are preferable. In particular, polyethersulfone (PES) is preferable.

  Here, the leg-shaped elastic part 20 is composed of a first leg part 20a, a second leg part 20b, and an arch part 20c. The width of the first leg part 20a is W1, and the width of the second leg part 20b is W2. And have different leg widths.

  The circuit board 50 includes a mounting hole 51 that is an insertion hole for mounting the light emitting device 1 and a wiring pattern. On the upper surface of the circuit board 50, the anode wiring in a predetermined pattern is arranged at a position where the anode terminal 3b and the cathode terminal 3c, which are LED terminals of the plurality of light emitting devices 1 arranged at predetermined positions according to the illumination or display target, can contact. A pattern 52a and a cathode wiring pattern 52b are formed. The anode wiring pattern 52a and the cathode wiring pattern 52b are distinguished so that a predetermined voltage can be applied to the anode terminal 3b and the cathode terminal 3c of the LED 3 having polarity, and are connected to a power supply unit (not shown).

  In the present embodiment, since the LED 3 includes RGB light emitting elements of RGB three colors, the anode terminal 3b and the cathode terminal 3c each have three pairs of terminals, and the anode wiring pattern 52a and the cathode wiring pattern 52b are also included. Correspondingly, it is composed of three pairs of wiring patterns.

  The mounting hole 51 is formed so that the hole shape is asymmetric so that the anode terminal 3b and the cathode terminal 3c can be mounted with the correct polarity, and the light emitting device 1 can be mounted only in a certain method. Is formed. Specifically, as shown in FIG. 1, the hole width of the attachment hole 51 is formed in different shapes at both ends. That is, corresponding to the width W1 of the first leg portion 20a and the width W2 of the second leg portion 20b, hole widths W3 and W4 are formed, W3 is slightly larger than W1, and W4 is larger than W2. Is also formed slightly larger. Since W2 is set to be larger than W3, the light emitting device 1 can be mounted only in one direction of the mounting hole 51.

  The LED 3 includes a light emitting unit 3a, an anode terminal 3b which is a terminal having polarity, and a cathode terminal 3c. Since the LED 3 has polarity and needs to be mounted in a predetermined direction at the time of mounting, the anode terminal 3b and the cathode terminal 3c are formed so as to be distinguished from each other. In the present embodiment, since the LED 3 is formed integrally with the socket body 2 in the manufacturing process, the polarity is identified by the difference between the width of the first leg portion 20a and the width of the second leg portion 20b. . When the light emitting unit 3a is used as a lighting device, the light emitting unit 3a has an oscillation wavelength mainly in the visible light region, and is driven by a predetermined applied voltage from the anode terminal 3b and the cathode terminal 3c, thereby having a predetermined emission spectrum. Emits light. In the present embodiment, RGB three-color light emitting units 3a are provided. A laser diode instead of the LED 3 can be similarly applied to the present invention.

  FIGS. 2A and 2B are views showing the AA cross section and the BB cross section of FIG. 1, and the upper elastic portion 10 and leg-like elasticity in a state where the light emitting device 1 is mounted on the circuit board 50. FIG. 4 is a view including a cross section of a portion 20.

  The upper elastic portion 10 is formed in a shape that protrudes downward on both sides of the LED 3 from the upper portion of the socket body 2. The end portion of the upper elastic portion 10 has an upper contact surface 10 a that contacts the surface of the circuit board 50 in a state where the light emitting device 1 is mounted on the circuit board 50.

The leg-shaped elastic part 20 is integrally constituted by a first leg part 20a and a second leg part 20b protruding downward from the lower part of the socket body 2 and an arch part 20c connecting between the first leg part 20a and the second leg part 20b. The arch portion 20c is formed in a shape curved in the direction of the socket body 2 so that the first leg portion 20a and the second leg portion 20b connected at both ends thereof are easily given elastic deformation and elastic recovery force. . Further, similarly to the above, the first leg portion 20a and the second leg portion 20b have leg portion contact surfaces 20d that contact the back surface of the circuit board 50 in a mounted state.
(Attaching action of the light emitting device 1)
FIG. 3 shows a case where the light-emitting device 1 is attached to the circuit board 50, and is a view showing the attachment operation step by step.

  In FIG. 3A, for example, the light emitting device 1 is grasped with an insert machine or a finger in a direction in which the shape of the mounting hole 51 of the circuit board 50 and the shape of the leg-shaped elastic portion 20 is matched, and brought close to the mounting hole 51. . Here, the maximum width formed by the first leg portion 20a and the second leg portion 20b is W5, and the leg portion abutment is formed on the leg contact surface 20d formed by the first leg portion 20a and the second leg portion 20b. When the maximum width in the portion close to the contact surface 20d is W6 and the width of the mounting hole 51 to which the leg-shaped elastic portion 20 is attached is W7, W5> W6> W7.

  FIG. 3B shows a diagram in the middle of mounting the light emitting device 1 on the circuit board 50. Since W5> W7, the first leg portion 20a, the second leg portion 20b, and the arch portion 20c receive a reaction force from the inner wall of the mounting hole portion 51, and the arch portion 20c further curves toward the socket body 2. To do. When the light emitting device 1 is pushed downward in this state, the leading end portions of the first leg portion 20a and the second leg portion 20b reach the point where they exit the attachment hole portion 51.

  FIG. 3C shows a diagram in which the light emitting device 1 is completely mounted on the circuit board 50. When the distal end portions of the first leg portion 20a and the second leg portion 20b pass through the attachment hole 51, the leg contact surface 20d comes into pressure contact with the back surface of the circuit board 50. At the same time, the upper contact surface 10a of the upper elastic portion 10 is in pressure contact with the surface of the circuit board 50, and the anode terminal 3b and the cathode terminal 3c are in pressure contact with the anode wiring pattern 52a and the cathode wiring pattern 52b on the circuit board 50.

  The upper elastic portion 10 has the anode terminal 3b and the cathode terminal 3c connected to the anode wiring by the force acting in the direction F3 shown in FIG. 3C by the elastic restoring force of the arch portion 20c, as shown in FIG. The pattern 52a and the cathode wiring pattern 52b are bent and attached until they are sufficiently pressed. Therefore, even if an external force is applied in the vertical direction of the light emitting device 1, the light emitting device 1 is not easily detached because the upper contact surface 10a and the leg contact surface 20d are pressed against the circuit board 50. The connection state of the anode terminal 3b and the cathode terminal 3c with the anode wiring pattern 52a and the cathode wiring pattern 52b is also maintained.

  On the other hand, since W6> W7, in the mounted state, force is exerted in the directions F1 and F2 shown in FIG. 3C by the elastic restoring force of the first leg portion 20a, the second leg portion 20b, and the arch portion 20c. Even if an external force acts on the light emitting device 1 in the horizontal direction, no rattling occurs.

  FIG. 4 is a diagram showing a modification of the first embodiment described above. An arch portion 20 e constituting the leg-shaped elastic portion 20 is formed in a shape curved in the opposite direction of the socket body 2. Although the arch portion 20e has a shape that is easy to give elastic deformation and elastic recovery force to the first leg portion 20a and the second leg portion 20b that are connected at both ends, it is the same as in the first embodiment. This is effective for improving the mold removability when the socket body 2 is integrally formed.

(Removal action of the light emitting device 1)
When removing the light-emitting device 1 from the circuit board 50, it carries out in the reverse order shown to Fig.3 (a), (b), (c).

  A force is applied to the tips of the first leg portion 20a and the second leg portion 20b so as to narrow the distance between the first leg portion 20a and the second leg portion 20b with a jig or a fingertip for removing the light emitting device 1. Pull upward.

(Effects of the first embodiment)
According to the first embodiment, the light emitting device 1 can be mounted on the circuit board 50 simply by inserting the socket body 2 into the mounting hole 51 of the circuit board 50 and pushing it in while applying force to the circuit board 50 side. Is possible. Further, in the case of equipment maintenance or the like, the light emitting device 1 having a defective light emission can be detached from the circuit board 50 with a simple operation.

  Therefore, it is possible to easily and quickly mount and connect the LED to the circuit board without requiring soldering work, thereby improving the work efficiency and making contact between the LED terminal and the circuit board wiring. It is possible to provide a light emitting device capable of reliably performing the above.

  In particular, the use of polyethersulfone (PES) as the material of the socket body 2 has an effect of enabling a light emitting device that is particularly excellent in long-term stability of elastic restoring force.

  In the case where the present embodiment is applied to a lighting fixture, a signal device, an electric light board, a game machine, a vending machine or the like, the following effects are obtained.

  That is, in the above-described devices, etc., in order to enhance the lighting effect and to give instructions on the game method and the sales method, a large number of LEDs are provided on the inside of the panel surface and the decorative panel, and these lights are exposed through the panel surface and the decorative panel. I try to emit. Each LED on the circuit board was inserted into a lead hole formed on the circuit board and soldered to the conductive pattern on the circuit board in that state. However, since these devices use a large number of LEDs, a lot of man-hours are required for the soldering work, and the LEDs may be destroyed due to heat during the soldering work. Repairing a circuit board in which a defective light emission has occurred in a part of the LED takes time to remove the LED and has a problem in equipment maintenance.

  According to the first embodiment, in a device that uses many LEDs for illumination, the light-emitting device 1 can be easily attached to the circuit board 50, and the light-emitting device 1 can be replaced and repaired very easily. In particular, it has an effect on the manufacture and maintenance of these devices.

(Second Embodiment)
FIG. 5 is a perspective view showing the second embodiment. The light emitting device 100 includes a socket body 102 and an LED 103.

  The socket body 102 is configured to include the LED 103 and the leg-shaped elastic portion 120. Of these portions constituting the socket body 102, the leg-shaped elastic portion 120 may be formed integrally with the socket body 102. What was formed as a separate body may be integrally combined. In the present embodiment, the following description will be made assuming that the leg-shaped elastic part 120 is formed integrally with the socket body 102.

  When the socket body 102 is made of resin and is formed integrally with the leg-shaped elastic portion 120, etc., the socket body 102 is excellent in elastic restoring force and has light resistance, high heat resistance, chemical resistance, hydrolysis resistance, and the like. Resin is preferable, and PES, PC, PFS or the like is preferable, and polyethersulfone (PES) is particularly preferable.

  Here, the leg-shaped elastic part 120 includes a first leg part 120a, a second leg part 120b, and an arch part 120c curved in the direction of the socket body 102. The width of the first leg part 120a is W101, The width of the two leg portions 120b is W102 and is configured to have different leg widths. In addition, the first leg portion 120a and the second leg portion 120b have leg portion contact surfaces 120d that contact the back surface of the circuit board 150 when mounted.

  The circuit board 150 includes a mounting hole 151 for mounting the light emitting device 100 and a wiring pattern. On the upper surface of the circuit board 150, anode wiring in a predetermined pattern is provided at a position where the anode terminal 103 b and the cathode terminal 103 c, which are LED terminals of the plurality of light emitting devices 100 arranged at predetermined positions according to the illumination or display target, can contact. A pattern 152a and a cathode wiring pattern 152b are formed. The anode wiring pattern 152a and the cathode wiring pattern 152b are distinguished so that a predetermined voltage can be applied to the anode terminal 103b and the cathode terminal 103c of the LED 103 having polarity, and are connected to a power supply unit (not shown).

  In the present embodiment, since the LED 103 includes one light emitting portion 103a therein, the anode terminal 103b and the cathode terminal 103c have a pair of terminals, and the anode wiring pattern 152a and the cathode wiring pattern 152b correspond to that. And a pair of wiring patterns.

  The mounting hole 151 is formed so that the hole shape is asymmetrical so that the anode terminal 103b and the cathode terminal 103c can be mounted with the correct polarity, and the light emitting device 100 can be mounted only in a certain method. Is formed. Specifically, as shown in FIG. 5, the hole width of the attachment hole 151 is formed in different shapes at both ends. That is, corresponding to the width W101 of the first leg portion 120a and the width W102 of the second leg portion 120b, hole widths W103 and W104 are formed, respectively, and W103 is slightly larger than W101, and W104 is larger than W102. Is also formed slightly larger. Since W102 is set to be larger than W103, the light emitting device 100 can be mounted only in one direction of the attachment hole 151.

  The LED 103 is a surface mount type light emitting diode, and includes a light emitting portion 103a, an anode terminal 103b which is a surface mount terminal, and a cathode terminal 103c. Since the LED 103 has polarity and needs to be mounted in a predetermined direction when mounted, the anode terminal 103b and the cathode terminal 103c are formed so as to be distinguished from each other. In the present embodiment, the LED 103 is incorporated into the socket body 102 based on the identification portion 102 a formed on a part of the socket body 102. When the light emitting unit 103a is used as a lighting device, the light emitting unit 103a mainly has an oscillation wavelength in the visible light region, and is driven by a predetermined applied voltage from the anode terminal 103b and the cathode terminal 103c, thereby having a predetermined emission spectrum. Emits light. Note that a laser diode instead of the LED 103 can be similarly applied to the present invention.

  FIG. 6 is a diagram showing how the LED 103 is incorporated into the socket body 102. The socket main body 102 has an identification portion 102 a and a projection 102 b on the bottom of the socket main body 102. On the other hand, the LED 103 is formed with an identification portion 103d so that the anode terminal 103b and the cathode terminal 103c can be distinguished, and a gate recess 103e formed when the package of the LED 103 is injection molded.

  When the LED 103 is incorporated in the socket main body 102 in the direction of the arrow based on the identification part of each other, the protrusion 102b and the gate recess 103e are fitted and the LED 103 is attached to the socket main body 102 so that it does not easily come out. It has become.

  FIG. 7 shows a modification of the above-described second embodiment. The arch part 120e constituting the leg-shaped elastic part 120 is formed in a shape curved in the opposite direction of the socket body 102. The arch portion 120e has the same shape as the second embodiment in that it is easy to give elastic deformation and elastic recovery force to the first leg portion 120a and the second leg portion 120b connected at both ends, This is effective in improving the mold removability when the socket body 102 is formed integrally.

  The attaching and detaching actions of the light emitting device 100 are the same as those of the first embodiment. However, unlike the first embodiment, the second embodiment does not have the upper elastic portion 10, and thus the light emitting device. In a state where 100 is completely mounted on the circuit board 150, the anode terminal 103b and the cathode terminal 103c are in pressure contact with the anode wiring pattern 152a and the cathode wiring pattern 152b on the circuit board 150. Since other operations are the same, description thereof is omitted.

(Effect of the second embodiment)
According to the second embodiment, in addition to the effects of the first embodiment, a surface mount type LED that is widely used in the industry can be used. Therefore, it has a great effect in terms of cost, delivery date and the like.

(Third embodiment)
FIG. 8 is a perspective view showing the third embodiment. The light emitting device 200 includes a socket body 202 and an LED 203.

  The socket main body 202 is configured to include the LED 203 and the curved elastic portion 220. Of these portions constituting the socket main body 202, the curved elastic portion 220 may be formed integrally with the socket main body 202. What was formed as 1 may be united integrally. In the present embodiment, the following description will be made assuming that the curved elastic portion 220 is formed integrally with the socket body 202.

  When the socket body 202 is formed of resin and is formed integrally with the curved elastic portion 220 or the like, the resin has excellent elastic restoring force and has light resistance, high heat resistance, chemical resistance, hydrolysis resistance, and the like. PES, PC or PFS is preferable, and polyethersulfone (PES) is particularly preferable.

  Here, the bending elastic part 220 includes a first elastic part 220a that protrudes from one end of the socket body 202, a second elastic part 220b that is a curved part that follows, and a third elastic part 220c that reaches the other end of the socket body 202. It is configured. The first elastic portion 220a and the third elastic portion 220c have a contact surface 220d that contacts the back surface of the circuit board 250 in a mounted state. The width of the first elastic portion 220a is W201, and the width of the third elastic portion 220c is W202, which is configured to have different leg widths.

  The circuit board 250 includes a mounting hole 251 for mounting the light emitting device 200 and a wiring pattern. On the upper surface of the circuit board 250, anode wiring in a predetermined pattern is provided at a position where the anode terminal 203b and the cathode terminal 203c, which are LED terminals of a plurality of light emitting devices 200 arranged at predetermined positions according to illumination or display objects, can contact. A pattern 252a and a cathode wiring pattern 252b are formed. The anode wiring pattern 252a and the cathode wiring pattern 252b are distinguished so that a predetermined voltage can be applied to the anode terminal 203b and the cathode terminal 203c of the LED 203 having polarity, and are connected to a power supply unit (not shown).

  In this embodiment, since the LED 203 includes one light emitting portion 203a inside, the anode terminal 203b and the cathode terminal 203c have a pair of terminals, and the anode wiring pattern 252a and the cathode wiring pattern 252b also correspond to it. And a pair of wiring patterns.

  The mounting hole 251 is formed so that the hole shape is asymmetrical so that the anode terminal 203b and the cathode terminal 203c can be mounted with the correct polarity, and the light emitting device 200 can be mounted only in a certain method. Is formed. Specifically, as shown in FIG. 8, the hole width of the attachment hole 251 is formed in different shapes at both ends. That is, corresponding to the width W201 of the first elastic portion 220a and the width W202 of the third elastic portion 220c, the hole widths of W203 and W204 are formed, respectively, and W203 is slightly larger than W201, and W204 is larger than W202. Is also formed slightly larger. Since W202 is formed to be larger than W203, the light emitting device 200 can be mounted only in one direction of the mounting hole 251.

  The LED 203 is a surface mount type light emitting diode, and includes a light emitting portion 203a, an anode terminal 203b which is a surface mount terminal, and a cathode terminal 203c. Since the LED 203 has polarity and needs to be mounted in a predetermined direction when mounted, the anode terminal 203b and the cathode terminal 203c are formed so as to be distinguished from each other. In the present embodiment, the LED 203 is incorporated into the socket body 202 based on the identification portion 202 a formed on a part of the socket body 202. When the light emitting unit 203a is used as a lighting device, the light emitting unit 203a mainly has an oscillation wavelength in the visible light region, and is driven by a predetermined applied voltage from the anode terminal 203b and the cathode terminal 203c, thereby having a predetermined emission spectrum. Emits light. A laser diode instead of the LED 203 can be similarly applied to the present invention.

  The socket body 202 has an identification part 202a, and a projection 202b on the bottom of the socket body 202. On the other hand, the LED 203 is formed with an identification portion 203d so that the anode terminal 203b and the cathode terminal 203c can be distinguished, and a gate recess 203e formed when the package of the LED 203 is injection molded.

  When the LED 203 is incorporated into the socket body 202 in the direction of the arrow based on the identification part, the protrusion 202b and the gate recess 203e are fitted, and the LED 203 is mounted on the socket body 202.

(Attaching action of the light emitting device 200)
The light emitting device 200 is gripped by an insert machine or a finger in a direction in which the shape of the mounting hole 251 of the circuit board 250 matches the shape of the curved elastic portion 220 and is brought close to the mounting hole 251.

  FIG. 9 shows a case where the light emitting device 200 is attached to the circuit board 250, and shows the attachment action step by step, and is a cross-sectional view taken along the line CC in FIG.

  In FIG. 9A, for example, the light emitting device 200 is grasped with an insert machine or a finger in a direction in which the shape of the mounting hole 251 of the circuit board 250 matches the shape of the curved elastic portion 220 and is brought close to the mounting hole 251. Here, the maximum width formed by the first elastic part 220a and the third elastic part 220c is W205, the maximum width of the contact surface 220d adjacent to the contact surface 220d is W206, and the curved elastic portion 220 is When the width of the mounting hole 251 to be mounted is W207, W205> W206> W207 is formed.

  FIG. 9B shows a diagram in the middle of mounting the light emitting device 200 on the circuit board 250. Since W205> W207, the first elastic part 220a, the second elastic part 220b, and the third elastic part 220c receive a reaction force from the inner wall of the mounting hole 251 and the curved second elastic part 220b is Further, the socket body 2 is bent in the opposite direction. In this state, the light emitting device 200 is pushed downward.

  FIG. 9C shows a state where the light emitting device 200 is completely mounted on the circuit board 250. When the second elastic part 220 b comes out of the attachment hole 251, the contact surface 220 d comes into pressure contact with the back surface of the circuit board 250. At the same time, the anode terminal 203 b and the cathode terminal 203 c are in pressure contact with the anode wiring pattern 252 a and the cathode wiring pattern 252 b on the circuit board 250.

  Due to the force acting in the F3 direction shown in FIG. 9C by the elastic restoring force of the first elastic part 220a, the second elastic part 220b, and the third elastic part 220c, an external force acts in the vertical direction of the light emitting device 200. In addition, since the light emitting device 200 is not easily detached because it is pressed against the circuit board 250 by the contact surface 220d, the anode terminal 203b and the cathode terminal 203c are connected to the anode wiring pattern 252a and the cathode wiring pattern 252b. Maintained.

  On the other hand, since W206> W207, in the mounted state, forces are generated in the directions F1 and F2 shown in FIG. 9C by the elastic restoring forces of the first elastic portion 220a, the second elastic portion 220b, and the third elastic portion 220c. Even if an external force acts in the horizontal direction of the light emitting device 200, it does not rattle.

(Removal action of light emitting device 200)
When the light emitting device 200 is removed from the circuit board 250, it is performed in the reverse order shown in FIGS. 9 (a), 9 (b), and 9 (c).

  A force is applied to the distal end portion of the first elastic portion 220a so as to narrow the distance between the first elastic portion 220a and the third elastic portion 220c with a jig or a fingertip for removal, and the light emitting device 200 is pulled upward.

(Effect of the third embodiment)
According to the third embodiment, in addition to the effects of the first embodiment and the second embodiment, one end of the curved elastic portion 220 is opened, so that the light emitting device 200 is mounted on the circuit board 250. In this case, smoother work is possible, which has a great effect in improving productivity.

(Fourth embodiment)
FIG. 10 is a perspective view showing the fourth embodiment. In the fourth embodiment, in the third embodiment, a flange portion 220e is provided at the end of the third elastic portion 220c, and a flange receiving portion 202c is provided in the socket body 202. The eaves part 220e and the eaves receiving part 202c are formed so as to mesh with each other in a state where the light emitting device 200 is mounted on the circuit board 250. Therefore, in addition to the effect of the third embodiment, the prevention of disconnection in the mounted state is further improved, and it has a great effect in that a more stable mounted state can be maintained.

(Fifth embodiment)
FIG. 11 is a perspective view showing the fifth embodiment. The light emitting device 300 includes a socket body 302 and an LED 303. 12 shows a state in which the light emitting device 300 is mounted on the circuit board 350, and is a DD cross-sectional view in FIG.

  The socket main body 302 is configured to include the LED 303 and the leg-shaped elastic portion 320. Of these portions constituting the socket main body 302, the leg-shaped elastic portion 320 may be formed integrally with the socket main body 302. What was formed as a separate body may be integrally combined. In the present embodiment, the following description will be made assuming that the leg-shaped elastic portion 320 is formed integrally with the socket body 302. Here, the leg-shaped elastic part 320 includes a first leg part 320 a, a second leg part 320 b, and an arch part 320 c curved in the direction of the socket main body 302.

  The socket main body 302 is configured to incorporate the LED 303 from above, and has four lock portions 302a. The LED 303 incorporated from above is locked from above at the tip of the lock portion 302 a and is configured not to easily come out of the socket body 302.

  At the socket bottom 302b into which the LED 303 is incorporated, there is a stabilizing plate 360 that is interposed between the anode terminal 303b and cathode terminal 303c of the LED 303 and the anode wiring pattern 352a and cathode wiring pattern 352b to stabilize the electrical contact state. And are incorporated at positions corresponding to the anode terminal 303b and the cathode terminal 303c. The stabilizing plate 360 is formed of a spring material such as phosphor bronze having excellent spring properties and electrical contact resistance.

  Since the configurations of the LED 303 and the circuit board 350 are the same as those of the second embodiment, the description thereof is omitted.

(Attaching action of the light emitting device 300)
In the same manner as in the second embodiment, the light emitting device 300 is pushed from above, and the leg-shaped elastic portion 320 is inserted into the mounting hole 351 in a predetermined direction.

  In the mounted state, the light-emitting device 300 is urged toward the circuit board 350 by the elastic recovery force of the leg-shaped elastic part 320, so that the anode terminal 303 b and the cathode terminal 303 c of the LED 303 are connected to each other through the stabilizers 360. Electrically and stably connected to the anode wiring pattern 352a and the cathode wiring pattern 352b.

(Effect of 5th Embodiment)
According to the fifth embodiment, in addition to the effects of the first embodiment and the second embodiment, the following effects are obtained. That is, since the anode terminal 303b and the cathode terminal 303c are electrically connected to the anode wiring pattern 352a and the cathode wiring pattern 352b through the stabilizer 360 having excellent spring characteristics and excellent electrical characteristics, it is more stable. A stable connection state can be maintained, and high-brightness LEDs can be used with stable performance. In particular, since the edge of the stabilizing plate 360 bites into the anode wiring pattern 352a and the cathode wiring pattern 352b, it has a great effect in that a more stable connection state can be maintained and the performance can be further improved.

  In addition, since the LED 303 incorporated in the socket body 302 is configured to be locked at the tip of the lock portion 302a from above, the LED 303 can be incorporated into the socket body 302 from above, which is excellent in assemblability and improved productivity. It has a big effect in terms of making it.

(Sixth embodiment)
FIG. 13 is a perspective view showing the sixth embodiment. The curved elastic portion 321 includes a first elastic portion 321a that protrudes from one end of the socket body 302, a second elastic portion 321b that is a curved portion that follows, and a third elastic portion 321c that reaches the other end of the socket body 302. Yes. The end portion of the third elastic portion 321c has a flange portion 321e, and the socket body 302 has a flange receiving portion 302c. And the collar part 321e and the collar receiving part 302c are formed so that it may mesh | engage in the state mounted in the circuit board. Therefore, in addition to the effect of the fifth embodiment, the prevention of disconnection in the mounted state is further improved, and it has a great effect in that a more stable mounted state can be maintained.

  In addition, since one end of the curved elastic portion 321 is open, when the light emitting device is mounted on the circuit board, a smoother operation is possible, which has a great effect in improving productivity.

(Seventh embodiment)
FIG. 14 is a perspective view showing the seventh embodiment. The light emitting device 400 includes a socket body 402 and an LED 403.

  The socket body 402 includes an LED 403, an upper elastic portion 410, and a leg-shaped elastic portion 420. Among these portions constituting the socket main body 402, the upper elastic portion 410 and the leg-shaped elastic portion 420 are the socket main body 402. May be formed integrally with each other, or may be formed integrally as a separate body. This embodiment has the following differences compared to the first embodiment.

  The first leg 420a has a first protrusion 420e so that the leg contact surface 420d projects to the near side in FIG. 14, and the leg contact surface 420d is on the back side in the second leg 420b. It has the 2nd projection part 420f so that it may overhang.

  Further, in the mounting hole portion 451 of the circuit board 450, a first expansion portion 451a and a second expansion portion 451b are additionally formed as compared with the first embodiment. The first extension portion 451a and the second extension portion 451b are provided in the first embodiment in a state where the light emitting device 400 is twisted into the mounting hole 451 in the first embodiment by a predetermined angle, for example, 10 degrees. It has been extended so that it can be implemented in the same way as

  When the light emitting device 400 is mounted in the mounting hole 451 of the circuit board 450, the light emitting device 400 is set in a rotation direction twisted by a predetermined angle, for example, 10 degrees from the posture at the completion of mounting, and the first extension It is inserted into the part 451a and the second extension part 451b, and the same mounting work as that of the first embodiment is performed. In the present embodiment, after the above mounting operation, the light emitting device 400 is mounted at a predetermined position by twisting the light emitting device 400 by 10 degrees in the R direction shown in FIG. In this case, as in the first embodiment, since the upper contact surface 410a and the leg contact surface 420d are pressed against the circuit board 450, the light emitting device 400 does not easily come off the circuit board 450. In addition, since the upper surfaces of the first protrusions 420e and the second protrusions 420f are pressure-bonded to the back surface of the circuit board 450, the effect of preventing the removal is further improved.

  Therefore, according to the seventh embodiment, in addition to the effects of the first embodiment, the effect of preventing the light-emitting device 400 from being detached is further improved, and in particular, when the thickness of the circuit board 450 varies. Has an effect.

It is a perspective view which shows 1st Embodiment. FIGS. 2A and 2B are views showing the AA cross section and the BB cross section of FIG. 1, and the upper elastic portion 10 and leg-like elasticity in a state where the light emitting device 1 is mounted on the circuit board 50. FIG. 4 is a view including a cross section of a portion 20. It is a figure which shows the case where the light-emitting device 1 is attached to the circuit board 50, and shows an attachment effect | action in steps. It is a figure which shows the modification of 1st Embodiment. It is a perspective view which shows 2nd Embodiment. It is a figure which shows a mode that LED103 is integrated in the socket main body 102. FIG. The modification of 2nd Embodiment is shown. It is a perspective view which shows 3rd Embodiment. The case where the light-emitting device 200 is attached to the circuit board 250 is shown, and the attaching action is shown stepwise, and is a cross-sectional view taken along the line CC in FIG. It is a perspective view which shows 4th Embodiment. It is a perspective view which shows 5th Embodiment. FIG. 12 is a cross-sectional view taken along the line DD in FIG. 11, showing a state where the light emitting device 300 is mounted on the circuit board 350. It is a perspective view which shows 6th Embodiment. It is a perspective view which shows 7th Embodiment.

Explanation of symbols

1, 100, 200, 300, 400 ... Light-emitting device 2, 102, 202, 302, 402 ... Socket body 3, 103, 203, 303, 403 ... LED
3b, 103b, 203b, 303b ... anode terminals 3c, 103c, 203c, 303c ... cathode terminals 10, 410 ... upper elastic parts 20, 120, 320, 420 ... leg elastic parts 20a, 120a, 320a, 420a ... first leg Parts 20b, 120b, 320b, 420b ... second leg parts 20c, 20e, 120c, 320c ... arch parts 20d, 120d, 420d ... leg contact surfaces 50, 150, 250, 350, 450 ... circuit boards 51, 151, 251, 351, 451... Mounting holes 52 a, 152 a, 352 a, 452 a... Anode wiring pattern 52 b, 152 b, 352 b, 452 b ... Cathode wiring pattern 102 a ... Identification part 102 b, 202 b ... Protrusion part 103 d, 203 d ... Identification part 202 c, 302 c ... Reception part 203e ... Gate recess 220 ... Bending elastic portion 220a ... first elastic portion 220b ... second elastic portion 220c ... third elastic portions 220e, 320e, 321e ... collar 302a ... lock portion 302b ... socket bottom 360 ... stabilizing plate 451a ... first expansion portion 451b ... first 2 expansion part

Claims (9)

A socket body removable from the insertion hole of the circuit board having the wiring portion;
A light emitting element provided integrally with the socket body and having a terminal having polarity;
A first contact surface provided at a lower portion of the socket body, having a pair of leg portions and a curved portion connecting the leg portions, and contacting a back surface of the circuit board through a predetermined insertion hole of the circuit board; A leg-shaped elastic part having,
An upper elastic portion provided on an upper portion of the socket body and having a second contact surface that contacts the upper surface of the circuit board while being elastically deformed;
The light emitting device is mounted on the circuit board by bringing the terminal of the light emitting element into contact with the wiring part of the circuit board by a restoring force due to elastic deformation of the leg-like elastic part and the upper elastic part. apparatus. A socket body removable from the insertion hole of the circuit board having the wiring portion;
A light-emitting element incorporated in the socket body and provided with a terminal having polarity;
A first contact surface provided at a lower portion of the socket body, having a pair of leg portions and a curved portion connecting the leg portions, and contacting a back surface of the circuit board through a predetermined insertion hole of the circuit board; A leg-shaped elastic part having
The light emitting device is mounted on the circuit board by bringing the terminal of the light emitting element into contact with the wiring part of the circuit board by a restoring force due to elastic deformation of the leg-like elastic part. A socket body removable from the insertion hole of the circuit board having the wiring portion;
A light-emitting element incorporated in the socket body and provided with a terminal having polarity;
A curved elastic portion provided at a lower portion of the socket body, protruding from one end of the socket body, and formed to reach the other end of the socket body through a curved portion;
The light emitting device is mounted on the circuit board by bringing the terminal of the light emitting element into contact with the wiring part of the circuit board by a restoring force due to elastic deformation of the curved elastic part. A socket body removable from the insertion hole of the circuit board having the wiring portion;
A light-emitting element incorporated in the socket body and provided with a terminal having polarity;
A stabilizer provided in the socket body for electrically connecting the terminal of the light emitting element and the wiring portion of the circuit board;
A curved elastic portion provided at a lower portion of the socket body, protruding from one end of the socket body, and formed to reach the other end of the socket body through a curved portion;
The terminal of the light emitting element is brought into contact with the wiring part of the circuit board via the stabilizer and is mounted on the circuit board by a restoring force due to elastic deformation of the curved elastic part. Light emitting device.   The light emitting device according to claim 1, wherein the light emitting element having the polarity is an LED.   3. The light emitting device according to claim 1, wherein the leg-shaped elastic portions are formed in different shapes so as to prevent an insertion hole of the circuit board from being inserted in a wrong direction.   5. The light emitting device according to claim 3, wherein the curved elastic portion is formed in a different shape so as to prevent the insertion hole of the circuit board from being inserted in a wrong direction.   5. The light emitting device according to claim 3, wherein the curved elastic portion is fixed to the other end side of the socket body after being mounted on the circuit board. The light emitting device according to claim 1, wherein the socket body is a polyethersulfone.

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