JP3684752B2 - Light emitter with socket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a socket-equipped light emitter in which a light emitter is assembled to a socket via a holding plate.
[0002]
[Prior art]
Conventionally, a light emitter with a socket in which a light emitter having a light emitting element having a polarity such as a light emitting diode is fixed to a substrate and the substrate is assembled to a socket is known (Japanese Utility Model Laid-Open No. 2-88259). reference).
[0003]
[Problems to be solved by the invention]
However, the conventional light emitter with socket has been assembled by pushing the substrate into the socket while applying a force to the light emitter when the substrate to which the light emitter is fixed is assembled into the socket. That is, since the entire board is inserted into the socket, even if the board is first gripped and inserted into the socket, it is necessary to finally apply a force to the light emitter to push the board into the socket. As a result, the light emitting element has a lead piece of the light emitting element fixed to the substrate by soldering. Therefore, if a force is applied to the light emitting element when assembling to the socket, stress concentrates on the soldered portion and cracks occur. As a result, there was a problem of causing poor conduction.
The present invention has been made based on the above circumstances, and an object thereof is to provide a socket-equipped light emitter capable of safely assembling a substrate holding a light emitter into a socket.
[0004]
[Means for Solving the Problems]
(Means of Claim 1)
The holding body for holding the light emitter has a rib to which a force can be applied when inserted into the socket, and this rib is provided to protrude outward from the outer diameter of the light emitter.
In this case, the holding plate can be pushed into the socket while applying a force to the rib, so that it is not necessary to apply a force to the light emitter. As a result, no stress is applied to the portion where the lead piece of the light emitting element is bonded, so that a crack is not generated in the bonded portion with the substrate, and conduction failure can be prevented.
In addition, a set of recesses corresponding to the chuck portion of the automatic assembly machine is provided on the outer wall surface of the socket, and the groove widths of the set of recesses are different. According to this configuration, when the socket is gripped by the chuck portion of the automatic assembly machine, it can be determined whether or not the orientation of the socket is an appropriate orientation corresponding to the polarity of the light emitting element.
[0005]
(Means of Claim 2)
The holding body for holding the light emitter has a rib to which a force can be applied when inserted into the socket, and this rib is provided to protrude outward from the outer diameter of the light emitter.
In this case, the holding plate can be pushed into the socket while applying a force to the rib, so that it is not necessary to apply a force to the light emitter. As a result, no stress is applied to the portion where the lead piece of the light emitting element is bonded, so that a crack is not generated in the bonded portion with the substrate, and conduction failure can be prevented.
Further, the socket is provided with a flange-like flange portion, and this flange portion is provided with a large radial length only in a part in the circumferential direction. According to this configuration, if the mounting direction of the socket with respect to the panel is not appropriate, for example, the flange portion (the portion having a large radial length) interferes with the pin provided on the panel and cannot be inserted into the mounting hole. Therefore, the incorrect assembly of the socket to the panel can be prevented.
[0006]
(Means of claim 3)
The holding body for holding the light emitter has a rib to which a force can be applied when inserted into the socket, and this rib is provided to protrude outward from the outer diameter of the light emitter.
In this case, the holding plate can be pushed into the socket while applying a force to the rib, so that it is not necessary to apply a force to the light emitter. As a result, no stress is applied to the portion where the lead piece of the light emitting element is bonded, so that a crack is not generated in the bonded portion with the substrate, and conduction failure can be prevented.
In addition, a protrusion that can be engaged with an alignment brush provided in the middle of the transport line is provided on the outer wall surface of the socket. According to this configuration, when the light emitter with the socket is caused to flow through the transport line and transported to a predetermined position, the protrusion of the socket and the alignment brush provided on the transport line can be used to move the light emitter with the socket. The orientation can be aligned in a certain direction.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, the light emitter with socket of the present invention will be described with reference to the drawings.
1A is a plan view seen from one of the light emitter and the circuit board, FIG. 1B is a side view of the light emitter and the circuit board, and FIG. 1C is a plan view seen from the other of the light emitter and the circuit board. .
The light emitter 1 with the socket according to the present embodiment is assembled in, for example, an assembly hole 2a (see FIG. 10) of the panel 2 provided in the back (back side) of the instrument display board of the automobile so that the seat belt is not worn. Used as a warning indicator lamp.
As shown in FIG. 2, the socket-equipped light emitter 1 includes a light emitter 4 having a light emitting element 3 having a polarity (a light emitting diode / see FIG. 8), a circuit board 5 to which the light emitter 4 is fixed, The socket 6 is configured to hold the circuit board 5.
The light-emitting body 4 is formed by housing the light-emitting element 3 in a light-emitting element 3 molded in a bulb shape with a transparent material such as synthetic resin or glass, or in a container made of a transparent material. The light-emitting body 4 has two lead pieces 3a of the light-emitting element 3 taken out from the bottom, and its tip is bent into an L shape.
[0008]
The circuit board 5 has printed wiring formed on both surfaces of an insulating plate made of resin or the like, and an IC 7 (integrated circuit) and electronic components (resistor 8 and capacitor 9) are assembled on the substrate surface. As shown in FIG. 8, the IC 7 includes an oscillation circuit, a frequency dividing circuit, and an output circuit, and constitutes an electric circuit for causing the light emitting element 3 to blink for a predetermined time. The IC 7 and the electronic components 8 and 9 are assembled to the opposite surfaces of the circuit board 5 as shown in FIG.
[0009]
Two mounting holes 5a (see FIG. 1 (b)) are provided in the upper part of the circuit board 5, and the lead pieces 3a of the light-emitting elements 3 are inserted into the mounting holes 5a. It is electrically connected to the wiring (see FIG. 1).
As shown in FIG. 1, two mounting holes 5b are provided in the lower part of the circuit board 5, and a set for making electrical connection with the outside (electrical wiring formed in the panel 2) in the mounting holes 5b. Part of the connecting terminal piece 10 (plus side and minus side) is inserted and electrically connected to the printed wiring on the substrate surface by soldering (see FIG. 2).
Further, as shown in FIGS. 1A and 1C, ribs 5c are formed on both sides of the upper portion of the circuit board 5, respectively. The rib 5c is formed by enlarging the lateral width dimension (the dimension in the left-right direction in FIGS. 1A and 1C) at the top of the substrate.
In addition, each said connection terminal piece 10 is distribute | arranged on the both sides of the circuit board 5, and each front-end | tip part is bend | folded by the substantially L shape. Further, as shown in FIG. 2, each connection terminal piece 10 is provided with an elastic piece 10 a that is cut and raised outward to give elasticity.
[0010]
The socket 6 is formed in a substantially cylindrical shape having a bottom surface with an insulating material (for example, resin), and has a flange-shaped flange portion 6a at a predetermined height position from the bottom surface (see FIG. 2). A set of engagement pieces 6c (see FIGS. 3 and 4) is provided on the outer peripheral surface of a cylindrical wall 6b extending in a cylindrical shape upward from 6a. Further, a groove 6 d (see FIG. 2) that holds the lower end of the circuit board 5 that is inserted into the socket 6 is formed at the bottom of the socket 6.
The cylindrical wall 6b is provided with a pair of guide grooves 6e that guide the connection terminal pieces 10 when the circuit board 5 is inserted into the socket 6 at symmetrical positions in the radial direction. Further, in the upper part of the cylindrical wall 6b, there is an escape groove 6f for releasing the rib 5c in order to prevent the rib 5c of the circuit board 5 from interfering with the cylindrical wall 6b when the circuit board 5 is inserted into the socket 6. Two places are provided (see FIG. 3). However, these two relief grooves 6f are provided at positions eccentric from a straight line (diameter) passing through the center of the socket 6 (see FIG. 4).
[0011]
On the outer wall surface below the flange portion 6a, a pair of recesses 6g and 6h extending in a groove shape from the bottom surface to the flange portion 6a are provided at symmetrical positions in the radial direction (FIGS. 5, 6 and 6). 7). The recesses 6g and 6h are provided for gripping the socket 6 by a chuck portion (not shown) of the automatic assembly machine. That is, the automatic assembling machine includes two support pieces (not shown) in the chuck portion, and the two support pieces can be inserted into the recesses 6g and 6h to grip the socket 6. However, as for each recessed part 6g, 6h, the groove width of one recessed part 6g is slightly larger than the other recessed part 6h only on the bottom side (W1> W2). Accordingly, the two support pieces of the chuck portion are also provided with a size corresponding to the groove width of each of the recesses 6g and 6h.
In addition, a columnar protrusion 6i is provided in the vicinity of one recess 6g on the outer wall surface below the flange portion 6a. The protrusion 6i engages with two alignment brushes 11 and 12 (see FIG. 9) provided in the middle of the transport line when the light emitter 1 with the socket flows through the transport line (not shown). Thus, the orientation of the socket 6 can be changed to a specific direction.
[0012]
When the flanged part 6a is assembled by inserting the light emitter 1 with the socket into the assembly hole 2a (see FIG. 10) of the panel 2, the upper surface of the flange part 6a abuts against the wall surface of the panel 2 around the assembly hole 2a. Then, positioning in the insertion direction with respect to the panel 2 is performed. Further, as shown in FIGS. 4 and 5, the flange portion 6 a is provided with a large length in the radial direction only in a part in the circumferential direction. This prevents misassembly of the socket 6 with respect to the panel 2 (detailed later).
The pair of engagement pieces 6c rotate the socket 6 by a predetermined angle with respect to the panel 2 after passing through the assembly hole 2a when the light emitter 1 with the socket is inserted into the assembly hole 2a of the panel 2. Thus, the socket 6 can be fixed by sandwiching the panel 2 between the flange portion 6a.
[0013]
Next, a method for assembling the circuit board 5 to which the light emitter 4 is fixed into the socket 6 will be described.
After the circuit board 5 is aligned with the socket 6, the circuit board 5 is inserted into the socket 6 from the lower end side. However, the circuit board 5 is inserted at a position eccentric from the center of the socket 6. This is because when the circuit board 5 to which the light emitter 4 is fixed is viewed from the lateral direction (see FIG. 1B), the light emitter 4 is in the front-rear direction with respect to the circuit board 5 (left and right in FIG. 1B). This is because it is fixed at a position shifted in the direction). This can prevent the circuit board 5 from being inserted into the socket 6 in the opposite direction. That is, it can be inserted into the socket 6 in an appropriate direction corresponding to the polarity of the light emitting element 3.
[0014]
When the circuit board 5 is inserted to a predetermined depth in the socket 6, the elastic pieces 10 a of the connection terminal pieces 10 provided on the circuit board 5 come into contact with the corners of the grooves 6 d formed in the bottom of the socket 6. Thereafter, when the ribs 5c provided on both upper shoulders of the circuit board 5 are pushed in while applying force, the elastic pieces 10a of the connection terminal pieces 10 are deformed and pushed into the grooves 6d, and the circuit board 5 is inserted into the socket 6. Is retained. At this time, the rib 5c of the circuit board 5 is accommodated in an escape groove 6f formed in the cylindrical wall 6b of the socket 6, as shown in FIG. Moreover, the front-end | tip part of the connection terminal piece 10 is taken out outside the cylindrical wall 6b through the guide groove 6e of the cylindrical wall 6b.
[0015]
Next, the process of assembling the socket-equipped light emitter 1 to the panel 2 will be described. However, the assembly process by the automatic assembly machine will be described here.
First, the light emitter 1 with a socket is caused to flow through a conveyance line (not shown) and conveyed to a predetermined position. At this time, as shown in FIG. 9, the light emitter 1 with the socket flowing through the transport line is transported in a certain direction by the two alignment brushes 11 and 12 provided in the middle of the transport line. More specifically, the third socket 6 from the left in FIG. 9 rotates 90 degrees by the protrusion 6 i provided on the socket 6 engaging the first alignment brush 11, and the fourth from the left. The posture is changed in the same direction as the socket 6. Further, the fourth socket 6 from the left is rotated 90 degrees by engaging the second alignment brush 12 with the corners of the socket 6 opposite to the protrusions 6i, and the fifth and subsequent sockets from the left. Change the posture in the same direction as 6. Note that the second socket 6 from the left rotates 180 degrees by the protrusion 6 i provided on the socket 6 engaging the first alignment brush 11 and is in the same direction as the fourth socket 6 from the left. The posture can be changed.
[0016]
The socket-equipped light emitter 1 transported to a predetermined position by the transport line is lifted by gripping the recesses 6g and 6h of the socket 6 by the chuck portion of the automatic assembly machine. At this time, since the recesses 6g and 6h of the socket 6 have different groove widths, when the recesses 6g and 6h are gripped by the chuck portion, the orientation of the socket 6 is appropriate (the direction corresponding to the polarity of the light emitting element 3). ) Or not.
The socket-equipped light emitter 1 held by the chuck portion is moved as it is to a position facing the assembly hole 2a of the panel 2, and is inserted into the assembly hole 2a of the panel 2 from the light emitter 4 side. In addition, the assembly hole a of the panel 2 is formed in a shape and a size through which the cylindrical wall 6b of the socket 6 and the set of engagement pieces 6c can pass (see FIG. 10A).
[0017]
Here, if the assembly direction of the socket 6 is not appropriate, the flange portion 6a (the portion having a large radial length) of the socket 6 interferes with the pin 2b provided on the panel 2 as shown in FIG. It cannot be inserted into the assembly hole 2a. On the other hand, when the assembly direction of the socket 6 is appropriate, as shown in FIG. 12, the flange portion 6a of the socket 6 and the pin 2b on the panel 2 side do not interfere with each other, and the assembly hole 2a is properly assembled. Can be inserted into.
The socket-equipped light emitter 1 inserted into the assembly hole 2a rotates the socket 6 by a predetermined angle after the light emitter 4 passes through the assembly hole 2a and the flange portion 6a of the socket 6 contacts the wall surface of the panel 2. Thus, the panel 2 can be sandwiched and fixed between the flange portion 6a and the engagement piece 6c.
[0018]
(Effect of this embodiment)
In the present embodiment, the ribs 5c are provided on the upper shoulders of the circuit board 5, so that when the circuit board 5 is inserted into the socket 6, it can be pushed in while applying a force to the ribs 5c. Thereby, since it is not necessary to apply force to the light emitter 4 and push it in, no stress is applied to the soldering portion 13 (see FIG. 1) between the lead piece 3a of the light emitting element 3 and the circuit board 5, and the soldering portion. It is possible to prevent a situation in which a crack is generated in 13 and a conduction failure occurs. Further, by providing the rib 5c on the circuit board 5, the width of the upper end portion of the circuit board 5 is enlarged. However, a relief groove 6f is provided in the cylindrical wall 6b of the socket 6, and the rib 5c of the circuit board 5 is provided in the escape groove 6f. With the configuration in which the cylindrical wall 6b is stored, the inner diameter of the cylindrical wall 6b can be designed in accordance with the horizontal width of the circuit board 5 excluding the ribs 5c. For this reason, even if the rib 5c is provided on the circuit board 5, it is not necessary to enlarge the outer diameter of the cylindrical wall 6b, and the physique of the socket 6 can be prevented from increasing.
[0019]
According to the present embodiment, the socket 6 is provided with a pair of recesses 6g and 6h, and the groove widths of the recesses 6g and 6h are made different so that the orientation of the socket 6 emits light when the socket 6 is gripped by the chuck portion. It can be determined whether or not the orientation is appropriate for the polarity of the element 3. Therefore, if the socket 6 is not in the proper orientation at this time (when the socket 6 is gripped by the chuck portion), the socket 6 cannot be gripped by the chuck portion. 1 is not mistakenly assembled. As a result, when the process of assembling the socket-equipped light emitter 1 to the panel 2 is automated, the socket 6 held by the chuck portion of the automatic assembly machine is forcibly assembled to the panel 2 in the wrong assembly direction. As a result, the panel 2 can be prevented from being damaged due to incorrect assembly.
[0020]
Further, since the socket 6 is provided with a flange portion 6a having a wide width only in a part, when the assembly direction of the socket 6 is not appropriate, the flange portion 6a interferes with the pin 2b provided on the panel 2 side. Cannot be assembled. However, in this embodiment, it is possible to determine whether the orientation of the socket 6 is an appropriate orientation corresponding to the polarity of the light emitting element 3 when the socket 6 is gripped by the chuck portion. In the assembling process, the situation that the flange portion 6a interferes with the pin 2b does not occur. However, for example, after assembling the socket-equipped light emitter 1 to the panel 2 by an automatic assembly machine, the socket-equipped light emitter 1 is once removed from the panel 2 for some reason (for example, lighting failure of the light emitter 4). When re-assembling the panel 2 again, it is easier and easier to do it manually rather than using an automatic assembling machine. In such a case (when manually assembled), it is possible to prevent erroneous assembly to the panel 2 by the flange portion 6a provided on the socket 6 and the pin 2b on the panel 2 side.
[0021]
Furthermore, in this embodiment, the orientation of the light emitter 1 with the socket can be aligned in a certain direction by the protruding portion 6i provided on the socket 6 and the two alignment brushes 11 and 12 provided in the middle of the transport line. Therefore, the chuck failure can be prevented when the socket 6 is gripped by the chuck portion of the automatic assembly machine. Thereby, since an assembly process can be performed efficiently in a short time, automation of an assembly process can be greatly advanced.
[Brief description of the drawings]
FIG. 1A is a plan view seen from one of a light emitter and a circuit board, FIG. 1B is a side view of the light emitter and the circuit board, and FIG. 1C is a plan view seen from the other of the light emitter and the circuit board.
FIG. 2 is a cross-sectional view of the socket-equipped light emitter (cross-sectional view taken along line BB in FIG. 4).
FIG. 3 is a side view of the light emitter with socket (view A in FIG. 4).
FIG. 4 is a top view of a socket-equipped light emitter.
FIG. 5 is a bottom view of the socket.
6 is a lower side view of the socket (as viewed from C in FIG. 5). FIG.
FIG. 7 is a lower side view of the socket (as viewed from D in FIG. 5).
FIG. 8 is an electric circuit diagram for blinking a light emitting element.
FIG. 9 is a plan view showing a light emitter with a socket flowing through a conveyance line.
FIG. 10 is a plan view (a) and a side sectional view (b) showing an assembly hole of the panel.
FIG. 11 is a cross-sectional view showing a case where the assembly direction of the light emitter with socket on the panel is not appropriate.
FIG. 12 is a cross-sectional view showing a case where the assembly direction of the light emitter with socket to the panel is appropriate.
[Explanation of symbols]
1 Light emitter with socket
2 panels
2a Assembly hole 3 Light emitting element 3a Lead piece 4 Light emitter 5 Circuit board (holding plate)
5c rib 6 socket
6a Flange
6g recess
6h recess
6i protrusion
11 Alignment brush
12 Brush for alignment

Claims (3)

A light emitter including a light emitting element that emits light when energized;
A holding plate for holding the light emitter by electrically connecting lead pieces of the light emitting element;
A socket into which the holding plate is inserted in a press-fit state;
The holding plate has a rib capable of applying a force when inserted into the socket, and the rib protrudes outward from the outer diameter of the light emitter ,
A light emitting body with a socket, wherein a set of recesses corresponding to a chuck portion of an automatic assembly machine is provided on an outer wall surface of the socket, and the groove widths of the set of recesses are different . A light emitter including a light emitting element that emits light when energized;
A holding plate for holding the light emitter by electrically connecting lead pieces of the light emitting element;
A socket into which the holding plate is inserted in a press-fit state;
It is a light emitter with a socket that is used by being assembled in the assembly hole of the panel,
The holding plate has a rib capable of applying a force when inserted into the socket, and the rib protrudes outward from the outer diameter of the light emitter,
The socket is provided with a flange-shaped flange portion, and the flange portion is provided with a large length in the radial direction only in a part in the circumferential direction . A light emitter including a light emitting element that emits light when energized;
A holding plate for holding the light emitter by electrically connecting lead pieces of the light emitting element;
A socket into which the holding plate is inserted in a press-fit state;
The holding plate has a rib capable of applying a force when inserted into the socket, and the rib is provided to protrude outward from the outer diameter of the light emitter,
A light emitting body with a socket, characterized in that an outer wall surface of the socket is provided with a protrusion that can be engaged with an alignment brush provided in the middle of a conveying line.

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