JP3232964B2 - Electronics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device such as a proximity sensor, and more particularly to an electronic device characterized by a structure of a clamp for holding a cord or a connector.

[0002]

2. Description of the Related Art FIG. 15 is a sectional view showing an example of a conventional high frequency oscillation type proximity sensor. In a conventional proximity sensor 101, an annular groove is provided in a core 102, and a coil 104 held by a coil spool 103 is embedded in the groove. The core 102 is held on the front surface of a coil case 105 made of resin as shown in the figure, and these are housed in a base fitting 106. An electronic circuit unit 107 includes an oscillation circuit including the coil 104 and a signal processing unit that detects a decrease in the amplitude of the oscillation, and is mounted on the printed circuit board 108. Then, the coil 104 is mounted on the printed circuit board 108.
After connecting the coil case 10 to stabilize the performance
5 is filled with a primary filling resin 109.
In order to improve environmental resistance, the case of the proximity sensor is filled with an epoxy resin 110. When filling the epoxy resin 110, for example, a high temperature resin is filled using a syringe or the like. And the clamp part 11
1 holds the code 112 to form a proximity sensor. The display element 113 is mounted on the printed circuit board 108, and the light is guided to the outside of the case via the transparent light guide 114.

FIG. 16 is a longitudinal sectional view showing an example of another conventional proximity sensor. This proximity sensor is a base fitting 106
Is provided with a metal clamp portion 120 at the rear. An annular groove is formed in a portion of the clamp portion 120 to be inserted into the metal case, and a rubber packing 121 is inserted between the grooves to keep the case airtight. Opening is formed.
A connector 124 is press-fitted into this opening via a rubber packing 123, and its end is connected to a terminal of a printed circuit board to constitute a proximity sensor.

[0004]

However, in such a conventional proximity sensor, a clamp portion 111 for holding a cord 112 is provided at a rear portion of a case.
The gap between the second member and the inner wall of the clamp portion 111 was large, and the cord could not be held securely. Display element 11
In order to guide the light of No. 3 to the outside of the case, it is necessary to connect the transparent light guide 114 to the clamp or the like or to inject a transparent resin, which has a disadvantage that the structure becomes complicated. One end of the printed circuit board 108 is connected to the center of the core 102, but the other end is not particularly held. Therefore, stress is applied to the electronic components on which the printed circuit board 108 is inclined or curved in the case. There was also a drawback that it could be destroyed.

Further, as shown in FIG. 16, when the clamp section 120 and the connector section 122 are connected to the rear of the proximity sensor, they are press-fitted via rubbers 121 and 124 serving as packings. The pressure at the time of press-fitting is different due to the variation in length, and there is also a drawback that the yield is deteriorated.

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and it is an object of the present invention to enable a cord, a connector, and a printed board to be connected to a clamp portion in an electronic device such as a proximity sensor. It is an object.

[0007]

According to a first aspect of the present invention, there is provided an electronic apparatus having a clamp attached to one end of a case, wherein the clamp comprises a board guide for guiding a printed board, A board holding unit that holds a printed board inserted along the board guide unit, and a light guide unit that guides light of a display element mounted on the printed board held by the board holding unit to the outside. It is characterized by having.

According to a second aspect of the present invention, there is provided an electronic apparatus having a clamp portion attached to one end of a case, wherein the clamp portion includes a board guide portion for guiding a printed board, and the clamp portion extends along the board guide portion. A substrate holding portion for holding a printed circuit board inserted by inserting a light guide portion for guiding light of a display element mounted on the printed circuit board held by the substrate holding portion to the outside, and a display element of the printed circuit board. And a resin filling opening provided on the back side.

According to a third aspect of the present invention, there is provided an electronic apparatus having a clamp portion attached to one end of a case, wherein the clamp portion is configured to externally groove light of a display element mounted on a printed circuit board. A light guide section, and an opening for resin filling provided opposite to the back surface side of the display element of the printed circuit board.

According to a fourth aspect of the present invention, there is provided an electronic device having a clamp portion attached to one end of a case, wherein a connection end of a cord attached to the electronic device has a ring formed integrally with the cord. With a code,
The clamp unit includes a ring cord holding unit that holds a ring cord integrally formed with the cord, and a code holding unit that is provided behind the ring cord holding unit and has the same inner diameter as the cord. It is a feature.

According to a fifth aspect of the present invention, the clamp portion has a connector holder portion for holding a connector and a connecting portion integrally formed with the connector holder with a transparent resin.

[0012]

FIG. 1 is an assembly configuration diagram of a proximity sensor according to a first embodiment of the present invention, and FIG. 2 is a longitudinal sectional view thereof. As shown in these drawings, in the proximity sensor 1 according to the present embodiment, an annular groove is formed in the core 2, and the coil 4 wound around the coil spool 3 is housed in the annular groove of the core 2. An elongated printed board 5 is connected to the back surface of the core 2 as shown in the figure, and a shield film 6 covering the oscillation circuit section of the printed board 5 is provided. The core 2 is stored in the coil case 7. The coil case 7 is a bottomed cylindrical member made of resin. On the outer peripheral portion inside the coil case 7, a projection shown is formed as described later. The coil case 7 is housed in a base fitting 8. The base metal member 8 is a metal cylindrical case having a thread groove formed on an outer periphery, and a clamp portion 9 is attached to a back surface thereof. The clamp portion 9 is a transparent or translucent resin member, and holds the cord 10.

Next, the coil case 7 will be described in more detail. FIG. 3A is a side view of the coil case 7, and FIG.
4 is a longitudinal sectional view, FIG. 4 is a sectional view taken along line AA, and FIG.
As shown in an enlarged cross-sectional view taken along the line B, it is a cylindrical member having a U-shaped cross section with a front surface covered. As shown, first linear projections 21a to 21d for preventing resin leakage are provided on the inner outer peripheral surface housed in the base fitting 8. The linear projections 21a to 21d for preventing resin leakage are intermittent at four locations and are linear projections formed so as to substantially cover the circumference of the coil case 7. A second linear projection 22a for preventing resin leakage having a shorter length around the cutout portion of the linear projections 21a to 21d.
To 22d. First and second linear projections 21a to 21a
The notched portions of 21d and 22a to 22d serve as air outflow grooves. Furthermore, projections 23a to 23d having the same height as that of the linear projections 21a to 21d and having an arc-shaped cross section are provided at intermediate positions of the cutouts. Furthermore, linear projections 22a
At the intermediate positions of the projections 24a to 24d, arc-shaped projections 24a to 24d having the same height are provided. These arc-shaped projections 22a to 22d and 24a to 24d hold the coil case 7 coaxially so that the coil case 7 does not tilt when the coil case 7 is pressed into the base metal fitting 8 so that the air outflow grooves are not uneven. It is for doing. As shown in FIGS. 3A and 3B, the open end of the coil case 7 has a notch 25a in which only portions not corresponding to the linear projections 22a to 22d are cut inward as shown. ~ 25d
have. When the coil case 7 is stored in the base fitting 8, the innermost part thereof stops at the boundary where the thickness of the tip of the base fitting is slightly reduced. Therefore, the notches 25a to 25d are provided to secure an air outflow path when the coil case 7 is housed in the base fitting 8. Here, an intermediate portion between the linear projections 21a to 21d and the linear projections 22a to 22d is a groove 26 for storing the resin. Linear projections 21a to 21d and 22a to 22
As for d, as shown in the enlarged cross-sectional view taken along the line BB of FIG. 3A in FIG.
It is configured such that the thickness inside 22d is increased.

As shown in FIG. 4, the coil case 7 is provided on the inside of the cylinder inwardly from the front of the proximity sensor at an angle of 45 ° at a portion where the linear projections 21a to 21d are cut and at an intermediate portion thereof. Eight ribs 27a-2 parallel to the cylindrical axis
7h are provided. These ribs 27 a to 27 h are provided for holding the core 2 coaxially with the coil case 7. Further, cross-shaped linear projections 28a to 28d are provided inside the front surface of the coil case 7, as shown in FIG.

Next, a detailed configuration of the clamp unit 9 will be described with reference to FIGS. The purpose of this embodiment is to provide the clamp 9 with the holding of the printed circuit board 5 and the light guide in addition to the holding of the cord 10. 6A is a front view, FIG. 6B is a side view, FIG. 7A is a bottom view, FIG. 7B is a rear view, and FIG. 8 is a longitudinal sectional view. The clamp portion 9 is configured such that a portion embedded in the base metal member 8 is a cylindrical portion 31 having an outer diameter substantially equal to the inner diameter of the base metal member 8, and two band-shaped protrusions 32 are provided inside the cylindrical portion 31. Behind the flange 3
3 are provided. As shown in FIG. 8, the rear portion of the flange portion 33 is provided with a light guide portion 34 formed in a substantially semi-conical shape so that the cross section becomes substantially triangular, and behind the light guide portion 34, the cord 10 is elastically held. A cord attachment part 35 is provided. The cord mounting portion 35 is formed with an elongated slit-like opening 36 at predetermined intervals. As shown in FIG. 6A and FIG.
It is composed of a two-stage ring cord holding portion 35a slightly thicker than the outer shape of 0 and a cord holding portion 35b having an inner diameter equal to the outer diameter of the cord 10 and holding an end thereof.

Now, the cylindrical portion 3 inserted into the base fitting 8
As shown in the cross-sectional view of FIG. 8, a guide groove 37 for guiding both ends of the printed circuit board 5 of the proximity sensor and a tapered portion 38 are formed on the inner surface of 1. A substrate holding groove 39 is provided at the innermost side of the tapered portion 38. Substrate holding groove 39
Has a width substantially equal to the thickness of the printed circuit board 5, and has a linear projection 40 as shown in the figure. The linear projection 40 is deformed when the printed circuit board 5 is inserted.
This is for fixing the printed circuit board 5. Printed circuit board 5
When held in the substrate holding groove 39, one surface thereof faces the inner surface of the light guide 34. A display element 41 such as a light emitting diode is provided at this position on the printed circuit board 5.
Is implemented. Printed circuit board 5 on which display element 41 is mounted
Is mounted on the substrate holding groove 39 via the guide groove 37, the upper surface of the display element 41 substantially contacts the inner surface of the light guide 34. Even when a gap is generated during this time, the display element 41
8, the light of the display element 41 is guided to the light guide 34 via the transparent resin 42, and is directly or reflected from the light guide 34 as shown in FIG. The light is reflected by the surface 34a and emitted to the outside.

As shown in the back view of FIG. 7A, the diameter of the side of the flange portion 33 is enlarged in the clamp portion 9 so that the clamp portion 9 is located at a position facing the back surface of the display element 41 of the printed circuit board 5. An opening 43 is provided. As shown in FIG. 6 (b), the opening 43 has a periphery 44 formed around it. This opening 4
Reference numeral 3 denotes an opening for injecting a filling resin described later from the outside.

FIG. 9 is a perspective view showing a ring cord attached to the end of the cord 10. The cord 10 comprises a two-wire or three-wire cable, either of which is connected to the printed circuit board 5 by a proximity sensor. At this time, if two or three cables are drawn directly from the cord 10, there is a problem that the resin may enter the coating of the cord 10 when the resin is filled, and the diameter of the cord may expand. . This is a problem particularly in the case of the three-wire cable type cord shown in FIG. 9D because the resin easily enters between the cables. In order to solve this problem, a ring cord is attached to the end of the cord 10 in this embodiment. As shown in FIG. 9A, the ring cord 45 is attached to the end of the cord 10 by the ring cord holding part 3 of the clamp part 9.
The ring cord 45, which is a resin having a shape corresponding to the shape of 5a, is integrally formed as shown in FIG. 9B. In this way, the cord 10 to which the ring cord 45 is attached is accommodated in the cord attaching portion 35 having a step on the back surface of the clamp portion 10 as shown in FIG. 2, so that the cord 10 can be reliably prevented from falling off. Become. Also, when pulling out each cable from the ring cord 45 with respect to the cord 10, even in the case of a three-wire system, three cables are aligned with the mounting position of the printed circuit board 5 as shown in FIG.
Arbitrary positions and shapes can be selected, such as juxtaposition as shown in (c).

FIG. 10A is an assembly view showing the core 2 housed in the coil case 7 and the coil 4 wound around the coil spool 3, and FIG. 10B is a view seen from the opposite direction. As shown in these figures, an annular groove is formed in the core 2, and through holes 2a and 2b are provided on the back surface thereof.
The leads 4a, 4b at both ends of the coil are passed through the ends of the coil spool through the through holes 2a, 2b, and are connected to an oscillation circuit on a printed board (not shown).

Next, the manufacturing process of the proximity sensor according to the present embodiment will be described. The coil 4 wound around the coil spool 3 is housed in the annular groove of the core 2 in advance. Then, the leads 4 a and 4 b at both ends of the coil 4 are connected to the printed board 5, and the shield film 6 is wound around the printed board 5. Next, the core 2 is housed in the coil case 7 in this state, and is primarily filled in advance with an epoxy-based coil portion sealing resin 51 in order to stabilize the coil characteristics in advance. Next, the cord 10 is passed through the base metal fitting 8 and the clamp portion 9, and the terminal of the cord 10 is connected to a predetermined portion of the printed circuit board 5. Next, the coil case 7 is stored in the base fitting 8. Then, as described above, the upper surface of the display element 41 of the printed circuit board 5 is covered with the transparent resin 42, and the clamp portion 9 is housed in the inner wall of the base metal fitting 8 so that the printed circuit board 5 is inserted into the guide groove 37 and the holding groove 39. To form a proximity sensor. In this case, the display element 41 comes into contact with the light guide section 34 of the clamp section 9 via the transparent resin 42.

The proximity sensor thus constructed is housed in a mold and brought into a vacuum state. In this case, the insides of the proximity sensor are linear projections 22a to 22d and 21a to 21d of the coil case 7.
Air is sucked outside through the air outflow groove in the gap 21d, and the pressure inside the proximity sensor also decreases. In this state, a high-temperature filling resin is injected from the opening 43 of the clamp 9 at a low pressure, for example, 5 to 20 atm. In this way, the filled resin hits the printed circuit board 5 and is then filled in the case and spreads over the entire case. At this time, by selecting the mold temperature to an appropriate value, the proximity sensor can be configured in a short time. At this time, air flows between the linear projections 21a to 21d and 22a to 22d in the direction of arrow C in FIG. 3, but the resin injected at a low pressure hits the linear projections 21a to 21d, and as shown in FIG. Since the filler accumulates in the accumulating groove 26, the filler does not leak out of the coil case 7 and can be retained in the base fitting 8. When the resin is filled, the resin comes into contact with the end face of the ring cord 45 of the cord attaching portion 35, but since the ring cord 45 is integrally formed with the cord 10, FIG.
As shown in the front view of the three-wire cord 10 in (d), even when there is a gap between the three cables, the resin does not enter the cables.

Next, a proximity sensor according to a second embodiment of the present invention will be described. FIG. 11 is a cross-sectional view of the proximity sensor according to the second embodiment, and FIG. 12 is a longitudinal cross-sectional view in a different direction. In these figures, the same parts as those in the first embodiment described above are denoted by the same reference numerals, and detailed description is omitted. The coil portion and the coil case 7 of the proximity sensor of the present embodiment are the same as those of the first embodiment. Then, a clamp portion 61 is provided on the back surface of the base fitting 8. The clamp portion 61 according to the present embodiment includes a connecting portion 62 that is press-fitted into the base metal fitting 8 and a connector holder portion 6 that is connected to the connecting portion 62 as illustrated.
It consists of three. The connecting portion 62 is for connecting the base fitting 8 and the connector portion 63, and is formed of a cylindrical transparent or translucent resin having a step formed so that the diameter of the connector holder portion 63 is reduced as shown in the figure. It is a manufacturing member. On the other hand, the connector holder portion 63 is a two-stage cylindrical metal member having a cylindrical portion having the same diameter as the portion of the connecting portion 62 that is pressed into the base fitting 8 and a cylindrical portion having a smaller diameter. . As shown in FIG. 12, the end of the printed circuit board 5 on the side of the clamp 61 is narrowed.

FIG. 13A is a front view of the clamp portion 61, FIG. 13B is a longitudinal sectional view thereof, FIG. 14A is a bottom view thereof, and FIG. As shown in these figures, the clamp portion 61 is provided at the end of the connecting portion 62 as shown in FIG.
As shown in FIG. 7, a tapered guide groove 64 for guiding the printed circuit board is provided, and a substrate holding groove 65 is provided inside the guide groove 64. The board holding groove 65 has a width substantially equal to the thickness of the printed board 5, and has a linear projection 66 as shown in the figure. The linear projections 66 fix the printed circuit board 5 by deforming when the printed circuit board 5 is inserted. When the printed circuit board 5 is held in the board holding groove 65, one surface thereof faces the inner surface of the light guide 67. A display element 41 such as a light emitting diode is mounted at this position on the printed circuit board 5. Even in the case where a gap is generated during this time, the light of the display element 41 is guided to the light guide section 67 via the transparent resin 42 by previously raising the transparent resin 42 on the upper surface of the display element 41 as in FIG. Then, the light is emitted to the outside. Further, a band-shaped projection 68 as shown in the drawing is formed in a portion of the connecting portion 62 which is press-fitted into the base fitting 8.

As shown in FIG. 13 (b), the connector holder 63 of the clamp portion 61 is composed of a portion having the same diameter as the connecting portion 62 and a cylindrical portion for holding the connector. Is provided. A thread groove 70 is provided on the outer peripheral surface of the cylindrical portion for holding the connector. Further, as shown in FIG.
The opening 71 is provided at a position facing the back surface side of the display element 41. The opening 71 is an opening for injecting a filling resin after forming the proximity sensor as in the first embodiment. The connector 72 shown in FIGS. 11 and 12 is press-fitted into the cylindrical portion of the connector holder 63. The connector 72 is shown in FIG.
As shown in FIG. 12, it is a cylindrical member on which a plurality of pins are implanted. The connector 72 is connected to a pattern on the printed board 5 via a flexible board 73 as described later.

Next, the manufacturing process of the proximity sensor according to the present embodiment will be described. The coil 4 wound around the coil spool 3 is housed in the annular groove of the core 2 in advance. Then, the leads 4 a and 4 b at both ends of the coil 4 are connected to the printed circuit board 5. Next, the core 2 is housed in the coil case 7 in this state, and is primarily filled in advance with an epoxy-based coil portion sealing resin 51 in order to stabilize the coil characteristics in advance.
Next, the cord 10 is passed through the base fitting 8 and the clamp portion 61, and the terminal of the flexible board 73 is connected to a predetermined portion of the printed board 5. Next, the coil case 7 is stored in the base fitting 8. Then, the clamp portion 61 first manufactures the connector holder portion 63 from a metal, and inserts the metal into a predetermined mold to integrally form the connecting portion 62. Then, as described above, the upper surface of the display element 41 of the printed board 5 is covered with the transparent resin 42, and the clamp portion 61 is pressed into the inner wall of the base metal fitting 8 so that the printed board 5 is inserted into the guide groove 64 and the holding groove 65. . Next, after connecting the end of the flexible board 73 previously connected to the printed board 5 to the terminal of the connector 72, the connector 72 is press-fitted into the cylindrical portion of the connector holder 63. In this way, a proximity sensor is formed. At this time, the display element 41 comes into contact with the light guide 67 of the clamp 61 via the transparent resin 42.

The proximity sensor constructed as described above is housed in a mold and brought into a vacuum state. In this case, the insides of the proximity sensor are linear projections 22a to 22d and 21a to 21d of the coil case 7.
Air is sucked outside through the air outflow groove in the gap 21d, and the pressure inside the proximity sensor also decreases. In this state, a high-temperature filling resin is injected from the opening 71 of the clamp portion 61 at a low pressure, for example, 5 to 20 atm. In this way, the filling resin hits the printed circuit board 5 and then fills the case.
Also, the whole case will be covered. At this time, by selecting the mold temperature to an appropriate value, the proximity sensor can be configured in a short time. At this time, air flows between the linear projections 21a to 21d and 22a to 22d in the direction of arrow C in FIG. 3, but the resin injected at a low pressure hits the linear projections 21a to 21d, and as shown in FIG. Since the filler accumulates in the accumulating groove 26, the filler does not leak out of the coil case 7 and can be retained in the base fitting 8.

According to the present embodiment, since the connecting portion 62 is integrally formed with the resin at the connector connecting portion of the clamp portion, it is more accurate than the conventional example in which the clamp portion and the connector are connected by using rubber packing. The connecting portion can be formed, and an effect that variation in press-fitting is reduced is obtained. Further, since the printed board is held by the board holding portion 65, the printed board does not tilt or bend, and the electronic components are not broken. Furthermore, since the light guide is provided in the connecting portion, the light of the display element is guided to the outside. For this reason, it is not necessary to newly connect a light guide member for light guide to the case, and assembly can be performed easily.

Although the first and second embodiments have been described with reference to the proximity sensor, the present invention is applicable to various kinds of electronic devices in which a cord is drawn out or a connector is connected. Is possible.

[0029]

As described in detail above, according to the first to third aspects of the present invention, since the cord mounting portion is provided in the clamp portion, the cord does not bend after resin filling of the cord, and the printed circuit board is not bent. Since the holding portion is provided, the printed board does not bend or tilt, and an effect that the electronic component is not broken can be obtained. Furthermore, since the light guide portion for guiding the light of the operation indicator light to the outside of the case is formed in the clamp portion, a separate light guide portion may be provided in the case, or the operation indicator light may be formed without using a transparent resin as the filling resin. The visibility will be improved. According to the fourth aspect of the present invention, since the ring cord is formed on the cord, there is obtained an effect that there is no possibility that the resin enters the cord when the resin is injected.
Also, the end of the cord can be fixed to an arbitrary shape. According to the fifth aspect of the invention, in addition to the effects of the first to third aspects, the effect of reducing the variation in the press-in force even when a connector is connected to the clamp portion can be obtained.

[Brief description of the drawings]

FIG. 1 is an assembly configuration diagram of a proximity sensor according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the proximity sensor according to the embodiment.

3A is a side view of a coil case of the proximity sensor according to the embodiment, and FIG. 3B is a longitudinal sectional view thereof.

FIG. 4 is a sectional view taken along line AA of the coil case according to the embodiment.

FIG. 5 is a sectional view taken along line BB of the coil case according to the embodiment.

FIG. 6A is a front view of a clamp unit according to the present embodiment,
(B) is a side view thereof.

FIG. 7A is a bottom view of the clamp unit according to the embodiment;
(B) is a back view thereof.

FIG. 8 is a longitudinal sectional view of a clamp unit according to the embodiment.

9A is a perspective view showing a cord, FIG. 9B is a perspective view showing a ring cord according to the present embodiment, and FIGS. 9C and 9D are front views thereof.

FIGS. 10A and 10B are assembly diagrams of a core and a coil housed in a coil case.

FIG. 11 is a sectional view (part 1) of a proximity sensor according to a second embodiment of the present invention.

FIG. 12 is a sectional view (part 2) of a proximity sensor according to a second embodiment of the present invention.

13A is a front view of a clamp unit according to the present embodiment, and FIG. 13B is a longitudinal sectional view thereof.

14A is a bottom view of the clamp unit according to the present embodiment, and FIG. 14B is a rear view thereof.

FIG. 15 is a cross-sectional view illustrating an example of a conventional proximity sensor.

FIG. 16 is a cross-sectional view showing another example of a conventional proximity sensor.

[Explanation of symbols]

 1, 60 Proximity sensor 2 Core 3 Coil spool 4 Coil 5 Printed circuit board 6 Shielding film 7 Coil case 8 Base fitting 9, 61 Clamp section 10 Code 21a to 21d First linear projection 22a to 22d Second linear projection 23a -23d, 24a-24d Projection 25a-25d Notch 26 Resin leakage prevention groove 31 Cylindrical portion 32, 68 Band-like projection 33 Flange 34 Light guide 34a Reflective surface 35 Cord attachment 35a Ring cord holder 35b Code holder 36 Opening 37 Guide groove 38 Taper section 39 Substrate holding groove 40 Linear projection 41 Display element 43 Opening 45 Ring cord 62 Connecting section 63 Connector holder section 64 Guide groove 65 Substrate holding groove 66 Linear projection 67 Light guide section 69 Collar opening 71 72 Connector 73 Flexible board

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-349392 (JP, A) JP-A-6-77802 (JP, A) JP-A-63-110520 (JP, A) 26940 (JP, U) Fully open, 64-55621 (JP, U) Fully open, 61-100831 (JP, U) Fully open, 54-144274 (JP, U) Fully open, 62-91328 (JP, U) Japanese Utility Model No. 3-91626 (JP, U) Japanese Utility Model 63-128637 (JP, U) Japanese Utility Model 58-117041 (JP, U) Japanese Utility Model 5-6625 (JP, U) Japanese Utility Model No. 4-16845 (JP, U) Japanese Utility Model Showa 61-167346 (JP, U) Japanese Utility Model Showa 63-112730 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01H 9/00-9 / 28

Claims (5)

(57) [Claims] 1. An electronic device having a clamp attached to one end of a case, the clamp comprising: a board guide for guiding a printed board; and a printed board inserted along the board guide. An electronic device, comprising: a substrate holding unit for holding; and a light guide unit for guiding light of a display element mounted on a printed circuit board held by the substrate holding unit to the outside. 2. An electronic apparatus having a clamp attached to one end of a case, wherein the clamp comprises a board guide for guiding a printed board, and a printed board inserted along the board guide. A substrate holding unit for holding, a light guide unit for guiding light of a display element mounted on a printed board held by the substrate holding unit to the outside, and a light guide unit provided corresponding to a back surface side of the display element of the printed board. And an opening for resin filling. 3. An electronic device having a clamp unit attached to one end of a case, wherein the clamp unit comprises: a light guide unit configured to groove light of a display element mounted on a printed circuit board to the outside; An electronic device, comprising: a resin filling opening provided to face a back surface side of a display element of a printed circuit board. 4. An electronic device having a clamp attached to one end of a case, wherein a connection-side end of a cord attached to the electronic device has a ring cord integrally formed with the cord. The clamp portion includes: a ring cord holding portion that holds a ring cord integrally formed with the cord; and a cord holding portion provided behind the ring cord holding portion and having the same inner diameter as the cord. An electronic device, comprising: 5. The clamp according to claim 1, wherein the clamp has a connector holder for holding a connector, and a connecting part integrally formed with the connector holder using a transparent resin. Electronic equipment according to the item.