JP6793342B2 - Electronic circuit unit and electrical equipment - Google Patents

Description

The present invention relates to an electronic circuit unit and an electric device, and more particularly to an electronic circuit unit having a printed circuit board and an electric device provided with the electronic circuit unit.

Conventionally, printed circuit boards have been used in various electronic circuit units. The printed circuit board is a board (printed wiring board) forming a circuit composed of printed wiring, printed parts, and / or mounted parts (see Japanese Industrial Standards C5603 printed circuit terminology). The mounted components that make up the printed circuit include surface mount components that are directly mounted on the conductor that forms the printed wiring, and leads that are inserted into the through holes from the component side of the printed wiring board and solder to the conductor on the solder surface. There are through-hole mount components that are joined. Further, the printed wiring board includes a single-sided printed wiring board in which printed wiring (conductor) is formed on only one side, and a double-sided printed wiring board in which printed wiring (conductor) is formed on both sides. Further, the material of the insulating substrate constituting the printed wiring board includes a glass cloth base epoxy resin and a paper base phenol resin.

Here, Patent Document 1 has a print capable of improving the insertability of the lead of the insertion mounting component into the through hole and holding the lead between the time of being inserted into the through hole and the time of solder joining. The wiring board and the mounting structure (printed circuit board) are described.

The printed wiring board described in Patent Document 1 includes a plate-shaped base material provided with a first through hole and a second through hole, and a lead insertion component (insertion mounting component). The first through hole is a round hole into which the lead of the lead insertion component can be inserted. The second through hole is an elongated hole whose width dimension in the lateral direction is smaller than the diameter of the reed, and is connected to the first through hole at one end in the longitudinal direction thereof.

The lead insertion component is held by the printed wiring board by inserting the lead into the first through hole of the two through holes and then press-fitting the lead into the second through hole. Then, solder bonding is performed on the printed wiring board in this state using a solder flow tank or a soldering iron, and lead insertion components are inserted and mounted on the printed wiring board.

Japanese Unexamined Patent Publication No. 2010-3818

By the way, when the printed wiring board in the conventional example described in Patent Document 1 is a double-sided printed wiring board and the through hole is a plating through hole, the through hole plating may be damaged by the lead. That is, when the lead inserted into the first through hole is press-fitted into the second through hole, the through-hole plating formed on the wall surface of the first through hole and the second through hole receives from the lead. It may be damaged by external force. If the through-hole plating is damaged, the mounting quality of the insert mounting component may deteriorate.

An object of the present invention is to provide an electronic circuit unit and an electric device capable of improving the mounting quality of a through-hole mounting component.

The electronic circuit unit according to one aspect of the present invention includes a circuit board made of a double-sided printed wiring board having a plurality of through holes, and a plurality of components mounted on the circuit board. At least one of the plurality of components is a through-hole mounting component having a plurality of leads including a first lead and a second lead. The circuit board has an insulating substrate, a first conductor formed on the first surface of the insulating substrate, and a second surface of the insulating substrate opposite to the first surface. It has a conductor. The circuit board includes a first through hole through which the first lead is inserted through the insulating substrate and a second through hole through which the second lead is inserted through the insulating substrate. have. In the circuit board, the minimum width of the gap between the wall surface of the second through hole and the second lead is smaller than the minimum width of the gap between the wall surface of the first through hole and the first lead. It is configured to do. The first through hole is a plating through hole that is electrically connected to the first conductor and the second conductor. The second through hole is a plated through hole or a plain hole that is electrically connected to the first conductor without being electrically connected to the second conductor.

The electronic circuit unit according to one aspect of the present invention includes a circuit board made of a double-sided printed wiring board having a plurality of through holes, and a plurality of components mounted on the circuit board. At least one of the plurality of components is a through-hole mounting component having a plurality of leads including a first lead, a second lead, and a third lead. The circuit board has an insulating substrate, a first conductor formed on the first surface of the insulating substrate, and a second surface of the insulating substrate opposite to the first surface. It has a conductor. The circuit board includes a first through hole through which the first lead is inserted through the insulating substrate and a second through hole through which the second lead is inserted through the insulating substrate. have. The circuit board has a third through hole through which the third lead is inserted through the insulating substrate. The circuit board is configured to arrange the third through hole between the first through hole and the second through hole. In the circuit board, the minimum width of the gap between the wall surface of the third through hole and the third lead is smaller than the minimum width of the gap between the wall surface of the first through hole and the first lead. It is configured to do. In the circuit board, the minimum width of the gap between the wall surface of the third through hole and the third lead is smaller than the minimum width of the gap between the wall surface of the second through hole and the second lead. It is configured to do. The first through hole is a plated through hole that is electrically connected to the first and second conductors. The second through hole is a plated through hole that is electrically connected to the first and second conductors. The third through hole is a plain hole.

The electric device according to one aspect of the present invention includes the electronic circuit unit and a housing for accommodating the electronic circuit unit.

The electronic circuit unit and the electric device of the present invention have an effect that the mounting quality of the through-hole mounting component can be improved.

FIG. 1 is a cross-sectional view of a main part of an electronic circuit unit according to an embodiment of the present invention. FIG. 2A is a front view of a main part showing a second conductor of a circuit board in the same electronic circuit unit. FIG. 2B is a perspective view of a main part of the same circuit board in which the second conductor is omitted and the first conductor is illustrated. FIG. 3 is a cross-sectional view of a main part of a modified example of the electronic circuit unit of the above. FIG. 4 is a plan view of a main part of another modification of the same electronic circuit unit. FIG. 5 is a plan view of a main part of still another modification of the electronic circuit unit of the above. FIG. 6A is a front view of a light emitting element corresponding to a through-hole mounting component. FIG. 6B is a plan view of the light emitting element of the same. FIG. 6C is a right side view of the light emitting element of the same. FIG. 6D is a plan view of a main part of the electronic circuit unit including the light emitting element of the same. FIG. 7A is a front view of a light receiving element corresponding to a through-hole mounting component. FIG. 7B is a right side view of the light receiving element of the same. FIG. 7C is a rear view of the light receiving element of the same. FIG. 8 is a plan view of a main part of the electronic circuit unit including the light receiving element of the same. FIG. 9 is a cross-sectional view of a main part of the electronic circuit unit according to another embodiment of the present invention. FIG. 10 is an exploded perspective view of a luminaire equipped with the same electronic circuit unit. FIG. 11A is a front view of the same lighting fixture. FIG. 11B is a plan view of the lighting fixture of the same. FIG. 11C is a left side view of the same lighting fixture. FIG. 12 is a perspective view of the emergency lighting device in the same lighting fixture. 13A is a front view of the emergency lighting device of the same as above. FIG. 13B is a plan view of the above-mentioned emergency lighting device. FIG. 13C is a right side view of the above-mentioned emergency lighting device. FIG. 14A is a rear view of the same emergency lighting device. FIG. 14B is a bottom view of the above-mentioned emergency lighting device. FIG. 15 is an exploded perspective view of the above-mentioned emergency lighting device. FIG. 16 is a cross-sectional view of the above-mentioned emergency lighting device. FIG. 17 is an exploded perspective view of the above-mentioned emergency lighting device. FIG. 18 is an exploded perspective view of an emergency light source unit in the same lighting fixture and a control device corresponding to an electric device according to an embodiment of the present invention. FIG. 19 is an exploded perspective view of the emergency power supply unit in the same lighting fixture. FIG. 20 is an exploded perspective view of the same lighting fixture with a part omitted.

<Embodiment of Electronic Circuit Unit>
An embodiment of the electronic circuit unit according to the present invention will be described in detail with reference to FIGS. 1 and 2. The configuration described in the following embodiments is only an example of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made depending on the design and the like as long as the effects of the present invention can be achieved.

The electronic circuit unit 9 of the present embodiment includes a circuit board 90 made of a double-sided printed wiring board having a plurality of through holes, and a plurality of components mounted on the circuit board 90. At least one of the plurality of components is a through-hole mounting component 95 having a first lead 951 and a second lead 952. The insertion mounting component 95 has a relatively narrow allowable range for variations in arrangement with respect to the circuit board 90, for example, the mounting position with respect to the circuit board 90 and the mounting direction when viewed from the thickness direction of the circuit board 90. It is a part. Examples of such through-hole mounting components 95 include connectors and optical electronic components (light emitting elements such as light emitting diodes, light receiving elements for infrared communication, and the like).

As shown in FIG. 1, the circuit board 90 has an insulating substrate (metal-clad substrate) 900 having a metal foil (for example, copper foil) on the first surface 901 and the second surface 902. A conductor pattern composed of the first conductor 91 is formed on the first surface 901 of the insulating substrate 900. Further, a conductor pattern made of a second conductor 92 is formed on the second surface 902 of the insulating substrate 900. Further, a non-conductor pattern made of solder resist 903 is formed on the first surface 901 and the second surface 902. Here, the first and second conductors 91 and 92 are metal foils forming a conductor pattern among the metal foils on the first surface 901 and the second surface 902 of the insulating substrate 900. That is, even if the metal foils on the first surface 901 and the second surface 902 of the insulating substrate 900 are not included in the metal foils forming the conductor pattern, the first and second conductors 91 and 92 do not include the metal foils.

The circuit board 90 further has a plurality of through holes 93 penetrating the insulating substrate 900. Of the plurality of through holes 93, the through hole into which the first lead 951 of the insertion mounting component 95 is inserted is called the first through hole 931, and the through hole into which the second lead 952 of the insertion mounting component 95 is inserted is called the first through hole 931. May be referred to as a second through hole 932. The first and second through holes 931 and 932 are both plated through holes. However, the through-hole plating 94 of the first through-hole 931 may be referred to as the first through-hole plating 941, and the through-hole plating 94 of the second through-hole 932 may be referred to as the second through-hole plating 942. The first and second through holes 931 and 932 are formed so that the openings on the first surface 901 and the second surface 902 are circular (see FIG. 1). However, the hole diameter (diameter) φ2 of the second through hole 932 is smaller than the hole diameter φ1 of the first through hole 931 (φ2 <φ1).

The first through-hole plating 941 is connected to a land 904 that is electrically connected to the first and second conductors 91 and 92 on the first surface 901 and the second surface 902 (see FIG. 1). On the other hand, the second through-hole plating 942 is connected to the land 905 on the first surface 901 and the second surface 902. However, the land 905 on the second surface 902 is not electrically connected to the second conductor 92 (conductor pattern) (see FIG. 2A). This means that the second lead 952 of the through-hole mounting component 95 needs to be electrically connected to the first conductor 91, but not to the second conductor 92. Means. Therefore, the second through hole 932 does not necessarily have to be a plated through hole, and may be a plain hole which is a through hole without through hole plating. FIG. 2A is a front view of a main part of the circuit board 90 (a part including a part where the through-hole mounting component 95 is inserted and mounted) as viewed from the second surface 902 side. On the other hand, FIG. 2B is a perspective view showing the first conductor 91 when the main part is viewed from the second surface 902 side.

The first and second leads 951 and 952 are formed of a metal material in a substantially square columnar shape with the portions corresponding to the four sides as R surfaces. The first lead 951 and the second lead 952 are formed to have the same shape and dimensions (see FIG. 1). The first lead 951 is inserted into the first through hole 931 from the second surface 902 side. The second lead 952 is inserted into the second through hole 932 from the second surface 902 side. The tip portion of the first lead 951 projecting from the first through hole 931 to the first surface 901 side is joined to the land 904 of the first surface 901 by the solder 906. That is, the first lead 951 is electrically connected to the first and second conductors 91 and 92 via the land 904 and the solder 906. Similarly, the tip portion of the second lead 952 projecting from the second through hole 932 toward the first surface 901 side is joined to the land 905 of the first surface 901 by the solder 907. However, since the land 905 connected to the second through-hole plating 942 is not electrically connected to the second conductor 92, the second lead 952 is only the first conductor 91 via the land 905 and the solder 907. Is electrically connected to.

Here, the diagonal length LA on the bottom surface (tip surface) of the first and second leads 951 and 952 is smaller than the hole diameters φ1 and φ2 of the first and second through holes 931 and 932, respectively ( (See FIG. 1). Therefore, a gap is formed between the wall surfaces of the first and second through holes 931 and 932 and the side surfaces of the first and second leads 951 and 952, respectively. The minimum width of each gap is equal to the difference (φ1-LA, φ2-LA) between the hole diameters φ1 and φ2 and the diagonal length LA. However, since the hole diameter φ2 is smaller than the hole diameter φ1, the minimum width (φ2-LA) of the gap between the second lead 952 and the second through hole 932 is set to the first lead 951 and the first through hole 931. It becomes smaller (narrower) than the minimum width (φ1-LA) of the gap.

Therefore, when the insertion mounting component 95 is inserted and mounted on the circuit board 90, it is highly possible that the edge of the tip of the first lead 951 hits the first through-hole plating 941 and damages the first through-hole plating 941. Low. On the other hand, the possibility that the edge of the tip of the second lead 952 hits the second through-hole plating 942 is higher than the possibility that the edge of the tip of the first lead 951 hits the first through-hole plating 941. However, in the second lead 952, the tip portion protruding toward the first surface 901 may be electrically connected to the first conductor 91. Therefore, even if the second through-hole plating 942 is scratched, the reliability of the electrical connection between the second lead 952 and the first conductor 91 does not decrease. As a result, the electronic circuit unit 9 can improve the mounting quality of the through-hole mounting component 95 as compared with the conventional example. Further, the displacement amount of the insertion mounting component 95 with respect to the circuit board 90 is suppressed as compared with the case where the hole diameter φ2 of the second through hole 932 is equal to the hole diameter φ1 of the first through hole 931. Therefore, the electronic circuit unit 9 can improve the accuracy of the position and direction of the through-hole mounting component 95 with respect to the circuit board 90.

By the way, the minimum width of the gap between the second through hole 932 and the second lead 952 may be zero. That is, the four sides (R surfaces) of the second lead 952 may come into contact with the second through-hole plating 942. Further, the shapes of the first and second leads 951 and 952 are not limited to the square columnar shape. In the first and second leads 951 and 952, even if the shape seen from the insertion direction into the first and second through holes 931 and 932 is a triangle or a polygon of pentagon or more, or a circle or an ellipse. It doesn't matter.

Further, the first and second leads 951 and 952 are not limited to the prismatic shape. For example, as shown in FIG. 3, the first and second leads 951 and 952 may be cylindrical and a part thereof may be formed into a flattened shape by crushing. In this case, the width dimension LB of the flattened portions 951A and 952A of the first and second leads 951 and 952 should be smaller than the hole diameters φ1 and φ2 of the first and second through holes 931 and 932, respectively. Just do it. However, the width dimension LB of the flattened portion 952A in the second lead 952 may be substantially equal to the hole diameter φ2 of the second through hole 932 (see FIG. 3).

By the way, the number of leads included in the through-hole mounting component 95 is not limited to two. For example, as shown in FIG. 4, the through-hole mounting component 95 may have 12 leads arranged in rows of 6 in each of the left-right directions and arranged in 2 rows in the vertical direction. In the through-hole mounting component 95, of the six leads included in the first row (upper row in FIG. 4), the two leads at both ends and the two leads in the center correspond to the first lead 951. The remaining two leads correspond to the second lead 952. Further, in the through-hole mounting component 95, of the six leads included in the second row (lower row in FIG. 4), the two leads at both ends correspond to the second leads 952, and the rest excluding both ends. The four leads correspond to the first lead 951.

On the other hand, the circuit board 90 has 12 through holes 93 arranged in two rows (first row and second row) of six each. Of the six through holes 93 included in the first row (upper row in FIG. 4), the two through holes 93 at both ends and the two through holes 93 in the center correspond to the first through hole 931. The remaining two through holes 93 correspond to the second through hole 932. Further, of the six through holes 93 included in the second row (lower row in FIG. 4), the two through holes 93 at both ends correspond to the second through holes 932, and the remaining four through holes excluding both ends. Through hole 93 corresponds to the first through hole 931. However, since the hole diameter of the second through hole 932 is substantially equal to the diagonal length of the lead, the second lead 952 is in contact with the wall surface of the second through hole 932.

As described above, since the circuit board 90 is configured to arrange the second through hole 932 at each end of each row, the mounting position and mounting direction of the insertion mounting component 95 having a large number of leads It is possible to reduce the variation. However, the second through hole 932 is not limited to the literal end of the row, and may be arranged at a position closer to the end than the center of the row.

Further, as shown in FIG. 5, the through-hole mounting component 95 may have 17 leads arranged in three rows of 6, 6, and 5. In the through-hole mounting component 95, of the six leads included in the first row (upper row in FIG. 5), four leads excluding the two central leads correspond to the first lead 951. The two leads in the center correspond to the second lead 952. Further, in the through-hole mounting component 95, of the six leads included in the second row (middle row in FIG. 5), one lead in the center corresponds to the second lead 952, and the remaining five leads. The lead corresponds to the first lead 951. Further, in the through-hole mounting component 95, of the five leads included in the third row (lower row in FIG. 5), one lead in the center corresponds to the second lead 952, and the remaining four leads. The lead corresponds to the first lead 951.

On the other hand, the circuit board 90 has 17 through holes 93 arranged in three rows (first row, second row, and third row) of 6, 6, and 5. Of the six through-holes 93 included in the first row (upper row in FIG. 5), four through-holes 93 excluding the two central through-holes 93 correspond to the first through-hole 931. The two central through holes 93 correspond to the second through holes 932. Further, of the six through holes 93 included in the second row (middle row in FIG. 5), one through hole 93 in the center corresponds to the second through hole 932, and the remaining five through holes 93 corresponds to the first through hole 931. Further, of the five through holes 93 included in the third row (lower row in FIG. 5), one through hole 93 in the center corresponds to the second through hole 932, and the remaining four through holes 93 corresponds to the first through hole 931. However, since the hole diameter of the second through hole 932 is substantially equal to the diagonal length of the lead, the second lead 952 is in contact with the wall surface of the second through hole 932.

As described above, since the circuit board 90 is configured to arrange the second through hole 932 in the center of each row, the mounting position and mounting direction of the insertion mounting component 95 having a large number of leads It is possible to reduce the variation. Moreover, since the second through-hole 932 having a small hole diameter is arranged in the center of each row, the operator holds the central portion in the longitudinal direction of the insertion mounting component 95 in his hand and first in each through-hole 93. And the second leads 951 and 952 can be inserted. Therefore, the first and second leads 951 and 952 are inserted into each through hole 93 as compared with the case where the circuit board 90 is configured so that the second through hole 932 is arranged at the end of each row. Workability can be improved.

As an example of the through-hole mounting component, a light emitting element (light emitting diode) 96 will be illustrated. As shown in FIGS. 6A to 6C, the light emitting element 96 has a box-shaped main body 960 containing a light emitting diode chip inside, and four prismatic terminals protruding from four corners on the bottom surface of the main body 960. doing. The four terminals are a first anode terminal 961, a first cathode terminal 962, a second anode terminal 963, and a second cathode terminal 964. The first anode terminal 961 and the first cathode terminal 962 are arranged diagonally on the bottom surface of the main body 960, and the second anode terminal 963 and the second cathode terminal 964 are another pair on the bottom surface of the main body 960. It is located at the corner.

On the other hand, the circuit board 90 is provided with four through holes 93 for inserting and mounting the light emitting element 96 (see FIG. 6D). Of the four through holes 93, the two through holes 93 into which the first anode terminal 961 and the first cathode terminal 962 are inserted correspond to the first through hole 931. Further, of the four through holes 93, the two through holes 93 into which the second anode terminal 963 and the second cathode terminal 964 are inserted correspond to the second through holes 932. That is, in the light emitting element 96, the first anode terminal 961 and the first cathode terminal 962 correspond to the first lead, and the second anode terminal 963 and the second cathode terminal 964 correspond to the second lead.

By inserting each of the second anode terminal 963 and the second cathode terminal 964 into the second through hole 932, it is possible to suppress variations such as the inclination of the optical axis of the light emitting element 96 with respect to the circuit board 90. The number and arrangement of the second through holes 932 in the four through holes 93 are not limited to the arrangement shown in FIG. 6D.

As another example of the through-hole mounting component, a light receiving element (infrared remote control light receiving unit) 97 will be illustrated. As shown in FIGS. 7A to 7C, the light receiving element 97 has a box-shaped main body 970 containing a photodiode chip, an amplifier, and the like inside, and five prismatic terminals protruding from the bottom surface of the main body 970. Have. The five terminals are a first ground terminal 971, an output terminal 972, a power supply terminal 973, a second ground terminal 974, and a third ground terminal 975. The first ground terminal 971, the output terminal 972, and the power supply terminal 973 are arranged in a line on one end side of the bottom surface of the main body 970 in the longitudinal direction along the lateral direction of the main body 970. Further, the second ground terminal 974 and the third ground terminal 975 are arranged at both ends of the main body 970 in the lateral direction on the other end side of the bottom surface of the main body 970 in the longitudinal direction (see FIG. 7C).

On the other hand, the circuit board 90 is provided with five through holes 93 for inserting and mounting the light receiving element 97 (see FIG. 8). Of the five through holes 93, the three through holes 93 into which the output terminal 972, the power supply terminal 973, and the second ground terminal 974 are inserted correspond to the first through hole 931. Further, the two through holes 93 into which the first ground terminal 971 and the third ground terminal 975 are inserted correspond to the second through hole 932. That is, in the light receiving element 97, the output terminal 972, the power supply terminal 973, and the second ground terminal 974 correspond to the first lead, and the first ground terminal 971 and the third ground terminal 975 correspond to the second lead.

By inserting each of the first ground terminal 971 and the third ground terminal 975 into the second through hole 932, it is possible to suppress variations such as the inclination of the optical axis of the light receiving element 97 with respect to the circuit board 90. The number and arrangement of the second through holes 932 in the five through holes 93 are not limited to the arrangement shown in FIG.

<Another Embodiment of Electronic Circuit Unit>
Another embodiment of the electronic circuit unit according to the present invention will be described with reference to FIG. However, the components common to the embodiment shown in FIG. 1 are designated by the same reference numerals and description thereof will be omitted as appropriate.

As shown in FIG. 9, the electronic circuit unit 9 of the present embodiment has a circuit board 90 made of a double-sided printed wiring board having a plurality of through holes 93, and a plurality of components mounted on the circuit board 90. There is. At least one component of the plurality of components is a through-hole mounting component having a plurality of leads including a first lead 981, a second lead 982, and a third lead 983.

The circuit board 90 has a first through hole 931 into which the first lead 981 is inserted, a second through hole 932 into which the second lead 982 is inserted, and a third through hole 932 into which the third lead 983 is inserted. It has a through hole 933 and. In addition, unlike the configuration shown in FIG. 1, the second through hole 932 is electrically connected not only to the first conductor 91 of the first surface 901 but also to the second conductor 92 of the second surface 902. ing. Further, the third through hole 933 is a plain hole having no through hole plating on the wall surface. Further, the third through hole 933 is arranged between the first through hole 931 and the second through hole 932 on the circuit board 90.

Here, the hole diameter φ1 of the first through hole 931 and the hole diameter φ2 of the second through hole 932 are equal to each other, and the hole diameter φ3 of the third through hole 933 is the other two hole diameters φ1 and φ2. Smaller than That is, the circuit board 90 sets the minimum width of the gap between the wall surface of the third through hole 933 and the third lead 983, the wall surface of the first and second through holes 931, 932, and the first and second leads. It is configured to be smaller than the minimum width of the gap between 981 and 982.

Therefore, when the insertion mounting component 98 is inserted and mounted on the circuit board 90, the insertion mounting component 98 is positioned with respect to the circuit board 90 by the third lead 983 inserted into the third through hole 933. Therefore, it is highly possible that the edges of the tips of the first and second leads 981 and 982 hit the first and second through-hole platings 941 and 942 and damage the first and second through-hole platings 941 and 942. Low. Moreover, unlike the first and second leads 981 and 982, the third lead 983 does not contribute to the electrical connection between the through-hole mounting component 98 and the first and second conductors 91 and 92. Therefore, even if the edge of the tip of the third lead 983 hits the third through hole 933, the electrical connection between the first and second leads 981 and 982 and the first and second conductors 91 and 92. The reliability of is not reduced. As a result, the electronic circuit unit 9 can improve the mounting quality of the through-hole mounting component 98 as compared with the conventional example. Further, since the amount of displacement of the through-hole mounting component 98 with respect to the circuit board 90 is suppressed, the electronic circuit unit 9 can improve the accuracy of the position and direction of the through-hole mounting component 98 with respect to the circuit board 90.

By the way, the minimum width of the gap between the third through hole 933 and the third lead 983 may be zero. That is, the four sides (R surfaces) of the third lead 983 may come into contact with the wall surface of the third through hole 933. Further, the shapes of the first to third leads 981 to 983 are not limited to the square columnar shape. In the first to third leads 981 to 983, even if the shape seen from the insertion direction into the first to third through holes 931 to 933 is a triangle, a polygon of pentagon or more, or a circle or an ellipse. It doesn't matter.

Further, the first to third leads 981 to 983 are not limited to the prismatic shape. For example, the first to third leads 981 to 983 may be cylindrical and a part thereof may be formed into a flattened shape by crushing. Alternatively, the first to third leads 981 to 983 may be formed in a columnar shape.

<Electrical device embodiment>
An embodiment of an electric device according to the present invention will be described with reference to FIGS. 10 to 20. The electric device of the present embodiment is included in the emergency lighting device 3 included in the regular / emergency combined type lighting fixture 1. Specifically, the control device 6 included in the emergency lighting device 3 corresponds to the electrical device of the present embodiment. However, the control device 6 is only an example of an electric device, and it is possible to apply the technical idea of the present invention to an electric device other than the control device 6.

As shown in FIGS. 10 and 11A to 11C, the lighting fixture 1 includes a regular lighting device 2 for performing regular lighting, an emergency lighting device 3 for performing emergency lighting, a regular lighting device 2, and an emergency lighting device 3. It is provided with an instrument main body 10 for accommodating. In the following description, unless otherwise specified, the vertical, horizontal, and front-back directions of the luminaire 1 are defined in the directions shown in FIG.

The instrument body 10 is formed of a metal material into a long box shape. The instrument main body 10 has a long rectangular flat plate-shaped top plate 11 and a pair of first side plates 12 protruding downward from each of the two end edges along the longitudinal direction (left-right direction) of the top plate 11. doing. The instrument main body 10 further has a pair of second side plates 13 projecting downward from each of the two end edges along the lateral direction (front-back direction) of the top plate 11. Further, the instrument body 10 has an opening on the lower surface facing the top plate 11. The top plate 11 has a hole 110 for passing an electric wire at substantially the center in the left-right direction thereof. Further, the top plate 11 has holes 111 for passing suspension bolts at positions near both ends in the left-right direction thereof (see FIG. 10). Further, a terminal block 14 to which an electric wire drawn from the hole 110 is connected is attached to the lower surface of the top plate 11.

The regular lighting device 2 includes a regular light source, a mounting member 21 to which the regular light source is attached, a translucent cover 20 that covers the regular light source, and a power supply device that lights the regular light source. A common light source has a long substrate and a large number of LEDs (light emitting diodes) mounted on the surface of the substrate. The mounting member 21 is formed of a metal material in the shape of a long gutter. The mounting member 21 has a bottom plate formed in the shape of a long rectangular plate, and a pair of side plates 210 that rise upward from both ends in the lateral direction (front-back direction) of the bottom plate. The common light source is mounted on the lower surface of the bottom plate of the mounting member 21. The power supply device is configured to convert AC power supplied from a regular power source (for example, a commercial AC power source) via a terminal block 14 into DC power. The power supply device is mounted on the upper surface of the bottom plate of the mounting member 21. The common light source and the power supply device are electrically connected by an electric wire inserted into an insertion hole provided in the bottom plate. A common light source is turned on by supplying DC power from a power supply device via an electric wire.

The translucent cover 20 is formed in a long box shape having an open upper surface made of a translucent synthetic resin material such as acrylic resin or polycarbonate resin. The lower surface of the translucent cover 20 is formed in a curved shape that gently projects downward from both ends toward the center in the lateral direction (front-rear direction) (see FIG. 10). A diffusing material is mixed in the synthetic resin material forming the translucent cover 20. That is, the light emitted from the common light source is diffused when passing through the translucent cover 20.

In the normal lighting device 2, a portion other than the translucent cover 20 (a pair of side plates 210 of the mounting member 21, a power supply device, etc.) is housed in the fixture body 10, and the translucent cover 20 projects downward from the opening of the fixture body 10. It is attached to the instrument body 10 in such a manner (see FIGS. 11A to 11C). Further, the regular lighting device 2 is detachably attached to the fixture main body 10 so as to close most of the opening of the fixture main body 10 with the translucent cover 20 (see FIGS. 11A to 11C). Here, the fixture main body 10 forms a space (dead space) between the mounting member 21 of the regular lighting device 2 and the top plate 11. Then, the power supply device of the regular lighting device 2 is arranged in the dead space of the fixture main body 10. However, since the structure in which the regular lighting device 2 is detachably attached to the fixture main body 10 is well known in the past, detailed description and illustration thereof will be omitted.

Next, the emergency lighting device 3 will be described in detail with reference to the drawings.

The emergency lighting device 3 includes an emergency light source unit 4, an emergency power supply unit 5, a control device 6, a cover 7, and a holding tool 8 (see FIGS. 10 to 17).

As shown in FIGS. 16 and 17, the emergency light source unit 4 includes an LED module 40, a holder 41, a pair of terminal plates 42, a heat radiating sheet 43, and a lens 44. The LED module 40 is configured by mounting at least one LED chip in the center of a rectangular flat plate-shaped mounting substrate 400. The LED chip is preferably, for example, a blue light emitting diode that emits blue light. Further, the mounting surface (lower surface) of the mounting substrate 400 including the LED chip is sealed with a sealing resin 401 mixed with a fluorescent substance that converts the wavelength of blue light emitted from the LED chip (see FIG. 17). .. Further, the mounting substrate 400 has electrodes on the lower surfaces of the pair of corner portions at diagonal positions thereof. One electrode is electrically connected to the cathode of the LED chip and the other electrode is electrically connected to the anode of the LED chip. Further, these two electrodes are electrically connected to the corresponding terminal plate 42 of the pair of terminal plates 42.

The lens 44 is made of glass, for example, and has a lens main body 440 and an annular outer collar portion 441 that projects outward from the peripheral edge of the lens main body 440 (see FIG. 17). The lens 44 is preferably a wide-angle light distribution lens that has an aspherical shape of an entrance surface 442 and an exit surface 443 (see FIG. 16) and realizes a so-called batwing-like light distribution characteristic. However, the lens 44 may be formed of a synthetic resin material (for example, polycarbonate resin or the like) whose heat resistance (flame retardancy) is improved by mixing glass fibers.

The heat radiating sheet 43 is preferably made of a sheet material made of a silicone resin having high thermal conductivity, electrical insulation and flame retardancy. The heat radiating sheet 43 is in contact with the upper surface of the mounting board 400 of the LED module 40.

The holder 41 is preferably formed of a synthetic resin material such as a polycarbonate resin in a substantially rhombus shape when viewed from above and below (see FIG. 17). The holder 41 holds the LED module 40 and the lens 44 so that the lens body 440 of the lens 44 is overlapped on the light emitting surface (lower surface) of the LED module 40. Further, the holder 41 has a terminal plate holding portion 410. The terminal plate holding portion 410 is formed in a square tubular shape extending upward, and houses and holds a pair of terminal plates 42 inside (see FIGS. 16 and 17).

As shown in FIG. 19, the emergency power supply unit 5 includes a plurality of dry battery type storage batteries (five in the illustrated example), a case 51 made of a synthetic resin material accommodating the plurality of storage batteries 50, and a first conductor. It includes 54 and a second conductor 55. The case 51 has a case body 52 and a case cover 53. The case body 52 has a rectangular bottom wall 520 and a pair of first side walls 521 protruding downward from both front and rear edges of the bottom wall 520. Further, the case body 52 has a second side wall 522 protruding downward from the right end edge of the bottom wall 520, and a third side wall 523 protruding downward from the left end edge of the bottom wall 520. However, the third side wall 523 is formed so as to be higher in the vertical direction than the pair of the first side wall 521 and the second side wall 522.

The bottom wall 520 has five abutment portions 526 that project downward from its lower surface. These five abutment portions 526 are arranged in the left-right direction on the lower surface of the bottom wall 520. Further, the lower surface of each abutment portion 526 is formed in a semi-cylindrical surface shape. One storage battery 50 is mounted and supported on the lower surface of each abutment portion 526 (see FIG. 16). However, the leftmost abutment portion 526 of the five abutment portions 526 is located below the other four abutment portions 526.

Each pair of first side walls 521 has a pair of projecting pieces 5210. The pair of projecting pieces 5210 are formed in a rectangular plate shape and project downward from the lower end of the first side wall 521. Further, each projecting piece 5210 has a triangular columnar claw 5211 at its tip (lower end). However, the claws 5211 of each projecting piece 5210 of the front first side wall 521 project forward, and the claws 5211 of each projecting piece 5210 of the rear first side wall 521 project rearward.

The protrusion 524 projects to the right from the rear end on the right side surface of the second side wall 522. The protrusion 524 is formed in a substantially rectangular parallelepiped shape. However, it is preferable that the lower right side of the protrusion 524 is formed in a convex curved surface shape.

The third side wall 523 is formed in the shape of a rectangular plate. The third side wall 523 has a terminal holding portion 527 at the lower front portion on the left side surface thereof. The terminal holding portion 527 is formed in a square tubular shape with the axial directions aligned in the vertical direction. Further, the space inside the terminal holding portion 527 is divided into two by a partition wall 5270 (see FIG. 19). Further, the terminal holding portion 527 has a rectangular plate-shaped guide piece 5271 at the upper end portion on the front surface thereof. The guide piece 5271 projects forward from the front surface of the terminal holding portion 527 so that the thickness direction coincides with the left-right direction.

The case cover 53 includes a rectangular first bottom wall 530, a rectangular first side wall 531 projecting diagonally downward to the left from the left edge of the first bottom wall 530, and a first bottom wall 530 and a first side wall 531. It has a pair of second side walls 532 that project upward from both front and rear edges. Further, the case cover 53 has a third side wall 533 that protrudes upward from the right end edge of the first bottom wall 530, and a second bottom wall 534 that projects leftward from the left end edge of the first side wall 531. doing.

Each of the pair of second side walls 532 has a pair of through holes 5320. Further, the front second side wall 532 is formed in a stepped shape.

The third side wall 533 has a projecting piece 5330. The projecting piece 5330 projects upward from the upper end near the rear end of the third side wall 533. Further, the projecting piece 5330 has a triangular columnar claw 5331 at its tip (upper end). The claw 5331 projects to the right from the right side surface at the upper end of the projecting piece 5330.

The second bottom wall 534 is formed in the shape of a rectangular plate. The second bottom wall 534 has a lid portion 535 at its front left end. The lid portion 535 is formed so that the shape seen from the left-right direction is U-shaped.

The five storage batteries 50 are arranged so as to be arranged alternately along the respective radial directions. One end (right end) of the first conductor 54 is electrically connected to the negative electrode terminal of the storage battery 50 at the right end. Further, one end (right end) of the second conductor 55 is electrically connected to the positive electrode terminal of the leftmost storage battery 50. The positive electrode terminal of the storage battery 50 at the right end and the negative electrode terminal of the storage battery 50 second from the right are electrically connected by the conductor plate 56. The positive electrode terminal of the second storage battery 50 from the right and the negative electrode terminal of the third storage battery 50 from the right are electrically connected by the conductor plate 56. The negative electrode terminal of the leftmost storage battery 50 and the positive electrode terminal of the second storage battery 50 from the left are electrically connected by the conductor plate 56. The positive electrode terminal of the third storage battery 50 from the right and the negative electrode terminal of the second storage battery 50 from the left are electrically connected by the conductor plate 56. That is, the five storage batteries 50 are electrically connected in series by the four conductor plates 56.

The first conductor 54 is formed in an S shape by a metal plate (see FIG. 19). One end (right end) of the first conductor 54 in the longitudinal direction is electrically connected to the negative electrode terminal of the right end storage battery 50. The first conductor 54 has a first contact 57 at the other end (left end) in the longitudinal direction thereof. The first contact 57 has a square tubular frame body 570 and a spring body housed in the frame body 570. The spring body is coupled to the upper end of the frame body 570 and is integrally formed with the frame body 570 so as to be flexible in the left-right direction in the frame body 570. The first conductor 54 is housed in the case body 52 along the upper first side wall 521 and the third side wall 523. Further, the first contact 57 is housed in the space above the partition wall 5270 of the two spaces in the terminal holding portion 527.

The second conductor 55 is formed in an S shape by a metal plate. One end (right end) of the second conductor 55 in the longitudinal direction is electrically connected to the positive electrode terminal of the left end storage battery 50. The second conductor 55 has a second contact 58 at the other end (left end) in the longitudinal direction thereof. The second contact 58 has a square tubular frame body and a spring body housed in the frame body. The spring body is coupled to the upper end of the frame body and is integrally formed with the frame body so as to be flexible in the left-right direction in the frame body. The second conductor 55 is housed in the case body 52 along the lower first side wall 521 and the third side wall 523. Further, the second contact 58 is housed in the space below the partition wall 5270 among the two spaces in the terminal holding portion 527.

The case 51 is assembled by connecting the case cover 53 to the case body 52 (see FIG. 17). Each of the four projecting pieces 5210 of the case body 52 is inserted into the corresponding through hole 5320 of the four through holes 5320 of the case cover 53. Further, the projecting piece 5330 included in the case cover 53 is inserted into the through hole 5240 provided in the projecting portion 524 of the case body 52. Then, the case body 52 and the case cover 53 are connected by hooking the claws 5211 and 5331 provided at the tips of the projecting pieces 5210 and 5330 on the edges of the through holes 5320 and 5240, respectively. The opening on the lower side of the terminal holding portion 527 of the case body 52 is closed by covering the lid portion 535 of the case cover 53 (see FIG. 17).

As shown in FIG. 18, the control device 6 includes a first circuit block 60, a second circuit block 61, a housing 62, and a heat radiating plate 63. The first circuit block 60 includes a rectangular plate-shaped first printed wiring board 600, a plurality of types of electronic components 601, a receiving side connector 64, an input terminal block 603, an output connector 602, and a first connector 604. The first printed wiring board 600 is, for example, a double-sided printed wiring board having conductor patterns on both sides (first side and second side) of an insulating substrate made of a glass cloth base material epoxy resin. Among the plurality of types of electronic components 601, the electronic component 601 with a lead is inserted and mounted on the first surface (lower surface) of the first printed wiring board 600. Further, among the plurality of types of electronic components 601, the surface mount type electronic component 601 is surface-mounted on the first surface and the second surface (upper surface) of the first printed wiring board 600 (see FIG. 16). However, the receiving side connector 64, the input terminal block 603, the output connector 602, and the first connector 604 are also inserted and mounted on the first surface of the first printed wiring board 600.

The output connector 602 has a pair of contacts 6020 (see FIG. 18). Each contact 6020 of the output connector 602 contacts and conducts with the corresponding terminal plate 42 of the pair of terminal plates 42 of the emergency light source unit 4.

The receiving side connector 64 has a first contact receiving 641, a second contact receiving 642, and a base 640 (see FIG. 18). The base 640 is formed in a rectangular plate shape by a synthetic resin material having electrical insulation. The first contact receiver 641 and the second contact receiver 642 are formed in a rod shape and are supported by the base 640 in a state of penetrating the base 640 in the thickness direction. The first contact receiver 641 and the first contact 57 are pressed against the frame 570 by the spring body in the frame 570 in a state of being inserted into the frame 570 of the first contact 57 of the emergency power supply unit 5. It is electrically connected. The second contact receiver 642 is electrically connected to the second contact 58 by being pressed against the frame by a spring body inside the frame while being inserted into the frame of the second contact 58 of the emergency power supply unit 5. To.

The first circuit block 60 is a printed circuit composed of printed wiring formed on both sides of the first printed wiring board 600 and a plurality of types of electronic components 601 mounted on both sides of the first printed wiring board 600. (See FIGS. 16 and 18). The printed circuit of the first circuit block 60 includes, for example, a DC power supply circuit, a charging circuit, a lighting circuit, a power failure detection circuit, and a control circuit. The DC power supply circuit is composed of, for example, a self-excited switching power supply circuit such as a ringing choke converter, and is configured to convert an AC voltage input from a regular power supply to an input terminal block 603 into a DC voltage. The charging circuit is configured to output a constant charging current through the receiving connector 64 when power is being supplied from the regular power supply. The lighting circuit is configured to make the DC current input from the emergency power supply unit 5 to the receiving side connector 64 constant, and supply the constant current DC current from the output connector 602 to the emergency light source unit 4. .. The power failure detection circuit is configured to detect a power failure of the regular power supply and notify the control circuit based on the output voltage of the DC power supply circuit. The control circuit is configured to operate the charging circuit and stop the lighting circuit when the power failure detection circuit does not detect a power failure of the normal power supply. Further, the control circuit is configured to stop the charging circuit and operate the lighting circuit when the power failure detection circuit detects a power failure of the normal power supply.

The second circuit block 61 has a rectangular plate-shaped second printed wiring board 610, two push button switches 611 and 612, a display element 613, a light receiving element 614, and a second connector 615 (see FIG. 18). The second connector 615 is mounted at one end (front end) in the longitudinal direction on the lower surface of the second printed wiring board 610. One push button switch 611 is mounted behind the second connector 615 on the lower surface of the second printed wiring board 610. The other push button switch 612 is mounted on the other end (rear end) in the longitudinal direction on the lower surface of the second printed wiring board 610. The display element 613 has, for example, an LED chip that emits green light. The display element 613 is mounted in front of the push button switch 612 on the lower surface of the second printed wiring board 610. The light receiving element 614 is configured to receive a control signal using infrared rays as a communication medium and demodulate the transmission frame from the received control signal. This control signal is transmitted from a remote controller operated by an operator who performs periodic inspection work. The light receiving element 614 is mounted between the display element 613 and the push button switch 611 on the lower surface of the second printed wiring board 610. The second connector 615 is electrically connected to the first connector 604 of the first circuit block 60, for example, by a cable. The control circuit of the first circuit block 60 is configured to monitor the operating state (on and off) of the push button switches 611 and 612 through a cable. Further, the control circuit is configured to receive the transmission frame of the control signal demodulated by the light receiving element 614 through the cable. Further, the control circuit is configured to cause the display element 613 to emit light by passing a current through the cable to the display element 613 when the charging circuit of the first circuit block 60 is operating.

The control circuit is configured to perform an inspection operation while one of the push button switches 611 is turned on. The control circuit that performs the inspection operation stops the charging circuit and operates the lighting circuit. Further, the control circuit is configured to perform a self-inspection operation when the other push button switch 612 is turned on. The control circuit that performs the self-inspection operation stops the charging circuit and operates the lighting circuit for a predetermined period (for example, 30 minutes or 60 minutes), then stops the lighting circuit again and operates the charging circuit. However, it is preferable that the control circuit is configured to perform the self-inspection operation even when the transmission frame instructing the self-inspection operation is received from the light receiving element 614.

The housing 62 has a first housing 620 and a second housing 621. The first housing 620 has a bottom portion 6200 and a side wall portion 6201. The bottom 6200 is formed in a substantially rectangular box shape. The bottom portion 6200 is configured to support the first printed wiring board 600 of the first circuit block 60 from the thickness direction (vertical direction). The side wall portion 6201 is formed in a plate shape. The side wall 6201 is connected to the bottom 6200 via a hinge. Therefore, the side wall 6201 is configured to be rotatable with respect to the bottom 6200 about the hinge. Further, the side wall portion 6201 is configured to support the second printed wiring board 610 of the second circuit block 61 by sandwiching the end portion (left end portion) along the longitudinal direction from the thickness direction.

The second housing 621 is formed in a box shape with the upper surface and the left side open. The second housing 621 is coupled to the first housing 620. The upper surface of the second housing 621 is closed by the bottom 6200 of the first housing 620. Further, the left side surface of the second housing 621 is closed by the side wall portion 6201 of the first housing 620 (see FIG. 16).

The second housing 621 has a pedestal portion 6210 that projects downward from the left end of the lower surface (see FIG. 18). The abutment portion 6210 is formed in a substantially pyramidal table shape. The abutment portion 6210 has two operating members (a first operating member 6214 and a second operating member 6215). The first operating member 6214 is provided at the front end of the lower surface of the abutment portion 6210. The second operating member 6215 is provided at the rear end of the lower surface of the abutment portion 6210. The first operating member 6214 and the second operating member 6215 are configured to be movable in the vertical direction with respect to the lower surface of the abutment portion 6210. That is, when the first operating member 6214 pushed upward pushes the push button of the push button switch 611, the push button switch 611 is turned on. Further, when the second operating member 6215 pushed upward pushes the push button of the push button switch 612, the push button switch 612 is turned on. Further, the abutment portion 6210 has two circular windows 6216 and 6217 between the first operating member 6214 and the second operating member 6215 on the lower surface thereof. The front window 6216 faces the light receiving element 614 of the second circuit block 61 in the vertical direction. The rear window 6217 faces the display element 613 of the second circuit block 61 in the vertical direction. That is, the control signal transmitted from the remote controller reaches the light receiving element 614 through the front window 6216. Further, the light (green light) emitted by the display element 613 is radiated to the outside of the housing 62 through the rear window 6217.

Further, the second housing 621 has three openings 6211, 6212, 6213 at the right end. These three openings 6211, 6212, 6213 are arranged in a row along the front-rear direction (see FIG. 18). The opening 6211 at the front end faces the receiving side connector 64 of the first circuit block 60. The input terminal block 603 is inserted through the opening 6213 at the rear end. The central opening 6212 faces the output connector 602 (see FIG. 17).

The heat radiating plate 63 has a mounting portion 630 to which the emergency light source unit 4 is mounted, a pair of leg portions 631, and a pair of fixing portions 632 (see FIG. 18). The mounting portion 630 is formed in a substantially trapezoidal shape. The pair of leg portions 631 are formed in a flat plate shape and project upward from the front end and the rear end of the mounting portion 630. The pair of fixing portions 632 project from the upper ends of the pair of leg portions 631 in the direction of approaching each other in the front-rear direction. However, it is preferable that the mounting portion 630, the pair of leg portions 631, and the pair of fixing portions 632 are integrally formed of a plate material made of aluminum or an aluminum alloy.

As shown in FIG. 17, the heat radiating plate 63 has a pair of fixed portions having a mounting portion 630 facing the lower surface of the second housing 621 and a pair of leg portions 631 facing the front surface and the rear surface of the second housing 621. The 632 is attached to the housing 62 so as to be hooked on the upper surface of the bottom 6200 of the first housing 620. Further, the heat radiating plate 63 is formed by fitting the protrusions 6218 protruding from the upper and lower ends of the upper surface and the lower surface of the second housing 621 into each of the rectangular fitting holes 633 provided in the pair of leg portions 631. It is positioned relative to the housing 62 (see FIGS. 17 and 18).

The emergency light source unit 4 is attached to the mounting portion 630 by screwing the holder 41 to the screw holes 6300 provided in the mounting portion 630 of the heat radiating plate 63 with two mounting screws 45. (See FIGS. 15-18). Further, in the emergency light source unit 4, the terminal plate holding portion 410 of the holder 41 is plugged and connected to the output connector 602 exposed from the central opening 6212 of the second housing 621, whereby the first control device 6 is connected. It is electrically connected to the circuit block 60 (see FIG. 16). Further, the LED module 40 is thermally coupled to the mounting portion 630 of the heat radiating plate 63 via the heat radiating sheet 43 (see FIG. 16).

The control device 6 is housed in the left end of the instrument body 10 (see FIG. 20). The control device 6 is preferably fixed to the instrument main body 10 by screwing a pair of fixing portions 632 of the heat radiating plate 63 to the top plate 11. Therefore, the heat generated by the LED module 40 is conducted from the heat radiating sheet 43 to the heat radiating plate 63, and further conducted from the heat radiating plate 63 to the instrument main body 10 to be dissipated.

As shown in FIG. 15, the presser foot 8 has a main piece 80, a hook piece 81, a side piece 82, a first insertion piece 83, a second insertion piece 84, and a third insertion piece 85. The main piece 80, the hook piece 81, the side piece 82, the first insertion piece 83, the second insertion piece 84, and the third insertion piece 85 are preferably integrally formed by a metal plate.

The main piece 80 is formed in an L shape when viewed from below. The main piece 80 has an internal thread portion 800. The hook piece 81 has a curved portion 810 curved in an arc shape, a connecting portion 811 connecting the curved portion 810 and the main piece 80, and a rectangular flat portion 812 protruding from the lower end of the curved portion 810 ( 13A to 13C and 15). The hook piece 81 is connected to the lower part of the left end of the main piece 80 by the connecting portion 811. The hook piece 81 is configured so that the curved portion 810 can be displaced in the left-right direction by bending the connecting portion 811 in the thickness direction. The side piece 82 is formed in a rectangular shape. The side piece 82 projects downward and leftward from the rear end of the main piece 80. The lower part of the side piece 82 is inclined toward the rear. The first insertion piece 83 and the second insertion piece 84 are formed in an L shape when viewed from the front-rear direction (see FIGS. 13B and 14B). The second insertion piece 84 is preferably formed by cutting into the main piece 80. The third insertion piece 85 is formed in an L shape when viewed from the front-rear direction (see FIGS. 13B and 14B). The third insertion piece 85 projects upward from the upper end of the left end of the side piece 82 (see FIG. 13B).

In the presser foot 8, the first insertion piece 83, the second insertion piece 84, and the third insertion piece 85 are inserted one-to-one into the three holes penetrating the top plate 11, and the first insertion piece Each of 83, the second insertion piece 84, and the third insertion piece 85 is configured to sandwich the top plate 11. Then, the holding tool 8 is attached to the lower surface of the top plate 11 by screwing the screw inserted into the screw insertion hole provided in the top plate 11 into the female screw portion 800 of the main piece 80 (see FIG. 20).

The emergency power supply unit 5 is arranged between the control device 6 attached to the top plate 11 of the instrument main body 10 and the holding tool 8 (see FIG. 20). The emergency power supply unit 5 is housed in the space between the control device 6 and the holding tool 8 in the instrument main body 10 with the case body 52 facing the top plate 11. The terminal holding portion 527 of the emergency power supply unit 5 is inserted into the housing 62 through the opening 6211 at the front end of the second housing 621. At this time, the guide piece 5217 of the terminal holding portion 527 is guided to the guide groove 6219 provided at the right end of the front surface of the second housing 621 (see FIG. 15). Then, the first contact 57 of the emergency power supply unit 5 is electrically connected to the first contact receiver 641 of the control device 6. Further, the second contact 58 of the emergency power supply unit 5 is electrically connected to the second contact receiver 642 of the control device 6. Further, the emergency power supply unit 5 is supported by the holding tool 8 by hooking the curved portion 810 of the hooking piece 81 of the holding tool 8 on the protrusion 524 provided on the case 51 (see FIGS. 13A and 17). .. Here, when the connecting portion 811 of the hook piece 81 is bent by the force applied to the flat portion 812, the curved portion 810 is displaced to the right and the hook between the curved portion 810 and the protrusion 524 is released. When the emergency power supply unit 5 is pulled downward with the curved portion 810 and the protrusion 524 released from being caught, the first contact 57 and the second contact 58 become the first contact receiver 641 and the second contact. It is pulled out from the receiver 642. That is, the operator can complete the electrical connection work between the emergency power supply unit 5 and the control device 6 almost at the same time as the work of accommodating the emergency power supply unit 5 in the instrument main body 10. In addition, the operator can complete the electrical disconnection operation between the emergency power supply unit 5 and the control device 6 almost at the same time as the removal operation of the emergency power supply unit 5 from the instrument main body 10.

As shown in FIG. 12, the cover 7 includes a first cover 71 and a second cover 72. The first cover 71 and the second cover 72 are connected so as to be arranged in the left-right direction by a long connecting body 73 formed in an L shape when viewed from the front-rear direction. The first cover 71, the second cover 72, and the connecting body 73 are preferably integrally formed of a nonflammable material such as metal. For example, the cover 7 is preferably made of aluminum die-cast. However, the cover 7 may be made of a nonflammable material other than metal, for example, ceramics. If the cover 7 is made of a nonflammable material, it is possible to prevent the cover 7 from burning due to a fire. Further, if the first cover 71 and the second cover 72 are integrally formed, the number of parts can be reduced and the assembly work can be simplified.

The first cover 71 is formed in a box shape with an open upper surface. The lower surface of the first cover 71 is formed in a curved shape that gently projects downward from both ends toward the center in the lateral direction (front-rear direction), similarly to the translucent cover 20 of the conventional lighting device 2 (FIG. 12 and FIG. 15). A recess 710 is formed on the lower surface of the first cover 71. The recess 710 is formed in an elliptical shape when viewed from below (see FIG. 13A). A hole 711 penetrates through the center (bottom) of the recess 710. The hole 711 is formed in a shape (elliptical shape) through which the lens body 440 of the lens 44 can be inserted. The recess 710 is formed so that both ends in the long axis direction (left-right direction) project downward from both ends in the short axis direction (front-back direction) (see FIG. 13B).

The first cover 71 has four through holes (first through hole 712, second through hole 713, third through hole 714, fourth through hole 715) at the left end on the lower surface thereof (FIGS. 13A and 715). 15). The first through hole 712, the second through hole 713, the third through hole 714, and the fourth through hole 715 are arranged so as to be arranged in a row from the front to the rear.

The first cover 71 has two hooks 74 at the left end on the upper surface thereof (see FIG. 14A). Each hook portion 74 is formed so that a part of the strip-shaped metal plate is curved along the thickness direction of the metal plate (see FIG. 14B).

As shown in FIG. 15, the second cover 72 has a flat portion 720, an arm portion 721, and a fixed portion 722. The flat portion 720 is formed in a substantially rectangular flat plate shape. The flat portion 720 is connected to the connecting body 73 at its left end. The arm portion 721 is formed in a substantially rectangular flat plate shape. The arm portion 721 is configured to rise upward from the front end at the right end of the flat portion 720. The fixing portion 722 is formed in a substantially rectangular flat plate shape. The fixing portion 722 is configured to project to the right from the upper end of the arm portion 721. Further, the fixing portion 722 has a circular screw insertion hole 723 in the right corner closer to the front thereof.

As shown in FIGS. 13A to 13C, the cover 7 covers a part (left end portion) of the emergency light source unit 4, the control device 6, and the emergency power supply unit 5 by the first cover 71, and the second cover 72. It is configured to cover the entire rest of the emergency power supply unit 5 from below. The lens body 440 of the emergency light source unit 4 is inserted into the hole 711 of the first cover 71 and exposed to the outside of the cover 7. The first operating member 6214 faces the first through hole 712 of the first cover 71 (see FIG. 13A). The first operating member 6214 is pushed by a jig inserted through the first through hole 712. The second operating member 6215 is inserted through the fourth through hole 715 of the first cover 71 (see FIG. 14B). The second operating member 6215 is pushed by, for example, a human finger. The second through hole 713 of the first cover 71 faces the light receiving element 614 of the control device 6 (see FIG. 13A). Further, the third through hole 714 of the first cover 71 faces the display element 613 of the control device 6 (see FIG. 13A). That is, the control signal transmitted from the remote controller reaches the light receiving element 614 through the second through hole 713. Further, the light (green light) emitted by the display element 613 is radiated to the outside of the cover 7 through the third through hole 714.

The cover 7 is fixed to the instrument main body 10 by two hooking portions 74 of the first cover 71 and a fixing portion 722 of the second cover 72. Each hook portion 74 is hooked on a projecting piece 130 projecting to the right from the lower end of the second side plate 13 on the left side of the instrument body 10 (see FIG. 20). The fixing portion 722 is screwed to the top plate 11 of the instrument main body 10. The screw for screwing the fixing portion 722 is inserted into the screw insertion hole 723 of the fixing portion 722 and the screw insertion hole 801 provided in the main piece 80 of the holding tool 8, and then the top plate of the instrument main body 10. It is screwed into the female screw provided on No. 11 (see FIG. 20).

In the above-mentioned luminaire 1, the first circuit block 60 of the control device 6 corresponds to one embodiment of the electronic circuit unit. Further, in the first circuit block 60, the first printed wiring board 600 corresponds to the circuit board, the receiving side connector 64 corresponds to the through-hole mounting component, the first contact receiving 641 corresponds to the first lead, and the second The contact receiver 642 corresponds to the second lead. Of the plurality of through holes provided in the first printed wiring board 600, the through hole into which the first contact receiver 641 is inserted corresponds to the first through hole. Further, among the plurality of through holes provided in the first printed wiring board 600, the through hole into which the second contact receiver 642 is inserted corresponds to the second through hole. The first and second through holes are both plated through holes. The through-hole plating formed on the wall surface of the first through hole includes the printed wiring (first conductor) on the first surface of the first printed wiring board 600 and the printed wiring (second conductor) on the second surface. It is electrically connected. On the other hand, the through-hole plating formed on the wall surface of the second through-hole is not electrically connected to the second conductor but is electrically connected to the first conductor. The first contact receiver 641 inserted into the first through hole conducts with the negative electrode of the emergency power supply unit 5 through the first contact 57. Further, the second contact receiver 642 inserted into the second through hole conducts with the positive electrode of the emergency power supply unit 5 through the second contact 58. That is, since the grounds on the first and second surfaces of the first printed wiring board 600 and the negative electrode of the emergency power supply unit 5 are electrically connected, the through-hole plating of the first through hole is performed on the first and second through holes. It is electrically connected to the conductor of. On the other hand, the positive electrode of the emergency power supply unit 5 is electrically connected to the output terminal of the charging circuit, the input terminal of the lighting circuit, and the power supply terminal of the control circuit, but is electrically connected to the DC power supply circuit and the power failure detection circuit. It does not have to be done. Therefore, the through-hole plating of the second through hole is not electrically connected to the second conductor, but is electrically connected to the first conductor. However, the electrical connection relationship between the above-mentioned emergency power supply unit 5 and the charging circuit, lighting circuit, control circuit, DC power supply circuit, and power failure detection circuit is only an example.

Therefore, when the receiving side connector 64 is inserted and mounted on the first printed wiring board 600, the edge of the tip of the first contact receiving 641 may hit the through hole plating of the corresponding through hole and damage the through hole plating. Is extremely low. On the other hand, the possibility that the edge of the tip of the second contact receiver 642 hits the through-hole plating of the corresponding through hole is higher than that of the first contact receiver 641. However, in the second contact receiver 642, the tip portion protruding toward the second surface side may be electrically connected to the first conductor. Therefore, even if the through-hole plating of the through hole corresponding to the second contact receiver 642 is damaged, the reliability of the electrical connection between the second contact receiver 642 and the first conductor does not decrease. As a result, the first circuit block 60 can improve the mounting quality of the receiving side connector 64. Further, the displacement amount of the receiving side connector 64 with respect to the first printed wiring board 600 is compared with the case where the hole diameter of the through hole corresponding to the second contact receiving 642 is equal to the hole diameter of the through hole corresponding to the first contact receiving 641. Is suppressed. Therefore, the first circuit block 60 can improve the accuracy of the position and direction of the receiving side connector 64 with respect to the first printed wiring board 600.

As described above, the electronic circuit unit 9 (first circuit block 60) is mounted on a circuit board 90 (first printed wiring board 600) composed of a double-sided printed wiring board having a plurality of through holes 93 and a circuit board 90. It has multiple parts. At least one of the plurality of components is an insert mounting component 95 (receiver) having a plurality of leads including a first lead 951 (first contact receiver 641) and a second lead 952 (second contact receiver 642). Side connector 64). The circuit board 90 is formed on the insulating substrate 900, the first conductor 91 formed on the first surface 901 of the insulating substrate 900, and the second surface 902 opposite to the first surface 901 of the insulating substrate 900. It has a second conductor 92. The circuit board 90 has a first through hole 931 through which the first lead 951 is inserted through the insulating substrate 900 and a second through hole through which the second lead 952 is inserted through the insulating substrate 900. It has 932. In the circuit board 90, the minimum width of the gap between the wall surface of the second through hole 932 and the second lead 952 is smaller than the minimum width of the gap between the wall surface of the first through hole 931 and the first lead 951. It is configured to do. The first through hole 931 is a plated through hole that is electrically connected to the first conductor 91 and the second conductor 92. The second through hole 932 is a plated through hole or a plain hole that is electrically connected to the first conductor 91 without being electrically connected to the second conductor 92.

Since the electronic circuit unit 9 is configured as described above, even if the plating (through hole plating) on the wall surface of the second through hole 932 is scratched by the second lead 952, the second lead 952 and the first lead 952 The reliability of the electrical connection of the conductor 91 of the above does not decrease. Moreover, since the amount of displacement of the through-hole mounting component 95 with respect to the circuit board 90 is suppressed, the electronic circuit unit 9 can improve the accuracy of the position and direction of the through-hole mounting component 95 with respect to the circuit board 90. As a result, the electronic circuit unit 9 can improve the mounting quality of the through-hole mounting component 95.

In the electronic circuit unit 9, the first and second through holes 931 and 932 preferably have circular openings on the first surface 901 and the second surface 902. At least a part of the first and second leads 951 and 952 shall be polygonal, oval or elliptical in shape as seen from the insertion direction into the first and second through holes 931 and 932. Is preferable.

If the electronic circuit unit 9 is configured as described above, since the opening shapes of the first and second through holes 931 and 932 are circular, it corresponds to the first and second leads 951 and 952 of various shapes. can do.

In the electronic circuit unit 9, the through-hole mounting component 95 is preferably a connector having first and second leads 951 and 952. The second through hole 932 is preferably a plated through hole that is electrically connected to the first conductor 91 without being electrically connected to the second conductor 92.

If the electronic circuit unit 9 is configured as described above, the mounting quality of the through-hole mounting component 95 including the connector can be improved.

In the electronic circuit unit 9, the through-hole mounting component 95 preferably has a plurality of first and second leads 951 and 952, and the first and second leads 951 and 952 are arranged side by side in a plurality of rows. The through-hole mounting component 95 is preferably configured to have a second lead 952 at the end of each of the plurality of rows. The circuit board 90 preferably has a plurality of first and second through holes 931 and 932. The circuit board 90 is configured such that the first and second through holes 931 and 932 are arranged side by side in a plurality of rows, and the second through holes 932 are arranged at the ends of each of the plurality of rows. Is preferable.

If the electronic circuit unit 9 is configured as described above, it is possible to reduce variations in the mounting position and mounting direction of the through-hole mounting component 95 having a large number of leads.

In the electronic circuit unit 9, the through-hole mounting component 95 preferably has a plurality of first and second leads 951 and 952, and the first and second leads 951 and 952 are arranged side by side in a plurality of rows. The through-hole mounting component 95 is preferably configured such that a second lead 952 is arranged in the center of each of the plurality of rows. The circuit board 90 preferably has a plurality of first and second through holes 931 and 932. The circuit board 90 is configured such that the first and second through holes 931 and 932 are arranged side by side in a plurality of rows, and the second through hole 932 is arranged in the center of each of the plurality of rows. Is preferable.

If the electronic circuit unit 9 is configured as described above, it is possible to reduce variations in the mounting position and mounting direction of the through-hole mounting component 95 having a large number of leads. Further, in the electronic circuit unit 9, the first and second leads in each through hole 93 are compared with the case where the circuit board 90 is configured so as to arrange the second through hole 932 at each end of each row. It is possible to improve the workability of the work of inserting the 951 and 952.

In the electronic circuit unit 9, the through-hole mounting component 95 preferably has at least one of a light emitting element 96 that emits light and a light receiving element 97 that receives light.

If the electronic circuit unit 9 is configured as described above, it is possible to improve the mounting quality of the through-hole mounting component including the light emitting element 96 or the light receiving element 97.

Further, as described above, the electronic circuit unit 9 has a circuit board 90 made of a double-sided printed wiring board having a plurality of through holes, and a plurality of components mounted on the circuit board 90. At least one component of the plurality of components is a through-hole mounting component having a plurality of leads including a first lead 981, a second lead 982, and a third lead 983. The circuit board 90 is formed on the insulating substrate 900, the first conductor 91 formed on the first surface 901 of the insulating substrate 900, and the second surface 902 opposite to the first surface 901 of the insulating substrate 900. It has a second conductor 92. The circuit board 90 has a first through hole 931 through which the first lead 981 is inserted through the insulating substrate 900 and a second through hole through which the second lead 982 is inserted through the insulating substrate 900. It has 932. The circuit board 90 has a third through hole 933 through which the insulating substrate 900 is inserted and a third lead 983 is inserted. The circuit board 90 is configured to arrange a third through hole between the first through hole 931 and the second through hole 932. The circuit board 90 makes the minimum width of the gap between the wall surface of the third through hole 933 and the third lead 983 smaller than the minimum width of the gap between the wall surface of the first through hole 931 and the first lead 981. It is configured to do. The circuit board 90 makes the minimum width of the gap between the wall surface of the third through hole 933 and the third lead 983 smaller than the minimum width of the gap between the wall surface of the second through hole 932 and the second lead 982. It is configured to do. The first through hole 931 is a plated through hole that is electrically connected to the first conductor 91 and the second conductor 92. The second through hole 932 is a plated through hole that is electrically connected to the first conductor 91 and the second conductor 92. The third through hole 933 is a plain hole.

Since the electronic circuit unit 9 is configured as described above, when the electronic circuit unit 9 is inserted and mounted on the circuit board 90, the insertion mounting component 98 is attached to the circuit board 90 by the third lead 983 inserted into the third through hole 933. Can be positioned. Therefore, the electronic circuit unit 9 is less likely to damage the through-hole plating of the first and second through-holes 931 and 932 with the first and second leads 951 and 952. As a result, the electronic circuit unit 9 can improve the mounting quality of the through-hole mounting component 98.

As described above, the electric device (control device 6) includes an electronic circuit unit (first circuit block 60) and a housing 62 that houses the first circuit block 60.

Since the electric device (control device 6) is configured as described above, the mounting quality of the through-hole mounting components 95 and 98 can be improved.

6 Control device (electrical equipment)
9 Electronic circuit unit 60 1st circuit block (electronic circuit unit)
62 Housing 64 Receiver connector (Through-hole mounting component)
90 Circuit board 91 First conductor 92 Second conductor 93 Through hole 95 Insertion mounting part 96 Light emitting element 97 Light receiving element 600 First printed wiring board (circuit board)
641 First contact reception (first lead)
642 Second contact receiver (second lead)
900 Insulated substrate 901 1st surface 902 2nd surface 931 1st through hole 932 2nd through hole 933 3rd through hole 951 1st lead 952 2nd lead 981 1st lead 982 2nd lead 983 Third lead

Claims (8)

A circuit board consisting of a double-sided printed wiring board with multiple through holes,
It has a plurality of components mounted on the circuit board.
At least one of the plurality of parts is a through-hole mounting part having a plurality of leads including a first lead and a second lead.
The circuit board
Insulated substrate and
A first conductor formed on the first surface of the insulating substrate and
A second conductor formed on the second surface of the insulating substrate opposite to the first surface, and
A first through hole through which the first lead is inserted through the insulating substrate, and
It has a second through hole through which the second lead is inserted through the insulating substrate, and the minimum width of the gap between the wall surface of the second through hole and the second lead is set to the first. It is configured to be smaller than the minimum width of the gap between the wall surface of the through hole 1 and the first lead.
The first through hole is a plating through hole that is electrically connected to the first conductor and the second conductor.
The second through hole is a plated through hole or a plain hole that is electrically connected to the first conductor without being electrically connected to the second conductor. unit. The first and second through holes have a circular opening shape on the first surface and the second surface.
At least a part of the first and second leads is characterized in that the shape seen from the insertion direction into the first and second through holes is a polygon, an oval or an ellipse having a triangle or more. The electronic circuit unit according to claim 1. The through-hole mounting component is a connector having the first and second leads.
The second through hole according to claim 1 or 2, wherein the second through hole is a plating through hole that is electrically connected to the first conductor without being electrically connected to the second conductor. Electronic circuit unit. The through-hole mounting component has a plurality of the first and second leads, the first and second leads are arranged side by side in a plurality of rows, and the second lead is arranged at an end of each of the plurality of rows. Configured to place leads in
The circuit board has a plurality of the first and second through holes, the first and second through holes are arranged side by side in a plurality of rows, and the first through hole is arranged at an end of each of the plurality of rows. The electronic circuit unit according to any one of claims 1 to 3, wherein the electronic circuit unit is configured to arrange the through holes of 2. The through-hole mounting component has a plurality of the first and second leads, the first and second leads are arranged side by side in a plurality of rows, and the second lead is centered in each of the plurality of rows. Configured to place leads in
The circuit board has a plurality of the first and second through holes, the first and second through holes are arranged side by side in a plurality of rows, and the first through hole is arranged in a center of each of the plurality of rows. The electronic circuit unit according to any one of claims 1 to 3, wherein the electronic circuit unit is configured to arrange the through holes of 2. The electron according to any one of claims 1 to 5, wherein the through-hole mounting component has at least one of a light emitting element that emits light and a light receiving element that receives light. Circuit unit. A circuit board consisting of a double-sided printed wiring board with multiple through holes,
It has a plurality of components mounted on the circuit board.
At least one of the plurality of parts is a through-hole mounting part having a plurality of leads including a first lead, a second lead, and a third lead.
The circuit board
Insulated substrate and
A first conductor formed on the first surface of the insulating substrate and
A second conductor formed on the second surface of the insulating substrate opposite to the first surface, and
A first through hole through which the first lead is inserted through the insulating substrate, and
It has a second through hole through which the second lead is inserted through the insulating substrate and a third through hole through which the third lead is inserted through the insulating substrate. The third through hole is configured to be arranged between the first through hole and the second through hole.
The circuit board
The minimum width of the gap between the wall surface of the third through hole and the third lead is the minimum width of the gap between the wall surface of the first through hole and the first lead, and the second through hole. It is configured to be smaller than the minimum width of the gap between the wall surface and the second lead.
The first through hole is a plated through hole that is electrically connected to the first and second conductors.
The second through hole is a plated through hole that is electrically connected to the first and second conductors.
The third through hole is an electronic circuit unit characterized by being a plain hole. The electronic circuit unit according to any one of claims 1 to 7 and
An electric device including a housing for accommodating the electronic circuit unit.

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