CN215372372U - Electronic device - Google Patents

Abstract

The utility model provides an electronic device. The electronic device includes a first substrate, a plurality of first electrode groups, a plurality of first load groups, and a first wire. Each of the plurality of first electrode groups has a first electrode and a second electrode. Each of the plurality of first load groups has a plurality of first loads. The plurality of first loads are electrically connected in series between the first electrode and the second electrode. The first electric wire includes a first covering portion and a first exposed portion. The first exposed portion is disposed on one end side of the first wire, and the other end side extends to the outside of the first substrate toward the power supply. The first exposed portions are connected to the first electrodes of the plurality of first electrode groups in a straddle-type manner by solder, or the first exposed portions are connected to the second electrodes of the plurality of first electrode groups in a straddle-type manner by solder, whereby the plurality of first load groups are electrically connected in parallel.

Description

Electronic device

Technical Field

The present invention relates to an electronic device.

Background

There is a lighting device having an elongated rectangular-shaped substrate. A plurality of first LED light sources and a plurality of second LED light sources (a first load group and a second load group are mounted) of different types are mounted on the mounting surface of the substrate. The plurality of first LED light sources are connected in series by a first circuit, and the plurality of second LED light sources are different from the first LED light sources and connected in series by a second circuit. On the mounting surface, an electronic connector (short-circuit member) as an electrical connection portion is mounted at a position inside the LED light source of the end portion as viewed from both ends of the substrate in the longitudinal direction, and an electric wire is connected to the electrical connection portion to supply power to the electrical connection portion. Thus, the first LED light source and the second LED light source may be controlled separately.

SUMMERY OF THE UTILITY MODEL

However, in such a lighting device, an electronic connector is required in order to connect the plurality of first LED light sources and the plurality of second LED light sources with different circuitry. Therefore, a structure for mounting the electric wire from the power source to the electronic connector and a structure for mounting the electronic connector to the mounting surface of the substrate are required. As a result, when the plurality of first LED light sources and the plurality of second LED light sources are connected by different circuit systems, the operation of connecting the wires becomes complicated.

The present invention has been made in view of the above-described problems, and an object thereof is to provide an electronic apparatus capable of effectively simplifying the arrangement of electric wires when a plurality of load groups are connected in parallel.

An electronic device includes a first substrate, a plurality of first electrode groups, a plurality of first load groups, and a first wire. The first wire is provided with a first conductive piece and a first insulator wrapping the first conductive piece. Each of the plurality of first electrode groups has a first electrode and a second electrode. Each of the plurality of first load groups has a plurality of first loads. The plurality of first loads are electrically connected in series between the first electrode and the second electrode. The first electric wire includes a first covering portion in which the first conductive member is covered with the first insulator, and a first exposed portion in which the first conductive member is exposed from the first insulator. The first exposed portion is disposed on one end side of the first wire. The other end side of the first wire extends to the outside of the first substrate toward a power supply. The first exposed portions are connected to the first electrodes of the plurality of first electrode groups in a straddling manner by solder, or the first exposed portions are connected to the second electrodes of the plurality of first electrode groups in a straddling manner by solder, whereby the plurality of first load groups are electrically connected in parallel.

In the electronic device disclosed in the present application, the first exposed portion preferably includes a base end portion, a first contact portion, a non-contact portion, and a second contact portion. Preferably, the first coating portion, the base end portion, the first contact portion, the non-contact portion, and the second contact portion are connected in the stated order. Preferably, the proximal end portion is a proximal end of the first exposed portion with respect to the first covering portion. The first coating portion preferably extends from the proximal end portion toward the power supply. When the first exposed portion is connected to the first electrode of the plurality of first electrode groups in a straddling manner by solder, it is preferable that: the non-contact portion is not in contact with the first electrodes of the plurality of first electrode groups, the first contact portion is in contact with one of the first electrodes of the plurality of first electrode groups, and the second contact portion is in contact with another one of the first electrodes of the plurality of first electrode groups. When the first exposed portion is connected to the second electrode of the plurality of first electrode groups in a straddle-type manner by solder, it is preferable that: the non-contact portion is not in contact with the second electrodes of the plurality of first electrode groups, the first contact portion is in contact with one of the second electrodes of the plurality of first electrode groups, and the second contact portion is in contact with another one of the second electrodes of the plurality of first electrode groups.

In the electronic device disclosed in the present application, when the first exposed portion is connected to the first electrodes of the plurality of first electrode groups in a straddling manner by solder, the second electrodes of the plurality of first electrode groups are preferably relay electrodes for external electrodes. In the case where the first exposed portion is connected to the second electrode of the plurality of first electrode groups in a straddling manner by solder, the first electrode of the plurality of first electrode groups is preferably a relay electrode for an external electrode.

In the electronic device disclosed in the present application, the first load is preferably a light emitting element.

The electronic device disclosed in the present application preferably further includes a plurality of second electrode groups, a plurality of second load groups, and a second wire. The second wire preferably has a second conductive member and a second insulator covering the second conductive member. Preferably, each of the plurality of second electrode groups has a third electrode and a fourth electrode. Preferably, each of the plurality of second load groups has a plurality of second loads. The plurality of second loads are preferably electrically connected in series between the third electrode and the fourth electrode. The second electric wire preferably includes a second covering portion in which the second conductive member is covered with the second insulator, and a second exposed portion in which the second conductive member is exposed from the second insulator. Preferably: the second exposed portion is disposed on one end side of the second electric wire. Preferably: the other end side of the second wire extends to the outside of the first substrate toward the power supply. Preferably: the second exposed portions are connected to the third electrodes of the plurality of second electrode groups in a straddling manner by solder, or the second exposed portions are connected to the fourth electrodes of the plurality of second electrode groups in a straddling manner by solder, whereby the plurality of second load groups are electrically connected in parallel. Preferably, the plurality of first load groups and the plurality of second load groups are electrically connected in parallel.

In the electronic device disclosed in the present application, it is preferable that the second load is a light emitting element different from the first load.

According to the electronic device of the present invention, the arrangement of the electric wires when a plurality of load groups are connected in parallel can be effectively simplified.

Drawings

Fig. 1 is a perspective view of a lighting fixture according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the lighting fixture according to the main embodiment.

Fig. 3 is a plan view of the substrate unit of the lighting device according to the main embodiment.

Fig. 4a is a plan view of the lighting device according to the main embodiment, and fig. 4b is a circuit diagram of the lighting device according to the main embodiment.

Fig. 5 is an enlarged view of the V portion of fig. 4 a.

Fig. 6 is a plan view of an illumination device according to a modification of the main embodiment.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and description thereof will not be repeated. Also, in the drawings, the X-axis, Y-axis, and Z-axis of the three-dimensional vertical coordinate system are appropriately marked for ease of understanding. The X-axis and the Y-axis are parallel to the horizontal direction, and the Z-axis is parallel to the vertical direction. The positive direction of the Z axis indicates a vertically upward direction, and the negative direction of the Z axis indicates a vertically downward direction.

Fig. 1 is a perspective view of a lighting fixture 100 according to an embodiment of the present invention. As shown in fig. 1, the lighting fixture 100 emits light. The lighting fixture 100 extends in a predetermined direction PD (hereinafter, referred to as "direction PD"). Specifically, the lighting fixture 100 includes a first unit U1 and a second unit U2. The first unit U1 emits light and functions as a light source unit. The first unit U1 is installed in the second unit U2. The first unit U1 extends along the direction PD.

The second unit U2 extends along direction PD. The second unit U2 is mounted to a mounting portion of a structure such as a building, for example. The mounting portion is, for example, a ceiling surface of a room in a building.

Fig. 2 is an exploded perspective view of the lighting fixture 100. As shown in fig. 2, the first unit U1 includes a cover member 95, a pair of first blocking members 97, the lighting device 1, a first base member 81, a pair of elastic members 82, and a second base member 83.

The cover member 95 extends in the direction PD to cover the lighting device 1. The cover member 95 is hollow, and the cover member 95 houses the pair of elastic members 82, the lighting device 1, and the first base member 81. The cover member 95 is made of, for example, synthetic resin. The cover member 95 diffuses light emitted from the lighting device 1, for example. The cover member 95 may be white translucent, for example. The cover member 95 may be formed by, for example, processing and molding a resin containing a light diffusing material, or may be formed by processing and molding a transparent material and then performing a light diffusing treatment on the surface. The cover member 95 is, for example, substantially U-shaped in cross-sectional view.

The pair of first blocking members 97 are fixed to a pair of longitudinal end portions of the cover member 95, respectively. For example, the first blocking member 97 is attached to the end portion in the longitudinal direction of the cover member 95 by an adhesive. Thereby, the pair of first closing members 97 close the pair of open ends 96 in the longitudinal direction of the cover member 95, respectively. Each of the first blocking members 97 is, for example, substantially flat plate-like and has a rectangular shape in plan view. The long side direction of the cover member 95 is parallel to the direction PD.

The illumination device 1 extends along the direction PD and emits light. The lighting device 1 is an example of an "electronic device". The lighting device 1 is, for example, a light emitting module. The light Emitting module is, for example, an led (light Emitting diode) module. Specifically, the lighting device 1 includes a substrate 9, a plurality of light-emitting elements L, and first lead wires 2. The board 9 has a mounting surface a1 and a facing surface a2 opposite to the mounting surface a1, and extends in the direction PD. The substrate 9 is single or plural. The plurality of substrates 9 includes a first substrate and a second substrate. Hereinafter, the "first substrate" may be referred to as " first substrate 9, 9A" and the "second substrate" may be referred to as "second substrate 9, 9B". The plurality of light emitting elements L are mounted on the mounting surface a1 of the board 9. The light emitting element L is an example of a "load" such as a lighting load. The plurality of light emitting elements L are arranged in a straight line, for example. The light emitting elements L each emit light, and are LEDs, for example. The plurality of light emitting elements L face the inner surface of the cover member 95, and emit light toward the inner surface of the cover member 95. As a result, the light passes through the cover member 95 and is emitted to the outside of the lighting fixture 100. The first pin line 2 extends toward the power supply portion 94. The first pin line 2 is an example of a "first electric wire". The first pin line 2 is, for example, a power supply line. More specifically, the first lead wire 2 is, for example, a PVC plastic power supply wire, a tinned wire, or an enameled wire.

The first base member 81 is substantially elongated and extends along the direction PD. The first base member 81 is made of, for example, metal (e.g., aluminum). The lighting device 1 is mounted on the first base member 81. Specifically, the first base member 81 has a substantially flat first face portion B1 and a second face portion B2 opposite to the first face portion B1. Then, the lighting device 1 is mounted on the first base member 81 so that the first face B1 faces the opposite face a2 of the board 9.

For example, the thermal expansion coefficient of the first base member 81 is different from that of the cover member 95. For example, the cover member 95 has a thermal expansion coefficient larger than that of the first base member 81.

The pair of elastic members 82 are attached to a pair of longitudinal end portions of the first base member 81, respectively. The elastic members 15 each have elasticity or flexibility. The elastic member 15 is made of rubber, for example. The rubber is made of, for example, natural rubber, synthetic rubber, or silicone rubber. The long side direction of the first base member 81 is parallel to the direction PD.

The second base member 83 is substantially elongated and extends in the direction PD. The second base member 83 is made of, for example, metal (e.g., aluminum). The length LG2 of the second base member 83 in the longitudinal direction is shorter than the length LG1 of the first base member 81 in the longitudinal direction. Therefore, the cost of the second base member 83 can be reduced. The second base member 83 is mounted on the first base member 81. Specifically, the second base member 83 has a first face C1 and a second face C2 opposite to the first face C1. Then, the second base member 83 is mounted on the first base member 81 in such a manner that the first face C1 of the second base member 83 faces the second face B2 of the first base member 81. The long side direction of the second base member 83 is parallel to the direction PD.

For example, the second base member 83 has a thermal expansion coefficient different from that of the cover member 95. For example, the cover member 95 has a thermal expansion coefficient larger than that of the second base member 83.

The second unit U2 includes a case 91, a pair of second closing members 92, and a power supply unit 94. The housing 91 extends along the direction PD and is substantially U-shaped in cross section. The housing 91 is made of metal, for example. The case 91 accommodates the power supply unit 94. The power supply section 94 supplies power to the lighting device 1 through the first pin line 2. The power supply section 94 is an example of "power supply". The power supply section 94 is connected to an external power supply. The external power supply is a commercial power supply. The external power is supplied to the power supply section 94. The power supply unit 94 is, for example, a dc power supply. Specifically, the power supply unit 94 converts an external power supply voltage (ac) into an internal power supply voltage (dc) based on the specification of the light emitting element L, and supplies a current based on the internal power supply voltage to the light emitting element L. The pair of second closing members 92 are fixed to a pair of longitudinal end portions of the housing 91, respectively. Thereby, the pair of second closing members 92 close the pair of open ends 93 in the longitudinal direction of the housing 91, respectively. The second blocking members 92 are each, for example, substantially flat plate-like and have a rectangular shape in plan view. The longitudinal direction of the case 91 is parallel to the direction PD.

Next, the structure of the illumination device 1 will be described in detail with reference to fig. 2 to 5. Fig. 3 is a plan view of the substrate unit 8. Fig. 4a is a top view of the lighting device 1. Fig. 4b is a circuit diagram of the lighting device 1. Fig. 5 is an enlarged view of the V portion of fig. 4 a. As shown in fig. 3, the lighting device 1 includes a first substrate 9, a plurality of first electrode groups 4, a plurality of first light-emitting element groups 6, and a conductor pattern CP. The first substrate 9, the plurality of first electrode groups 4, the plurality of first light-emitting element groups 6, and the conductor pattern CP constitute a substrate unit 8.

The first substrate 9 is, for example, substantially flat. The first substrate 9 is, for example, substantially rectangular in plan view. The long side direction of the first substrate 9 is parallel to the direction PD. The short side direction of the first substrate 9 is orthogonal to the direction PD. The first substrate 9 is not limited to a substantially rectangular shape in plan view, and may be, for example, a circular shape, a circular ring shape, a fan shape, an arch shape, or a circular arc shape.

The plurality of first electrode groups 4 is, for example, 2 first electrode groups 4. The 2 first electrode groups 4 are a first electrode group 4A and a first electrode group 4B. Each of the 2 first electrode groups 4 has a first electrode 41 and a second electrode 42. Specifically, the first electrode group 4A has a first electrode 41A and a second electrode 42A. The first electrode group 4B has a first electrode 41B and a second electrode 42B. Each of the plurality of first electrode groups 4 is connected to a plurality of first light-emitting element groups 6 by a conductor pattern CP. A first voltage of a first polarity is applied to the first electrode 41. A second voltage different from the first voltage is applied to the second electrode 42. The first voltage is, for example, a predetermined voltage greater than 0 volt. The second voltage is, for example, a voltage of 0 v (ground voltage).

The plurality of first light emitting element groups 6 is an example of "a plurality of first load groups". The plurality of first light emitting element groups 6 is, for example, 2 first light emitting element groups 6. The 2 first light-emitting element groups 6 are the first light-emitting element group 6A and the first light-emitting element group 6B. The first light-emitting element group 6A has a plurality of first light-emitting elements 61, for example, a first light-emitting element 61A and a first light-emitting element 61B. The first light-emitting element group 6B has a plurality of first light-emitting elements 62, for example, a first light-emitting element 62A and a first light-emitting element 62B. The first light-emitting element 61A and the first light-emitting element 61B are configured by, for example, light-emitting elements L having the same function. The first light-emitting elements 62A and 62B are constituted by, for example, light-emitting elements L having the same function. The first light-emitting element group 6A and the first light-emitting element group 6B may be configured by light-emitting elements L having the same function or may be configured by light-emitting elements L having different functions. In this specification, "the first light-emitting element 61" and "the first light-emitting element 62" may be collectively referred to as "the first light-emitting element 60" or "the light-emitting element L".

Each of the first light-emitting elements 60 includes an anode terminal and a cathode terminal. The anode terminal and the cathode terminal of the first light emitting element 60 are each electrically connected to the conductor pattern CP. When a current is supplied to the plurality of first light-emitting elements 60, each of the plurality of first light-emitting elements 60 emits light. The first light emitting element 60 is, for example, an smd (surface Mount device) type or a cob (chip on board) type.

The plurality of first light emitting elements 60 are electrically connected in series between the first electrode 41 and the second electrode 42. Specifically, the first light-emitting element 61A and the first light-emitting element 61B are electrically connected in series between the first electrode 41A and the second electrode 42A. The first light-emitting element 62A and the first light-emitting element 62B are electrically connected in series between the first electrode 41B and the second electrode 42B.

In addition, in order to facilitate understanding of the drawings, in fig. 3, 2 first light-emitting element groups 6 are drawn as the plurality of first light-emitting element groups 6, and 2 first light-emitting elements 60 are drawn as the plurality of first light-emitting elements 60, but the main embodiment is not limited thereto.

The conductive pattern CP is formed of a conductive material and functions as a wiring.

As shown in fig. 4a and 4b, the lighting device 1 further includes a first lead wire 2. In fig. 4a and 4b, as an example of the lighting device 1, 2 first lead wires 2 are connected to the input terminal side of the circuit and the output terminal side of the circuit, respectively. The 2 first lead lines 2 are a first lead line 2A and a first lead line 2B, each connected to an input terminal side of the circuit and an output terminal side of the circuit. The input terminal side of the circuit and the output terminal side of the circuit are respectively located at both ends in the longitudinal direction of the first substrate 9, for example.

The first lead line 2 has a first conductive member Y1 and a first insulator Z1. The first insulator Z1 wraps the first conductive member Y1. The first lead wire 2 is an electrical conductor such as a PVC plastic power line.

The first lead wire 2 includes a first covering portion 21 and a first exposed portion 22. In the first covering portion 21, the first conductive member Y1 is covered by the first insulator Z1. In the first exposed portion 22, the first conductive member Y1 is exposed from the first insulator Z1. The first exposed portion 22 is a so-called lead wire stripping portion. The first exposed portion 22 is disposed on one end side of the first lead wire 2, and the other end side of the first lead wire 2 extends outward of the first substrate 9A toward the power supply portion 94. The other end side of the first lead line 2 extends to the outside of the first substrate 9A, for example, to be connected to the power supply portion 94. The other end side of the first lead line 2 may extend to the outside of the first substrate 9A and be indirectly connected to the power supply portion 94.

As shown in fig. 3, 4a, and 4b, the first exposed portions 22 are connected to the first electrodes 41 of the plurality of first electrode groups 4 in a straddle-type manner by solder, or the first exposed portions 22 are connected to the second electrodes 42 of the plurality of first electrode groups 4 in a straddle-type manner by solder, whereby the plurality of first light emitting element groups 6 are electrically connected in parallel. Specifically, the first exposed portion 22 extends from the first covering portion 21 so as to be substantially parallel to the first substrate 9, is arranged to overlap the first electrode 41A and the first electrode 41B in a plan view, and is soldered to the first electrode 41A and the first electrode 41B. The first exposed portion 22 extends from the first covering portion 21 so as to be substantially parallel to the first substrate 9, is arranged to overlap the second electrode 42A and the second electrode 42B in plan view, and is welded to the second electrode 42A and the second electrode 42B. Therefore, according to the main embodiment, when a plurality of first light emitting element groups 6 are connected by different circuit systems, a short-circuiting member other than the first lead wires 2 is not necessary. As a result, the arrangement of the wires when the plurality of first light-emitting element groups 6 are connected in parallel can be effectively simplified. This makes it possible to easily manufacture the lighting device 1. In addition, the number of lead wires can be reduced. Therefore, the minimum design size of the lighting device 1 can be reduced. In addition, the thickness (height) of the wiring can be reduced. As a result, it is possible to reduce the occurrence of shadows due to the wiring during illumination.

The short-circuit components other than the first pin line 2 are components such as electronic connectors, jumper resistors, or bridge resistors such as zero-ohm resistors. According to the main embodiment, the first exposed portions 22 of the first lead wires 2 can be connected to the first electrodes 41 of the plurality of first electrode groups 4 or connected to the second electrodes 42 of the plurality of first electrode groups 4 in a straddling manner by solder without using these short-circuiting members. Therefore, the cost required for the short-circuiting member can be reduced. For example, a step of attaching the first lead wire 2 extending from the power supply portion 94 to the short-circuit member is not required. Further, there is no need to prepare for mounting a short-circuiting member such as an electronic connector on the mounting surface a1 of the first substrate 9. According to the main embodiment, the first lead wires 2 may be connected to the substrate unit 8 by solder at an appropriate timing when the substrate unit 8 (see fig. 3) is assembled to the lighting apparatus 100. As a result, it is not necessary to connect the first lead wires 2 and then store the board unit 8 in a warehouse or the like before the board unit 8 is assembled into the lighting fixture 100. That is, since the substrate unit 8 is not heavy even if there are a plurality of substrate units, it is easy to perform stock management.

The structure of the first lead wires 2 and the structure of the first exposed portions 22 attached to the first electrodes 41 of the plurality of first electrode groups 4 will be described in detail with reference to fig. 4 and 5. As shown in fig. 5, the first exposed portion 22 includes a base end portion 23, a first contact portion 24, a non-contact portion 25, and a second contact portion 26. The first lead wire 2 connects the first covering portion 21, the base end portion 23, the first contact portion 24, the non-contact portion 25, and the second contact portion 26 in this order.

The proximal end portion 23 is a proximal end of the first exposed portion 22 with respect to the first covering portion 21. When the first exposed portion 22 is connected to the first electrodes 41 of the plurality of first electrode groups 4 in a straddling manner by solder, the base end portion 23 may or may not contact one first electrode 41A of the first electrodes 41 of the plurality of first electrode groups 4. When the first exposed portion 22 is connected to the second electrodes 42 of the plurality of first electrode groups 4 in a straddling manner by solder, the base end portion 23 may be in contact with one second electrode 42A of the second electrodes 42 of the plurality of first electrode groups 4, or may be out of contact with the one second electrode 42A.

The first coating portion 21 extends from the base end portion 23 toward the power supply portion 94.

When the first exposed portion 22 is connected to the first electrodes 41 of the plurality of first electrode groups 4 in a straddling manner by solder, the non-contact portion 25 is not in contact with the first electrodes 41 of the plurality of first electrode groups 4. When the first exposed portion 22 is connected to the second electrodes 42 of the plurality of first electrode groups 4 in a straddling manner by solder, the non-contact portion 25 is not in contact with the second electrodes 42 of the plurality of first electrode groups 4.

When the first exposed portion 22 is connected to the first electrodes 41 of the plurality of first electrode groups 4 in a straddling manner by solder, the first contact portion 24 contacts one first electrode 41A of the first electrodes 41 of the plurality of first electrode groups 4. When the first exposed portion 22 is connected to the second electrodes 42 of the plurality of first electrode groups 4 in a straddling manner by solder, the first contact portion 24 contacts one second electrode 42A of the second electrodes 42 of the plurality of first electrode groups 4.

When the first exposed portion 22 is connected to the first electrodes 41 of the plurality of first electrode groups 4 in a straddling manner by solder, the second contact portion 26 contacts the other first electrode 41B of the first electrodes 41 of the plurality of first electrode groups 4. When the first exposed portion 22 is connected to the second electrodes 42 of the plurality of first electrode groups 4 in a straddling manner by solder, the second contact portion 26 contacts the other second electrode 42B of the second electrodes 42 of the plurality of first electrode groups 4.

According to the main embodiment, since the first lead wire 2 is formed by connecting the first covering portion 21, the base end portion 23, the first contact portion 24, the non-contact portion 25, and the second contact portion 26 in this order, it is possible to easily align the first contact portion 24 and the second contact portion 26 with the solder melted in advance on the 2 electrodes while holding the first covering portion 21 of the first lead wire 2 with one hand, for example. Therefore, the operation time for connecting the plurality of first light emitting element groups 6 in parallel can be further shortened. Further, the width of the electrode may be larger than the size of the first conductive member Y1 of the first lead line 2, that is, the size of the core wire, and thus the degree of freedom in design can be increased.

(modification example)

Next, the lighting device 1 according to a modification of the main embodiment will be described with reference to fig. 6. The lighting device 1 according to the modification is mainly different from the lighting device 1 described with reference to fig. 4 in the following points: the liquid crystal display device includes a plurality of substrate units 8, wherein the second electrodes 42A and 42B are relay electrodes, the first lead wires 2B are replaced with relay wires J1, J2, J3, and J4, and the liquid crystal display device further includes a plurality of second light emitting element groups 7 and a plurality of second electrode groups 5. The other configurations of the illumination device 1 according to the modification are the same as those of the illumination device 1 described with reference to fig. 1 to 5. Hereinafter, the utility model of the modified example different from the main embodiment will be mainly described.

Fig. 6 is a plan view of the lighting device 1 according to the modification of the main embodiment. As shown in fig. 6, in the case where the first exposed portions 22 of the first lead wires 2 are connected to the first electrodes 41 of the plurality of first electrode groups 4 in a straddle-type manner by solder, the second electrodes 42 of the plurality of first electrode groups 4 may be relay electrodes for external electrodes. Similarly, when the first exposed portions 22 of the first lead wires 2 are connected to the second electrodes 42 of the plurality of first electrode groups 4 in a straddle-type manner by solder, the first electrodes 41 of the plurality of first electrode groups 4 may be relay electrodes for external electrodes. By using the substrate unit 8 as described above, a plurality of substrate units 8 can be connected in parallel.

For example, 2 substrate units 8 (a first substrate unit 8A and a second substrate unit 8B) are adjacently placed along the longitudinal direction of the substrate unit 8. The structure of the second substrate unit 8B is the same as that of the first substrate unit 8A, and therefore, description thereof is omitted. The second electrode 42A of the first substrate unit 8A and the second electrode 42B of the first substrate unit 8A are electrically connected in series to the first electrode 41A of the second substrate unit 8B and the first electrode 41B of the second substrate unit 8B, respectively. At this time, the second electrode 42A of the first substrate unit 8A and the first electrode 41A of the second substrate unit 8B are connected in series by the relay wiring J1. The second electrode 42B of the first substrate unit 8A and the first electrode 41B of the second substrate unit 8B are connected in series by a relay wiring J2. The relay wires J1 and J2 are, for example, PVC plastic power supply wires, tinned wires, or enameled wires. The relay wiring J1 is preferably arranged to be separate from the relay wiring J2. For example, the relay wiring J1 and the relay wiring J2 can be supplemented by using a tin-plated wire for the relay wiring J1 and the relay wiring J2. Therefore, the thickness of the wiring can be reduced. As a result, it is possible to reduce the occurrence of shadows due to the wiring during illumination.

According to the main embodiment, since the first electrodes 41 or the second electrodes 42 of the plurality of first electrode groups 4 can function as relay electrodes, the plurality of substrate units 8 can be connected. For example, a plurality of substrate units 8 are adjacently placed along the direction PD for connection. In the case where the substrate unit 8 is configured by a plurality of lighting devices 1, the substrate unit 8 may be used as any one of a substrate unit 8 disposed on an end portion on the input terminal side (hereinafter, referred to as "input-side substrate unit 8"), a substrate unit 8 disposed on an end portion on the output terminal side (hereinafter, referred to as "output-side substrate unit 8"), and a substrate unit 8 disposed at an intermediate position (hereinafter, referred to as "intermediate substrate unit 8"). That is, the substrate unit 8 can be compatible as the input-side substrate unit 8, the output-side substrate unit 8, and the intermediate substrate unit 8. As a result, the product specifications of the substrate units 8 can be integrated into 1 type. This makes it possible to facilitate inventory management and improve the versatility of the board unit 8.

As shown in fig. 6, the lighting device 1 preferably further includes a plurality of second electrode groups 5, a plurality of second light emitting element groups 7, and second lead wires 3. The plurality of second light emitting element groups 7 is an example of "a plurality of second load groups". The second pin line 3 is an example of a "second electric wire". The structures of the second electrode group 5, the second light emitting element group 7, and the second lead wire 3 are the same as those of the first electrode group 4, the first light emitting element group 6, and the first lead wire 2 described with reference to fig. 1 to 5, respectively.

Each of the plurality of second electrode groups 5 has a third electrode 51 and a fourth electrode 52. For example, each of the 2 second electrode groups 5 has a third electrode 51 and a fourth electrode 52. Specifically, the second electrode group 5(5A) has a third electrode 51(51A) and a fourth electrode 52 (52A). The second electrode group 5(5B) has a third electrode 51(51B) and a fourth electrode 52 (52B).

Each of the plurality of second light emitting element groups 7 has a plurality of second light emitting elements. For example, 2 second light emitting element groups 7 have 2 second light emitting elements 71 and 2 second light emitting elements 72, respectively. Specifically, the second light emitting element group 7(7A) has a second light emitting element 71(71A) and a second light emitting element 71 (71B).

The second light emitting element group 7(7B) has a second light emitting element 72(72A) and a second light emitting element 72 (72B). The plurality of second light-emitting elements 71(71A, 71B) is an example of the "plurality of second loads". The plurality of second light emitting elements 72(72A, 72B) is an example of the "plurality of second loads". In this specification, "the second light-emitting element 71" and "the second light-emitting element 72" may be collectively referred to as "the light-emitting element L". The second light emitting elements 71, 72 are preferably light emitting elements different from the first light emitting elements 61, 62. For example, the second light emitting element 71 is a light emitting element of a different color from the first light emitting element 61. The plurality of second light emitting elements 71 are electrically connected in series between the third electrode 51 and the fourth electrode 52. According to this preferred embodiment, the lighting device 1 may have a color-adjusting function.

The second pin line 3 has a second conductive member Y2 and a second insulator Z2. The second insulator Z2 covers the second conductive member Y2. The second lead wire 3 is, for example, a PVC plastic power wire, a tinned wire or an enameled wire. The second lead wire 3 includes a second coating portion 31 and a second exposed portion 32. In the second coating portion 31, the second conductive member Y2 is coated with the second insulator Z2. In the second exposed portion 32, the second conductive member Y2 is exposed from the second insulator Z2. A second exposed portion 32 is disposed on one end side of the second lead wire 3. The other end side of the second lead wire 3 extends to the outside of the first substrate 9 toward the power supply portion 94.

The second exposed portions 32 are connected to the third electrodes 51 of the plurality of second electrode groups 5 in a straddle-type manner by solder, or the second exposed portions 32 are connected to the fourth electrodes 52 of the plurality of second electrode groups 5 in a straddle-type manner by solder, whereby the plurality of second light emitting element groups 7 are electrically connected in parallel. The plurality of first light emitting element groups 6 and the plurality of second light emitting element groups 7 are electrically connected in parallel. Therefore, the number of the lead lines can be reduced. As a result, the minimum design size of the lighting device 1 can be reduced.

When the first substrate unit 8A and the second substrate unit 8B are placed adjacently along the longitudinal direction of the substrate unit 8, the fourth electrode 52A of the first substrate unit 8A and the fourth electrode 52B of the first substrate unit 8A are electrically connected in series to the third electrode 51A of the second substrate unit 8B and the third electrode 51B of the second substrate unit 8B, respectively. At this time, the fourth electrode 52A of the first substrate unit 8A and the third electrode 51A of the second substrate unit 8B are connected in series by the relay wiring J3. The fourth electrode 52B of the first substrate unit 8A and the third electrode 51B of the second substrate unit 8B are connected in series by a relay wiring J4. The relay wiring J3 and the relay wiring J4 have the same configuration as the relay wiring J1 and the relay wiring J2, and therefore, description thereof is omitted. For example, by using tin-plated wires for the relay wiring J3 and the relay wiring J4, the relay wiring J3 and the relay wiring J4 can be thinned. Therefore, the thickness of the wiring can be reduced. As a result, it is possible to reduce the occurrence of shadows due to the wiring during illumination.

As described above, the embodiments of the present invention are explained with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and can be implemented in various ways within a range not departing from the gist thereof. Further, various embodiments can be formed by appropriately combining a plurality of constituent elements of the embodiments of the present invention. For example, several components may be deleted from all the components shown in the embodiments. Moreover, the constituent elements in the different embodiments may be appropriately combined. For convenience of understanding, the drawings mainly schematically show the respective components, and for convenience of drawing, the thicknesses, lengths, numbers, intervals, and the like of the respective components may be different from those of the actual components. The speed, material, shape, size, and the like of each component shown in the above embodiments are only examples, and are not particularly limited, and various modifications may be made without substantially departing from the effect of the present invention.

(1) As described with reference to fig. 1 to 6, a preferred embodiment of the electronic device according to the present invention is the lighting device 1 including the LED light source, but the present invention is not limited thereto. The electronic device may be a lighting device having a light source (lighting load) other than an LED, for example. The electronic device may be a communication device, or may be an information processing device such as a personal computer or a server.

(2) As described with reference to fig. 1 to 6, the lighting device 1 is mounted in a lighting fixture 100 of a slim indirect lighting type, but the present invention is not limited thereto. The lighting device 1 may be mounted to a lighting fixture 100 such as a ceiling lamp or a down lamp, for example.

(3) As described with reference to fig. 1 to 6, the first exposed portions 22 of the first lead lines 2 are connected to the 2 first electrodes 41 or the 2 second electrodes 42 in a straddle-type manner by solder, but the present invention is not limited thereto. Depending on the number of systems connected in parallel, the first exposed portions 22 of the first lead wires 2 may be connected to 3 or more first electrodes 41 or 3 or more second electrodes 42 in a straddle-type manner by solder.

(4) As described with reference to fig. 1 to 6, in the substrate unit 8, the end portion on the distal end side is the input terminal side (or positive side) of the circuit and the end portion on the proximal end side is the output terminal side (or negative side) of the circuit when viewed from the direction PD, but the present invention is not limited thereto. For example, when viewed from the direction PD, the input terminal side (or positive side) of the circuit and the output terminal side (or negative side) of the circuit may be disposed at 2 corners of the substrate unit 8 on the distal end side.

Claims (6)

1. An electronic device is characterized in that a first electronic component is connected to a second electronic component,

includes a first substrate, a plurality of first electrode groups, a plurality of first load groups, and a first wire,

the first wire has a first conductive member and a first insulator covering the first conductive member,

each of the plurality of first electrode groups has a first electrode and a second electrode,

each of the plurality of first load groups has a plurality of first loads,

the plurality of first loads are electrically connected in series between the first electrode and the second electrode,

the first electric wire includes a first covering portion and a first exposed portion,

in the first covering part, the first conductive member is covered by the first insulator,

the first exposed portion, the first conductive member exposed from the first insulator,

the first exposed portion is disposed on one end side of the first wire, and the other end side of the first wire extends to the outside of the first substrate toward a power source,

the first exposed portions are connected to the first electrodes of the plurality of first electrode groups in a straddling manner by solder, or the first exposed portions are connected to the second electrodes of the plurality of first electrode groups in a straddling manner by solder, whereby the plurality of first load groups are electrically connected in parallel.

2. The electronic device of claim 1,

the first exposed portion includes a base end portion, a first contact portion, a non-contact portion, and a second contact portion,

the first coating portion, the base end portion, the first contact portion, the non-contact portion, and the second contact portion are connected in the stated order,

the base end portion is a base end of the first exposed portion with respect to the first covering portion,

the first coating portion extends from the base end portion toward the power source,

when the first exposed portion is connected straddling over the first electrodes of the plurality of first electrode groups by solder, the non-contact portion is not in contact with the first electrodes of the plurality of first electrode groups, the first contact portion is in contact with one of the first electrodes of the plurality of first electrode groups, the second contact portion is in contact with another one of the first electrodes of the plurality of first electrode groups,

when the first exposed portion is connected to the second electrodes of the plurality of first electrode groups in a straddling manner by solder, the non-contact portion is not in contact with the second electrodes of the plurality of first electrode groups, the first contact portion is in contact with one of the second electrodes of the plurality of first electrode groups, and the second contact portion is in contact with another one of the second electrodes of the plurality of first electrode groups.

3. The electronic device according to claim 1 or 2,

in a case where the first exposed portion is connected to the first electrode of the plurality of first electrode groups in a straddling manner by solder, the second electrode of the plurality of first electrode groups is a relay electrode for an external electrode,

in a case where the first exposed portion is connected to the second electrode of the plurality of first electrode groups in a straddling manner by solder, the first electrode of the plurality of first electrode groups is a relay electrode for an external electrode.

4. The electronic device according to claim 1 or 2,

the first load is a light emitting element.

5. The electronic device according to claim 1 or 2,

further comprises a plurality of second electrode groups, a plurality of second load groups and a second wire,

the second wire has a second conductive member and a second insulator covering the second conductive member,

each of the plurality of second electrode groups has a third electrode and a fourth electrode,

each of the plurality of second load groups has a plurality of second loads,

the plurality of second loads are electrically connected in series between the third electrode and the fourth electrode,

the second electric wire includes a second covering portion and a second exposed portion,

in the second covering part, the second conductive member is covered with the second insulator,

the second exposed portion, the second conductive member being exposed from the second insulator,

the second exposed portion is disposed on one end side of the second wire, and the other end side of the second wire extends to the outside of the first substrate toward the power supply,

the second exposed portions are connected to the third electrodes of the plurality of second electrode groups in a straddling manner by solder, or the second exposed portions are connected to the fourth electrodes of the plurality of second electrode groups in a straddling manner by solder, whereby the plurality of second load groups are electrically connected in parallel,

the plurality of first load groups and the plurality of second load groups are electrically connected in parallel.

6. The electronic device according to claim 5, wherein the second load is a light-emitting element different from the first load.

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