TW202035914A - Lighting device includes a light emitting module 62, an apparatus body 3 accommodating the light emitting module 62, and a pair of flat springs 70 - Google Patents

Abstract

無。

Description

Lighting device

This disclosure relates to a lighting device.

The conventional lighting device disclosed in Patent Document 1 discloses a ceiling-embedded lighting device, which includes a part of the device body extending in a direction orthogonal to the optical axis, a light-emitting module provided inside the device body, and the device body being fixed to Two installation springs perpendicular to the extension part of the device body. [Prior technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Publication No. 2018-198141

[The problem that the invention wants to solve]

In the conventional lighting device, since a part of the luminaire body extends in a direction orthogonal to the optical axis, the center of gravity is shifted from the optical axis to the side of this extending direction. On the other hand, the direction in which a part of the appliance body extends is perpendicular to the arrangement direction of the two springs. Therefore, in the conventional lighting device, the two springs cannot sufficiently support the main body of the fixture. Therefore, in order to support the lighting device, it is also considered to install a spring in the appliance body. However, due to the increase in the number of parts, the manufacturing cost of the lighting device increases.

Therefore, the purpose is to provide a lighting device that can improve the retention of the spring of the appliance body without increasing the number of parts. [Means to Solve the Problem]

To achieve the above object, one aspect of the lighting device of the present disclosure includes a light-emitting module, an appliance body accommodating the light-emitting module, and a pair of the appliance body arranged on the outer periphery of the appliance body and used to fix the appliance body on the ceiling. Spring; a part of the appliance body protrudes toward the direction intersecting the optical axis of the light emitted by the light-emitting module, and at least one spring of the pair of springs is arranged to be more protruding than a part of the appliance body including the optical axis The plane perpendicular to the direction is closer to the protruding side of a part of the appliance body. [Effects of Invention]

The lighting device of the present disclosure can improve the retaining force of the spring appliance body without increasing the number of parts.

[Form to implement the form]

Hereinafter, the embodiments of the present disclosure will be described in detail using drawings. In addition, the embodiments described below all show a specific example of the present disclosure. Therefore, numerical values, shapes, materials, constituent elements, arrangement of constituent elements, and connection forms shown in the following embodiments are just examples, and do not limit the interest of this disclosure. Therefore, the constituent requirements of the independent claims that show the highest concept of the present disclosure are not described in the constituent requirements of the following embodiments, and are described as arbitrary constituent requirements.

Moreover, each drawing is a schematic diagram, and may not be strictly illustrated. Therefore, for example, the scales and the like in each figure may not necessarily match. In addition, in each figure, the same reference numerals are attached to substantially the same structures, and repeated descriptions are omitted or simplified.

In addition, in the following embodiments, approximately parallel performance is used. For example, approximately parallel means not only completely parallel, but also substantially parallel, that is, including an error of, for example, a few %. In addition, "approximately parallel" means to be parallel in the range where the effects of the present disclosure can be exerted. Other uses of "approximate" are also the same.

Hereinafter, the lighting device of the embodiment will be described.

(Embodiment 1) [structure] Fig. 1 is a perspective view illustrating the lighting device 1 of the first embodiment. In FIG. 1, the optical axis direction of the light emitted from the lighting device 1 (specifically, the light-emitting module 62 described later) is defined as the positive X-axis direction (for example, the lower side of the lighting device 1), and a part of the luminaire body 3 is directed The direction of the outer diameter projecting in the direction orthogonal to the optical axis is defined as the positive direction of the Y axis, and the direction intersecting the positive direction of the X axis and the positive direction of the Y axis is defined as the positive direction of the Z axis. In addition, the directions shown in the figures following FIG. 2 are displayed corresponding to the directions shown in FIG. 1.

[Lighting device 1] As shown in Fig. 1, the lighting device 1 is installed on a ceiling and other building materials. For example, the lighting device 1 is a spotlight, a downlight, or the like. The lighting device 1 is a device that can illuminate a predetermined direction by irradiating light in a predetermined direction.

Fig. 2 is an exploded perspective view of the lighting device 1 of the first embodiment. 3 is a cross-sectional view of the cross-section of the lighting device 1 taken along the line III-III of FIG. 1. As shown in FIGS. 2 and 3, the lighting device 1 includes an appliance body 3, a pair of leaf springs 70, a mounting substrate 61, a light-emitting module 62, a power supply unit 63, a lamp holder 51, a lamp cover 54, and a transparent cover 55.

>Appliance 3> The appliance body 3 constitutes the housing of the lighting device 1. A part of the appliance body 3 protrudes toward a direction crossing the optical axis direction of the light emitted by the light emitting module 62 (the positive direction of the Y axis). That is, when the lighting device 1 is installed in the installation hole of the construction material, a part of the appliance body 3 extends along the ceiling. The optical axis direction referred to here is the main direction of the light emitted by the light emitting module 62. In this embodiment, the optical axis direction is approximately parallel to the positive X-axis direction.

As shown in FIG. 1, the appliance body 3 has a first housing 31, a second housing 32, and an outer cover 40.

>The first housing 31 and the second housing 32> The first housing 31 and the second housing 32 constitute a housing for housing the mounting substrate 61, the light-emitting module 62, and the power supply unit 63. The storage space formed by fixing the first casing 31 and the second casing 32 with screws or other fixing members forms a small first space on the side where the light-emitting module 62 is arranged, and the space for disposing the power supply unit 63 is formed larger than the first space The second space for bulging. The first housing 31 and the second housing 32 are examples of housings.

Fig. 4 is a plan view of the lighting device 1 of Embodiment 1 viewed from the negative X-axis side. As shown in FIGS. 2 and 4, the first housing 31 and the second housing 32 are more peripheral than the cylindrical outer cover 40 when the lighting device 1 is viewed from the negative X-axis direction side (along the optical axis direction). The face is more convex toward the outer diameter. In other words, when the lighting device 1 is installed in the installation hole of the construction material, the first housing 31 and the second housing 32 extend from the outer peripheral surface of the outer cover 40 along the construction material in the outer diameter direction. Here, the outer diameter direction is the positive direction of the Y axis. Therefore, the length in the Y-axis direction of the first housing 31 and the second housing 32 is greater than the radius of the outer cover 40.

As shown in FIGS. 1 and 3, the first housing 31 constitutes the bottom of the storage body. The first housing 31 is elongated in the Y-axis direction, and extends in the positive direction of the Y-axis so as to protrude from the outer peripheral surface of the outer cover 40. In addition, the first housing 31 is made of metal, and for example, is formed by bending a metal plate mainly composed of aluminum or iron.

The first housing 31 has a bottom plate portion 31a and a pair of first mounting portions 31b.

The bottom plate portion 31a is a flat plate that fixes the second housing 32 and the outer cover 40 in a predetermined posture and is elongated in the Y-axis direction. A pair of extension pieces 31a2 are formed in the negative direction of the Y-axis of the bottom plate portion 31a so as to extend from a part of both end edges of the bottom plate portion 31a in the Z-axis direction. The end edges of the pair of extension pieces 31a2 protrude obliquely to the Y-axis direction.

In addition, an opening 31a1 for exposing the light emitting module 62 between the pair of extending pieces 31a2 is formed in the bottom plate portion 31a. The opening 31a1 is formed in the negative direction of the Y-axis of the bottom plate portion 31a.

As shown in Figures 1 and 2, a pair of first mounting portions 31b are arranged on the Y-axis negative side of the bottom plate portion 31a, are located on the outer peripheral side of the outer cover 40, and are provided on both sides of the opening 31a1 of the bottom plate portion 31a . The pair of first mounting portions 31b are integrally provided in the first housing 31 so as to correspond one-to-one with the pair of extension pieces 31a2 of the bottom plate portion 31a. Since the pair of first mounting portions 31b are connected to the ends of the pair of extension pieces 31a2, when the lighting device 1 is viewed from the negative side of the X axis (along the optical axis direction), it is used to mount the outer periphery of the leaf spring 70 The side surface 31b2 is inclined to the XY plane. The surface 31b2 of a pair of 1st installation part 31b is a surface which opposes the 2nd installation part 71 of the leaf spring 70 mentioned later.

As shown in FIG. 4, when the lighting device 1 is viewed from the negative side of the X-axis (for example, the upper side of the lighting device 1), at least one of the pair of first mounting portions 31b and the other first mounting portion 31b The setting portion 31b is arranged to be point-symmetrical to the center of the appliance body 3, that is, the center line O. The pair of first mounting portions 31b are arranged such that their arrangement is inclined at a predetermined angle with respect to the Z-axis direction and the Y-axis direction. In this embodiment, when the lighting device 1 is viewed from the negative direction side of the X-axis, at least one of the first mounting portions 31b of the pair of first mounting portions 31b is more than the optical axis (optical axis) of the lighting device 1 Direction) In the area where the line parallel to the Z-axis direction of the approximately aligned center line O is on the positive side of the Y-axis, it is arranged in the area A1 or hatched from the line in the positive direction of the Y-axis to the line in the positive direction of the Z-axis The area A2 is hatched from the line in the positive direction of the Y axis to the line in the negative direction of the Z axis (an example of the second direction). That is, since a part of the appliance body 3 extends in the positive direction of the Y-axis, the center of gravity H of the lighting device 1 is shifted from the center line O toward the positive direction of the Y-axis. When the center of gravity H is shifted, when the lighting device 1 is installed in the installation hole of the construction material, an unbalanced load is applied to the installation hole of the construction material. In this type of lighting device 1, at least one of the pair of first installation portions 31b is arranged to support the deviated center of gravity H.

In addition, the other first mounting portion 31b of the pair of first mounting portions 31b can also be arranged in the area A2 from the line in the positive direction of the Y axis to the line in the negative direction of the Z axis or in the positive direction of the Y axis. The area A1 between the line and the line in the positive direction of the Z axis.

In addition, since at least one of the first mounting portions 31b of the pair of first mounting portions 31b is arranged in the area A1 from the line in the positive direction of the Y-axis to the line in the positive direction of the Z-axis, or from the positive direction of the Y-axis. The area A2 between the line and the line in the negative direction of the Z-axis is sufficient. Therefore, the other first installation portion 31b of the pair of first installation portions 31b may also be arranged in an area other than the area A1 and the area A2.

As shown in FIGS. 2 and 3, the second housing 32 constitutes the top plate portion of the storage body. That is, the second housing 32 is arranged on the negative X-axis side of the first housing 31. The second housing 32 functions as a cover covering the mounting board 61 and the power supply unit 63. In addition, the second housing 32 is made of metal, and is formed by bending a metal plate mainly composed of, for example, aluminum or iron.

The second housing 32 has a top plate 32a and a standing wall portion 32b.

A mounting surface 32a1 for fixing the mounting substrate 61 is formed on the top plate 32a. The top plate 32a has a step that rises in the X-axis negative direction from the mounting surface 32a1, so that the power supply unit 63 avoids the mounting surface 32a1. That is, the portion of the top plate 32a corresponding to the power supply portion 63 bulges in the negative direction of the X-axis. In addition, in a section of the top plate 32a, a part of the inclined surface is formed so as to narrow the storage space for storing the power supply unit 63 as it advances in the negative X-axis direction.

The standing wall portion 32b is a wall portion rising from the top plate 32a in the positive direction of the X-axis. A power connector 39 for supplying alternating current to the power supply unit 63 is fixed to the vertical wall portion 32b. The power connector 39 is electrically connected to the power supply unit 63 by wiring, and supplies the AC current supplied from the city power to the power supply unit 63. The power connector 39 may also be included in the structure of the appliance body 3.

>Outer cover 40> The outer cover 40 is a hollow truncated cone-shaped housing that opens on both sides of the X-axis direction. The X-axis negative side end of the outer cover 40 is fixed to the first housing 31 with a fixing member such as screws so as to surround the opening 31a1 of the bottom plate portion 31a of the first housing 31. The inside of the outer cover 40 can allow the light emitted by the light-emitting module 62 to pass through.

The outer cover 40 has a cylindrical portion 41 and a frame portion 42.

The cylindrical part 41 is a truncated cone-shaped outer covering part. The cylindrical portion 41 increases in diameter from the negative X-axis direction toward the positive X-axis direction. The center line of the barrel 41 is approximately aligned with the center line O described above. The diameter of the barrel 41 is smaller than the diameter of the installation hole of the construction material.

The inside of the barrel 41 allows the light emitted by the light-emitting module 62 to pass through. The inner peripheral surface of the cylindrical portion 41 functions as a light reflection cover for controlling the light distribution of the light emitted from the light transmission cover 55 in a predetermined direction.

The frame 42 holds the circular edge of construction materials such as the ceiling on which the lighting device 1 is installed. The frame portion 42 extends in the outer diameter direction from the lower end edge (the end edge in the positive X-axis direction) of the cylindrical portion 41. The outer diameter of the frame 42 is larger than the inner diameter of the installation hole of the construction material for installing the lighting device 1. The frame portion 42 and the pair of leaf springs 70 pinch the construction material, thereby stably fixing the lighting device 1 to the construction material.

>Leaf spring 70> A pair of leaf springs 70 are used to install and fix the lighting device 1 to an elastic member formed in an installation hole of a construction material, and are arranged on the outer peripheral side of the outer cover 40. The pair of leaf springs 70 are mounted on a pair of first mounting portions 31b of the first housing 31 one by one. A pair of leaf springs 70 and the frame 42 of the outer cover 40 hold the building materials together. The leaf spring 70 is an example of a spring.

In addition, three or more leaf springs 70 may be provided in the lighting device 1.

The pair of leaf springs 70 are formed of a metal material such as steel. In addition, the thickness and width of the pair of leaf springs 70 are appropriately set according to the Young's coefficient of the material forming the pair of leaf springs 70, the weight of the lighting device 1, etc., so that the lighting device 1 can be stably fixed to construction materials. In addition, linear springs can be used, or other well-known springs can be used to replace the pair of leaf springs 70.

As shown in FIG. 4, a pair of leaf springs 70 are installed at the position of the first installation portion 31b of the first housing 31. In the present embodiment, when the lighting device 1 is viewed from the negative direction side of the X-axis, the pair of leaf springs 70 are arranged in a posture that extends away from the center line O, and the arm portions 72 will be described later.

In addition, when the lighting device 1 is viewed from the negative side of the X-axis, at least one of the pair of leaf springs 70 is arranged on a plane perpendicular to the direction that includes the center line O and protrudes from a part of the luminaire body 3. (XZ plane) is closer to the side where a part of the appliance body 3 protrudes (the side in the positive direction of the Y axis). That is, at least one of the leaf springs 70 of the pair of leaf springs 70 is arranged on the positive side of the Y-axis from the straight line V2 in FIG. 4. In this embodiment, when the lighting device 1 is viewed from the negative side of the X-axis, the angle between the line showing the point of the center line O and the center of gravity H and the line in the direction in which at least one of the leaf springs 70 extends from the center line O Below 90 degrees.

In addition, the above-mentioned "orthogonal" not only means complete orthogonality, but also means substantially orthogonality, that is, including an error of about several %, for example.

The pair of leaf springs 70 have a second mounting portion 71 and an arm portion 72, respectively.

The second mounting portion 71 is a base end arranged along the outer peripheral surface of the outer cover 40, and has a plate shape extending in the X-axis direction. The second mounting portion 71 is mounted on the first mounting portion 31b of the first housing 31.

When the lighting device 1 is viewed from the negative side of the X-axis, since the surface 31b2 of the first mounting portion 31b is inclined to the X-Y plane, the second mounting portion 71 is also mounted to be inclined to the X-Y plane.

The arm portion 72 is connected to the end edge on the positive X-axis direction of the second mounting portion 71 and is a plate-shaped free end extending in a direction away from the outer peripheral surface of the outer cover 40. When the lighting device 1 is installed in the installation hole of the construction material, the arm 72 uses the restoring force of the arm 72 to apply stress to the installation hole of the construction material toward the positive X-axis direction.

When the lighting device 1 is viewed from the X-axis negative direction side, the arm portion 72 of at least one of the pair of leaf springs 70 is arranged in the areas A1 and A2. That is, the arm portion 72 of at least one of the leaf springs 70 is configured to support the deviated center of gravity H. Therefore, at least one of the leaf springs 70 supports the unbalanced load of the appliance body 3.

When the lighting device 1 is viewed from the negative X-axis side, the arm 72 of one of the leaf springs 70 extends from the outer circumferential surface of the outer cover 40 and the arm 72 of the other leaf spring 70 extends from the outer cover 40 The extending direction of 40 is on the same straight line V1.

>Mounting base 61> As shown in Figs. 2 and 3, the mounting substrate 61 is a substrate on which electronic components constituting the power supply circuit such as the light-emitting module 62 and the power supply unit 63 are mounted. The mounting substrate 61 is a plate that is elongated in the Y-axis direction and has a rectangular plane when viewed from above. The mounting substrate 61 is, for example, a ceramic substrate, a resin substrate, or an insulating metal base substrate. A pair of electrode terminals (a positive electrode terminal and a negative electrode terminal) (not shown) (not shown in the figure) that receive DC power from the power supply section 63 is formed on the mounting substrate 61 so that the light-emitting module 62 emits light. The electrode terminals are electrically connected to the power supply portion 63 through the pattern of the substrate.

The mounting substrate 61 is fixed to the top plate 32a of the second housing 32 with fixing members such as screws. Specifically, when the lighting device 1 is viewed from the X-axis negative direction side, the mounting substrate 61 is fixed to the top plate 32 a of the second housing 32 and is superimposed on the mounting surface 32 a 1 of the outer cover 40. Since the installation surface 32a1 is approximately parallel to the Y-Z axis direction, the mounting substrate 61 is also maintained approximately parallel to the Y-Z axis direction. In this way, the mounting substrate 61 is arranged in the storage space formed by the first housing 31 and the second housing 32 so as to extend from the mounting surface 32a1 in the positive direction of the Y axis.

>Lighting Module 62> The light emitting module 62 is an LED (Light Emitting Diode) module that emits predetermined light radially. In this embodiment, the light-emitting module 62 is configured to emit white light, for example. For example, the light-emitting module 62 is composed of COB (Chip On Board) type LEDs, has plural blue LEDs of bare crystals (LED chips) mounted on the mounting substrate 61, and seals the blue LEDs. Sealing member with yellow phosphor.

The light emitting module 62 is mounted on the surface of the mounting substrate 61 on the negative side of the Y axis and on the positive side of the X axis. Therefore, the light emitting module 62 emits light in the positive direction of the X axis. The direction in which the light emitting module 62 emits in the positive direction of the X axis is the optical axis direction. The light emitted by the light-emitting module 62 passes through the opening 52 of the lamp holder 51, the lampshade 54, the transparent cover 55, and the cylinder 41 of the outer cover 40 described later.

>Power Supply Department 63> The power supply unit 63 is a power supply module in which a lighting circuit 63a for supplying power for lighting the light-emitting module 62 is installed. The lighting circuit 63a converts the alternating current supplied from the wiring connected to the power supply unit 63 into a direct current, and supplies the converted direct current to the light emitting module 62 through the pattern of the substrate.

The lighting circuit 63a is mounted on the opposite side of the surface where the light-emitting module 62 is mounted on the mounting board 61 in the storage space formed by the first housing 31 and the second housing 32. That is, the lighting circuit 63a is mounted on the surface of the mounting substrate 61 on the positive side of the Y-axis and on the positive side of the X-axis.

>Lamp holder 51> The socket 51 is a ring-shaped support member that is fixed to the mounting substrate 61 with a fixing member such as screws to restrict the position of the mounting substrate 61.

An opening 52 and a plurality of screw holes are formed in the socket 51.

The opening 52 is a part where the light emitting module 62 is exposed. The opening surface of the opening portion 52 corresponds to overlap with the opening surface of the opening 31a1 of the bottom plate portion 31a of the first casing 31.

The plurality of screw holes are holes for fixing the lamp holder 51 to the mounting substrate 61 with fixing members such as screws. Specifically, the socket 51 is fixed to the mounting surface 32a1 by a fixing member in a state where the mounting substrate 61 is sandwiched together with the mounting surface 32a1 of the second housing 32, and the mounting substrate 61 is pressed to the mounting surface 32a1. In this way, the mounting substrate 61 is fixed in a state in which it is in close contact with the mounting surface 32a1. Thereby, the heat generated in the light-emitting module 62 is conducted to the second casing 32 with good efficiency. The socket 51 is made of a resin material such as polybutylene terephthalate (PBT) and polycarbonate.

>Lampshade 54> The lampshade portion 54 has a mirror surface for controlling light distribution by reflecting the light emitted from the light-emitting module 62 toward the transparent cover 55. The lampshade portion 54 is a mirror surface whose inner surface is made of metal such as aluminum, and it can also be formed using a hard white resin material such as polybutylene terephthalate.

The lampshade 54 has a bottomless cylindrical shape that opens in the X-axis direction. The shape of the lampshade 54 is configured such that the inner diameter gradually increases from the end of the light from the light emitting module 62 incident side (X-axis negative direction side) to the end of the light emitting side (X-axis positive direction side) The truncated cone shape.

The lampshade portion 54 is fixed to the bottom plate portion 31a of the first housing 31 with fixing members such as screws. The end of the lampshade 54 on the negative side of the X-axis is inserted into the opening 31a1 of the bottom plate 31a of the first housing 31 and the opening 52 of the lamp holder 51, and is arranged to surround the light emitting module 62. In addition, the center line of the lampshade portion 54 is approximately aligned with the center line O.

>Translucent cover 55> The translucent cover 55 is formed as a translucent dome-shaped optical cover into which the light reflected by the lampshade portion 54 and the light from the light emitting module 62 can enter. The translucent cover 55 is housed in the outer cover 40. Viewing the lighting device 1 from the positive direction of the X axis, the transparent cover 55 is fixed to the outer cover 40 in a state of covering the lampshade portion 54 and the light-emitting module 62. In addition, the center line of the outer cover 40 is approximately aligned with the center line O.

In addition, the light-transmitting cover 55 may also have a function of controlling the light distribution of the light reflected by the lampshade portion 54 and emitting it. For example, the light-transmitting cover 55 may also be a Freinel lens. The light-transmitting cover 55 is formed using a light-transmitting material, for example, a transparent resin material such as acrylic or polycarbonate (PC), or a transparent material such as a glass material.

In this kind of lighting device 1, the center of gravity H of the lighting device 1 is offset from the center line O toward the positive direction of the Y axis, and at least one of the pair of leaf springs 70 supports the unbalanced load of the lighting device 1. Thereby, the lighting device 1 is stably held in the installation hole of the construction material.

[Effect] Next, the effect of the lighting device 1 of this embodiment will be described.

As described above, the lighting device 1 of this embodiment includes a light-emitting module 62, an appliance body 3 that houses the light-emitting module 62, and a pair of leaf springs arranged on the outer periphery of the appliance body 3 and used to fix the appliance body 3 to the ceiling. 70. In addition, a part of the appliance body 3 protrudes toward the direction intersecting the optical axis of the light emitted by the light emitting module 62. In addition, at least one (at least one) of the pair of leaf springs 70 is arranged closer to the appliance body than a plane including the optical axis (center line O) and perpendicular to the direction in which a part of the appliance body 3 protrudes 3 part protruding side.

For example, in the conventional lighting device, the center of gravity is shifted from the center line of the lighting device toward a part of the luminaire body. Therefore, as shown by the two-dot chain line in Figure 4, when the arrangement direction (Z-axis direction) of the pair of leaf springs 70a is arranged to be orthogonal to the direction in which a part of the appliance body extends (Y-axis positive direction), even if Simply install the lighting device in the installation hole of the construction building material, but it is still not easy to install the lighting device in the installation hole of the construction building material more stably.

However, in this lighting device 1, since at least one leaf spring 70 of the pair of leaf springs 70 is arranged on the side where a part of the fixture body 3 protrudes than the straight line V2 shown by the two-dot chain line in FIG. 4, Therefore, the unbalanced load of the lighting device 1 can be supported. Therefore, the lighting device 1 can be stably installed in the installation hole of the construction material, and there is no need to install a new leaf spring in the lighting device 1.

Therefore, in this lighting device 1, the retaining force of the appliance body 3 of the leaf spring 70 can be improved without increasing the number of parts. In this way, since there is no need to increase the number of parts such as the leaf spring 70, the increase in the manufacturing cost of the lighting device 1 can be suppressed.

In addition, in the lighting device 1 of this embodiment, the pair of leaf springs 70 are arranged so as to be point-symmetrical to the optical axis direction when the lighting device 1 is viewed from above along the optical axis direction.

For example, if one of the leaf springs and the other leaf spring are not arranged to be point-symmetrical to the center line of the appliance body, it is not easy to fold one of the leaf springs and the other leaf spring to stand upright. One leaf spring and the other leaf spring are folded to be clamped simultaneously from both sides of the appliance body.

However, according to this embodiment, one of the leaf springs 70 and the other leaf spring 70 are symmetrical to the center point of the appliance body 3. Therefore, when the pair of leaf springs 70 are folded upright, one of the leaf springs 70 and the other leaf spring 70 can be folded at the same time so as to be sandwiched from both sides of the appliance body 3. That is, a pair of leaf springs 70 can be easily folded. Therefore, for example, when the lighting device 1 is packaged, it is suitable for installation in an installation hole of a building material.

In addition, in the lighting device 1 of this embodiment, one of the pair of springs and the other spring are respectively the leaf springs 70. In addition, the direction in which the arm 72 of one leaf spring 70 extends from the appliance body 3 and the direction in which the arm 72 of the other leaf spring 70 extends from the appliance body 3 are on the same straight line.

According to this, the arm 72 of one of the leaf springs 70 and the other arm 72 can be folded to clamp the appliance body 3. Therefore, the pair of leaf springs 70 can be folded easily.

In addition, in the lighting device 1 of this embodiment, the luminaire body 3 has an outer cover 40 through which the light emitted by the light-emitting module 62 passes, a fixed outer cover 40, and a first housing 31 that houses the light-emitting module 62 And the second housing 32. In addition, when the lighting device 1 is viewed in a plan view along the optical axis direction, a part of the first housing 31 and the second housing 32 protrudes in the outer diameter direction than the outer peripheral surface of the outer cover 40.

When viewing the lighting device 1 along the negative direction of the X-axis, if a part of the first housing 31 and the second housing 32 protrudes from the outer peripheral surface of the outer cover 40, the center of gravity H will deviate from the center line O in the positive direction of the Y-axis shift. However, according to this, no matter what kind of lighting device whose center of gravity H is offset from the center line O toward the positive direction of the Y-axis, the unbalanced load of the lighting device 1 can be supported by at least one leaf spring 70. Therefore, the lighting device 1 can be stably installed in the installation hole of the construction material.

In addition, in the lighting device 1 of the present embodiment, the first housing 31 and the second housing 32 have a pair of mounting portions 31b that are mounted so that a pair of leaf springs 70 can correspond one to one. In addition, when the lighting device 1 is viewed from above along the optical axis, the surface 31b2 of at least one of the pair of first mounting parts 31b on the side where the leaf spring 70 is mounted protrudes to a part of the luminaire body 3. The direction is inclined.

According to this, at least one leaf spring 70 can be reliably arranged on the positive direction side of the Y axis than the line V2 shown in FIG. 4.

In addition, the lighting device 1 of this embodiment further includes a lighting circuit 63a for supplying power for lighting the light-emitting module 62, and a mounting substrate 61 on which the lighting circuit 63a and the light-emitting module 62 are mounted. In addition, the lighting circuit 63 a and the mounting board 61 are housed in the first case 31 and the second case 32.

According to this, the mounting substrate 61 on which the light-emitting module 62 is mounted and the mounting substrate 61 on which the lighting circuit 63a is mounted can be the same mounting substrate. Therefore, the number of parts can be reduced compared with the case where the light emitting module 62 and the lighting circuit 63a are provided with different mounting substrates 61. As a result, in this lighting device 1, it is possible to suppress the increase in manufacturing cost.

In addition, since the lighting circuit 63a, the mounting board 61 and the like are housed in the first housing 31 and the second housing 32, the center of gravity of the lighting device 1 in the positive direction of the Y axis from the center line O is more clearly shifted. However, according to this embodiment, at least one leaf spring 70 can support the unbalanced load of the lighting device 1. (Embodiment 2) The structure of the lighting device 1 of this embodiment is demonstrated. Fig. 5 is a partially enlarged view of the first housing 31 and the leaf spring 70 of the lighting device 1 on the line V-V of Fig. 2. When the other structure of this embodiment is not specifically stated, it is the same as that of Embodiment 1, and the same symbol is attached to the same structure, and the detailed description about the structure is abbreviate|omitted. >Leaf spring 70>

The first mounting portion 31b of the leaf spring 70 has a pair of guide portions 131, a groove portion 133, a locking portion 132, and a restricting portion 134.

The guide portion 131 slidably guides the second installation portion 71 along the surface 31 b 2 of the first installation portion 31 b facing the second installation portion 71. Specifically, the pair of guide portions 131 have a claw shape protruding from the surface 31b2 of the first mounting portion 31b, and are elongated in the X-axis direction. In addition, the pair of guide portions 131 and the second mounting portion 71 are engaged to sandwich the two end edges of the approximately rectangular plate-shaped second mounting portion 71. The pair of guide portions 131 restrict the movement of the second mounting portion 71 in a direction opposite to the direction in which the claw portion 73 of the leaf spring 70 protrudes, and movement in a horizontal direction perpendicular to the direction in which the claw portion 73 protrudes. That is, the pair of guide parts 131 allow the sliding direction of the second mounting part 71. In this embodiment, the pair of guides 131 allow movement in the X-axis direction. The installation direction in Figure 5 is an example of the sliding direction.

In addition, the guide 131 does not necessarily need a pair. The guide portion 131 only needs to guide the second mounting portion 71 so as to allow the sliding movement of the second mounting portion 71 in a direction crossing the direction in which the claw portion 73 protrudes. Therefore, the guide portion 131 may be one or three or more, and the shape is not limited to this embodiment.

The groove portion 133 is a groove formed in the first mounting portion 31b to allow the claw portion 73 to pass through. The groove portion 133 extends upward (the X-axis negative direction) from the lower end edge (the end edge in the X-axis positive direction) of the first installation portion 31b when the lighting device 1 is installed on the ceiling. That is, the longitudinal direction (X-axis direction) of the groove portion 133 is approximately the same direction as the sliding direction.

In this embodiment, the bottom 133a is formed in the groove part 133, but the bottom 133a may not be formed. That is, the groove portion 133 may also be notched. In addition, at this time, the locking portion 132 described later may also be formed on the side surface of the groove portion 133.

Moreover, the depth of the groove part 133 is deeper than the height of the claw part 73 mentioned later. Furthermore, the width of the groove portion 133 is larger than the width of the claw portion 73. Therefore, the groove portion 133 can pass the claw portion 73. Here, the height of the claw portion 73 is a length protruding from the back side of the second installation portion 71 toward the first installation portion 31b.

The locking portion 132 is formed on the bottom 133a of the groove portion 133 and is used to install the second mounting portion 71 on the convex portion of the first mounting portion 31b. The shape of the locking portion 132 is hemispherical. In addition, the shape of the locking portion 132 is not limited to a hemispherical shape, but may be an arch shape, etc., and is not particularly limited.

In addition, the height of the locking portion 132 is greater than the depth of the groove portion 133 minus the height of the claw portion 73 protruding toward the first mounting portion 31 b, and is smaller than the depth of the groove portion 133. Therefore, when the second mounting portion 71 is mounted on the first mounting portion 31b, the pawl portion 73 contacts the locking portion 132 while sliding on the surface of the locking portion 132, and the pawl 73 passes through the groove portion while being 133.

The locking portion 132 is provided on the terminal side in the sliding direction (X-axis negative direction) when the second mounting portion 71 is mounted on the first mounting portion 31b. That is, the locking portion 132 is formed on the upper side (X-axis negative direction side) of the groove portion 133 and on the lower side (X-axis positive direction side) of the restricting portion 134.

The restricting portion 134 blocks the claw portion 73 that slides over the locking portion 132 when the second mounting portion 71 is slid from the lower end edge of the first mounting portion 31b. That is, the restricting portion 134 is the terminal portion of the groove portion 133 and serves as a segment to the bottom portion 133 a of the groove portion 133.

The pair of leaf springs 70 have claws 73 in addition to the second mounting portion 71 and the arm portion 72, respectively.

In the second mounting portion 71, a slit portion 74 is formed around the claw portion 73. The gap portion 74 is a notch formed around the claw portion 73 and has a U-shape.

The claw portion 73 is a locking piece integrally provided on the second attachment portion 71 and is formed in the central portion of the second attachment portion 71. The claw portion 73 is locked to the locking portion 132 of the first mounting portion 31 b and is blocked by the restricting portion 134. Specifically, the claw portion 73 has a tongue shape formed on the second mounting portion 71 and extending in the negative direction of the X-axis. When the second mounting portion 71 is mounted on the first mounting portion 31b, its front end faces the first mounting portion 31b. 1 The mounting portion 31b protrudes. Thereby, the claw portion 73 can be elastically deformed in the direction approaching the first mounting portion 31b and the direction away from it.

In addition, the thickness of the claw portion 73 is smaller than the distance between the locking portion 132 and the restricting portion 134, it is needless to say.

[Installation of the leaf spring 70 on the main body 3] Next, the procedure of installing the leaf spring 70 to the first installation portion 31b of the first housing 31 will be described. In addition, there is a pair of the first mounting portion 31b and the leaf spring 70, and each of them will be described here.

6A is an enlarged partial enlarged cross-sectional view of the cross section of the first housing 31 and the leaf spring 70 before the leaf spring 70 is installed on the first installation portion 31b of the first housing 31 on the VIA-VIA line of FIG. 2 . 6B is a partially enlarged cross-sectional view of the cross section of the first housing 31 and the leaf spring 70 after the leaf spring 70 is installed on the first mounting portion 31 b of the first housing 31.

As shown in FIG. 6A, the leaf spring 70 is arranged on the lower side of the first installation portion 31b of the first housing 31, and the second installation portion 71 of the leaf spring 70 is inserted in the installation direction and fitted into the 1 A pair of guide portions 131 of the mounting portion 31b. At this time, the claw portion 73 of the leaf spring 70 penetrates the groove portion 133.

Here, in FIG. 6B, the height T1 of the locking portion 132 is greater than the depth T3 of the groove portion 133 minus the height T2 of the claw portion 73 protruding toward the first mounting portion 31b, and is smaller than the groove portion 133 The depth T3. Thereby, when the second mounting portion 71 is inserted into the first mounting portion 31b, the claw portion 73 of the leaf spring 70 shown by a two-dot chain line contacts the locking portion 132 of the groove portion 133. The pawl portion 73 reaches up to the locking portion 132, and the pawl portion 73 is curved in a direction opposite to the direction in which the first mounting portion 31b protrudes, and slides on the surface of the locking portion 132. That is, when the claw portion 73 reaches the locking portion 132, the claw portion 73 elastically deforms in the direction in which the locking portion 132 protrudes. Then, when the claw portion 73 passes the locking portion 132, the elastically deformed claw portion 73 returns to its original shape by the restoring force.

Furthermore, when the second mounting portion 71 is pressed in, the claw portion 73 abuts against the restricting portion 134 and is blocked. In this way, the leaf spring 70 is installed in the first installation portion 31b in a predetermined posture via the pair of guide portions 131, the locking portion 132, and the restricting portion 134.

In this way, after the pair of leaf springs 70 are fixed to the first housing 31, the outer cover 40 is fixed to the first housing 31. At this time, the pair of leaf springs 70 are also supported by the frame 42 of the outer cover 40. Therefore, in this lighting device 1, the pair of leaf springs 70 not only restrict their movement in the positive X-axis direction by the claws 73 and the restricting portion 134, but also restrict their movement in the positive X-axis direction by the frame 42 of the outer cover 40. mobile.

Of course, the pair of leaf springs 70 also use the pair of guide portions 131 to restrict movement in the outer diameter direction of the cylindrical portion of the outer cover 40. Therefore, the pair of leaf springs 70 are firmly fixed to the appliance body 3.

[Effect] Next, the effect of the lighting device 1 of this embodiment will be described.

As described above, the lighting device 1 of the present embodiment includes the appliance main body 3 having the first mounting portion 31b, and a plurality of leaf springs 70 for fixing the appliance main body 3 to the ceiling. In addition, the plurality of leaf springs 70 respectively have a second attachment portion 71 attached to the first attachment portion 31b, and a claw portion 73 that protrudes toward the first attachment portion 31b and is locked to the first attachment portion 31b. . In addition, the first installation portion 31b has a guide portion 131 that slidably guides the second installation portion 71 along the surface of the first installation portion 31b facing the second installation portion 71, and a pawl portion 73. Through the groove portion 133.

For example, FIG. 7 is a partially enlarged view of the first housing 230 and the leaf spring 70 of the comparative example. As shown in FIG. 7, when installing the leaf spring 70 on the spring support portion 231b, the leaf spring 70 is inserted into the guide portion 231 of the spring support portion 231b from the upper side of the spring support portion 231b to the lower side. At this time, since the claw portion 73 of the leaf spring 70 abuts the spring support portion 231b, the leaf spring 70 is strongly inserted into the spring support portion 231b or the claw portion 73 of the leaf spring 70 is bent while bending the leaf spring. 70 is inserted into the spring support portion 231b. In this case, it is not easy to install the leaf spring 70 on the spring support portion 231b. When such installation is performed, due to the strength of the applied force, the claw portion 73 is deformed and floats from the concave portion 233, and the claw portion 73 may not be locked in the concave portion 233. At this time, the leaf spring 70 is easily detached from the spring support portion 231b.

However, in the lighting device 1 of this embodiment, since it is not necessary to bend the claws excessively, there is no possibility that the claws 73 will be deformed by the grooves 133 through which the claws 73 pass, and installation is not easy and labor-intensive. .

Therefore, in the lighting device 1 of the present embodiment, the leaf spring 70 can be supported by the first mounting portion 31b, and the leaf spring 70 can be easily mounted on the first mounting portion 31b.

Furthermore, in the lighting device 1 of this embodiment, when the lighting device 1 is installed on the ceiling, the groove portion 133 extends upward from the lower edge of the first installation portion 31b.

According to this, the pair of leaf springs 70 can be inserted and installed from the lower side of the first installation portion 31b.

In addition, in the lighting device 1 of the present embodiment, the first mounting portion 31b further has a locking portion 132 for locking the claw portion 73. Furthermore, when the second mounting portion 71 is slid from the lower end edge of the first mounting portion 31b, the first mounting portion 31b has a restriction portion 134 that blocks the claw portion 73 that slides over the locking portion 132.

According to this, with the claw portion 73 being arranged between the locking portion 132 and the restricting portion 134, the second mounting portion 71 can be mounted on the first mounting portion 31b in a desired posture.

In addition, in the lighting device 1 of this embodiment, the locking portion 132 is formed on the convex portion of the groove portion 133.

According to this, by the engagement of the claw portion 73 with the locking portion 132, the locking portion 132 can lock the claw portion 73.

In addition, in the lighting device 1 of this embodiment, the locking portion 132 is formed on the bottom portion 133 a of the groove portion 133. Furthermore, the height of the locking portion 132 is greater than the depth of the groove portion 133 minus the height of the claw portion 73 protruding toward the first mounting portion 31 b, and is smaller than the depth of the groove portion 133.

According to this, the locking portion 132 can reliably lock the claw portion 73.

In addition, in the lighting device 1 of this embodiment, the shape of the locking portion 132 is hemispherical.

According to this, since the second mounting portion 71 easily slides on the surface of the locking portion 132, it is easy to mount the leaf spring 70 to the first mounting portion 31b.

In addition, in the lighting device 1 of the present embodiment, the locking portion 132 is provided on the terminal side in the sliding direction when the second mounting portion 71 is mounted on the first mounting portion 31b.

According to this, the leaf spring 70 can be mounted on the first mounting portion 31b so that the leaf spring 70 will not be separated from the first mounting portion 31b in the negative X-axis direction. Therefore, the leaf spring 70 can be more firmly fixed to the first mounting portion 31b.

In addition, in the lighting device 1 of this embodiment, the outer cover 40 is supported so that the restricting portion 134 sandwiches the plurality of leaf springs 70.

According to this, since the outer cover 40 is in contact with the leaf spring 70, the leaf spring 70 can be mounted on the first mounting portion 31b so that the leaf spring 70 does not move from the first mounting portion 31b in the positive X-axis direction Break away. Therefore, the leaf spring 70 can be more firmly fixed to the first mounting portion 31b.

Furthermore, in the lighting device 1 of this embodiment, the first housing 31 and the second housing 32 have the first mounting portion 31b integrally formed.

According to this, since the first mounting portion 31b is integrated with the first housing 31 and the second housing 32, it is not necessary to newly assemble the first mounting portion. As a result, in this lighting device 1, it is possible to suppress the increase in manufacturing cost.

(Other modifications) As described above, the lighting device of the present disclosure has been described based on the first and second embodiments, and the present disclosure is not limited to the above-mentioned respective first and second embodiments.

For example, in each of the above-mentioned Embodiments 1 and 2, it is also possible to house a controller that controls the on and off of the light-emitting module, that is, the lighting control section, in the power supply section. The lighting control unit can also control the brightness of the light emitted by the light-emitting module, or control the color of the light.

Moreover, in each of the above-mentioned Embodiments 1 and 2, a pair of leaf springs may be arranged so as to be parallel to the Z-axis direction in the areas A1 and A2.

Furthermore, in each of the above-mentioned Embodiments 1 and 2, the lighting control unit is housed in the first housing and the second housing, but it is not limited to this. The lighting control unit may also be stored in the storage body.

Moreover, in each of the above-mentioned Embodiments 1 and 2, the structure of the appliance body may also include a heat sink. At this time, a part of the heat sink may also protrude toward the direction intersecting the optical axis. Therefore, the housing does not need to protrude in the direction crossing the optical axis.

In addition, the above-mentioned Embodiments 1 and 2 are implemented in various modified forms that the industry conceived of, and the form achieved by arbitrarily combining the constituent elements and functions of the respective Embodiments 1 and 2 within the scope of the present disclosure Also included in this disclosure.

1: Lighting device 3: Apparatus body 31: The first shell (shell) 31a: bottom plate 31a1: opening 31a2: Extension piece 31b: The first installation part (installation part) 31b2: surface 32: The second shell (shell) 32a: top plate 32a1: Install the face 32b: Standing wall 39: power connector 40: Outer cover 41: Tube 42: Frame 51: Lamp holder 52: opening 54: Lampshade 55: Translucent cover 61: Install the base plate 62: Light-emitting module 63: Power Department 63a: lighting circuit 70: leaf spring (spring) 70a: Leaf spring 71: The second installation department 72: Arm 73: Claw 74: Gap 131: Guidance 132: Locking part 133: Groove 133a: bottom 134: Restricted Department 230: first shell 231: Guidance 231b: Spring support 233: Concave A1: area A2: area H: Center of gravity O: Centerline V1: straight line V2: straight line T1: The height of the locking part T2: Height of claw T3: Depth of groove X: direction Y: direction Z: direction

Fig. 1 is a perspective view illustrating the lighting device of the first embodiment. Fig. 2 is an exploded perspective view of the lighting device of the first embodiment. 3 is a cross-sectional view of the cross-section of the lighting device along the line III-III in FIG. 1. Fig. 4 is a plan view of the lighting device of Embodiment 1 viewed from the negative X-axis side. Fig. 5 is a partially enlarged view of the first housing and the leaf spring of the lighting device 1 on the line V-V of Fig. 2. 6A is a partially enlarged cross-sectional view of the cross section of the first housing and the leaf spring before the leaf spring is installed on the first installation portion of the first housing on the VIA-VIA line of FIG. 2. 6B is a partially enlarged cross-sectional view of the first housing and the cross section of the leaf spring after the leaf spring is installed on the first installation portion of the first housing. Fig. 7 is a partially enlarged view of the first housing and the leaf spring of the comparative example.

1: Lighting device

3: Apparatus body

31a2: Extension piece

31b: The first installation part (installation part)

31b2: surface

32: The second shell

32a: top plate

32a1: Install the face

39: power connector

40: Outer cover

41: Tube

42: Frame

70: leaf spring (spring)

70a: Leaf spring

71: The second installation department

72: Arm

A1: area

A2: area

H: Center of gravity

O: Centerline

V1: straight line

V2: straight line

X: direction

Y: direction

Z: direction

Claims (15)

A lighting device comprising: Light-emitting module The appliance body accommodates the light-emitting module; A pair of springs arranged on the outer circumference of the appliance body and used to fix the appliance body to the ceiling; A part of the appliance body protrudes toward a direction crossing the optical axis of the light emitted by the light-emitting module, At least one spring of the pair of springs is arranged on a side of a part of the appliance body that protrudes more than a plane containing an optical axis and perpendicular to a direction in which a part of the appliance body protrudes. Such as the lighting device of item 1 in the scope of patent application, among which, When the lighting device is viewed from above along the optical axis direction, the pair of springs are arranged point-symmetrically with respect to the optical axis direction. Such as the lighting device of item 2 of the scope of patent application, among which, One of the springs and the other of the pair of springs are leaf springs, The direction in which the arm of one of the springs extends from the appliance body is on the same straight line as the direction in which the arm of the other spring extends from the appliance body. Such as the lighting device of any one of items 1 to 3 of the scope of patent application, in which, The appliance body has: The outer cover, which can pass the light emitted by the light-emitting module; and A housing, which fixes the outer cover and accommodates the light-emitting module, When the lighting device is viewed from above along the optical axis, a part of the housing protrudes in the outer diameter direction than the outer peripheral surface of the outer cover. Such as the lighting device of item 4 of the scope of patent application, of which, The housing has a pair of installation parts for installing the pair of springs in a one-to-one correspondence manner, When the lighting device is viewed from above along the optical axis, the surface of at least one of the pair of installation parts on the side where the spring is installed is inclined with respect to the direction in which a part of the appliance body protrudes. For example, the lighting device of item 4 of the scope of patent application includes: The lighting circuit provides power for lighting the light-emitting module; and Mount the substrate, install the lighting circuit and the light-emitting module; The lighting circuit and the mounting substrate are housed in the casing. Such as the lighting device of item 4 of the scope of patent application, of which, The appliance body has a first installation part, The pair of springs respectively have: The second installation part is installed in the first installation part; and The claw part protrudes toward the first installation part and is locked to the first installation part; The first installation portion has: a guide portion that guides the second installation portion in a sliding manner along the surface of the first installation portion facing the second installation portion; and a groove portion, It can pass through the claw. Such as the lighting device of item 7 of the scope of patent application, of which, The groove portion extends upward from the bottom edge of the first installation portion when the lighting device is installed on the ceiling. Such as the lighting device of item 8 of the scope of patent application, of which, The first mounting part further has a locking part for locking the claw part, When the second mounting portion is slid from the lower end edge of the first mounting portion, the first mounting portion has a restricting portion that blocks the claw portion that slides over the locking portion. Such as the lighting device of item 9 of the scope of patent application, of which, The locking portion is formed on the convex portion of the groove portion. Such as the lighting device of item 9 of the scope of patent application, of which, The locking portion is formed at the bottom of the groove portion, The height of the locking portion is greater than the depth of the groove portion minus the height of the claw portion protruding toward the first mounting portion, and is smaller than the depth of the groove portion. Such as the lighting device of item 9 of the scope of patent application, of which, The shape of the locking part is hemispherical. Such as the lighting device of item 9 of the scope of patent application, of which, The locking portion is provided on the terminal side of the sliding direction when the second installation portion is installed on the first installation portion. Such as the lighting device of item 9 of the scope of patent application, of which, The outer cover supports the pair of springs in a manner that the restricting portion clamps the pair of spring supports. Such as the lighting device of item 14 of the scope of patent application, of which, The housing has a first mounting portion integrally formed.

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