JP2017054644A - lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp using a light-emitting element as a light source, capable of separating a light source module and a mouthpiece, and excellent in fitting workability.SOLUTION: A lamp includes a light source unit 10 provided with an LED 11, and a light source holding unit 30 including a mouthpiece 40 screwed into a socket 105 of a luminaire body 100, wherein the units separate from each other, and the light source unit 10 can be held to the light source holding unit 30 at an arbitrary angle. The light source unit 10 and the light source holding unit 30 each include a connection shaft part 55 connected to each other. On one connection shaft part 55 of the light source 10 and the light source holding unit 30, a connection part 50 is provided, and the connection part 50, when the other connection shaft part 55 is inserted into the connection part 50 and then connected to the one connection shaft part 55, expands in a radial direction of the connection shaft part 55 by elastic force, and connects and fixes the light source unit 10 and the light source holding unit 30 by tightening of the connection part 50 from the elastic force.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a lamp using a light emitting element such as an LED or an organic EL as a light source.

  In recent years, with the increase in output and cost of an LED, which is a kind of semiconductor light-emitting element, a cap-shaped LED lamp that can be used as an alternative to an HID lamp has been proposed (for example, see Patent Document 1). By the way, in the lighting fixture which irradiates only a specific direction, such as a horizontal lighting fixture, it is necessary to match | combine the irradiation direction of an LED lamp with the irradiation direction of an irradiation fixture. Therefore, in the LED lamp described in Patent Document 1, the light source module and the base can be separated, and the light source module is connected to the base after the base is attached to the lamp holder. The light source module and the base are provided with a base part having a thread formed on the outer periphery on the light source module side, and a mounting ring having a thread formed on the inner periphery is provided on the base side, and the mounting ring is screwed into the base part. Are connected.

Utility Model Registration No. 3177908

However, it is necessary to connect the light source module to the base attached to the lamp holder in a limited space in the lamp holder, and the base portion provided in the light source module is screwed into the attachment ring provided in the base. In the method, the mounting workability was poor.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to improve mounting workability in a lamp in which a light emitting element is used as a light source and a light source module and a base are separated.

  In order to achieve the above object, the present invention provides a light source part provided with a light emitting element and a light source holding part provided with a base screwed into a socket of an instrument body, and the light source part is It is a lamp that can be held at an arbitrary angle by the light source holding unit, and the light source unit and the light source holding unit include a connecting shaft portion that is connected to each other, and either the light source unit or the light source holding unit. A connecting portion is provided around one of the connecting shaft portions, and the connecting portion is connected by the elastic force when the other connecting shaft portion is inserted into the connecting portion and connected to the one connecting shaft portion. The light source portion and the light source holding portion are connected and fixed by expanding the shaft portion in the radial direction and tightening the connection portion by elastic force.

  In the lamp according to the present invention, the light source unit and the light source holding unit may include a convex portion on at least a part of a portion where the one connection shaft portion and the other connection shaft portion face each other. Alternatively, a concave portion is provided, and in a connected state, the convex portion or concave portion of the light source unit and the concave portion or convex portion of the light source holding unit are fitted.

  Further, in the lamp according to the present invention, the connection portion is composed of a plurality of connection members disposed around the connection shaft portion, and the plurality of connection members are connected in a cylindrical shape by an elastic body. It is characterized by.

  Further, the present invention is characterized in that, in the lamp described above, the connecting portion includes a protruding portion on an inner peripheral surface, and the protruding portion is fitted in a groove portion provided on the outer peripheral surface of the connecting shaft portion. And

  Further, in the lamp according to the present invention, the light source unit and the light source holding unit include electrodes that electrically connect each other, and one electrode is disposed on a central axis of the coupling shaft unit, and the other The electrode is arranged around the one electrode.

  According to the present invention, the light source unit provided with the base that is screwed into the socket of the instrument main body and provided with the light emitting element is separate from the light source holding unit having the base, and the light source unit is connected to the light source. A lamp that can be held by a holding unit at an arbitrary angle, wherein the light source unit and the light source holding unit include a connecting shaft portion that is connected to each other, and either the light source unit or the light source holding unit. A connecting portion is provided around the connecting shaft portion, and the connecting portion is connected to the one connecting shaft portion by inserting the other connecting shaft portion into the connecting portion by an elastic force. The light source part and the light source holding part are connected and fixed by tightening the connection part by elastic force, so that either one of the connecting shaft parts can be easily inserted into the connection part. And the light source holding part can be connected and fixed, Using an optical element to a light source, a light source module can be divided and the cap, and it is possible to provide a good mounting workability lamp.

It is a perspective view which shows the lighting fixture using the LED lamp which concerns on embodiment of this invention. It is a perspective view which shows the structure of an LED lamp, (A) is a perspective view which shows an LED lamp from the surface, (B) is a perspective view which shows an LED lamp from the back surface. It is a figure which shows the structure of an LED lamp, (A) is a front view, (B) is a left view, (C) is a bottom view. It is a figure which shows the structure of the connection part which connects a light source part and a light source holding | maintenance part, (A) is a front view, (B) is the A section enlarged view of (A). It is a figure which shows the structure of a connection part, (A) is a left side view of an LED lamp, (B) is a front view of a connection part. It is a figure which shows the state which isolate | separated the light source part and the light source holding | maintenance part, (A) is the perspective view shown from the upper surface side, (B) is the perspective view shown from the bottom face side. It is a perspective view which shows the attachment structure of the LED lamp to an instrument main body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating a configuration of a lighting fixture 3 using an LED lamp 1 according to the present embodiment. In addition, in the following description, the front and back of the LED lamp 1 defines the radiation direction of light from the light source as a table. Moreover, the upper and lower sides of the LED lamp 1 are defined with the base 40 side as the lower side in the axial direction of the base 40 described later.

As shown in FIG. 1, the LED lamp 1 is a lamp that is used by being attached to an instrument body 100. The LED lamp 1 has a light output that can be used in place of a high-power type existing discharge lamp such as an HID lamp. Moreover, the LED lamp 1 can be attached to the instrument main body 100 without replacing the existing instrument main body 100 to which the discharge lamp has been conventionally attached. The LED lamp 1 is a die-type lamp having a base 40, and can be used by attaching the base 40 to an existing socket 105 of the instrument body 100.
The luminaire 3 has an opening 103 that opens in the light emission direction, and a body glove (not shown) is detachably attached to the opening 103. The LED lamp 1 is attached by screwing a base 40 into the socket 105 of the instrument main body 100 from the opening 103 from which the main body glove is removed.

By the way, although a discharge lamp lights with alternating current power, light emitting elements, such as LED, light with direct current power. Accordingly, when the LED lamp 1 using an LED as an example of a light emitting element as a light source is lit with an AC commercial power source, DC power is supplied to the LED lamp 1 through a power supply circuit that converts the commercial power source into DC power. . The LED lamp 1 of the present embodiment has a configuration in which a power supply circuit is provided on the socket 105 side without incorporating a power supply circuit, and DC power is input from the socket 105 through the base 40. In other words, when the LED lamp 1 is mounted on an existing lamp for a discharge lamp, the ballast included in the lamp is replaced with a power supply circuit.
The LED lamp 1 of this embodiment is a crime prevention lamp using a mercury lamp of 100 W to 300 W, for example, and is a lamp that can be used as an alternative to a mercury lamp. The LED lamp 1 is a lamp having a total length including the base 40 of about 15 cm to 30 cm.

Next, the configuration of the LED lamp 1 will be described in detail.
As shown in FIGS. 2 and 3, the LED lamp 1 includes a light source unit 10 (light source unit) provided with a light source and a light source holding unit 30 (light source holding unit) that holds the light source unit 10. The light source holding unit 30 has a base 40 and extends in a column shape along the central axis O of the base 40. The base 40 is, for example, an E26 type or E39 type screw type (rotating type) generally called an E type base, and is configured according to the size of the existing socket 105 and is screwed into the socket 105. Can be installed. The base 40 is supplied with DC power through the socket 105, and the LED is turned on by supplying the DC power to the light source unit 10. The base 40 may be a plug-in type.

  The light source unit 10 includes a light source module 20 that includes an LED 11 (see FIG. 2), which is an example of a light emitting element, as a light source, and a rectangular flat base 16 on which the light source module 20 is disposed. The light source unit 10 includes a lamp body 15 including two bases 16 and a light source module 20 provided on each base 16. The two bases 16 are connected in a V shape so that the angle α between them is 45 ° to 135 °. Note that the angle α between the two bases 16 can be appropriately set according to the shape of the fixture body 100 and the prescribed light distribution of the lighting fixture 3. In the LED lamp 1 of the present embodiment, the angle α formed by the two bases 16 is set to approximately 90 °.

  The light source module 20 is a rectangular module extending along the axial direction of the base 40, and includes a mounting substrate 12 and a plurality of LEDs 11 mounted on the surface of the mounting substrate 12. The LED lamp 1 according to the present embodiment includes two light source modules 20, and these light source modules 20 are arranged in a posture extending in the axial direction of the base 40 and supported on each of bases 16 connected in a V shape. Has been. The LED lamp 1 is configured such that a desired light distribution is obtained by light from the light source module 20 disposed on each base 16. An optical member such as a reflecting mirror 102 (see FIG. 1) is provided inside the instrument body 100, and at least one of the light from the LED lamp 1 mounted at a predetermined position (angle) with respect to the instrument body 100 is provided. The part may be reflected by the reflecting mirror 102 to form a desired light distribution.

  Each base 16 is provided with a globe 13 (cover) that covers the light source module 20. The globe 13 is formed in a rectangular shape in plan view and a semi-elliptical cross section using a translucent material such as a resin material. According to this configuration, since the light source module 20 is covered with the globe 13, when the LED lamp 1 is handled, it is possible to prevent an operator's hand or the like from directly touching the LED 11.

  A plurality of plate-like cooling fins 17 are arranged on the back surface of the base 16. Each cooling fin 17 extends from the outer end 16 </ b> A of the base 16 in the short direction of the base 16. The cooling fins 17 absorb the heat of the LEDs 11 transferred from the light source module 20 disposed on the surface of the base 16 to the base 16 and dissipate the heat, thereby cooling the LEDs 11. In the lamp body 15, two bases 16 and cooling fins 17 are integrally formed from a metal material having high thermal conductivity such as aluminum. The lamp body 15 is preferably formed by casting (for example, aluminum die casting).

  The light source holding unit 30 includes a base 40 and a base receiver 31. The base receiver 31 is formed of a resin material such as polycarbonate resin into a cylindrical shape having a hollow portion, and the base 40 is attached from below. A circuit board (not shown) that is electrically connected to the base 40 is accommodated in the hollow interior of the base receiver 31.

The light source unit 10 and the light source holding unit 30 are configured separately and are configured to be connectable by a cylindrical connection unit 50.
As shown in FIG. 4, the LED lamp 1 includes a connecting shaft portion 55 around which the connection portion 50 is provided. The connection shaft portion 55 is provided in the light source unit 10 and is provided in one light connection unit 55 </ b> A extending from the bottom surface of the lamp body 15 along the central axis O of the base 40 and the light source holding unit 30. The other connecting shaft portion 55 </ b> B extends along the central axis O of the base 40. One connecting shaft portion 55A and the other connecting shaft portion 55B are configured to have substantially the same outer peripheral diameters of portions facing each other, and connect one connecting shaft portion 55A and the other connecting shaft portion 55B. At this time, it is configured to be a single shaft-like connecting shaft portion 55.

One connecting shaft portion 55 </ b> A provided in the light source unit 10 is formed integrally with a flange 56 fixed to the bottom surface of the lamp body 15. The other connecting shaft portion 55 </ b> B provided in the light source holding unit 30 may be configured to extend upward from the base receiver 31 and be formed integrally with the base receiver 31.
One connecting shaft portion 55A and the other connecting shaft portion 55B are each provided with groove portions 57A and 57B on the outer peripheral wall portion. The groove portions 57A and 57B are provided at least in part of the outer peripheral wall portion of the coupling shaft portions 55A and 55B. In the present embodiment, the groove portions 57A and 57B are provided over the entire circumference of the outer peripheral wall portion of the connecting shaft portions 55A and 55B.

On the inner periphery of the connecting portion 50, a protruding portion 51 that fits into the groove portions 57A and 57B is formed. In the state where the one connecting shaft portion 55A and the other connecting shaft portion 55B are connected, the connecting portion 50 is fitted into the groove portions 57A and 57B, whereby one connecting shaft portion 55A and It is comprised so that the movement to the axial direction with the other connection shaft part 55B may be controlled.
As shown in FIGS. 5A and 5B, the connecting portion 50 includes a tubular member that is vertically divided into a plurality along the axial direction. The connecting members 52 (52A, 52B), which are the divided parts of the connecting portion 50, are connected and connected by an elastic body 58. The connecting shaft portions 55A and 55B are connected to each other by arranging a plurality of connecting members 52A and 52B connected and connected to each other by the elastic body 58 around the connecting shaft portions 55A and 55B.
In the present embodiment, the connecting portion 50 is divided into two parts and includes the connecting members 52A and 52B. However, the connecting portion 50 is not limited to this, and the connecting portion 50 is vertically divided into three along the axial direction. The structure divided | segmented into multiple, such as a division | segmentation, may be sufficient.

  Since the connection member 50 is connected and connected by the elastic body 58 between the connection members 52A and 52B, the connection portion 50 has a cylindrical configuration that can be expanded and contracted in the radial direction of the connection shaft portions 55A and 55B. In this embodiment, the elastic body 58 is configured by a coil spring. The elastic body 58 is not limited to a coil spring, and may be an appropriate elastic body that has elasticity and can be connected between the connecting members 52A and 52B so as to be able to expand and contract.

The connecting portion 50 extends and expands the elastic body 58 in the radial direction of the connecting shaft portions 55A and 55B (the direction in which the connecting members 52A and 52B are separated), so that the projecting portion 51 is a groove portion 57A of the connecting shaft portions 55A and 55B. 57B, the connecting shaft portions 55A and 55B are movable in the axial direction.
When the LED lamp 1 is attached to the instrument body 100, the base 40 is first attached to the socket 105 of the instrument body 100 in a state where the light source unit 10 and the light source holding unit 30 are separated, and the light source holding unit 30 is mounted. It is attached to the instrument body 100. The connection unit 50 can be attached in advance to either the light source holding unit 30 or the light source unit 10. FIG. 7 is a diagram illustrating an example in which the light source holding unit 30 is attached to the instrument main body 100 in a state where the connection unit 50 is attached to the light source holding unit 30 in advance. Of course, it is possible to attach the connecting portion 50 to the light source holding unit 30 after the light source holding unit 30 is mounted on the instrument main body 100.

  As shown in FIG. 7, the connecting shaft portion 55 </ b> A extending from the light source unit 10 is connected to the connecting portion 50 in a state where the connecting portion 50 is attached to the connecting shaft portion 55 </ b> B extending from the light source holding unit 30 attached to the instrument body 100. When inserted, the connecting portion 50 expands in the radial direction of the connecting shaft portion 55B. A force is applied to the connecting portion 50 in the tightening direction by the elastic force of the elastic body 58. When the connecting shaft portion 55A is inserted into the connecting portion 50 to a position where it is connected to the connecting shaft portion 55B, the protruding portion 51 of the connecting portion 50 is fitted into the groove portion 57A of the connecting shaft portion 55A, and the light source unit. The movement in the axial direction of 10 is restricted. In addition, the connecting portion 50 is subjected to a force that reduces the diameter in the radial direction of the connecting shaft portions 55A and 55B by the elastic force of the elastic body 58 between the connecting members 52A and 52B. In this way, the connecting shaft 50 is fastened by the elastic force of the elastic body 58, so that the connecting shaft portions 55A and 55B are fixed. According to these configurations, the light source unit 10 and the light source holding unit 30 can be easily connected with one touch by inserting the other into the connecting portion 50 attached to one of the coupling shaft portions 55A and 55B. be able to.

  As described above, the LED lamp 1 can easily connect the light source unit 10 to the light source holding unit 30 after the base 40 is attached to the socket 105 of the instrument body 100. When the light source unit 10 is connected to the light source holding unit 30, the light source unit 10 and the light source holding unit 30 can be connected at an arbitrary angle, and the irradiation direction of the light source unit 10 is the irradiation direction of the instrument body 100. It can be easily attached according to. Moreover, since there is no need to adjust the irradiation direction by rotating the light source unit 10 in the lamp space 101 of the instrument main body 100, the size of the light source unit 10 is concerned about the limitation for rotating the light source unit 10. In other words, the light source unit 10 can be designed within a range that can be accommodated in the lamp space 101, and the degree of freedom in designing the light source unit 10 is improved.

By the way, when connecting shaft part 55A, 55B restrict | limits only the movement to an axial direction and it connects, the light source unit 10 may rotate in the instrument main body 100. FIG. Therefore, in the present embodiment, the relative rotation of the connecting shaft portions 55A and 55B is restricted as described below.
As shown in FIG. 6, contact surfaces 59 </ b> A and 59 </ b> B provided in a ring shape along the periphery of the connecting shaft portions 55 </ b> A and 55 </ b> B are formed in the facing portions of the connecting shaft portions 55 </ b> A and 55 </ b> B. The contact surfaces 59A and 59B are provided with a plurality of protrusions 61A and 61B arranged in the circumferential direction. As described above, by providing a plurality of protrusions 61A and 61B side by side in the circumferential direction, a plurality of convex portions 62 and concave portions 63 are formed on the contact surfaces 59A and 59B.

  In the connected state of the connecting shaft portions 55A and 55B, the contact surfaces 59A and 59B are pressed against each other, so that the convex portion 62 and the concave portion 63 are engaged with each other. The relative rotation of the connecting shaft portions 55 </ b> A and 55 </ b> B is restricted by the engagement between the convex portion 62 and the concave portion 63. That is, the convex portion 62 or the concave portion 63 of the contact surface 59A on the one connecting shaft portion 55A side provided by the projection 61A and the concave portion 63 or the convex portion of the contact surface 59B on the other connecting shaft portion 55B side provided by the projection 61B. The relative rotation between the light source unit 10 and the light source holding unit 30 is restricted by the fitting of the part 62. Thus, since the relative rotation is restricted in the connected state between the light source unit 10 and the light source holding unit 30, the light source unit 10 and the light source holding unit 30 are connected and held at an arbitrary angle. be able to.

One connecting shaft portion 55A and the other connecting shaft portion 55B are manually separated in the axial direction, so that the connecting portion 50 expands in the radial direction and can be moved in the axial direction. And the recess 63 are disengaged from each other so that they can rotate relatively.
In the present embodiment, the contact surfaces 59A and 59B of the portions of the coupling shaft portions 55A and 55B facing each other are provided with irregularities. However, the present invention is not limited to this, and the portions of the coupling shaft portions 55A and 55B facing each other. The structure itself may be formed in the uneven | corrugated shape.

  In addition, a pair of electrodes that electrically connect the light source unit 10 and the light source holding unit 30 are provided at portions of the coupling shaft portions 55A and 55B facing each other. More specifically, one electrode 5A is disposed on the central axis O of the LED lamp 1 in the one connecting shaft portion 55A, which is a portion facing the other connecting shaft portion 55B. The other electrode 5B is disposed around one electrode 5A disposed on the central axis O. When the anode electrode is arranged on the central axis O of the LED lamp 1 as one electrode 5A, the negative electrode is arranged around the one electrode 5A as the other electrode 5B. One electrode 5A protrudes in a convex shape along the central axis O from the bottom surface of the connecting shaft portion 55A. The other electrode 5B is provided in a ring shape surrounding the periphery of the one electrode 5A from the bottom surface of the connecting shaft portion 55A. A recessed insulating portion 5C is formed between one electrode 5A and the other electrode 5B. Although not shown, the lead wire extending from the LED substrate provided in the light source unit 10 is connected to the electrodes 5A and 5B inside the connecting shaft portion 55A.

  The other connecting shaft portion 55B is disposed on the central axis O of the LED lamp 1 so as to face the one connecting shaft portion 55A. The other electrode 6B is disposed around one electrode 6A. One electrode 6A of connecting shaft portion 55B is connected to one electrode 5A of connecting shaft portion 55A. Further, the other electrode 6B of the connecting shaft portion 55B is connected to the other electrode 5B of the connecting shaft portion 55A. When the electrode 6A and the electrode 5A are connected, and the electrode 6B and the electrode 5B are connected, the DC power supplied through the base 40 is supplied to the light source unit 10, and the LED 11 disposed in the light source module 20 is turned on. To do. One electrode 6A is formed by denting the upper surface of the connecting shaft portion 55B along the central axis O. The other electrode 6B is formed by denting the upper surface of the connecting shaft portion 55B in a ring shape surrounding the one electrode 5A. A protruding insulating portion 6C is formed between one electrode 6A and the other electrode 6B. Although not shown, the lead wire extending from the base 40 is connected to the electrodes 6A and 6B inside the connecting shaft portion 55B.

  The electrodes 5A and 5B provided on one connecting shaft portion 55A and the electrodes 6A and 6B provided on the other connecting shaft portion 55B are configured to be fitted to each other when the connecting shaft portions 55A and 55B are connected. The Thereby, the light source unit 10 and the light source holding unit 30 are configured to be electrically connected. According to this configuration, as described above, the connection shaft portion 55A of the light source unit 10 and the connection shaft portion 55B of the light source holding unit 30 are inserted into the connection portion 50, so that the light source unit 10 and the light source holding unit can be connected with one touch. Thus, the electrode 5A can be easily connected to the electrode 6A, and the electrode 5B can be easily connected to the electrode 6B. Moreover, since no lead wire is interposed between the light source unit 10 and the light source holding unit 30, the lead wire is not twisted when the light source unit 10 and the light source holding unit 30 are relatively rotated.

As described above, according to the LED lamp 1 of the present embodiment, the following effects can be obtained.
That is, in the LED lamp 1, the light source unit 10 provided with the LED 11 and the light source holding unit 30 provided with the base 40 screwed into the socket 105 of the instrument body 100 are separate bodies. The lamp can be held by the holding unit 30 at an arbitrary angle, and the light source unit 10 and the light source holding unit 30 include a connecting shaft portion 55 connected to each other, and either the light source unit 10 or the light source holding unit 30. One connecting shaft portion 55 (55A or 55B) is provided with a connecting portion 50, and the connecting portion 50 is inserted into the connecting portion 50 with the other connecting shaft portion 55 (55A or 55B) inserted into one connecting shaft portion 55. When connecting to (55A or 55B), the light source unit expands in the radial direction of the connecting shaft portion 55 by elastic force, and the connection portion 50 is tightened by elastic force. And 10 and the light source holding unit 30 connected and fixed.
According to this configuration, after the base 40 is attached to the socket 105 of the instrument body 100, the other connection shaft 50 is attached to the connection portion 50 attached to either one of the connection shaft portions 55A or the other connection shaft portion 55B. The light source unit 10 and the light source holding unit 30 can be easily connected and fixed by inserting the shaft portion 55A or the connecting shaft portion 55B. Therefore, the LED 11 as an example of a light emitting element can be used as a light source, and the light source module 20 and the base 40 can be separated, and a lamp with good mounting workability can be provided.

  Further, according to the present embodiment, the light source unit 10 and the light source holding unit 30 have the convex portion 62 on at least a part of the portion where the one connecting shaft portion 55 and the other connecting shaft portion 55B face each other. Alternatively, the concave portion 63 is provided, and in the connected state, the convex portion 62 or the concave portion 63 of the light source unit 10 and the concave portion 63 or the convex portion 62 of the light source holding unit 30 are fitted. According to this configuration, the light source unit 10 and the light source holding unit 30 can be prevented from rotating relatively in the connected state. Therefore, when the LED lamp 1 is attached to the instrument main body 100, the light source unit 10 can be prevented from rotating, and the irradiation direction of the LED lamp 1 can be prevented from deviating from the irradiation direction of the instrument main body 100.

  Further, according to the present embodiment, the connection portion 50 is configured by the plurality of connection members 52A and 52B disposed around the connection shaft portion 55, and the plurality of connection members 52A and 52B are formed into a cylindrical shape by the elastic body 58. Connected to. According to this configuration, by applying a force in a direction that separates the distance between the connecting members 52 </ b> A and 52 </ b> B, the elastic body 58 can be extended and the connecting portion 50 can be easily expanded in the radial direction of the connecting shaft portion 55. Further, due to the elastic force of the elastic body 58, a force is exerted on the connecting members 52A and 52B in a direction approaching each other, whereby the connecting portion 50 is restrained in the direction of tightening the connecting shaft portion 55 in the radial direction. The light source unit 10 and the light source holding unit 30 can be fixed by the elastic force.

  Further, according to the present embodiment, the connecting portion 50 includes the protruding portion 51 on the inner peripheral surface, and the protruding portion 51 is fitted into the groove portions 57 </ b> A and 57 </ b> B provided on the outer peripheral surface of the connecting shaft portion 55. To do. According to this configuration, since the connecting shaft portions 55A and 55B are restricted from moving in the axial direction in the connected state, the light source unit 10 and the light source holding unit 30 can be more stably fixed by tightening the connecting portion 50. can do.

  Further, according to the present embodiment, the light source unit 10 and the light source holding unit 30 have the electrodes 5A, 5B, 6A, and 6B that are electrically connected to each other, and the one electrode 5A and 6A is a connecting shaft portion. The other electrodes 5B and 6B are arranged around one electrode 5A and 6A, and when the light source unit 10 and the light source holding unit 30 are connected, the light source unit 10 and the light source holding unit 30 are arranged. Are electrically connected. According to this configuration, the electrical connection between the light source unit 10 and the light source holding unit 30 is established with one touch when the light source unit 10 and the light source holding unit 30 are connected with one touch due to the expansion / contraction diameter of the connection portion 50. . Therefore, the light source unit 10 and the light source holding unit 30 can be easily connected and fixed, and can be electrically connected. The light source element 20 can be used as a light source, and the light source module 20 and the base 40 can be separated. A lamp with good mounting workability can be provided.

The above-described embodiment is merely an example of one aspect of the present invention, and can be arbitrarily modified and applied without departing from the spirit of the present invention.
For example, in the above-described embodiment, the LED is exemplified as an example of the light emitting element, but the present invention is not limited thereto, and other light emitting elements such as an organic EL may be used.

DESCRIPTION OF SYMBOLS 1 LED lamp 3 Lighting fixture 5A, 5B, 6A, 6B Electrode 10 Light source unit (light source part)
11 LED
20 light source module 30 light source holding unit (light source holding unit)
40 base 50 connecting portion 51 projecting portion 52 (52A, 52B) connecting member 55 (55A, 55B) connecting shaft portion 57A, 57B groove portion 58 elastic body 62 convex portion 63 concave portion 100 instrument body 105 socket O central axis

Claims (5)

A light source unit provided with a light emitting element;
The light source holding part having a base screwed into the socket of the instrument body is a separate body,
A lamp capable of holding the light source unit at an arbitrary angle in the light source holding unit;
The light source part and the light source holding part include a connecting shaft part connected to each other,
A connecting part is provided around the connecting shaft part of either the light source part or the light source holding part,
The connecting portion expands in a radial direction of the connecting shaft portion by an elastic force when the other connecting shaft portion is inserted into the connecting portion and connected to the one connecting shaft portion, and the connection by the elastic force. A lamp characterized in that the light source part and the light source holding part are connected and fixed by tightening a part.   The light source part and the light source holding part include a convex part or a concave part in at least a part of a portion where the one connecting shaft part and the other connecting shaft part are opposed to each other. The lamp according to claim 1, wherein a convex portion or a concave portion of the light source unit and a concave portion or a convex portion of the light source holding unit are fitted. The connecting portion is composed of a plurality of connecting members disposed around the connecting shaft portion,
The lamp according to claim 1 or 2, wherein the plurality of connecting members are connected in a cylindrical shape by an elastic body.   The said connection part is provided with the protrusion part in an inner peripheral surface, and the said protrusion part fits into the groove part provided in the outer peripheral surface of the said connection shaft part. Lamp described in. The light source unit and the light source holding unit have electrodes that electrically connect each other,
One electrode is disposed on the central axis of the connecting shaft portion,
The lamp according to any one of claims 1 to 4, wherein the other electrode is disposed around the one electrode.

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