JP5255733B1 - Light source for illumination - Google Patents

Abstract

  It is a light source for illumination provided with the cylindrical housing | casing 10 which accommodates the 1st component unit 50 and the 2nd component unit 70 inside. The housing 10 includes a guide member 80 that is long in the direction from the one end 10a side to the other end 10b side. Each of the first and second component units has defect portions 57 and 75 having different shapes or sizes, and the guide member 80 is positioned in the defect portion when inserted into the housing 10 from the one end 10a side. It can be moved along the guide member 80. The guide member 80 prohibits the movement of the first component unit 50 toward the other end 10 b at the first position 82, and the first component unit at the second position 83 closer to the one end 10 a than the first position 82. 50 is allowed to move toward the other end 10b, but the shape or size at the first position 82 and the second position 83 is defined so as to prohibit the movement of the second component unit 70 toward the other end 10b. Made up.

Description

  The present invention relates to an illumination light source, and more particularly to an illumination light source using a semiconductor light emitting element such as an LED.

  In recent years, as an alternative to an incandescent bulb, a bulb-shaped illumination light source using a semiconductor light emitting element such as an LED (Light Emitting Diode) is becoming widespread.

  Such an illumination light source generally has a light emitting unit in which a plurality of LEDs are mounted on a single mounting board, a base that supports the light emitting unit, a heat sink for dissipating heat emitted from the LEDs, and an LED lighting. A plurality of component units, such as a circuit unit, are housed in the housing, and a globe is attached to the front side of the housing (the main emission direction of the LED is the front), and the rear side of the housing A base is attached to the end, and the light emitted from the LED is emitted to the outside through the globe. And these some component units are accommodated in a housing | casing in the aspect stacked | stacked in order in the direction along a lamp axis, and are fixed using a nail | claw, a screw, an adhesive agent, etc.

JP 2011-82122 A JP 2009-267082 A

  Such illumination light sources often require manual wiring because they require wiring, etc., but for inexperienced workers such as screw hole alignment and the order in which component units are assembled into the chassis It takes time to assemble because of the wrong order and position or troublesome work. If assembly work is complicated, such as when production is transferred overseas, it will take time to explain to local workers. For this reason, there is a demand for improvement in productivity that does not depend on the skill level of workers.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an illumination light source having a configuration that can be easily assembled without depending on the skill level of an operator.

  An illumination light source according to an aspect of the present invention is an illumination light source including a cylindrical housing that houses the first and second component units therein, the housing from the one end side to the other end side. A long guide member extending in a direction toward the inside is provided inside, and the first and second component units each have a defect portion having a shape or size different from each other, and the inside of the housing is from the one end side. When inserted, the guide member is movable along the longitudinal direction of the guide member in a state where the guide member is located in the defect portion, and the guide member is moved to the first position in the longitudinal direction. The movement of the component unit to the other end side is prohibited by locking, and the movement of the first component unit to the other end side is permitted in the second position on the one end side than the first position. The second component unit To move to the other end of the bets to prohibit the engagement, characterized in that the shape or size of the first position and the second position is formed by defined.

  The illumination light source according to one aspect of the present invention is positioned at the first position because the first component unit is not prohibited from moving to the other end side at the second position but prohibited at the first position. Since the second component unit is prohibited from moving to the other end side at the second position, the second component unit is positioned at the second position. Thus, the positioning in the longitudinal direction can be performed only by a very easy operation of moving the component unit along the guide member to the other end side, and the housing is in a state where the guide member is positioned in the defect portion. Since it is housed inside the body, positioning in the rotational direction around the cylindrical axis of the housing can be performed simultaneously.

It is an external appearance perspective view which shows schematic structure of the light source for illumination which concerns on embodiment of this invention. It is a disassembled perspective view of the light source for illumination which concerns on embodiment of this invention. It is A-A 'arrow sectional drawing in FIG. 1 of the light source for illumination which concerns on embodiment of this invention. It is the cross-sectional perspective view which looked at the arrow sectional drawing of FIG. 3 from the different angle. FIG. 4 is a partially cutaway cross-sectional perspective view schematically showing a relationship between a guide member and a defect portion of the illumination light source according to the embodiment of the present invention. It is a principal part expanded sectional view which shows the relationship between the internal peripheral surface of the housing | casing of the light source for illumination which concerns on the modification 1, and a component unit. (A) is a principal part expansion perspective view which shows typically the relationship between the guide member and defect | deletion part of the light source for illumination which concerns on the modification 2, (b) is the shape of the defect | deletion part which concerns on the modification 2. It is a principal part enlarged plan view shown typically. FIG. 10 is a partially cutaway perspective view schematically showing a relationship between a guide member of an illumination light source according to Modification 3 and a defect portion. It is a partially notched perspective view which shows typically the relationship between the guide member of the illumination light source which concerns on the modification 4, and a defect | deletion part. FIG. 10 is a partially cutaway exploded perspective view schematically showing a relationship between a guide member and a defect portion of an illumination light source according to Modification 5.

  Hereinafter, an illumination light source according to an embodiment of the present invention will be described with reference to the drawings.

  In addition, the scale of the member in each drawing is not necessarily the same as an actual thing. In the present application, the sign “˜” used to indicate a numerical range includes numerical values at both ends. In addition, the materials, numerical values, and the like described in this embodiment are merely preferable examples, and are not limited thereto. In addition, changes can be made as appropriate without departing from the scope of the technical idea of the present invention. Further, combinations of parts of the configuration with other embodiments are possible within a range where no contradiction occurs.

<Embodiment>
[1. Schematic configuration]
FIG. 1 is an external perspective view showing a schematic configuration of an illumination light source 1 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the illumination light source 1. FIG. 3 is an AA ′ arrow view in FIG. 4 is a perspective cross-sectional view of the cross-sectional view of FIG. 3 viewed from a different angle. In FIG. 4, the circuit unit 50 is not shown in cross section. In FIG. 3, the electronic component 52 is not a cross section.

  The illumination light source 1 includes a housing 10, a globe 20, a base 30, a light emitting unit 40, a circuit unit 50, a heat sink 60, an insulating member 70, a guide member 80, and the like as main components. In FIG. 3, the alternate long and short dash line drawn along the vertical direction of the paper indicates the lamp axis J of the illumination light source 1. The upper side of the paper is the front of the illumination light source 1, and the lower side of the paper is the illumination light source 1. It is backward. The front may be expressed as “upper” or “upper”, and the rear may be expressed as “lower” or “lower”.

[2. Configuration of each part]
<2-1. Case>
The housing 10 is a cylindrical member made of an insulating material having thermal conductivity, and includes a large diameter portion 11 and a small diameter portion 12. The large-diameter portion 11 and the small-diameter portion 12 have, for example, a substantially cylindrical shape that is open on both sides, and are integrally connected to each other in the axial direction so that the cylindrical shaft and the lamp shaft J coincide with each other. . The large-diameter portion 11 located on the front side has a substantially cylindrical shape with a diameter reduced from the front to the rear. The large-diameter portion 11 includes a circuit unit 50, an insulating member 70, a heat sink 60, and a light emitting unit 40 below. It is accommodated in this order from the side to the upper side. A part of the electronic component 52 of the circuit unit 50 is also accommodated in the small diameter portion 12. On the other hand, a base 30 is fitted on the small diameter portion 12 located on the rear side, and thereby the lower end side opening 10b of the housing 10 is closed. The upper end side opening 10 a of the housing 10 is closed by a heat sink 60. In FIGS. 3 and 4, only some electronic components are denoted by reference numerals.

  On the inner peripheral surface 11 a of the large diameter portion 11 of the housing 10, a long guide member 80 extending in a direction from the upper end side opening 10 a to the lower end side opening 10 b is formed integrally with the large diameter portion 11. ing. The guide member 80 will be described in detail in the item of guide member.

  For example, a heat conductive resin can be used as an insulating material with high heat conductivity in which the housing 10 is formed. By doing in this way, the heat which generate | occur | produced from the circuit unit 50 and the light emission part 40, and was propagated to the housing | casing 10 can be efficiently propagated and radiated to the nozzle | cap | die 30 side.

<2-2. Globe>
The globe 20 is a member that covers the light emitting unit 40, and the opening side end 21 of the globe 20 is fitted into the upper end side opening 10 a of the housing 10. The engagement claw 22 of the globe 20 engages with the engagement hole 11 b provided in the large diameter portion 11, and the engagement hole 23 of the globe 20 includes the engagement claw 81 provided at the upper end portion of the guide member 80. By engaging, the globe 20 is fixed to the housing 10.

  The inner surface 24 of the globe 20 is subjected to a diffusion process for diffusing the light emitted from the light emitting unit 40, for example, a diffusion process using silica, white pigment, or the like. The light incident on the inner surface 24 of the globe 20 passes through the globe 20 and is extracted to the outside of the globe 20.

  Note that the fixing of the globe 20 to the housing 10 is not limited to using the engagement structure, and for example, an adhesive or the like may be used.

<2-3. Clasp>
The base 30 is a member for receiving power from the socket of the lighting fixture when the lighting light source 1 is attached to the lighting fixture and turned on. The type of the base 30 is not particularly limited, but an Edison type E26 base is used in the present embodiment. The base 30 includes a shell portion 31 having a substantially cylindrical shape and an outer peripheral surface being a male screw, and an eyelet portion 33 attached to the shell portion 31 via an insulating portion 32. The shell part 31 is connected to the circuit unit 50 via the wiring 53, and the eyelet part 33 is connected to the circuit unit 50 via the wiring 54.

<2-4. Light emitting section>
The light emitting unit 40 includes an LED 41 as a semiconductor light emitting element used as a light source, a mounting substrate 42 on which the LED 41 is mounted, and a sealing body 43 that covers the LED 41 on the mounting substrate 42. A land 44 is formed in the portion of the mounting substrate 42 that is not covered by the sealing body 43 as a power receiving terminal that receives power for causing the LED 41 to emit light from the circuit unit 50. The light emitting unit 40 is disposed on the side opposite to the base 30 via the circuit unit 50, and the main emission direction of the LED 41 is arranged in front of the illumination light source 1 (above the paper surface).

  The sealing body 43 is mainly made of a translucent material, but when it is necessary to convert the wavelength of light emitted from the LED 41 to a predetermined wavelength, the wavelength of the light is converted into the translucent material. Wavelength conversion material is mixed. As the translucent material, for example, a silicone resin can be used, and as the wavelength conversion material, for example, phosphor particles can be used. In the present embodiment, an LED 41 that emits blue light and a sealing body 43 formed of a translucent material mixed with phosphor particles that convert the wavelength of blue light into yellow light are employed. A part of the emitted blue light is wavelength-converted to yellow light by the sealing body 43, and white light generated by mixing the unconverted blue light and the converted yellow light is emitted from the light emitting unit 40.

  The light emitting unit 40 may be, for example, a combination of an LED 41 that emits ultraviolet light and phosphor particles that emit light of three primary colors (red, green, and blue). Further, a material containing a substance that absorbs light of a certain wavelength and emits light of a wavelength different from the absorbed light, such as a semiconductor, a metal complex, an organic dye, or a pigment, may be used as the wavelength conversion material.

  The light emitting unit 40 is fixed to the center of the upper surface of the heat sink 60 using an adhesive, a screw, or the like.

<2-5. Circuit unit>
The circuit unit 50 is for lighting the LED 41, and includes a circuit board 51 and various electronic components 52 arranged on the circuit board 51.

  The circuit unit 50 and the base 30 are electrically connected by wirings 53 and 54. Further, the circuit unit 50 and the light emitting unit 40 are arranged through a wiring hole 71 that is a through hole provided in the insulating member 70 and wiring holes 61 and 62 that are through holes provided in the heat sink 60, respectively. The wirings 55 and 56 are electrically connected by being connected to the land 44, respectively.

<2-6. heatsink>
The heat sink 60 receives heat generated from the LEDs 41 via the mounting substrate 42, conducts the heat to the base 30 via the housing 10, and dissipates heat from the base 30 to the outside of the lighting device or the like. And is made of a material having high thermal conductivity. As the high thermal conductivity material, metal, thermal conductive resin, or the like is used. In the present embodiment, for example, aluminum is used.

<2-7. Insulation material>
The insulating member 70 is made of an insulating member such as resin or ceramic, and is disposed between the circuit unit 50 and the heat sink 60, and is a member for ensuring electrical insulation between the two. A projecting portion 73 is formed on the lower surface of the insulating member 70, and abuts against the circuit board 51 to secure a certain distance when assembled.

<2-8. Guide member>
The guide member 80 is a long member extending in a direction from the upper end side to the lower end side of the large diameter portion 11 provided on the inner peripheral surface 11 a of the large diameter portion 11 of the housing 10. The large diameter part 11 is integrally formed using the same material. The guide member 80 has a locking claw 81 formed at the upper end thereof, and extends in a direction orthogonal to the longitudinal direction (almost along the circumferential direction of the casing 10) as it goes from the upper end side to the lower end side of the casing 10. Direction) is gradually increasing. (Hereinafter, the longitudinal direction of the guide member 80 is simply referred to as “longitudinal direction”, and the size in the direction orthogonal to the longitudinal direction and the direction substantially along the circumferential direction of the housing 10 is simply referred to as “width”.) The upper end side of the casing 10 is simply referred to as “upper end side”, and the lower end side of the casing 10 is simply referred to as “lower end side.” The upper end side and the lower end side of the large-diameter portion 11 are the upper ends of the casing 10. The circuit unit 50, the insulating member 70, and the heat sink 60 (hereinafter, the circuit unit 50, the insulating member 70, and the heat sink 60 may be referred to as “component units”), respectively. Defects 57, 75, and 63 are formed. When these component units are inserted into the housing 10 from the upper end side opening 10a, the guide members are positioned in the defects 57, 75, and 63. Guide member And it is movable along the 0. Further, since each component unit is inserted into the housing 10 with the guide member positioned in the defect portions 57, 75, 63, positioning of the component unit in the rotational direction around the lamp axis J is performed. At the same time as insertion into the body 10

  In addition, the guide member 80 may be integrally formed with the housing 10, or may be fixed to the inner peripheral surface 11a using an adhesive or the like after being formed as a separate member.

[3. Locking structure of component unit by guide member]
FIG. 5 is a perspective cross-sectional view schematically showing the state of the circuit unit 50, the insulating member 70, the heat sink 60, and the guide member 80 when accommodated in the housing 10. In FIG. 5, for the sake of easy understanding, the component unit is illustrated by simplifying only the respective missing portions and the peripheral portions thereof as plate-like members, and the circuit unit 50 is provided for various electronic components 52. Is omitted, and only the circuit board 51 is shown. The globe 20, the light emitting unit 40, and each wiring are also not shown.

  The defect portion 57 of the circuit board 51, the defect portion 75 of the insulating member 70, and the defect portion of the heat sink 60 have different widths. The defect portion 57 has the largest width, and the defect portion 75 and the defect portion 63. The width becomes smaller in the order of. The width of the guide member 80 increases from the upper end side toward the lower end side. Here, when the circuit unit 50 is inserted into the housing 10 from the upper end side opening 10a and is moved to the lower end side along the guide member 80, the width of the defective portion 57 and the guide member about the middle in the longitudinal direction. The width | variety of 80 corresponds and the movement to the lower end side from there is stopped. That is, the circuit unit 50 (circuit board 51) is positioned in the longitudinal direction by the guide member 80 at the position. The locking position of the circuit unit 50 in the longitudinal direction of the guide member 80 at this time is referred to as a circuit unit locking position 82. Similarly, the insulating member 70 is moved to the lower end side at the insulating member locking position 83 on the upper end side with respect to the circuit unit locking position 82 because the width of the defective portion 75 and the width of the guide member 80 coincide with each other. It is stopped and positioning in the longitudinal direction is performed at the insulating member locking position 83. Then, at the heat sink locking position 84 on the upper end side with respect to the insulating member locking position 83, the width of the defective portion 63 and the width of the guide member 80 coincide with each other, and movement toward the lower end side of the heat sink 60 is locked. Positioning in the longitudinal direction is performed at the heat sink locking position 84.

  Here, since the width of the defect portion 57 is larger than the width of the guide member 80 at the insulating member locking position 83 and the heat sink locking position 84, the circuit unit 50 has the insulating member locking position 83 and the heat sink locking position 84. In, the movement to the lower end side is not locked.

  Further, since the width of the missing portion 75 is larger than the width of the guide member 80 at the heat sink locking position 84, the movement of the insulating member 70 toward the lower end side is not locked at the heat sink locking position 84.

  The locking structure of the component unit by the guide member described above can be paraphrased as follows. When the circuit unit 50 is the first component unit, the insulating member 70 is the second component unit, the circuit unit locking position 82 is the first position, and the insulating member locking position 83 is the second position, the first component unit The defect portion of the second component unit and the defect portion of the second component unit have different widths, and the guide member 80 locks the movement of the first component unit toward the lower end side in the first position, In the position, the movement of the first component unit to the lower end side is not locked, but the width in the first position and the second position is set so as to lock the movement of the second component unit to the lower end side. Has been determined.

  It should be noted that the insulating member 70 is the first component unit, the heat sink 60 is the second component unit, the insulating member locking position 83 is the first position, and the heat sink locking position 84 is the second position. It holds. Furthermore, the same relationship as described above can be obtained by setting the circuit unit 50 as the first component unit, the heat sink 60 as the second component unit, the circuit unit locking position 82 as the first position, and the heat sink locking position 84 as the second position. It holds.

  In the present embodiment, there are three component units, but the present invention is not limited to this. According to the configuration of the present embodiment, the above relationship is established even in two cases. Furthermore, even if there are four or more component units, any two of them are taken out, the component unit disposed on the lower end side is defined as the first component unit, and the component unit disposed on the upper end side is defined as the second component unit. The same relationship as described above is established.

[4. Locking structure against movement of component unit toward upper end side]
The structure in which the movement of each component unit toward the lower end side along the longitudinal direction is locked by the guide member 80 has been described. Next, a locking structure for the movement of each component unit to the upper end side along the longitudinal direction inside the housing 10 in a state where the illumination light source 1 is assembled will be described below.

  As shown in FIGS. 2, 3, and 4, a locking claw 74 is formed on the peripheral edge portion on the lower surface side of the insulating member 70. Then, when the insulating member 70 is positioned at the insulating member locking position 83, a recess 11 c is formed at a position corresponding to the locking claw 74 on the inner peripheral surface 11 a of the large diameter portion 11. Thus, when the insulating member 70 is inserted into the housing 10 and positioned by the guide member 80, the locking claw 74 and the recess 11c are engaged, and the movement of the insulating member 70 toward the upper end side is locked. Is done. In this case, when the engaging claw 74 is an engaging portion, the recess 11c is an engaged portion. The recess 11c may be a through hole.

  A convex portion 73 extending downward is formed on the lower surface of the insulating member 70, and comes into contact with the upper surface of the circuit board 51 of the circuit unit 50 that is locked at the circuit unit locking position 82. The movement to the upper end side of 50 is stopped.

  As shown in FIG. 3, the heat sink 60 is viewed from above by the locking claw 22 of the globe 20 in a state where the lower end peripheral portion 64 is placed on the step 11 d provided on the inner peripheral surface 11 a of the large diameter portion 11. By being pressed, the movement toward the upper end side is locked.

[5. Summary]
As described above, according to the configuration of the present embodiment, the component unit is inserted into the housing 10 so that the guide member 80 is positioned in the missing portion of each component unit, and therefore the lamp axis J of the component unit is centered. Positioning in the rotational direction can be easily performed regardless of the skill level of the worker.

  In addition, due to the locking structure between the missing part of the component unit and the guide member 80, each component unit can be set in a predetermined manner simply by moving the component unit from the upper end side to the lower end side along the guide member 80 inside the housing 10. Since it is locked at the position, the assembling work of the component unit can be easily performed regardless of the skill level of the worker.

  Furthermore, since the assembling work for each component unit can be performed in one direction (one reciprocating direction) from the upper side to the lower side, the assembling work can be easily mechanized.

  As described above, the configuration of the present embodiment is also effective for automatic assembly using an industrial robot or the like.

<Modification>
As mentioned above, although the structure of this invention was demonstrated based on embodiment, this invention is not limited to the said embodiment, The following modifications can be implemented. In addition, in order to avoid duplication of description, about the same component as embodiment, the same sign is attached | subjected and the description is abbreviate | omitted.

  (1) In the above embodiment, the engagement structure of the locking claw 74 and the recess 11c, the pressing by the locking claw 22 when the locking claw 22 and the engagement hole 11b are engaged, and the protrusion 73 The configuration that uses the pressing to lock the heat sink 60, the insulating member 70, and the circuit unit 50 upward is described. However, the upper locking mechanism of the heat sink 60, the insulating member 70, and the circuit unit 50 is not limited to this, and for example, a locking structure using a groove can be used.

  FIG. 6 is a partially enlarged cross-sectional view showing a state in which the circuit unit 150, the insulating member 170, and the heat sink 160 in Modification 1 are accommodated in the large-diameter portion 111. In FIG. 6, the guide member 80 is not illustrated, but the circuit unit 150, the insulating member 170, and the heat sink 160 are respectively connected to the circuit unit locking position 82, the insulating member locking position 83, and the like of the guide member 80. And it is latched in the heat sink latching position 84, and the downward movement is controlled. For the circuit unit 150, only the circuit board 151 is shown, and the illustration of the electronic component 52 and each wiring is omitted.

  As shown in the figure, the inner peripheral surface 111a of the large-diameter portion 111 has grooves 111b and 111c at positions corresponding to the circuit unit locking position 82, the insulating member locking position 83, and the heat sink locking position 84, respectively. , And a groove 111d are formed in the circumferential direction of the large-diameter portion 111. The depths of the grooves 111b, 111c, and 111d are deeper toward the upper side. The peripheral portions of the circuit board 151, the insulating member 170, and the heat sink 160 have shapes that project outward toward the upper side corresponding to the shapes of the grooves 111b, 111c, and 111d, respectively, and as a result, as shown in FIG. In addition, the peripheral portions of the circuit board 151, the insulating member 170, and the heat sink 160 are fitted in the grooves 111b, 111c, and 111d, respectively, and the upward movement of the circuit board 151, the insulating member 170, and the heat sink 160 is locked. ing. In this case, if the peripheral edge portion is an engaging portion, the groove portion is the engaged portion.

  According to the configuration using the engagement structure between the groove portion and the peripheral edge portion of the component unit in this modification, the locking claw 74 and the concave portion 11c may not be provided, and further, the convex portion 73 may not be provided. Of course, in addition to the locking structure by the groove part, the locking claw 74, the concave part 11c, and the convex part 73 may be used in combination.

  Further, instead of providing the groove portion on the inner peripheral surface 111a of the large diameter portion 111, the groove portion may be provided at the circuit unit locking position 82, the insulating member locking position 83, and the heat sink locking position 84 of the guide member 80, respectively. . In this case, similarly to the above, the groove portion has a shape in which the groove is deeper toward the upper side, and is a boundary (a portion corresponding to a so-called cut) between the missing portion of each of the circuit board 151, the insulating member 170, and the heat sink 160 and the other portion. The shape of the inner peripheral edge portion may be a shape that protrudes inward (in a direction deeper into the groove of the guide member 80) toward the upper side. In this case, when the inner peripheral edge portion is an engaging portion, the groove portion is the engaged portion.

  (2) As a method of locking the upward movement of each component unit, the following modified example can be considered in addition to the configuration of the above embodiment and the modified example 1.

  FIG. 7A is a partially cutaway perspective view showing a state in which the circuit board 251 of the circuit unit 250 in Modification 2 is locked at the circuit unit locking position 282. In the figure, the circuit unit 250 inserted into the large diameter portion 211 from the upper end side opening 210a of the casing 210 is moved downward along the longitudinal direction of the guide member 280 and is locked at the circuit unit locking position 282. It shows the state when FIG. 7B is an essential part enlarged plan view showing a schematic configuration of the missing part 257 of the circuit board 251 and its peripheral part.

  As shown in FIG. 7B, the defect part 257 has a shape in which two defect parts having different notch depths in the direction of the center part of the circuit board 251 are connected in parallel. The first defect portion 257a having a deep depth, the second defect portion 257b having a shallow notch, and the second defect that is a portion extending from the second defect portion 257b to a position corresponding to the first defect portion 257a toward the center of the circuit board 251. It is comprised from the piece 257c. As shown in FIG. 7A, when the circuit unit 250 is inserted into the large diameter portion 211, the guide member 280 is inserted so as to be positioned in the first defect portion 257a. Then, the guide member 280 is moved downward along the longitudinal direction of the guide member 280 while keeping the guide member 280 positioned in the first defect portion 257a. At the circuit unit locking position 282, the width of the guide member 280 and the first defect The width of the portion 257a coincides and the downward movement of the circuit unit 250 is locked. A guide groove portion 282a is formed in the circumferential direction of the large diameter portion 211 at the circuit unit locking position 282 of the guide member 280, and the circuit board 251 is held in a state where the guide member 280 is locked at the circuit unit locking position 282. As indicated by an arrow in FIG. 7A, when the lamp is moved in the direction of rotation about the ramp axis J, the second defect piece 257c rotates through the guide groove 282a. Then, the rear end portion 257b1 in the rotation direction of the second defect portion 257b comes into contact with the side surface 285 of the guide member 280 and the rotation is locked. At this time, the latching claw 258 provided in the vicinity of the rear end 257b1 in the rotation direction on the circuit board 251 engages with the recess 211e provided on the inner peripheral surface 211a of the large-diameter part 211, thereby the circuit board 251. The movement of rotating in the direction opposite to the above is locked. At this time, the second missing piece 257c is located inside the guide groove 282a, and thereby the upward movement of the circuit board 251 and the circuit unit 250 is locked. That is, the locking claw 258 and the recess 211e function as a safety lock.

  As described above, according to the configuration of the present modification, the downward movement of the circuit unit 250 is locked by the engagement between the guide member 280 and the first missing portion 257a, and the circuit unit 250 is positioned in the longitudinal direction. This is done, and the upward movement and the downward movement of the circuit unit 250 are locked by the engagement between the guide groove 282a and the second missing piece 257c. Further, since the movement of the circuit board 251 in the rotation direction is locked by the engagement between the locking claw 258 and the recess 211e, the guide member 280 does not rotate in the direction positioned in the first defect portion 257a. The state where the upward movement of 250 is locked can be stably maintained.

  In the above description, only the locking of the circuit unit 250 has been described, but a similar locking mechanism can be applied to the insulating member and the heat sink. The second missing piece (not shown) of the insulating member rotates through the guide groove 283a provided at the insulating member locking position 283, and the locking claw (not shown) of the insulating member engages with the recess 211f. To do. The second missing portion (not shown) of the heat sink rotates through the guide groove 284a provided at the heat sink locking position 284, and the locking claw (not shown) of the heat sink engages with the recess 211g. Since the globe 20 is placed on the upper surface of the peripheral edge of the heat sink, the locking claw and the recess 211g engaged therewith may be provided below the heat sink.

  (3) In the above embodiment and each modification, the guide member is formed along the inner peripheral surface of the large-diameter portion, but is not limited thereto. For example, you may form a guide member in the aspect spaced apart from the internal peripheral surface of the large diameter part.

  FIG. 8 is a perspective cross-sectional view schematically showing a state where the circuit unit 350, the insulating member 370, and the heat sink 360 in the third modification are accommodated in the large diameter portion 311. In FIG. 8, for the sake of clarity, as in FIG. 5, the component unit is illustrated by simplifying only the respective missing portions and the peripheral portions thereof as plate-like members. The various electronic components 52 are not shown and only the circuit board 351 is shown. The globe 20, the light emitting unit 40, and each wiring are also not shown.

  In this modification, the guide member 380 is formed away from the inner peripheral surface 311a, and correspondingly, the defective portions 357, 375, and 363 of the circuit unit 350, the insulating member 370, and the heat sink 360, respectively. Is not formed as a notch in the embodiment and the first and second modifications, but as a through hole.

  (4) In the said embodiment and each modification, although it was the structure provided with one guide member, it is not restricted to this, You may provide multiple guide members.

  FIG. 9 is a perspective cross-sectional view schematically showing a state in which the circuit unit 450, the insulating member 470, and the heat sink 460 in Modification 4 are housed in the large-diameter portion 411. In FIG. 9, for the sake of clarity, as in FIGS. 5 and 8, the component unit is illustrated by simplifying only the respective missing portions and the peripheral portions thereof as plate-like members. In the unit 450, the various electronic components 52 are not shown, and only the circuit board 451 is shown. The globe 20, the light emitting unit 40, and each wiring are also not shown.

  In this modification, two guide members 480a and 480b are formed at different locations in the circumferential direction of the inner peripheral surface 411a of the large diameter portion 411. The cross-sectional shapes of the guide members 480a and 480b by planes orthogonal to the longitudinal direction are different from each other. In this modification, the cross-sectional shape of the guide member 480a is substantially rectangular, and the cross-sectional shape of the guide member 480b is substantially triangular. is there. In addition, the circuit unit 450, the insulating member 470, and the heat sink 460 include a defect portion having a shape corresponding to the cross-sectional shape of each guide member at a position corresponding to each of the guide members 480a and 480b.

  By providing a plurality of guide members having different cross-sectional shapes in this way, even if trying to insert the component unit upside down into the large diameter portion, the shape of the missing portion does not correspond to the shape of the guide member. It cannot be inserted into the large diameter part successfully. Thereby, it is possible to prevent an error that the component unit is inserted into the large-diameter portion and stored upside down.

  The cross-sectional shape is not limited to a rectangle and a triangle, and may be any two types of shapes.

  Moreover, in this modification, although the case where the cross-sectional shape of two guide members differed was demonstrated, it is not restricted to this. For example, although the cross-sectional shape is the same, the cross-sectional sizes in the same plane orthogonal to the lamp axis may be different. In this case, when the component unit is inserted upside down, the position in the longitudinal direction where the two missing portions are locked is different, so that the operator can notice that it is upside down.

  The two guide members may have the same shape (the same cross-sectional shape and size by the same plane orthogonal to the lamp axis). In this case, the effect of preventing the error of inserting the component unit upside down cannot be expected so much, but there is an effect that the positioning in the longitudinal direction can be easily performed.

  (5) Although the guide member has a shape in which the width gradually increases from the upper end side toward the lower end side in the above-described embodiment and each modification, it is not limited to this.

  FIG. 10 is a perspective cross-sectional view illustrating a locking mechanism between the guide member 580, the circuit unit 550, the insulating member 570, and the heat sink 560 according to the fifth modification.

  In FIG. 10, for the sake of easy understanding, as in FIGS. 5, 8, and 9, the component unit is simplified and illustrated as a plate-shaped member only with respect to each missing portion and its peripheral portion. In the circuit unit 550, illustration of various electronic components 52 is omitted, and only the circuit board 551 is illustrated. The globe 20, the light emitting unit 40, and each wiring are also not shown.

  The guide member 580 is provided on the inner peripheral surface 511a of the large-diameter portion 511, and has a long shape with a substantially constant width from the upper end side to the lower end side.

  On the peripheral surface of the guide member 580, protrusions 582a, 583a, and 584a are formed at positions corresponding to the circuit unit locking position 582, the insulating member locking position 583, and the heat sink locking position 584, respectively. One protrusion 582a is formed on each of the three exposed surfaces excluding the upper end of the guide member 580. The protrusion 583a is formed on two surfaces excluding the upper end portion of the guide member 580, and the protrusion 584a is formed on one surface excluding the upper end portion of the guide member 580.

  The defective portion 563 of the heat sink 560 substantially matches or slightly matches the shape of a cross section (hereinafter referred to as “basic cross-sectional shape”) by a plane orthogonal to the longitudinal direction at the portion where the protrusion of the guide member 580 is not formed. It has a large shape. As a result, when the heat sink 560 is inserted into the large diameter portion 511 from the upper end side, the protrusion 584a cannot pass through the missing portion 563, so that the downward movement of the heat sink 560 is locked by the protrusion 584a. It is locked at the heat sink locking position 584.

  The missing portion 575 of the insulating member 570 has a shape in which the basic cross-sectional shape is substantially the same as the shape of the projection 584a in a plan view at a position corresponding to the projection 584a, or a slightly larger notch is further provided. ing. As a result, when the insulating member 570 is inserted into the large diameter portion 511 from the upper end side, the protrusions 584a and 583a1 can pass through the defect portion 575, but the protrusion 583a2 cannot pass through. The downward movement of 570 is locked and locked at the insulating member locking position 583.

  The missing part 557 of the circuit unit 550 is further provided with a notch that is substantially the same in size or substantially the same size as the shape of each of the projections in plan view at the positions corresponding to the projections 584a and 583a1 and 583a2 in the basic cross-sectional shape. Has the shape. Here, the protrusions 584a and 583a1 have the same position, shape, and size in plan view. Accordingly, when the circuit unit 550 is inserted into the large diameter portion 511 from the upper end side, the projections 584a, 583a1, and 583a2 can pass through the defect portion 575, but the projection 582a3 cannot pass through, so the projection 582a3 The downward movement of the circuit unit 550 is locked and is locked at the circuit unit locking position 582.

  In the fifth modification, one protrusion 584a is provided at the heat sink engagement position 584, two protrusions 583a1 and 583a2 are provided at the insulating member engagement position 583, and the circuit unit engagement position 582 is provided at the circuit unit engagement position 582. The three protrusions 582a1, 582a2, and 582a3 are provided, but the present invention is not limited to this. For example, one protrusion may be provided on each of the three surfaces excluding the upper end portion of the guide member 580. At this time, the three protrusions are provided at positions corresponding to the heat sink locking position 584, the insulating member locking position 583, and the circuit unit locking position 582 in the longitudinal direction.

  The component unit locking structure by the guide member in the modified example 5 described above can be paraphrased as follows. When the circuit unit 550 is the first component unit, the insulating member 570 is the second component unit, the circuit unit locking position 582 is the first position, and the insulating member locking position 583 is the second position, the first component unit The shape of the defect portion 557 of 550 and the defect portion 575 of the second component unit 570 are different, and the guide member 80 locks the movement of the first component unit 550 toward the lower end side at the first position 582. In the second position 583, the movement of the first component unit 550 to the lower end side is not locked, but the first position 582 and the second component unit 570 are locked so as to lock the movement of the second component unit 570 to the lower end side. The shape at the two positions 583 has been determined.

  Also in this case, as in the embodiment, the insulating member 570 is the first component unit, the heat sink 560 is the second component unit, the insulating member locking position 583 is the first position, and the heat sink locking position 584 is the same. The same relationship as described above is established for the second position. Furthermore, the same relationship as above can be obtained by setting the circuit unit 550 as the first component unit, the heat sink 560 as the second component unit, the circuit unit locking position 582 as the first position, and the heat sink locking position 584 as the second position. It holds.

  Further, in this case, as in the embodiment, the above relationship is established even when there are two component units. Furthermore, even when there are four or more component units, any two of them can be determined. If the component unit that is taken out and disposed on the lower end side is the first component unit and the component unit disposed on the upper end side is the second component unit, the same relationship as described above is established.

  Moreover, the latching structure of the component unit by the guide member in the modification 5 can also be paraphrased as follows. The circuit unit 550 is the first component unit, the insulating member 570 is the second component unit, the circuit unit locking position 582 is the first position, the insulating member locking position 583 is the second position, and the protrusion 582a is the first protrusion. When the projection 583a is the second projection, the missing portion 557 of the first component unit 550 is shaped to allow the second projection 583a to pass therethrough, but the missing portion 575 of the second component unit 570 is the second projection. Since the protrusion 583a cannot pass, the second protrusion 583a does not contact the first component unit 550 but contacts the second component unit 570. On the other hand, the missing part 575 of the second component unit 570 has a shape that the second protrusion 583a cannot pass through, so that the second protrusion 583a contacts the second component unit 570. That is, when the first component unit is inserted into the housing from the upper end side, after passing through the second position, the first component unit comes into contact with the first protrusion 582a and is locked at the first position. The unit 570 comes into contact with the second protrusion 583a and is locked at the second position.

  Also in this case, the first component unit and the second component unit are not limited to the circuit unit 550 and the insulating member 570, respectively, and the number of component units is not limited to three.

  (6) In the above embodiment and Modifications 1 to 4, the guide member has a shape in which the width gradually increases from the upper end side to the lower end side of the housing, but is not limited thereto. . For example, the shape of the guide member may be a shape whose width increases stepwise from the upper end side to the lower end side of the housing.

  (7) In the above embodiment and each modification, the cross-sectional shape of the casing by a plane orthogonal to the lamp axis is circular (annular), and the shape of each component unit (in the case of a circuit unit, the shape of the circuit board) ) Also has a disk shape or a shape in which a part of the disk is missing, but is not limited thereto. The cross-sectional shape by a plane orthogonal to the lamp axis of the housing may be, for example, an ellipse (elliptical ring) or a polygon (polygonal ring). In that case, the shape of each component unit (in the case of a circuit unit, a circuit The shape of the substrate) may be a shape matched to that.

  (8) In the above-described embodiment and each modification, each component unit is accommodated in a substantially parallel (so-called layered manner) space in the lamp axis direction with a space between each component unit in a posture substantially orthogonal to the lamp axis. However, it is not limited to this. For example, they may be accommodated substantially parallel to each other along another axis having a predetermined angle with respect to the lamp axis. In this case, the guide member may be provided in a direction parallel to the other axis.

  (9) Furthermore, it is good also as a structure accommodated in the inside of a housing | casing in the state in which each component unit was arranged in the rotation direction centering on the lamp shaft. In this case, the guide member may be formed in a spiral shape extending from the upper end side to the lower end side of the housing along the inner peripheral surface of the housing, or in a ring-opening shape extending in the circumferential direction.

  In addition, the light source for illumination which combines suitably the partial structure of the light source for illumination which concerns on embodiment, and the structure which concerns on each said modification may be sufficient. In addition, the materials, numerical values, and the like described in the description of each of the above embodiments and modifications are merely preferable examples, and are not limited thereto. Moreover, the dimension and ratio of each member in each drawing are given as an example, and do not necessarily coincide with the dimension and ratio of an actual illumination light source. Furthermore, it is possible to appropriately change the configuration of the illumination light source without departing from the scope of the technical idea of the present invention.

  The present invention can be used as a technique for providing an illumination light source that can be easily assembled.

DESCRIPTION OF SYMBOLS 1 Illumination light source 10,210,310,410,510 Case 10a Upper end side opening 10b Lower end side opening 11, 111, 211, 311, 411, 511 Large diameter part 11a, 111a, 211a, 311a, 411a, 511a Inner circumference Surface 11b, 23: Engagement hole 11c, 211e Recess 11d: Step 12: Small diameter portion 20: Globe 21: Open side end 22, 74, 81, 258 Locking claw 23 Inner surface 30 Base 31 Shell portion 32 Insulating member 33 Eyelet Part 40 Light emitting part 41 Semiconductor light emitting element (LED)
42 mounting board 43 sealing body 44 land 50, 150, 250, 350, 450, 550 circuit unit 51, 151, 251, 351, 451, 551 circuit board 52 electronic component 53, 54, 55, 56 wiring 57, 63, 75, 257, 357, 363, 375, 457a, 463a, 475a, 457b, 463b, 475b, 557, 563, 575 Defects 60, 160, 360, 460, 560 Heat sink 61, 62, 71 Wiring hole 64 Bottom edge Portion 70: Insulating member 73 Protruding portion 80, 280, 380, 480a, 480b, 580 Guide member 82, 282, 582 Circuit unit locking position 83, 283, 583 Insulating member locking position 84, 284, 584 Heat sink locking position 111b, 111c, 111d groove 211e, 2 1f, 211 g recess 257a first defect 257b second defect 257c second defective piece 282a, 283a, 284a guide groove 285 side 582a, 582a1,582a2,582a3,583a, 583a1,583a2,584a projections

Claims (13)

A light source for illumination comprising a cylindrical housing that houses the first and second component units therein,
The housing includes therein a long guide member extending in a direction from one end side to the other end side,
Each of the first and second component units has a defect portion having a different shape or size, and when the first and second component units are inserted into the housing from the one end side, the guide member is positioned in the defect portion, respectively. Is movable along the longitudinal direction of the guide member
The guide member prohibits movement of the first component unit to the other end side by locking at a first position in the longitudinal direction, and the guide member at the second position on the one end side than the first position. In the first position and the second position, the movement of the first component unit to the other end side is permitted, but the movement of the second component unit to the other end side is prohibited by locking. An illumination light source characterized by having a shape or size defined. The guide member has a shape in which the width gradually increases from the one end side to the other end side along the longitudinal direction;
The width of the guide member is smaller than the width of the defective portion of the first component unit at the second position, and coincides with the width of the defective portion of the second component unit. 2. The illumination light source according to claim 1, wherein the illumination light source is larger than the width of the missing portion of the second component unit and matches the width of the missing portion of the first component unit. The guide member has a first protrusion at the first position and a second protrusion at the second position;
The second protrusion does not contact the first component unit, but contacts the second component unit,
The illumination light source according to claim 1, wherein the first protrusion is in contact with the first component unit. The second component unit has an engaging portion,
At least one of the housing and the guide member engages with the engaging portion when the second component unit is locked by the guide member at the second position, and the second component unit The illumination light source according to claim 1, further comprising an engaged portion that prohibits movement toward the one end side in the longitudinal direction. The engaging portion is a locking claw provided in the second component unit,
The illumination light source according to claim 4, wherein the engaged portion is a recess or a through-hole provided in an inner peripheral surface of the housing. The engaging portion is a peripheral portion of the second component unit,
The illumination light source according to claim 4, wherein the engaged portion is a groove provided on an inner peripheral surface of the housing. The engaging portion is an inner peripheral edge that is a boundary portion between the missing portion and the other portion in the second component unit,
The illumination light source according to claim 4, wherein the engaged portion is a groove provided on a surface of the guide member. The illumination light source according to claim 1, wherein the guide member is formed on an inner peripheral surface of the casing. The said guide member is in contact with the internal peripheral surface of the said housing | casing in the said other end side edge part, and is spaced apart from the said internal peripheral surface in the other part. Light source for lighting. The illumination light source according to claim 1, wherein a plurality of the guide members are provided inside the housing. 11. The illumination light source according to claim 10, wherein at least one of the plurality of guide members is different in cross-sectional shape perpendicular to the longitudinal direction from the remaining guide members. The first and second component units are:
A light-emitting unit in which a semiconductor light-emitting element is disposed on the front surface of the mounting substrate with its main emission direction facing forward;
A plurality of electronic components for converting electric power supplied from the outside to emit light from the semiconductor light emitting element, and a circuit unit having a circuit board on which they are mounted;
A heat sink for dissipating the heat generated in the light emitting unit;
2. The illumination according to claim 1, comprising at least one of insulating members disposed between the heat sink and the circuit unit to ensure electrical insulation between the two. Light source. The illumination light source according to claim 1, wherein a globe is attached to the one end of the casing and a base is attached to the other end.

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