CN204879578U - Lighting source - Google Patents

Abstract

The utility model discloses a lighting source is the bulb shape lamp (1) that possesses light emitting module (10) and framework (50), has: first barrel (60) are the drum shape, second barrel (70) are the drum shape, are configured as to insert first barrel (60), can carry out axial displacement for first barrel (60), and first protruding portion (61a), second protruding portion (61b) and third protruding portion (61c), the configuration is in the arbitrary party of the outer peripheral face (70a) of the inner peripheral surface (60a) of first barrel (60) and second barrel (70) respectively, in axial same position, another party's butt with inner peripheral surface (60a) and outer peripheral face (70a), the angle that forms in the position of the position of first protruding portion (61a) and second protruding portion (61b) the angle of position and the position formation of third protruding portion (61c) of first angle ( theta 1) and first protruding portion (61a) promptly is second angle ( theta 2), be more than 120 respectively and be less than 180.

Description

Illumination light source

Technical field

The utility model relates to the illumination light source possessing light emitting module, and this light emitting module has the light-emitting component of light emitting diode (LED: LightEmittingDiode) etc.

Background technology

The semiconductor light-emitting elements of LED etc., due to there is small-sized, high efficiency and the life-span long, be therefore used as the light source of various goods.

Such as, bulb-shaped lamp in the past possesses: LED module, cover LED module enclosed globe shade, to provide the drive circuit of electric power to LED module, with the framework arranged round the mode of drive circuit and the lamp holder accepting electric power.Multiple LED that LED module possesses substrate and installs on substrate.

Patent document 1: Japanese Unexamined Patent Publication 2006-313717 publication

Comprise the bulb-shaped lamp described in above-mentioned patent document 1, bulb-shaped lamp in the past, be usually arranged on and have on the ligthing paraphernalia of lamp socket, the lamp holder of bulb-shaped lamp is screwed into this lamp socket, and the electric power according to providing from ligthing paraphernalia sends illumination light.Therefore, from lamp socket to light emitting module, the distance of (such as LED module) is certain.

On the other hand, there is requirement will change the position of light source, in order to respond this requirement, such as, having occurred the lamp that can change entire length.

, after such lamp changes length, for changing the movable part of length, loosen because of the impact of wind etc., this loosens the reason becoming and such as produce noise etc.

Utility model content

The utility model consider described in problem in the past, its object is to provide one to adjust length, and the illumination light source that the stability of structure is high.

In order to reach described object, the illumination light source that a scheme of the present utility model relates to, possess light emitting module and framework, described framework has: the first cylindrical shell, cylindrical shape, second cylindrical shell, cylindrical shape, is configured to be inserted into described first cylindrical shell, can moves axially relative to described first cylindrical shell, and first protuberance, second protuberance and the 3rd protuberance, be configured in any one party of the inner peripheral surface of described first cylindrical shell and the outer peripheral face of described second cylindrical shell respectively, in described axial same position, abut with the opposing party of described inner peripheral surface and described outer peripheral face, connecting the position of described first protuberance, the center of the circle of the position of described second protuberance and the position of described 3rd protuberance, a angle that the position of () described first protuberance and the position of described second protuberance are formed i.e. first jiao of that is second jiao, angle formed with the position of (b) described first protuberance and the position of described 3rd protuberance, be respectively more than 120 ° and be less than 180 °.

Further, in described illumination light source, described first protuberance, is configured on the perpendicular bisector of the line segment of the position of position and described 3rd protuberance connecting described second protuberance.

Further, in described illumination light source, described first protuberance, described second protuberance and described 3rd protuberance, respectively described axially in elongated shape.

Further, in described illumination light source, described first protuberance, described second protuberance and described 3rd protuberance composition group, described be axially configured with discretely multiple.

Further, described illumination light source also possesses: drive circuit, is incorporated in described framework, for making described light emitting module luminous; And lamp holder, be configured in the end of exposing from described first cylindrical shell of described second cylindrical shell, the electric power accepted from outside is supplied to described drive circuit by described lamp holder.

According to the utility model, a kind of adjustable length can be provided, and the illumination light source that the stability of structure is high.

Accompanying drawing explanation

Fig. 1 is the oblique view of the profile representing the bulb-shaped lamp that embodiment relates to.

Fig. 2 A is the exploded perspective view of the bulb-shaped lamp that embodiment relates to.

Fig. 2 B is the oblique view of the formation summary representing the light-emitting component that embodiment relates to.

Fig. 3 is the figure having installed the cross section summary of the ligthing paraphernalia of bulb-shaped lamp representing that embodiment relates to.

Fig. 4 A is the bottom view of the first cylindrical shell that embodiment relates to.

Fig. 4 B is the bottom view of the second cylindrical shell that embodiment relates to.

Fig. 5 A is the oblique view being arranged on the protuberance of the first cylindrical shell and the profile of anti-delinking part representing that embodiment relates to.

Fig. 5 B is the figure of the part in the A-A cross section representing Fig. 5 A.

Fig. 6 is the bottom view of the framework that embodiment relates to.

Fig. 7 is the sectional view of the framework under the state being combined with the first cylindrical shell and the second cylindrical shell.

Fig. 8 is the sectional view of the framework that the variation 1 of embodiment relates to.

Fig. 9 is the sectional view of the framework that the variation 2 of embodiment relates to.

Figure 10 A is the first figure of the cross sectional shape representing the protuberance that the variation 3 of embodiment relates to.

Figure 10 B is the second figure of the cross sectional shape representing the protuberance that the variation 3 of embodiment relates to.

Figure 11 is the oblique view of the example of the allocation position of the group of three protuberances of the variation 4 representing embodiment.

Symbol description

1 bulb-shaped lamp (illumination light source)

10 light emitting modules

40 drive circuits

50 frameworks

60 first cylindrical shells

60a inner peripheral surface

61a, 71a first protuberance

61b, 71b second protuberance

61c, 71c the 3rd protuberance

70 second cylindrical shells

70a outer peripheral face

90 lamp holders

Detailed description of the invention

Below, with reference to accompanying drawing, embodiment of the present utility model is described.Further, each figure is ideograph, is not rigorous diagram.

In addition, embodiment described below and its variation are all that an object lesson of the present utility model is shown.The allocation position of following embodiment and the numerical value shown in its variation, shape, material, inscape, inscape and type of attachment etc. are all examples, and purport is not restriction the utility model.Further, in the inscape of following embodiment, the inscape not having to record is shown in the independent claims of upper concept, can illustrates it is arbitrary inscape.

In following embodiment and variation thereof, as an example of illumination light source, bulb-shaped lamp (LED bulb) is described.

[entirety of bulb-shaped lamp is formed]

First, the entirety about bulb-shaped lamp 1 of the present embodiment is formed, and illustrates with Fig. 1 ~ Fig. 3.

Fig. 1 is the oblique view of the profile representing the bulb-shaped lamp 1 that embodiment relates to.

Fig. 2 A is the exploded perspective view of the bulb-shaped lamp 1 that embodiment relates to.Fig. 2 B is the oblique view of the formation summary representing the light-emitting component that embodiment relates to.

Fig. 3 is the figure having installed the cross section summary of the ligthing paraphernalia of bulb-shaped lamp 1 representing that embodiment relates to.

In addition, at Fig. 2 A, the chain-dotted line along the description of paper above-below direction illustrates the lamp axle J (central shaft) of bulb-shaped lamp 1.Lamp axle J, time bulb-shaped lamp 1 is installed to the lamp socket of ligthing paraphernalia, becomes the axle of center of rotation, consistent with the rotating shaft of lamp holder 90 in present embodiment.

In addition, the diagram of the key element of the electronic component that drive circuit 40 possesses and the lead-in wire be connected with drive circuit 40 etc. is eliminated at Fig. 2 A.

In addition, in figure 3, generally will be clear that ligthing paraphernalia illustrates with cross section in order to what make the structure of ligthing paraphernalia, and bulb-shaped lamp 1 illustrates with side.

As shown in FIG. 1 to 3, bulb-shaped lamp 1 of the present embodiment possesses light emitting module 10 and framework 50.

Light emitting module 10 is that the power supply of the drive circuit 40 by being accommodated in framework 50 in present embodiment carrys out luminous device, possesses substrate 11 and the multiple light-emitting components 12 being arranged on substrate 11.Substrate 11 is plate-like substrate of present embodiment midplane apparent time circular, is configured in the opening portion of the first cylindrical shell 60.

As the kind of substrate 11, such as, metal bottom substrate is shown, or the ceramic substrate etc. be made up of aluminium oxide etc.

In the present embodiment, the one side of substrate 11 has installed multiple (being 18 in present embodiment) light-emitting component 12.

In present embodiment, as light-emitting component 12, adopt surface that (SMD: SurfaceMountDevice) type LED element is installed.

As the light-emitting component 12 of SMD type LED element, as shown in Figure 2 B, have: container 12a, the LED chip 12b installed in container 12a, containing conversion from the seal member 12c of the material for transformation of wave length of the wavelength of the light of LED chip 12b.

In the present embodiment, as LED chip 12b, such as, adopt the blue LED die sending blue light.As blue LED die, such as, the centre wavelength be made up of the material of InGaN system is adopted to be the gallium nitride based semiconductor light-emitting elements of 440nm ~ 470nm.In this situation, in order to obtain white light, as material for transformation of wave length, such as, adopt the yellow fluorophor particle that yttrium-aluminium-garnet (YAG) is.

Drive circuit 40, by not shown pair of lead wires, accept alternating current from the lamp holder 90 connected, be converted to direct current, the direct current after conversion, via not shown pair of lead wires, is supplied to light emitting module 10.Multiple electronic components (not shown) that drive circuit 40 has circuit substrate and installs on this circuit substrate.

Drive circuit 40, in present embodiment, is accommodated in the second cylindrical shell 70, is fixed on the second cylindrical shell 70 by screw stop, bonding or engaging etc.In addition, in present embodiment, drive circuit 40, the posture parallel with lamp axle J with the interarea of circuit substrate and configuring, but, the posture that drive circuit 40 is configured is not particularly limited.

In addition, drive circuit 40 can not have alternating current is converted to galvanic function.Such as directly provide galvanic situation from ligthing paraphernalia to bulb-shaped lamp 1, as long as the galvanic circuit that drive circuit 40 has the characteristic direct current provided from lamp holder 90 being adjusted to applicable light emitting module 10 is just passable.

In addition, provide the galvanic situation of the characteristic of applicable light emitting module 10 to bulb-shaped lamp 1 via lamp holder 90 under, bulb-shaped lamp 1 can not possess drive circuit 40.In that case, lamp holder 90 is connected by pair of lead wires with light emitting module 10.

Have in the framework 50 of present embodiment: the first cylindrical shell 60 of drum and the second cylindrical shell 70 of drum, this second cylindrical shell 70 is configured to be inserted into the first cylindrical shell 60, can move axially relative to the first cylindrical shell 60.The raw material of the first cylindrical shell 60 and the second cylindrical shell 70 are insulative resins of such as polybutylene terephthalate (PBT) etc.

In addition, in present embodiment, be as the first cylindrical shell 60 of drum and respective axially consistent of the second cylindrical shell 70 equally, be the direction parallel with Z axis.Therefore, the axis of the framework 50 be made up of the combination of the first cylindrical shell 60 and the second cylindrical shell 70 is also the direction parallel with Z axis.

Framework 50, as characteristic key element, at least has three protuberances.Specifically, framework 50 possesses the first protuberance, the second protuberance and the 3rd protuberance, these protuberances are configured in either party of the inner peripheral surface 60a of the first cylindrical shell 60 and the outer peripheral face 70a of the second cylindrical shell 70 respectively, and on the same position of axis, abut with the opposing party of outer peripheral face 70a with inner peripheral surface 60a.

In present embodiment, framework 50 has the first protuberance 61a, the second protuberance 61b and the 3rd protuberance 61c of the inner peripheral surface 60a being configured in the first cylindrical shell 60.

At the bulb-shaped lamp 1 of present embodiment, because framework 50 has these protuberances, thus the first cylindrical shell 60 loosening relative to the second cylindrical shell 70 can be suppressed.

In addition, the outer peripheral face 70a of the second cylindrical shell 70, is provided with 2 flanges 78 as shown in Figure 2 A.These flanges 78 have the function of deviating from preventing the second cylindrical shell 70 from the first cylindrical shell 60, and the function suppressing the second cylindrical shell 70 to rotate relative to the first cylindrical shell 60.About the detailed content of framework 50, describe in back with Fig. 4 A ~ Fig. 7.

In addition, as discussed, framework 50 carries out axial stretching, and in addition, the first cylindrical shell 60 can rotate relative to the second cylindrical shell 70 centered by axle.Therefore, be fixed on drive circuit 40 and the light emitting module 10 of the second cylindrical shell 70, in order to carry out these flexible or rotate action time electrical connection be not also cut off, such as connect with fully long lead-in wire.

Such as, in addition, in present embodiment, shown in Fig. 2 A, in the end being configured with the side of light emitting module 10 of the first cylindrical shell 60, the cover 80 at inner surface with reflecting plate is installed.Cover 80 with the opening of light emitting module 10 opposite side, be configured with the optics 81 with light transmission.

Optics 81, be such as make from light emitting module 10 release light diffusion and through parts.The light diffusion function that optics 81 has, the photodiffusion material of the silica comprised in such as, resin by formation optics 81 or calcium carbonate etc. realizes.In addition, form the resin of optics 81 or the inner surface of glass or outer surface, formed tiny concavo-convex, thus realize light diffusion function.

In addition, optics 81 is not to have light diffusion function, and optics 81 can have from outside can the transparency of degree of visual confirmation light emitting module 10.

Lamp holder 90, is supplied to drive circuit 40 by the electric power accepted from outside.Such as from the commercial power supply of AC100v, alternating current is provided to lamp holder 90.

Lamp holder 90 has end cylindrical shape in metal.In present embodiment, lamp holder 90 is configured in the end of exposing from the first cylindrical shell 60 of the second cylindrical shell 70.Such as, in this end of the second cylindrical shell 70, be provided with the installation portion (not shown) defining screw thread at outer peripheral face, this installation portion is screwed into the inside of lamp holder 90, thus lamp holder 90 is installed to the second cylindrical shell 70.

The kind of lamp holder 90, is not particularly limited, and in present embodiment, adopts the lamp holder of Edison's screw socket type (E type) of screw type.As lamp holder 90, such as, adopt the lamp holder of E26 type or E17 type or E16 type etc.

There is the bulb-shaped lamp 1 of described formation, as shown in Figure 3, such as, be arranged on ligthing paraphernalia 3 that be embedded in the ceiling 200 of building, baried type.In other words, as below ceiling side direction (corridor or wall etc.) send the Down lamp of illumination light, bulb-shaped lamp 1 can be adopted.

Ligthing paraphernalia 3 possesses: the main part 5 being formed with the space of storage bulb-shaped lamp 1 and the lamp socket 4 be connected with power supply.Be screwed into by the lamp holder 90 of bulb-shaped lamp 1, lamp socket 4 is electrically connected with lamp holder 90 and is mechanically connected, and provides such as from the alternating current of source power supply to lamp holder 90.

At this, lamp socket 4 is lamp sockets of the lamp holder of Edison's screw socket type (E type) can installing E26 type or E17 type etc., for ligthing paraphernalia 3, can install the bulb-shaped lamp of common bulb-shaped lamp etc.

In other words, be utilize the common ligthing paraphernalia can installing common bulb-shaped lamp, the device of illumination light can be provided at bulb-shaped lamp 1 of the present embodiment.

In addition, comprise the ligthing paraphernalia 3 shown in Fig. 3, in usual ligthing paraphernalia, the degree of depth (such as, the width of the Z-axis direction of the main part 5 of Fig. 3) covering the cap assembly of bulb-shaped lamp is various.Thus when bulb-shaped lamp is arranged on ligthing paraphernalia, according to the kind of ligthing paraphernalia, which position the position of the front end (summit of enclosed globe shade) of bulb-shaped lamp is such as positioned at for cap assembly is different.

, bulb-shaped lamp 1 of the present embodiment has the framework 50 that can stretch, and can maintain the loosening stable state waited of suppression.

Thus, such as shown in Figure 3, with the photoirradiated surface of bulb-shaped lamp 1 (outer surface of optics 81) close to the mode of ceiling 200, the length of framework 50 can be adjusted.

Below, about the detailed content of framework 50 with described feature, illustrate with Fig. 4 A ~ Fig. 7.

[detailed content of framework]

The bottom view that the bottom view that Fig. 4 A is the first cylindrical shell 60 that embodiment relates to, Fig. 4 B are the second cylindrical shells 70 that embodiment relates to.Specifically, Fig. 4 A and Fig. 4 B is the profile of the first cylindrical shell 60 when seeing from the below of Fig. 2 A (Z axis minus side, lower with) and the second cylindrical shell 70.

Fig. 5 A is the oblique view being arranged on the protuberance of the first cylindrical shell 60 and the profile of anti-delinking part 64 representing that embodiment relates to.Fig. 5 B is the figure of the part in the A-A cross section representing Fig. 5 A.Specifically, the state the first cylindrical shell 60 being axially cut to roughly half is shown at Fig. 5 A.In addition, at Fig. 5 A because illustrate the roughly half of the first cylindrical shell 60, so there is no diagram first protuberance 61a, in present embodiment, the shape of the first protuberance 61a and size identical with the second protuberance 61b and the 3rd protuberance 61c.

Fig. 6 is the bottom view of the framework 5 that embodiment relates to.Specifically, Fig. 6 illustrates when the below of Fig. 2 A is seen, is combined with the profile of the framework 50 of the state of the first cylindrical shell 60 and the second cylindrical shell 70.

Fig. 7 is the sectional view of the framework 50 under the state being combined with the first cylindrical shell 60 and the second cylindrical shell 70.Specifically, illustrate framework 50 at Fig. 7, in position that axial protuberance (61a ~ 61c) exists, cross section orthogonal to the axial direction.

In present embodiment, be the opening (opening of the below of Fig. 2 A) not configuring the side of anti-delinking part 64 of first cylindrical shell 60 of D1 from internal diameter, be inserted into the second cylindrical shell 70 that external diameter is D2 (D2<D1).Be inserted into the second cylindrical shell 70 of the first cylindrical shell 60, the flange 78 arranged at outer peripheral face 70a abuts with anti-delinking part 64, thus prevents from deviating from from the first cylindrical shell 60.

In the present embodiment, when the second cylindrical shell 70 is inserted into first cylindrical shell 60, the protuberance of more than three that the second cylindrical shell 70 and the first cylindrical shell 60 possess abuts.Thus limit the relative motion of the radial direction of the first cylindrical shell 60 and the second cylindrical shell 70.In addition, the height from inner peripheral surface 60a of anti-delinking part 64 (radial length), short from the height of inner peripheral surface 60a than protuberance (61a ~ 61c), so the restriction of the in fact action of the radial direction of nonintervention second cylindrical shell 70.

In present embodiment, as shown in Figure 4 A, at the inner peripheral surface 60a of the first cylindrical shell 60, be configured with the first protuberance 61a, the second protuberance 61b and the 3rd protuberance 61c.

In addition, these protuberances (61a ~ 61c), such as, formed as the key element of one at the first cylindrical shell 60, but, can making as other element separately of protuberance (61a ~ 61c), then be installed to the inner peripheral surface 60a of the first cylindrical shell 60.

In present embodiment, the first protuberance 61a, the second protuberance 61b and the 3rd protuberance 61c's is respective, as shown in Figure 6, abuts with the outer peripheral face 70a of the second cylindrical shell 70.

In other words, the outer diameter D 2 (external diameter of the part of removing flange 78) of the second cylindrical shell 70 is designed to roughly equal by the diameter of a circle on the first protuberance 61a, the second protuberance 61b and the 3rd protuberance 61c summit separately.

Specifically, the first cylindrical shell 60 and the second cylindrical shell 70 raw material are PBT, and when being 30mm by the diameter of a circle on the summit of protuberance (61a ~ 61c), it is such as 29.8mm ~ 30mm that the outer diameter D 2 of the second cylindrical shell 70 designs.In other words, when considering the tolerance made, the first cylindrical shell 60 and the second cylindrical shell 70 are designed to the second cylindrical shell 70 and the first cylindrical shell 60 can slide mutually, and the second cylindrical shell 70 inserts the first cylindrical shell 60 has difficulties.

Such as, when second cylindrical shell 70 is inserted into first cylindrical shell 60, three protuberances (61a ~ 61c) respective, by carrying out elastic deformation or plastic deformation etc., allow the relative movement of the axis of the second cylindrical shell 70 and the first cylindrical shell 60, and the relative movement that restriction is radial.First cylindrical shell 60 and the second cylindrical shell 70 various sizes, consider to carry out such action and to be determined.

Thereby, it is possible to the length of the axis of adjustment framework 50, and realize the stabilisation (loosening suppression) of the position relative to the second cylindrical shell 70 of the first cylindrical shell 60.

In addition, the fixed cell for the length after fixed adjustment that framework 50 possesses, is not particularly limited.Such as, can by the not shown tip, radial direction runs through a part for the first cylindrical shell 60 and a part for the second cylindrical shell 70, thus the length of fixed frame 50.In addition, according to can the latch structure (not shown) of fixed position in multiple stage, the relative position of the axis of the first cylindrical shell 60 and the second cylindrical shell 70 can be adjusted in multiple stage.In addition, framework 50 does not have the clear and definite fixed cell of the tip etc., can rely on the bed knife of three protuberances, maintains the length after the adjustment of framework 50.

At this, in present embodiment, in order to improve the effect that above-mentioned suppression loosens, the position P3 of the position P1 of the first protuberance 61a, the position P2 of the second protuberance 61b and the 3rd protuberance 61c, meets following condition.

Namely, at the center P0 of the circle (circle formed by inner peripheral surface 60a in the present embodiment) of connection P1, P2 and P3, (a) first protuberance 61a position P1 and angle i.e. first jiao of θ 1 of being formed of the position P2 of the second protuberance 61b and (b) first protuberance 61a position P1 and the angle that formed of the position P3 of the 3rd protuberance 61c that is second angle θ 2, be respectively more than 120 ° and be less than 180 °.

More specifically, P1, P2 and P3 be not circumferentially be configured to separate the interval of 120 ° equably, when with the position P1 of the first protuberance 61a for benchmark, the second protuberance 61b and the 3rd protuberance 61c, is configured on the position far away than the position of equalization respectively.

Thus, the first cylindrical shell 60 of mutually pushing in radial direction with 3 and the second cylindrical shell 70, the stability of radial relative position is improved.

Such as, the dynamic balance of the Y direction of the second cylindrical shell 70 is illustrated as follows in the figure 7.

That is, the second cylindrical shell 70 accepts the power F1 in the positive direction of Y-axis from the first protuberance 61a.In addition, the second cylindrical shell 70, accepts the power F2 that tilts relative to Y-axis and F3 from the 3rd protuberance 61c and the second protuberance 61b.

In this situation, the composition F3' of the Y direction of composition F2' and F3 of the Y direction of F2 makes a concerted effort and F1 containing.

At this, when F2'=cos θ a, θ a are more close to 0 °, in other words, first jiao of θ 1 (with reference to figure 4A) is more close to 180 °, and F2' just becomes larger.

At this, when F3'=cos θ b, θ b are more close to 0 °, in other words, second jiao of θ 2 (with reference to figure 4A) is more close to 180 °, and F3' just becomes larger.

Thus first jiao of θ 1 is more close to 180 °, or second jiao of θ 2 is more close to 180 °, the making a concerted effort of F2' and F3' become larger, thus, F1 also becomes larger.

That is, briefly, at least one party of first jiao of θ 1 and second jiao of θ 2 is more close to 180 °, and the bed knife of the mutual Y direction of the first cylindrical shell 60 and the second cylindrical shell 70 more improves.

Its result, can improve the inhibition of the relative movement of the radial direction to the first cylindrical shell 60 and the second cylindrical shell 70.

In addition, when θ a and θ b is all less than 90 °, in other words, when first jiao of θ 1 and second jiao of θ 2 is all large than 90 °, F2' and F3' is all large than 0.In other words, can limit the relative movement of the radial direction relative to the first cylindrical shell 60 of the second cylindrical shell 70.

But, such as, consider that the second cylindrical shell 70 is between adjacent two protuberances of circumference (between P1 and the P2 of Fig. 4 A, between P2 and P3, between P1 and P3) direction loosen possibility, need the isotropism of the position of three protuberances (61a ~ 61c).In other words, be larger than 90 ° with first jiao of θ 1 of Fig. 4 A and second jiao of θ 2 and be less than compared with the situation of 120 °, preferably θ 1 and θ 2 is 120 °.

In addition, as described above, first jiao of θ 1 and second jiao of θ 2 separately more close to 180 °, as mentioned above, the first cylindrical shell 60 in Y direction (connecting the position P1 of the first protuberance 61a and the direction of center P0) and the mutual bed knife more raising of the second cylindrical shell 70.

In addition, when the both sides of first jiao of θ 1 and second jiao of θ 2 become 180 °, in other words, second protuberance 61b is overlapping with the 3rd protuberance 61c, second cylindrical shell 70 is with two dot point arranged in Y direction, the stability of the first cylindrical shell 60 and the mutual X-direction of the second cylindrical shell 70 reduces.

Thus, at the bulb-shaped lamp 1 of present embodiment, as the respective value of first jiao of θ 1 and second jiao of θ 2, adopt more than 120 ° and be less than the value of 180 °.

Thus, improve the mutual bed knife of the first cylindrical shell 60 and the second cylindrical shell 70, its result, the loosening relative to the second cylindrical shell 70 of the first cylindrical shell 60 can be suppressed.Its result, can suppress such as the sound caused because wind etc. first cylindrical shell 60 loosens.

In addition, such as in order to suppress loosening of the first cylindrical shell 60, three protuberances (61a ~ 61c) are not set at the first cylindrical shell 60, imagine the situation having made the first cylindrical shell 60 and the second cylindrical shell 70 in the mode that the internal diameter of the first cylindrical shell 60 is generally consistent with the external diameter of the second cylindrical shell 70.In that case, the frictional force of the inner peripheral surface of the first cylindrical shell 60 and the outer peripheral face of the second cylindrical shell 70 is excessive, and stretching of framework 50, in fact becomes impossible or difficult state.But bulb-shaped lamp of the present embodiment, by three protuberances (61a ~ 61c) from radial support second cylindrical shell 70, thus can suppress the first cylindrical shell 60 framework 50 can be made again to stretch swimmingly relative to loosening of the second cylindrical shell 70.

At this, in framework 50 of the present embodiment, as shown in Figure 4 A, the distance between P2 and P3 is relatively little.Thus, when considering the tolerance of the first cylindrical shell 60 and the respective size of the second cylindrical shell 70, between P2 and P3 direction (to Y direction walk abreast or close to its direction), the first cylindrical shell 60 reduces relative to the possibility of the small movement (loosening) of the second cylindrical shell 70.

In other words, with three protuberances (61a ~ 61c) compared with the situation about circumferentially configuring equably, the free degree in the direction loosened reduces.

In addition, on the other hand, the distance between P1 and P2 and the distance of P1 and P3 relatively large, as mentioned above, the bed knife in direction (Y direction) connecting P1 and center P0 is relatively large.Therefore, as a result, the direction between P1 and P2, and any one of direction between P1 and P3, can suppress 60 of the first cylindrical shell to loosen.

As described above, bulb-shaped lamp 1 of the present embodiment is the adjustment can carrying out length, and the bulb-shaped lamp that the stability of structure is high.

In addition, in present embodiment, such as shown in Figure 4 A, the first protuberance 61a is configured on the perpendicular bisector of the line segment of the position P2 of connection second protuberance 61b and the position P3 of the 3rd protuberance 61c.

Thus, such as, at least in the direction (Y direction) parallel with this perpendicular bisector, the deviation of the axle of the first cylindrical shell 60 and the axle of the second cylindrical shell 70 can be suppressed.In other words, the position limitation of the mutual radial direction of the first cylindrical shell 60 and the second cylindrical shell 70 can be carried out more well.

In addition, in the present embodiment, the first protuberance 61a, the second protuberance 61b, the 3rd protuberance 61c are being axially elongated shape (with reference to figure 5A and Fig. 5 B) respectively.

Thus, such as, by with radial parallel axle centered by, the first cylindrical shell 60 reduces relative to the possibility of the small rotation (loosening) of the second cylindrical shell 70.

In addition, bulb-shaped lamp 1 possesses as follows: be accommodated in framework 50, for making the drive circuit 40 of light emitting module 10 luminescence; And at the lamp holder 90 from the configuration of end that the first cylindrical shell 60 exposes of the second cylindrical shell 70, this lamp holder 90 be the electric power accepted from outside is supplied to drive circuit 40 lamp holder.Lamp holder 90, the general lamp holder of E26 type that the bulb-shaped lamp that such as uses in average family can be adopted common etc.

Therefore, such as, bulb mounting shape lamp 1 on the ligthing paraphernalia that can possess at common house, and total length can adjust, thus such as can be adjusted to the appropriate length corresponding to the size of ligthing paraphernalia.

In addition, the structure of framework 50 that embodiment relates to can be the structure beyond the structure shown in Fig. 1 ~ Fig. 7.At this, with Fig. 8 ~ Figure 11, the various variation about framework 50 are described.

(variation 1)

Framework 50, the first protuberance 61a related at described embodiment is configured on the perpendicular bisector of the line segment of the position P2 of connection second protuberance 61b and the position P3 of the 3rd protuberance 61c, but this not necessarily.

Fig. 8 is the sectional view of the framework 50 that the variation 1 of embodiment relates to.

As shown in Figure 8, when first jiao of θ 1 is different with second jiao of θ 2, the first protuberance 61a is not on the perpendicular bisector of line segment connecting P2 and P3.

Even but in this situation, first jiao of θ's 1 and second jiao of θ 2 is respective, as long as more than 120 ° and be less than 180 ° just passable.Thus, as the explanation in Fig. 7, the mutual bed knife connecting first cylindrical shell 60 in the position P1 of the first protuberance 61a and the direction (Y direction) of center P0 and the second cylindrical shell 70 is relatively large.Its result, the first cylindrical shell 60 is loosening suppressed relative to the second cylindrical shell 70.

(variation 2)

At described embodiment, the protuberance of the first cylindrical shell 60 and interactional more than three of the second cylindrical shell 70 is configured in the inner peripheral surface 60a of the first cylindrical shell 60.But the protuberance of more than three can be configured in the outer peripheral face 70a of the second cylindrical shell 70.

Fig. 9 is the sectional view of the framework 50 that the variation 2 of embodiment relates to.

As shown in Figure 9, the framework 50 that this variation relates to, at the outer peripheral face 70a of the second cylindrical shell 70 of inner side, is configured with the first protuberance 71a, the second protuberance 71b and the 3rd protuberance 71c.

In addition, the position P1 of the first protuberance 71a, the position P2 of the second protuberance 71b, and the position P3 of the 3rd protuberance 61c, meet following condition.

Namely, at the center P0 of the circle (circle formed by outer peripheral face 70a in present embodiment) of connection P1, P2 and P3, (a) first protuberance 71a position P1 and angle i.e. first jiao of θ 1 of being formed of the position P2 of the second protuberance 71b, and (b) first protuberance 71a position P1 and angle i.e. second jiao of θ 2 of being formed of the position P3 of the 3rd protuberance 71c be more than 120 ° respectively and be less than 180 °.

Thus, as the explanation carried out with Fig. 7, the first cylindrical shell 60 on the position P1 of connection first protuberance 61a and the direction (Y direction) of center P0 and the mutual bed knife of the second cylindrical shell 70 relatively large.Its result, the first cylindrical shell 60 is loosening suppressed relative to the second cylindrical shell 70.

In addition, as this variation, when the outer peripheral face 70a of the second cylindrical shell 70 is configured with the protuberance of more than three, any one of these protuberances, abuts with the anti-delinking part 64 of the first cylindrical shell 60, thus can prevent the second cylindrical shell 70 from deviating from from the first cylindrical shell 60.

In addition, at the inner peripheral surface 60a of the first cylindrical shell 60, more than one projection is set, to make this projection abut in any one with the protuberance of more than three of circumference, thus this more than one projection, play the effect that suppression second cylindrical shell 70 rotates relative to the first cylindrical shell 60.

In addition, such as, one in three protuberances that framework 50 has, a side of the first cylindrical shell 60 and the second cylindrical shell 70 is configured in, remaining two the opposing party that can be configured in the first cylindrical shell 60 and the second cylindrical shell 70.

(variation 3)

At described embodiment, the cross section that the axis of three protuberances (61a ~ 61c) that framework 50 has is orthogonal is triangle.But the respective cross sectional shape of three protuberances (61a ~ 61c) that framework 50 has is not limited only to triangle.

Figure 10 A is the first figure of the cross sectional shape representing the protuberance that the variation 3 of embodiment relates to.Figure 10 B is the second figure of the cross sectional shape representing the protuberance that the variation 3 of embodiment relates to.In addition, in Figure 10 A and Figure 10 B, as the representative of three protuberances (61a ~ 61c), describe the example of the cross sectional shape of two the first protuberance 61a, but other protuberances (61b, 61c), also can adopt Figure 10 A and the cross sectional shape shown in Figure 10 B.

As shown in Figure 10 A, the first end of the first protuberance 61a can be formed as plane.In that case, the contact area that the first protuberance 61a such as can be made to contact with the outer peripheral face 70a of the second cylindrical shell 70 increases, thus the frictional force that the outer peripheral face 70a of the first protuberance 61a and the second cylindrical shell 70 is rubbed increases.In other words the first cylindrical shell 60 and the mutual bed knife of the second cylindrical shell 70 can be made to improve.

As shown in Figure 10 B, the first end of the first protuberance 61a can be formed as curved surface.Specifically, the cross sectional shape of the first protuberance 61a also can be semicircle shape.In that case, the intensity of the first protuberance 61a such as can be made to improve, thus the first protuberance 61a contacts with the outer peripheral face 70a of the second cylindrical shell 70, thus the distortion of the first protuberance 61a can be suppressed or break.Its result, can improve the stability of the first cylindrical shell 60 relative to the position of the radial direction of the second cylindrical shell 70.

In addition, the example of the cross sectional shape of these first protuberances 61a, also can be applicable to three protuberances (71a ~ 71b) that the outer peripheral face 70a at the second cylindrical shell 70 shown in Fig. 9 configures.

(variation 4)

At described embodiment, the group that three protuberances (61a ~ 61c) that framework 50 has form is one.But the group that three protuberances (61a ~ 61c) that framework 50 has form also can be multiple.

Figure 11 is the oblique view of the example of the allocation position of the group that three protuberances (61a ~ 61c) of the variation 4 representing embodiment form.

In addition, in fig. 11, with can the mode of the position of each of group of visual confirmation three protuberances (61a ~ 61c), the first cylindrical shell 60 be illustrated conceptually with dotted line.In addition, the diagram of the second cylindrical shell 70 is eliminated.

In framework 50, first protuberance 61a, the second protuberance 61b of this variation, the group of the 3rd protuberance 61c composition, be configured with multiple discretely in axis.

Thus, with three protuberances (61a ~ 61c) axially identical in longilineal situation, can reduce by with radial parallel axle centered by, the first cylindrical shell 60 is relative to the possibility of the small rotation (loosening) of the second cylindrical shell 70.

In addition, the contact area of the first cylindrical shell 60 and the second cylindrical shell 70 can be made relatively little, the mutual bed knife of the first cylindrical shell 60 and the second cylindrical shell 70 can be suppressed too much.In other words, can suppress by with radial parallel axle centered by loosen, easily can carry out again the flexible of framework 50.

(supplementing of embodiment)

At described embodiment, framework 50, have two cylindrical shells (first cylindrical shell 60 and the second cylindrical shell 70), but framework 50 can have the cylindrical shell of more than three.In other words, framework 50 has the cylindrical shell of more than three, such as, stretch according to flexible (telescopic) structure.

Even if when framework 50 has the cylindrical shell of more than three, two cylindrical shells mutually abutted, such as, can adopt by above-mentioned three protuberances (61a ~ 61c) mutually at the structure of radial direction pushing.Thereby, it is possible to realize framework 50 in bulb-shaped lamp 1 there is the cylindrical shell of more than three, can length be adjusted, and the bulb-shaped lamp 1 that structural stability is high.

In addition, at described embodiment, be configured with light emitting module 10 at the first cylindrical shell 60, be configured with lamp holder 90 at the second cylindrical shell 70 being inserted into the first cylindrical shell 60.But, lamp holder 90 can be configured at the first cylindrical shell 60, configure light emitting module 10 at the second cylindrical shell 70 being inserted into the first cylindrical shell 60.

In other words, at the second cylindrical shell 70 of axially relatively movement and side's configuration light emitting module 10 of the first cylindrical shell 60, the opposing party configures lamp holder 90, thus can change the distance between lamp holder 90 and light emitting module 10.

In addition, light emitting module 10, does not need to be directly installed in framework 50.Such as, light emitting module 10 can be fixed on the base plate or pillar etc. that are fixed on framework 50 directly or indirectly.In addition, such as, light emitting module 10 can be fixed on cover 80.

In addition, can not be individuality separately at the first cylindrical shell 60 and the cover 80 of light emitting module 10 configuration, such as, pass through the integrally formed of resin, the first cylindrical shell 60 integrally possessed by cover 80 can be made.

In addition, the height of the radial direction of three protuberances (61a ~ 61c) of embodiment and shape not necessarily identical.The height of the radial direction of three protuberances (61a ~ 61c) or shape can be mutually different.

In addition, the cover 80 that bulb-shaped lamp 1 possesses and the shape of optics 81 and size are not particularly limited, and in addition, bulb-shaped lamp 1 need not possess cover 80 and optics 81.

In addition, in above-mentioned explanation, first jiao of θ 1 and second jiao of θ 2 (such as with reference to figure 4A) are more than 120 ° respectively, and are less than 180 °, it is further preferred that first jiao of θ 1 and second jiao of θ 2 is larger than 120 ° respectively, and are less than 180 °.

In addition, the first cylindrical shell 60 does not need to rotate centered by axle relative to the second cylindrical shell 70.Such as, also can be a part for the second cylindrical shell 70 and any one in three protuberances (61a ~ 61c) configured at the inner peripheral surface 60a of the first cylindrical shell 60, often abut in circumference, thus in fact the first cylindrical shell 60 can not carry out relative to the rotation of the second cylindrical shell 70.

In addition, in present embodiment, the circle by P1, P2, P3 is set to the circle formed by inner peripheral surface 60a.This is because be defined as upper/lower positions by the position of three protuberances (61a ~ 61c), cross section is the protuberance (such as with reference to figure 7) of isosceles triangle, the middle position of the circumference of inner peripheral surface 60a.In other words, P2, P3 are respectively provided the summit (part abutted with the outer peripheral face 70a of the second cylindrical shell 70 into such as three protuberances (61a ~ 61c), with reference to figure 6) when, by P1, P2, the circle of P3, specifies as the circle by these summits.In other words, in that case, utilize the circle on the summit by three protuberances (61a ~ 61c), determine first jiao of θ 1 and second jiao of θ 2 (with reference to figure 8).

In addition, at described embodiment, light-emitting component 12 is SMD type LED element, but is not limited only to this.Such as, bulb-shaped lamp 1 can adopt bare chip to be directly installed on the light emitting module of COB (ChipOnBoard: the chip on board) type on substrate.

In that case, such as configure by multiple LED chip in the lump or carry out individually the seal member that seals, and comprise the seal member of the material for transformation of wave length of above-mentioned yellow fluorophor etc., thus make the wavelength convert from the light of multiple LED chip be the wavelength specified.

In addition, at described embodiment, as light-emitting component for LED, but, the solid-state light emitting element of the semiconductor light-emitting elements of semiconductor laser etc., organic electroluminescent (ElectroLuminescence) or inorganic EL etc. can also be adopted.

In addition, implement the various distortion that those skilled in the art can expect and the embodiment obtained for above-mentioned embodiment and variation, and in the scope not departing from purport of the present utility model, the embodiment that the inscape of above-mentioned embodiment and variation and function are combined and realize all is included in the utility model.

Claims (5)

1. an illumination light source, is characterized in that,

Described illumination light source possesses light emitting module and framework,

Described framework has:

First cylindrical shell, cylindrical shape;

Second cylindrical shell, cylindrical shape, is configured to be inserted into described first cylindrical shell, can moves axially relative to described first cylindrical shell; And

First protuberance, the second protuberance and the 3rd protuberance, be configured in any one party of the inner peripheral surface of described first cylindrical shell and the outer peripheral face of described second cylindrical shell respectively, in described axial same position, abuts with the opposing party of described inner peripheral surface and described outer peripheral face,

Connecting the center of circle of position of the position of described first protuberance, the position of described second protuberance and described 3rd protuberance, a angle that the position of () described first protuberance and the position of described second protuberance are formed i.e. first jiao of that is second jiao, angle formed with the position of (b) described first protuberance and the position of described 3rd protuberance, is respectively more than 120 ° and is less than 180 °.

2. illumination light source as claimed in claim 1, is characterized in that,

Described first protuberance, is configured on the perpendicular bisector of the line segment of the position of position and described 3rd protuberance connecting described second protuberance.

3. illumination light source as claimed in claim 1 or 2, is characterized in that,

Described first protuberance, described second protuberance and described 3rd protuberance, respectively described axially in elongated shape.

4. illumination light source as claimed in claim 1 or 2, is characterized in that,

Described first protuberance, described second protuberance and described 3rd protuberance composition group, described be axially configured with discretely multiple.

5. illumination light source as claimed in claim 1 or 2, is characterized in that,

Described illumination light source also possesses:

Drive circuit, is incorporated in described framework, for making described light emitting module luminous; And

Lamp holder, be configured in the end of exposing from described first cylindrical shell of described second cylindrical shell, the electric power accepted from outside is supplied to described drive circuit by described lamp holder.