JP6415088B2 - Housing and bulb for lamp, lamp, and manufacturing method of housing and bulb for lamp - Google Patents

Description

  The present invention relates to a lamp housing using a solid light-emitting element such as an LED as a light source, a bulb structure attached to the housing, a lamp including the housing and the bulb, and a lamp housing and a method for manufacturing the bulb.

  As products that replace incandescent bulbs and bulb-type fluorescent lamps, bulb-type LED lamps using solid-state light-emitting elements such as LEDs as light sources have been proposed (see, for example, Patent Documents 1 to 3).

  Patent Document 1 has a light emitting module having a light emitting part in which a plurality of chip-like semiconductor light emitting elements are mounted on one surface of a substrate, a base part, and a plurality of heat radiation fins provided around the base part. A base body in which the light emitting module is brought into contact with one end side of the base body so as to allow heat conduction, a glove provided on one end side of the base body so as to cover the light emitting module, a base provided on the other end side of the base body, and a base body and a base A light bulb shaped lamp having a lighting circuit housed between the two is disclosed.

  Patent Document 2 includes an LED light emitting unit that emits light around a central axis extending in the first direction, a support member that supports the LED light emitting unit, and a globe that covers the LED light emitting unit. The support member includes a drop-off prevention portion, and the drop-off prevention portion overlaps a part of the base end portion in a radial direction perpendicular to the central axis and is first. An LED bulb having a portion located on the direction side is disclosed.

  In Patent Document 3, a heat sink that dissipates heat from a light source, a cover that is attached to the heat sink and covers the light source, and a force caused by a difference in thermal expansion coefficient between the cover and the heat sink is provided. An illuminating device including a mitigating member for mitigating the above is disclosed.

JP 2011-070972 A JP 2013-225466 A JP 2012-018885 A

  However, although the light bulb shaped lamp disclosed in Patent Document 1 fixes the globe and the base body with an adhesive, it cannot be sufficiently fixed due to a shortage of the adhesive or for a long time. If the adhesive deteriorates due to the use of a light bulb shaped lamp, the glove may fall off the base.

  In the LED bulb disclosed in Patent Document 2, the drop-off prevention part is formed by bending the drop-off prevention part located outside the globe after the globe is placed on the pedestal. There is a risk that the glove as a part may be damaged during the bending operation. In addition, when the function of preventing the drop-off is insufficient due to variations in the bending work, the glove may drop off. And the dispersion | variation in a bending operation | work is also a subject on an external appearance.

  The lighting device disclosed in Patent Document 3 needs to include a relaxation member between the cover and the heat sink in order to reduce the force caused by the difference in thermal expansion coefficient between the cover and the heat sink. There are problems such as complicated and deteriorated assembling property and increased manufacturing cost.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and its object is to provide a simple relative construction and assembling procedure that requires little additional cost, while the lamp housing and the bulb are in a predetermined relative position. To provide a housing for a lamp and a bulb, and a method for manufacturing the housing for the lamp and the bulb, which can be securely attached at all times and prevent the bulb attached to the housing from falling off the housing. .

The lamp housing and bulb according to the first aspect of the present invention are:
A housing for arranging a light source part inside a cylindrical peripheral wall part, and a housing in which a fitting recess is formed at a peripheral edge part on one end side of the peripheral wall part;
A valve in which an opening is formed in a part of a hollow outer portion, and a cylindrical fitting convex portion is formed in a peripheral portion of the opening;
A lamp housing and bulb having a fitting structure for fitting
The fitting structure is
A plurality of engagement structures formed with a first width in the fitting recess and the fitting protrusion;
An insertion structure formed with a second width larger than the first width in the fitting concave portion and the fitting convex portion.

The lamp housing and bulb according to the second aspect of the present invention are:
A housing for disposing a light source part inside a cylindrical peripheral wall part, wherein the light source part is formed with a first width on an outer inner peripheral surface part of a fitting recess formed in a peripheral part on one end side of the peripheral wall part. A plurality of engagement grooves, an insertion groove formed with a second width greater than the first width, and an engagement groove formed on an inner inner peripheral surface portion of the fitting recess facing the outer inner peripheral surface portion. A housing having an engaging claw formed with a third width smaller than the first width,
An opening is formed in a part of the hollow outer portion, and the inner peripheral surface portion of the cylindrical fitting convex portion formed at the peripheral portion of the opening is formed into a shape that engages with the engaging claw. An engagement projection having an engagement hole, and a valve having an insertion projection formed on the outer peripheral surface portion of the fitting convex portion with a width larger than the first width and less than or equal to the second width,
When the valve is attached to the housing, the insertion groove and the insertion protrusion are arranged to face each other, and the engagement groove and the engagement claw are arranged to engage with each other. A housing and the valve are fitted together.

A lamp housing and a bulb according to an embodiment of the present invention include:
4 housings having a cylindrical peripheral wall portion at least partially, and a light source portion arranged on the inner side of the peripheral wall portion, arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. A housing comprising: an engaging groove; and two insertion grooves disposed at symmetrical positions with respect to the center of the peripheral edge on the one end side;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. The four engaging protrusions arranged at intervals and the symmetrical positions with respect to the center of the opening edge, and the arrangement relationship with respect to the four engaging protrusions is relative to the four engaging grooves. A valve comprising two insertion protrusions arranged at positions corresponding to the arrangement relationship of the two insertion grooves,
A width of at least one of the two insertion protrusions is larger than a width of the engagement groove.

A lamp housing and bulb according to another embodiment of the present invention include:
4 housings having a cylindrical peripheral wall portion at least partially, and a light source portion arranged on the inner side of the peripheral wall portion, arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. A housing including two engaging grooves disposed at a position other than a symmetrical position with respect to the center of the peripheral edge on the one end side;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. The four engaging protrusions arranged at intervals and the position other than the symmetrical position with respect to the center of the opening edge, and arranged at a position corresponding to the arrangement relationship of the two insertion grooves. A valve having two insertion protrusions;
It is comprised from these, It is characterized by the above-mentioned.

A lamp according to an embodiment of the present invention includes:
A light source unit;
4 is a housing for disposing at least part of a cylindrical peripheral wall portion and arranging the light source portion on the inner side of the peripheral wall portion, and arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. A housing comprising a plurality of engagement grooves and two insertion grooves disposed at symmetrical positions with respect to the center of the peripheral edge on the one end side;
A light source attachment part formed in the housing and to which the light source part is attached;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. The four engagement protrusions arranged at intervals and the symmetrical positions with respect to the center of the opening edge, and the arrangement relationship with respect to the four engagement protrusions is 2 with respect to the four engagement grooves. A valve comprising two insertion protrusions disposed at positions corresponding to the arrangement relationship of the plurality of insertion grooves;
A base electrically connected to the light source unit and exposed to the outside;
With
A width of at least one of the two insertion protrusions is larger than a width of the engagement groove.

A lamp according to another embodiment of the present invention includes:
A light source unit;
4 is a housing for disposing at least part of a cylindrical peripheral wall portion and arranging the light source portion on the inner side of the peripheral wall portion, and arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. A housing comprising a plurality of engaging grooves and two insertion grooves disposed at a position other than a position symmetrical with respect to the center of the peripheral edge on the one end side;
A light source attachment part formed in the housing and to which the light source part is attached;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. The four engaging protrusions arranged at intervals and the position other than the symmetrical position with respect to the center of the opening edge, and arranged at a position corresponding to the arrangement relationship of the two insertion grooves. A valve having two insertion protrusions;
A base electrically connected to the light source unit and exposed to the outside;
It is characterized by comprising.

  In the lamp housing and the bulb according to each embodiment of the present invention, and the lamp, the engagement groove is a groove for latching the housing and the bulb, and the engagement protrusion is the housing and the valve. It is a projection for latching with the valve, the insertion groove is a groove for positioning the housing and the valve, and the insertion projection is a projection for positioning the housing and the valve. .

  The thermal expansion coefficient of the material forming the housing and the thermal expansion coefficient of the material forming the valve may be the same.

  The housing and the valve may be made of a resin material.

  The housing may be made of an insulating material.

  In the lamp according to each of the embodiments of the present invention, the light source mounting portion may be a heat sink.

  In the lamp according to each embodiment of the present invention, the light source unit may be attached to the light source attachment unit via a heat conductive sheet.

  The light source may be a solid light emitting element. The solid-state light emitting element may be any one of an LED, an organic EL, and a laser diode.

  It is preferable to further include a lighting device including a power conversion circuit electrically connected to the light source unit and the base.

According to the lamp housing and the bulb manufacturing method according to the embodiment of the present invention,
4 housings having a cylindrical peripheral wall portion at least partially, and a light source portion disposed inside the peripheral wall portion, arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. Forming a housing comprising: an engaging groove; and two insertion grooves disposed at symmetrical positions with respect to the center of the peripheral edge on the one end side;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. The four engaging protrusions arranged at intervals and the symmetrical positions with respect to the center of the opening edge, and the arrangement relationship with respect to the four engaging protrusions is relative to the four engaging grooves. Forming a valve comprising two insertion protrusions arranged at positions corresponding to the arrangement relationship of the two insertion grooves;
Including
The two insertion protrusions and the four engagement grooves are formed so that the width of the insertion protrusion of at least one of the two insertion protrusions is larger than the width of the engagement groove. It is characterized by that.

According to a lamp housing and a bulb manufacturing method according to another embodiment of the present invention,
4 housings having a cylindrical peripheral wall portion at least partially, and a light source portion arranged on the inner side of the peripheral wall portion, arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. Forming a housing comprising: an engaging groove; and two insertion grooves disposed at a position other than a position symmetrical with respect to the center of the peripheral edge on the one end side;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. The four engaging protrusions arranged at intervals and the position other than the symmetrical position with respect to the center of the opening edge, and arranged at a position corresponding to the arrangement relationship of the two insertion grooves. Forming a valve comprising two insertion protrusions;
It is characterized by including.

  In the lamp housing and the bulb manufacturing method according to each of the embodiments of the present invention, the thermal expansion coefficient of the housing forming material and the thermal expansion coefficient of the bulb forming material may be the same. .

  The housing and the valve may be formed of a resin material.

  Furthermore, the housing may be formed of an insulating material.

  According to the lamp housing and the bulb, the lamp, and the manufacturing method thereof according to the present invention, the lamp housing and the bulb are fixed to each other with a simple configuration and an assembling procedure with little additional cost. Provided are a housing and a bulb for a lamp, and a method for manufacturing the housing and the bulb for the lamp, which can always be securely attached in a relative positional relationship and prevent the bulb attached to the housing from falling off the housing. can do.

It is a disassembled perspective view which shows the whole structure of the lamp | ramp which concerns on one Embodiment of this invention. 1 is a perspective view showing a structure of a bulb for a lamp according to an embodiment of the present invention. It is a top view which shows the structure of the valve | bulb for lamps and the housing which concerns on one Embodiment of this invention.

  Embodiments of a lamp housing and bulb, a lamp, and a lamp housing and bulb manufacturing method according to the present invention will be described below in detail with reference to the drawings. In the description of the embodiment, directions or positions such as “top”, “bottom”, “left”, “right”, “front”, “back”, “front”, “back” are indicated. These notations are merely described as such for convenience of explanation, and do not limit the arrangement, orientation, etc., of devices, instruments, parts, and the like.

  A lamp such as an LED lamp generally includes a housing, a light source unit including a solid light emitting element such as an LED disposed in the housing, a translucent bulb that is fitted in the housing and covers the light source unit, and a light source unit. And a base attached to the housing so as to be exposed to the outside.

  FIG. 1 is an exploded perspective view showing an overall configuration of a lamp according to an embodiment of the present invention.

  An LED lamp 1 shown in FIG. 1 includes an external housing 50 in which a light source mounting portion 4 is disposed, a light source portion 2 mounted on the light source mounting portion 4, and a light source portion 2 fitted into the external housing 50. A bulb 10 for covering, a lighting device 6 including a power conversion circuit electrically connected to the base 8 and the light source unit 2; an internal housing 7 that houses the lighting device 6 and is housed and attached in an external housing 50; A base 8 is provided which is electrically connected to the lighting device 6 and attached to the inner housing 7 so as to be exposed to the outside. The light source mounting portion 4 may be formed and arranged integrally with the outer housing 50.

  The light source unit 2 includes an LED 20 that is a solid light emitting element as a light emitting element, and an LED substrate 21 on which the LED 20 is mounted and placed on the light source mounting unit 4. The light source part 2 may be comprised using organic EL, a laser diode, etc. as a light emitting element.

  For example, the bulb 10 is formed using a resin material having translucency, such as plastic and polycarbonate. The bulb 10 may be formed to have light diffusibility and color rendering properties. In FIG. 1, the outer portion 12 of the valve 10 has a hemispherical outer shape, but the outer shape of the outer portion 12 is not limited to this.

  In order to ensure safety, the outer housing 50 and the inner housing 7 are formed of a resin material having electrical insulation as an example. As an example of the structure, the inner housing 7 is accommodated in the light source mounting portion 4 disposed inside the outer housing 50, and is fixed to the light source mounting portion 4 using a fixing member such as a screw 4a, for example. .

  The lighting device 6 converts power supplied from an external power source via the base 8 into lighting power for lighting the LED 20, and supplies the converted lighting power to the LED 20 of the light source unit 2.

  The base 8 is electrically connected to an external power source and the lighting device 6 accommodated in the internal housing 7, and supplies power to the lighting device 6.

  The valve 10 is formed with positioning insertion protrusions 11a and 11x and a latching engagement protrusion 12a. Corresponding to these, the outer housing 50 is formed with positioning insertion grooves 11b and 11y and a latching engagement groove 12b. These will be described later in detail with reference to FIGS.

  The LED 20 generates heat when continuously lit, and the junction temperature is approximately 100 ° C. or higher. The light source mounting portion 4 on which the LED substrate 21 is mounted and mounted is formed by injection molding a material having excellent thermal conductivity, for example, a metal material, in order to efficiently dissipate the heat generated from the LED 20. It is good to have the function as.

  The LED substrate 21 is attached and fixed to the light source attachment portion 4 using a fixing member such as a screw 2a, for example. Note that the LED substrate 21 may be attached to the light source attachment portion 4 by using another method such as an adhesive fixing using an adhesive member instead of the screw 2a.

  In order to improve the heat dissipation efficiency, the LED substrate 21 is preferably mounted and mounted on the light source mounting portion 4 via the heat conductive sheet 3 which is an arbitrary component. The heat conductive sheet 3 may be formed using a material having excellent light reflection efficiency in order to efficiently emit light emitted from the LED 20 to the outside of the LED lamp 1.

  Since the lamp such as the LED lamp 1 is normally used while being repeatedly turned on and off, the fixing strength between the housing 50 and the external valve 10 in the assembled state is maintained even under repeated heating and cooling cycles by turning on and off. In order to achieve this, the thermal expansion coefficients of the forming materials of the valve 10 and the outer housing 50 are preferably matched. Actually, the thermal expansion coefficients of the respective forming materials of the valve 10 and the outer housing 50 may be substantially the same even if they are not completely the same.

  FIG. 2 is a perspective view showing the structure of a lamp bulb according to an embodiment of the present invention.

  As shown in FIG. 2, as an example, the valve 10 is hollow and the outer shell 12 has a hemispherical shape.

  A fitting convex portion 11 for fitting with the outer housing 50 is formed on a peripheral edge portion 14 (hereinafter also referred to as an opening edge portion 14) of the opening portion 13 of the valve 10, and the outer periphery of the fitting convex portion 11. Insertion protrusions 11 a and 11 x for positioning with respect to the outer housing 50 and an engagement protrusion 12 a for latching with respect to the outer housing 50 are formed on the surface portion.

  The engagement protrusion 12a shown as an example is defined by a frame portion 12c having a side edge defined by two notches 12e formed at a predetermined interval on the fitting convex portion 11 and having an opening 12d.

  The number of engagement protrusions 12a formed on the fitting projection 11 is not limited to four, and a necessary number is formed on the fitting projection 11 according to the specifications of the LED lamp 1. .

  Alternatively, the shape of the opening 12 d is not limited to the through hole, and may be any shape that allows the valve 10 to latch the external housing 50. For example, it is good also as a hollow shape where the inner peripheral surface part of the fitting convex part 11 was hollowed in the depth required for latching.

  FIG. 3 is a plan view showing the structure of the lamp bulb and the housing according to the embodiment of the present invention. Specifically, FIG. 3 (a) is a lower side in the state shown in FIG. 1 or FIG. 3B is a plan view of the bulb 10 as viewed from above, and FIG. 3B is a plan view of the external housing 50 in which the light source mounting portion 4 is formed as viewed from above in the state shown in FIG.

  As an example, the valve 10 shown in FIG. 3 (a) is hollow and the outer shell 12 has a hemispherical shape, and is provided with four latches arranged at equal intervals on a circular opening edge 14. It has an engaging protrusion 12a. That is, the two adjacent engaging projections 12 a form a central angle of 90 degrees with respect to the center of the circular opening edge portion 14. An example of a specific shape of the engaging protrusion 12a is as described above with reference to FIG.

  Further, the valve 10 has two insertion protrusions 11x and 11a for positioning disposed at symmetrical positions with respect to the center of the circular opening edge portion 14. That is, the two insertion projections 11x and 11a form a central angle of 180 degrees with respect to the center of the circular opening edge portion 14.

  In the example shown in FIG. 3A, the insertion protrusion 11 x or 11 a and the engaging protrusion 12 a adjacent to the insertion protrusion 11 x form a central angle of 45 degrees with respect to the center of the circular opening edge portion 14. However, the central angle is not limited to the combination of 45 degrees and 45 degrees, and may be an arbitrary combination in which the sum is 90 degrees, for example, a combination of 30 degrees and 60 degrees.

  On the other hand, as shown in FIG. 1, the external housing 50 as an example has a cylindrical peripheral wall portion 50a that is narrowed down, and the light source mounting portion 4 is located on the inner side of the peripheral wall portion 50a from above. Has been placed. Further, as shown in FIG. 3B, a circular peripheral edge 50b corresponding to the circular opening edge 14 of the bulb 10 is formed at one end on the upper side of the peripheral wall 50a.

  The circular peripheral edge 50b of the outer housing 50 is formed with a fitting recess 5 for fitting with the fitting protrusion 11 of the valve 10, as shown in FIGS. 1 and 3B. Yes.

  The fitting recess 5 as an example includes an outer inner peripheral surface portion 5a and an inner inner surface formed continuously in a circular shape on the peripheral edge portion 50b of the outer housing 50 in order to engage with the fitting convex portion 11 of the valve 10. It is a groove comprising a peripheral surface portion 5b and a bottom portion 5c.

  Insertion grooves 11y and 11b for positioning the valve 10 in the rotational direction and an engagement groove 12b for latching the valve 10 are formed on the outer peripheral surface 5a of the fitting recess 5. An engagement claw 12f for engaging the valve 10 is formed on the inner inner peripheral surface portion 5b of the fitting recess 5 so as to face the engagement groove 12b.

  Here, the latching of the valve 10 will be described.

  The valve 10 is formed by using a resin material as an example, and the frame portion 12c of the engagement protrusion 12a formed on the fitting convex portion 11 of the valve 10 has flexibility.

  When the fitting convex portion 11 of the valve 10 is inserted into the fitting concave portion 5 of the outer housing 50, the frame portion 12 c formed on the engaging projection 12 a of the fitting convex portion 11 is formed on the inner inner periphery of the fitting concave portion 5. The engaging claws 12f formed on the surface portion 5b are pushed and spread from the inside to the outside of the frame portion 12c.

  At this time, since the frame portion 12c is located in the region of the engagement groove 12b formed on the outer inner peripheral surface portion 5a of the fitting recess 5 so as to face the frame portion 12c, the outer inner peripheral surface portion 5a of the fitting recess 5 is provided. Does not interfere with. For this reason, the fitting convex part 11 of the valve 10 can be smoothly inserted into the fitting concave part 5 of the external housing 50.

  When the fitting projection 11 of the valve 10 is further inserted into the fitting recess 5 of the outer housing 50, the opening 12 d formed in the engagement projection 12 a of the fitting projection 11 is inserted into the opening 12 d of the fitting projection 5. The engagement claw 12 f formed on the inner inner peripheral surface portion 5 b is inserted, and the valve 10 is latched to the housing 50.

  The height of the engaging claw 12f is such that the valve 10 in which the fitting convex portion 11 of the valve 10 is further inserted into the fitting concave portion 5 of the external housing 50 and is latched to the housing 50 is the housing 50 It is determined so that the frame 12c is not damaged when the fitting projection 11 of the valve 10 is inserted into the fitting recess 5 of the external housing 50. That is, the height dimension of the engagement claw 12f is a dimension determined in accordance with the shapes and dimensions of the fitting concave portion 5, the fitting convex portion 11, and the engaging protrusion 12a.

  The depth dimension of the engaging groove 12b is determined so that the frame portion 12c is not damaged when the fitting convex portion 11 of the valve 10 is inserted into the fitting concave portion 5 of the outer housing 50. That is, the depth dimension of the engaging groove 12b is a dimension determined in accordance with the shape and size of the fitting concave portion 5, the fitting convex portion 11, the engaging protrusion 12a, and the engaging claw 12f.

  As an example, the outer housing 50 shown in FIG. 3B has four engaging grooves 12b for latching arranged at equal intervals on a circular peripheral edge. Accordingly, the two engaging grooves 12b adjacent to each other form a central angle of 90 degrees with respect to the center of the circular peripheral edge.

  Further, the outer housing 50 has two insertion grooves 11y and 11b for positioning disposed at symmetrical positions with respect to the center of the circular peripheral edge. Therefore, the two insertion grooves 11y and 11b form a central angle of 180 degrees with respect to the center of the circular peripheral edge.

  In the example shown in FIG. 3B, the insertion groove 11y or 11b and the engaging groove 12b adjacent thereto form a central angle of 45 degrees with respect to the center of the circular peripheral edge. However, the central angle is not limited to the combination of 45 degrees and 45 degrees, and may be an arbitrary combination in which the sum is 90 degrees, such as a combination of 30 degrees and 60 degrees. It is necessary to correspond to the arrangement relationship between the protrusion 11x or 11a and the engaging protrusion 12a adjacent thereto.

  That is, the arrangement relationship of the two insertion grooves 11 y and 11 b with respect to the four engagement grooves 12 b in the outer housing 50 is the arrangement relationship of the two insertion protrusions 11 x and 11 a with respect to the four engagement protrusions 12 a in the valve 10. It corresponds.

  Further, as is clear from FIGS. 3A and 3B, the arrangement of the four engagement protrusions 12a of the valve 10 and the arrangement of the four engagement grooves 12b of the outer housing 50 correspond to each other. Therefore, the arrangement of the two insertion protrusions 11x and 11a of the valve 10 and the arrangement of the two insertion grooves 11y and 11b of the outer housing 50 correspond to each other.

  Therefore, the width W4 of one insertion protrusion 11x of the valve 10 and the width W5 of one insertion groove 11y of the outer housing 50 correspond to each other, and the width W1 of the other insertion protrusion 11a of the valve 10 and the outer housing 50 The width W3 of the other insertion groove 11b corresponds to each other. Since one insertion protrusion 11x of the valve 10 is to be inserted into one insertion groove 11y of the outer housing 50, the width W4 of the insertion protrusion 11x is smaller than the width W5 of the insertion groove 11y.

  The width W2 of the four engagement grooves 12b of the outer housing 50 and the width W6 of the four engagement protrusions 12a of the valve 10 correspond to each other. Accordingly, the width W2 of the four engagement grooves 12b of the outer housing 50 is a width that allows the four engagement protrusions 12a of the valve 10 to be hooked. Further, the width W7 of the engagement claw 12f formed on the inner inner peripheral surface portion 5b of the fitting recess 5 of the outer housing 50 is a width that can be engaged with the opening 12d of the engagement protrusion 12a of the valve 10. .

  However, in the housing 50 and the external valve 10 according to the embodiment of the present invention, the width W4 of one insertion protrusion 11x of the valve 10 is larger than the width W2 of the engagement groove 12b of the external housing 50. One insertion protrusion 11x of the valve 10 and an engagement groove 12b of the outer housing 50 are formed.

  The outer housing 50 and the valve 10 are opposed to each other, and one insertion projection 11x of the valve 10 is fitted into one insertion groove 11y of the outer housing 50, and the other insertion projection 11a of the valve 10 is fitted to the outer housing 50. When fitted into the other insertion groove 11 b, the four engagement protrusions 12 a of the valve 10 are hooked on the four engagement grooves 12 b of the outer housing 50, and the valve 10 is fitted into the outer housing 50. Fixed in state.

  That is, when the outer housing 50 and the valve 10 are opposed to each other so as to have a correct predetermined relative positional relationship, the outer housing 50 and the valve 10 are fitted and fixed to each other without any problem. Is done.

  However, in the lamp housing and the bulb according to the embodiment of the present invention, the outer housing 50 and the bulb 10 are rotated 45 degrees clockwise or counterclockwise with respect to a predetermined relative positional relationship. When they are opposed to each other in an incorrect relative positional relationship rotated by another angle, the outer housing 50 and the valve 10 are not fitted and fixed to each other.

  The reason is that the engagement of one insertion protrusion 11x of the valve 10 and the outer housing 50 is such that the width W4 of one insertion protrusion 11x of the valve 10 is larger than the width W2 of the engagement groove 12b of the outer housing 50. This is because the groove 12b is formed.

  When the external housing 50 and the valve 10 are forced to be fitted in an incorrect relative positional relationship, an excessive external force is applied. Will be identified.

  Of course, other erroneous relative positional relationships other than the erroneous relative positional relationship in which the outer housing 50 and the valve 10 are rotated 45 degrees clockwise or counterclockwise with respect to the predetermined relative positional relationship. Even when facing each other, the outer housing 50 and the valve 10 do not fit each other.

  Therefore, according to the lamp housing and bulb, the lamp, and the lamp housing and bulb manufacturing method according to the embodiment of the present invention, a simple configuration and assembly with little additional cost are required. A lamp housing and a bulb, which can be securely attached to the lamp housing and the bulb in a predetermined relative positional relationship while being a procedure, and prevent the bulb attached to the housing from falling off the housing. In addition, it is possible to provide a method for manufacturing a housing for a lamp and a bulb.

  In the structure of the bulb bulb and housing according to the embodiment of the present invention shown in FIG. 3, the width W4 of one insertion projection 11x of the two insertion projections of the bulb 10 is related to the external housing 50. Although formed so as to be larger than the width W2 of the joint groove 12b, the width of both of the two insertion protrusions of the valve 10 is formed to be larger than the width W2 of the engagement groove 12b of the outer housing 50. May be.

  As another embodiment of the lamp housing and the bulb according to the present invention, the two insertion protrusions 11x and 11a of the bulb 10 are arranged at symmetrical positions with respect to the center of the circular open peripheral edge of the bulb 10. Alternatively, there may be a configuration in which the circular opening edge 14 is disposed at a position other than the position that forms a central angle of 180 degrees with respect to the center of the circular opening edge portion 14. In that case, the two insertion grooves 11y and 11b of the outer housing 50 are not arranged at symmetrical positions with respect to the center of the circular peripheral edge of the outer housing 50, and are not arranged with respect to the center of the circular peripheral edge. It is located at a position other than the position forming the central angle of 180 degrees and corresponding to the two insertion protrusions 11x and 11a of the bulb 10.

  When the configuration of the other embodiment is adopted, the width of one or both of the two insertion protrusions of the valve 10 is made larger than the width W2 of the engagement groove 12b of the outer housing 50. It does not need to be formed, and the width of the two insertion protrusions of the valve 10 is arbitrary.

  Also in the lamp housing and the bulb, the lamp, and the manufacturing method thereof according to the other embodiment of the present invention, the external housing 50 and the bulb 10 are erroneously different from each other in a predetermined relative positional relationship. When facing each other in the target positional relationship, the outer housing 50 and the valve 10 do not fit each other.

  Therefore, the lamp housing and bulb, the lamp, and the lamp housing and bulb manufacturing method according to the other embodiments of the present invention have a simple configuration with little additional cost and The lamp housing and the bulb, which can be securely attached to the lamp housing and the bulb in a predetermined relative positional relationship while being an assembly procedure, and can be prevented from falling off the housing, and These manufacturing methods can be provided.

  In each of the above embodiments, the valve 10 is hollow and the outer shell 12 has a hemispherical shape, but the shape is not limited thereto. In each of the above embodiments, the outer housing 50 has a cylindrical shape with the lower side narrowed down, but is not limited to this shape.

  DESCRIPTION OF SYMBOLS 1 LED lamp, 2 Light source part, 2a Screw (for LED board attachment), 3 Thermal conductive sheet, 4 Light source attachment part (heat sink), 4a Screw (for internal housing attachment), 5 Fitting recessed part, 5a Outer inner peripheral surface part, 5b Inner inner peripheral surface part, 5c bottom part, 6 lighting device (power conversion circuit), 7 inner housing, 8 base, 10 valve (translucent), 11 fitting convex part, 11a insertion protrusion (for positioning, width: W1) 11x insertion protrusion (for positioning, width: W4), 11b insertion groove (for positioning, width: W3), 11y insertion groove (for positioning, width: W5), 12 outline, 12a engaging protrusion (for latching, Width: W6), 12b Engaging groove (for latching, width: W2), 12c Frame, 12d Opening (engaging protrusion), 12e Notch, 12f Engaging claw (latching) Width: W7), 13 openings (valve), 14 opening edge, 20 solid-state light-emitting element (LED), 21 LED substrates, 50 the outer housing, 50a peripheral wall, 50b periphery

Claims (13)

A housing for arranging a light source part inside a cylindrical peripheral wall part, and a housing in which a fitting recess is formed at a peripheral edge part on one end side of the peripheral wall part;
A valve in which an opening is formed in a part of a hollow outer portion, and a cylindrical fitting convex portion is formed in a peripheral portion of the opening;
A lamp housing and bulb having a fitting structure for fitting
The fitting structure is
A plurality of engagement structures formed with a first width in the fitting recess and the fitting protrusion;
A first insertion structure formed by the fitting recess and the fitting projection and the first width is larger than the second width,
A second insertion structure formed in the fitting recess and the fitting protrusion with a fourth width smaller than the first width;
And a lamp housing and bulb. A housing for disposing a light source part inside a cylindrical peripheral wall part, wherein the light source part is formed with a first width on an outer inner peripheral surface part of a fitting recess formed in a peripheral part on one end side of the peripheral wall part. A plurality of engagement grooves , a first insertion groove formed with a second width larger than the first width, a second insertion groove formed with a fourth width smaller than the first width , and A housing having an engaging claw formed on the inner inner peripheral surface portion facing the outer inner peripheral surface portion of the fitting recess and having a third width smaller than the first width facing the engaging groove; ,
An opening is formed in a part of the hollow outer portion, and the inner peripheral surface portion of the cylindrical fitting convex portion formed at the peripheral portion of the opening is formed into a shape that engages with the engaging claw. An engagement protrusion having an engagement hole, and a first insertion protrusion formed on the outer peripheral surface portion of the fitting convex portion with a width larger than the first width and less than or equal to the second width, and the fourth protrusion A valve having a second insertion protrusion formed with a width less than the width ;
With
When the valve is attached to the housing, the first insertion groove and the first insertion protrusion are opposed to each other, and the second insertion groove and the second insertion protrusion are opposed to each other. A lamp housing and a bulb in which the housing and the bulb are fitted by being arranged so that the engagement groove and the engagement protrusion are engaged with each other. 4 housings having a cylindrical peripheral wall portion at least partially, and a light source portion arranged on the inner side of the peripheral wall portion, arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. A housing comprising: an engaging groove; and two insertion grooves disposed at symmetrical positions with respect to the center of the peripheral edge on the one end side;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. The four engaging protrusions arranged at intervals and the symmetrical positions with respect to the center of the opening edge, and the arrangement relationship with respect to the four engaging protrusions is relative to the four engaging grooves. A valve comprising two insertion protrusions arranged at positions corresponding to the arrangement relationship of the two insertion grooves,
The width of the insertion groove of at least one of the two insertion grooves is smaller than the width of the engagement protrusion, and the width of the insertion protrusion of at least one of the two insertion protrusions is the engagement width. Housing and bulb for the lamp that are larger than the width of the groove. 4 housings having a cylindrical peripheral wall portion at least partially, and a light source portion arranged on the inner side of the peripheral wall portion, arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. A housing comprising two engaging grooves having different widths disposed at positions other than symmetrical positions with respect to the center of the peripheral edge on the one end side;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. Positions other than the four engagement protrusions arranged at intervals and the position symmetrical with respect to the center of the opening edge, and corresponding to the arrangement relationship of the two insertion grooves having different widths A bulb and a housing for a lamp, comprising: a bulb provided with two insertion protrusions of different widths corresponding to the different widths .   The engagement groove is a groove for latching the housing and the valve, the engagement projection is a projection for latching the housing and the valve, and the insertion groove is the housing and the valve. 5. The lamp housing and bulb according to claim 2, wherein the insertion projection is a projection for positioning the housing and the bulb. 6.   The bulb and housing for a lamp according to any one of claims 1 to 5, wherein the housing is made of an insulating material. A light source unit;
4 is a housing for disposing at least part of a cylindrical peripheral wall portion and arranging the light source portion on the inner side of the peripheral wall portion, and arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. A housing comprising a plurality of engagement grooves and two insertion grooves having different widths disposed at symmetrical positions with respect to the center of the peripheral edge on the one end side;
A light source attachment part formed in the housing and to which the light source part is attached;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. The four engaging protrusions arranged at intervals and the symmetrical positions with respect to the center of the opening edge, and the arrangement relationship with respect to the four engaging protrusions is relative to the four engaging grooves. a valve and a two insertion projections of the disposed position corresponding to the positional relationship of the insertion groove of different widths the two different widths,
A base electrically connected to the light source unit and exposed to the outside ;
With
The width of at least one of the two insertion grooves having different widths is smaller than the width of the engagement protrusion, and the insertion protrusion of at least one of the two insertion protrusions having different widths. The width of the ramp is larger than the width of the engaging groove. A light source unit;
4 is a housing for disposing at least part of a cylindrical peripheral wall portion and arranging the light source portion on the inner side of the peripheral wall portion, and arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. A housing comprising a plurality of engagement grooves and two insertion grooves having different widths disposed at positions other than a position symmetrical with respect to the center of the peripheral edge on the one end side;
A light source attachment part formed in the housing and to which the light source part is attached;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and the like, etc. Positions other than the four engagement protrusions arranged at intervals and the position symmetrical with respect to the center of the opening edge, and corresponding to the arrangement relationship of the two insertion grooves having different widths A valve having two different width insertion protrusions disposed;
A base electrically connected to the light source unit and exposed to the outside ;
With a lamp.   The engagement groove is a groove for latching the housing and the valve, the engagement projection is a projection for latching the housing and the valve, and the insertion groove is the housing and the valve. The lamp according to claim 7 or 8, wherein the insertion protrusion is a protrusion for positioning the housing and the bulb.   The lamp according to any one of claims 7 to 9, wherein the housing is made of an insulating material.   The lamp according to any one of claims 7 to 10, further comprising a lighting device including a power conversion circuit electrically connected to the light source unit and the base. 4 housings having a cylindrical peripheral wall portion at least partially, and a light source portion arranged on the inner side of the peripheral wall portion, arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. Forming a housing comprising a plurality of engagement grooves and two insertion grooves having different widths disposed at symmetrical positions with respect to the center of the peripheral edge on the one end side;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and is equidistant from the opening edge. The four engaging protrusions disposed on the opening and the center of the opening edge are symmetrical positions, and the arrangement relationship with respect to the four engaging protrusions is 2 with respect to the four engaging grooves. Forming a valve comprising two insertion protrusions having different widths disposed at positions corresponding to the arrangement relationship of the insertion grooves having the different widths ;
Including
The width of at least one of the two insertion grooves having different widths is smaller than the width of the engagement protrusion, and the insertion protrusion of at least one of the two insertion protrusions having different widths. A method of manufacturing a housing for a lamp and a bulb, wherein the two insertion protrusions and the four engagement grooves are formed such that the width of the lamp is larger than the width of the engagement groove. 4 housings having a cylindrical peripheral wall portion at least partially, and a light source portion arranged on the inner side of the peripheral wall portion, arranged at equal intervals on a peripheral edge portion on one end side of the peripheral wall portion. Forming a housing comprising a plurality of engaging grooves, and two insertion grooves having different widths disposed at positions other than symmetrical positions with respect to the center of the peripheral edge on the one end side;
A bulb having a hollow outer portion and an opening edge having a shape corresponding to the peripheral edge of the housing, and is fitted to the housing to cover the light source portion, and is equidistant from the opening edge. Are arranged at positions other than the positions symmetrical with respect to the center of the opening edge and corresponding to the arrangement relationship of the two insertion grooves having different widths. Forming a valve comprising two inserted projections of different widths ;
A housing for a lamp and a method for manufacturing a bulb.