JP6288930B2 - LIGHTING LAMP, LIGHTING DEVICE HAVING LIGHTING LAMP, AND METHOD FOR MANUFACTURING LIGHTING LAMP - Google Patents

Description

  The present invention relates to an illumination lamp, an illumination device including the illumination lamp, and a method for manufacturing the illumination lamp.

Conventionally, a filling member filling technique has been proposed for the purpose of either or both of cooling and insulating an electronic circuit.
For example, “This is the space for the smoothing capacitor that is electrically connected to the control board and placed horizontally in the case body, and the explosion-proof valve provided at the end of this capacitor. And a resin sealing means for filling the case body with a resin material and resin-sealing (potting) at least the rectifier circuit, the inverter switching circuit, and the control board with respect to the case body. In this inverter control device, a technique using a “partition body that surrounds the periphery of the capacitor and prevents the intrusion of the resin material” is disclosed as “a means for ensuring an explosion-proof valve operating function” (for example, a patent Reference 1).

  Further, “a circuit board on which electrical components including an input-side smooth electrolytic capacitor and an output-side smooth electrolytic capacitor having explosion-proof valves are placed in a case, and a molten mold resin is filled in the case, A switching DC power supply in which electrical components are molded and formed, wherein the barrier is provided such that the side surface of the cylindrical portion of the smooth electrolytic capacitor is integrated and the upper end is higher than the upper surface portion of the smooth electrolytic capacitor. What is formed "is disclosed (for example, see Patent Document 2).

  Further, "a lighting device having a plurality of electronic components constituting a lighting circuit for lighting a fluorescent lamp and a circuit board on which these electronic components are mounted with an electrolytic capacitor disposed at the center, and housed in the cover body" And covering the inside of the cover body so as to come into contact with the inner surface of the cover body and the circuit board surface of the lighting device while covering the electronic component having a high heat generation temperature among the plurality of electronic components of the lighting device. , And a heat-conductive substance having a thermal conductivity of 0.1 W / (m · k) or more ”is disclosed (for example, see Patent Document 3).

JP 2001-041499 A (Claim 1, Claim 3, FIG. 4, FIG. 5, FIG. 10) JP 2007-247551 A (Claim 1, Claim 2, FIG. 2) Japanese Patent No. 4421177 (Claim 1, Embodiment 3, FIG. 1)

When the configurations described in Patent Documents 1 and 2 are used, the filling member can be filled without interfering with the function of the pressure valve (explosion proof valve) of the electrolytic capacitor, and electric components other than the electrolytic capacitor are cooled (heat radiation). be able to. However, since the filling member is not in contact with the electrolytic capacitor, there remains a problem from the viewpoint of cooling (heat radiation) of the electrolytic capacitor.
In particular, Patent Document 2 has a description that a “barrier” is formed of a heat insulating material, and thus the problem of cooling (dissipating heat) of the electrolytic capacitor cannot be solved.

Further, in the techniques described in Patent Documents 1 and 2, a substrate on which circuit components are mounted and an electrolytic capacitor are arranged in a case, and the manufacturing cost related to the case increases.
In particular, the “partition body” described in Patent Document 1 (at least a part thereof) is premised on the use of the case. Therefore, it is necessary to create a plurality of types of cases according to the outer dimensions of the electrolytic capacitor selected based on the specifications of the apparatus, which further increases the manufacturing cost.

  In Patent Document 3, there is a description that the silicone resin is filled to such an extent that the pressure valve (safety valve) of the electrolytic capacitor is not blocked, but the specific configuration is not mentioned. That is, it cannot be said that Patent Document 3 discloses a specific configuration for cooling (dissipating heat) an electronic component including an electrolytic capacitor without interfering with the function of the pressure valve (safety valve) of the electrolytic capacitor.

  The present invention has been made against the background of the problems described above, and is used to cool or insulate a lighting circuit including an electrolytic capacitor without interfering with the function of a pressure valve (synonymous with a safety valve and an explosion-proof valve) of the electrolytic capacitor. Provided are an illumination lamp including a member, an illumination device including the illumination lamp, and a method of manufacturing the illumination lamp.

An illumination lamp according to the present invention is provided with a light source, a translucent glove that covers an emission side of the light source, and transmits light emitted from the light source, and at least an electrolytic capacitor, and is supplied via a base. A lighting circuit that converts commercial power to drive power for driving the light source and supplies the light source to the light source, and a housing that holds the lighting circuit inside and fits the globe and the base to form an internal space. A body part, and is housed in the housing part in a state attached to the electrolytic capacitor, and is held between at least a part of the outer surface excluding the pressure valve of the electrolytic capacitor and the inner surface of the housing part, A sealing member that divides the internal space of the housing into a first internal space in which the pressure valve is included and a second internal space in which the pressure valve is not included, and heat conduction that is filled in the second internal space With filling material It includes those were.

  An illumination device according to the present invention includes the illumination lamp.

An illumination lamp manufacturing method according to the present invention includes a light source, a translucent glove that covers an emission side of the light source and transmits light emitted from the light source, and at least an electrolytic capacitor. The commercial power supplied is converted into drive power for driving the light source and supplied to the light source, the lighting circuit is held inside, and the glove and the base are fitted to form an internal space. An illumination lamp manufacturing method comprising: a housing part to be formed; and a thermally conductive filling member filled around the lighting circuit in the internal space of the housing part , the sealing member being provided on the electrolytic capacitor in the process of attaching, at least a portion the inner surface of the housing portion of the outer surface except for the pressure valve of the electrolytic capacitor, holding the sealing member, the sealing member as a boundary, the interior space of the housing portion The electrolysis A step of separating into a first internal space and a second internal space pressure valve of capacitors are contained in the second internal space, and a step of filling the filling member.

  According to the present invention, the filling member can be filled around the lighting circuit in the casing without interfering with the function of the pressure valve of the electrolytic capacitor.

FIG. 3 is a cross-sectional view illustrating a configuration of a main part of the illumination lamp according to the first embodiment. 3 is an enlarged cross-sectional view of a main part of the illumination device according to Embodiment 1. FIG. (A) is sectional drawing of the principal part of the illuminating device which concerns on Embodiment 1, (b) is sectional drawing in the AA of (a). 6 is a cross-sectional view showing a configuration of a main part of an illumination lamp according to Embodiment 2. FIG. 6 is a cross-sectional view showing a configuration of a main part of an illumination lamp according to Embodiment 3. FIG. 6 is a cross-sectional view showing a configuration of a main part of an illumination lamp according to Embodiment 4. FIG. It is sectional drawing which shows the structure of the illuminating device to which the illumination lamp which concerns on Embodiment 1- Embodiment 4 was applied.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by the form of drawing shown below. Moreover, in each figure, the same code | symbol is attached | subjected to the same structure.

Embodiment 1 FIG.
FIG. 1 is a cross-sectional view illustrating a configuration of a main part of the illumination lamp according to the first embodiment.
As shown in FIG. 1, the illumination lamp 100 is a light bulb-shaped illumination lamp having a light source 1, a globe 2, a housing part 3, a base part 4, and a lighting circuit 5.

  In the first embodiment, the light source 1 includes a light emitting diode (hereinafter referred to as an LED) 10 that is a light emitting means, and an LED substrate 11 on which the LED 10 is mounted. In addition to the LED 10 and the LED substrate 11, the components of the light source 1 include wiring members (not shown) such as a wire harness and a connector that are electrically connected to the lighting circuit 5 and transmit drive power from the lighting circuit 5 to the light source 1. In addition, an attachment member (not shown) such as a screw for attaching the LED substrate 11 to the housing unit 3, and electronic components required according to the design specifications of the illumination lamp 100 are included.

  The globe 2 is made of a material that transmits light emitted from the light source 1 such as glass or resin (a material having translucency), and is disposed so as to cover the light emission side of the light source 1. As the resin constituting the globe 2, for example, polycarbonate or acrylic is selected according to product specifications. In the example of FIG. 1, the globe 2 has a curved outer shape. The globe 2 transmits light emitted from the light source 1 and has a function of diffusing, condensing, and reflecting light according to the specifications of the illumination lamp 100. These functions are realized directly by the base material itself by forming a diffusion layer (or surface), a lens, a reflective layer (or surface), etc. when the glass or resin that is the base material of the globe 2 is molded. Alternatively, another member that realizes these functions may be combined on the surface of the base material.

  The casing unit 3 includes a resin casing 30 that houses the lighting circuit 5 therein, and a metal casing 31 that is attached to the outside of the resin casing 30. The resin casing 30 is molded using a synthetic resin material such as plastic. The resin casing 30 has a space inside and an opening into which the lighting circuit 5 is inserted. A holding structure (not shown) for holding the circuit board 502 of the circuit component 50 included in the lighting circuit 5 is formed inside the resin casing 30. A predetermined gap is formed between the inner surface of the resin casing 30 and the circuit component 50 included in the lighting circuit 5 except for the circuit board 502 held by the holding structure. That is, the lighting circuit 5 is contained and held in the internal space of the resin casing 30 so that mechanical stress is not applied to the circuit component 50.

  The base part 4 has a structure in which one end is fitted to a lighting fixture (for example, a socket, not shown), and is an input end for inputting commercial power to the lighting lamp 100 via the lighting fixture. Further, the other end of the base part 4 is fitted into the casing part 3, and commercial power is supplied to the lighting circuit 5 through the base part 4.

  In the example of FIG. 1, the light source 1 is attached to the end surface of the metal housing 31 opposite to the base 4, and the globe 2 is attached to the metal housing 31 so as to cover the light emission surface of the light source 1. It is attached. When the casing 3 having the resin casing 30 and the metal casing 31 and the globe 2 are combined, they form a bulb-shaped outer shape as a whole. The casing 3 is fitted with the globe 2 at one end side and fitted with the base part 4 at the other end side, and an inner space for accommodating the lighting circuit 5 is formed inside the casing part 3. The

  The lighting circuit 5 includes an AC-DC converter circuit that converts AC power, which is commercial power, into direct current that drives the LED 10. The lighting circuit 5 converts the commercial power input from the base unit 4 into driving power for driving the light source 1 and supplies the driving power to the light source 1. Preferably, the lighting circuit 5 has a load fluctuation detection function, a control function for controlling the drive current output from the AC-DC converter circuit in accordance with the load fluctuation, and a commercial power supply path in order to drive the LED 10 stably. Further, it has a filter function or the like that removes or reduces noise flowing in and / or out through. In the present embodiment, among the components that realize these functions of the lighting circuit 5, the electrolytic capacitor 501 and at least the circuit board 502 on which the electrolytic capacitor 501 is mounted are collectively referred to as a circuit component 50. Of course, the electrolytic capacitor 501 may be mounted on the circuit component 50.

  In the illumination lamp 100 according to the first embodiment, the electrolytic capacitor 501 smoothes the input commercial power or drives the pulsating current of the driving power supplied to the light source 1 to drive the LED 10 that is the light emitting means of the light source 1. It has a function to reduce. By supplying stable direct current power to the light source 1, there is an effect of realizing stable light emission.

  The external dimensions of the electrolytic capacitor 501 depend on the capacitance value and voltage specification of the electrolytic capacitor 501 determined according to the design specification of the illumination lamp 100.

  In the illumination lamp 100 of the first embodiment, the electrolytic capacitor 501 is included on the base part 4 side of the internal space of the housing part 3. This arrangement is suitable when considering the dimensional restrictions associated with the miniaturization of the illumination lamp 100 and the purpose of improving the operational reliability of the electrolytic capacitor 501 by being separated from the light source 1 as the main heat source. It is an arrangement.

  In the case where the light source 1 has a light emitting means other than the LED, etc., the electrolytic capacitor 501 may have other uses and functions, but the detailed description is omitted.

FIG. 2 is an enlarged cross-sectional view of a main part of the lighting apparatus according to Embodiment 1.
As shown in FIG. 2, a pressure valve 9 is provided at the end of the electrolytic capacitor 501. The pressure valve 9 has a function of opening when the internal pressure of the electrolytic capacitor 501 becomes a predetermined value or more due to, for example, high temperature, and discharging the internal gas to the outside. The electrolytic capacitor 501 is accommodated in the resin casing 30 such that the pressure valve 9 faces the inner surface of the resin casing 30. Here, of the inner surface of the resin housing 30, the surface facing the pressure valve 9 is referred to as a housing inner surface 301. A gap D between the pressure valve 9 and the housing inner surface 301 of the resin housing 30 facing the pressure valve 9 is set to a predetermined size that does not hinder the function of the pressure valve 9 of the electrolytic capacitor 501.

  In the process of manufacturing the illumination lamp 100, in the process of disposing the lighting circuit 5 on which the electrolytic capacitor 501 is mounted inside the resin housing 30, the space between the housing inner surface 301 and the pressure valve 9 of the electrolytic capacitor 501 is between. The lighting circuit 5 is installed so as to have the gap D. The size of the gap D depends on component specifications such as the outer dimensions of the electrolytic capacitor 501 and the dimensions of the pressure valve 9, the mounting position of the electrolytic capacitor 501 on the circuit board 502, the lead forming dimensions of the electrolytic capacitor 501, and the resin casing 30. It is set in consideration of design specifications of a holding structure (not shown) for holding the circuit board 502 to be formed.

FIG. 3A is a cross-sectional view of the main part of the lighting apparatus according to Embodiment 1, and FIG. 3B is a cross-sectional view taken along the line AA in FIG.
As shown in FIGS. 3A and 3B, in the first embodiment, the inside of the resin casing 30 is cylindrical, the cylindrical inner peripheral surface of the resin casing 30, and the electrolytic capacitor 501. The sealing member 7 is disposed over the entire circumference in the gap with the outer peripheral surface of the. Here, the cylindrical inner surface of the resin housing 30 is referred to as the housing inner surface 302.

  The sealing member 7 is a resin seal having elasticity (either volume elasticity or shape elasticity or both). The sealing member 7 is held between at least a part of the outer surface of the electrolytic capacitor 501 excluding the pressure valve 9 and the housing inner surface 302 of the resin housing 30, and is in close contact with them. As shown in FIG. 3B, the space between the housing inner surface 302 and the outer peripheral surface of the electrolytic capacitor 501 is filled with the sealing member 7 and there is no gap.

Examples of the specific configuration of the sealing member 7 and the step of attaching the sealing member 7 in the manufacturing process of the illumination lamp 100 include the following.
For example, the sealing member 7 is made of rubber, and a step of attaching the sealing member 7 to the electrolytic capacitor 501 is provided before the step of holding the lighting circuit 5 in the internal space of the housing unit 3. Thereafter, a step of accommodating the lighting circuit 5 including the electrolytic capacitor 501 to which the sealing member 7 is attached in the internal space of the casing 3 is provided, and the sealing member 7 is provided on the casing inner surface 302 of the resin casing 30. It can be in close contact.
Alternatively, the sealing member 7 is, for example, a gel-like curable resin, and after the step of holding the lighting circuit 5 in the internal space of the housing portion 3, the outer surface of the electrolytic capacitor 501 and the resin housing 30 are A step of filling the sealing member 7 in a gap with the housing inner surface 302 is provided.
The specific material of the sealing member 7 is not limited to the above.

  The internal space of the resin casing 30 is separated into two spaces with the sealing member 7 as a boundary. The internal space of the resin housing 30 includes a first internal space 12 that is a space in which the pressure valve 9 of the electrolytic capacitor 501 is enclosed, and the other space of the first internal space 12 (that is, the pressure valve 9 of the electrolytic capacitor 501). The second internal space 13 is a space that is not included). In other words, the sealing member 7 includes an internal space of the resin housing 30, a first internal space 12 that contains the pressure valve 9 of the electrolytic capacitor 501, and a second internal space 13 that does not contain the pressure valve 9 of the electrolytic capacitor 501. It is installed so as to be separated.

  At least a part of the second internal space 13 is filled with the filling member 6. The filling member 6 is made of a material having either or both of thermal conductivity and insulating properties. The filling member 6 is filled only in the second internal space 13 above the paper surface of the sealing member 7 in FIG. 3A, and fills the periphery of a part of the lighting circuit 5 arranged in the second internal space 13. Yes. The heat generated by the AC-DC converter circuit mounted on the lighting circuit 5 and the heat generated from the light source 1 are transferred from the filling member 6 to the outside of the illumination lamp 100 via the resin housing 30 and the metal housing 31. Communicated. That is, the cooling of the light source 1 and the lighting circuit 5 is promoted by providing the filling member 6 in contact with the circuit mounted on the lighting circuit 5.

  The filling member 6 is after the step in which the lighting circuit 5 is accommodated in the housing 3 and the step in which the sealing member 7 is attached between the outer surface of the electrolytic capacitor 501 and the housing inner surface 302 of the resin housing 30. The second internal space 13 is filled. Since the first internal space 12 is separated from the second internal space 13 with the sealing member 7 as a boundary, the filling member 6 does not enter the first internal space 12 beyond the sealing member 7. That is, even if the second internal space 13 is filled with the filling member 6 in the step of filling the second internal space 13 with the filling member 6, the pressure valve 9 of the electrolytic capacitor 501 contained in the first internal space 12 The filling member 6 does not contact. For this reason, the filling member 6 does not interfere with the function of the pressure valve 9 of the electrolytic capacitor 501.

  When a foamed resin typified by foamed urethane or foamed epoxy is used as the sealing member 7, it functions as a boundary of a space having a heat insulating effect. In addition, it is not necessary to make the outer surface of the electrolytic capacitor 501 function as a heat dissipation path, and when priority is given to heat insulation between the electrolytic capacitor 501 and the second internal space 13 adjacent to the light source 1 as a main heat generation source, foaming is performed. It is preferable that the boundary using the resin is disposed on the second internal space 13 side, and many regions on the outer surface of the electrolytic capacitor 501 are included in the first internal space 12.

(Effect of Embodiment 1)
According to the first embodiment, even if the filling member 6 that cools the lighting circuit 5 including the light source 1 and the electrolytic capacitor 501 of the illumination lamp 100 is filled, the filling member 6 is blocked by the sealing member 7. Therefore, the electrolytic capacitor 501 does not enter the first internal space 12 containing the pressure valve 9. For this reason, the filling member 6 does not contact the pressure valve 9 of the electrolytic capacitor 501, and the function of the pressure valve 9 of the electrolytic capacitor 501 is not hindered. And since the filling member 6 is filled around the lighting circuit 5 including the light source 1 and the electrolytic capacitor 501 of the illumination lamp 100, the cooling effect of the filling member 6 can be secured. Therefore, the operational reliability and life of the electrolytic capacitor 501 can be improved, and the operational quality of the illumination lamp 100 can be ensured.

Embodiment 2. FIG.
FIG. 4 is a cross-sectional view showing a configuration of a main part of the illumination lamp according to the second embodiment. In the second embodiment, the difference from the first embodiment will be mainly described.
As shown in FIG. 4, a recess 303 is formed in the housing inner surface 302 of the resin housing 30a that contacts the outer surface of the sealing member 7a. The recess 303 is formed by denting the housing inner surface 302 toward the radially outer side so as to increase the diameter of the housing inner surface 302. The length of the recess 303 in the axial direction of the resin casing 30a and the length of the sealing member 7a are substantially the same, and the sealing member 7a is fitted in the recess 303. Both ends of the sealing member 7a in the axial direction of the resin casing 30a are in contact with both ends of the recess 303 in the axial direction of the resin casing 30a, and the sealing member 7a is positioned in the axial direction by the recess 303. Has been.

  In the first embodiment described above, the sealing member 7 is configured to be in close contact with the inner surface 302 of the resin casing 30 using the elasticity of the sealing member 7, and the resin casing to which the sealing member 7 is attached. Even when the first inner space 12 of 30 is filled with the filling member 6, the sealing member 7 does not move. On the other hand, in the second embodiment, in addition to using the elasticity of the sealing member 7a as in the first embodiment, the sealing member 7a is a resin casing due to the fitting structure of the recess 303 and the sealing member 7a. 30. That is, the concave portion 303 functions as a locking portion that restricts the movement of the sealing member 7a toward the first internal space 12 side.

(Effect of Embodiment 2)
According to the second embodiment, even if the filling member 6 for cooling the lighting circuit 5 including the light source 1 and the electrolytic capacitor 501 of the illumination lamp 100 is filled, the filling member 6 is blocked by the sealing member 7a. Therefore, the electrolytic capacitor 501 does not enter the first internal space 12 containing the pressure valve 9. For this reason, the filling member 6 does not contact the pressure valve 9 of the electrolytic capacitor 501, and the function of the pressure valve 9 of the electrolytic capacitor 501 is not hindered. And since the filling member 6 is filled around the lighting circuit 5 including the light source 1 and the electrolytic capacitor 501 of the illumination lamp 100, the cooling effect of the filling member 6 can be secured. Therefore, the operational reliability and life of the electrolytic capacitor 501 can be improved, and the operational quality of the illumination lamp 100 can be ensured.

  In addition, a recess 303 is provided on the housing inner surface 302 as a locking portion that restricts the movement of the sealing member 7 a toward the first internal space 12, and the sealing member 7 a is fitted into the recess 303. For this reason, even after the sealing member 7a is attached to the resin casing 30, even if the filling member 6 is filled in the second internal space 13 and the pressure from the filling member 6 is applied to the sealing member 7a, the sealing member It can suppress that 7a moves to the 1st internal space 12 side. Therefore, it is possible to suppress manufacturing defects due to the sealing member 7a moving to the pressure valve 9 side by the pressure when the filling member 6 is filled.

Embodiment 3 FIG.
FIG. 5 is a cross-sectional view showing a configuration of a main part of the illumination lamp according to the third embodiment. In the third embodiment, the description will focus on the differences from the second embodiment.
As shown in FIG. 5, a convex portion 304 is formed on the housing inner surface 302 of the resin housing 30 b so as to protrude radially inward of the housing inner surface 302. The convex portion 304 is located in the first internal space 12, and the end portion on the first internal space 12 side of the sealing member 7 contacts the end portion on the second internal space 13 side of the convex portion 304. The sealing member 7 is positioned in the first internal space 12 direction by the convex portion 304. That is, the convex portion 304 functions as a locking portion that restricts the movement of the sealing member 7 toward the first internal space 12.

(Effect of Embodiment 3)
According to the third embodiment, even if the surroundings of the lighting circuit 5 including the light source 1 and the electrolytic capacitor 501 of the illumination lamp 100 are filled with the filling member 6 that cools the lighting circuit 5, the filling member 6 is blocked by the sealing member 7. Therefore, the electrolytic capacitor 501 does not enter the first internal space 12 containing the pressure valve 9. For this reason, the filling member 6 does not contact the pressure valve 9 of the electrolytic capacitor 501, and the function of the pressure valve 9 of the electrolytic capacitor 501 is not hindered. And since the filling member 6 is filled around the lighting circuit 5 including the light source 1 and the electrolytic capacitor 501 of the illumination lamp 100, the cooling effect of the filling member 6 can be secured. Therefore, the operational reliability and life of the electrolytic capacitor 501 can be improved, and the operational quality of the illumination lamp 100 can be ensured.

  Further, a convex portion 304 is provided on the housing inner surface 302 as a locking portion that restricts the movement of the sealing member 7 toward the first internal space 12. For this reason, when the sealing member 7 is attached to the resin casing 30, the second internal space 13 is filled with the filling member 6 and the pressure from the filling member 6 is applied to the sealing member 7. It can suppress that the stop member 7 moves to the 1st internal space 12 side. Therefore, it is possible to suppress manufacturing defects caused by the sealing member 7 moving to the pressure valve 9 side with the pressure when the filling member 6 is filled.

Embodiment 4 FIG.
FIG. 6 is a cross-sectional view showing a configuration of a main part of the illumination lamp according to the fourth embodiment. In the fourth embodiment, the description will focus on differences from the second embodiment.
As shown in FIG. 6, a step is formed on the inner surface 302 of the resin casing 30 c so that the inner diameter on the first inner space 12 side is smaller than the second inner space 13 side. The step portion is referred to as a receiving portion 305. The end of the receiving member 305 on the second internal space 13 side is in contact with the end of the sealing member 7 on the first internal space 12 side. The sealing member 7 is positioned in the first internal space 12 direction by the receiving portion 305. That is, the receiving part 305 functions as a locking part that restricts the movement of the sealing member 7 toward the first internal space 12.

(Effect of Embodiment 4)
According to the fourth embodiment, even if the surroundings of the lighting circuit 5 including the light source 1 and the electrolytic capacitor 501 of the illumination lamp 100 are filled with the filling member 6 that cools the lighting circuit 5, the filling member 6 is blocked by the sealing member 7. Therefore, the electrolytic capacitor 501 does not enter the first internal space 12 containing the pressure valve 9. For this reason, the filling member 6 does not contact the pressure valve 9 of the electrolytic capacitor 501, and the function of the pressure valve 9 of the electrolytic capacitor 501 is not hindered. And since the filling member 6 is filled around the lighting circuit 5 including the light source 1 and the electrolytic capacitor 501 of the illumination lamp 100, the cooling effect of the filling member 6 can be secured. Therefore, the operational reliability and life of the electrolytic capacitor 501 can be improved, and the operational quality of the illumination lamp 100 can be ensured.

  In addition, a step-shaped receiving portion 305 is provided on the housing inner surface 302 as a locking portion that restricts the movement of the sealing member 7 toward the first internal space 12. For this reason, when the sealing member 7 is attached to the resin casing 30, the second internal space 13 is filled with the filling member 6 and the pressure from the filling member 6 is applied to the sealing member 7. It can suppress that the stop member 7 moves to the 1st internal space 12 side. Therefore, it is possible to suppress manufacturing defects caused by the sealing member 7 moving to the pressure valve 9 side with the pressure when the filling member 6 is filled.

  In addition, the attachment structure to the housing | casing part of the sealing member shown in FIGS. 3-6 is an example. The sealing member does not block the pressure valve of the electrolytic capacitor, and the cooling effect of the electrolytic capacitor or the heat insulation effect from the heat source corresponding to the heat resistance performance of the electrolytic capacitor is obtained, and the first internal space in which the pressure valve is accommodated is filled As long as the member does not enter, any sealing member mounting structure can be adopted.

  Moreover, although the example which used LED as a light source of an illumination lamp was shown in the said Embodiment 1-Embodiment 4, a light source is not limited to LED. For example, any of a laser diode, an organic EL (Electro-Luminescence), and a fluorescent lamp may be used as the light source of the illumination lamp, and other than these may be used as long as they emit light.

  In addition, the illumination lamp shown in the first to fourth embodiments is combined with a socket that fits into a base of the illumination lamp and a housing that houses one or a plurality of illumination lamps. Can be configured. FIG. 7 is a cross-sectional view illustrating a configuration of an illumination device to which the illumination lamp according to Embodiments 1 to 4 is applied. As shown in FIG. 7, the illumination device 150 includes an appliance main body 151 that contains the illumination lamp 100, a socket 152 to which a cap portion 4 (see FIG. 1) of the illumination lamp 100 is attached, and an illumination provided in the appliance main body 151. And a reflector 153 that reflects light emitted from the lamp 100. The lighting device 150 illustrated in FIG. 7 is a lighting device that is inserted into an opening formed in the ceiling 160 and illuminates the room from the ceiling 160 side. In addition to such a ceiling-mounted illumination device, for example, the illumination lamp shown in Embodiments 1 to 4 is applied to an illumination device installed on a wall or an illumination device placed on a table. Can do.

  DESCRIPTION OF SYMBOLS 1 Light source, 2 Globe, 3 Housing | casing part, 4 nozzle | cap | die part, 5 lighting circuit, 6 filling member, 7 sealing member, 7a sealing member, 9 pressure valve, 10 LED, 11 LED board, 12 1st internal space, 13 Second internal space, 30 Resin casing, 30a Resin casing, 30b Resin casing, 30c Resin casing, 31 Metal casing, 50 Circuit parts, 100 Illumination lamp, 150 Illuminating device, 151 Instrument body, 152 Socket, 153 reflector, 160 ceiling, 301 inner surface of housing, 302 inner surface of housing, 303 concave portion, 304 convex portion, 305 receiving portion, 501 electrolytic capacitor, 502 circuit board.

Claims (13)

A light source;
A light-transmitting glove that covers an emission side of the light source and transmits light emitted from the light source;
A lighting circuit in which at least an electrolytic capacitor is mounted and commercial power supplied via a base is converted into driving power for driving the light source and supplied to the light source, and
A housing portion that holds the lighting circuit inside and fits with the globe and the base to form an internal space;
The casing is accommodated in the casing in a state of being attached to the electrolytic capacitor, and is held between at least a part of the outer surface excluding the pressure valve of the electrolytic capacitor and the inner surface of the casing. A sealing member that divides the internal space into a first internal space in which the pressure valve is included and a second internal space in which the pressure valve is not included,
An illumination lamp, comprising: a heat conductive filling member filled in the second internal space. The sealing member is held between a part of the outer surface excluding the pressure valve and the inner surface of the casing part in a state where the lighting circuit is held by the casing part.
The illumination lamp according to claim 1. The sealing member has elasticity, and at least a portion of said outer surface, except for the pressure valve, in close contact with the inner surface of the casing, the interior space of the housing portion, said first internal space The illumination lamp according to claim 1, wherein the illumination lamp is divided into the second internal space. Wherein the first internal space, the illumination lamp according to any one of claims 1 to 3, thermal conductivity of the filling member is equal to or unfilled. Wherein the inner surface of the casing, any one of claims 1 to 4, wherein a locking portion for restricting the movement to the first internal space side of the sealing member is formed The illumination lamp according to item. The locking portion has a recessed portion that is recessed so as to expand the inner diameter of the internal space of the housing portion,
The illumination lamp according to claim 5 , wherein the sealing member is fitted in the recess. The locking portion, the projecting towards the inner surface of the casing radially inwardly claim characterized by having a contact with the convex portion at an end portion of the first inner space side of the sealing member 5 The described illumination lamp. The locking portion includes a stepped receiving portion formed on the inner surface of the housing portion such that the inner diameter of the first inner space is smaller than the inner diameter of the second inner space.
The illumination lamp according to claim 5 , wherein an end of the sealing member on the first internal space side is in contact with the receiving portion. And the pressure valve, between the inner surface of the casing to face the pressure valve is any one of claims 1 to 8, characterized in that a gap which does not interfere with the opening of the pressure valve The illumination lamp according to item. The illumination lamp according to any one of claims 1 to 9 , wherein the electrolytic capacitor is included in the base side of the internal space of the casing. The illuminating device provided with the illumination lamp as described in any one of Claims 1-10 . A light source;
A light-transmitting glove that covers an emission side of the light source and transmits light emitted from the light source;
A lighting circuit in which at least an electrolytic capacitor is mounted and commercial power supplied via a base is converted into driving power for driving the light source and supplied to the light source, and
A housing portion that holds the lighting circuit inside and fits with the globe and the base to form an internal space;
A heat conductive filling member filled around the lighting circuit in the internal space of the housing part,
Attaching a sealing member to the electrolytic capacitor;
Wherein at least a portion of the outer surface except for the pressure valve of the electrolytic capacitor and the inner surface of the casing, the sealing member holding, the sealing member as a boundary, the electrolytic capacitor of the internal space of the housing portion Dividing the first internal space into which the pressure valve is enclosed and the second internal space;
Filling the second internal space with the filling member. A method of manufacturing an illumination lamp, comprising: A step of disposing the lighting circuit inside the casing by providing a gap between the pressure valve and the inner surface of the casing facing the pressure valve so as not to prevent the pressure valve from being opened; The manufacturing method of the illumination lamp of Claim 12 characterized by the above-mentioned.

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