JP2010244750A - Electric apparatus, and luminaire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrical apparatus such as a lighting device for a discharge lamp wherein the distal end portion of an insulating sheet is easily laid on top of another with the insulating sheet properly placed on a base cover. <P>SOLUTION: A pair of vertical wall portions 32a, 32b of the insulating sheet 3 are deformed so that their distal end portions incline inward by abutting on the inner surface of the top plate 5a or inclined plate 5b of a cover case 5 fitted to a base case 2 and being elastically bent. Since a bent portion 39 is formed on the distal end portion side of one vertical wall portion 32a, the distal end porion side is deformed while inclining further toward the base case 2 side than the distal end portion of the other vertical wall portion 32b. The distal end portion is laid on top of another in the inside of the top plate 5a so that the distal end portion side of one vertical wall portion 32a, where the bent portion 39 is formed, gets into the inside, and a process to lay the distal end portion of the insulating sheet 3 on top of another by an automatic assembling device is easily materialized. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is configured in a box shape by a bowl-shaped base case and a cover case which is a lid thereof, and a discharge lamp lighting device including an insulating sheet for insulating a circuit provided inside the box shape, etc. It relates to the electrical equipment.

  A conventional discharge lamp lighting device as an electric device has a structure in which a printed circuit board is arranged through an insulating sheet inside a base case and a cover case which is a lid of the base case (see Patent Document 1). .

  The above-described conventional electric device covers the entire circumference of the printed circuit board with a single insulating sheet, and the insulating sheet is ensured to be insulated from the inner surface of the base case and the cover case by overlapping the leading end portions of the insulating sheet. . And when this cover sheet is fitted to the base case, the insulating sheet is overlapped with the tip portions and the tips are attached with a tape, or the outer side of the cover case provided with a locking piece. By fixing the tip, it is fixed so that no displacement occurs.

JP 2002-290064 A

  However, the above-described conventional electrical equipment has a complicated process for the operator to attach the tape to the tip of the insulating sheet, and it is difficult to provide a tape attaching process by an automatic assembly device for labor saving. is there. In addition, providing a locking piece for locking the leading end of the insulating sheet on the inner surface of the cover case increases the processing cost, and the locking direction of the locking piece matches the direction of the outer leading end of the insulating sheet. The front end portions had to be overlapped with each other, and a step of overlapping the insulating sheet front end portions with an automatic assembly apparatus was necessary.

  The present invention has been made in view of the above-described problems, and a discharge lamp lighting device and the like that can easily overlap the leading end portions of the insulating sheet with the insulating sheet properly placed on the base cover. Providing electrical equipment.

  The electrical device according to the present invention is configured in a bowl shape by a bottom surface portion and a pair of side wall portions continuous upward from both sides of the bottom surface portion, and a first engagement portion and a restraining portion are formed on the pair of side wall portions. A base case; a top plate portion and a pair of side plate portions formed continuously from both sides of the top plate portion, and the pair of side plate portions engage with each other so as to overlap the side wall portions of the base case. A cover case; formed of an elastic film, having a bottom portion along the inner surface of the bottom surface portion of the base case and a pair of vertical wall portions extending upward along the inner surface of the side wall portion of the base case from both sides of the bottom portion; A bent portion that bends inward is formed on one tip portion side of the pair of vertical wall portions, and each of the tip portions of the pair of vertical wall portions is in contact with the inner surface of the cover case to be bent elastically. The tip side where the part is formed is the inside An insulating sheet overlapped with each other on the inner side of the top plate part; and an electric circuit configured by a circuit board on which electrical components are mounted, and the circuit board is disposed on the bottom face side of the base case via the insulating sheet; It is characterized by having.

  The insulating sheet is formed of a single elastic film such as polyethylene terephthalate (PET). The pair of vertical wall portions of the insulating sheet are deformed so that the front end portions thereof are in contact with the inner surface of the cover case when the cover case is fitted, are in contact with the inner surface of the cover case, are elastically bent, and are inclined inward. . At this time, a bent portion that bends inward is formed on one tip portion side of the pair of vertical wall portions, so that when the tip portions are tilted inward, the two interfere with each other. It is not hindered to be elastically bent into a desired shape, and the tip portions are overlapped with each other so that the tip portion side on which the bent portion is formed is inside the top plate portion. For this reason, it is also possible to easily realize a superimposing process between the leading end portions of the insulating sheets by the automatic assembling apparatus.

  According to a second aspect of the present invention, in the electric device according to the first aspect, the bent portion of the insulating sheet has a first bent portion that bends inward and a distal end surface of the vertical wall portion that is parallel to a base end surface of the vertical wall portion. It has the 2nd bending part turned back outside, It is characterized by the above-mentioned.

  Since the front end surface of the vertical wall portion is parallel to the base end surface of the vertical wall portion, the pair of vertical wall portions of the insulating sheet extends along the pair of side wall portions of the base case. Above that, an opening having substantially the same size as the bottom surface of the insulating sheet is formed. For this reason, it becomes possible to perform the operation | work which mounts an electric circuit in the bottom part of an insulating sheet easily.

  The lighting fixture according to claim 3 comprises the electric device according to claim 1 or 2 used as a lighting device; a light source that is turned on by the lighting device; and a fixture body in which the lighting device and the light source are arranged. It is characterized by doing.

  As a lighting light source when used as a lighting device, a fluorescent lamp, an LED, or the like can be employed.

  According to the present invention, since the bent portion that bends inward is formed on one tip portion side of the pair of vertical wall portions of the insulating sheet, the tip portion side on which the bent portion is formed inside the top plate portion is The tips are overlapped with each other so as to be inside. For this reason, when the cover case is fitted, it interferes with the inner surface of the cover case so that the two end portions are in contact with each other when the tip portions are tilted inward, thereby preventing the elastic bending into a desired shape. Therefore, it is possible to provide an electrical apparatus that can perform desired superposition and ensure insulation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The partial omission perspective view which shows the structure by the side of the base case of the Example which concerns on the electric equipment of this invention. The partial omission perspective view which shows the structure of the cover case of the Example which concerns on the electric equipment of this invention. It is a figure which shows the structure of the insulating sheet applied to the Example which concerns on the electric equipment of this invention, (a) is a top view, (b) is a front view The schematic side view which shows the process in which the insulating sheet of FIG. 4 is elastically bent. The principal part perspective view which shows the manufacturing process of the Example which concerns on the electric equipment of this invention. The perspective view which shows the structure of the lighting fixture comprised using the Example which concerns on the discharge lamp lighting device as an electric equipment of this invention.

Hereinafter, with reference to the accompanying drawings, embodiments of electrical equipment and lighting equipment such as lighting devices according to the present invention will be described. In each figure, the same components are denoted by the same reference numerals, and redundant description is omitted. The electric apparatus according to the present embodiment is a discharge lamp lighting device. FIG. 1 shows a perspective view of the main part, FIG. 2 shows a perspective view of the main part with the cover case removed, and FIG. And the principal part perspective view of a 2nd insulating sheet is shown.

  The discharge lamp lighting device 1 shown in the above drawings includes a base case 2, an insulating sheet 3, a lighting circuit 4, and a cover case 5 as main components. The insulating sheet 3 is disposed along the inner side of the base case 2 and blocks electrical connection between the metal base case 2 and the lighting circuit 4. The lighting circuit 4 has a configuration in which electrical components are mounted on a circuit board 6. The cover case 5 has a function of a lid that covers the base case 2. The lighting circuit 4 is housed in a state of being covered with an insulating sheet 3 in a housing constituted by the cover case 5 and the base case 2.

  The base case 2 is configured, for example, by bending a single metal flat plate and providing a pair of side wall portions 2b, 2b on both sides of the bottom surface portion 2a. As the metal, for example, a steel plate material is used. The bottom surface portion 2a is formed in an elongated rectangular shape. The pair of side wall portions 2b and 2b are bent upward from both sides so as to extend along the longitudinal direction of the bottom surface portion 2a, and the base case 2 as a whole is formed in a substantially bowl shape substantially orthogonal to the bottom surface portion 2a and facing each other. Has been. The side walls 2b and 2b are inclined so that the side edges 2bb and 2bb on both sides in the longitudinal direction expand toward the lower side, and the cross section is formed in a substantially trapezoidal shape as a whole.

  As shown in FIG. 2, the pair of side wall portions 2b and 2b are provided with a hole 8 as an engagement receiving portion and a rectangular through hole at one end side 2ba in the longitudinal direction, the other end side not shown, and the center position. 10 are formed. The hole 8 is formed in a circular shape and is sized to engage with a convex portion (convex toward the base case 2) 16 that is an engaging portion of the cover case 5.

  Further, in the pair of side wall portions 2b and 2b, long substrate support step portions 22 projecting inward of the side wall portions 2b and 2b are respectively provided at one end side 2ba in the longitudinal direction and the other end side (not shown) and the center position. It is formed as a restraining part and a projection part of the base case 2. A total of six substrate support steps 22 support the circuit board 6 via the flanges 33 of the first insulating sheet 3 formed in advance so as to correspond to the shape of the substrate support step 22. Further, a mounting hole 12 is formed in one end side 2aa in the longitudinal direction of the bottom surface portion 2a and the other end side (not shown).

  The insulating sheet 3 is made of an insulating resin film such as polyethylene terephthalate (PET) that is formed in a flat shape, and is disposed on the base case 2 along the inner surface of the base case 2, and a part of the insulating sheet 3 is a side wall. It protrudes upward from the parts 2b and 2b. The thickness of the first insulating sheet 3 is, for example, 0.2 to 1.0 mm.

  The insulating sheet 3 is configured as shown in FIGS. 4 to 6 and has a bottom 31 having a shape along the inner surface of the bottom surface 2 a of the base case 2. On both sides of the bottom portion 31, there are vertical wall portions 32 a and 32 b along the inner surfaces of the pair of side wall portions 2 b and 2 b in the base case 2. The vertical wall portions 32a and 32b are bent inwardly by folding lines extending in the longitudinal direction to form flange portions 33 and 33 at positions approximately three quarters from the upper end of the height of the vertical wall portions 32a and 32b. . In FIG. 2, the other vertical wall portion 32b is not shown by a notch for the purpose of explanation.

  Inclined portions 34, 34 extending from the flange portions 33, 33 to the corner portion on the bottom portion 31 side are formed. In the first insulating sheet 3, the connecting portions of the inclined portions 34, 34 and the bottom portion 31 are acute angle portions 35, 35 protruding at an acute angle toward the corner portions 2 c, 2 c of the base case 2.

  Moreover, as shown in FIG. 4, the notch part 36 which has a "3" -shaped peripheral part for contact | abutting with the standing piece 11 mentioned later in the longitudinal direction both ends in the bottom part 31 of the 1st insulating sheet 3 is shown. Is formed. Both ends in the longitudinal direction of the vertical wall portions 32, 32 of the first insulating sheet 3 are cut into a rectangular shape to form a low back portion 37, and both ends in the longitudinal direction of the vertical wall portions 32, 32 of the base case 2 are formed. It matches the shape of the part. Furthermore, a rectangular notch 38 is formed at the center of one vertical wall 32 in the first insulating sheet 3. The notch 38 is configured to project a heat sink (not shown) of the transistor mounted on the circuit board 6 so that the heat sink and the cover case 5 can contact each other.

  As shown to Fig.5 (a), the bending part 39 in which the front-end | tip part side bends inward is formed in one vertical wall part 32a of a pair of vertical wall part 32a, 32b. The bent portion 39 is folded outward so that the first bent portion 39a that bends the distal end side of the vertical wall portion 32a inward and the distal end surface 32aa of the vertical wall portion 32a are parallel to the base end surface 32ab of the vertical wall portion. And a second bent portion 39b. The bending angle of the first bent portion 39a is preferably in the range of 120 to 150 °. The second bent portion 39b is folded back at the same angle as the bending angle of the first bent portion 39a. The other vertical wall portion 32b has a flat surface above the flange portion 33, and the heights of the tip portions of the pair of vertical wall portions 32a and 32b are substantially the same.

  The lighting circuit 4 is configured by mounting electrical components on a circuit board 6. The circuit board 6 is made of, for example, a glass epoxy material or a paper phenol material, and is formed in a rectangular shape. The longitudinal dimension of the circuit board 6 depends on the longitudinal dimension of the upper surface 2bc of the side wall 2b of the base case 2. The width dimension is designed to be somewhat smaller than the value obtained by subtracting the thickness of the first insulating sheet 3 from the dimension between the pair of side wall portions 2b and 2b.

  Furthermore, on the upper surface 6a of the circuit board 6, an input terminal block 13 is disposed on one end side 6b, and an output terminal block is disposed on the other end side (not shown). A power supply line from a commercial AC power supply is connected to the input terminal block 13, and a lead wire connected to a lamp socket to which a discharge lamp is mounted is derived from the output terminal block.

  The electrical component is mounted between the input terminal block 13 and the output terminal block of the circuit board 6, and a direct current that converts an alternating voltage into a direct current voltage by a capacitor C1, an inductor L1, and a transistor (not shown). A power supply circuit, an inverter circuit that converts a DC voltage into a high-frequency AC voltage, and a resonance circuit that applies a resonance voltage to the discharge lamp are formed.

  The lighting circuit 4 is disposed on the bottom surface 2 a side of the base case 2 via the first insulating sheet 3. That is, the circuit board 6 is supported by the board support steps 22 provided on the side wall parts 2 b and 2 b, and the notches formed at both ends in the longitudinal direction of the circuit board 6 and both ends of the first insulating sheet 3. The movement of the portion 36 is restricted by the standing piece 11 formed by cutting and raising the bottom surface portion 2a. As shown in FIG. 6, the board supporting step 22 has a height dimension from the bottom face 2 a so that the upper face 6 a of the circuit board 6 is at a height that matches the base 10 d of the through hole 10 of the base case 2. Is set.

  The cover case 5 is made of, for example, a steel plate material, and includes a pair of side plate portions 5c and 5c and a top plate portion 5a that connects the pair of side plate portions 5c and 5c. More specifically, the cover case 5 is formed by bending a single flat plate. The cover case 5 is connected to the rectangular top plate portion 5a and both ends along the longitudinal direction of the top plate portion 5a and the top plate 5a. Are provided with a pair of inclined plate portions 5b and 5b which are inclined inward with respect to each other. The pair of inclined plate portions 5b and 5b are provided with a pair of side plate portions 5c and 5c that are substantially parallel to each other along the longitudinal direction thereof. Further, a pair of end plate portions 5d and 5d formed so as to be substantially orthogonal to the top plate portion 5a are connected to the top plate portion 5a at both ends in the longitudinal direction of the top plate portion 5a. The end plate portions 5d and 5d have a substantially pentagonal planar shape and substantially close the upper side of the openings 14 at both ends in the longitudinal direction of the cover case 5. The side plate portions 5c and 5c are connected to both sides along the longitudinal direction of the top plate portion 5a via the inclined plate portions 5b and 5b.

  Further, the cover case 5 is formed such that its longitudinal direction is located between the input terminal block 13 and the output terminal block disposed on the circuit board 6. Further, when the cover case 5 is fitted on the base case 2, the side plate portions 5 c and 5 c are open so that the open ends 5 ca and 5 ca do not protrude outward from the position of the bottom surface portion 2 a of the base case 2. The height dimensions 5c and 5c (the height dimension of the cover case 5) are set. In addition, the depth (height) of the end plate portion 5d from the top plate is set so that the open end 5da of the end plate portion 5d does not contact the upper surface 6a of the circuit board 6. Further, the interval between the side plate portions 5 c and 5 c is set so that the inner surfaces of the pair of side plate portions 5 c and 5 c can overlap the outer surfaces of the pair of side wall portions 2 b and 2 b of the base case 2. When the cover case 5 has elasticity as a whole and is deformed so as to expand with respect to the pair of side plate portions 5c and 5c, a force is applied to elastically return to the original shape.

  In order to dispose the insulating sheet 3 on the inner surface of the base case 2, the insulating sheet 3 is curved and deformed so that the center portion of the bottom 31 connecting the acute angle portions 35, 35 is convex upward. In this state, the insulating sheet 3 is released from the curved state by setting the acute angle portions 35 and 35 of the insulating sheet 3 along the bottom surface portion 2a of the base case 2 to be close to the corner portions 2c and 2c. Then, due to the elasticity of the insulating sheet 3, the acute angle portions 35, 35 abut against the corner portions 2 c, 2 c of the base case 2, and the bottom portion 31 of the insulating sheet 3 is fixed so as to stick to the bottom surface portion 2 a of the base case 2 (FIG. 6).

  In the fixed state, the outer lower portion of the flange portion 33 abuts on the substrate support step portion 22 which is a projection portion, and the side edge portion 6aa of the electric circuit constituted by the circuit substrate 6 is the flange of the first insulating sheet 3. It is placed on the substrate support step 22 via the portion 33. The substrate support step portion 22 also has a function of a deterring portion that inhibits the inclined portions 34, 34 of the first insulating sheet 3 toward the bottom surface portion 2 a side of the base case 2. The flange portion 33 and the inclined portion 34 function as a fixing mechanism that cooperates with the restraining portion of the base case 2 to fix the bottom portion 31 side to the bottom surface portion 2a side of the base case 2.

  The insulating sheet 3 is elastically bent with the respective distal ends of the pair of vertical wall portions 32a and 32b coming into contact with the inner surface of the cover case 5, and the distal ends of the pair of vertical wall portions 32a and 32b are covered with the cover case. The lighting circuit 4 is covered from above by being overlapped with each other inside the top plate portion 5a.

  FIG. 3 is a schematic explanatory view showing a state in which an insulating sheet 3 is elastically bent by contacting an inner surface of a cover case 5 and covers a lighting circuit 4. In FIG. 5, only the top plate portion 5 a and the pair of inclined plate portions 5 b and 5 b of the cover case 5 are shown for simplification, and when the cover case 5 is actually fitted to the base case 2. The circuit board 6 and the like placed on the flange 33 of the insulating sheet 3 are not shown.

  As shown in FIG. 5 (b), the pair of vertical wall portions 32 a and 32 b of the insulating sheet 3 are formed on the top plate portion 5 a or the inclined plate portion 5 b of the cover case 5 whose front ends are fitted to the base case 2. It is deformed so as to be elastically bent in contact with the inner surface and tilted inward. At this time, since the bent portion 39 is formed on the distal end side of the one vertical wall portion 32a, the bent portion 39 is deformed while being inclined toward the base case 2 side than the distal end portion of the one vertical wall portion 32b. And as shown in FIG.5 (c), the front-end | tip parts mutually overlap so that the front-end | tip part side of one vertical wall part 32a in which the bending part 39 was formed becomes inside inside the top-plate part 5a. Therefore, when the front end portions of the pair of vertical wall portions 32a and 32b are inclined inwardly, they are prevented from interfering with each other so that they cannot be elastically bent into a desired shape. It is also possible to easily realize the overlapping process between the front end portions of the insulating sheet 3.

  Further, in the bent portion 39 of the insulating sheet 3, the front end surface 32aa of one vertical wall portion 32a is parallel to the base end surface 32ab of the vertical wall portion. As a result, as shown in FIG. 5A, the pair of vertical wall portions 32a and 32b of the insulating sheet 3 extend along the pair of side wall portions 2b and 2b of the base case 2, and above the insulating sheet 3 is formed with an opening having substantially the same dimensions as the bottom 31 of the three. For this reason, it becomes possible to easily perform the work of placing the electric circuit on the bottom 31 of the insulating sheet 3.

  In addition, the height of the front-end | tip parts of a pair of vertical wall part 32a, 32b may not be the same, and either one may become high. FIG.5 (d) shows a modification and the front-end | tip part of the other vertical wall part 32b is higher. In the case of this modification, the leading end of the other vertical wall portion 32b enters and overlaps with the leading end portion of the one vertical wall portion 32a and the inner surface of the top plate portion 5a. Moreover, in the modification of FIG.5 (d), the bending part 39 is comprised only by the 1st bending part 39a, and the 2nd bending part 39b is abbreviate | omitted.

  On one end side 5cb, 5cb of each of the pair of side plate portions 5c, 5c and the other end side (not shown), a convex portion (convex toward the base case 2 side) 16 as an engaging portion and a claw hole in the opening 15 are provided. Part 9 is formed. The convex portion 16 is formed by pressing the outer surface 5cc of the side plate portion 5c, for example, by pressing, and protrudes from the inner surface 5cd of the side plate portion 5c to the inside of the cover case 5. The projecting surface is formed in a substantially spherical shape (elliptical shape). The convex part 16 is formed in a so-called dowel structure. The distance from the claw hole portion 9 to the convex portion 16 is set to be long enough to avoid the range of the influence of warping that occurs in the vicinity of the base portion 9a that occurs when the claw portion 9c is bent.

  When connecting the cover case 5 to the base case 2, the pair of side wall portions 2 b and 2 b of the base 2 are sandwiched between the side plate portions 5 c and 5 c of the cover case 5. As a result, the inner surfaces 5cd and 5cd of the side plates 5c and 5c of the cover case 5 overlap the outer surfaces of the pair of side wall portions 2b and 2b of the base case 2. And if the cover case 5 is pressed and moved to the bottom face part 2a side of the base case 2, the convex part 16 of the cover case 5 will ride on the outer surface of the side wall parts 2b and 2b.

  When the pair of side plate portions 5c and 5c overlap the pair of side wall portions 2b and 2b of the base case 2, the convex portion 16 fits into the holes 8 provided in the side wall portions 2b and 2b. At this time, the projecting surface of the convex portion 16 comes into contact with the edge portion of the substantially entire circumference of the hole 8. Thereby, the convex part 16 is firmly fixed to the hole 8 and does not move in the hole 8.

  The claw hole portion 9 is formed by cutting the outer surface 5cc of the side plate portion 5c as shown in FIG. A claw portion 9c is formed in the claw hole portion 9 so as to face the protruding width direction of the side plate portion 5c (a direction orthogonal to the longitudinal direction of the side plate portion 5c). That is, the base portion 9a of the claw portion 9c is located on the open end 5ca side of the side plate portion 5c, and the distal end portion 9b of the claw portion 9c is located on the inclined plate portion 5b side. A substantially U-shaped opening 15 is formed around the claw portion 9c excluding the base portion 9a so that the claw portion 9c can be easily bent.

  In a state where the cover case 5 is connected so as to cover the base case 2, the claw hole portion 9 of the cover case 5 overlaps the through hole 10 of the base case 2. Here, using a jig for bending the claw portion 9c by pressing a portion corresponding to the opening 15 of the claw hole portion 9 toward the inner surface, the claw portion 9c is folded inside the through hole 10 as shown in FIG. It is.

  When the inner surface of the claw portion 9c is folded inward with the base portion 9a and the base portion 10d as axes, the tip end portion 9b enters the inner surface side of the base case 2 and comes into contact with the first insulating sheet 3 via the insulating sheet 3. Then, the upper surface 6a of the circuit board 6 of the lighting circuit 4 is pressed by the inner surface, thereby pressing the side edge portion 6aa.

  According to the present embodiment, the bent portion 39 that is bent inward is formed on the distal end side of the one vertical wall portion 32a of the insulating sheet 3, so that one vertical wall portion 32a is formed inside the top plate portion 3a. The tip parts are overlapped with each other so that the tip part side is on the inside, and desired superposition can be performed, and the circuit board 6 excluding the terminal block 13 and the like is wrapped in the insulating sheet 3, so Insulated. It is possible to provide electrical appliances that ensure insulation. Therefore, when the cover case 5 is fitted, it contacts the inner surface of the cover case 5 and interferes so that the leading end portions of the vertical wall portions 32a and 32b of the insulating sheet 3 are tilted inward so that they are abutted with each other. It is possible to easily realize the process of superimposing the tip portions of the insulating sheet 3 by the automatic assembling apparatus.

  In FIG. 7, the Example of the lighting fixture which concerns on this invention is shown. The luminaire 30 is a luminaire directly attached to a ceiling surface or the like, and a pair of lamp sockets 18 and 18 are provided at both ends of a substantially frame-like fixture body 17. A straight tube fluorescent lamp 19 as a discharge lamp is mounted on the lamp sockets 18 and 18. In addition, the instrument body 17 is provided with a reflecting plate 20 having a substantially dish-shaped cross section facing the fluorescent lamp 19, and the surface of the reflecting plate 20 is a reflecting surface 20a.

  Further, the appliance main body 17 fixes the discharge lamp lighting device 1 shown in FIG. 1 inside the reflection plate 20 through a mounting hole 12 provided in the bottom surface portion 2a of the base case 2 with a screw. When the discharge lamp lighting device 1 is supplied with power, the fluorescent lamp 19 is lit.

  The lighting fixture 30 can easily secure an installation space by reducing the size of the discharge lamp lighting device 1 and can be formed at a low cost by reducing the cost of the discharge lamp lighting device 1.

DESCRIPTION OF SYMBOLS 1 ... Discharge lamp lighting device as an electric equipment, 2 ... Base case, 2a ... Bottom surface part, 2b ... A pair of side wall part, 3 ... Insulating sheet, 4 ... Lighting circuit, 5 ... Cover case, 5a ... Top plate part, 17 DESCRIPTION OF SYMBOLS ... Appliance main body, 19 ... Straight tube | pipe type fluorescent lamp as a light source, 30 ... Lighting fixture, 32a, 32b ... A pair of vertical wall part, 39 ... Bending part.

Claims (3)

A base case configured in a bowl shape by a bottom surface portion and a pair of side wall portions that continue upward from both sides of the bottom surface portion, and a first engagement portion and a restraining portion are formed on the pair of side wall portions;
A cover case having a top plate portion and a pair of side plate portions formed continuously from both sides of the top plate portion, and engaging the pair of side plate portions so as to overlap the side wall portions of the base case;
It is made of an elastic film and has a bottom portion along the inner surface of the bottom surface portion of the base case and a pair of vertical wall portions that continue upward from both sides of the bottom portion along the inner surface of the side wall portion of the base case. A bent portion that bends inward is formed on one end portion side of the wall portion, and each of the end portions of the pair of vertical wall portions is in contact with the inner surface of the cover case to be elastically bent to form a bent portion. Insulating sheets overlapped with each other on the inner side of the top plate so that the front end side is inside;
An electric circuit configured by a circuit board on which electrical components are mounted, the circuit board being disposed on the bottom surface side of the base case via an insulating sheet;
An electrical apparatus comprising:   The bent portion of the insulating sheet includes a first bent portion that is bent inward and a second bent portion that is turned outward so that the distal end surface of the vertical wall portion is parallel to the base end surface of the vertical wall portion. The electrical device according to claim 1. The electrical apparatus according to claim 1 or 2 used as a lighting device;
A light source to be turned on by the lighting device;
A lighting fixture comprising: the lighting device and a fixture main body in which a light source is arranged.

Images