JP4760117B2 - LIGHT EMITTING DEVICE AND LIGHTING APPARATUS HAVING THE LIGHT EMITTING DEVICE - Google Patents

Description

  The present invention relates to a light emitting device having a light source such as an LED (Light Emitting Diode) on a printed circuit board, and a lighting fixture including the light emitting device.

Conventionally, there has been known a light emitting device including a printed circuit board having an LED serving as a light source and a cover member erected on the printed circuit board so as to cover the side of the LED, as shown in FIGS. ), A light emitting device 101 in which a cover member 104 functions as a lens holder portion that holds a lens 105 disposed in front of an LED 121 is known (see, for example, Patent Document 1).
Japanese Patent No. 3580386

  In the light emitting device 101 shown in the figure, in order to ensure electrical insulation of the printed circuit board 102, an insulating sheet (not shown) is provided between the back surface of the printed circuit board 102 and a mounting surface 106 to which the light emitting device 101 is attached. It was necessary to arrange etc. Further, in order to secure an electrical insulation distance between the conductive portion on the front surface of the printed circuit board 102 and the conductive portion of the mounting surface 106, the size of the printed circuit board 102 itself is increased, or the conductive portion of the printed circuit board 102 is There is a problem that the size of the printed circuit board 102 becomes large because it needs to be covered with an insulating material. Further, it is necessary to use an insulating material such as a resin for the screw S used for fixing the printed circuit board 102 to the mounting surface 106.

  Further, in the light emitting device 101, when some tension is applied to the lead wire R directly attached to the printed circuit board 102 with the solder H, the solder H may be detached from the printed circuit board 102 if the soldering is not appropriate. .

  Further, in the light emitting device 101, since the printed board 102 is exposed, there is a possibility that electronic parts on the printed board 102 may be damaged by static electricity when the light emitting device 101 is handled during assembly work or the like.

  The present invention has been made in view of the above points, and can reduce the size of the apparatus and improve the insulation between the apparatus and the member to which the apparatus is attached, and the light emitting apparatus. It aims at providing the lighting fixture provided with.

  In order to achieve the above object, a first aspect of the present invention is a printed circuit board having a light source on the front surface and a heat sink on the rear surface, a plate portion on which the printed circuit board is mounted, and the printed circuit board mounted thereon. Insulating printed circuit board receptacle for storing the printed circuit board in a state in which the side wall part is erected on the edge of the plate part so as to cover the side of the plate part and the back surface of the heat sink is in contact with the plate part A light emitting device comprising: a member; and an insulating cover member disposed so as to cover the front of the printed board and having an opening for light emission.

  According to a second aspect of the present invention, in the light emitting device according to the first aspect, the side wall portion of the printed board receiving member includes a flange portion that is formed to protrude from a side surface of the side wall portion, and the flange portion includes the flange portion. A through-hole penetrating from the front surface to the back surface of the portion is formed, and the cover member is formed to project toward the through-hole at a position facing the through-hole in a state of being disposed in front of the printed circuit board receiving member. In the state where the protrusion is inserted into the through hole, the vicinity of the tip of the protrusion is welded and fixed to the back surface of the flange.

  According to a third aspect of the present invention, in the light emitting device according to the first aspect, the cover member is disposed outside the side wall portion of the printed circuit board receiving member, and an outer wall portion is in contact with a mounting surface to which the light emitting device is attached. An inner wall portion disposed on the inner side of the side wall portion of the printed circuit board receiving member and abutted against the printed circuit board, wherein the outer wall portion presses the outer wall portion against the mounting surface and covers the mounting surface. The inner wall portion is configured to press the printed circuit board against the printed circuit board receiving member in a state where the outer wall section is fixed to the mounting surface. It is characterized by being pinched between.

  According to a fourth aspect of the present invention, in the light emitting device according to the first aspect, the cover member includes an inner wall portion disposed inside a side wall portion of the printed circuit board receiving member, and the light emitting device is attached to the inner wall portion. The distance between the printed circuit board and the end face of the inner wall facing the printed circuit board in a state where the light emitting device is mounted on the mounting surface is formed to be narrower than the diameter of the wiring connected to the printed circuit board, With the light emitting device attached to the attachment surface, the wiring connected to the printed circuit board is pressed against the printed circuit board at the end surface of the inner wall portion, and the wiring is sandwiched between the printed circuit board. To do.

  According to a fifth aspect of the present invention, in the light emitting device according to the first aspect, the lens further includes a lens disposed in front of the light source, and the cover member is in contact with an outer periphery on the front end side of the lens. And a lens holder portion having a second holding portion in contact with the outer periphery on the rear end side of the lens, wherein the lens is in contact with both the first holding portion and the second holding portion. It is positioned and held by the lens holder part.

  A sixth aspect of the present invention is a lighting apparatus comprising the light emitting device according to any one of the first to fifth aspects.

  According to the light emitting device of claim 1, the printed circuit board is accommodated in the insulating printed circuit board receiving member, the back surface of the printed circuit board is covered with the plate portion of the printed circuit board receiving member, and the side of the printed circuit board is the plate portion. Since it is covered with the side wall portion erected on the edge of the printed circuit board, the creeping distance between the conductive portion of the member disposed on the back side of the printed circuit board receiving member and the conductive portion formed on the printed circuit board is extended. be able to. For this reason, even if the space distance between the printed circuit board and the member disposed on the back side of the printed circuit board receiving member is short, the insulation of the printed circuit board can be improved, and the size of the light emitting device can be made compact.

  In addition to covering the back and sides of the printed circuit board with an insulating printed circuit board receiving member, the front of the printed circuit board is covered with an insulating cover member, further improving the insulation of the printed circuit board. It is possible to effectively prevent damage to electronic components on the printed circuit board due to static electricity. For this reason, when the user handles the light-emitting device, the user does not need to pay attention to damage to electronic components due to static electricity, and the light-emitting device can be easily handled.

  According to the light emitting device of the second aspect, the same effect as that of the first aspect can be obtained, and the vicinity of the front end of the protrusion of the cover member is welded to the back surface of the collar portion of the printed board receiving member to form the collar portion. Since the cover member and the printed board receiving member are integrated, the light emitting device can be attached simply by fixing either the cover member or the printed board receiving member to the mounting surface to which the light emitting device is attached. Can be attached to a surface. For this reason, for example, attachment of the light-emitting device to a lighting fixture etc. becomes easy.

  According to the light emitting device of the third aspect, the same effect as in the first aspect can be obtained, and the inner wall portion of the cover member can be printed on the printed circuit board while the outer wall portion of the cover member is fixed to the mounting surface. Since the printed board is sandwiched between the printed board receiving member by pressing against the printed board receiving member, the printed board receiving member and the printed board are fixed only by fixing the cover member to the mounting surface. For this reason, for example, attachment of the light-emitting device to a lighting fixture etc. becomes easy.

  Further, since the printed board is pressed against the printed board receiving member by the inner wall portion of the cover member, the adhesion between the heat sink of the printed board and the printed board receiving member is improved. For this reason, the heat which generate | occur | produced in the printed circuit board can be thermally radiated efficiently, and the long-term reliability of the electronic component on a printed circuit board can be ensured.

  According to the light emitting device of claim 4, the same effect as in claim 1 can be obtained, and the inner wall portion of the cover member is a wiring connected to the printed circuit board with the light emitting device attached to the mounting surface. Is pressed against the printed circuit board and the wiring is sandwiched between the printed circuit board and the wiring connected to the printed circuit board can be prevented from coming off from the printed circuit board even when tension is applied to the printed circuit board. Can improve the reliability.

  According to the light emitting device of the fifth aspect, in addition to the same effect as the first aspect, the lens includes a first holding portion that is in contact with the outer periphery of the front end portion side of the lens, and a rear end portion side of the lens. Since the lens is positioned while being in contact with both of the second holding portions that are in contact with the outer periphery of the lens and held by the lens holder portion, the lens can be disposed at an optically accurate position.

  According to the luminaire described in claim 6, since the light emitting device according to any one of claims 1 to 5 capable of being made compact is provided, the installation space for the light emitting device can be reduced and the luminaire itself can be made compact. Can be achieved. Moreover, since the insulating property of the light emitting device is high and there is no need to consider the insulating property between the light emitting device and the member to which the light emitting device is attached, the handling of the instrument becomes easy.

  Hereinafter, a light emitting device according to a first embodiment of the present invention will be described with reference to FIGS. 1 (a) and 1 (b) and FIGS. 2 (a) and 2 (b). The light emitting device 1 is a device used for, for example, a lighting fixture, and includes a printed circuit board 2 having an LED 21 serving as a light source, a printed circuit board receiving member 3, and a cover member 4. In this specification, a direction from the LED 21 toward the opening 40 of the cover member 4 is referred to as a front a, and a direction from the opening 40 toward the LED 21 is referred to as a rear b. The front a side surface of each member is referred to as a front surface, and the rear b side surface of each member is referred to as a back surface.

  The printed circuit board 2 has an LED 21 serving as a light source on the front surface, and a heat radiating plate 22 formed of metal or the like on the back surface (see FIGS. 2A and 2B). The printed circuit board receiving member 3 includes a plate part 31 on which the printed circuit board 2 is placed and a side wall part 32 erected on the edge of the plate part 31 so as to cover the side of the placed printed circuit board 2. The printed circuit board 2 is accommodated in a state where the plate portion 31 and the back surface of the heat radiating plate 22 are in contact with each other. The printed board receiving member 3 is formed of an insulating material.

  The cover member 4 is disposed so as to cover the front of the printed circuit board 2, and includes an opening 40 for emitting light and an outer wall section 42 disposed outside the side wall section 32 of the printed circuit board receiving member 3. The cover member 4 is also made of an insulating material. The light emitting device 1 includes a lens 5 disposed in front a of the LED 21, and the cover member 4 includes a cylindrical lens holder portion 41 that holds the lens 5.

  The lens 5 has a lens flange 51 near the front end. The lens holder portion 41 has a mounting surface 41a on which the lens flange portion 51 is mounted at a front end portion thereof, and a flange portion 41b formed to protrude from the front end portion toward the front a. The lens 5 is fixed to the lens holder portion 41 by fitting the front surface 5a of the lens into the flange portion 41b in a state where the lens flange portion 51 is placed on the placement surface 41a of the lens holder portion 41. It is preferable to use a material with low light transmittance for such a lens holder portion 41. By using a material having low light transmittance for the lens holder portion 41, it is possible to prevent light that cannot be controlled by the lens 5 from leaking from the lens holder portion 41 and irradiating light in a direction other than the target. . In FIG. 2A, the collar portion 41b is omitted.

  The insulating material forming the printed circuit board receiving member 3 and the cover member 4 is not particularly limited, but it is preferable to use a resin having high strength for the cover member 4. By using high strength resin for the cover member 4, the strength of the light emitting device 1 can be increased. On the other hand, it is preferable to use silicone rubber or the like having good thermal conductivity for the plate portion 31 of the printed board receiving member 3. By using silicone rubber or the like for the plate portion 31, heat generated in the printed circuit board 2 can be efficiently radiated to the back side of the printed circuit board receiving member 3.

  In addition, a lead wire (wiring) insertion notch 38 is formed in the side wall 32 of the printed board receiving member 3, and the notch 48 is formed in the cover member 4 at a position facing the notch 38. Has been. Lead wires for supplying electric power to the printed circuit board 2 are inserted through the notches 38 and 48. Further, the cover member 4 is formed with a notch 49 penetrating from the front surface to the back surface of the cover member 4, and the cover member 4 is attached to the mounting surface (a member for supporting the light emitting device 1) through the notch 49. The light emitting device 1 is fixed to the mounting surface 6 by screwing the light emitting device 1 to the surface 6). In the following, the portions formed on the cover member 4 for attaching the cover member 4 to the attachment surface 6 are collectively referred to as a fixing portion, and will be described using the same reference numerals as the cutout portions 49. The shape of the fixing portion 49 is not particularly limited as long as it is a shape suitable for attachment to the attachment surface 6, and the fixing method may be a method other than screwing. In FIGS. 2A and 2B, FIGS. 3A and 3B described later, and FIG. 6, the fixing portion 49 is omitted.

  The light emitting device 1 stores the printed circuit board 2 in the printed circuit board receiving member 3 with the plate portion 31 and the back surface of the heat radiating plate 22 in contact with each other, and covers the front a of the printed circuit board 2 with the cover member 4 in which the lens 5 is fitted. It arrange | positions so that it may attach to a lighting fixture etc. by fixing the notch part 49 to the attachment surface 6 via a screw | thread. In the present embodiment and the following embodiments, the screw may not be formed of an insulating material.

  According to the light emitting device 1 of the present embodiment, the printed circuit board 2 is accommodated in the insulating printed circuit board receiving member 3, and the back surface of the printed circuit board 2 is covered with the plate portion 31 of the printed circuit board receiving member 3. Since the side is covered with the side wall portion 32 erected on the edge portion of the plate portion 31, as shown in FIG. 2B, the member disposed on the back side of the printed board receiving member 3 Extending the creeping distance (the shortest distance along the surface of the side wall 32 between the two conductive portions P1 and P2) L1 between the conductive portion P1 and the conductive portion P2 formed on the printed circuit board 2 Can do. For this reason, even if the spatial distance L2 between the printed circuit board 2 and the printed circuit board receiving member 3 is short, the insulating property of the printed circuit board 2 can be improved, and the size of the light emitting device 1 is made compact. be able to.

  In addition to covering the back and sides of the printed circuit board 2 with the insulating printed circuit board receiving member 3, the front of the printed circuit board 2 is covered with the insulating cover member 4. Insulation can be further enhanced, and damage to electronic components on the printed circuit board 2 due to static electricity can be more effectively prevented. For this reason, when the user handles the light emitting device 1, it is not necessary to pay attention to the damage of the electronic components due to static electricity, and the light emitting device 1 can be easily handled.

  Next, a light emitting device according to a second embodiment of the present invention will be described with reference to FIGS. The light emitting device 1 according to the present embodiment is different from the first embodiment in that the printed board receiving member 3 and the cover member 4 are integrated.

  The side wall portion 32 of the printed board receiving member 3 includes a flange portion 33 that is formed to protrude from the outer surface of the side wall portion 32. A through-hole 34 that penetrates from the front surface 33a to the back surface 33b is formed in the flange portion 33. On the other hand, the cover member 4 has a projecting portion 44 formed to project toward the through hole 34 at a position facing the through hole 34 in a state of being disposed in front of the printed circuit board receiving member 3.

  Next, a method for integrating the printed board receiving member 3 and the cover member 4 will be described. First, as shown in FIG. 3A, in a state where the printed circuit board 2 is housed in the printed circuit board receiving member 3, the cover member 4 is disposed so as to cover the front of the printed circuit board 2, and the protrusion 44 is formed in the through hole. 34. Next, in the state of FIG. 3A, the vicinity of the tip of the projection 44 is heated, and the vicinity of the tip of the projection 44 is welded to the back surface 33b of the flange 33 as shown in FIG.

  According to the light emitting device 1 of the present embodiment, the same effect as in the first aspect can be obtained, and the vicinity of the tip of the protrusion 44 of the cover member 4 is welded to the back surface 33b of the flange portion 33 of the printed board receiving member 3. Since the cover member 4 and the printed circuit board receiving member 3 are integrated with each other, the light emission can be achieved simply by fixing either the cover member 4 or the printed circuit board receiving member 3 to the mounting surface. The device 1 can be mounted on the mounting surface. For this reason, attachment of the light-emitting device 1 to a lighting fixture etc. becomes easy.

  Next, a light emitting device according to a third embodiment of the present invention will be described with reference to FIG. The light emitting device 1 of the present embodiment is different from the first embodiment in that the cover member 4 includes an inner wall portion 43 in addition to the outer wall portion 42.

  The cover member 4 is disposed outside the side wall portion 32 of the printed circuit board receiving member 3 and is in contact with the mounting surface 6. The cover member 4 is disposed inside the side wall portion 32 of the printed circuit board receiving member 3 and is disposed on the printed circuit board 2. And an inner wall portion 43 to be abutted. The outer wall portion 42 includes a fixing portion 49 that fixes the cover member 4 to the mounting surface 6 while pressing the outer wall portion 42 against the mounting surface 6. In the present embodiment, the fixing portion 49 includes a contact portion 42a formed by bending the distal end portion of the outer wall portion 42 so as to be substantially parallel to the mounting surface 6, and a screw inserted from the front surface to the back surface of the corresponding contact portion 42a. The insertion hole 42b for a stop is included.

  The height of the inner wall 43 is slightly higher than the height of the outer wall 42 minus the thickness of the printed board 2 including the heat sink 22 and the thickness of the plate 31 of the printed board receiving member 3. The inner wall 43 is formed between the printed board 2 and the printed board receiving member 3 by pressing the printed board 2 against the printed board receiving member 3 in a state where the outer wall 42 is fixed to the mounting surface 6. Hold with.

  According to the light emitting device 1 of the present embodiment, the same effects as those of the first embodiment can be obtained, and the inner wall portion 43 of the cover member 4 is in a state where the outer wall portion 42 of the cover member 4 is fixed to the mounting surface 6. Then, the printed board 2 is pressed against the printed board receiving member 3 so that the printed board 2 is sandwiched between the printed board receiving member 3, so that the printed board receiving member can be obtained simply by fixing the cover member 4 to the mounting surface 6. 3 and the printed circuit board 2 are fixed. For this reason, for example, it becomes easy to attach the apparatus to a lighting fixture or the like.

  Further, since the printed board 2 is pressed against the printed board receiving member 3 by the inner wall portion 43 of the cover member 4, the adhesion between the heat radiation plate 22 of the printed board 2 and the printed board receiving member 3 is improved. For this reason, the heat generated in the printed circuit board 2 can be efficiently radiated, and the long-term reliability of the electronic components on the printed circuit board 2 can be ensured.

  Next, a light emitting device according to a fourth embodiment of the present invention will be described with reference to FIG. The light emitting device 1 of the present embodiment is different from the third embodiment in that the lead wire R can be sandwiched between the inner wall portion 43 of the cover member 4 and the printed board 2.

  The cover member 4 includes an inner wall portion 43 disposed inside the side wall portion 32 of the printed circuit board receiving member 3. The inner wall portion 43 is a lead wire connected to the printed circuit board 2 such that the interval between the printed circuit board 2 and the end surface 43 a of the inner wall section 43 facing the printed circuit board 2 in a state where the light emitting device 1 is mounted on the mounting surface 6. It is formed to be narrower than the diameter of R. Further, a groove 43b is formed in the end surface 43a of the inner wall portion 43 in accordance with the shape of the lead wire R so that the covering of the lead wire R is not damaged when the lead wire R is held.

  With the light emitting device 1 attached to the attachment surface 6, the inner wall portion 43 presses the lead wire R connected to the printed circuit board 2 at the end surface 43 a of the inner wall portion 43 against the printed circuit board 2 to print the lead wire R. It is sandwiched between the substrate 2. That is, the lead wire R is fixed by the inner wall 43 and the printed board 2 at the same time as the cover member 4 is fixed to the mounting surface 6.

  According to the light emitting device 1 of the present embodiment, the same effects as those of the first embodiment can be obtained, and the inner wall 43 of the cover member 4 is a printed circuit board with the light emitting device 1 attached to the attachment surface 6. 2, the lead wire R connected to the printed circuit board 2 is pressed against the printed circuit board 2, so that the lead wire R connected to the printed circuit board 2 is tensioned. It is possible to prevent the lead wire R from being detached from the printed board 2 and to improve the reliability of the apparatus.

  Next, a light-emitting device according to a fifth embodiment of the present invention will be described with reference to FIGS. The light emitting device 1 of this embodiment is different from that of the first embodiment in that the lens holder portion 41 can hold not only the vicinity of the front end portion of the lens 5 but also the vicinity of the rear end portion of the lens.

  The lens holder portion 41 includes a first holding portion 45 that contacts the outer periphery near the front end portion of the lens 5 and a second holding portion 46 that contacts the outer periphery near the rear end portion of the lens 5. The first holding portion 45 includes a placement surface 41 a on which the lens flange 51 is placed, and an opening 40 a having a diameter substantially the same as the outer diameter near the front end portion of the lens 5 excluding the lens flange 51. Yes. Further, the second holding portion 46 includes an opening 40 b having the same diameter as the outer diameter near the rear end portion of the lens 5. The openings 40a and 40b are formed so as to have a shape corresponding to the shape of the lens 5, and are each formed in a circular shape centered on the optical axis O. The lens 5 is positioned in contact with both the first holding portion 45 and the second holding portion 46 and is held by the lens holder portion 41. The lens 5 is positioned by the first holding part 45 and the second holding part 46, and displacement in the lateral direction (the radial direction of the lens 5) c is prevented at two points on the front end side and the rear end side of the lens 5. By doing so, it is possible to prevent the mounting angle of the lens 5 from shifting.

  The first holding unit 45 and the second holding unit 46 are arranged such that the first holding unit 45 is on the front end side of the lens 5 and the second holding unit 46 is on the rear end side of the lens 5. However, in order to prevent the displacement of the mounting angle of the lens 5 more effectively, it is desirable that the first holding part 45 and the second holding part 46 be separated as much as possible, as in this embodiment. In addition, the vicinity of the front end portion and the rear end portion of the lens 5 is desirable. In addition, the first holding part 45 and the second holding part 46 only need to be able to prevent the positional shift in the lateral direction c of the lens 5 at each position, and a plurality of the protrusions formed from the inner wall surface of the lens holder part 41 are formed. The lens 5 may be held by the rib.

  According to the light emitting device 1 of the present embodiment, the same effects as those of the first embodiment can be obtained, and the lens 5 includes the first holding unit 45 that contacts the outer periphery near the front end of the lens 5 and the lens 5. The lens 5 is positioned in contact with both of the second holding portions 46 that are in contact with the outer periphery in the vicinity of the rear end portion, and is held by the lens holder portion 41, so that the lens 5 can be disposed at an optically accurate position. .

  FIG. 7 shows an example in which the light-emitting device 1 according to the first to fifth embodiments is incorporated in a spotlight (lighting fixture) 10. The spotlight 10 includes a power supply circuit for causing the light emitting device 1 to emit light. According to such a spotlight 10, since the light emitting device 1 that can be made compact is provided, the installation space of the light emitting device 1 can be reduced and the spotlight 10 itself can be made compact. Moreover, since the insulating property of the light emitting device 1 is high and there is no need to consider the insulating property between the light emitting device 1 and the member to which the light emitting device 1 is attached, the spotlight 10 can be easily handled.

  The present invention is not limited to the configurations of the various embodiments described above, and various modifications can be made. For example, you may make it incorporate the light-emitting device 1 of this invention in lighting fixtures other than the spotlight 10, or apparatuses other than a lighting fixture.

(A) is a perspective view of the light-emitting device which concerns on the 1st Embodiment of this invention, (b) is the same exploded perspective view. (A) is the sectional view on the AA line in FIG. 1, (b) is sectional drawing of the side wall part vicinity of the printed circuit board receiving member of the light-emitting device. (A) is sectional drawing before the cover member fixation of the side wall part vicinity of the printed circuit board receiving member of the light-emitting device which concerns on the 2nd Embodiment of this invention, (b) is sectional drawing after fixing the cover member. Sectional drawing of the side wall part vicinity of the printed circuit board receiving member of the light-emitting device which concerns on the 3rd Embodiment of this invention. Sectional drawing of the side wall part vicinity of the printed circuit board receiving member of the light-emitting device which concerns on the 4th Embodiment of this invention. (A) is sectional drawing of the light-emitting device which concerns on the 5th Embodiment of this invention, (b) is sectional drawing of the light-emitting device in the state which removed the lens. The perspective view of the lighting fixture provided with the light-emitting device which concerns on this invention. (A) is a perspective view of the light-emitting device which concerns on a prior art example, (b) is the BB sectional drawing of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light-emitting device 2 Printed circuit board 3 Printed circuit board receiving member 4 Cover member 5 Lens 6 Mounting surface 21 LED
22 heat sink 31 plate part 32 side wall part 33 collar part 34 through-hole 41 lens holder part 42 outer wall part 43 inner wall part 44 protrusion part

Claims (6)

  A printed circuit board having a light source on the front surface and a heat sink on the back surface, a plate portion on which the printed circuit board is placed, and an edge of the plate portion so as to cover the side of the placed printed circuit board An insulating printed circuit board receiving member that houses the printed circuit board in a state where the plate part and the rear surface of the heat sink are in contact with each other, and is arranged so as to cover the front of the printed circuit board. And an insulating cover member having an opening for light emission. The side wall portion of the printed circuit board receiving member includes a flange portion that is formed to project from the side surface of the side wall portion,
In the collar part, a through-hole penetrating from the front surface to the rear surface of the collar part is formed,
The cover member has a protrusion formed to protrude toward the through hole at a position facing the through hole in a state of being disposed in front of the printed circuit board receiving member.
2. The light emitting device according to claim 1, wherein the protruding portion is fixed by being welded to a back surface of the flange portion in a state where the protruding portion is inserted into the through hole. The cover member is disposed outside the side wall portion of the printed circuit board receiving member and is in contact with a mounting surface to which the light emitting device is attached, and is disposed inside the side wall portion of the printed circuit board receiving member. And an inner wall portion that is in contact with
The outer wall portion includes a fixing portion that fixes the cover member to the mounting surface while pressing the outer wall portion against the mounting surface.
The inner wall portion is configured to press the printed circuit board against the printed circuit board receiving member and sandwich the printed circuit board between the printed circuit board receiving member in a state where the outer wall section is fixed to the mounting surface. The light emitting device according to claim 1. The cover member includes an inner wall portion disposed on an inner side than a side wall portion of the printed circuit board receiving member,
The inner wall portion has a distance between the printed circuit board and the end surface of the inner wall facing the printed circuit board in a state where the light emitting apparatus is mounted on a mounting surface to which the light emitting apparatus is mounted. Formed to be narrower than the diameter,
With the light emitting device attached to the attachment surface, the wiring connected to the printed circuit board is pressed against the printed circuit board at the end surface of the inner wall portion, and the wiring is sandwiched between the printed circuit board. The light emitting device according to claim 1. A lens disposed in front of the light source;
The cover member includes a first holder that contacts the outer periphery on the front end side of the lens, and a lens holder portion that has a second holder that contacts the outer periphery on the rear end side of the lens,
The light-emitting device according to claim 1, wherein the lens is positioned in contact with both the first holding unit and the second holding unit, and is held by the lens holder unit. A lighting fixture comprising the light emitting device according to any one of claims 1 to 5.

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