Wall lamp

1. A wall lamp attached to both a structure main body and a wall surface covering the structure main body, the wall lamp comprising:

a light source;

a light source holder configured to be attached to the wall surface and hold the light source; and

an attachment portion configured to be attached to the light source holder and the structure main body, wherein

the attachment portion is formed of a material having a melting point lower than a melting point of a material forming the light source holder, and

the attachment portion includes a wire accommodating portion accommodating a part of a power supply wire that supplies electric power to the light source.

2. The wall lamp according to claim 1 , further comprising:

a substrate configured to be fixed to the light source holder and on which the light source is mounted, wherein

the light source holder is formed with an opening communicating with the wire accommodating portion, and

the opening is closed by the substrate on a side opposite to a wire accommodating portion side.

3. The wall lamp according to claim 2 , wherein

the substrate includes a metal layer formed separately from a wiring layer, and

the metal layer covers at least a part of the opening.

4. The wall lamp according to claim 2 , wherein

the power supply wire accommodated in the wire accommodating portion is connected to the substrate through the opening.

5. The wall lamp according to claim 2 , further comprising:

a first sheet member having a heat dissipation property configured to be sandwiched and fixed between the substrate and the light source holder.

6. The wall lamp according to claim 2 , further comprising:

a retainer configured to be formed of a material having a melting point higher than a melting point of a material forming the attachment portion, wherein

the substrate is sandwiched and fixed between the retainer and the light source holder.

7. The wall lamp according to claim 6 , further comprising:

a second sheet member having a heat dissipation property configured to be sandwiched and fixed between the substrate and the retainer.

8. The wall lamp according to claim 1 , further comprising:

a cover member having a light transmitting property configured to cover the light source.

9. The wall lamp according to claim 1 , wherein

the attachment portion includes a flange portion that projects toward an outer periphery of the light source holder and comes into surface contact with the light source holder.

10. The wall lamp according to claim 9 , wherein

the attachment portion further includes an extending portion extending from the flange portion toward the outer periphery of the light source holder.

11. A wall lamp attached to a wall surface, the wall lamp comprising:

a substrate on which a light source is mounted;

a light source holder configured to hold the substrate; and

a power supply wire configured to be connected to the substrate and supply electric power to the light source,

wherein

the light source holder includes:

a bottom portion to which the substrate is fixed and that is parallel to the substrate,

a sidewall that is erected on an outer edge of the bottom portion and forms a recess portion together with the bottom portion, and

a wall surface fixing portion that fixes the light source holder to the wall surface on an opposite side of the bottom portion across the sidewall, and

the light source mounted on the substrate is accommodated in the recess portion,

an opening for inserting the power supply wire toward the substrate is formed in the bottom portion.

12. The wall lamp according to claim 11 , wherein

the light source holder further includes a flange portion that projects radially outward from an end portion of the sidewall opposite to a bottom portion side, and

the flange portion comes into surface contact with the wall surface.

13. The wall lamp according to claim 12 , wherein

the wall surface fixing portion is provided in the flange portion.

14. The wall lamp according to claim 11 , wherein

the opening is closed by the substrate.

15. The wall lamp according to claim 11 , further comprising:

a cover member having a light transmitting property configured to cover the light source, wherein

a light source facing portion of the cover member facing the light source is formed parallel to the bottom portion.

16. The wall lamp according to claim 15 , wherein

the light source facing portion is accommodated in the recess portion.

17. The wall lamp according to claim 11 , wherein

a sheet member having a heat dissipation property is arranged between the bottom portion and the substrate.