CN219243384U - Desk lamp with good heat radiation structure - Google Patents

Abstract

The utility model provides a desk lamp with good heat dissipation structure, comprising: the LED lamp comprises a base, a lamp cap, a light-emitting element, a heat dissipation base and a first heat dissipation strip; the base is connected with the lamp cap; the lamp cap comprises a head part and an arm part, wherein the head part is connected with the arm part, a first end of the arm part along the length direction of the arm part is connected with the base, a second end of the arm part along the length direction of the arm part is connected with the head part, the head part is in a cylinder shape with a bottom, and one end of the head part is open; the head part is internally provided with a first mounting cavity, the arm part is internally provided with a second mounting cavity, and the first mounting cavity is communicated with the second mounting cavity; the light-emitting element is arranged in the first mounting cavity; the heat dissipation seat is arranged in the first mounting cavity; the radiating seat is arranged on the end surface of the light-emitting element far away from the opening and is connected with the light-emitting element; the first heat dissipation strip is arranged in the second mounting cavity along the length direction of the arm part, and is connected with the heat dissipation seat. The desk lamp has the characteristics of good heat dissipation performance, good dimming experience and the like.

Description

Desk lamp with good heat radiation structure

Technical Field

The utility model relates to the technical field of lamps, in particular to a desk lamp with a good heat dissipation structure.

Background

The LED desk lamp can produce heat at the during operation, needs in time dispel the heat, otherwise can influence the life of LED desk lamp, and the heat radiation structure of current heat dissipation LED desk lamp often dispels the heat at the great sheetmetal of lamp holder setting, and heat radiation structure is poor, and when removing lamp holder adjustment illumination angle, because lamp holder temperature is higher, direct touch lamp holder is scalder, and user experience is poor.

Disclosure of Invention

The utility model aims to provide a desk lamp with a good heat dissipation structure.

In order to achieve the above object, the present utility model provides a desk lamp with a good heat dissipation structure, comprising: the LED lamp comprises a base, a lamp cap, a light-emitting element, a heat dissipation base and a first heat dissipation strip; the base is connected with the lamp cap; the lamp cap comprises a head and an arm part, wherein the head is connected with the arm part, a first end of the arm part along the length direction of the arm part is connected with the base, and a second end of the arm part along the length direction of the arm part is connected with the head part; the head part is in a cylinder shape with a bottom, and one end of the head part is open; the head part is internally provided with a first mounting cavity, the arm part is internally provided with a second mounting cavity, and the first mounting cavity is communicated with the second mounting cavity; the light-emitting element is arranged in the first mounting cavity; the heat dissipation seat is arranged in the first mounting cavity; the radiating seat is arranged on the end surface of the light-emitting element far away from the opening and is connected with the light-emitting element; the first heat dissipation strip is arranged in the second mounting cavity along the length direction of the arm part, and is connected with the heat dissipation seat.

According to the scheme, the heat dissipation structure is used for dissipating heat by arranging the first heat dissipation strips to be matched with the heat dissipation base, heat generated by the light-emitting element can be conducted to the first heat dissipation strips, the heat is further conducted to the outside through the first heat dissipation strips, and the heat dissipation performance is enhanced.

Further, an opening is formed below the arm, and the first heat dissipation strip is located at the opening.

Thus, the heat dissipation speed can be increased.

The further scheme is that the opening is provided with a heat dissipation fin, and the heat dissipation fin is connected with the first heat dissipation strip.

From this, it can be seen that the heat dissipation speed can be further increased.

Further, the arm is provided with a control panel above the opening.

The heat-insulating cavity is arranged between the heat-radiating seat and the inner wall of the head.

It follows that the temperature of the outer surface of the head can be reduced.

The further scheme is that the desk lamp further comprises a second heat dissipation strip, the second heat dissipation strip is perpendicular to the first heat dissipation strip, the first heat dissipation strip is connected to the second heat dissipation strip along the first end of the length direction of the second heat dissipation strip, and the second heat dissipation strip is connected to the heat dissipation seat along the second end of the length direction of the second heat dissipation strip.

Further scheme is, the desk lamp includes lamp arm subassembly, and the base is connected to lamp arm subassembly, and the first end of arm is connected to lamp arm subassembly.

Further, the heat sink is disk-shaped.

Further, the outer surface of the arm part is provided with a control panel.

The desk lamp further comprises a fixing seat and a lens module, wherein the fixing seat and the lens module are arranged in the first mounting cavity; the inner wall of the head part is provided with a raised annular groove, the fixing seat is provided with a first clamping part, and the first clamping part is abutted against the annular groove; the lens module is provided with a second clamping part which is clamped with the inner wall of the head part; the end face of the light-emitting element, which is close to the opening, is connected with the fixing seat, and the end face of the fixing seat, which is far away from the light-emitting element, is connected with the lens module.

The lens module comprises an optical diffusion sheet and a secondary optical reflector; the end face, far away from the opening, of the optical diffusion sheet is connected with the fixing seat, and the end face, close to the opening, of the optical diffusion sheet is connected with the secondary optical reflector; the secondary optical reflector is connected with the inner wall of the lamp holder.

Drawings

Fig. 1 is a schematic structural diagram of a desk lamp with a good heat dissipation structure.

Fig. 2 is a schematic structural diagram of a lamp cap of the desk lamp with a good heat dissipation structure.

Fig. 3 is a schematic view of a desk lamp with a good heat dissipation structure with its inner structure removed.

Fig. 4 is an exploded view of a lamp base of the desk lamp with a good heat dissipation structure.

Fig. 5 is a cross-sectional view of a lamp head of a desk lamp with a good heat dissipation structure according to the present utility model.

The utility model is further described below with reference to the drawings and examples.

Detailed Description

According to the utility model, the heat dissipation seat is matched with the first heat dissipation strip to dissipate heat, so that a good heat dissipation effect can be realized.

Referring to fig. 1, the desk lamp with good heat dissipation structure of the present embodiment includes abase plate 11, abase 12, a lamp arm assembly, alamp cap 15, alight emitting element 16, aheat dissipation base 17, a firstheat dissipation strip 18, a secondheat dissipation strip 19, afixing base 20, a control panel 21, alens module 22, anillumination sensor 23,heat dissipation fins 24, and amounting base 25. The lamp arm assembly comprises afirst lamp arm 13 and asecond lamp arm 14, wherein thehead 151 is connected with thearm 152, and thearm 152 is connected with thesecond lamp arm 14; thelens module 22 includes anoptical diffusion sheet 221 and a secondaryoptical mirror 222; thelight emitting element 16 is an LED chip.

Thebase 12 is provided on thebottom plate 11. The first end of thefirst light arm 13 is hinged to thebase 12, the first end of thesecond light arm 14 is hinged to the second end of thefirst light arm 13, the second end of thesecond light arm 14 is connected to thelamp cap 15, the first end and the second end of thefirst light arm 13 are two ends in the length direction of thefirst light arm 13, and the first end and the second end of thesecond light arm 14 are two ends in the length direction of thesecond light arm 14. It will be appreciated that in other embodiments, thefirst lamp arm 13 and thesecond lamp arm 14 may not be provided, where the first end of thearm 152 in thelamp cap 15 is directly connected to thebase 12, the second end of thearm 152 is connected to thehead 151, the first end and the second end of thearm 152 are both ends along the length direction of the arm, and the connection manner of thearm 152 and thebase 12 may be hinged.

Thehead 151 is in a bottomed tubular shape, and one end of thehead 151 is open, i.e., the opening 31. Thehead 151 is provided with afirst mounting cavity 1551, thelight emitting element 16 and theheat dissipation base 17 are both arranged in thefirst mounting cavity 1551, and theheat dissipation base 17 is arranged on the end face, far away from the opening 31, of thelight emitting element 16 and is connected with thelight emitting element 16. Theheat sink 17 has a disk shape so as to be matched with thefirst mounting cavity 1551. Theheat insulation cavity 32 is arranged between theheat dissipation seat 17 and the inner wall of the head, and the temperature on the inner wall of thehead 151 can be reduced when the light-emittingelement 16 works due to the arrangement of theheat insulation cavity 32, so that a user can conveniently adjust the illumination angle by rotating thelamp cap 15.

Thearm 152 has asecond mounting cavity 1552 therein, and the firstheat sink strip 18 is disposed in thesecond mounting cavity 1552 along a length direction of thearm 152.

Thehead 151 is connected to thearm 152, thefirst installation cavity 1551 is communicated with thesecond installation cavity 1552, thefirst installation cavity 1551 is a space surrounded by a shell of thehead 151, and thesecond installation cavity 1552 is a space surrounded by a shell of thewall 152. Thereby, thefirst heat sink 18 may be directly connected with theheat sink 17. In this embodiment, the second heatdissipating strip 19 is perpendicular to the firstheat dissipating strip 18, a first end of the secondheat dissipating strip 19 along the length direction of the secondheat dissipating strip 19 is connected to the firstheat dissipating strip 18, and a second end along the length direction of the secondheat dissipating strip 19 is connected to theheat dissipating seat 17.

It should be noted that, theheat dissipation base 17, the firstheat dissipation strip 18, and the secondheat dissipation strip 19 may be integrally formed by stamping, and all use the same metal material. Theheat dissipation seat 17, the firstheat dissipation strip 18 and the secondheat dissipation strip 19 can be all discrete components, theheat dissipation seat 17 is connected with the secondheat dissipation strip 19, and the secondheat dissipation strip 19 is connected with the firstheat dissipation strip 18 to form a heat dissipation structure.

The end face of thearm 152 facing the opening is provided with anillumination sensor 23.

Thearm 152 is provided with anopening 34 along a lower portion thereof, and the firstheat sink strip 18 is located at the opening 34. Theopenings 34 may enable heat from the firstheat sink strip 18 to be conducted to the external environment, thereby increasing the heat dissipation rate. The opening 34 is further provided with aheat dissipation fin 24, one end of theheat dissipation fin 24 is connected to the firstheat dissipation strip 18, and the other end is a free end, and the free end is exposed to the external environment. Since the free ends of theheat dissipation fins 24 are located in the external environment, the heat of the firstheat dissipation strips 18 can be conducted out to the outside through the heat dissipation fins 24, and the heat dissipation speed is increased. A control panel 21 is further arranged above theopening 34, and illumination parameters such as brightness, color temperature and the like are adjusted through the control panel 21. It will be appreciated that "above" and "below" may be defined in terms of the actual placement of the arms.

Thefixing base 20 and thelens module 22 are disposed in thefirst mounting cavity 1551. The inner wall of thehead 151 is provided with a raisedring groove 1553, thefixing seat 20 is connected with afirst clamping part 201, and thefirst clamping part 201 abuts against thering groove 1553. Thelens module 22 is provided with asecond clamping portion 223, and thesecond clamping portion 223 is clamped with the inner wall of thehead 151. The end face of the light-emittingelement 16, which is close to the opening, is arranged in themounting seat 25, themounting seat 25 is connected with thefixing seat 20, and the end face of thefixing seat 20, which is far away from the light-emittingelement 16, is connected with thelens module 22. Thelens module 22 includes anoptical diffusion sheet 221 and a secondaryoptical mirror 222, wherein an end surface of theoptical diffusion sheet 221 far from the opening is connected with thefixing base 20, an end surface of theoptical diffusion sheet 221 near the opening is connected with the secondaryoptical mirror 222, and the secondaryoptical mirror 222 is connected with an inner wall of thehead 151.

According to the utility model, the first radiating strip is arranged to be matched with the radiating seat for radiating, the heat generated by the light-emitting element can be transmitted to the first radiating strip, the heat is further transmitted to the outside through the first radiating strip, the radiating performance is enhanced, and the temperature of the head is lower when the head is moved to adjust the illumination angle due to the fact that the first radiating strip is arranged in the arm, so that the user experience is better.

Claims (10)

1. The desk lamp with the good heat dissipation structure is characterized by comprising a base, a lamp cap, a light-emitting element, a heat dissipation base and a first heat dissipation strip, wherein the base is connected with the lamp cap;

the lamp holder comprises a head part and an arm part, wherein the head part is connected with the arm part, a first end of the arm part along the length direction of the arm part is connected with the base, and a second end of the arm part along the length direction of the arm part is connected with the head part; the head is in a cylinder shape with a bottom, one end of the head is open, a first mounting cavity is arranged in the head, a second mounting cavity is arranged in the arm, and the first mounting cavity is communicated with the second mounting cavity;

the light-emitting element and the heat dissipation seat are both arranged in the first mounting cavity, and the heat dissipation seat is arranged on the end surface of the light-emitting element far away from the opening and is connected with the light-emitting element;

the first heat dissipation strip is arranged in the second mounting cavity along the length direction of the arm part, and is connected with the heat dissipation seat.

2. The desk lamp with good heat dissipation structure as recited in claim 1, wherein:

an opening is arranged below the arm part, and the first heat dissipation strip is positioned at the opening.

3. The desk lamp with good heat dissipation structure as recited in claim 2, wherein:

the opening is provided with a heat dissipation fin, and the heat dissipation fin is connected with the first heat dissipation strip.

4. The desk lamp with good heat dissipation structure as recited in claim 2, wherein:

the arm is provided with a control panel above the opening.

5. The desk lamp with good heat dissipation structure as recited in claim 1, wherein:

a heat insulation cavity is arranged between the heat dissipation seat and the inner wall of the head.

6. The desk lamp with good heat dissipation structure as recited in claim 1, wherein:

the desk lamp further comprises a second heat dissipation strip, the second heat dissipation strip is perpendicular to the first heat dissipation strip, the second heat dissipation strip is connected with the first heat dissipation strip along the first end of the second heat dissipation strip in the length direction, and the second heat dissipation strip is connected with the heat dissipation seat along the second end of the second heat dissipation strip in the length direction.

7. The desk lamp with good heat dissipation structure as recited in claim 1, wherein:

the desk lamp comprises a lamp arm assembly, wherein the lamp arm assembly is connected with the base, and the lamp arm assembly is connected with the first end of the arm.

8. The desk lamp with good heat dissipation structure as recited in claim 1, wherein:

the heat dissipation seat is disc-shaped.

9. The desk lamp with good heat dissipation structure as recited in claim 1, wherein:

the desk lamp further comprises a fixing seat and a lens module, wherein the fixing seat and the lens module are arranged in the first mounting cavity;

the inner wall of the head part is provided with a raised annular groove, the fixing seat is provided with a first clamping part, and the first clamping part is abutted against the annular groove;

the lens module is provided with a second clamping part which is clamped with the inner wall of the head part;

the end face, close to the opening, of the light-emitting element is connected with the fixing base, and the end face, far away from the light-emitting element, of the fixing base is connected with the lens module.

10. The desk lamp with good heat dissipation structure as recited in claim 9, wherein:

the lens module comprises an optical diffusion sheet and a secondary optical reflector;

the end face, far away from the opening, of the optical diffusion sheet is connected with the fixing seat, and the end face, close to the opening, of the optical diffusion sheet is connected with the secondary optical reflector;

the secondary optical reflector is connected with the inner wall of the lamp cap.

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