WO2018086047A1

WO2018086047A1 - Led desk lamp

Info

Publication number: WO2018086047A1
Application number: PCT/CN2016/105389
Authority: WO
Inventors: 熊敏; 李威
Original assignee: 熊敏; 李威
Priority date: 2016-11-11
Filing date: 2016-11-11
Publication date: 2018-05-17

Abstract

An LED desk lamp comprises a lamp holder (a), an LED light source (b), a control assembly (c), and a heat dissipation supporting arm (d). The heat dissipation supporting arm (d) and the lamp holder (a) are connected in a magnetically-attracted manner. A clamping opening (10) is formed in the top end portion of the heat dissipation supporting arm (d), and the LED light source (b) is clamped in the clamping opening (10). The control assembly (c) is mounted on the bottom end portion of the heat dissipation supporting arm (d). The LED light source (b) comprises an LED lamp plate (20), a spreadlight lens (21), a light shielding hood (22), a lamp bead (23) and a heat conduction block (24). An end surface of the heat conduction block (24) corresponding to the clamping opening (10) is a lamp plate fixing surface (e). The lamp plate fixing surface (e) is distributed by penetrates through the clamping opening (10), and the included angle between the lamp plate fixing surface (e) and a horizontal surface is an acute angle. The LED lamp plate (20) is fixed on the lamp plate fixing surface (e). The spreadlight lens (21) covers on the lamp bead (23). The light shielding hood (22) is mounted on the heat dissipation supporting arm (d) by means of the clamping opening (10). By means of the spreadlight lens (21) and the light shielding hood (22), a light illumination area can be effectively controlled, and the light illumination effect is improved. The heat dissipation effect of the desk lamp can be improved by using the heat dissipation supporting arm (d); and the heat dissipation supporting arm (d) and the lamp holder (a) are connected in a magnetically-attracted manner, which helps a user disassemble, assemble, move and carry the desk lamp.

Description

LED table lamp

Technical field

The utility model relates to the technical field of lighting lamps, in particular to an LED table lamp.

Background technique

LED table lamps are an important type of lighting fixtures, which are widely used in work, study, bedside lighting and so on.

At present, the existing LED desk lamps mainly have the following problems:

1. The illumination mode generally adopts the mode of direct illumination of LED light source + diffuser. This mode has problems such as large illumination area and uncontrollable illumination range, which may cause unnecessary loss of light energy, and LED table lamp is used. The resulting glare, floodlights, etc. can also cause visual disturbances and effects to people who do not need to be illuminated.

2. The existing LED desk lamps are mostly composed of lamp arm, lamp body, base and other components. When the LED desk lamp is placed on the workbench, the base will occupy a large part of the workbench table area, so that the space and area of the workbench It is extremely cramped, and the arm will directly interfere with the user's line of sight, causing visual confusion in front of the eyes.

3. The existing LED table lamp has a complicated structure, large weight and large volume, which causes inconvenience to the disassembly and carrying of the lamp.

4, the existing LED table lamp generally uses the LED light board + heat sink cooling method, because the heat sink is generally installed in the small space behind the back of the light board, and the surrounding parts are mostly plastic materials, the heat accumulated by the radiator is very Difficult to discharge in time, it is easy to affect the lighting effect and service life of the lamp.

Therefore, it is necessary to propose an improvement scheme for the existing LED desk lamp to maximize the practical performance of the desk lamp.

Utility model content

In view of the deficiencies of the above prior art, the object of the present invention is to provide an LED table lamp which has a simple and compact structure, a fast heating rate, a uniform heat distribution, and a health care function.

In order to achieve the above object, the utility model adopts the following technical solutions:

An LED table lamp comprising a lamp holder, an LED light source, a control assembly and an inner hollow heat dissipation support arm, wherein the heat dissipation support arm is distributed perpendicular to a top surface of the lamp holder and the bottom end surface is magnetically coupled to the lamp holder, An embedding port is defined in a peripheral wall of the top end portion of the heat dissipating support arm, the LED light source is embedded in the embedding port, and the control assembly is mounted on the bottom end portion of the heat dissipating support arm and electrically connected to the LED light source;

The LED light source includes an LED light board, a polarizing lens, a hood for diverging light emitted through the polarizing lens in a direction obliquely downward, an LED lamp bead soldered on the LED lamp board, and an LED lamp bead mounted on the heat dissipation support arm. a heat conducting block in the top end portion and which is in contact with the inner wall of the heat dissipating support arm. The end surface of the heat conducting block corresponding to the embedding port is a fixing surface of the lamp board, and the fixing surface of the lamp board is distributed through the embedding port and is The angle between the horizontal planes is an acute angle, and the LED light board is laid and fixed on the fixing surface of the light board. The polarizing lens cover is disposed on the LED lamp bead and located outside the heat dissipation support arm, and the hood is passed through the clamping position. The port is mounted on the heat dissipation support arm.

Preferably, the hood includes a U-shaped seat portion that is inserted into the heat dissipation support arm through the insertion port and sleeved on the heat conduction block, and two opposite side walls of the U-shaped seat portion are outwardly opposite to the heat dissipation support arm Two triangular cover plate sides formed after extension and a top of the cover plate formed between the sides of the two triangular cover plates and connecting the sides of the two triangular cover plates, the top of the cover plate being perpendicular to the LED light plate distributed.

Preferably, the heat dissipating support arm comprises a support arm of a tubular structure integrally formed by an aluminum profile and having a rectangular cross section, a cover covering the top port of the support arm, and a bottom port covering the support arm. An inner sealing seat is formed on one of the side walls of the top end of the support arm, and the control assembly is mounted on the bottom end of the support arm, and the support arm is further provided with a A magnet block magnetically attracted to the lamp holder, the magnet block being pressed onto the seal seat by the control assembly.

Preferably, the lamp socket comprises a base which is hollow inside and has a shaft hole on the top surface, and an iron weight arranged in the base, the sealing seat is disposed in the shaft hole of the base, and the magnet The block is magnetically attracted to the iron weight.

Preferably, the control assembly includes a fixing bracket fixed in a bottom end portion of the support arm by a sealing seat, a main control board mounted on the fixing frame and electrically connected to the LED light source, and a bottom end portion attached to the supporting arm a touch control panel on one of the side walls and electrically connected to the main control board, and a power interface row embedded on the sidewall of the bottom end of the support arm and opposite to the touch control panel, the power interface is arranged with the main The control board is electrically connected, and the magnet block is pressed onto the sealing seat by a fixing frame.

Preferably, the fixing frame comprises a first fixing plate having a "U" shape in a horizontal section and a second fixing plate having a "U" shape in a horizontal section and integrally assembled with the first fixing plate, the first fixing plate a plurality of latching openings are defined in the upper and lower sides of the two symmetrical side walls. The two symmetric sidewalls of the second fixing plate are provided with a plurality of latching projections that are engaged in the latching slots; The main control board is clamped between the first fixing plate and the second fixing plate.

Preferably, the power interface row includes at least one USB interface and at least one DC interface.

Due to the adoption of the above scheme, the utility model can effectively control the light irradiation area by using the polarizing lens and the hood, and enhance the illumination effect of the table lamp; the heat dissipation support arm can enhance the heat dissipation effect of the table lamp, and the magnetic connection between the lamp holder and the lamp holder is adopted. It is convenient for the user to disassemble, move and carry the lamp. The utility model has the advantages of simple and compact structure, convenient disassembly and assembly, convenient use, heat dissipation effect and illumination effect, and has strong practical value and market promotion value.

DRAWINGS

Figure 1 is a schematic view of the structure assembly of the embodiment of the present invention (1);

Figure 2 is a schematic view of the structure assembly of the embodiment of the present invention (2);

3 is a schematic exploded view of the structure of the embodiment of the present invention;

4 is a schematic exploded view showing the structure of the lamp holder and the control assembly according to the embodiment of the present invention;

5 is a schematic exploded view showing the structure of an LED light source according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a polarizing lens according to an embodiment of the present invention.

detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various different ways as defined and covered by the claims.

As shown in FIG. 1 to FIG. 5, an LED desk lamp provided by the embodiment includes a lamp holder a, an LED light source b, a control assembly c and an inner hollow heat dissipation support arm d. The heat dissipation support arm d is perpendicular to The top surface of the socket a is distributed and the bottom end surface is magnetically coupled to the socket a. A recess 10 is formed in the peripheral wall of the top end of the heat dissipation support arm d, and the LED light source b is embedded in the socket 10, and The control assembly c is mounted on the bottom end portion of the heat dissipation support arm d and electrically connected to the LED light source b. The LED light source b includes an LED light panel 20, a polarizing lens 21, and a light beam for ejecting the polarized lens 21 a hood 22 for diverging in the downward direction, an LED lamp bead 23 soldered to the LED lamp panel 20, and a heat conducting block 24 mounted in the top end portion of the heat dissipating support arm d and attached to the inner wall of the heat dissipating support arm d, the heat conducting block The end surface corresponding to the embedding port 10 is the lamp plate fixing surface e, and the lamp plate fixing surface e is distributed through the embedding port 10 and the angle between the horizontal plane and the horizontal plane is an acute angle (for example, 40 degrees), the LED panel 30 is laid and fixed on the fixing surface e of the lamp board, and the polarizing lens 21 is disposed on the LED lamp bead 23 and located outside the heat dissipating support arm d. The hood 22 is mounted on the heat dissipation support arm d through the embedding port 10.

Therefore, the inner wall and the outer wall of the polarizing lens 21 have different curved surfaces to interfere with the direction in which the LED lamp bead 23 emits light, so that the light source light can emit a certain deviation (which is limited by the specific curved surface structure of the polarizing lens 21, such as As shown in FIG. 6, the light-emitting surface of the polarizing lens 21 can be set to an approximate elliptical shape, and the light-incident surface can adopt a concave surface structure with irregular curvature, and the illuminating surface of the polarizing lens 21 can be disposed at a tangential plane according to a distance. Maximize the avoidance of glare and floodlights, enhance the brightness of the illuminated area, and improve the utilization of light energy from the light source. At the same time, the use of the tilting arrangement of the fixed surface e of the lamp plate enables the light to be illuminated in a diagonally downward direction. On the table top of the workbench, and under the action of the hood 22 to the light, the unnecessary scattered light can be effectively shielded. Only the illumination effect of the light is not visible (ie, the illumination range is effectively defined); in addition, since the heat dissipation support arm d is vertically (or vertically) placed on the socket a, not only the center of gravity of the entire lamp is placed on the heat dissipation support arm The bottom end of d is advantageous for maintaining the smoothness of the lamp placement, and the mechanical basis provided for reducing the area of the lamp holder a; and since the LED light source b is disposed on the peripheral wall of the heat dissipation support arm d, the heat dissipation support arm can be avoided. d interferes with the area of illumination of the light. Of course, the space area of the heat dissipation support arm d itself can also provide a good heat dissipation foundation for the heating element of the desk lamp (ie, equivalent to a heat sink), and since the heat dissipation support arm d is magnetically attracted to the lamp holder a, it is convenient. Adjust the illumination direction of the desk lamp, disassemble, move, and carry the components.

In order to enable the light emitted through the polarizing lens 21 to form a controllable illumination area on the table surface and to shield the excess scattered light, the hood 22 of the embodiment includes the heat sink support through the insertion port. The U-shaped seat portion 221 of the arm d and sleeved on the heat-conducting block 24 and the two triangular cover plate side portions 222 formed by the two opposite side walls of the U-shaped seat portion 221 extending outward relative to the heat-dissipating support arm d And a cover top 223 formed between the two triangular cover side portions 222 and connecting the two triangular cover plate sides 222 together, the cover plate top 223 is vertically distributed with the LED light plate 20. In this way, the upper portion of the polarizing lens 21 and the front upper space can be effectively blocked by the top 223 of the cover plate. The left and right sides of the polarizing lens 21 can be blocked by the triangular cover side portion 222, and the heat dissipation support arm d can block the function. Next, the light emitted through the polarizing lens 21 can be irradiated obliquely downward and finally form a certain irradiation area on the table top.

In order to enhance the heat dissipation performance of the entire table lamp, ensure the illumination effect of the table lamp and prolong the service life thereof, the heat dissipation support arm d of the embodiment includes a tubular structure body which is integrally stretched and formed by a high thermal conductivity aluminum profile and has a rectangular horizontal section. a support arm 30, a cover 31 covering the top port of the support arm 30, and a cover 32 covering the bottom port of the support arm 31. The insertion opening 10 is formed on one of the side walls of the top end of the support arm 30. On the upper side (such as the front side wall), the control assembly d is mounted on the bottom end of the support arm 30, and a magnet block 33 for magnetically attracting the lamp holder a is mounted in the support arm 30, and the magnet block 33 is mounted on the support arm 30. The control assembly d is pressed against the seal seat 32. Thereby, the heat generated by each heat generating component can be obtained by the close contact of the heat conducting block 24 with the support arm 30 and the close contact of the control assembly d with the support arm 30. The amount is directly transmitted to the support arm 30, and the convection with the outside air is realized by the material characteristics of the support arm 30 and the large surface area and space area of the structure, thereby greatly enhancing the heat dissipation performance of the entire lamp; meanwhile, using the magnet block 33 can quickly disassemble the heat dissipating arm d and the lamp holder a and adjust the relative position after assembly.

In order to optimize the structure of the entire lamp, the lamp holder a of the present embodiment includes a base 40 which is hollow inside and has a shaft hole on the top surface, and an iron weight 41 mounted in the base 40. The cover 32 is seated on the base. The shaft block 40 has a shaft hole, and the magnet block 33 is magnetically attracted to the iron weight 41. Since the center of gravity of the entire lamp is at the bottom end of the heat dissipation support arm d, the size of the base 40 only needs to be slightly larger than the size of the cover 32. The iron weight 41 can ensure that the lamp holder a can be smoothly placed. And the magnetic attraction effect of the iron weight 41 and the magnet block 33 can further reduce the center of gravity of the entire lamp, thereby reducing the occupation of the lamp holder a and enhancing the smooth placement of the lamp. Sex. At the same time, since the seat 32 is disposed on the base 40 and adopts a magnetic suction connection, the user can rotate the heat-dissipating support arm d to rotate the LED light source b according to its own needs to realize the adjustment of the illumination direction. In addition, in order to avoid movement of the entire lamp due to the movement of the socket a on a table top such as a table top, an anti-slip mat may be provided on the bottom surface of the base 40.

In order to optimize the practical performance of the entire table lamp, the control assembly c of the present embodiment includes a fixing frame fixed to the bottom end portion of the support arm 30 by the sealing seat 32, a main control mounted on the fixing frame and electrically connected to the LED light source b. The board 50, the touch control board 51 attached to one of the side walls of the bottom end portion of the support arm 30 and electrically connected to the main control board 50, and the side wall fitted to the bottom end portion of the support arm 30 and touched The control board 51 is oppositely distributed to the power interface row, the power interface row is electrically connected to the main control board 51, and the magnet block 33 is press-fitted to the mount 32 by the mount. The touch control panel 51 can be used to realize the touch switch control, the brightness control and the like of the desk lamp, and the power supply interface row can be connected to the external power source to ensure the normal power supply of the desk lamp, and the main control board 50 is mounted on the support through the fixing frame. In the arm 30, the package and the heat dissipation effect can be ensured. At the same time, since the control assembly c is mounted on the bottom end portion of the heat dissipation support arm d, the center of gravity of the lamp can be ensured at the bottom end portion of the heat dissipation support arm d.

In order to facilitate DIY-type disassembly and maintenance of the components of the desk lamp, the fixing bracket of the embodiment includes a first fixing plate 52 having a U-shaped horizontal section and a U-shaped horizontal section and the first fixing plate 52. The two fixing plates 53 are integrally assembled on the two symmetrical side walls of the first fixing plate 52, and a plurality of card opening ports 521 are opened in parallel in the up and down direction, and correspondingly, two of the second fixing plates 53 are respectively The symmetrical sidewalls are provided with a plurality of latching projections 531 that are engaged in the latching openings 521; and the main control board 50 is clamped between the first fixing plate 52 and the second fixing plate 51.

In addition, in order to facilitate the connection between the desk lamp and the different external power sources, the power interface row of the embodiment may be composed of at least one USB interface 54 and at least one DC interface 55, etc., depending on the specific situation.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the patent of the present invention. Any equivalent structure or equivalent process transformation using the specification and the drawings of the present invention may be directly or indirectly applied to Other related technical fields are equally included in the scope of patent protection of the present invention.

Claims

An LED table lamp, comprising: a lamp holder, an LED light source, a control assembly and an inner hollow heat dissipation support arm, wherein the heat dissipation support arm is distributed perpendicular to a top surface of the lamp holder and the bottom end surface is magnetically coupled to the lamp holder Connected to the peripheral wall of the top end portion of the heat dissipating support arm, a socket is formed, the LED light source is embedded in the embedding port, and the control assembly is mounted on the bottom end of the heat dissipating support arm and electrically connected to the LED light source connection;

The LED light source includes an LED light board, a polarizing lens, a hood for diverging light emitted through the polarizing lens in a direction obliquely downward, an LED lamp bead soldered on the LED lamp board, and an LED lamp bead mounted on the heat dissipation support arm. a heat conducting block in the top end portion and which is in contact with the inner wall of the heat dissipating support arm. The end surface of the heat conducting block corresponding to the embedding port is a fixing surface of the lamp board, and the fixing surface of the lamp board is distributed through the embedding port and is The angle between the horizontal planes is an acute angle, and the LED light board is laid and fixed on the fixing surface of the light board. The polarizing lens cover is disposed on the LED lamp bead and located outside the heat dissipation support arm, and the hood is passed through the clamping position. The port is mounted on the heat dissipation support arm.
The LED table lamp of claim 1 , wherein the hood comprises a U-shaped seat portion that is inserted into the heat dissipation support arm through the insertion opening and is sleeved on the heat conduction block, and the U-shaped seat portion Two triangular cover plate sides formed by outwardly extending the two opposite side walls with respect to the heat dissipation support arm, and a cover formed between the sides of the two triangular cover plates and connecting the sides of the two triangular cover plates At the top of the board, the top of the cover plate is vertically distributed with the LED light board.
The LED table lamp according to claim 1 or 2, wherein the heat dissipating support arm comprises a support arm of a tubular structure integrally formed by an aluminum profile and having a rectangular cross section, and is covered by the support arm. a cover in the top port and a seat cover in the bottom port of the support arm, the nesting opening is formed on one of the side walls of the top end of the support arm, and the control assembly is mounted on the support arm The bottom end portion is further provided with a magnet block for magnetically engaging with the lamp holder, and the magnet block is pressed onto the sealing seat by the control assembly.
The LED table lamp according to claim 3, wherein the lamp holder comprises a base which is hollow inside and has a shaft hole on the top surface, and an iron weight arranged in the base, the seat block The seat is disposed in the shaft hole of the base, and the magnet block is magnetically attracted to the iron weight.
The LED table lamp of claim 3, wherein the control assembly comprises a fixing frame fixed to the bottom end of the support arm by a sealing seat, mounted on the fixing frame and electrically connected to the LED light source. a main control board, a touch control board attached to one of the side walls of the bottom end of the support arm and electrically connected to the main control board, and a side wall embedded on the bottom end of the support arm and opposite to the touch control panel The distributed power interface row is electrically connected to the main control board, and the magnet block is pressed onto the sealing seat by the fixing frame.
The LED table lamp according to claim 5, wherein the fixing frame comprises a first fixing plate having a U-shaped horizontal section and a U-shaped horizontal section and is assembled opposite to the first fixing plate. An integrated second fixing plate, the two symmetrical side walls of the first fixing plate are provided with a plurality of card slot openings in parallel in the up and down direction, and the two symmetrical sidewalls of the second fixing plate are provided with a plurality of The card position of the latching position is engaged with the card slot; the main control board is clamped between the first fixing board and the second fixing board.
A LED desk lamp as claimed in claim 5, wherein said power interface bank comprises at least one USB interface and at least one DC interface.