Technical Field
[0001] The present invention relates to a radiator and a lamp for mining use, and in particular
to a lamp radiator and a LED lamp for mining use.
Background of Invention
[0002] In the market of mining lamps, incandescent lamps and energy-saving lamps are commonly
used. Compared with incandescent lamps and energy-saving lamps, LED consumes less
energy and has a longer life time that can be more than 50 thousand hours. Moreover,
LED can operate normally when it is switched on and off at a high frequency. However,
if the energy-saving lamps are switched on and off frequently, the filaments thereof
will become black and then damaged quickly. LED can be encapsulated in a solid body
and LED belongs to a cold light source which is easy to be transported and installed.
In addition, LED has a great vibration tolerance and it can be installed in any tiny
and closed device. Besides, LED will not pollute the environment since it does not
include mercury and other harmful substances.
[0003] Some of the existing mining lamps also use LED as the light source but the radiator
(figures 1 and 2) of the mining lamps is an integrated structure and thus it is difficult
to make a mould of the overall extrusion. Due to lack of spare parts, the internal
liquidity of the radiator is poor. Therefore it is not easy for the hot air to disperse,
leading to poor heat dissipation performance. Furthermore, as the cooling fins of
the radiator are thick, the radiator is heavy and it ends up with waste of materials
and poor heat dissipation.
Summary of Invention
[0004] In response to the shortcomings above, the purpose of this invention is to provide
a lamp radiator with better heat dissipation performance and a lighter weight for
mining lamps so as to solve the problems of poor heat dissipation performance and
heavy weight.
[0005] Another purpose of this invention is to provide an LED lamp for mining use which
includes a lamps radiator with better heat dissipation performance and lighter weight.
[0006] To solve the technical problem above, the present invention makes use of the following
technical solutions.
[0007] Disclosed is a lamp radiator which includes a heat source plate, a fixed ring, a
fixed plate and a plurality of heat dissipation fins. The plurality of heat dissipation
fins form a circular array and there are gaps among the heat dissipation fins. The
upper end of each dissipation fin is fixed to the fixed ring and fixed plate, and
the lower end of each dissipation fin is fixed to the heat source plate and is in
direct contact with the heat source plate.
[0008] Preferably, the lamp radiator also includes a heat pipe. The lower end of the heat
pipe is welded with the heat source plate, and the upper end of the heat pipe is welded
with the heat dissipation fin.
[0009] Preferably, the heat source plate is equipped with a groove for placing the heat
pipe. The lower end of the heat pipe is welded with the groove of the heat source
plate. The heat dissipation fin is equipped with a groove for placing the heat pipe.
The upper end of the heat pipe is welded with the groove of the heat dissipation fin.
[0010] Preferably, the heat pipe is L-shaped. The cross section of the lower end of the
heat pipe is half-round while the cross section of the upper end of the heat pipe
is round.
[0011] Preferably, the number of the heat dissipation fins is N, where 2≤N≤16, and the number
of the heat pipes welded on each heat dissipation fin is M, where 1≤M≤10.
[0012] Preferably, the cross section of the heat dissipation fin is fishbone-shaped, and
there is a gap among each heat dissipation fin.
[0013] Preferably, the cross section of the heat dissipation fin is paper fan-shaped. And
there is a gap among each heat dissipation fin.
[0014] Preferably, the materials for manufacturing the heat dissipation fins are aluminum
or copper, or other alloys such as magnesium alloy, zinc alloy, etc.
[0015] Preferably, the heat pipe is hollow and is filled with liquid and vacuumized (0.1
barometric pressure). The materials for manufacturing the heat pipes are copper or
aluminum. The liquid is water or other freezing medium such as ammonia, Freon, etc.
[0016] Disclosed is also a LED lamp for mining use, which comprises the lamp radiator as
mentioned above.
[0017] Compared with the existing technology, this invention has the following beneficial
effects:
- 1) The lamp radiator and the LED lamp for mining use include multiple heat dissipation
fins. The heat dissipation fins are arranged to form a circular array, and there are
gaps among the heat dissipation fins. This arrangement is beneficial for hot gas circulation
and able to accelerate heat dissipation.
- 2) The lamp radiator and the LED lamp for mining use include multiple heat dissipation
fins. The lamp radiator is not a single component, so the weight of the lamp radiator
and the lamp can be reduced a lot. This design not only reduces the cost, but also
greatly increases the security of the lamp when hanged for use.
- 3) The lamp radiator and the LED lamp for mining use include heat pipes.
The lower end of the heat pipe is welded with the groove of the heat source plate
and the upper end of the heat pipe is welded with the groove of the heat dissipation
fin. Under this design, the heat of the heat source plate can be easily conducted
to the heat dissipation fins, resulting in better heat dissipation.
Description of Figures
[0018]
Figure 1 is the schematic diagram of existing radiator;
Figure 2 is the cross section diagram of figure 1;
Figure 3 is the schematic diagram of the lamp radiator in one embodiment of the present
invention (the screw is not shown in the figure);
Figure 4 is the exploded diagram of figure 3 (the screw is not shown in figure);
Figure 5 is the schematic diagram of the heat pipe;
Figure 6 is the schematic diagram of the heat source plate;
Figure 7 is the schematic diagram of the heat dissipation fin;
Figure 8 is the cross section diagram of multiple heat dissipation fins in figure
4;
Figure 9 is the cross section diagram of a heat dissipation fin in figure 8;
Figure 10 is the schematic diagram of another kind of heat dissipation fin;
Figure 11 is the cross section diagram of the multiple heat dissipation fins of the
lamp radiator in another embodiment;
Figure 12 is the cross section diagram of a heat dissipation fin in figure 11;
Figure 13 is the schematic diagram of a LED lamp for mining use that comprises the
lamp radiator of the present invention.
Detailed Description
[0019] In order to better understand the invention, further description of the invention
will be described below by combination of the appended drawings and specific embodiments.
[0020] Referring to figures 1 to 9, the lamp radiator of the present invention mainly includes
a heat source plate 1 (the heat source plate is equipped with a heat source, such
as LED light source, but it is not shown in figures), a fixed ring 2, a fixed plate
3 and a plurality of heat dissipation fins 4. The plurality of heat dissipation fins
4 form a circular array, and there are gaps among the heat dissipation fins 4. The
upper end of the heat dissipation fin 4 can be fixed on the fixed ring 2 and the fixed
plate 3 through screws (not shown in the figures). The lower end of the heat dissipation
fin 4 can be fixed on the heat source plate 1 through screws (not shown in the figures)
and is in direct contact with heat source plate 1. The lamp radiator has multiple
heat dissipation fins 4. There are gaps among the heat dissipation fins 4. This arrangement
is beneficial for hot gas circulation and able to accelerate the heat dissipation.
The heat dissipation fins 4 not only function for heat dissipation, but also for fixing
the structure. In a specific design, the fixed ring 2 and the fixed plate 3 can be
designed into a single component to attain a fixing effect. The lamp radiator includes
multiple heat dissipation fins 4. The lamp radiator is not a single component, so
the weight of the lamp radiator can be reduced a lot. This design not only reduces
the cost, but also greatly increases the security of the lamp when hanged for use.
[0021] In addition, in order to speed up heat dissipation, the lamp radiator can also include
a heat pipe 5. The lower end of the heat pipe 501 is welded with the heat source plate
1 and the upper end of the heat pipe 502 is welded with the heat dissipation fin 4.
In order to increase the contact area of the heat pipe 5 with the heat source plate
1 and the heat dissipation fin 4, the heat source plate 1 includes a groove 101 for
placing the heat pipe 5. The lower end of the heat pipe 501 is welded with the groove
101 of the heat source plate 1. The heat dissipation fin 4 also includes a groove
401 for placing the heat pipe 5. The upper end of the heat pipe 502 is welded with
the groove 401 of the heat dissipation fin 4. The heat pipe 5, heat source plate 1
and heat dissipation fin 4 can be welded together under high temperature condition
using polymer materials (such as glue, high polymer resin, etc.) or metal welding
agent (such as tin, aluminum, etc.). The heat pipe 5 can be designed into L-shaped.
The cross section of the lower end of the heat pipe 501 can be half-round so as to
match with the groove 101 of the heat source plate 1. The cross section of the heat
pipe 502 can be round so as to match with the groove 401 of the heat dissipation fin
4.
[0022] The number of the heat dissipation fins 4 is N, where 2≤N≤16, and N=8 in this embodiment.
The number of the heat pipes 5 welded on each heat dissipation fin 4 is M, where 1≤M≤10,
and M=1 in this embodiment. The number and size of the heat dissipation fins 4 and
the heat pipes 5 welded on each heat dissipation fin 4 can be designed according to
different needs. For example, radiators with different power can be manufactured by
controlling the length and size of the heat dissipation fins 4.
[0023] The cross section of the heat dissipation fin 4 can be fishbone-shaped (refer to
figures 7, 8 and 9). There are gaps among each fin 402 of the heat dissipation fin
4. In figures 10, 11 and 12, the heat dissipation fin 4 in another embodiment is shown.
In this embodiment, the cross section of heat dissipation fin 4 is paper fan-shaped.
There are gaps among each fin 402' of the heat dissipation fin 4.
[0024] The materials for manufacturing the heat dissipation fins 4 can be aluminum or copper,
or other alloys such as magnesium alloy, zinc alloy, etc. The heat pipe 5 is hollow
and is filled with liquid and vacuumized (0.1 barometric pressure). The liquid is
water or other freezing medium such as ammonia, Freon, etc. The materials for manufacturing
the heat pipe 5 are copper or aluminum. The heat pipe 5 is able to transfer heat rapidly,
and thus the heat can be quickly transferred from the heat source plate 1 to the heat
dissipation fins.
[0025] The lower end of the heat pipe of the lamp radiator is welded with the groove of
heat source plate while the upper end of the heat pipe is welded with the groove of
the heat dissipation fin. Under this design, the heat of the heat source plate can
be easily conducted to the heat dissipation fin, resulting in better heat dissipation.
[0026] Now turning to figure 13, a LED lamp for mining use with the aforesaid lamp radiator
is shown. The LED lamp for mining use has better heat dissipation performance and
lighter weight.
[0027] The lamp radiator and the LED lamp for mining use of the present invention include
multiple heat dissipation fins. The heat dissipation fins are arranged to form circular
array, and there are gaps among the heat dissipation fins. This arrangement is beneficial
for hot gas circulation and able to accelerate heat dissipation. Besides, the lamp
radiator is not a single component, so the weight of the lamp radiator and the lamp
can be reduced a lot. This design not only reduces the cost, but also greatly increases
the security of the lamp hanged for use. In addition, there exists heat pipe which
is able to conduct the heat of the heat source plate to the heat dissipation fin easily,
resulting in better heat dissipation.
[0028] The above describes the preferred embodiments of the present invention, which are
not used for limiting the invention. The skilled in the art may understand that any
modification, equivalent replacement or improvement, etc., made within the spirits
and principles of the present invention shall fall into the scope of the present invention.
1. A lamp radiator comprising a heat source plate, a fixed ring, a fixed plate and a
plurality of heat dissipation fins, wherein said plurality of heat dissipation fins
form a circular array and there are gaps among said heat dissipation fins, an upper
end of each said dissipation fin being fixed to said fixed ring and said fixed plate,
and a lower end of each said dissipation fin being fixed to said heat source plate
and being in direct contact with said heat source plate.
2. The lamp radiator according to claim 1 further comprising a heat pipe, a lower end
of said heat pipe being welded with said heat source plate, and an upper end of said
heat pipe being welded with said heat dissipation fin.
3. The lamp radiator according to claim 2, wherein said heat source plate is equipped
with a groove for placing said heat pipe, said lower end of said heat pipe being welded
with said groove of said heat source plate, said heat dissipation fin being equipped
with a groove for placing the heat pipe, said upper end of said heat pipe being welded
with said groove of said heat dissipation fin.
4. The lamp radiator according to claim 2 or claim 3, wherein said heat pipe is L-shaped,
a cross section of said lower end of said heat pipe being half-round and a cross section
of said upper end of said heat pipe being round.
5. The lamp radiator according to claim 2 or claim 3, wherein a number of said heat dissipation
fins is N, where 2≤N≤16, and a number of said heat pipes welded on each said heat
dissipation fin is M, where 1≤M≤10.
6. The lamp radiator according to claim 2 or claim 3, wherein a cross section of said
heat dissipation fin is fishbone-shaped, and there is a gap among each said heat dissipation
fin.
7. The lamp radiator according to claim 2 or claim 3, wherein a cross section of said
heat dissipation fin is paper fan-shaped and there is a gap among each said heat dissipation
fin.
8. The lamp radiator according to claim 2 or claim 3, wherein materials for manufacturing
said heat dissipation fins are aluminum, copper, magnesium alloy or zinc alloy.
9. The lamp radiator according to claim 2 or claim 3, wherein said heat pipe is hollow
and is filled with liquid and vacuumized, materials for manufacturing said heat pipes
being copper or aluminum, said liquid being water, ammonia or Freon.
10. A LED lamp for mining use comprising said lamp radiator of claims 1 to 9.