CN110440205B - Lamp fitting - Google Patents
Lamp fitting Download PDFInfo
- Publication number
- CN110440205B CN110440205B CN201910634308.4A CN201910634308A CN110440205B CN 110440205 B CN110440205 B CN 110440205B CN 201910634308 A CN201910634308 A CN 201910634308A CN 110440205 B CN110440205 B CN 110440205B
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- Prior art keywords
- cavity
- air
- radiator
- fan blade
- heat dissipation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S9/00—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
- F21S9/02—Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
- F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention belongs to the technical field of lighting equipment, and particularly relates to a lamp which comprises a shell, a light source component, a radiator, a fan blade and a driving mechanism, wherein an installation cavity, a wind cavity and a heat dissipation cavity are sequentially arranged in the shell, the driving mechanism is installed in the installation cavity, the fan blade is installed in the wind cavity, the driving end of the driving mechanism extends into the wind cavity and is connected with the fan blade, the radiator is installed in the heat dissipation cavity, the light source component is installed on the radiator, an air inlet is formed in the inner wall of the wind cavity, a first air outlet used for communicating the wind cavity with the heat dissipation cavity is further formed in the inner wall of the wind cavity, and a second air outlet used for discharging heat is formed in the inner wall of the heat dissipation cavity. The fan blade, the radiator and the driving mechanism are respectively arranged in different cavities, the heat load of the radiator on the fan blade and the driving mechanism is small, in addition, the fan blade is adopted to rotate airflow formed in the air cavity, the heat on the radiator is taken away by the airflow, the radiating effect of the radiator is increased, the backflow of hot air is also avoided, and the service life of the lamp is prolonged.
Description
Technical Field
The invention belongs to the technical field of lighting equipment, and particularly relates to a lamp.
Background
The heat radiation structure of general similar lamps and lanterns adopts the inclosed mode of upper and lower casing, and the light source subassembly passes through heat-transfer device, gives the shell with heat-conduction, and the shell radiates the heat to the air in and reaches the heat dissipation purpose again, and this heat dissipation scheme shortcoming is that the shell is bulky, and heat radiating area is big, and the radiating effect silts under the windless condition, and the radiating effect is not good, in addition, still causes electrical apparatus chamber temperature to rise easily, shortens the life-span of electrical part. The fan blade heat dissipation mode is generally an air draft type, and the fan blade and the radiator are often assembled together and exposed in the air, but the heat dissipation mode needs a large fan blade rotating speed to achieve a good heat dissipation effect, and the problem of high noise of the fan blade exists.
Disclosure of Invention
The invention aims to provide a lamp, and aims to solve the technical problem that the service life of the lamp is short due to poor heat dissipation effect in the lamp in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a lamp, includes casing, light source subassembly, radiator, fan blade and actuating mechanism, be equipped with installation cavity, wind chamber and heat dissipation chamber in the casing in proper order, actuating mechanism install in the installation cavity, the fan blade install in the wind chamber, actuating mechanism's drive end stretches into in the wind chamber and with the fan blade is connected and is used for the drive the fan blade rotates, the radiator install in the heat dissipation chamber, the light source subassembly install in on the radiator, be equipped with the air intake with external intercommunication on the inner wall in wind chamber, first air outlet has still been seted up on the inner wall in wind chamber, first air outlet is used for the intercommunication wind chamber with the heat dissipation chamber, offer on the inner wall in heat dissipation chamber and be used for the second air outlet with heat extraction
Optionally, the fan blade is a centrifugal fan blade, the air inlet is located on one side of the centrifugal fan blade, and the first air outlet is located on the other side of the centrifugal fan blade.
Optionally, a partition plate is arranged in the air cavity, the partition plate divides the air cavity into an upper half air cavity and a lower half air cavity, the centrifugal fan blade is located in the lower half air cavity, a third air outlet used for being communicated with the upper half air cavity is formed in the partition plate, and the first air outlet is formed in the upper half air cavity and is close to the inner wall of the heat dissipation cavity.
Optionally, the lower semi-wind cavity includes a first channel, a second channel, and a circular cavity adapted to the shape of the centrifugal fan blade, the first channel is located at a lower portion of one side of the circular cavity and communicates the circular cavity with the first wind outlet, the second channel is located at an upper portion of the other side of the circular cavity, and the second channel penetrates through the partition plate to form a third wind outlet and is used for communicating the circular cavity with the upper semi-wind cavity.
Optionally, the heat sink includes a heat dissipation plate and a plurality of fins, each of the fins is uniformly arranged at intervals, each of the fins is vertically arranged on a side surface of the heat dissipation plate, the first air outlet is located above each of the fins, and the second air outlet is located below the fin.
Optionally, the number of the first air outlets is several, and the first air outlets are uniformly spaced in a direction perpendicular to the fins.
Optionally, the lamp further includes a thermal bulb for detecting a temperature of the heat sink, and the thermal bulb is mounted on the heat sink.
Optionally, the driving mechanism includes a motor and a driving assembly, the light source assembly, the thermal bulb and the motor are all electrically connected to the driving assembly, and an output shaft of the motor is connected to the fan blade.
Optionally, a mounting hole communicated with the air cavity is formed in the inner wall of the mounting cavity, and an output shaft of the motor is hermetically mounted in the mounting hole and extends into the air cavity to be connected with the fan blade.
Optionally, a handle for a person to hold is arranged on the outer side of the shell, the thermal bulb is communicated with the driving assembly through a wire, and the wire is arranged in the handle.
One or more technical schemes in the lamp provided by the invention at least have one of the following technical effects: the light source subassembly is used for sending illumination light, and the heat transfer that the light source subassembly produced is for the radiator, during the heat dissipation of radiator, start actuating mechanism, actuating mechanism drive fan blade rotates to inhale the wind intracavity and form the air current with outside air from the air inlet, the air current enters into the heat dissipation intracavity from first air outlet, the air current is taken away the heat on the radiator in the heat dissipation intracavity and is discharged from the second air outlet, and then reach radiating effect. According to the lamp, the fan blade, the radiator and the driving mechanism are respectively arranged in different cavities, the heat load of the radiator on the fan blade and the driving mechanism is small, and the service life of the lamp is long; in addition, the fan blades are adopted to form airflow in the air cavity, and the airflow takes away heat on the radiator in an air blowing mode, so that the radiating effect of the radiator can be greatly increased, the backflow of high-temperature airflow can be avoided, and the service life of the lamp is further prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a cut-away view of a lamp provided in an embodiment of the present invention.
Fig. 2 is an exploded view of a lamp according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10-shell 11-installation cavity 12-wind cavity
13-radiating cavity 14-handle 15-cover plate
16-first half-shell 17-second half-shell 20-light source assembly
21 lamp panel 22 transparent cover 23 lamp holder
30-radiator 31-radiating plate 32-fin
40-fan blade 50-driving mechanism 51-motor
52-drive assembly 60-thermal bulb 111-mounting hole
121-inlet opening 122-first outlet opening 123-partition plate
124-upper half wind cavity 125-lower half wind cavity 131-second air outlet
161-first grid plate 171-second grid plate 521-controller
522, battery 1231, third air outlet 1241 and first channel
1242-second passage 1243-circular lumen.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-2 are exemplary and intended to be illustrative of the invention and should not be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-2, in an embodiment of the present invention, a lamp is provided, including a housing 10, a light source assembly 20, a heat sink 30, a fan blade 40, and a driving mechanism 50, where an installation cavity 11, an air cavity 12, and a heat dissipation cavity 13 are sequentially disposed in the housing 10, the driving mechanism 50 is mounted in the installation cavity 11, the fan blade 40 is mounted in the air cavity 12, a driving end of the driving mechanism 50 extends into the air cavity 12, is connected to the fan blade 40, and is used for driving the fan blade 40 to rotate, the heat sink 30 is mounted in the heat dissipation cavity 13, the light source assembly 20 is mounted on the heat sink 30, an air inlet 121 communicated with the outside is disposed on an inner wall of the air cavity 12, a first air outlet 122 is further disposed on an inner wall of the air cavity 12, the first air outlet 122 is used for communicating the air cavity 12 with the heat dissipation cavity 13, and a second air outlet 131 for discharging heat is disposed on an inner wall of the heat dissipation cavity 13.
Specifically, in the lamp according to the embodiment of the present invention, the light source assembly 20 is configured to emit illumination light, heat generated by the light source assembly 20 is transferred to the heat sink 30, when the heat sink 30 dissipates heat, the driving mechanism 50 is started, the driving mechanism 50 drives the fan blade 40 to rotate, so that external air is sucked into the air cavity 12 from the air inlet 121 and forms an air flow, the air flow enters the heat dissipation cavity 13 from the first air outlet 122, and the air flow takes away heat on the heat sink 30 in the heat dissipation cavity 13 and then is discharged from the second air outlet 131, thereby achieving a heat dissipation effect. According to the lamp provided by the embodiment of the invention, the fan blade 40, the radiator 30 and the driving mechanism 50 are respectively arranged in different cavities, the heat load of the heat of the radiator 30 on the fan blade 40 and the driving mechanism 50 is small, and the service life of the lamp is long; in addition, the airflow formed by the fan blades 40 in the air cavity 12 is adopted, and the heat on the radiator 30 is taken away by the airflow in a blowing mode, so that the heat dissipation effect of the radiator 30 can be greatly improved, the backflow of high-temperature airflow can be avoided, and the service life of the lamp is further prolonged.
In this embodiment, as shown in fig. 1 to 2, the casing 10 includes a cover plate 15, a first half shell 16 and a second half shell 17, one end of the first half shell 16 is fastened on the second half shell 17, a first partition plate 161 is disposed in the first casing 10, a second partition plate 171 is disposed in the second half shell 17, the first partition plate 161 and the second partition plate 171 divide an inner cavity of the casing 10 into a heat dissipation cavity 13, a wind cavity 12 and a mounting cavity 11, the wind cavity 12 is defined by the first half shell 16, the second half shell 17, the first partition plate 161 and the second partition plate 171, the mounting cavity 11 is located in the first half shell 16, and the heat dissipation cavity 13 is located in the second half shell 17; in addition, the driving mechanism 50 and the electrical components of the lamp are both located in the installation cavity 11, and the cover plate 15 covers the opening of the installation cavity 11 to close the opening, so that the driving mechanism 50 and the electrical components in the lamp are prevented from being exposed; the air cavity 12 is arranged between the heat dissipation cavity 13 and the mounting cavity 11, so that the influence of heat in the heat dissipation cavity 13 on the driving mechanism 50 and electrical components can be greatly reduced, the driving mechanism 50 of the lamp, the electrical components and other parts are prevented from being damaged due to overlarge heat load, and the service life of the lamp is prolonged.
Further, as shown in fig. 1-2, the light source assembly 20 includes a lamp panel 21, a transparent cover 22 and a lamp base 23, the heat sink 30 is installed in the heat dissipation cavity 13 and seals an opening of the heat dissipation cavity 13, the bottom of the lamp base 23 is installed on a side of the heat sink 30 opposite to the side of the heat sink 30, the lamp panel 21 is installed on a cavity bottom surface of the lamp base 23, so that heat generated by light emission of the lamp panel 21 can be directly transmitted to the heat sink 30 through the bottom of the lamp base 23, the heat generated by the lamp panel 21 can be timely dissipated by the heat sink 30, the lamp panel 21 is ensured to have a good heat dissipation effect, and damage of the lamp due to overheating of the lamp panel 21 is avoided; the transparent cover 22 is directly and hermetically mounted on the lamp holder base 23 and encloses the lamp panel 21 in the lamp holder base 23.
In another embodiment of the present invention, as shown in fig. 1 to 2, the fan blade 40 of the lamp is a centrifugal fan blade 40, the air inlet 121 is located on one side of the centrifugal fan blade 40, and the first air outlet 122 is located on the other side of the centrifugal fan blade 40. During the rotation process of the centrifugal fan blade 40, negative pressure can be formed at the air inlet 121, so that more external air enters the air cavity 12, the air entering the air cavity 12 is compressed under the rotation of the centrifugal fan blade 40, the pressure of the air in the air cavity 12 is increased and forms a pressurized airflow, the pressurized airflow is ejected from the first air outlet 122 and enters the heat dissipation cavity 13, the airflow entering the heat dissipation cavity 13 is high in flow speed, heat on the heat sink 30 can be quickly taken away, and finally the pressurized airflow is discharged from the second air outlet 131.
In another embodiment of the present invention, as shown in fig. 1 to 2, a partition 123 is disposed in the air cavity 12 of the lamp, the partition 123 divides the air cavity 12 into an upper semi-air cavity 124 and a lower semi-air cavity 125, the centrifugal fan blade 40 is located in the lower semi-air cavity 125, a third air outlet 1231 for communicating with the upper semi-air cavity 124 is disposed on the partition 123, and the first air outlet 122 is disposed on the inner wall of the upper semi-air cavity 124 close to the heat dissipation cavity 13. Specifically, under the action of rotation of the fan blade 40, external air enters the lower half wind cavity 125 from the air inlet 121 to be compressed to form an air flow, enters the upper half wind cavity 124 from the third air outlet 1231, and then enters the heat dissipation cavity 13 from the first air outlet 122, so as to dissipate heat of the heat sink 30. The upper half wind cavity 124 can prevent high-temperature airflow from flowing back into the lower half wind cavity 125, so that the service life of the fan blades 40 is prolonged, namely the service life of the whole lamp is prolonged.
In another embodiment of the present invention, as shown in fig. 2, the lower half cavity 125 of the lamp is provided to include a first passage 1241, a second passage 1242 and a circular cavity 1243 adapted to the shape of the centrifugal fan 40, the first passage 1241 is located at a lower portion of one side of the circular cavity 1243 and communicates with the circular cavity 1243 and the first outlet vent 122, the second passage 1242 is located at an upper portion of the other side of the circular cavity 1243, and the second passage 1242 passes through the partition 123 to form a third outlet vent 1231 for communicating the circular cavity 1243 with the upper half cavity 124. Specifically, outside air enters the circular cavity 1243 from the first passage 1241 on one side, then the centrifugal fan blade 40 of the circular cavity 1243 rotates and compresses, enters the upper half wind cavity 124 from the second passage 1242 on the other side, and further enters the heat dissipation cavity 13 to blow and dissipate heat of the heat sink 30 of the heat dissipation cavity 13, and as the shape of the circular cavity 1243 is matched with the circular shape of the centrifugal fan blade 40, the compressed air of the centrifugal fan blade 40 has a good effect, the flow rate of airflow entering the upper plate wind cavity 12 is larger, the heat dissipation effect of the heat sink 30 is better, and the lamp has a better heat dissipation effect.
In another embodiment of the present invention, as shown in fig. 2, the heat sink 30 of the lamp includes a heat dissipation plate 31 and a plurality of fins 32, the fins 32 are uniformly spaced, each fin 32 is vertically disposed on a side surface of the heat dissipation plate 31, the first air outlet 122 is located above each fin 32, and the second air outlet 131 is located below each fin 32. The arrangement of the fins 32 greatly increases the contact area between the radiator 30 and the airflow, so that the heat on the radiator 30 is easier to radiate, and the radiating effect is good; meanwhile, the fins 32 are uniformly arranged at intervals, the fins 32 are vertically arranged, the first air outlet 122 is positioned above each fin 32, and the second air outlet 131 is positioned below each fin 32; the air current that gets into from wind chamber 12 then gets into from the interval between two adjacent fins 32 from the top of fin 32 and flows through, has taken away a large amount of heats on the fin 32 after, directly runs out from the second air outlet 131 of below, and the pressure that air current rectilinear motion received is little like this, is favorable to the discharge of high temperature air current, but greatly increased radiating effect, and the noise that the air current produced is little, can solve the radiating wind of convulsions formula and make an uproar problem.
In another embodiment of the present invention, there are a plurality of first air outlets 122 provided in the lamp, and the first air outlets 122 are uniformly spaced along a direction perpendicular to the fins 32. The plurality of first air outlets 122 are arranged along the direction perpendicular to the fins 32 at uniform intervals, the air flow in the air cavity 12 is divided into a plurality of air flows, the plurality of air flows respectively flow through the two adjacent fins 32 at intervals, so that heat on each fin 32 can be taken away, the heat dissipation on the heat radiator 30 is uniform, and the damage of the lamp caused by heat concentration is avoided.
Further, the number of the first air outlets 122 may be two, three, or more than three.
Further, the intervals between each first air outlet 122 and each adjacent fin 32 are arranged in a one-to-one correspondence manner, so that the airflow entering the first air outlet 122 directly flows into the interval between the corresponding fins 32 for heat dissipation, and the airflow flowing through the interval between each two adjacent fins 32 at the same speed can be ensured, so that the heat dissipation on the whole radiator 30 is more uniform, and the heat dissipation effect is better.
In another embodiment of the present invention, as shown in fig. 1, the lamp is further provided with a bulb 60 for detecting the temperature of the heat sink 30, and the bulb 60 is mounted on the heat sink 30. Specifically, the thermal bulb 60 obtains the temperature of the heat sink 30 and feeds a temperature signal back to the driving mechanism 50, the driving mechanism 50 sends an instruction to control the rotating speed of the fan blade 40, and when the surface temperature of the heat sink 30 rises, the driving mechanism 50 sends an instruction to accelerate the rotating speed of the fan blade 40, so that the heat of the heat sink 30 can be effectively discharged in time; when the surface temperature of the radiator 30 is reduced, the driving mechanism sends out an instruction to reduce the rotating speed of the fan blades 40, so that the purpose of high efficiency and energy saving is achieved.
In another embodiment of the present invention, as shown in fig. 1 to 2, the driving mechanism 50 of the lamp provided includes a motor 51 and a driving assembly 52, the light source assembly 20, the thermal bulb 60 and the motor 51 are all electrically connected to the driving assembly 52, and an output shaft of the motor 51 is connected to the fan blade 40. The motor 51 is used for driving the fan blade 40 to rotate, and the structure is simple. Specifically, drive assembly 52 includes controller 521 and battery 522, light source subassembly 20, thermal bulb 60 and motor 51 all with controller 521 electric connection, battery 522 and controller 521 electric connection, battery 522 can be light source subassembly 20, thermal bulb 60, controller 521 and motor 51 provide the electric power guarantee, controller 521 is used for controlling opening and closing of lamp pearl on the lamp plate 21 of light source subassembly 20, thermal bulb 60 feeds back temperature information to controller 521, controller 521 sends the instruction to adjust motor 51's output rotational speed, thereby adjust the rotational speed of fan blade 40, can adjust the rotational speed of fan blade 40 along with the temperature of radiator 30 like this, and then reach energy-efficient purpose.
Further, the controller 521 may be formed by integrating an electric control component, an information processing center and data processing, and the controller 521 may also be a PLC controller 521 or a computer.
Furthermore, the controller 521 stores a numerical table in which the temperature corresponds to the output rotation speed of the motor 51 one by one, and after the temperature sensing package 60 transmits the temperature information of the surface of the heat sink 30 to the controller 521, the controller 521 compares the temperature information with the temperature of the numerical table and finds the corresponding output rotation speed of the motor 51, and then adjusts the output rotation speed of the motor 51 according to the control of the output rotation speed of the motor 51, so as to adjust the rotation speed of the fan blade 40, thereby achieving the purpose of high efficiency and energy saving.
In another embodiment of the present invention, as shown in fig. 2, a mounting hole 111 communicating with the air cavity 12 is provided on an inner wall of the mounting cavity 11 of the lamp, and an output shaft of the motor 51 is hermetically mounted in the mounting hole 111 and extends into the air cavity 12 to be connected with the fan blade 40. The output shaft of the motor 51 penetrates through the mounting hole 111, the output shaft of the motor 51 is mounted in the mounting hole 111 in a sealing manner, and impurities such as dust and dust caused by rotation of the fan blade 40 cannot enter the mounting cavity 11 from the space between the mounting hole 111 and the output shaft of the motor 51, so that damage to the controller 521, the battery 522 and the motor 51 can be avoided, and the service life of the lamp is prolonged. The protection level of the installation cavity 11 can reach above IP 65. Specifically, the mounting holes 111 are provided on the first division plate 161.
In another embodiment of the present invention, as shown in fig. 1-2, a handle 14 is provided on the outside of the housing 10 of the lamp for a person to hold, and the bulb 60 is connected to the driving assembly 52 by a wire, and the wire is provided in the handle 14. The handle 14 can be held and taken by personnel, so that the lamp is more convenient to use; specifically, the handle 14 is disposed outside the first half shell 16, one end of the handle 14 is disposed outside the air cavity 12, and the other end of the handle 14 is disposed outside the mounting cavity 11, so that the wires between the thermal bulb 60 and the driving component 52 can enter the mounting cavity 11 along the extending direction of the handle 14 in the handle 14 through the air cavity 12, and thus, the wires can be prevented from being exposed, the electrical connection between the thermal bulb 60 and the driving component 52 is more reliable, and the structure of the whole lamp is more compact.
Further, the bulb 60 is connected with the controller 521 through a wire, and meanwhile, a connecting wire between the lamp panel 21 of the light source assembly 20 and the controller 521 may also be disposed in the handle 14 and extend into the installation cavity 11 along the extending direction of the handle 14 to be connected with the controller 521.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A light fixture, characterized by: the heat dissipation device comprises a shell, a light source assembly, a radiator, fan blades and a driving mechanism, wherein a mounting cavity, a wind cavity and a heat dissipation cavity are sequentially arranged in the shell, the driving mechanism is installed in the mounting cavity, the fan blades are installed in the wind cavity, the driving end of the driving mechanism extends into the wind cavity and is connected with the fan blades and used for driving the fan blades to rotate, the radiator is installed in the heat dissipation cavity, the light source assembly is installed on the radiator, an air inlet communicated with the outside is formed in the inner wall of the wind cavity, a first air outlet is formed in the inner wall of the wind cavity and is used for communicating the wind cavity with the heat dissipation cavity, and a second air outlet used for discharging heat is formed in the inner wall of the heat dissipation cavity;
the fan blades are centrifugal fan blades, the air inlet is located on one side of each centrifugal fan blade, and the first air outlet is located on the other side of each centrifugal fan blade.
2. The luminaire of claim 1, wherein: the fan blade is characterized in that a partition plate is arranged in the wind cavity and divides the wind cavity into an upper half wind cavity and a lower half wind cavity, the centrifugal fan blade is located in the lower half wind cavity, a third air outlet used for being communicated with the upper half wind cavity is formed in the partition plate, and the first air outlet is formed in the upper half wind cavity and is close to the inner wall of the heat dissipation cavity.
3. The luminaire of claim 2, wherein: the lower semi-wind cavity comprises a first channel, a second channel and a circular cavity matched with the centrifugal fan blade in shape, the first channel is located on the lower portion of one side of the circular cavity and communicated with the circular cavity and the first air outlet, the second channel is located on the upper portion of the other side of the circular cavity, and the second channel penetrates through the partition plate to form a third air outlet and is used for communicating the circular cavity with the upper semi-wind cavity.
4. The luminaire of claim 2, wherein: the radiator comprises a radiating plate and a plurality of fins, the fins are evenly arranged at intervals, the fins are vertically arranged on the side face of the radiating plate, the first air outlet is located above each fin, and the second air outlet is located below the fins.
5. The luminaire of claim 4, wherein: the number of the first air outlets is a plurality, and the first air outlets are uniformly arranged at intervals along the direction perpendicular to the fins.
6. A lamp as recited in any one of claims 1-5, wherein: the lamp further comprises a temperature sensing bulb for detecting the temperature of the radiator, and the temperature sensing bulb is installed on the radiator.
7. The luminaire of claim 6, wherein: the driving mechanism comprises a motor and a driving assembly, the light source assembly, the temperature sensing bulb and the motor are electrically connected with the driving assembly, and an output shaft of the motor is connected with the fan blades.
8. The luminaire of claim 7, wherein: the inner wall of the mounting cavity is provided with a mounting hole communicated with the air cavity, and an output shaft of the motor is hermetically mounted in the mounting hole and extends into the air cavity to be connected with the fan blades.
9. The luminaire of claim 7, wherein: the outside of casing is equipped with the handle that is used for supplying personnel to hold, the thermal bulb with drive assembly passes through the wire intercommunication, the wire set up in the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910634308.4A CN110440205B (en) | 2019-07-15 | 2019-07-15 | Lamp fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910634308.4A CN110440205B (en) | 2019-07-15 | 2019-07-15 | Lamp fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110440205A CN110440205A (en) | 2019-11-12 |
| CN110440205B true CN110440205B (en) | 2021-08-27 |
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|---|---|---|---|
| CN201910634308.4A Active CN110440205B (en) | 2019-07-15 | 2019-07-15 | Lamp fitting |
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| CN (1) | CN110440205B (en) |
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