CN220852052U

CN220852052U - Cooling device and photographic lamp

Info

Publication number: CN220852052U
Application number: CN202321995065.5U
Authority: CN
Inventors: 李颖明
Original assignee: Shenzhen Aitushi Innovation Technology Co ltd
Current assignee: Shenzhen Aitushi Innovation Technology Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2024-04-26
Anticipated expiration: 2033-07-26

Abstract

The utility model discloses a cooling device and a photographic lamp, wherein the cooling device comprises a magnetic force component for generating alternating magnetic force; the vibrating assembly comprises a magnetic part and a vibrating membrane, the vibrating membrane is provided with a first surface and a second surface which are away from each other, the first surface faces the magnetic assembly, the magnetic part is arranged on the first surface or the second surface and corresponds to the position of the magnetic assembly, and the magnetic part is used for inducing alternating magnetic force of the magnetic assembly and driving the vibrating membrane to vibrate back and forth so as to increase air flow; the heat dissipation component is arranged opposite to the second surface and is used for reducing the air temperature and taking away the heat of the photographic lamp after the air flows through the heat dissipation component. The photographic lamp comprises a light source, wherein the light source is provided with a light emitting surface and a backlight surface, the light emitting surface emits light, and the light source generates heat; in the cooling device, the heat dissipation component is connected with the backlight surface and takes away the heat of the light source. According to the photographic lamp, the magnetic force component drives the vibration component to vibrate back and forth to increase the air flow speed, so that the photographic lamp is cooled.

Description

Cooling device and photographic lamp

Technical Field

The utility model relates to the technical field related to photographic equipment, in particular to a cooling device and a photographic lamp.

Background

In shooting scenes such as advertisements and short video creation, lighting equipment is required to light for assistance, and indoor shooting is particularly so. For photography with higher requirements on lamplight, the photography lamp is required to be used because lamplight with different directions and different lamplight combinations is used for supplementing and adjusting light. The long-term use lamps and lanterns can lead to the photographic lamp to send out scalding easily, influence photographic lamp's normal work, and natural cooling time is slow, consequently need use cooling device to cool off lamps and lanterns, but in prior art, adopt the fan heat dissipation generally, and the fan heat dissipation adopts rotating machinery to increase the air velocity of flow, after a long time, the fan blade of fan appears wearing and tearing easily, appears abnormal sound, appears the condition that the fan blade dropped and takes place even, influences photographic lamp's normal use, influences the needs of shooting.

Disclosure of utility model

In order to overcome at least one of the drawbacks of the prior art, one of the objects of the present utility model is to provide a cooling device, which generates an alternating magnetic force by providing an alternating current to a coil, and the magnetic member drives a vibrating membrane to vibrate to increase air flow after sensing the alternating magnetic force, so as to reduce temperature, noise and mechanical wear.

Another object of the present utility model is to provide a photographic lamp, which can increase air flow to achieve cooling by using the cooling device, and reduce noise and mechanical wear.

One of the purposes of the utility model is to solve the problems by adopting the following technical scheme:

A cooling device, comprising:

The magnetic force assembly is used for generating alternating magnetic force;

The vibration assembly comprises a magnetic part and a vibration film, the vibration film is provided with a first surface and a second surface which are away from each other, the first surface faces the magnetic assembly, the magnetic part is arranged on the first surface or the second surface and corresponds to the position of the magnetic assembly, and the magnetic part is used for inducing alternating magnetic force of the magnetic assembly and driving the vibration film to vibrate back and forth so as to increase air flow;

The heat dissipation assembly is arranged opposite to the second surface and used for reducing the air temperature and taking away the heat of the photographic lamp after the air flows through the heat dissipation assembly.

Further, the magnetic component corresponds to the center position of the first surface, and the magnetic piece is arranged at the center position of the first surface.

Further, the vibrating diaphragm is made of plastic materials such as PP materials.

Further, the magnetic force assembly comprises a power supply, a driving plate and a coil, wherein the power supply is electrically connected with the driving plate, the driving plate is electrically connected with the coil, and the coil is arranged opposite to the first surface; the power supply is used for providing current to the driving plate, the driving plate is used for receiving the current of the power supply and converting the current into alternating current required by the coil, and the coil is used for generating alternating magnetic force after receiving the alternating current.

Further, an inverter device is arranged on the driving plate and used for converting the current provided by the power supply into alternating current required by the coil.

Further, the coil is an electromagnet formed by winding copper-core enameled wires around an iron rod, and the electromagnet generates alternating magnetic force after receiving alternating current of the driving plate.

Further, the heat dissipation assembly comprises a temperature equalizing plate, the temperature equalizing plate is arranged opposite to the second surface, and the temperature equalizing plate is used for reducing the air temperature after air flows and taking away the heat of the photographic lamp.

Further, a vacuum cavity is arranged on the temperature equalization plate, and cooling liquid is filled in the vacuum cavity.

Further, fins which are arranged at intervals are arranged on the temperature equalizing plate, and the fins are protruded away from the direction of the temperature equalizing plate.

The second technical scheme adopted for solving the problems is as follows:

A photographic lamp, comprising:

the light source is provided with a light emitting surface and a backlight surface, the light emitting surface emits light, and the light source generates heat;

In the cooling device, the heat dissipation component is connected with the backlight surface and takes away the heat of the light source.

In summary, the cooling device provided by the utility model has the following technical effects:

According to the cooling device and the photographic lamp, after the magnetic force component generates alternating magnetic force, the magnetic piece of the vibration component senses the alternating magnetic force and moves close to or far away from the magnetic force component, and drives the vibration membrane to vibrate back and forth, after the vibration membrane vibrates back and forth, the air flow speed is increased, so that wind power is generated, and after the wind power passes through the heat dissipation component, the temperature of the heat dissipation component is reduced, so that the photographic lamp is cooled, and the structure for replacing the conventional fan, which is mechanical, can reduce noise, reduce mechanical abrasion and prolong the service life.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Wherein the reference numerals have the following meanings:

1. A power supply; 11. a driving plate; 12. a coil; 2. a vibrating membrane; 21. a magnetic member; 3. a temperature equalizing plate; 31. a fin; 4. a light source.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "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 shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

In the case of example 1,

Referring to fig. 1, the present utility model discloses a cooling device, comprising: the device comprises a magnetic force component, a vibration component and a heat dissipation component, wherein the magnetic force component is used for generating alternating magnetic force; the vibration component comprises a magnetic piece 21 and a vibration film 2, the vibration film 2 is provided with a first surface and a second surface which are mutually away from each other, the first surface faces the magnetic component, the magnetic piece 21 is arranged on the first surface or the second surface and corresponds to the position of the magnetic component, and the magnetic piece 21 is used for inducing alternating magnetic force of the magnetic component and driving the vibration film 2 to vibrate back and forth so as to increase air flow; the heat dissipation component is arranged opposite to the second surface and is used for reducing the air temperature and taking away the heat of the photographic lamp after the air flows through the heat dissipation component.

On the basis of the structure, when the cooling device is used, the magnetic component is started to enable the magnetic component to generate alternating magnetic force, the magnetic component 21 can move close to or far away from the magnetic component due to the change of magnetic force direction after the alternating magnetic force is sensed, and the magnetic component 21 is arranged on the vibrating membrane 2, the vibrating membrane 2 can be driven to vibrate at a certain frequency by the movement of the magnetic component 21, the vibration of the vibrating membrane 2 can increase the flow of nearby air to generate wind, and after the wind is generated on the vibrating membrane 2 and passes through the heat dissipation component, the heat dissipation component can cool the air, and the heat of the photography lamp can be taken away by the air after the temperature is lowered.

In shooting scenes such as advertisements and short video creation, lighting equipment is required to light for assistance, and indoor shooting is particularly so. For photography with higher requirements on lamplight, the photography lamp is required to be used because lamplight with different directions and different lamplight combinations is used for supplementing and adjusting light. Long-term use lamps and lanterns can lead to photographic lamp to send out scalds, influence photographic lamp's normal work, and natural cooling time is slow, consequently need use cooling device to cool off lamps and lanterns, but in prior art, adopt the fan heat dissipation generally, and the fan heat dissipation adopts rotating machinery to increase the air velocity, after a long time, the fan blade of fan appears wearing and tearing easily, appears abnormal sound, appears the condition that the fan blade dropped and takes place even, influences photographic lamp's normal use, influences the needs of shooing.

Therefore, in this embodiment, through magnetic force subassembly and vibration subassembly cooperation increase air velocity of flow, after magnetic force subassembly produced alternating magnetic force, thereby the magnetic part 21 can drive vibrating diaphragm 2 back and forth vibration increase the velocity of flow of air, for fan heat dissipation adopts fan blade rotating machinery to increase the air velocity of flow, the vibration of vibrating diaphragm 2 can effectively reduce noise to reduce mechanical wear, can prolong cooling device's life.

Further, the magnetic assembly corresponds to the first surface center position, and the magnetic member 21 is disposed at the first surface center position.

On the basis of the above structure, in the present embodiment, the magnetic member 21 is disposed at the center of the diaphragm 2, and after the magnetic member generates the alternating magnetic force, the magnetic member 21 drives the diaphragm 2 to vibrate back and forth at the center of the diaphragm 2, thereby increasing the flow rate of air.

Since the maximum amplitude can be generated at the center position of the diaphragm 2, in the present embodiment, the magnetic member 21 is provided at the center of the diaphragm 2, thereby increasing the flow rate of air for the maximum efficiency of vibration of the diaphragm 2. Of course, in addition to this, the magnetic member 21 may be disposed at another position of the diaphragm 2, or may be disposed on the second surface, so as to generate the same effect, or the magnetic member 21 may be disposed on the outer periphery of the diaphragm 2, so as to drive the diaphragm 2 to vibrate back and forth, so that the vibration of the diaphragm 2 only needs to increase the flow of air, and the air may pass through the heat dissipation assembly, so that the air may be selected and disposed according to the actual situation.

In the present embodiment, the magnetic member 21 is made of a permanent magnet, and the permanent magnet is bonded to the diaphragm 2 to pull the diaphragm 2 back and forth to generate vibrations of different frequencies. Of course, the magnetic member 21 may be made of other magnetic materials, and only the magnetic member 21 may vibrate back and forth according to the alternating magnetic force and drive the vibration membrane 2 to vibrate, so that the magnetic member may be selected and set according to the actual situation.

Further, the diaphragm 2 is made of a plastic material such as PP material.

On the basis of the above structure, the diaphragm 2 is made of plastic material such as PP material. The vibration film 2 needs to vibrate back and forth to increase the flow rate of air, so that the selection of the preparation material of the vibration film 2 needs to consider that the plasticity is good, the vibration amplitude is larger during vibration, and larger flowing air and other factors can be provided, so that the PP material is adopted to prepare the vibration film 2 in the embodiment, larger noise can not be generated during vibration, and the loss of the vibration film 2 prepared from the PP material is smaller during vibration, and larger damage to the service life can not be generated. Of course, besides the PP material in this embodiment, other materials meeting the above characteristics may be used for preparation, and may be selected and set according to the needs of practical situations.

Further, the magnetic force assembly comprises a power supply 1, a driving plate 11 and a coil 12, wherein the power supply 1 is electrically connected with the driving plate 11, the driving plate 11 is electrically connected with the coil 12, and the coil 12 is arranged opposite to the first surface; the power supply 1 is arranged to supply a current to the drive plate 11, the drive plate 11 is arranged to receive the current of the power supply 1 and to convert the current into an alternating current required by the coil 12, the coil 12 being arranged to generate an alternating magnetic force upon receiving the alternating current.

Based on the above structure, in this embodiment, the specific structure of the magnetic assembly for generating the alternating magnetic force includes the power source 1, the driving board 11 and the coil 12, when the power source 1 is started, the power source 1 supplies the current to the driving board 11, then the current is converted into the alternating current in the driving board 11, the flowing direction of the alternating current is continuously changed, when the alternating current flows to the coil 12, the copper wires on the coil 12 are electrified to form the magnetic field, and the iron rod belt is made to have the magnetic force, and because the current direction of the alternating current is continuously changed, the direction of the magnetic force generated by the coil 12 is also continuously changed, and therefore the coil 12 generates the alternating magnetic force to drive the magnetic member 21 to continuously vibrate back and forth.

The alternating magnetic field is generated by a changing electric field, and due to the principle of generating magnetism by electricity, that is, when a metal wire passes through current, a circular magnetic field is generated in a space around the wire, the larger the current passing through the wire is, the stronger the generated magnetic field is, the circular magnetic field is formed around the wire, and when the direction of the current passing through the wire is changed, the direction of the magnetic field is also changed, so that in order to enable the magnetic element 21 to pull the vibrating membrane 2 back and forth, the direction of the current is also changed according to a certain frequency, and thus the direction of the magnetic field is changed, in the embodiment, the power supply 1 is required to supply current, the driving plate 11 converts the current into alternating current, the direction of the current is changed periodically with time, and when the alternating current passes through the coil 12, the direction of the magnetic field generated by the coil 12 is changed with the change of the direction of the alternating current, so that the magnetic element 21 can pull the vibrating membrane 2 back and forth, and periodic vibration is generated.

In this embodiment, the alternating magnetic force may be generated by other modes in the prior art besides the electromagnetic generating mode, and may be selected and set according to the actual situation.

Further, the driving board 11 is provided with an inverter device for converting the current supplied from the power source 1 into an alternating current required by the coil 12.

On the basis of the above-described structure, in the present embodiment, the driving board 11 is provided with the inverter device, and after the current passes through the inverter device, the current is converted into an alternating current, so that the coil 12 generates an alternating magnetic force.

The inverter converts direct current electric energy (battery, accumulator) into alternating current (generally 220v, 50HZ sine or square wave). In popular terms, the inverter device is a device that converts Direct Current (DC) into Alternating Current (AC). The inverter comprises an inverter bridge, control logic and a filter circuit. The inverter has high conversion efficiency and quick start; the safety performance is good, the protection functions such as short circuit, overload, overvoltage/undervoltage, overtemperature and the like can be effectively prevented, the physical performance is good, the load adaptability and the stability are strong, and therefore the inverter is adopted in the embodiment, and the current of the power supply 1 is converted into alternating current required by the coil 12.

It should be noted that, in addition to the conversion performed by the inverter, the current may be limited in voltage and current by other manners in the prior art, and the frequency, phase, etc. may be changed to the alternating current required by the coil 12. In this embodiment, the power source 1 may be a direct current power source 1 with different voltages such as 5V, 12V, 24V or 48V, or an alternating current power source 1 may be used, and after providing current to the driving board 11, the inverter device may also convert the current of the power source 1 into an alternating current required by the coil 12, which may be selected and set according to the actual situation.

Further, the coil 12 is an electromagnet formed by winding copper-core enameled wires around an iron rod, and the electromagnet generates alternating magnetic force after receiving alternating current of the driving plate 11.

On the basis of the structure, the coil 12 is an electromagnet formed by winding an iron rod with a copper core covered wire. The copper wire is wound on the iron rod, and then when the copper wire of the coil 12 is electrified, the current passing through the copper wire generates a magnetic field, and the magnetic field can make the iron rod have magnetic force and attract or repel the magnetic piece 21, so that the magnetic piece 21 can drive the vibrating membrane 2 to vibrate back and forth. It should be noted that the coil 12 may be prepared and arranged in other ways.

Further, the heat dissipation assembly comprises a temperature equalizing plate 3, the temperature equalizing plate 3 is opposite to the second surface, and the temperature equalizing plate 3 is used for reducing the air temperature and taking away the heat of the photography luminaire after the air flows.

On the basis of the above structure, in this embodiment, the heat dissipation component dissipates heat by using the temperature equalization plate 3, one surface of the temperature equalization plate 3 is opposite to the second surface of the vibration film 2, so as to meet the air transmitted from the vibration film 2, and the other surface of the temperature equalization plate is abutted to the photography lamp, when the air passes through the temperature equalization plate 3, the temperature equalization plate 3 can cool the air, thereby taking away the heat of the photography lamp.

Further, a vacuum cavity is arranged on the temperature equalizing plate 3, and cooling liquid is filled in the vacuum cavity.

The surface of the temperature equalizing plate 3, which is close to the photographic lamp, is heated, then the liquid at the bottom of the vacuum cavity of the temperature equalizing plate 3 is evaporated and diffused into the whole vacuum cavity after absorbing heat, the heat is conducted onto the heat radiating fins, and then condensed into liquid, and the liquid returns to the bottom, so that the evaporation and condensation processes similar to a refrigerator air conditioner are rapidly circulated in the vacuum cavity, and quite high heat radiating efficiency is realized.

Therefore, in this embodiment, the heat dissipation is performed by using the temperature equalizing plate 3, and of course, other heat dissipation structures such as heat dissipation fins and heat dissipation flat tubes can be used in addition to the heat dissipation by using the temperature equalizing plate, or heat dissipation is performed by using other heat dissipation components in the prior art, and the heat dissipation structures can be selected and set according to the needs of actual situations.

Further, fins 31 are arranged on the temperature equalizing plate 3 at intervals, and the fins 31 are protruded away from the temperature equalizing plate 3.

On the basis of the above structure, the fins 31 arranged at intervals are further arranged on the temperature equalization plate 3, when air flows through the temperature equalization plate 3 and the fins 31, the contact area between the temperature equalization plate 3 and the air can be increased by the raised fins 31, and the heat dissipation efficiency of the temperature equalization plate 3 can be effectively increased, so that the heat dissipation efficiency of the temperature equalization plate 3 is further increased by arranging the fins 31 arranged at intervals in the embodiment.

Example 2 based on the structure of the above example,

The utility model also provides a photographic lamp comprising: a light source 4, wherein the light source 4 is provided with a light emitting surface and a backlight surface, the light emitting surface emits light, and the light source 4 generates heat; in the cooling device, the heat dissipation component is connected with the backlight surface and takes away the heat of the light source 4.

On the basis of the above structure, when the photography luminaire of this embodiment is used, the light source 4 emits light, and heat can be generated to easily scald, so that by adopting the cooling device, the radiating component is connected with the light source 4, the air flow rate is increased through the cooperation of the magnetic component and the vibration component, after the magnetic component generates alternating magnetic force, the magnetic component 21 can drive the vibrating diaphragm 2 to vibrate back and forth to increase the air flow rate, and when the air flows through the radiating component, the radiating component can reduce the temperature of the air, so that the air can take away the heat of the light source 4. Compared with the fan radiating which adopts a fan blade rotating machine to increase the air flow speed, the vibration of the vibrating diaphragm 2 can effectively reduce noise, reduce mechanical abrasion, prolong the service life of the cooling device and ensure the normal work of the photographic lamp.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A cooling device, comprising:

a magnetic assembly for generating an alternating magnetic force;

The vibration assembly comprises a magnetic part (21) and a vibration film (2), wherein the vibration film (2) is provided with a first surface and a second surface which are opposite to each other, the first surface faces the magnetic assembly, the magnetic part (21) is arranged on the first surface or the second surface and corresponds to the position of the magnetic assembly, and the magnetic part (21) is used for inducing alternating magnetic force of the magnetic assembly and driving the vibration film (2) to vibrate back and forth so as to increase air flow;

The heat dissipation assembly is arranged opposite to the second surface and is used for reducing the air temperature and taking away the heat of the photographic lamp after the air flows through the heat dissipation assembly.

2. A cooling device according to claim 1, wherein the magnetic assembly corresponds to the first face centre position, and the magnetic member (21) is arranged at the first face centre position.

3. A cooling device according to claim 1, characterized in that the vibrating membrane (2) is made of PP material.

4. The cooling device according to claim 1, characterized in that the magnetic assembly comprises a power source (1), a drive plate (11) and a coil (12), the power source (1) being electrically connected to the drive plate (11), the drive plate (11) being electrically connected to the coil (12), the coil (12) being arranged opposite to the first face; the power supply (1) is used for providing current to the driving plate (11), the driving plate (11) is used for receiving the current of the power supply (1) and converting the current into alternating current required by the coil (12), and the coil (12) is used for generating alternating magnetic force after receiving the alternating current.

5. A cooling device according to claim 4, characterized in that the drive plate (11) is provided with inverter means for converting the current supplied by the power source (1) into an alternating current required by the coil (12).

6. The cooling device according to claim 4, characterized in that the coil (12) is an electromagnet of copper-cored wire wound around an iron rod, which electromagnet generates an alternating magnetic force upon receiving an alternating current of the drive plate (11).

7. The cooling device according to claim 1, wherein the heat dissipation assembly comprises a temperature equalizing plate (3), the temperature equalizing plate (3) is disposed opposite to the second surface, and the temperature equalizing plate (3) is used for reducing the air temperature and taking away the heat of the photography luminaire after the air flows through.

8. The cooling device according to claim 7, characterized in that the temperature equalizing plate (3) is provided with a vacuum chamber, and the vacuum chamber is filled with cooling liquid.

9. The cooling device according to claim 8, wherein fins (31) are arranged on the temperature equalizing plate (3) at intervals, and the fins (31) are protruded away from the temperature equalizing plate (3).

10. A photographic lamp, comprising:

A light source (4), the light source (4) having a light emitting surface and a backlight surface, the light emitting surface emitting light, the light source (4) generating heat;

A cooling arrangement according to any of claims 1-9, wherein the heat dissipating component is connected to the backlight surface and removes heat from the light source (4).