A stage lamp capable of self-checking air tightness through gas density

Abstract

The utility model relates to the technical field of stage lamp equipment, and in particular to a stage lamp that self-checks air tightness through gas density, comprising a controller and a sealed cavity formed inside the stage lamp and suitable for accommodating a heating element of the stage lamp, a gas density sensor is arranged inside the sealed cavity, and the controller is electrically connected to the gas density sensor to detect the density of one or more gases inside the sealed cavity through the gas density sensor. The utility model, a stage lamp that self-checks air tightness through gas density, can help to realize air tightness detection inside the stage lamp, and facilitate timely discovery of air tightness changes inside the stage lamp.

Description

Technical Field

[0001] The utility model relates to the technical field of stage lamp equipment, in particular to a stage lamp which can self-check air tightness through gas density. Background Art

[0002] Stage lights are important equipment for stage performances, and because they need to be used in outdoor environments, they need to have a certain degree of waterproof sealing. Waterproof stage lights are mostly used in outdoor stages or playgrounds, etc. In order to prevent water vapor from entering the lamp cavity and causing short circuits in electronic components, which will shorten the service life of the stage lights, the waterproof rating of this type of stage lights is mostly IP65 or IP68.

[0003] A stage light usually consists of three parts: a lamp head, an arm, and a chassis. When the lamp head, arm, and chassis of a stage light are not connected to each other, in order to achieve good airtightness, the lamp head, arm, and chassis are generally sealed separately. When the lamp head, arm, and chassis of a stage light are connected to each other, they are sealed at the joints of the three. The purpose is to isolate external water vapor from entering the interior of the stage light, meet the waterproof grade, and prevent damage to various electrical components and electronic circuits inside the stage light from moisture.

[0004] However, in actual applications, it is generally difficult for users to know the air tightness inside the stage light before or during use, and it is also difficult for users to discover abnormalities in the air tightness inside the stage light in time. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the utility model provides a stage lamp which can self-check the air tightness through gas density, which can help to realize the air tightness detection inside the stage lamp and facilitate timely discovery of the air tightness changes inside the stage lamp.

[0006] The utility model discloses a stage lamp which can self-check air tightness through gas density, comprising a controller and a sealed cavity which is formed inside the stage lamp and is suitable for accommodating a heating element of the stage lamp, a gas density sensor is arranged inside the sealed cavity, and the controller is electrically connected to the gas density sensor so as to detect the density of one or more gases inside the sealed cavity through the gas density sensor.

[0007] According to the utility model, a stage lamp that self-checks air tightness through gas density also includes:

[0008] A through hole is provided on the outer wall of the sealing cavity;

[0009] A valve device is arranged at the through hole and the through hole is opened or closed by the valve device.

[0010] According to the utility model of a stage lamp capable of self-checking air tightness through gas density, the valve device comprises a solenoid valve.

[0011] According to the utility model, a stage lamp that self-checks air tightness through gas density, the valve device also includes a waterproof breathable valve, and the waterproof breathable valve covers the through hole; the solenoid valve is arranged on the valve port of the waterproof breathable valve to open or close the valve port of the waterproof breathable valve through the solenoid valve.

[0012] According to the utility model, a stage lamp that self-checks air tightness through gas density is provided inside the sealed cavity with a temperature sensor for detecting the internal temperature of the sealed cavity;

[0013] The temperature sensor is electrically connected to the controller and transmits the detected parameters to the controller.

[0014] According to the utility model, a stage lamp that self-checks air tightness through gas density, the sealed cavity is formed inside the lamp head of the stage lamp, and the heating element of the stage lamp includes a light source arranged inside the lamp head.

[0015] According to the utility model, a stage lamp that self-checks air tightness through gas density, the stage lamp heating element also includes a color filter module and / or a pattern module and / or an aperture and / or a focusing module and / or a cutter and / or a prism module arranged inside the lamp head.

[0016] According to the utility model, a stage lamp capable of self-testing air tightness through gas density, the pattern module is at least one of a rotating pattern piece, a fixed pattern plate, and a fire plate.

[0017] According to the utility model, a stage lamp that self-checks air tightness through gas density, the sealed cavity is formed inside the chassis of the stage lamp, and the heating element of the stage lamp includes a switching power supply arranged inside the chassis.

[0018] According to the utility model, a stage lamp that self-checks air tightness through gas density, the sealed cavity is formed inside the support arm of the stage lamp, and the stage lamp heating element includes an electric control element arranged inside the support arm.

[0019] According to the utility model, a stage lamp that self-checks air tightness through gas density, the stage lamp heating element also includes a driving circuit for controlling the operation of the stage lamp, and the controller is electrically connected to the driving circuit.

[0020] According to the utility model of a stage lamp that self-checks air tightness through gas density, there are several gas density sensors, and each of the gas density sensors is distributed at different positions inside the sealed cavity.

[0021] The utility model discloses a stage light structure for self-checking air tightness through gas density. A gas density sensor is added to the sealed cavity inside the stage light. The controller of the stage light can detect the density change of one or more gases inside the sealed cavity through the gas density sensor. The detection can be performed before the stage light is officially put into operation, or real-time monitoring can be performed during the normal operation of the stage light. When it is necessary to detect the air tightness inside the stage light before the stage light is officially put into operation, the stage light is first turned on. During the process of the stage light heating element inside the sealed cavity generating heat to the outside, the temperature inside the sealed cavity also continues to rise and the air pressure inside the sealed cavity increases. At this time, if the air tightness of the sealed cavity is abnormal, the gas inside the sealed cavity is easy to leak out. The controller of the stage light can detect the decrease in the density of one or more gases inside the sealed cavity through the gas density sensor. The user can timely know the air tightness change inside the stage light through the controller of the stage light and judge whether the air tightness inside the stage light is normal. In addition, optionally, when the stage light is in operation, the internal gas density of the sealed cavity with good airtightness hardly changes, and a gas density sensor is used for detection and the parameters are transmitted to the controller to monitor the airtightness inside the sealed cavity in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is the internal structure diagram of the lamp holder of the utility model;

[0024] Figure 2 yes Figure 1 A partial enlarged view of

[0025] Figure 3 It is the internal structure diagram of the chassis part of the utility model;

[0026] Figure 4 It is a brief schematic diagram of the overall structure of the utility model.

[0027] Reference numerals:

[0028] 100, lamp holder, 101, light source;

[0029] 200, chassis, 201, switching power supply;

[0030] 300, support arm;

[0031] 1. Sealed chamber, 2. Gas density sensor, 3. Through hole, 4. Valve device, 5. Controller. DETAILED DESCRIPTION

[0032] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limitations on the utility model. In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the utility model.

[0033] like Figures 1 to 4 As shown, a stage light of this embodiment that self-checks air tightness by gas density includes a controller 5 and a sealed cavity 1. The sealed cavity 1 is formed inside the stage light and is used to accommodate a heating element of the stage light. The heating element of the stage light is an electrical device and an electronic component that generates heat during the operation of the stage light. In addition, a gas density sensor 2 is installed inside the sealed cavity 1. The gas density sensor 2 is often used to monitor the air density or the content of a specific gas in a confined space. In this embodiment, the gas density sensor 2 is optionally a Hongke DGF-l1 sensor. The detection accuracy of the Hongke DGF-l1 can reach ±0.1kg / m 3 To ±0.25kg / m 3 , the measuring range can reach 0 to 19kg / m 3 , so it has higher detection accuracy and wider application range. The controller 5 is electrically connected to the gas density sensor 2, so the controller 5 can detect the density of one or more gases inside the sealed cavity 1 through the gas density sensor 2. The present embodiment preferably detects nitrogen or carbon dioxide inside the sealed cavity 1, or other gases with higher content and more stable in the air.

[0034] Before the air tightness inside the stage light is detected, the controller 5 can detect and record the gas density value of the sealed cavity 1 inside the stage light through the gas density sensor 2, and then control the stage light to operate. During the operation, the stage light heating element inside the sealed cavity 1 generates heat to the outside, causing the temperature inside the sealed cavity 1 to continue to rise and the air pressure inside the sealed cavity 1 to increase. At this time, if the air tightness of the sealed cavity 1 is abnormal, the gas inside the sealed cavity 1 will easily leak out. Then, the controller 5 can detect the gas density value of the sealed cavity 1 inside the stage light through the gas density sensor 2 again. If the gas density value detected for the second time is significantly lower than the gas density value detected before the stage light is operated, it reflects that there is a leak in the sealed cavity 1, and the air tightness inside the stage light is abnormal and needs to be maintained in time. On the contrary, if the two gas density values ​​detected are similar, it means that there is no leakage in the sealed cavity 1 and the air tightness inside the stage light is normal. Preferably, the stage light is also provided with an alarm electrically connected to the controller 5. When the gas density sensor 2 detects leakage in the sealed cavity 1, the controller 5 can send a warning signal to the outside through the alarm, so that the user can promptly discover abnormalities in the airtightness of the stage light and perform maintenance on the stage light equipment in time to prevent the electrical components installed in the sealed cavity 1 from being damaged by moisture.

[0035] Of course, as an alternative to the above control method, the controller can also detect the gas density value of the sealed cavity 1 through the gas density sensor 2 continuously or randomly or at a certain time interval. In the process of detecting the airtightness inside the stage light, when the gas density sensor 2 detects that the gas density value of the sealed cavity 1 is significantly lower than the preset threshold, the controller can determine that there is a leakage in the sealed cavity 1 and the airtightness inside the stage light is abnormal.

[0036] The above structure is mainly used in the application scenario of detecting the internal air tightness of the stage lamp. However, when the stage lamp is actually running, the stage lamp heating element will generate a large amount of heat inside the sealed cavity 1, causing the internal temperature of the sealed cavity 1 to continue to rise, and the internal air pressure will also increase with the increase in temperature. In order to avoid the normal operation of the electrical components and electronic circuits being affected by the excessive internal air pressure of the sealed cavity 1, this embodiment opens a through hole 3 on the outer wall of the sealed cavity 1, so that the through hole 3 is connected to the external atmospheric environment, and a valve device 4 is installed in the through hole 3, which can open or close the through hole 3. Therefore, when it is not necessary to detect the internal air tightness of the stage lamp, the through hole 3 is opened through the valve device 4. When the internal air pressure of the sealed cavity 1 increases during the operation of the stage lamp heating element, the air inside the sealed cavity 1 can be discharged outward through the through hole 3 normally, avoiding excessive internal pressure of the stage lamp. When it is necessary to detect the internal air tightness of the stage light, the through hole 3 is closed by the valve device 4 to make the sealed cavity 1 completely sealed. At this time, the stage light heating element inside the sealed cavity 1 is operated to make it generate heat and increase the internal air pressure of the sealed cavity 1. At this time, the controller 5 detects the change of the gas density of the sealed cavity 1 through the gas density sensor 2 to determine whether there is gas leakage in the sealed cavity 1. Therefore, the above structure can facilitate the stage light to switch between the normal operation mode and the air tightness detection mode as needed, which is more flexible and convenient to use.

[0037] In one embodiment, the valve device 4 includes a solenoid valve, which has the advantage of being easy to control stably, and the valve device 4 also includes a waterproof breathable valve, which covers the through hole 3, so that the waterproof breathable valve can be used to prevent external moisture from entering the sealed cavity 1 through the through hole 3, ensuring the waterproofness of the stage light, and at the same time, during the normal operation of the stage light, the gas inside the sealed cavity 1 can also be discharged to the outside through the waterproof breathable valve to avoid excessive internal air pressure in the sealed cavity 1. Further, the solenoid valve is installed on the valve port of the waterproof breathable valve, so that the valve port of the waterproof breathable valve can be opened or closed by the solenoid valve, so when the stage light needs to switch to the air tightness detection mode, the solenoid valve is in a normally closed state, and the valve port of the waterproof breathable valve can be closed by the solenoid valve, which is equivalent to closing the through hole 3, and the sealed cavity 1 can be in a sealed state at this time, and then the gas density sensor 2 can be used to detect the change of gas density in the sealed cavity 1.

[0038] In one embodiment, a temperature sensor (not shown) is also installed inside the sealed cavity 1. The temperature sensor can be fixed on the inner wall of the sealed cavity 1 or installed on the driving circuit board inside the sealed cavity 1. The controller 5 is electrically connected to the temperature sensor, so the controller 5 can detect the internal temperature of the sealed cavity 1 through the temperature sensor. Since the temperature sensor is added, when it is necessary to detect the airtightness inside the stage light (that is, when the stage light needs to switch to the airtightness detection mode), the controller 5 can first detect whether the inside of the sealed cavity 1 reaches a preset temperature through the temperature sensor. If the preset temperature is reached, it can be determined that the inside of the sealed cavity 1 has risen to a pressure suitable for detecting gas density. At this time, the controller 5 detects the gas density of the sealed cavity 1 through the gas density sensor 2 to determine the airtightness of the sealed cavity 1. Therefore, the added temperature sensor can help the stage light controller 5 determine whether the sealed cavity 1 has risen to a pressure suitable for detecting gas density in the airtightness detection mode.

[0039] Optionally, the sealed cavity 1 is formed inside the lamp head 100 of the stage lamp, and the stage lamp heating element includes a light source 101 installed inside the lamp head 100. Since the light source 101 is the main source of heat generated inside the stage lamp head, the heat generated by the light source 101 inside the sealed cavity 1 can be used to increase the air pressure inside the sealed cavity 1, so that the gas density sensor 2 can detect the gas density of the sealed cavity 1 inside the lamp head 100 and judge the air tightness inside the lamp head 100. Since the internal space of the lamp head of the stage lamp is relatively large, the number of gas density sensors 2 in this embodiment is multiple, and the sealed cavity 1 inside the lamp head 100 is installed with multiple gas density sensors 2, and each gas density sensor 2 is respectively installed at different positions inside the sealed cavity 1, so that the air tightness of the sealed cavity 1 inside the lamp head 100 can be detected more accurately, which helps to timely discover the abnormality of the air tightness of the sealed cavity 1 and prevent the electrical components installed inside the sealed cavity 1 from being damaged by moisture.

[0040] Specifically, the stage light heating element also includes a color filter module, a pattern module, an aperture, a focusing system, a cutter and a prism module installed inside the sealed cavity 1 of the lamp head 100, and the color filter module includes a color plate and a CMY component, and the pattern module includes a rotating pattern plate, a fixed pattern plate, and a flame plate. The above-mentioned various electrical components are also the source of heat generated inside the stage light, so the heat generated by the above-mentioned various electrical components inside the sealed cavity 1 can be used to promote the increase of the air pressure inside the sealed cavity 1, so that the gas density sensor 2 can detect the gas density of the sealed cavity 1.

[0041] Optionally, a sealed cavity 1 is formed inside a chassis 200 of a stage light, and the stage light heating element includes a switching power supply 201 installed inside the chassis 200. Since the switching power supply 201 is the main source of heat generated inside the stage light chassis, the heat generated by the switching power supply 201 inside the sealed cavity 1 can be used to cause the air pressure inside the sealed cavity 1 to rise, so that the gas density sensor 2 can detect the gas density of the sealed cavity 1 inside the chassis 200 and judge the airtightness inside the chassis 200, which helps to promptly discover the airtightness abnormality of the sealed cavity 1 and avoid damage to electrical components installed inside the sealed cavity 1 due to moisture.

[0042] Optionally, the sealed cavity 1 is formed inside the support arm 300 of the stage light, and the stage light heating element includes an electrically controlled element installed inside the support arm 300. Since an electronic circuit is also installed inside the support arm 300 of the stage light, the circuit is provided with an electrically controlled element, and the electrically controlled element is the source of heat generated inside the support arm of the stage light, the heat generated by the electrically controlled element inside the sealed cavity 1 can be used to cause the air pressure inside the sealed cavity 1 to rise, so that the gas density sensor 2 can detect the gas density of the sealed cavity 1 inside the support arm 300 and judge the airtightness inside the support arm 300, which is helpful to timely discover the abnormality of the airtightness of the sealed cavity 1 and avoid the electrical components installed inside the sealed cavity 1 from being damaged by moisture.

[0043] In addition, a motor for driving the lamp head to rotate around the support arm and / or for driving the support arm to rotate around the chassis is also installed in the sealed cavity 1 of the support arm 300. The motor is the source of heat generated inside the stage light support arm. Therefore, the heat generated by the motor inside the sealed cavity 1 can also be used to cause the air pressure inside the sealed cavity 1 to rise, so that the gas density sensor 2 can detect the gas density of the sealed cavity 1 inside the support arm 300 and judge the airtightness inside the support arm 300, which helps to timely discover the abnormality of the airtightness of the sealed cavity 1 and avoid damage to electrical components installed in the sealed cavity 1 due to moisture.

[0044] In addition, the stage light heating element also includes a driving circuit for controlling the operation of the stage light, which is also the source of heat generated inside the stage light. Therefore, the heat generated by the driving circuit inside the sealed cavity 1 can be used to cause the air pressure inside the sealed cavity 1 to rise, so that the gas density sensor 2 can detect the gas density of the sealed cavity 1 inside the stage light and judge the airtightness inside the stage light, which helps to timely discover the abnormal airtightness of the sealed cavity 1 and avoid the electrical components installed in the sealed cavity 1 from being damaged by moisture.

[0045] Preferably, the controller 5 is electrically connected to the driving circuit for controlling the operation of the stage light.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A stage lamp capable of self-checking air tightness by gas density, comprising a controller and a sealed cavity (1) formed inside the stage lamp and suitable for accommodating a heating element of the stage lamp, characterized in that: A gas density sensor (2) is provided inside the sealed cavity (1), and the controller is electrically connected to the gas density sensor (2) so as to detect the density of one or more gases inside the sealed cavity (1) through the gas density sensor (2).

2. The stage lamp with gas density self-testing air tightness according to claim 1, characterized in that: Also includes: A through hole (3) is formed on the outer wall of the sealed cavity (1); A valve device (4) is arranged on the through hole (3) and opens or closes the through hole (3) via the valve device (4).

3. The stage lamp with gas density self-testing air tightness according to claim 2, characterized in that: The valve device (4) comprises a solenoid valve.

4. The stage lamp capable of self-testing air tightness by gas density according to claim 3, characterized in that: The valve device (4) further comprises a waterproof breathable valve, which covers the through hole (3); the solenoid valve is arranged on the valve opening of the waterproof breathable valve to open or close the valve opening of the waterproof breathable valve through the solenoid valve.

5. The stage lamp capable of self-testing air tightness by gas density according to claim 1, characterized in that: A temperature sensor for detecting the internal temperature of the sealed cavity (1) is arranged inside the sealed cavity (1); The temperature sensor is electrically connected to the controller and transmits the detected parameters to the controller.

6. The stage lamp capable of self-testing air tightness by gas density according to claim 1, characterized in that: The sealed cavity (1) is formed inside a lamp head (100) of a stage lamp, and the stage lamp heating element comprises a light source (101) arranged inside the lamp head (100).

7. The stage lamp capable of self-testing air tightness by gas density according to claim 6, characterized in that: The stage lamp heating element also includes a color filter module and / or a pattern disk and / or an aperture and / or a focusing module and / or a cutter and / or a prism module arranged inside the lamp head (100).

8. The stage light capable of self-testing air tightness by gas density according to claim 1, characterized in that: The sealed cavity (1) is formed inside a chassis (200) of a stage light, and the stage light heating element comprises a switching power supply (201) arranged inside the chassis (200).

9. The stage lamp capable of self-testing air tightness by gas density according to claim 1, characterized in that: The sealed cavity (1) is formed inside a support arm (300) of a stage light, and the stage light heating element comprises an electric control element arranged inside the support arm (300).

10. The stage lamp capable of self-testing air tightness by gas density according to any one of claims 1 to 9, characterized in that: The stage light heating element also includes a driving circuit for controlling the operation of the stage light, and the controller is electrically connected to the driving circuit.

11. The stage lamp capable of self-testing air tightness by gas density according to any one of claims 1 to 9, characterized in that: The number of the gas density sensors (2) is several, and each of the gas density sensors (2) is distributed at a different position inside the sealed cavity (1).

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