Acoustic image infrared instrument

Abstract

The utility model relates to an acoustic image infrared instrument, which comprises a casing, an acoustic image module and an infrared module, a device bin is formed in the casing, a detection window is arranged on the casing, and the acoustic image module and the infrared module are both accommodated in the device bin. And the signal acquisition end of the acoustic image module and the signal acquisition end of the infrared module are arranged at the detection window. The acoustic image infrared instrument provided by the utility model is provided with the acoustic image module and the infrared module, can synchronously detect conditions such as partial discharge and abnormal temperature of target equipment, is convenient for finding early faults and defects of the equipment, and improves the detection accuracy of abnormal conditions of the target equipment.

Description

Technical Field

[0001] The utility model relates to an acoustic and image infrared instrument, which is suitable for industries such as electricity, in particular for partial discharge detection and gas leakage detection in the electricity industry. Background Art

[0002] In the power industry, the presence of abnormalities can be determined by parameters such as array temperature, mainly through conventional manual inspections, power robot infrared module detection, online infrared thermal imager detection, etc. However, in some power sites, there are application scenarios where abnormalities cannot be determined based on temperature information, the most prominent of which is partial discharge abnormality.

[0003] Partial discharge has a corrosive effect on the insulation structure. Continuous partial discharge will gradually expand the deterioration damage of the insulation, eventually shortening the life of the insulation structure, reducing the insulation strength, and even causing the entire insulation to break down, leading to power equipment failure and grid power outage. Common partial discharge detection methods mainly include geoelectric wave detection, ultraviolet imaging and ultra-high frequency detection, but the above technologies / products have certain defects, for example: geoelectric wave detection cannot determine the discharge location, ultra-high frequency detection cannot detect corona and arc, ultraviolet imaging cannot identify the discharge type, and the price is also relatively expensive; At present, there are also means of partial discharge detection based on the acoustic characteristics of partial discharge defects and using acoustic imaging technology. Acoustic imaging technology can clearly locate and identify the type of partial discharge, but the existing acoustic imager detection function is single and the detection accuracy needs to be improved. Utility Model Content

[0004] The utility model relates to an audio-visual infrared instrument, which can at least solve some defects of the prior art.

[0005] The utility model relates to an audio-visual infrared instrument, comprising a casing, an audio-visual module and an infrared module. A device compartment is formed in the casing and a detection window is arranged on the casing. The audio-visual module and the infrared module are both accommodated in the device compartment, and a signal acquisition end of the audio-visual module and a signal acquisition end of the infrared module are both arranged at the detection window.

[0006] As one of the implementation modes, the audio-visual module includes a module housing and an audio-visual module arranged in the module housing. The module housing is fixedly installed at the detection window and a plurality of sound wave collecting holes are arranged on its outer panel.

[0007] As one of the implementation modes, a lens hole is provided on the module housing, and the infrared module includes an infrared lens, and the infrared lens is disposed in the lens hole.

[0008] As one of the implementation modes, the infrared module further includes a lens bracket and a detector assembly, the infrared lens and the detector assembly are both fixed on the lens bracket, and the detector assembly is transmission-connected to the infrared lens.

[0009] As one of the embodiments, the lens hole is a stepped hole and its large aperture section is located on the side close to the device compartment, the lens holder includes a holder body and a guide tube connected to the holder body, the guide tube is embedded in the large aperture section, and the barrel cavity of the guide tube is connected to the small aperture section of the lens hole to form a movable channel for the infrared lens.

[0010] As one of the implementation modes, the lens holder is detachably mounted on the inner side panel of the module housing.

[0011] As one of the implementation modes, the lens hole is arranged at the center of the module housing, and the sound wave collecting holes are distributed around the lens hole.

[0012] As one of the implementation modes, the audio-visual module further includes a visible light imaging module, which is disposed in the module housing, and a signal acquisition end of the visible light imaging module is located on an outer panel of the module housing.

[0013] As one of the implementation modes, a circuit board is further provided in the device compartment, and both the audio-visual module and the infrared module are electrically connected to the circuit board.

[0014] As one of the implementation modes, the housing is further provided with a display screen, and the display screen is electrically connected to the circuit board.

[0015] The utility model has at least the following beneficial effects:

[0016] The acoustic and image infrared instrument provided by the utility model is equipped with an acoustic and image module and an infrared module, which can synchronously detect conditions such as partial discharge and temperature anomaly of the target device, facilitate the discovery of early fault defects of the device, and improve the accuracy of detecting abnormal conditions of the target device.

[0017] The sound and image infrared instrument provided by the utility model adopts modular design for components such as the sound and image module and the infrared module, and operations such as disassembly, assembly and maintenance are convenient and simple, thereby improving the convenience of using the sound and image infrared instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A front view of the sound and image infrared instrument provided by an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the exploded structure of the sound and image infrared instrument provided by the embodiment of the utility model;

[0021] Figure 3 A cross-sectional view of the sound and image infrared instrument provided by an embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the exploded structure of an infrared module provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1-Figure 3 An embodiment of the utility model provides an audio-visual infrared instrument, including a housing 3, an audio-visual module 2 and an infrared module 1. A device compartment is formed in the housing 3 and a detection window 33 is provided on the housing 3. The audio-visual module 2 and the infrared module 1 are both accommodated in the device compartment, and the signal collection end of the audio-visual module 2 and the signal collection end of the infrared module 1 are both provided at the detection window 33.

[0025] In one embodiment, if Figure 2 and Figure 3 The housing 3 includes a front housing 32 and a rear housing 31. The front housing 32 and the rear housing 31 are detachably connected and enclose the device compartment. The detachable connection method includes but is not limited to screw fixing, clamping, etc. During the inspection, the front housing 32 faces the object to be inspected, and the inspection window 33 is set on the front housing 32.

[0026] The audiovisual module 2 and the infrared module 1 can be separately arranged in the device compartment, and two detection windows 33 can be set accordingly, or the detection window 33 can be separated into an audiovisual window and an infrared window. However, as a preferred solution of this embodiment, the audiovisual module 2 and the infrared module 1 are integrated into an integrated module, which can not only significantly reduce the volume of the audiovisual infrared instrument, which is conducive to its miniaturized design, but also facilitates the coupling of audiovisual detection and infrared detection, which can improve the detection accuracy and reliability of the audiovisual infrared instrument; for this solution, only one detection window 33 needs to be opened.

[0027] In one embodiment, the audio-visual module 2 includes a module housing 21 and an audio-visual module 22 disposed in the module housing 21. The module housing 21 is fixedly mounted at the detection window 33 and a plurality of sound wave collecting holes are disposed on its outer panel.

[0028] Among them, the module housing 21 is preferably detachably installed at the detection window 33, and the detachable connection method includes but is not limited to screw fixing, snap-on connection, etc. The connection position is preferably located on the inner side of the casing 3, for example, on the inner wall of the front shell 32.

[0029] For the structure in which the audiovisual module 2 and the infrared module 1 are integrated, it is preferred that the infrared module 1 is integrated into the audiovisual module 2, and the module housing 21 is embedded in the detection window 33, and the shape and size of the detection window 33 are adapted to the shape and size of the module housing 21. The shape of the module housing 21 includes, but is not limited to, circular, square, polygonal, and other shapes.

[0030] The outer panel of the module housing 21 preferably extends out of the detection window 33, which can improve the accuracy of the sound and image detection.

[0031] For the integration of the audiovisual module 2 and the infrared module 1, preferably, Figure 1-Figure 3 A lens hole 25 is provided on the module housing 21 , and the infrared module 1 includes an infrared lens 11 , which is disposed in the lens hole 25 .

[0032] The lens hole 25 passes through the outer panel and the inner panel of the module housing 21 .

[0033] In one embodiment, if Figure 3 and Figure 4 The infrared module 1 further comprises a lens support 12 and a detector assembly 13. The infrared lens 11 and the detector assembly 13 are both fixed on the lens support 12, and the detector assembly 13 is transmission-connected with the infrared lens 11. The infrared lens 11 is preferably threadedly fixed on the lens support 12; the detector assembly 13 can be fixed on the lens support 12 by screws or the like.

[0034] Alternatively, if Figure 4 The lens holder 12 includes a holder body 122 and a guide cylinder 121 connected to the holder body 122. The guide cylinder 121 is connected to and / or guides the infrared lens 11. When the infrared lens 11 is threadedly connected to the lens holder 12, the guide cylinder 121 can be threadedly matched with the infrared lens 11, thereby achieving connection with the infrared lens 11 and guiding the infrared lens 11. The guide cylinder 121 and the holder body 122 can be integrally formed. The detector assembly 13 can be fixed on the holder body 122.

[0035] Correspondingly, by fixedly connecting the lens holder 12 of the infrared module 1 with the module housing 21 of the audio and video module 2, the audio and video module 2 and the infrared module 1 can be integrated and connected into an integral structure; wherein, the lens is preferably fixedly connected to the inner panel of the module housing 21, and further, the lens holder 12 is detachably mounted on the inner panel of the module housing 21, and the detachable connection method includes but is not limited to screw fixing, snap-on connection and the like.

[0036] In one embodiment, the lens hole 25 is a stepped hole and its large aperture section is located on the side close to the device compartment, the guide tube 121 is embedded in the large aperture section, and the barrel cavity of the guide tube 121 is connected to the small aperture section of the lens hole 25 to form a movable channel for the infrared lens 11. In this solution, the infrared lens 11 is completely / substantially located in the lens hole 25, and the bracket body 122 is fixed against the inner side panel of the module housing 21, which can further improve the integration between the audio-visual module 2 and the infrared module 1 and reduce the volume of the audio-visual infrared instrument; and it can ensure the installation stability of the infrared module 1, and the guiding reliability of the infrared lens 11 is also good, thereby improving the working reliability of the infrared module 1 and the accuracy of the detection results.

[0037] The diameter of the barrel cavity of the guide barrel 121 is preferably the same as the diameter of the small aperture section of the lens hole 25 , and the two are smoothly connected to each other, thereby improving the smoothness of the movement of the infrared lens 11 .

[0038] Preferably, if Figure 1-Figure 3 The lens hole 25 is arranged at the center of the module housing 21, and the sound wave collection holes are distributed around the lens hole 25, so that the coupling effect of infrared detection and sound wave detection can be better. When the module housing 21 is of a uniform shape, that is, when the module housing 21 has a central axis, the lens hole 25 and the module housing 21 are preferably coaxial.

[0039] In one embodiment, if Figure 1 and Figure 2 The sound wave collecting holes are distributed into a plurality of linear hole rows 24, each linear hole row 24 includes a plurality of sound wave collecting holes distributed in a spiral line, and each linear hole row 24 concentrically intersects with the above-mentioned lens hole 25 (or is radial relative to the lens hole 25). This distribution form of the sound wave collecting holes can obtain a sufficient number of sound wave collecting holes in a limited space, while ensuring the uniformity of the distribution of the sound wave collecting holes and the sound wave collecting effect.

[0040] More preferably, if Figure 1-Figure 3The audio-visual module 2 also includes a visible light imaging module 23, which is disposed in the module housing 21, and the signal acquisition end of the visible light imaging module 23 is located on the outer panel of the module housing 21. Therefore, the audio-visual infrared instrument provided in this embodiment can realize the fusion of infrared, visible light and audio-visual, and the three detection means can effectively improve the accuracy of detection. The above-mentioned visible light imaging module 23 can be a visible light camera module.

[0041] In one embodiment, if Figure 2 and Figure 3 , a circuit board 4 is also provided in the device compartment, and the audiovisual module 2 and the infrared module 1 are both electrically connected to the circuit board 4. When a visible light imaging module 23 is provided, the audiovisual module 22 and the visible light imaging module 23 are both electrically connected to the circuit board 4, and the circuit board 4 is used to obtain the detection signals sent by the audiovisual module 2 and the infrared module 1, and analyze the partial discharge and temperature abnormality of the target device. The circuit board 4 can be fixed on the front shell 32.

[0042] Furthermore, a power source 6 is provided in the device compartment, and the power source 6 may be a battery. The circuit board 4 is connected to the power source 6 , and power can be supplied to each device through the power source 6 .

[0043] In one embodiment, if Figure 2 and Figure 3 The housing 3 is also provided with a display screen 5, which is electrically connected to the circuit board 4. The display screen 5 is preferably provided on the rear housing 31 to facilitate human-computer interaction; the display screen 5 is preferably a touch screen, and more preferably supports a multi-touch function, which can further enhance the human-computer interaction experience and the application effect of the audio-visual infrared instrument.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An acoustic infrared instrument, characterized in that: It includes a casing, an audio-visual module and an infrared module. A device compartment is formed in the casing and a detection window is provided on the casing. The audio-visual module and the infrared module are both accommodated in the device compartment, and the signal collection end of the audio-visual module and the signal collection end of the infrared module are both provided at the detection window.

2. The sound and image infrared device according to claim 1, characterized in that: The audio-visual module comprises a module shell and an audio-visual module arranged in the module shell. The module shell is fixedly installed at the detection window and a plurality of sound wave collecting holes are arranged on the outer panel thereof.

3. The sound and image infrared device as claimed in claim 2, characterized in that: A lens hole is arranged on the module housing, and the infrared module comprises an infrared lens arranged in the lens hole.

4. The sound and image infrared device as claimed in claim 3, characterized in that: The infrared module also includes a lens bracket and a detector assembly. The infrared lens and the detector assembly are both fixed on the lens bracket, and the detector assembly is transmission-connected to the infrared lens.

5. The sound and image infrared device as claimed in claim 4, characterized in that: The lens hole is a stepped hole and its large aperture section is located on the side close to the device compartment. The lens holder includes a holder body and a guide tube connected to the holder body. The guide tube is embedded in the large aperture section. The barrel cavity of the guide tube is connected to the small aperture section of the lens hole to form a movable channel for the infrared lens.

6. The sound and image infrared device as claimed in claim 4, characterized in that: The lens bracket is detachably mounted on the inner side panel of the module housing.

7. The sound and image infrared device as claimed in claim 3, characterized in that: The lens hole is arranged at the center of the module housing, and the sound wave collecting holes are distributed around the lens hole.

8. The sound and image infrared device as claimed in claim 2, characterized in that: The audio-visual module further comprises a visible light imaging module, which is arranged in the module housing, and a signal collection end of the visible light imaging module is located on an outer panel of the module housing.

9. The sound and image infrared device according to claim 1, characterized in that: A circuit board is also provided in the device compartment, and the audio-visual module and the infrared module are both electrically connected to the circuit board.

10. The sound and image infrared device according to claim 9, characterized in that: The housing is also provided with a display screen, and the display screen is electrically connected to the circuit board.

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