A testing device for an acoustic signature fire detector for an energy storage cabinet.

Abstract

This utility model relates to the field of energy storage system technology and discloses a testing device for an acoustic signature fire detector for an energy storage cabinet. The device includes a test platform with multiple equally spaced slots along its length. Each slot has a baffle hinged to its inner wall. A sliding groove is located at the center of the test platform along its length, and a sliding stage is installed inside the groove. This testing device for an acoustic signature fire detector for an energy storage cabinet, through the combined use of the baffles and a noise simulator, can simulate the complex sound field environment formed by sound reflection and interference from obstacles in the enclosed space inside the energy storage cabinet. This ensures that the testing scenario for the acoustic signature fire detector matches the real-world application scenario. Furthermore, the complexity of the sound propagation path and the sound field distribution can be flexibly adjusted by removing the number of baffles, thereby simulating the noise environment of the energy storage cabinet under different equipment layouts and varying degrees of spatial openness.

Description

Technical Field

[0001] This utility model relates to the field of energy storage system technology, specifically a testing device for an energy storage cabinet acoustic signature fire detector. Background Technology

[0002] Energy storage systems are technological devices or systems that can store electrical, thermal, chemical, or other forms of energy and release them for use when needed. Their core function is to transfer energy over time or space through energy conversion and storage, thereby balancing supply and demand, improving energy efficiency, enhancing system stability, and supporting the large-scale integration of renewable energy. However, due to the inherent characteristics of energy storage devices and the complex operating environment, energy storage systems pose certain fire risks during operation. For example, under abnormal conditions such as overcharging, over-discharging, short circuits, and high temperatures, electrochemical energy storage devices may experience thermal runaway, leading to violent chemical reactions inside the battery, generating large amounts of heat and flammable and explosive gases, potentially causing fires or even explosions. Voiceprint fire detectors offer a novel and more effective solution for fire detection in energy storage systems. Based on voiceprint recognition technology, these detectors can identify unique voiceprint patterns generated in specific fire scenarios by extracting and analyzing the features of sound signals. In energy storage systems, different types of fires generate voiceprint signals with different frequencies, intensities, and characteristics during their occurrence.

[0003] Currently, testing equipment for acoustic fire detectors typically incorporates or imports typical fire acoustic sample libraries to simulate sound characteristics under different scenarios (such as wood burning, electrical short circuit explosions, etc.) in order to verify the detector's accuracy in recognizing fire acoustics. However, during testing, existing equipment generally lacks the ability to simulate the internal environment of energy storage cabinets. Therefore, there is an urgent need for a testing device for acoustic fire detectors in energy storage cabinets to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a testing device for an energy storage cabinet acoustic fire detector, which has advantages such as simulating the testing environment and improving testing results, thus solving the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a testing device for an energy storage cabinet acoustic fire detector, comprising a testing platform, wherein the surface of the testing platform is provided with a plurality of equally spaced slots along its length, and each slot has a baffle hinged to its inner wall; a sliding groove is provided at the center of the testing platform along its length, and a sliding table is provided inside the sliding groove; a noise simulator is fixedly installed on the upper surface of the sliding table.

[0006] An environmental simulation component is installed on one side of the test bench along its length.

[0007] Furthermore, a lead screw is rotatably connected to the surface of the test bench along its length via a bearing seat, a sliding table is threadedly connected to the lead screw, and a motor is fixedly installed at the upper end of the test bench, with the output end of the motor fixedly connected to one end of the lead screw.

[0008] With the above scheme, motor one can drive lead screw one to rotate, thereby driving the sliding table to move linearly along the slide groove in the length direction of the test platform, which makes it convenient to adjust the position of the noise simulator to simulate the effect of noise sources at different locations on the detector.

[0009] Furthermore, the environmental simulation component includes a protective frame, with multiple dustproof nets fixedly connected to the outer surface of the protective frame, and coils fixedly installed on the inner wall of the protective frame. A carrier is fixedly installed on the surface of the test bench, and a vibration module is fixedly installed on the inner bottom wall of the carrier. The output end of the vibration module is fixedly connected to the carrier.

[0010] The above scheme, through the environmental simulation components, can comprehensively simulate the complex and ever-changing environment inside the energy storage cabinet, making the test results closer to the actual application scenario, and effectively improving the accuracy and reliability of the soundprint fire detector in identifying the fire soundprint of the energy storage cabinet.

[0011] Furthermore, the environmental simulation component also includes a fan fixedly installed on the side of the protective frame, and an inlet pipe is fixedly connected to the upper end of the protective frame.

[0012] The above scheme allows the fan to simulate the airflow inside the energy storage cabinet. By adjusting the fan speed, different airflow intensities can be simulated to test the voiceprint recognition effect of the detector under the influence of airflow. The inlet pipe can be used to release dust or special gases into the protective frame to simulate different environments, such as smoke generated inside the energy storage cabinet due to a fault, to further enrich the test scenarios.

[0013] Furthermore, a speaker is fixedly connected to the inner wall of the groove.

[0014] Using the above method, the loudspeaker can play pre-recorded fire sound pattern samples of the energy storage cabinet. Since the loudspeaker is located between multiple baffles, the noise at the playback point can be reflected and interfered between the baffles, simulating the sound propagation effect that is closer to the enclosed space inside the energy storage cabinet, and more accurately testing the detector's ability to identify fire sound patterns.

[0015] Furthermore, an L-shaped support frame is fixedly installed on the surface of the test bench. A second lead screw is rotatably connected to the inner top wall of the support frame. A threaded sleeve is fixedly connected to one side of the protective frame. The threaded sleeve is threadedly connected to the second lead screw. A second motor is fixedly installed on the surface of the test bench. The output end of the second motor is fixedly connected to the bottom end of the second lead screw.

[0016] Through the above scheme, motor two can drive screw two to rotate, and drive the protective frame to move up and down in the vertical direction through the threaded sleeve. When the protective frame contacts the test bench, it can form an enclosed space to prevent dust inside the protective frame from polluting the outside during the test. By raising the protective frame, the detector inside the protective frame can be taken out.

[0017] Furthermore, a limiting slide rod is fixedly installed on the surface of the test bench, and a limiting slide cylinder is fixedly installed on the other side of the protective frame. The limiting slide cylinder and the limiting slide rod are slidably connected in the vertical direction.

[0018] The above scheme, through the combined use of the limiting slide bar and the limiting slide cylinder, can provide guidance and limit for the up and down movement of the guard frame, ensuring the stability of the guard frame during movement and preventing the guard frame from shifting or shaking during movement.

[0019] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0020] This testing device for an energy storage cabinet acoustic signature fire detector, through the combined use of baffles and a noise simulator, can simulate the complex sound field environment formed by sound propagation in the enclosed space inside the energy storage cabinet due to the reflection and interference of obstacles. This makes the test scenario faced by the acoustic signature fire detector match the real application scenario. Furthermore, the complexity of the sound propagation path and the sound field distribution can be flexibly adjusted by removing the number of baffles, thereby simulating the noise environment of the energy storage cabinet under different equipment layouts and different degrees of openness of space. The distance between the noise simulator and the detector can be adjusted. By changing the distance, the impact of noise sources in different locations on the detector can be simulated, thereby comprehensively evaluating the detector's anti-interference ability and acoustic signature recognition accuracy under different spatial locations.

[0021] Setting up an environmental simulation component can simulate the complex environment inside the energy storage cabinet, covering a variety of key environmental factors such as electromagnetic fields, vibration, airflow, dust, and special gases. By controlling the intensity, frequency, and changes of these environmental factors, test conditions that closely resemble the actual operating environment of the energy storage cabinet can be constructed, effectively verifying the performance stability, anti-interference ability, and voiceprint recognition accuracy of the soundprint fire detector under various extreme and complex working conditions. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the overall structure of this application;

[0023] Figure 2 This is a schematic diagram of the overall structure of this application. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the overall structure of this application. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the protective frame structure of this application.

[0026] In the picture:

[0027] 1. Test bench; 2. Groove; 3. Baffle; 4. Slide; 5. Sliding table; 6. Noise simulator;

[0028] 7. Environment simulation components;

[0029] 701. Protective frame; 702. Dustproof net; 703. Coil; 704. Bearing component; 705. Vibration module; 706. Fan; 707. Inlet pipe;

[0030] 8. Lead screw one; 9. Motor one; 10. Speaker; 11. Support frame; 12. Lead screw two; 13. Threaded sleeve; 14. Motor two; 15. Limiting slide rod; 16. Limiting slide cylinder. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figures 1-4 The test device for an energy storage cabinet acoustic fire detector in this embodiment includes a test bench 1. The surface of the test bench 1 has multiple slots 2 that are evenly distributed along its length. Each slot 2 has a baffle 3 hinged to its inner wall. A sliding groove 4 is provided at the center of the test bench 1 along its length. A sliding table 5 is provided inside the sliding groove 4. A noise simulator 6 is fixedly installed on the upper surface of the sliding table 5.

[0033] An environmental simulation component 7 is provided on one side of the test bench 1 along its length.

[0034] The test platform 1 is rotatably connected to a lead screw 8 via a bearing seat along its length. The sliding table 5 is threadedly connected to the lead screw 8. A motor 9 is fixedly installed at the upper end of the test platform 1. The output end of the motor 9 is fixedly connected to one end of the lead screw 8. The motor 9 can drive the lead screw 8 to rotate, thereby driving the sliding table 5 to move linearly along the slide groove 4 in the length direction of the test platform 1. This facilitates the adjustment of the position of the noise simulator 6 to simulate the influence of noise sources at different locations on the detector.

[0035] The environmental simulation component 7 includes a protective frame 701. Multiple dustproof nets 702 are fixedly connected to the outer surface of the protective frame 701, and coils 703 are fixedly installed on the inner wall of the protective frame 701. Specifically, the coils 703 are Helmholtz coils 703, used to simulate the electromagnetic environment inside the energy storage cabinet. By adjusting the magnitude and frequency of the input current, electromagnetic fields of different intensities and varying frequencies can be simulated to test the performance stability of the detector under electromagnetic interference. The Helmholtz coils 703 are a pair of coaxial, parallel circular coils 703 with a spacing precisely equal to the radius of the coils 703. When current in the same direction is applied, a highly uniform magnetic field is generated in the central region between the two coils 703. A support member 704 is fixedly installed on the surface of the test platform 1. A vibration module 705 is fixedly installed on the inner bottom wall of the support member 704. The output end of the vibration module 705 is fixedly connected to the support member 704. The vibration module 705 can generate vibrations of different frequencies and amplitudes to simulate... The vibration of the energy storage cabinet during operation or under external impact is tested to assess the accuracy of the acoustic signature recognition and structural stability of the detector under vibration. The environmental simulation component 7 comprehensively simulates the complex and variable environment inside the energy storage cabinet, making the test results closer to actual application scenarios. This effectively improves the accuracy and reliability of the acoustic signature fire detector in identifying the energy storage cabinet's acoustic signature during fires. The environmental simulation component 7 also includes a fan 706 fixedly installed on the side of the protective frame 701, with an inlet pipe 707 fixedly connected to the upper end of the protective frame 701. The fan 706 can simulate the airflow inside the energy storage cabinet. By adjusting the speed of the fan 706, different intensities of airflow can be simulated to test the detector's acoustic signature recognition effect under the influence of airflow. The inlet pipe 707 can introduce dust or special gases into the protective frame 701 to simulate different environments, such as smoke generated inside the energy storage cabinet due to a malfunction, further enriching the test scenarios.

[0036] A speaker 10 is fixedly connected to the inner wall of the slide 4. The speaker 10 can play pre-recorded fire sound pattern samples of the energy storage cabinet. Since the speaker 10 is located between multiple baffles 3, the noise at the playback point can be reflected and interfered between the baffles 3, simulating the sound propagation effect that is closer to the enclosed space inside the energy storage cabinet, and more accurately testing the detector's ability to identify fire sound patterns. An L-shaped support frame 11 is fixedly installed on the surface of the test platform 1. A lead screw 12 is rotatably connected to the inner top wall of the support frame 11. A threaded sleeve is fixedly connected to one side of the protective frame 701. Sleeve 13 is threadedly connected to screw 12. Motor 14 is fixedly installed on the surface of test bench 1. The output end of motor 14 is fixedly connected to the bottom end of screw 12. Motor 14 can drive screw 12 to rotate. Through sleeve 13, it drives the guard frame 701 to move up and down in the vertical direction. When the guard frame 701 contacts the test bench 1, it can form an enclosed space to prevent dust inside the guard frame 701 from polluting the outside during the test. The detector inside the guard frame 701 can be taken out by the rise of the guard frame 701.

[0037] A limiting slide rod 15 is fixedly installed on the surface of the test bench 1, and a limiting slide cylinder 16 is fixedly installed on the other side of the protective frame 701. The limiting slide cylinder 16 and the limiting slide rod 15 are slidably connected in the vertical direction. The cooperation between the limiting slide rod 15 and the limiting slide cylinder 16 can provide guidance and limiting for the up and down movement of the protective frame 701, ensuring the stability of the protective frame 701 during the movement and preventing the protective frame 701 from shifting or shaking during the movement.

[0038] It should be noted that the noise simulator 6 is a device or software tool that can generate, control or simulate specific types of noise signals. It is mainly used for testing, calibration, scientific research or environmental simulation. The noise simulator generates noise signals through electronic circuits or digital algorithms and uses hardware devices such as speakers and vibrators to convert electrical signals into sound waves.

[0039] The working principle of the above embodiment is as follows: First, when testing the detector, the detector is placed on the support 704. Then, the motor 9 drives the lead screw 8 to rotate, so that the lead screw 8 drives the sliding table to slide along the slot 2, adjusting the distance between the noise simulator 6 and the detector. Then, according to the test requirements, the required baffle 3 is rotated so that the baffle 3 is located between the detector and the noise simulator 6. Then, the noise simulator 6 can simulate the noise during a fire. The detector senses the noise after being blocked by multiple baffles 3, and tests the performance of the detector. During the test, the noise can be further blocked by adjusting the number of baffles 3. By blocking the noise, the environment of noise blocking by the internal components of the energy storage cabinet can be simulated.

[0040] When it is necessary to simulate the internal environment of the energy storage cabinet, motor 14 drives the lead screw to rotate, causing lead screw 12 to drive threaded sleeve 13 to move the protective frame 701 to cover the detector, forming an enclosed space around the detector. Subsequently, coil 703 is energized to generate a magnetic field, which is used to simulate the electromagnetic environment inside the energy storage cabinet. At the same time, vibration module 705 transmits vibration to the detector through carrier 704, thereby simulating the working vibration of the internal components of the energy storage cabinet. During the test, dust or smoke can be injected into the protective frame 701 through the injection tube to simulate different environments. Then, fan 706 is started to blow air into the protective frame 701 to form a dust or smoke environment, thereby testing the voiceprint recognition effect of the detector in a dusty environment.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for a soundprint fire detector of an energy storage cabinet, comprising a test bench (1), characterized in that: The test bench (1) has multiple slots (2) that are evenly distributed along its length. Each slot (2) has a baffle (3) hinged to its inner wall. The test bench (1) has a sliding groove (4) along its length at its center. A sliding table (5) is provided inside the sliding groove (4). A noise simulator (6) is fixedly installed on the upper surface of the sliding table (5). An environmental simulation component (7) is provided on one side of the test bench (1) along its length.

2. The test device for a voice-print fire detector of an energy storage cabinet according to claim 1, characterized in that: The test bench (1) is rotatably connected to a lead screw (8) along its length via a bearing seat. The sliding table (5) is threadedly connected to the lead screw (8). A motor (9) is fixedly installed at the upper end of the test bench (1). The output end of the motor (9) is fixedly connected to one end of the lead screw (8).

3. The test device for a voice-print fire detector of an energy storage tank according to claim 1, characterized in that: The environmental simulation component (7) includes a protective frame (701), with multiple dustproof nets (702) fixedly connected to the outer surface of the protective frame (701), and a coil (703) fixedly installed on the inner wall of the protective frame (701). A carrier (704) is fixedly installed on the surface of the test bench (1), and a vibration module (705) is fixedly installed on the inner bottom wall of the carrier (704). The output end of the vibration module (705) is fixedly connected to the carrier (704).

4. The test device for a soundprint fire detector of an energy storage tank according to claim 3, characterized in that: The environmental simulation component (7) also includes a fan (706) fixedly installed on the side of the protective frame (701), and an inlet pipe (707) is fixedly connected to the upper end of the protective frame (701).

5. The test device for a voice-print fire detector of an energy storage tank according to claim 1, characterized in that: A speaker (10) is fixedly connected to the inner wall of the chute (4).

6. The test device for a soundprint fire detector of an energy storage tank according to claim 3, characterized in that: The surface of the test bench (1) is fixedly mounted with an L-shaped support frame (11). The inner top wall of the support frame (11) is rotatably connected with a second lead screw (12). A threaded sleeve (13) is fixedly connected to one side of the guard frame (701). The threaded sleeve (13) is threadedly connected to the second lead screw (12). The surface of the test bench (1) is fixedly mounted with a second motor (14). The output end of the second motor (14) is fixedly connected to the bottom end of the second lead screw (12).

7. The test device for a voice-print fire detector of an energy storage tank according to claim 1, characterized in that: A limiting slide rod (15) is fixedly installed on the surface of the test bench (1), and a limiting slide cylinder (16) is fixedly installed on the other side of the protective frame (701). The limiting slide cylinder (16) and the limiting slide rod (15) are slidably connected in the vertical direction.

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