Loudspeaker testing device

Abstract

The utility model provides a loudspeaker testing device which comprises a frame body, a power box installed at the bottom of the frame body, a power amplifier installed in the middle of the frame body, an audio input unit and a loudspeaker installed at the top of the frame body, and a power output switch respectively connected with the power box and the power amplifier through power lines. The adjusting switch is respectively connected with the power amplifier and the audio input device through audio lines, the power amplifier is connected with the loudspeaker through a loudspeaker line, one side of the loudspeaker is provided with a voltage and current detection assembly, the voltage and current detection assembly is connected with the power amplifier through a voltage line, and the front side of the loudspeaker is provided with a decibel detection assembly. According to the utility model, electrical performance detection and acoustic performance detection can be carried out on the loudspeaker, and detection requirements of clients are met; through the arrangement of the plurality of through hole groups, the electric wire can be preliminarily locked, the electric wire is prevented from slipping, and meanwhile, each through hole group is provided with positive and negative electrode identifiers and corresponding connected instrument identifiers, so that the instrument is prevented from being damaged by disordered and wrong connection of lines.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker testing technology, and in particular to a loudspeaker testing device. Background Technology

[0002] During the speaker manufacturing process, multiple tests are required to ensure product performance and quality, improve sound quality and user experience, and meet market demands and regulatory requirements.

[0003] Patent document CN216357315U discloses a loudspeaker testing device and a multi-waveform loudspeaker testing equipment, belonging to the technical field of loudspeaker testing, and solving the technical problem of high cost in existing loudspeaker testing equipment. The loudspeaker testing device includes an audio chip, an operational amplifier circuit, a power amplifier circuit, a cascaded input interface, and a cascaded output interface. The output terminal of the audio chip and the cascaded input interface are connected to the input terminal of the operational amplifier circuit via a selector switch. The operational amplifier circuit includes a first output terminal and a second output terminal. The first output terminal of the operational amplifier circuit is connected to the input terminal of the power amplifier circuit, and the second output terminal of the operational amplifier circuit is connected to the cascaded output interface. Through the selector switch, the operational amplifier circuit receives audio signals from the audio chip or the cascaded input interface. The first output terminal of the operational amplifier circuit outputs an amplified audio signal and inputs it to the power amplifier circuit. The second output terminal of the operational amplifier circuit outputs an amplified and driven audio signal and inputs it to the cascaded output interface.

[0004] The above solutions have limited testing items, especially failing to meet the requirements for some export testing items. The wiring is messy and prone to incorrect connections that could damage the instruments. Furthermore, the devices are not flexible and have room for optimization. Therefore, it is necessary to provide a loudspeaker testing device to address the shortcomings of the existing technology. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a loudspeaker testing device.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A loudspeaker testing device includes a frame, a power supply box mounted at the bottom of the frame, a power amplifier mounted in the middle of the frame, and an audio input device and a loudspeaker mounted at the top of the frame. A power output switch is connected to the power supply box and the power amplifier via power lines, and the power output switch is used to turn the power on and off and to adjust the output voltage and current. An adjustment switch is connected to the power amplifier and the audio input device via audio lines, and the adjustment switch is used to control the volume output from the audio input device to the power amplifier. The power amplifier and the loudspeaker are connected via loudspeaker lines. A voltage and current detection component is provided on one side of the loudspeaker and is connected to the power amplifier via a voltage line to detect the voltage and current of the power amplifier. A decibel detection component is provided on the front side of the loudspeaker to detect the decibel level emitted by the loudspeaker.

[0008] The present invention is further configured such that the frame includes a base plate, two side plates, a partition 1 and a partition 2, the two ends of the top surface of the base plate are respectively connected to the bottom of a side plate, the two ends of the partition 1 and the partition 2 are respectively connected to the two side plates, and the partition 2 is located above the partition 1.

[0009] The present invention is further configured such that the power supply box is installed on the top surface of the base plate, the power amplifier and the power output switch are installed on the top surface of the first partition, and the audio input device, the adjustment switch, the speaker, the voltage and current detection component and the decibel detection component are installed on the top surface of the second partition.

[0010] The present invention is further configured such that: partition 1 is provided with through hole group 1, through hole group 1 can pass through positive and negative power lines; partition 2 is provided with through hole group 2, through hole group 3 and through hole group 4, through hole group 2 can pass through positive and negative audio lines; through hole group 3 can pass through positive and negative speaker lines; and through hole group 4 can pass through positive and negative voltage lines.

[0011] The present invention is further configured such that through hole group one, through hole group two, through hole group three and through hole group four are all provided with positive and negative polarity markings.

[0012] The present invention is further provided with a limiting frame on the outside of the speaker, which can limit the position of the speaker and prevent the speaker from shaking.

[0013] The present invention is further configured such that a movable component is provided at the bottom of the base plate, the movable component having moving and locking functions, the movable component including a base, rollers and brake pads, the base being connected to the base plate, and the rollers and brake pads being mounted on the base.

[0014] The present invention is further provided with a handle on the top of one side of the frame.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. This utility model can perform electrical and acoustic performance testing on loudspeakers, meeting customer testing requirements.

[0017] 2. This utility model has multiple through-hole groups, which can initially lock the wires to prevent them from slipping. At the same time, each through-hole group is equipped with positive and negative polarity markings and corresponding instrument markings to prevent the wiring from becoming messy, incorrectly connected, or damaging the instrument.

[0018] 3. This utility model can separate instruments by using a partition frame to avoid mutual interference. It also has a movable component that allows the whole unit to be moved. It has both moving and locking functions to prevent damage during instrument handling. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0020] Figure 2 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0021] In the diagram, 1. Frame, 2. Power supply box, 3. Power amplifier, 4. Audio input device, 5. Speaker, 6. Power output switch, 7. Adjustment switch, 8. Voltage and current detection component, 9. Decibel detection component, 10. Base plate, 11. Side plate, 12. Partition 1, 13. Partition 2, 14. Through hole group 1, 15. Through hole group 2, 16. Through hole group 3, 17. Through hole group 4, 18. Limiting bracket, 19. Moving component, 20. Handle. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] Example 1:

[0024] In this embodiment, as Figure 1 As shown, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a loudspeaker testing device.

[0025] The technical solution adopted by this utility model to solve its technical problem is:

[0026] A loudspeaker testing device includes a frame 1, a power supply box 2 installed at the bottom of the frame, a power amplifier 3 installed in the middle of the frame, an audio input device 4 and a loudspeaker 5 installed at the top of the frame, a power output switch 6 connected to the power supply box and the power amplifier via power lines, the power output switch being used to turn the power on and off and to adjust the output voltage and current, an adjustment switch 7 connected to the power amplifier and the audio input device via audio lines, the adjustment switch being used to control the volume output from the audio input device to the power amplifier, the power amplifier and the loudspeaker being connected via loudspeaker lines, a voltage and current detection component 8 provided on one side of the loudspeaker, the voltage and current detection component being connected to the power amplifier via a voltage line, used to detect the voltage and current of the power amplifier, and a decibel detection component 9 provided on the front side of the loudspeaker, used to detect the decibel level emitted by the loudspeaker.

[0027] In this example, the power output switch can turn the power on and off and adjust the output voltage and current. If the power supply box has a built-in power switch, no setup is required. The adjustment switch can adjust the volume of the audio input output to the power amplifier, thereby controlling the volume of the sound emitted by the speaker, which is convenient for judging and detecting the speaker's sound. If the audio input has a built-in adjustment switch, no setup is required. The voltage connection detection component can display the current voltage and current of the power amplifier, and the decibel detection component can display the current decibel level emitted by the speaker. Both detection components should be placed close to the speaker to improve their accuracy.

[0028] In this embodiment, the frame is further configured to include a base plate 10, two side plates 11, a partition 12 and a partition 2 13. The top two ends of the base plate are respectively connected to the bottom of a side plate, and the two ends of the partition 1 and partition 2 are respectively connected to the two side plates. The partition 2 is located above the partition 1.

[0029] In this embodiment, the power supply box is further configured to be installed on the top surface of the base plate, the power amplifier and power output switch are installed on the top surface of the first partition, and the audio input device, adjustment switch, speaker, voltage and current detection component and decibel detection component are installed on the top surface of the second partition.

[0030] In this embodiment, the partition is further configured such that the first partition has a through hole group 14, through hole group 1 can pass through positive and negative power lines, the second partition has a through hole group 2 15, through hole group 3 16 and through hole group 4 17, through hole group 2 can pass through positive and negative audio lines, through hole group 3 can pass through positive and negative speaker lines, and through hole group 4 can pass through positive and negative voltage lines. Each through hole group can pass through each wire and initially lock the wire to prevent the wire from slipping.

[0031] In this embodiment, it is further configured that through-hole group one, through-hole group two, through-hole group three and through-hole group four are equipped with positive and negative polarity markings and corresponding instrument markings to avoid confusion and incorrect connection of the circuits, which could damage the instruments.

[0032] In this embodiment, a limiting frame 18 is provided on the outside of the speaker. The limiting frame can limit the position of the speaker and prevent the speaker from shaking.

[0033] In this embodiment, the bottom of the base plate is further provided with a moving component 19. The moving component has moving and locking functions. The moving component includes a base, rollers and brake pads. The base is connected to the base plate, and the rollers and brake pads are both installed on the base.

[0034] In this embodiment, a handle 20 is provided on the top of one side of the frame, and the device can be moved by gripping the handle.

[0035] Example 2:

[0036] In this embodiment, as Figure 2 As shown, the difference from Embodiment 1 is that the power amplifier is electrically connected to the voltage and current detection component, and the voltage and current detection component is electrically connected to the speaker. When the speaker and power amplifier circuits are connected, the speaker emits sound, and the voltage and current detection component displays the current voltage and current. When the speaker and power amplifier are disconnected, the voltage and current detection component displays zero data.

[0037] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A loudspeaker testing device, characterized in that, The system includes a frame, a power supply box at the bottom, a power amplifier in the middle, and an audio input and speaker at the top. A power output switch is connected to both the power supply box and the power amplifier via power cords, controlling the power supply and adjusting the output voltage and current. An adjustment switch is connected to both the power amplifier and the audio input via audio cords, controlling the volume output from the audio input to the power amplifier. The power amplifier and speaker are connected via speaker wires. A voltage and current detection component is located on one side of the speaker, connected to the power amplifier via a voltage line, used to detect the voltage and current of the power amplifier. A decibel detection component is located on the front of the speaker, used to detect the decibel level emitted by the speaker.

2. The loudspeaker testing device according to claim 1, characterized in that, The frame includes a base plate, two side plates, partition one and partition two. The top two ends of the base plate are connected to the bottom of one side plate, and the two ends of partition one and partition two are connected to the two side plates, with partition two located above partition one.

3. The loudspeaker testing device according to claim 2, characterized in that, The power supply box is installed on the top surface of the base plate, the power amplifier and power output switch are installed on the top surface of the first partition, and the audio input, adjustment switch, speaker, voltage and current detection components and decibel detection components are installed on the top surface of the second partition.

4. A loudspeaker testing device according to claim 2, characterized in that, Partition 1 has a through hole group 1, which can pass through positive and negative power lines. Partition 2 has through hole group 2, through hole group 3 and through hole group 4. Through hole group 2 can pass through positive and negative audio lines, through hole group 3 can pass through positive and negative speaker lines, and through hole group 4 can pass through positive and negative voltage lines.

5. A loudspeaker testing device according to claim 4, characterized in that, Through-hole group 1, through-hole group 2, through-hole group 3 and through-hole group 4 are all equipped with positive and negative polarity markings.

6. A loudspeaker testing device according to claim 1, characterized in that, A limiting bracket is provided on the outside of the speaker to limit the position of the speaker and prevent it from shaking.

7. A loudspeaker testing device according to claim 1, characterized in that, The bottom of the base plate is equipped with a moving component, which has moving and locking functions. The moving component includes a base, rollers and brake pads. The base is connected to the base plate, and the rollers and brake pads are both mounted on the base.

8. A loudspeaker testing device according to claim 1, characterized in that, A handle is located at the top of one side of the frame.

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