Multi-channel loudspeaker tester

Abstract

The utility model discloses a multipath loudspeaker tester which comprises a control machine, a first sampling machine, a second sampling machine, a third sampling machine and an equipment display stand. A middle bearing frame is arranged in the middle of the equipment display stand, a bearing plate is arranged on the left side of the middle bearing frame, and three strake plates are sequentially arranged on the right side of the middle bearing frame from top to bottom. The equipment display stand is adopted as a main body structure, the control machine and the sampling machine are integrated in the same stand body, the integrated design not only saves space, but also reduces connecting wire harnesses between instruments, so that the disorder phenomenon caused by too many wire harnesses is reduced, and in order to further optimize wire harness management, the equipment display stand is convenient to use. The wire harnesses are arranged and guided through the channels, it is ensured that all the wire harnesses are arranged in order according to a set route, inspection and maintenance of the wire harnesses are greatly facilitated, and therefore the testing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test equipment technical field especially relates to a multichannel loudspeaker tester. BACKGROUND

[0002] With audio equipment becoming an indispensable part in daily life, loudspeaker as an important part of audio system, its performance directly affects the performance of sound quality. Therefore, loudspeaker manufacturers and research institutions need to detect the quality of loudspeaker to ensure its performance to meet the design requirements, in this process, multichannel loudspeaker tester emerges as the times require and becomes the key equipment of loudspeaker quality guarantee. Loudspeaker tester is mainly used for detecting various performance parameters of loudspeaker, such as frequency response, distortion, power, impedance etc. Through the measurement of these parameters, the performance of loudspeaker can be comprehensively evaluated, in addition, loudspeaker tester can also be used for debugging, optimization and fault diagnosis in the process of loudspeaker research and development. In the testing process, a plurality of devices need to be connected together, because of numerous connection harnesses, it is easy to cause line confusion, affect the test efficiency, and easily shield plug-in interface, which is not conducive to operation and maintenance. SUMMARY

[0003] To solve the above technical problems, the utility model provides a multichannel loudspeaker tester. In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This part is not a general review, nor is it intended to determine the key / important elements or delineate the scope of protection of these embodiments. Its only purpose is to present some concepts in simple form as a prelude to the detailed description that follows.

[0004] The utility model adopts the following technical scheme:

[0005] Provide a kind of multichannel loudspeaker tester, it include: control machine, first sampling machine, second sampling machine, third sampling machine and equipment display stand;The middle part position of the equipment display stand is provided with middle support, the left side of the middle support is provided with bearing plate, the right side of the middle support is sequentially provided with three layer column plates from top to bottom;The back side of the middle support is provided with total guide groove, the right side of the total guide groove is provided with the guide groove that extends to the direction of the three layer column plates respectively;The back right side of the equipment display stand is provided with total lead-out groove, the left side of the total lead-out groove is sequentially provided with three guide-in grooves from top to bottom.

[0006] Further, the control machine is arranged on the bearing plate, the first sampling machine is arranged on the layer column plate above, the second sampling machine is arranged on the layer column plate in the middle, and the third sampling machine is arranged on the layer column plate below;Positioning pads are arranged on the bearing plate and the three layer column plates.

[0007] Further, the total guide groove, the branch guide groove, the total lead-out groove and the lead-in groove are all provided with a wire harness fixing clamp; the wire harness fixing clamp is composed of two clamping bodies arranged symmetrically, the clamping body is arc-shaped, an inclined surface is formed at the top end of the clamping body, and a base is arranged at the bottom end of the clamping body, and a groove is formed at the bottom of the base.

[0008] Further, the total guide groove, the branch guide groove, the total lead-out groove and the lead-in groove are all provided with a wire harness fixing clamp; the wire harness fixing clamp is composed of two clamping bodies arranged symmetrically, the clamping body is arc-shaped, an inclined surface is formed at the top end of the clamping body, and a base is arranged at the bottom end of the clamping body, and a groove is formed at the bottom of the base.

[0009] Further, the positioning base plate comprises a plate body, mounting plates and two limiting tables arranged side by side, the mounting plates are arranged on both sides of the plate body, and screw holes are formed in the mounting plates, and the limiting tables are arranged on the upper surface of the plate body, and an anti-skid pad is arranged on the upper surface of the plate body.

[0010] Further, the front of the control machine is provided with an LCD liquid crystal display screen, a drawer and a panel, the panel is provided with a lock, an indicator light and a signboard, and the rear of the panel is provided with a power switch, a USB interface, a shutdown shortcut key and a restart shortcut key.

[0011] Further, the back of the control machine is provided with a signal output interface, an external signal input interface, a network interface, a communication interface, a fan window, a power socket, a fuse seat, number paper, a power column and an audible and visual alarm.

[0012] Further, the front of the first sampling machine, the second sampling machine and the third sampling machine is provided with a sampling machine indicator light, an instrument switch, a channel interface and a state indicator light.

[0013] Further, the back of the first sampling machine, the second sampling machine and the third sampling machine is provided with an instrument signal output port, an external power amplifier connection port, a measured piece connection port, a host computer signal connection port, a communication input interface, a communication output interface and a power input interface.

[0014] The utility model brings the beneficial effect: the present application adopts equipment display stand as the main body structure, integrates the control machine and the sampling machine in the same frame, the integrated design not only saves the space, but also reduces the connecting wire harness between instruments, thereby reducing the confusion phenomenon caused by too many wire harnesses, and in order to further optimize the wire harness management, the wire harness is arranged and guided through each groove, and each wire harness is arranged in the predetermined route, so that the inspection and maintenance of the wire harness are facilitated, and the test efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Figure 1 is a front structure schematic diagram of a multi-channel loudspeaker tester of the present application;

[0017] Figure 2 is a back structure schematic diagram of a multi-channel loudspeaker tester of the present application;

[0018] Figure 3 is a structure schematic diagram of a wire harness fixing clamp of the present application;

[0019] Figure 4 is a structure schematic diagram of a wire harness groove positioning lock of the present application;

[0020] Figure 5 is a schematic diagram of the present application after the control machine opening panel. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in detail below with reference to the drawings. It should be clear that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] As shown in Figures 1-5 In some illustrative embodiments, a multi-channel loudspeaker tester is provided, which realizes the optimization of wire harness management, improves the test efficiency, reduces the operation difficulty and maintenance cost through the integration of the equipment display rack 500 and the channel wire harness arrangement guide, and specifically includes: a control machine 100, a first sampling machine 200, a second sampling machine 300, a third sampling machine 400 and an equipment display rack 500.

[0023] The equipment display rack 500 is a U-shaped frame with an upper opening. A middle support 510 is arranged at the middle position of the equipment display rack 500, which divides the internal space of the U-shaped frame into left and right two spaces. A bearing plate 520 is arranged at the left side of the middle support 510, and three layer column plates are arranged in order from top to bottom at the right side of the middle support 510. Among the three layer column plates, the layer column plate at the top is recorded as a first layer column plate 530, the layer column plate at the middle is recorded as a second layer column plate 540, and the layer column plate at the bottom is recorded as a third layer column plate 550.

[0024] The control machine 100 is responsible for sending test signals, receiving sampling data and processing analysis data. The control machine 100 is arranged on the bearing plate 520 and located at the left side of the U-shaped frame. The first sampling machine 200, the second sampling machine 300 and the third sampling machine 400 are used to receive the output signals of the loudspeakers and convert them into electrical signals for the control machine 100 to analyze. The three sampling machines are arranged on the three layer plates, i.e. the first layer plate 530, the second layer plate 540 and the third layer plate 550, respectively, at the right side of the equipment display rack 500. Through the design of the U-shaped frame and the middle bearing frame 510, the space is effectively utilized, and the control machine 100 and the multiple sampling machines are integrated in a compact structure, saving the test site space. Moreover, the layout of the control machine and the sampling machines is clear, and the test personnel can quickly find the corresponding equipment to operate.

[0025] The bearing plate 520 and the three layer plates are provided with positioning base plates 600. The positioning base plates 600 are used to position the control machine and the sampling machines, and specifically include a plate body 610, a mounting plate 620 and two limiting tables 630 arranged side by side.

[0026] The plate body 610 provides a stable placement platform for the control machine and the sampling machines. The mounting plate 620 is arranged at both sides of the plate body 610, and screw holes are formed in the mounting plate 620 for fixing the positioning base plate 600 on the bearing plate 520 or the layer plate by bolts. The two limiting tables 630 are arranged side by side on the upper surface of the plate body 610, and are used to limit the positions of the control machine and the sampling machines, so as to ensure that the equipment will not shift when fixed. The upper surface of the plate body 610 is further provided with anti-slip pads 640, which provide additional friction to prevent the control machine and the sampling machines from sliding during operation.

[0027] The back side of the middle bearing frame 510 is provided with a main guide groove 560 for receiving the wire harness from the control machine 100 and serving as the main channel of the wire harness. The right side of the main guide groove 560 is provided with branch guide grooves 570 extending in the direction of the three layer plates, respectively. The branch guide grooves 570 are connected with the layer plates and communicate with the main guide groove 560, and are used to guide the wire harness from the main guide groove 560 to each sampling machine. The right side of the back of the equipment display rack 500 is provided with a main lead-out groove 580 for collecting all the wire harnesses led out from the sampling machines and leading them out to external equipment. The left side of the main lead-out groove 580 is sequentially provided with three lead-in grooves 590 from top to bottom. The grooves of the three lead-in grooves 590 are located above the three layer plates, respectively, and are used to receive the wire harnesses led out from the sampling machines and lead them into the main lead-out groove 580, or the wire harnesses led out from the signal machines enter the lead-in grooves 590 and then enter other lead-in grooves 590.

[0028] The harness led out by the control machine 100 first enters the general guide groove 560, and the harness is guided to the corresponding layer plate according to the connection requirement through the branch guide groove 570 in the general guide groove 560, and the harness is led out through the slot of the branch guide groove 570 and connected to the sampling machine on the corresponding layer plate. The harness led out by the sampling machine enters the guide-in groove 590 behind it, the guide-in groove 590 collects and guides the harness to the general leading-out groove 580 or other guide-in grooves 590, and finally connects to other devices or test systems as required.

[0029] The groove structure designed for the control machine and the sampling machine in the application can effectively arrange and guide the harness, reduce the confusion and intersection of the harness, not only improve the neatness of the equipment, but also make the maintenance and troubleshooting more convenient, and reduce the potential safety hazards caused by the loosening or dragging of the harness. In addition, the groove structure designed for the control machine and the sampling machine in the application makes full use of the space of the equipment display rack, so that the overall structure is more compact, and the overall performance and operation efficiency of the equipment are improved.

[0030] The harness fixing clamp 700 is arranged on the general guide groove 560, the branch guide groove 570, the general leading-out groove 580 and the guide-in groove 590, and is used to prevent the harness in each groove from accidentally falling out. Specifically, the harness fixing clamp 700 is composed of two symmetrical clamp bodies 710, the clamp body 710 is curved outward in an arc shape, which is convenient for clamping and fixing the harness. The top end of the clamp body 710 is provided with an inclined surface, and the top ends of the two clamp bodies 710 are spaced apart by a certain distance to form a slot for the harness, so that the harness can be smoothly inserted into the slot between the two clamp bodies, and the harness can be prevented from sliding out after being fixed.

[0031] The bottom end of the clamp body 710 is provided with a base 720, and the bottom of the base 720 is provided with a groove 730, and the groove wall of each groove structure is embedded in the groove, so that the harness fixing clamp 700 is stably installed. The harness fixing clamp 700 is tightly embedded with the groove wall of the general guide groove 560, the branch guide groove 570, the general leading-out groove 580 and the guide-in groove 590 through the groove 730 of the base 720, so that the harness fixing clamp 700 is firmly installed at any required position of the groove structure. The harness is inserted through the slot of the clamp body 710, and the arc design and inclined surface of the clamp body 710 ensure that the harness is stably clamped and prevented from moving or falling off during use.

[0032] The wire harness groove positioning lock 800 is arranged at the groove opening of the total guide groove 560, the branch guide groove 570, the total lead-out groove 580 and the lead-in groove 590. The wire harness groove positioning lock 800 comprises a lock rod 810 and a lock block 820. One end of the lock rod 810 is hinged to one side groove wall at the groove opening, so that the lock rod 810 can rotate around the hinge point. The other end of the lock rod 810 is provided with a lock tongue 830, which is designed to be inserted into the lock slot 840 on the lock block 820, thereby achieving the locking function. The lock block 820 is arranged on the other side groove wall at the groove opening, and the lock slot 840 adapted to the lock tongue 830 is formed on the lock block 820.

[0033] When the wire harness is placed in the total guide groove 560, the branch guide groove 570, the total lead-out groove 580 or the lead-in groove 590 and fixed by using the wire harness fixing clamp 700, the wire harness groove positioning lock 800 is used to further ensure that the wire harness will not be displaced due to external force. The operation steps are as follows: align the lock tongue 830 with the lock slot 840 on the lock block 820, rotate the lock rod 810 to insert the lock tongue 830 into the lock slot 840, thereby locking the wire harness. The hinge design of the lock rod 810 and the groove wall allows it to rotate within a certain range, facilitating the insertion and removal of the lock tongue 830. The wire harness groove positioning lock 800 provides additional fixation, ensuring that the wire harness remains stable in the groove and is not affected by vibration or external force. The rotating design of the lock rod 810 makes the wire harness groove positioning lock 800 easy to operate, and locking and unlocking can be completed without complex tools.

[0034] The front of the control machine 100 is provided with an LCD liquid crystal display screen 111, a drawer 112 and a panel 113. The LCD liquid crystal display screen 111 is used to display the setting of parameters, test conditions and test results, etc. The drawer 112 is built-in keyboard and mouse. The panel 113 is provided with a door lock 114, an indicator light 115 and a signboard 116. The door lock 114 is opened by a key, and the operations such as power on / off, USB reading, etc. can be performed. The indicator light 115 is used to display the working state of the instrument, and the signboard 116 is used to display the model and manufacturer of the instrument.

[0035] The rear of the panel 113 is provided with a power switch 117, a USB interface 118, a shutdown shortcut key 119 and a restart shortcut key 120. The power switch 117 is used to turn on or off the power of the instrument. The USB interface 118 is used to connect a PC to transmit audio files or test data. The shutdown shortcut key 119 is used to turn off the industrial computer. The restart shortcut key 120 is used to restart the industrial computer.

[0036] The back of the control machine 100 is provided with a signal output interface 121, an external signal input interface 122, a network interface 123, a communication interface 124, a fan window 125, a power socket 126, a fuse holder 127, a number paper 128, a power column 129 and an audible and visual alarm 130.

[0037] The signal output interface 121 is used for controlling the signal connection between the main control machine and the sampling machines. The external signal input interface 122 is used for accessing the external signal source. The network interface 123 is used for the interconnection of multiple instruments when networking through a router, and realizes the communication with the computer. The communication interface 124 is connected with the communication end of the sampling machine. The fan window 125 is used for heat dissipation, and maintains the normal temperature of the instrument. The power socket 126 is used for inputting the alternating voltage. The fuse holder 127 is used for installing the power supply fuse, and protects the instrument. The number paper 128 indicates the factory number of the instrument. The power column 129 is connected with the instrument shell, and can be used for protecting or shielding the ground connection.

[0038] The front surface of the first sampling machine, the second sampling machine and the third sampling machine is provided with the sampling machine indicating lamp 211, the instrument switch 212, the channel interface 213 and the state indicating lamp 214. The sampling machine indicating lamp 211 is used for displaying the sampling machine grouping. The instrument switch 212 is used for opening or closing the power supply of the instrument.

[0039] The back surface of the first sampling machine, the second sampling machine and the third sampling machine is provided with the instrument signal output port 215, the external power amplifier connection port 216, the measured piece connection port 217, the main control machine signal connection port 218, the communication input interface 219, the communication output interface 220 and the power input interface 221. The signal output port 215 is connected with the input end of the external power amplifier. The external power amplifier connection port 216 is connected with the output end of the external power amplifier. The measured piece connection port 217 is connected with the measured piece. The main control machine signal connection port 218 is connected with the main control machine signal. The power input interface 221 is used for inputting the alternating voltage.

[0040] The above only describes the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A multi-channel loudspeaker tester characterized by, Include: Control machine, first sampling machine, second sampling machine, third sampling machine and equipment display rack; the middle part of the equipment display rack is provided with a middle support, the left side of the middle support is provided with a bearing plate, the right side of the middle support is sequentially provided with three layer plates from top to bottom; the back side of the middle support is provided with a total guide groove, the right side of the total guide groove is provided with a branch guide groove extending to the direction of the three layer plates; the back right side of the equipment display rack is provided with a total lead-out groove, and the left side of the total lead-out groove is sequentially provided with three lead-in grooves from top to bottom.

2. A multi-way loudspeaker tester according to claim 1, wherein, The control machine is arranged on the bearing plate, the first sampling machine is arranged on the upper layer plate, the second sampling machine is arranged on the middle layer plate, and the third sampling machine is arranged on the lower layer plate; the bearing plate and the three layer plates are all provided with positioning pads.

3. A multi-way loudspeaker tester according to claim 1 or 2, characterized in that The total guide groove, the branch guide groove, the total lead-out groove and the lead-in groove are all provided with wire harness fixing clamps; the wire harness fixing clamp is composed of two symmetrical clamp bodies, the clamp body is arc-shaped, the top end of the clamp body is provided with an inclined surface, and the bottom end of the clamp body is provided with a base, and the bottom of the base is provided with a groove.

4. A multi-way loudspeaker tester according to claim 3, wherein, The total guide groove, the branch guide groove, the total lead-out groove and the lead-in groove are all provided with wire harness groove positioning locks; the wire harness groove positioning lock comprises a lock rod and a lock block, one end of the lock rod is hinged to one side groove wall at the groove opening, the other end of the lock rod is provided with a lock tongue, and the lock block is arranged on the other side groove wall at the groove opening, and the lock block is provided with a lock groove matched with the lock tongue.

5. A multi-way loudspeaker tester according to claim 2, wherein, The positioning pad comprises a plate body, a mounting plate and two limiting tables arranged side by side; the mounting plate is arranged on both sides of the plate body, and screw holes are formed in the mounting plate; the limiting table is arranged on the upper surface of the plate body, and the upper surface of the plate body is also provided with a non-slip pad.

6. A multi-way loudspeaker tester according to claim 5, wherein, The front of the control machine is provided with an LCD liquid crystal display, a drawer and a panel; the panel is provided with a lock, an indicator light and a signboard, and the rear of the panel is provided with a power switch, a USB interface, a shutdown shortcut key and a restart shortcut key.

7. A multi-way loudspeaker tester according to claim 6, wherein, The back of the control machine is provided with a signal output interface, an external signal input interface, a network interface, a communication interface, a fan window, a power socket, a fuse seat, a number paper, a power column and an audible and visual alarm.

8. A multi-way loudspeaker tester according to claim 7, wherein, The front of the first sampling machine, the second sampling machine and the third sampling machine is provided with a sampling machine indicator light, an instrument switch, a channel interface and a state indicator light.

9. A multi-way loudspeaker tester according to claim 8, wherein, The back of the first sampling machine, the second sampling machine and the third sampling machine is provided with an instrument signal output port, an external power amplifier connection port, a measured piece connection port, a host computer signal connection port, a communication input interface, a communication output interface and a power input interface.

Images