A communication device speaker assembly detection device

Abstract

The utility model discloses a communication equipment loudspeaker assembly detection device relates to detection technical field, including hall device, switch unit and instruction unit, hall device is used for detecting the magnetic field that magnet in communication equipment loudspeaker produces, has signal output end, switch unit is connected with signal output end, instruction unit is connected with switch unit, wherein, when hall device detects the magnetic field, the level change of signal output end drives switch unit and turns on, and then makes instruction unit work. The utility model passes through hall device non -contact detection loudspeaker magnet magnetic field, and conversion is electric level signal drive switch unit, and then control instruction unit work. The structure has realized the automation, nondestructive testing of loudspeaker assembly state before equipment package, and the intuitive indication has identified the missing phenomenon in time, has avoided the whole machine rework disassembly caused by loudspeaker missing, has improved production efficiency remarkably, and reduced production cost.

Description

Technical Field

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

[0002] In the assembly and production of communication equipment such as mobile phones, a production line model is commonly used, with each workstation having a clearly defined role and performing specific assembly operations. During the continuous operation of the production line, the equipment to be assembled is sequentially transferred to each workstation for the installation and fixing of the corresponding components.

[0003] However, if a speaker is missing from the installation process at a workstation where it should be installed, and subsequent workstations continue with the assembly of structural components covering the speaker, screw fixing, and even irreversible processes like screen adhesive application, the internal anomaly of the missing speaker will only be discovered when the entire equipment enters the testing phase. At this point, since the equipment is already largely packaged, it must be completely disassembled to reinstall the speaker, leading to reduced production efficiency, wasted time and materials, and unnecessary increased production costs.

[0004] Therefore, how to identify whether the speaker has been correctly installed early and accurately during the assembly process, and avoid subsequent rework due to omissions, has become an urgent technical problem to be solved. Utility Model Content

[0005] The technical problem to be solved by this utility model embodiment is: how to identify whether the speaker has been correctly installed as early as possible in the assembly process, so as to avoid subsequent rework due to omissions.

[0006] To address the aforementioned problems, this utility model provides a communication equipment speaker assembly testing device, comprising:

[0007] Hall effect devices are used to detect the magnetic field generated by the magnet in the speaker of communication equipment, and have a signal output terminal.

[0008] The switching unit is connected to the signal output terminal;

[0009] The indicator unit is connected to the switch unit;

[0010] When the Hall device detects a magnetic field, the level change at the signal output terminal drives the switching unit to conduct, thereby enabling the indicator unit to operate.

[0011] A further technical solution is that the switching unit includes a PMOS transistor, the gate of the PMOS transistor is connected to the signal output terminal, the source of the PMOS transistor is connected to the indicator unit, and the drain of the PMOS transistor is grounded.

[0012] A further technical solution is that the indicator unit includes a light-emitting diode, the negative terminal of which is connected to the source of the PMOS transistor, and the positive terminal of which is connected to a preset power supply.

[0013] A further technical solution is that the indicator unit further includes a current-limiting resistor, and the positive terminal of the light-emitting diode is connected to a preset power supply through the current-limiting resistor.

[0014] A further technical solution includes pull-up resistors, which are connected to the signal output terminal and a preset power supply, respectively.

[0015] A further technical solution includes an electrostatic discharge (ESD) protection diode, which is connected to and grounded to the signal output terminal.

[0016] A further technical solution is that the Hall device includes a power supply pin, which is connected to a preset power supply.

[0017] A further technical solution includes a filter capacitor, which is connected to the power supply pin and grounded.

[0018] Compared with the prior art, the technical effects achieved by the embodiments of this utility model include:

[0019] This invention proposes a speaker assembly testing device for communication equipment, comprising a Hall effect device, a switching unit, and an indicating unit. The Hall effect device detects the magnetic field generated by the magnet in the speaker and has a signal output terminal. The switching unit is connected to the signal output terminal, and the indicating unit is connected to the switching unit. When the Hall effect device detects the magnetic field, the level change at the signal output terminal drives the switching unit to conduct, thereby activating the indicating unit. This invention uses a Hall effect device to non-contactly detect the magnetic field of the speaker magnet and converts it into a level signal to drive the switching unit, which in turn controls the indicating unit. This structure achieves automated and non-destructive testing of the speaker assembly status before equipment packaging. It provides a clear indication of any missing components, effectively avoiding rework and disassembly of the entire device due to missing speakers, significantly improving production efficiency and reducing production costs. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0023] Figure 1 This is a structural block diagram of a communication equipment speaker assembly and testing device proposed in an embodiment of the present invention;

[0024] Figure 2 This is a circuit diagram of a communication device speaker assembly and testing device proposed in an embodiment of the present invention.

[0025] Figure Labels

[0026] Hall effect device U1, switch unit 10, indicator unit 20, signal output terminal OUT, PMOS transistor Q1, light-emitting diode LED1, current-limiting resistor R1, pull-up resistor R2, electrostatic discharge protection diode T1, power supply pin VDD, filter capacitor C1. Detailed Implementation

[0027] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Similar component reference numerals in the drawings represent similar components. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0029] It should also be understood that the terminology used in this specification of embodiments of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the present invention. As used in this specification of embodiments of the present invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0030] See Figures 1-2 This utility model provides a communication equipment speaker assembly testing device, including a Hall effect device U1, a switching unit 10, and an indicating unit 20. The specific structure is described below:

[0031] Hall effect device U1 is used to detect the magnetic field generated by the magnet in the speaker of a communication device, and has a signal output terminal OUT; switch unit 10 is connected to the signal output terminal OUT; indicator unit 20 is connected to the switch unit 10; wherein, when the Hall effect device U1 detects the magnetic field, the level change of the signal output terminal OUT drives the switch unit 10 to conduct, thereby making the indicator unit 20 work.

[0032] In practice, the Hall effect sensor U1's sensitivity to magnetic fields enables non-contact detection of the speaker's built-in magnet. This detection method eliminates the need to disassemble the communication equipment casing or alter existing assembly processes, fundamentally avoiding physical damage to precision components or the introduction of new quality risks during detection operations. When the Hall effect sensor U1 senses the magnetic field generated by the speaker magnet, its signal output terminal OUT exhibits a definite level change. This process converts the invisible magnetic field signal into an electrical signal that can be processed by the circuit, providing a stable and reliable basis for subsequent automatic judgment.

[0033] Furthermore, the switching unit 10 receives and responds to the level change signal, providing a fast and accurate electronic switching action that converts the front-end sensing signal into driving capability for the back-end load. The indicating unit 20 operates under the drive of the switching unit 10, providing operators with immediate, clear, and intuitive feedback. For example, by observing the on / off state of the light-emitting diode LED1, the operator can instantly and clearly understand the current speaker installation status within the equipment. This indication method eliminates the need for complex interpretation, greatly reducing the cognitive load on operators and allowing the detection results to be seamlessly integrated into high-speed production cycles.

[0034] This invention enables early and accurate identification of whether a speaker has been correctly installed at critical workstations in the assembly process, especially before irreversible sealing processes such as screwing and gluing. Through its structural design, the device efficiently integrates the detection process into existing production lines, thereby preventing the flow of missing parts to subsequent processes. This completely avoids large-scale disassembly and rework of the entire unit due to later discovery of missing parts, ultimately achieving the comprehensive technical effect of improving production efficiency, reducing production costs, and ensuring product quality.

[0035] In some preferred embodiments, the switching unit 10 includes a PMOS transistor Q1, the gate of which is connected to the signal output terminal OUT, the source of which is connected to the indicator unit 20, and the drain of which is grounded.

[0036] In practical implementation, PMOS transistor Q1, as a voltage-controlled device, provides a switching circuit with advantages such as simple driving, fast switching speed, and low power consumption. When the Hall device U1 outputs a low level, it effectively ensures that the gate-source voltage of PMOS transistor Q1 meets the conduction condition, thereby establishing a low-impedance current path. This explicit conduction mechanism ensures that the indicator unit 20 can be driven quickly and stably, avoiding slow response or indicator flickering problems caused by poor switching characteristics.

[0037] In some preferred embodiments, the indicator unit 20 includes a light-emitting diode LED1, the negative terminal of which is connected to the source terminal of the PMOS transistor Q1, and the positive terminal of which is connected to a preset power supply.

[0038] In practical implementation, LED1, as a mature electro-optical conversion device, has the advantages of long lifespan, low power consumption, and extremely fast lighting speed, and can respond instantly to the state changes of switching unit 10. Connecting the negative terminal of LED1 to the source terminal of PMOS transistor Q1 forms a typical common-drain switching circuit. When PMOS transistor Q1 is turned on, it provides a current loop to ground for LED1, enabling it to emit light.

[0039] In some preferred embodiments, the indicator unit 20 further includes a current-limiting resistor R1, and the positive terminal of the light-emitting diode LED1 is connected to a preset power supply through the current-limiting resistor R1.

[0040] In practical implementation, the LED1, as a current-sensitive device, must have its operating current limited to a safe range. If directly connected to a power supply, excessive current will instantly burn out the diode. By connecting a current-limiting resistor R1 in series, the current flowing through the LED1 can be precisely controlled near its rated operating value. This not only prevents damage to the device due to overcurrent and ensures the long-term reliability of the device, but also maintains a constant brightness by stabilizing the operating current, avoiding interference from brightness fluctuations in operator judgment.

[0041] In some preferred embodiments, the communication device speaker assembly detection device further includes a pull-up resistor R2, which is connected to the signal output terminal OUT and a preset power supply respectively.

[0042] In practical implementation, without the pull-up resistor R2, when the Hall device U1 outputs a high-impedance state or is in a state where no magnetic field is detected, the level of its signal output terminal OUT may be in an ambiguous floating state, making it highly susceptible to external electromagnetic interference, thus causing the switching unit 10 to malfunction. The pull-up resistor R2, by providing a pull-up current to the power supply, forcibly maintains the signal output terminal OUT at a defined high level when it is not actively pulled low by the Hall device U1. This provides the entire detection circuit with a clear, interference-free initial state and static operating point, fundamentally eliminating the risk of false triggering caused by a floating signal line, and significantly improving the anti-interference capability and reliability of the detection device.

[0043] In some preferred embodiments, the communication device speaker assembly detection device further includes an electrostatic discharge protection diode T1, which is connected to the signal output terminal OUT and grounded.

[0044] In practical implementation, in factory production environments, electrostatic discharge can easily accumulate and occur due to human bodies or equipment. If these instantaneous high-voltage pulses are transmitted to the sensitive Hall device U1 through the signal line, they may cause permanent damage. The function of the electrostatic discharge protection diode T1 is that when an electrostatic pulse higher than its breakdown voltage appears at the signal terminal, it will quickly conduct, discharging most of the instantaneous high current to ground, thus acting as a safety valve to protect the expensive Hall device U1 from damage.

[0045] In some preferred embodiments, the Hall device U1 includes a power supply pin VDD, which is connected to a preset power supply. Further, the communication device speaker assembly detection device also includes a filter capacitor C1, which is connected to the power supply pin VDD and grounded.

[0046] In practical implementation, various noise interferences may exist on the power supply line in actual circuits, such as switching noise from other devices and power supply ripple itself. If these interference signals are coupled to the power supply terminal of Hall device U1, they may cause instability in its internal circuitry, and in severe cases, lead to output signal jitter or even misjudgment. The filter capacitor C1 acts as a local energy pool and a high-frequency noise short circuit breaker. It can absorb low-frequency ripple on the power line and filter out high-frequency noise, providing a clean and stable DC operating voltage for Hall device U1.

[0047] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a simple connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0053] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0054] The above description describes specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A communication equipment speaker assembly and testing device, characterized in that, include: Hall effect devices are used to detect the magnetic field generated by the magnet in the speaker of communication equipment, and have a signal output terminal. The switching unit is connected to the signal output terminal; The indicator unit is connected to the switch unit; When the Hall device detects a magnetic field, the level change at the signal output terminal drives the switching unit to conduct, thereby enabling the indicator unit to operate.

2. The communication equipment speaker assembly testing device according to claim 1, characterized in that, The switching unit includes a PMOS transistor, the gate of which is connected to the signal output terminal, the source of which is connected to the indicator unit, and the drain of which is grounded.

3. The communication equipment speaker assembly testing device according to claim 2, characterized in that, The indicator unit includes a light-emitting diode (LED), the negative terminal of which is connected to the source of the PMOS transistor, and the positive terminal of which is connected to a preset power supply.

4. The communication equipment speaker assembly testing device according to claim 3, characterized in that, The indicator unit also includes a current-limiting resistor, and the positive terminal of the light-emitting diode is connected to a preset power supply through the current-limiting resistor.

5. The communication equipment speaker assembly testing device according to claim 1, characterized in that, It also includes pull-up resistors, which are connected to the signal output terminal and a preset power supply, respectively.

6. The communication equipment speaker assembly testing device according to claim 5, characterized in that, It also includes an electrostatic discharge (ESD) protection diode, which is connected to the signal output terminal and grounded.

7. The communication equipment speaker assembly testing device according to claim 1, characterized in that, The Hall effect device includes a power supply pin, which is connected to a preset power supply.

8. The communication equipment speaker assembly testing device according to claim 7, characterized in that, It also includes a filter capacitor, which is connected to the power supply pin and grounded.

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