Interference fit reliability detection method, device and electronic equipment

Abstract

The present disclosure provides a method, device and electronic device for detecting the reliability of interference fit, the method comprising: obtaining the matching dimensions of a basin frame and a U-iron in a loudspeaker, and the ultimate stress of the material of the basin frame; wherein the basin frame and the U-iron are to be assembled by interference fit; determining the minimum interference amount and the maximum interference amount of the matching between the basin frame and the U-iron according to the matching dimensions; determining the current contact stress of the basin frame when the basin frame and the U-iron are matched by the maximum interference amount; determining the minimum pushing force required to push the U-iron out of the basin frame when the basin frame and the U-iron are matched by the minimum interference amount; determining the maximum impact force to which the U-iron is subjected when the loudspeaker is subjected to external vibration impact; and detecting whether the interference fit between the basin frame and the U-iron is reliable according to the maximum impact force, the minimum pushing force, the current contact stress and the ultimate stress.

Description

Technical Field

[0001] The present disclosure relates to the technical field of loudspeaker detection, and more specifically, to a method for detecting the reliability of an interference fit, a device for detecting the reliability of an interference fit, and an electronic device. Background Art

[0002] A speaker is an acoustic device that produces sound through sound-to-electricity conversion. There are many types of speakers, and electric speakers are the most commonly used.

[0003] An electrodynamic speaker generally includes a frame and a magnetic circuit system. The U iron 2 in the magnetic circuit system is generally assembled with the frame 1 by means of interference fit. Figure 1 and Figure 2 When the basin frame 1 and the U iron 2 are assembled by interference fit, the relative relationship between the inner diameter 3 of the basin frame and the outer diameter 4 of the U iron can be as follows: Figure 2 shown.

[0004] However, if the interference between the basin frame and the U iron is too small, the bonding force between the basin frame and the U iron will also be small, and the vibration of the speaker may cause the basin frame and the U iron to separate. If the interference between the basin frame and the U iron is too large, the basin frame may produce contact stress exceeding the ultimate strength of its material, causing the basin frame to crack.

[0005] Therefore, it is very valuable to propose a solution for detecting the reliability of the interference fit between the U iron and the basin frame before assembling them. Summary of the Invention

[0006] One object of the present disclosure is to provide a new technical solution for detecting the reliability of the interference fit between the basin frame and the U iron in the speaker.

[0007] According to a first aspect of the present disclosure, a method for detecting the reliability of an interference fit is provided, comprising:

[0008] Obtaining the matching dimensions of the basin frame and the U iron in the speaker, as well as the ultimate stress of the material of the basin frame; wherein the basin frame and the U iron are to be assembled by interference fit;

[0009] Determine the minimum interference and maximum interference between the basin frame and the U iron according to the matching dimensions;

[0010] determining a current contact stress of the basin frame when the basin frame and the U iron are engaged with each other through the maximum interference fit;

[0011] Determining a minimum pushing force required to push the U iron out of the basin frame when the basin frame and the U iron are fitted with the minimum interference fit;

[0012] Determine the maximum impact force on the U iron when the speaker is subjected to external vibration impact;

[0013] Whether the interference fit between the basin frame and the U iron is reliable is detected based on the maximum impact force, the minimum push-out force, the current contact stress and the limit stress.

[0014] Optionally, detecting whether the interference fit between the basin frame and the U iron is reliable based on the maximum impact force, the minimum push-out force, the current contact stress, and the limit stress includes:

[0015] comparing the current contact stress with the limit stress;

[0016] When the current contact stress is greater than or equal to the limit stress, determining that the interference fit between the basin frame and the U iron is unreliable;

[0017] When the current contact stress is less than the limit stress, whether the interference fit between the basin frame and the U iron is reliable is detected according to the maximum impact force and the minimum push-out force.

[0018] Optionally, detecting whether the interference fit between the basin frame and the U iron is reliable according to the maximum impact force and the minimum push-out force includes:

[0019] comparing the maximum impact force and the minimum push-out force;

[0020] When the maximum impact force is less than the minimum pushing force, determining that the interference fit between the basin frame and the U iron is reliable;

[0021] When the maximum impact force is greater than or equal to the minimum pushing force, it is determined that the interference fit between the basin frame and the U iron is unreliable.

[0022] Optionally, the method further includes:

[0023] When the current contact stress is greater than or equal to the limit stress, the fitting dimension is adjusted to reduce the maximum interference.

[0024] Optionally, the method further includes:

[0025] In the case that the maximum impact force is greater than or equal to the minimum push-out force, the fitting dimension is adjusted so that the maximum impact force is less than the minimum push-out force.

[0026] Optionally, the method further includes:

[0027] When the current contact stress is greater than or equal to the limit stress, the step of determining the minimum pushing force and the maximum impact force is stopped.

[0028] Optionally, determining the minimum pushing force required to push the U iron out of the basin frame when the basin frame and the U iron are engaged with each other through the minimum interference fit includes:

[0029] Obtaining a physical property parameter of the material of the basin frame as a first physical property parameter, and obtaining a physical property parameter of the material of the U iron as a second physical property parameter; wherein the physical property parameter is a parameter that affects the force between the basin frame and the U iron;

[0030] The minimum push-out force is determined according to the minimum interference, the first physical property parameter, and the second physical property parameter.

[0031] According to a second aspect of the present disclosure, a device for detecting the reliability of an interference fit is provided, comprising:

[0032] An acquisition module is used to obtain the matching dimensions of the basin frame and the U iron in the speaker, and the ultimate stress of the material of the basin frame; wherein the basin frame and the U iron are to be assembled by interference fit;

[0033] An interference determination module is used to determine the minimum interference and the maximum interference of the basin frame and the U iron according to the matching dimensions;

[0034] a stress determination module, configured to determine a current contact stress of the basin frame when the basin frame and the U iron are fitted with each other through the maximum interference fit;

[0035] a push-out force determination module, configured to determine a minimum push-out force required to push the U iron out of the basin frame when the basin frame and the U iron are fitted with the minimum interference fit;

[0036] An impact force determination module, configured to determine a maximum impact force exerted on the U iron when the speaker is subjected to external vibration impact;

[0037] A reliable detection module is used to detect whether the interference fit between the basin frame and the U iron is reliable based on the maximum impact force, the minimum push-out force, the current contact stress and the limit stress.

[0038] According to a third aspect of the present disclosure, there is provided an electronic device, including:

[0039] The device according to the second aspect of the present disclosure; or

[0040] A processor and a memory, wherein the memory is used to store instructions, and the instructions are used to control the processor to execute the method according to the first aspect of the present disclosure.

[0041] According to a fourth aspect of the present disclosure, a readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method according to the first aspect of the present disclosure is implemented.

[0042] Through the embodiments of the present disclosure, it is not necessary to test the connecting parts of the basin frame and the U-iron assembled by interference fit. Based on the maximum impact force, the minimum push-out force, the current contact stress and the ultimate stress, it is possible to detect whether the interference fit between the basin frame and the U-iron to be assembled is reliable. In this way, the efficiency of detecting the reliability of the interference fit between the basin frame and the U-iron can be improved, the cost of reliability testing can be reduced, and the product qualification rate of the speaker can be improved. In addition, if the interference fit between the basin frame and the U-iron is unreliable, the matching dimensions of the basin frame and the U-iron can be automatically adjusted to ensure a reliable interference fit between the basin frame and the U-iron.

[0043] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0045] Figure 1 A schematic diagram showing the connection structure of the basin frame and the U iron according to an embodiment of the present disclosure is shown.

[0046] Figure 2 Figure 1 A partial enlarged schematic diagram of part A.

[0047] Figure 3 A block diagram showing an example of a hardware configuration of an electronic device that can be used to implement an embodiment of the present disclosure.

[0048] Figure 4 A flow chart of a method for detecting the reliability of interference fit according to an embodiment of the present disclosure is shown.

[0049] Figure 5 A flow chart showing an example of a method for detecting the reliability of interference fit according to an embodiment of the present disclosure.

[0050] Figure 6 A block diagram of a device for detecting interference fit reliability according to an embodiment of the present disclosure is shown.

[0051] Figure 7 A block diagram of an electronic device according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0052] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure.

[0053] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0054] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0055] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0056] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0057] <Hardware Configuration>

[0058] Figure 3 A block diagram showing an example of a hardware configuration of an electronic device that can be used to implement an embodiment of the present disclosure.

[0059] The electronic device 1000 can be a smart phone, a portable computer, a desktop computer, a tablet computer, a server, etc., which is not limited here.

[0060] The electronic device 1000 may include, but is not limited to, a processor 1100, a memory 1200, an interface device 1300, a communication device 1400, a display device 1500, an input device 1600, a speaker 1700, a microphone 1800, and the like. The processor 1100 may be, for example, a central processing unit (CPU), a graphics processing unit (GPU), or a microprocessor (MCU), and is configured to execute a computer program. The computer program may be written using an instruction set such as an x86, Arm, RISC, MIPS, or SSE architecture. The memory 1200 may include, for example, ROM (read-only memory), RAM (random access memory), or a non-volatile memory such as a hard disk. The interface device 1300 may include, for example, a USB interface, a serial interface, or a parallel interface. The communication device 1400 may be capable of wired communication using optical fiber or cable, or wireless communication, and may specifically include WiFi, Bluetooth, 2G / 3G / 4G / 5G, and the like. The display device 1500 may be, for example, an LCD display or a touchscreen display. The input device 1600 may include, for example, a touchscreen, a keyboard, or somatosensory input. The speaker 1700 is used to output audio signals, and the microphone 1800 is used to collect audio signals.

[0061] As used in the embodiments of the present disclosure, the memory 1200 of the electronic device 1000 is used to store a computer program, which is used to control the processor 1100 to operate to implement the method according to the embodiments of the present disclosure. A technician can design the computer program according to the scheme disclosed in the present disclosure. How the computer program controls the processor to operate is well known in the art and will not be described in detail here. The electronic device 1000 can be installed with an intelligent operating system (such as Windows, Linux, Android, IOS, etc.) and application software.

[0062] It should be understood by those skilled in the art that although Figure 3 , multiple devices of the electronic device 1000 are shown; however, the electronic device 1000 of the embodiment of the present disclosure may only involve some of the devices, for example, only the processor 1100 and the memory 1200.

[0063] Hereinafter, various embodiments and examples according to the present invention will be described with reference to the accompanying drawings.

[0064] <Method Example>

[0065] In this embodiment, a method for detecting the reliability of an interference fit is provided. The method is implemented by an electronic device. The electronic device may be an electronic product having a processor and a memory. For example, it may be a desktop computer, a laptop computer, a mobile phone, a tablet computer, etc. In one example, the electronic device may be Figure 3 The electronic device 1000 is shown as providing.

[0066] Figure 4 FIG. 1 is a flow chart of a method for detecting the reliability of interference fit according to an embodiment of the present disclosure. Figure 4 As shown, the interference fit reliability detection method of this embodiment includes the following steps S4100 to S4600:

[0067] Step S4100: Obtain the matching dimensions of the speaker frame and the U iron, as well as the ultimate stress of the frame material.

[0068] The basin frame and the U-iron are assembled using an interference fit. An interference fit utilizes the elasticity of the material to produce a certain degree of deformation. For example, the basin frame is expanded and deformed to fit over the U-iron. When the basin frame recovers, it exerts a tightening force on the U-iron, keeping the basin frame and the U-iron together. Alternatively, the U-iron's outer diameter is tightened to fit into the basin frame. After the U-iron recovers, it is tightly assembled with the basin frame.

[0069] In this embodiment, the matching dimensions of the basin frame and the U-iron may include: the inner diameter of the basin frame, a first tolerance of the basin frame, the outer diameter of the U-iron, and a second tolerance of the U-iron. The first tolerance is the allowable variation of the inner diameter of the basin frame, and the second tolerance is the allowable variation of the outer diameter of the U-iron.

[0070] The ultimate stress of the material of the basin frame can be obtained in advance from its material manufacturer and is determined by the material of the basin frame.

[0071] Step S4200: Determine the minimum interference fit and the maximum interference fit between the basin frame and the U iron according to the fitting dimensions.

[0072] Specifically, the maximum limit size of the basin rack can be obtained based on the inner diameter size of the basin rack and the first tolerance of the basin rack, and the minimum limit size of the U iron can be obtained based on the outer diameter size of the U iron and the second tolerance of the U iron. The difference between the minimum limit size of the U iron and the maximum limit size of the basin rack is the minimum interference, which is the loosest state of the fit between the basin rack and the U iron.

[0073] According to the inner diameter size of the basin frame and the first tolerance of the basin frame, the minimum limit size of the basin frame is obtained. According to the outer diameter size of the U iron and the second tolerance of the U iron, the maximum limit size of the U iron is obtained. The difference between the maximum limit size of the U iron and the minimum limit size of the basin frame is the maximum interference, which is the tightest state of the fit between the basin frame and the U iron.

[0074] Since the basin frame and the U iron are to be assembled by interference fit, the minimum interference amount and the maximum interference amount of the basin frame and the U iron are both positive values.

[0075] For example, the inner diameter of the basin frame is D1, the first tolerance of the basin frame is ±d1, the outer diameter of the U iron is D2, and the second tolerance of the U iron is ±d2. Then, the minimum interference Ymin can be obtained by the following formula 1, and the maximum interference Ymax can be obtained by the following formula 2:

[0076] Ymin=(D2-d2)-(D1+d1) (Formula 1)

[0077] Ymax=(D2+d2)-(D1-d1) (Formula 2)

[0078] Step S4300: Determine the current contact stress of the basin frame when the basin frame and the U iron are fitted with a maximum interference fit.

[0079] In one embodiment of the present disclosure, finite element software may be used in a statics module to analyze the current contact stress of the basin frame when the basin frame and the U iron are fitted with a maximum interference fit.

[0080] Specifically, determining the current contact stress of the basin frame when the basin frame and the U iron are fitted with the maximum interference fit may include the following steps S4310 to S4320:

[0081] Step S4310: obtaining the physical property parameters of the material of the basin frame as the first physical property parameters, and obtaining the physical property parameters of the material of the U iron as the second physical property parameters.

[0082] The physical property parameters are parameters that affect the force between the basin frame and the U iron, and may include, for example, at least one of the elastic modulus, Poisson's ratio, yield strength, fracture strength, and elongation of the material.

[0083] Step S4320: Determine the minimum push-out force based on the maximum interference, the first physical property parameter, and the second physical property parameter.

[0084] In one embodiment of the present disclosure, the three-dimensional assembly model of the basin frame and the U-iron, the maximum interference, the first physical property parameter, and the second physical property parameter can be input into the statics module of the finite element software to obtain the current contact stress of the basin frame when the basin frame and the U-iron are fitted with the maximum interference.

[0085] In another embodiment of the present disclosure, a first mapping function that reflects the mapping relationship between the interference between the basin frame and the U iron, the first physical parameter of the basin frame, the second physical parameter of the U iron, and the contact stress of the basin frame can be pre-constructed, and the maximum interference, the first physical parameter, and the second physical parameter are input into the first mapping function, so that the current contact stress of the basin frame when the basin frame and the U iron are matched with the maximum interference can be obtained.

[0086] Step S4400: Determine the minimum pushing force required to push the U iron out of the basin frame when the basin frame and the U iron are fitted with a minimum interference fit.

[0087] In one embodiment of the present disclosure, finite element software can be used to simulate the process of pushing the U-iron out of the assembly model to obtain the minimum force required to push the U-iron out of the basin frame when the basin frame and the U-iron are fitted with a minimum interference fit. The assembly model is the connector after the basin frame and the U-iron are assembled with a minimum interference fit.

[0088] Specifically, determining the minimum pushing force required to push the U iron out of the basin frame when the basin frame and the U iron are fitted with a minimum interference fit may include steps S4410 to S4420 as follows:

[0089] Step S4410: Obtain first physical property parameters and second physical property parameters.

[0090] The physical property parameters are parameters that affect the force between the basin frame and the U iron, and may include, for example, at least one of the elastic modulus, Poisson's ratio, yield strength, fracture strength, and elongation of the material.

[0091] Step S4420: Determine the minimum push-out force based on the minimum interference, the first physical property parameter, and the second physical property parameter.

[0092] In one embodiment of the present disclosure, the three-dimensional assembly model of the basin frame and the U-iron, the minimum interference, the first physical property parameter, and the second physical property parameter can be input into the finite element software to simulate the process of pushing the U-iron out of the assembly model, and the minimum pushing force required to push the U-iron out of the basin frame when the basin frame and the U-iron are matched with the minimum interference can be obtained.

[0093] In another embodiment of the present disclosure, a second mapping function can be pre-constructed to reflect the mapping relationship between the interference between the basin frame and the U iron, the first physical parameter of the basin frame, the second physical parameter of the U iron, and the minimum pushing force required to push the U iron out of the basin frame. The minimum interference, the first physical parameter, and the second physical parameter are input into the second mapping function, and the minimum pushing force required to push the U iron out of the basin frame when the basin frame and the U iron are matched with the minimum interference can be obtained.

[0094] Step S4500: Determine the maximum impact force on the U iron when the speaker is subjected to external vibration impact.

[0095] In one embodiment of the present disclosure, finite element software may be used to simulate the vibration process of the speaker based on the environmental vibration conditions of the speaker when the speaker is working, and obtain the maximum impact force on the U iron when the speaker is subjected to external vibration shock.

[0096] In this embodiment, a three-dimensional assembly model of the base frame, the U-shaped iron, and the magnets and washers to be mounted on the U-shaped iron, as well as the first and second physical properties and the ambient vibration conditions during speaker operation, can be obtained in advance. This data can then be input into finite element software to simulate the speaker's vibration process and determine the maximum impact force on the U-shaped iron when the speaker is subjected to external vibration. In this embodiment, the physical properties can also include density.

[0097] Step S4600: Check whether the interference fit between the basin frame and the U iron is reliable based on the maximum impact force, the minimum impact force, the current contact stress and the limit stress.

[0098] In one embodiment of the present disclosure, detecting whether the interference fit between the basin frame and the U iron is reliable based on the maximum impact force, the minimum impact force, the current contact stress, and the limit stress may include steps S4610 to S4630 as follows:

[0099] Step S4610: compare the current contact stress and the limit stress.

[0100] Step S4620: When the current contact stress is greater than or equal to the limit stress, it is determined that the interference fit between the basin frame and the U iron is unreliable.

[0101] When the current contact stress is greater than or equal to the limit stress, the interference fit between the basin frame and the U iron may cause the basin frame to crack. Therefore, it can be determined that the interference fit between the basin frame and the U iron is unreliable.

[0102] Furthermore, in one embodiment of the present disclosure, when the current contact stress is greater than or equal to the limit stress, the fitting dimensions are adjusted to reduce the maximum interference.

[0103] In this embodiment, the method of adjusting the matching size may include adjusting at least one of the inner diameter of the basin frame, adjusting the first tolerance of the basin frame, adjusting the outer diameter of the U iron, and adjusting the second tolerance of the U iron.

[0104] For example, the maximum interference may be reduced by at least one of increasing the inner diameter of the basin frame, reducing the first tolerance of the basin frame, reducing the outer diameter of the U iron, and reducing the second tolerance of the U iron.

[0105] Step S4630: When the current contact stress is less than the limit stress, detect whether the interference fit between the basin frame and the U iron is reliable based on the maximum impact force and the minimum push-out force.

[0106] In one embodiment of the present disclosure, if the current contact stress is greater than the limit stress, the interference fit between the basin frame and the U-iron can be determined to be unreliable. Therefore, there is no need to further verify the reliability of the interference fit between the basin frame and the U-iron based on the maximum impact force and the minimum push-out force. In other words, if the current contact stress is greater than the limit stress, the aforementioned steps S4400 and S4500 can be discontinued, i.e., the determination of the minimum push-out force and the maximum impact force can be discontinued.

[0107] In one embodiment of the present disclosure, detecting whether the interference fit between the basin frame and the U iron is reliable based on the maximum impact force and the minimum push-out force may include steps S4631 to S4633 as follows:

[0108] Step S4631, comparing the maximum impact force and the minimum push force.

[0109] Step S4632: When the maximum impact force is less than the minimum push-out force, determine that the interference fit between the basin frame and the U iron is reliable.

[0110] The maximum impact force is less than the minimum push-out force, indicating that the U-iron will not be pushed out of the basin frame when the speaker is subjected to external vibration. Therefore, it can be determined that the interference fit between the basin frame and the U-iron is reliable.

[0111] Step S4633: When the maximum impact force is greater than or equal to the minimum push-out force, it is determined that the interference fit between the basin frame and the U iron is unreliable.

[0112] When the maximum impact force is greater than or equal to the minimum push-out force, the bonding force between the U-iron and the basin frame is small, which will cause the U-iron and the basin frame to separate when the speaker is subjected to external vibration. Therefore, it can be determined that the interference fit between the basin frame and the U-iron is unreliable.

[0113] In this embodiment, the interference fit between the basin frame and the U iron may be determined to be unreliable when the current contact stress is greater than or equal to the limit stress, or when the current contact stress is less than the limit stress and the maximum impact force is greater than or equal to the minimum push-out force; the interference fit between the basin frame and the U iron may be determined to be reliable when the current contact stress is less than the limit stress and the maximum impact force is less than the minimum push-out force.

[0114] When the maximum impact force is greater than or equal to the minimum push-out force, adjust the fitting dimensions so that the maximum impact force is less than the minimum push-out force.

[0115] In this embodiment, the method of adjusting the matching size may include adjusting at least one of the inner diameter of the basin frame, adjusting the first tolerance of the basin frame, adjusting the outer diameter of the U iron, and adjusting the second tolerance of the U iron.

[0116] For example, the maximum interference may be increased by reducing the inner diameter of the basin frame, increasing the first tolerance of the basin frame, increasing the outer diameter of the U iron, or increasing the second tolerance of the U iron, so that the maximum impact force is less than the minimum push-out force.

[0117] In the embodiments of the present disclosure, there is no need to test the connection between the basin frame and the U-iron that have been assembled by interference fit. Based on the maximum impact force, the minimum push-out force, the current contact stress, and the ultimate stress, it is possible to detect whether the interference fit between the basin frame and the U-iron to be assembled is reliable. In this way, the efficiency of detecting the reliability of the interference fit between the basin frame and the U-iron can be improved, the cost of reliability testing can be reduced, and the product qualification rate of the speaker can be improved. In addition, if the interference fit between the basin frame and the U-iron is unreliable, the matching dimensions of the basin frame and the U-iron can be automatically adjusted to ensure a reliable interference fit between the basin frame and the U-iron.

[0118] <Example>

[0119] Figure 5 This is a schematic diagram of an example of a method for detecting the reliability of an interference fit according to an embodiment of the present disclosure.

[0120] like Figure 5 As shown, the method may include steps S5001 to S5010 as shown below:

[0121] Step S5001: Obtain the ultimate stress of the material of the speaker frame.

[0122] Step S5002: Setting the matching dimensions of the speaker frame and the U-iron.

[0123] Step S5003: Determine the minimum interference and maximum interference between the basin frame and the U iron according to the matching dimensions.

[0124] Step S5004: determining the current contact stress of the basin frame when the basin frame and the U iron are fitted with a maximum interference fit.

[0125] Step S5005, comparing whether the current contact stress is less than the limit stress, if yes, executing step S5006; if not, executing step S5010.

[0126] Step S5006: Determine the minimum pushing force required to push the U iron out of the basin frame when the basin frame and the U iron are fitted with a minimum interference fit.

[0127] Step S5007: Determine the maximum impact force on the U iron when the speaker is subjected to external vibration impact.

[0128] Step S5008, comparing whether the maximum impact force is smaller than the minimum pushing force, if so, executing step S5009; if not, executing step S5010.

[0129] Step S5009: Determine whether the interference fit between the basin frame and the U iron is reliable.

[0130] Step S5010: Determine whether the interference fit between the basin frame and the U iron is unreliable.

[0131] In this embodiment, when it is determined that the interference fit between the basin frame and the U iron is unreliable, step S5002 can be re-executed, and steps S5002 to S5010 can be used to determine whether the interference fit between the basin frame and the U iron is reliable under the new fitting size.

[0132] <Device Example>

[0133] In this embodiment, a device 6000 for detecting the reliability of interference fit is provided. Figure 6 As shown, the detection device 6000 includes an acquisition module 6100 , an interference determination module 6200 , a stress determination module 6300 , a push force determination module 6400 , an impact force determination module 6500 and a reliable detection module 6600 . The acquisition module 6100 is used to obtain the matching dimensions of the basin frame and U iron in the loudspeaker, as well as the ultimate stress of the basin frame material; wherein, the basin frame and U iron are to be assembled by interference fit; the interference amount determination module 6200 is used to determine the minimum interference amount and maximum interference amount of the basin frame and U iron according to the matching dimensions; the stress determination module 6300 is used to determine the current contact stress of the basin frame when the basin frame and U iron are matched with the maximum interference amount; the push-out force determination module 6400 is used to determine the minimum push-out force required to push the U iron out of the basin frame when the basin frame and U iron are matched with the minimum interference amount; the impact force determination module 6500 is used to determine the maximum impact force that the U iron is subjected to when the loudspeaker is subjected to external vibration impact; the reliable detection module 6600 is used to detect whether the interference fit between the basin frame and the U iron is reliable based on the maximum impact force, the minimum push-out force, the current contact stress and the ultimate stress.

[0134] In one embodiment of the present disclosure, the reliable detection module 6600 may also be used to:

[0135] Compare the current contact stress with the ultimate stress;

[0136] When the current contact stress is greater than or equal to the limit stress, it is determined that the interference fit between the basin frame and the U iron is unreliable;

[0137] When the current contact stress is less than the limit stress, the reliability of the interference fit between the basin frame and the U iron is detected based on the maximum impact force and the minimum push-out force.

[0138] In one embodiment of the present disclosure, detecting whether the interference fit between the basin frame and the U iron is reliable based on the maximum impact force and the minimum push-out force includes:

[0139] Compare the maximum impact force and the minimum push-out force;

[0140] When the maximum impact force is less than the minimum push-out force, make sure the interference fit between the basin frame and the U iron is reliable;

[0141] When the maximum impact force is greater than or equal to the minimum push-out force, it is determined that the interference fit between the basin frame and the U iron is unreliable.

[0142] In one embodiment of the present disclosure, the detection device 6000 further includes:

[0143] A module used to adjust the mating dimensions to reduce the maximum interference when the current contact stress is greater than or equal to the limit stress.

[0144] In one embodiment of the present disclosure, the detection device 6000 further includes:

[0145] A module used to adjust the fitting dimensions so that the maximum impact force is less than the minimum push-out force when the maximum impact force is greater than or equal to the minimum push-out force.

[0146] In one embodiment of the present disclosure, the detection device 6000 further includes:

[0147] A module is configured to stop executing the step of determining the minimum push-out force and the maximum impact force if the current contact stress is greater than or equal to the limit stress.

[0148] In one embodiment of the present disclosure, determining the minimum push-out force required to push the U iron out of the basin frame when the basin frame and the U iron are fitted with a minimum interference fit includes:

[0149] Obtaining the physical property parameters of the material of the basin frame as the first physical property parameters, and obtaining the physical property parameters of the material of the U iron as the second physical property parameters; wherein the physical property parameters are parameters that affect the force between the basin frame and the U iron;

[0150] The minimum push-out force is determined according to the minimum interference, the first physical property parameter, and the second physical property parameter.

[0151] Those skilled in the art should understand that the interference fit reliability detection device 6000 can be implemented in various ways. For example, the interference fit reliability detection device 6000 can be implemented by configuring the processor with instructions. For example, the instructions can be stored in a ROM, and when the device is started, the instructions are read from the ROM into the programmable device to implement the interference fit reliability detection device 6000. For example, the interference fit reliability detection device 6000 can be solidified into a dedicated device (such as an ASIC). The interference fit reliability detection device 6000 can be divided into independent units, or they can be combined together for implementation. The interference fit reliability detection device 6000 can be implemented by one of the various implementation methods described above, or can be implemented by a combination of two or more of the various implementation methods described above.

[0152] In this embodiment, the interference fit reliability detection device 6000 can have multiple implementation forms. For example, the interference fit reliability detection device 6000 can be a functional module running in any software product or application that provides interference fit reliability detection services, or it can be a peripheral embedded component, plug-in, patch, etc. of these software products or applications, or it can also be these software products or applications themselves.

[0153] <Electronic Equipment Example>

[0154] The present disclosure also provides an electronic device 7000 .

[0155] In one embodiment, the electronic device 7000 may include the aforementioned interference fit reliability detection device 6000 .

[0156] In another embodiment, the electronic device 7000 may further include: Figure 7 The processor 7100 and the memory 7200 shown are used to store executable instructions; the instructions are used to control the processor 7100 to execute the above-mentioned interference fit reliability detection method.

[0157] In this embodiment, the electronic device 7000 can be any electronic product with a processor 7100 and a memory 7200, such as a mobile phone, a tablet computer, a PDA, a desktop computer, a laptop computer, a workstation, a game console, or a server.

[0158] <Readable Storage Medium Embodiment>

[0159] In this embodiment, a readable storage medium is further provided, on which a computer program is stored. When the computer program is executed by a processor, it implements the method for detecting the reliability of interference fit as described in any embodiment of the present disclosure.

[0160] The present disclosure may be a system, method and / or computer program product. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the present disclosure.

[0161] A computer-readable storage medium can be a tangible device that can hold and store instructions for use by an instruction execution device. A computer-readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination thereof. As used herein, a computer-readable storage medium is not to be construed as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through an electrical wire.

[0162] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to be stored in the computer-readable storage medium in each computing / processing device.

[0163] The computer program instructions for performing the operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages such as Smalltalk, C++, and conventional procedural programming languages such as "C" language or similar programming languages. Computer-readable program instructions may be executed entirely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., utilizing an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of the computer-readable program instructions. The electronic circuit may execute the computer-readable program instructions, thereby realizing various aspects of the present disclosure.

[0164] Various aspects of the present disclosure are described herein with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each block of the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer-readable program instructions.

[0165] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device is generated that implements the functions / actions specified in one or more blocks in the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, where these instructions cause the computer, programmable data processing device, and / or other device to operate in a specific manner. Thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing various aspects of the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0166] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0167] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of an instruction, and the module, program segment or part of the instruction contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, implementation by software, and implementation by a combination of software and hardware are all equivalent.

[0168] The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terms used herein are selected to best explain the principles of the embodiments, their practical applications, or technical improvements in the marketplace, or to enable other persons skilled in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A method for detecting the reliability of interference fit, characterized in that: include: Obtaining the matching dimensions of the basin frame and the U iron in the speaker, as well as the ultimate stress of the material of the basin frame; wherein the basin frame and the U iron are to be assembled by interference fit; Determine the minimum interference and maximum interference between the basin frame and the U iron according to the matching dimensions; determining a current contact stress of the basin frame when the basin frame and the U iron are engaged with each other through the maximum interference fit; Determining a minimum pushing force required to push the U iron out of the basin frame when the basin frame and the U iron are fitted with the minimum interference fit; Determine the maximum impact force exerted on the U iron when the speaker is subjected to external vibration impact; detecting whether the interference fit between the basin frame and the U iron is reliable according to the maximum impact force, the minimum push-out force, the current contact stress, and the limit stress; Detecting whether the interference fit between the basin frame and the U iron is reliable according to the maximum impact force, the minimum push-out force, the current contact stress, and the limit stress includes: comparing the current contact stress with the limit stress; When the current contact stress is greater than or equal to the limit stress, determining that the interference fit between the basin frame and the U iron is unreliable; When the current contact stress is less than the limit stress, detecting whether the interference fit between the basin frame and the U iron is reliable according to the maximum impact force and the minimum push-out force; The detecting whether the interference fit between the basin frame and the U iron is reliable according to the maximum impact force and the minimum push-out force includes: comparing the maximum impact force and the minimum push-out force; When the maximum impact force is less than the minimum pushing force, determining that the interference fit between the basin frame and the U iron is reliable; When the maximum impact force is greater than or equal to the minimum pushing force, it is determined that the interference fit between the basin frame and the U iron is unreliable.

2. The method according to claim 1, characterized in that The method further comprises: When the current contact stress is greater than or equal to the limit stress, the fitting dimension is adjusted to reduce the maximum interference.

3. The method according to claim 1, characterized in that The method further comprises: In the case that the maximum impact force is greater than or equal to the minimum push-out force, the fitting dimension is adjusted so that the maximum impact force is less than the minimum push-out force.

4. The method according to claim 1, wherein The method further comprises: When the current contact stress is greater than or equal to the limit stress, the step of determining the minimum pushing force and the maximum impact force is stopped.

5. The method according to claim 1, wherein The determining of the minimum pushing force required to push the U iron out of the basin frame when the basin frame and the U iron are fitted with the minimum interference fit includes: Obtaining a physical parameter of the material of the basin frame as a first physical parameter, and obtaining a physical parameter of the material of the U iron as a second physical parameter; wherein the physical parameter is a parameter that affects the force between the basin frame and the U iron; The minimum pushing force is determined according to the minimum interference, the first physical parameter, and the second physical parameter.

6. A device for detecting the reliability of interference fit, characterized in that: include: An acquisition module is used to obtain the matching dimensions of the basin frame and the U iron in the speaker, and the ultimate stress of the material of the basin frame; wherein the basin frame and the U iron are to be assembled by interference fit; An interference determination module is used to determine the minimum interference and the maximum interference of the basin frame and the U iron according to the matching dimensions; a stress determination module, configured to determine a current contact stress of the basin frame when the basin frame and the U iron are fitted with each other through the maximum interference fit; a push-out force determination module, configured to determine a minimum push-out force required to push the U iron out of the basin frame when the basin frame and the U iron are fitted with the minimum interference fit; An impact force determination module, configured to determine a maximum impact force exerted on the U iron when the speaker is subjected to external vibration impact; a reliability detection module, configured to detect whether the interference fit between the basin frame and the U iron is reliable based on the maximum impact force, the minimum push-out force, the current contact stress, and the limit stress; The reliable detection module is further used for: comparing the current contact stress with the limit stress; When the current contact stress is greater than or equal to the limit stress, determining that the interference fit between the basin frame and the U iron is unreliable; When the current contact stress is less than the limit stress, detecting whether the interference fit between the basin frame and the U iron is reliable according to the maximum impact force and the minimum push-out force; The detecting whether the interference fit between the basin frame and the U iron is reliable according to the maximum impact force and the minimum push-out force includes: comparing the maximum impact force and the minimum push-out force; When the maximum impact force is less than the minimum pushing force, determining that the interference fit between the basin frame and the U iron is reliable; When the maximum impact force is greater than or equal to the minimum pushing force, it is determined that the interference fit between the basin frame and the U iron is unreliable.

7. An electronic device, characterized in that: include: The device according to claim 6; or, A processor and a memory, wherein the memory is used to store instructions, and the instructions are used to control the processor to execute the method according to any one of claims 1 to 5.

8. A readable storage medium, characterized in that: A computer program is stored thereon, which implements the method according to any one of claims 1 to 5 when executed by a processor.

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