Detection Method, Device, Electronic Device and Storage Medium for Service Life of Connector

Abstract

The embodiments of the present application provide a method, a device, an electronic device and a storage medium for detecting the service life of a connector, which realizes the detection of the service life of the connector. Compared with obtaining the service life of the connector through simulation testing at the time of factory shipment or giving a service life for one type of connector, in the present application, the actual vibration intensity of the connector to be detected during the actual working process and the percentage of each specified duty cycle in the total usage time are obtained, so that the service life can be measured individually for each connector, and the actual working process of the connector to be detected is considered, and the detection result of the service life is more accurate.

Description

Technical Field

[0001] The present application relates to the field of mechanical technology, and particularly to a method, device, electronic device and storage medium for detecting the service life of a connector. Background Art

[0002] With the continuous and rapid development of mobile communication technology, 5G (the 5th generation mobile communication system) will drive a new round of revolution in mobile communication technology and industry due to its characteristics of high speed, low latency and high capacity. At the same time, with the increase in the amount of data processed by 5G base station products, the heat generated during the working process will also increase, which also raises the requirements for heat dissipation. It has become inevitable to introduce high-speed fans into 5G base station products.

[0003] As an essential supporting component of 5G base station products, detecting the service life of the connector of a high-speed fan is of great significance for maintaining the normal use of devices such as 5G base stations. However, the connector is vulnerable to the influence of the external working environment and working conditions, and as the connector of a high-speed fan, it will surely work in an environment of high-frequency micro-vibration for a long time. Therefore, how to detect the service life of the connector has become an urgent problem to be solved. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a method, device, electronic device and storage medium for detecting the service life of a connector, so as to realize the detection of the service life of the connector. The specific technical solutions are as follows:

[0005] In a first aspect, the embodiments of the present application provide a method for detecting the service life of a connector, and the method includes:

[0006] Obtain the wear rate corresponding to the material type of the to-be-detected corrosion-resistant coating of the to-be-detected connector, the initial equivalent thickness of the to-be-detected corrosion-resistant coating, and the intercept of the to-be-detected corrosion-resistant coating;

[0007] Respectively obtain the actual vibration intensity of the to-be-detected connector at each specified duty cycle during the actual working process, and determine the percentage of each specified duty cycle in the total service time;

[0008] According to the wear rate, initial equivalent thickness, intercept of the to-be-detected corrosion-resistant coating, the actual vibration intensity at each specified duty cycle, and the percentage of each specified duty cycle in the total service time, calculate the service life of the to-be-detected corrosion-resistant coating, and obtain the service life of the to-be-detected connector.

[0009] In a possible implementation manner, the obtaining the wear rate corresponding to the material type of the to-be-detected corrosion-resistant coating of the to-be-detected connector, the initial equivalent thickness of the to-be-detected corrosion-resistant coating, and the intercept of the to-be-detected corrosion-resistant coating includes:

[0010] Obtain the material type of the anti-corrosion coating to be detected of the connector to be detected, and obtain the target material type;

[0011] When the target material type includes at least two materials, determine the initial equivalent thickness of the anti-corrosion coating to be detected according to the coating thickness and hardness of each material in the anti-corrosion coating to be detected;

[0012] Take the wear rate and intercept of the sample anti-corrosion coating of the sample connector of the same model as the connector to be detected measured in advance as the wear rate and intercept of the anti-corrosion coating to be detected.

[0013] In a possible implementation manner, when the target material type includes at least two materials, determining the initial equivalent thickness of the anti-corrosion coating to be detected according to the coating thickness and hardness of each material in the anti-corrosion coating to be detected includes:

[0014] When the target material type includes at least two materials, respectively obtain the hardness and thickness of each material in the anti-corrosion coating to be detected, and determine a reference material among the materials;

[0015] For each other material except the reference material among the materials, calculate the relative hardness of the other material with respect to the reference material according to the hardness of the other material and the hardness of the reference material;

[0016] For each other material except the reference material among the materials, calculate the relative thickness of the other material with respect to the reference material according to the thickness of the other material and the relative hardness;

[0017] Determine the initial equivalent thickness of the anti-corrosion coating to be detected according to the relative thicknesses and the thickness of the reference material.

[0018] In a possible implementation manner, the method further includes:

[0019] Obtain the initial equivalent thickness of the sample anti-corrosion coating of multiple sample connectors of the same model as the connector to be detected;

[0020] Measure the sample vibration intensity of each sample connector under specified working conditions and the remaining equivalent thickness of each sample anti-corrosion coating;

[0021] Obtain the wear rate and intercept of the sample anti-corrosion coating according to the initial equivalent thickness of each sample anti-corrosion coating, the remaining equivalent thickness of each sample anti-corrosion coating, and the sample vibration intensity of each sample.

[0022] In a possible implementation manner, measuring the sample vibration intensity of each of the sample connectors under specified working conditions and the remaining equivalent thickness of each of the sample corrosion-resistant coatings includes:

[0023] For each sample connector, determine the working conditions when the vibration intensity of this sample connector is the maximum as the specified working conditions of this sample connector;

[0024] For each sample connector, measure the sample vibration intensity of this sample connector under its specified working conditions and the remaining equivalent thickness of the sample corrosion-resistant coating of this sample connector.

[0025] In a possible implementation manner, obtaining the wear rate and intercept of the sample corrosion-resistant coating according to the initial equivalent thickness, the remaining equivalent thickness of each of the sample corrosion-resistant coatings, and the sample vibration intensity of each of the samples includes:

[0026] According to the initial equivalent thickness, the remaining equivalent thickness of each of the sample corrosion-resistant coatings, and the sample vibration intensity of each of the samples, according to the following formula:

[0027] LnD = μLnV + ε

[0028] Calculate the wear rate and intercept of the sample corrosion-resistant coating, where D is the wear equivalent thickness of the sample corrosion-resistant coating, calculated according to the initial equivalent thickness and the remaining equivalent thickness of the sample corrosion-resistant coating, V is the sample vibration intensity, μ is the wear rate of the sample corrosion-resistant coating, and ε is the intercept of the sample corrosion-resistant coating.

[0029] In a possible implementation manner, calculating the service life of the to-be-detected corrosion-resistant coating and obtaining the service life of the to-be-detected connector according to the wear rate, the initial equivalent thickness, the intercept, the actual vibration intensity under each of the specified duty cycles, and the percentage of each of the specified duty cycles in the total usage time includes:

[0030] According to the wear rate, the initial equivalent thickness, the intercept, the actual vibration intensity under each of the specified duty cycles, and the percentage of each of the specified duty cycles in the total usage time, according to the following formula:

[0031]

[0032] Calculate the service life of the to-be-detected corrosion-resistant coating and obtain the service life of the to-be-detected connector, where θ is the service life of the to-be-detected corrosion-resistant coating, α i is the percentage of the i-th specified duty cycle in the total usage time, is the wear rate of the to-be-detected corrosion-resistant coating, V iis the actual vibration intensity at the i-th specified duty cycle, is the intercept of the anti-corrosion coating to be detected, D initial is the initial equivalent thickness of the anti-corrosion coating to be detected.

[0033] Second, the embodiment of the present application provides a detection device for the service life of a connector. The device includes:

[0034] A to-be-detected parameter acquisition module, configured to acquire the wear rate corresponding to the material type of the to-be-detected anti-corrosion coating of the to-be-detected connector, the initial equivalent thickness of the to-be-detected anti-corrosion coating, and the intercept of the to-be-detected anti-corrosion coating;

[0035] An actual vibration intensity acquisition module, configured to respectively acquire the actual vibration intensity of the to-be-detected connector at each specified duty cycle during the actual working process, and determine the percentage of each specified duty cycle in the total usage time;

[0036] A service life determination module, configured to calculate the service life of the to-be-detected anti-corrosion coating according to the wear rate, the initial equivalent thickness, the intercept, the actual vibration intensity at each specified duty cycle, and the percentage of each specified duty cycle in the total usage time of the to-be-detected anti-corrosion coating, so as to obtain the service life of the to-be-detected connector.

[0037] In a possible implementation manner, the to-be-detected parameter acquisition module includes:

[0038] A target material type acquisition sub-module, configured to acquire the material type of the to-be-detected anti-corrosion coating of the to-be-detected connector, and obtain a target material type;

[0039] An initial equivalent thickness determination sub-module, configured to determine the initial equivalent thickness of the to-be-detected anti-corrosion coating according to the coating thickness and hardness of each material in the to-be-detected anti-corrosion coating when the target material type includes at least two materials;

[0040] A wear rate determination sub-module, configured to use the wear rate and intercept of the sample anti-corrosion coating of a sample connector of the same model as the to-be-detected connector measured in advance as the wear rate and intercept of the to-be-detected anti-corrosion coating.

[0041] In a possible implementation manner, the initial equivalent thickness determination sub-module is specifically configured to:

[0042] When the target material type includes at least two materials, respectively acquire the hardness and thickness of each material in the to-be-detected anti-corrosion coating, and determine a reference material among the materials;

[0043] For each of the other materials in the respective materials except the reference material, calculate the relative hardness of the other material with respect to the reference material according to the hardness of the other material and the hardness of the reference material;

[0044] For each of the other materials in the respective materials except the reference material, calculate the relative thickness of the other material with respect to the reference material according to the thickness of the other material and the relative hardness;

[0045] Determine the initial equivalent thickness of the corrosion-resistant coating to be detected according to the respective relative thicknesses and the thickness of the reference material.

[0046] In a possible implementation, the device further includes:

[0047] A sample parameter acquisition module, configured to acquire the initial equivalent thickness of the sample corrosion-resistant coatings of a plurality of sample connectors of the same model as the connector to be detected;

[0048] A sample parameter measurement module, configured to measure the sample vibration intensity of each of the sample connectors under specified working conditions and the remaining equivalent thickness of each of the sample corrosion-resistant coatings;

[0049] A sample parameter calculation module, configured to obtain the wear rate and intercept of the sample corrosion-resistant coating according to the initial equivalent thickness of each of the sample corrosion-resistant coatings, the remaining equivalent thickness of each of the sample corrosion-resistant coatings, and the sample vibration intensity of each of the sample connectors.

[0050] In a possible implementation, the sample parameter measurement module is specifically configured to:

[0051] For each sample connector, determine the working conditions when the sample connector has the maximum vibration intensity as the specified working conditions of the sample connector;

[0052] For each sample connector, measure the sample vibration intensity of the sample connector under its specified working conditions and the remaining equivalent thickness of the sample corrosion-resistant coating of the sample connector.

[0053] In a possible implementation, the sample parameter calculation module is specifically configured to:

[0054] According to the initial equivalent thickness of each of the sample corrosion-resistant coatings, the remaining equivalent thickness of each of the sample corrosion-resistant coatings, and the sample vibration intensity of each of the sample connectors, according to the following formula:

[0055] LnD = μLnV + ε

[0056] Calculate the wear rate and intercept of the corrosion-resistant coating of the sample. Among them, D is the equivalent wear thickness of the corrosion-resistant coating of the sample, which is calculated based on the initial equivalent thickness and the remaining equivalent thickness of the corrosion-resistant coating of the sample. V is the vibration intensity of the sample, μ is the wear rate of the corrosion-resistant coating of the sample, and ε is the intercept of the corrosion-resistant coating of the sample.

[0057] In a possible implementation manner, the service life determination module is specifically configured to:

[0058] According to the wear rate, initial equivalent thickness, intercept of the corrosion-resistant coating to be detected, the actual vibration intensity under each specified duty cycle, and the percentage of each specified duty cycle in the total usage time, according to the following formula:

[0059]

[0060] Calculate the service life of the corrosion-resistant coating to be detected, and obtain the service life of the connector to be detected. Among them, θ is the service life of the corrosion-resistant coating to be detected, and α i is the percentage of the i-th specified duty cycle in the total usage time, is the wear rate of the corrosion-resistant coating to be detected, V i is the actual vibration intensity under the i-th specified duty cycle, is the intercept of the corrosion-resistant coating to be detected, D initial is the initial equivalent thickness of the corrosion-resistant coating to be detected.

[0061] In a third aspect, an embodiment of the present application provides an electronic device, including a processor and a memory;

[0062] The memory is used to store a computer program;

[0063] When the processor is used to execute the program stored in the memory, it implements the detection method for the service life of any connector in the present application.

[0064] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements the detection method for the service life of any connector in the present application.

[0065] Advantages of the embodiments of the present application:

[0066] The detection method, device, electronic device and storage medium for the service life of a connector provided by the embodiments of the present application obtain the wear rate corresponding to the material type of the anti-corrosion coating to be detected of the connector to be detected, the initial equivalent thickness of the anti-corrosion coating to be detected, and the intercept of the anti-corrosion coating to be detected; respectively obtain the actual vibration intensity of the connector to be detected at each specified duty cycle during the actual working process, and determine the percentage of each specified duty cycle in the total service time; according to the wear rate, initial equivalent thickness, intercept, actual vibration intensity at each specified duty cycle and the percentage of each specified duty cycle in the total service time of the anti-corrosion coating to be detected, calculate the service life of the anti-corrosion coating to be detected, and obtain the service life of the connector to be detected. The detection of the service life of the connector is realized. Compared with obtaining the service life of the connector through simulated tests at the time of factory shipment or giving a service life for a certain type of connector, in the present application, the actual vibration intensity of the connector to be detected during the actual working process and the percentage of each specified duty cycle in the total service time are obtained, so that the service life can be measured separately for each connector, and the actual working process of the connector to be detected is considered, and the detection result of the service life is more accurate. Of course, it is not necessary for any product or method implementing the present application to achieve all the above-mentioned advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0068] Figure 1 A schematic diagram of the detection method for the service life of the connector according to the embodiment of the present application;

[0069] Figure 2 A schematic diagram of a specific implementation manner of step S101 in the embodiment of the present application;

[0070] Figure 3 A schematic diagram of the method for measuring the wear rate and intercept of the sample anti-corrosion coating of the sample connector in the embodiment of the present application;

[0071] Figure 4 A schematic diagram of the detection device for the service life of the connector according to the embodiment of the present application;

[0072] Figure 5 A schematic diagram of the electronic device according to the embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0073] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0074] In order to realize the detection of the service life of the connector, in the present application, the reasons for the failure of the connector are first analyzed. Electrical contact failure is one of the main failure modes of the connector. Excessive contact resistance or the increase in contact resistance exceeding a certain threshold is the main reason for the electrical contact failure of the connector. Among them, the high-frequency vibration environmental stress is the key inducement for the electrical contact failure. Under the vibration stress, the contact part of the electrical connector generates relative movement, thereby causing wear, resulting in a gradual reduction of the corrosion-resistant coating, and finally exposing the base layer. Its contact resistance gradually increases in this irreversible process until it reaches the threshold, thereby causing the electrical contact failure of the connector.

[0075] During the use of the connector of the fan of the base station product, due to continuous mechanical stress, there is relative movement between the pin and the socket of the connector, and wear will occur at the contact point, resulting in a gradual reduction of the corrosion-resistant coating at the contact point, and finally exposing the base layer. The contact resistance gradually increases in this irreversible process until it reaches the threshold, and finally manifests as electrical connection failure. Since the whole process is irreversible, the thickness of the corrosion-resistant coating can be selected as the degradation parameter. When it is 0, it is considered that the connector can no longer be used reliably, that is, a failed connector.

[0076] Based on the above research, the embodiments of the present application provide a method for detecting the service life of a connector. Refer to Figure 1 , the method includes:

[0077] S101, obtaining the wear rate corresponding to the material type of the to-be-detected corrosion-resistant coating of the to-be-detected connector, the initial equivalent thickness of the to-be-detected corrosion-resistant coating, and the intercept of the to-be-detected corrosion-resistant coating.

[0078] The method for detecting the service life of the connector in the embodiments of the present application can be implemented by an electronic device. The to-be-detected connector is any connector that needs to be detected. In one example, the above-mentioned electronic device can be a base station device, and the to-be-detected connector is the connector of the fan in the base station device.

[0079] The corrosion-resistant coating to be detected refers to the corrosion-resistant coating of the contact points of the connector to be detected. The wear rate of the corrosion-resistant coating can be understood as the wear thickness of the corrosion-resistant coating under the unit vibration intensity per unit time. The wear rate corresponding to the material type of the corrosion-resistant coating to be detected can be obtained by pre-measuring the actual wear rate of the corrosion-resistant coating of the same material type. The initial equivalent thickness and the intercept of the corrosion-resistant coating to be detected can be measured. When the corrosion-resistant coating contains only one material, the initial equivalent thickness of the corrosion-resistant coating is the current actual thickness of the corrosion-resistant coating. When the corrosion-resistant coating includes at least two materials, it is necessary to calculate the initial equivalent thickness of the corrosion-resistant coating according to the hardness and thickness of various materials.

[0080] S102, respectively obtain the actual vibration intensities of the above-mentioned connectors to be detected at each specified duty cycle during the actual working process, and determine the percentage of each of the above-mentioned specified duty cycles in the total usage time.

[0081] The connectors to be detected do not work at the same power all the time during the actual working process, but will work at different duty cycles. For example, taking the connectors in base station equipment as an example, when the base station equipment transmits a large amount of data and generates more heat, the fan rotates fast and the duty cycle of the connector is correspondingly large; when the base station equipment transmits less data and generates less heat, the fan rotates slowly and the duty cycle of the connector is correspondingly small. The duty cycles of the connectors to be detected during the actual working process in a specified period can be obtained as the specified duty cycles of the connectors to be detected. Of course, the average value within multiple periods can also be calculated. After obtaining the specified duty cycles of the connectors to be detected, the actual vibration intensities of the connectors to be detected at each specified duty cycle during the actual working process can be obtained.

[0082] In addition, it is also necessary to obtain the percentage of each specified duty cycle in the total usage time, that is, the percentage of each specified duty cycle in the specified cycle time. For example, if it is measured that the time of the specified duty cycle A of the connector to be detected within 100 hours is 25 hours, the time of the specified duty cycle B of the connector to be detected is 30 hours, and the time of the specified duty cycle C of the connector to be detected is 45 hours, then the percentage of the specified duty cycle A in the total usage time is 25 / 100 = 0.25, the percentage of the specified duty cycle B in the total usage time is 30 / 100 = 0.3, and the percentage of the specified duty cycle C in the total usage time is 45 / 100 = 0.45.

[0083] S103, calculate the service life of the above-mentioned corrosion-resistant coating to be detected according to the wear rate, initial equivalent thickness, intercept, actual vibration intensity at each of the above-mentioned specified duty cycles, and the percentage of each of the above-mentioned specified duty cycles in the total usage time of the above-mentioned corrosion-resistant coating to be detected, and obtain the service life of the above-mentioned connector to be detected.

[0084] The wear thickness of the anti-corrosion coating to be detected per unit time at each specified duty cycle can be calculated respectively according to the wear rate, intercept of the anti-corrosion coating to be detected, and the actual vibration intensity at each specified duty cycle. Then, based on the wear thickness of the anti-corrosion coating to be detected per unit time at the specified duty cycle, the percentage of each specified duty cycle in the total usage time, and the initial equivalent thickness of the anti-corrosion coating to be detected, the service life of the connector to be detected can be calculated.

[0085] In the embodiments of the present application, the detection of the service life of the connector is realized. Compared with obtaining the service life of the connector through simulation testing at the time of factory shipment or giving a service life for a certain type of connector, in the present application, the actual vibration intensity of the connector to be detected during the actual working process and the percentage of each specified duty cycle in the total usage time are obtained, and the service life can be measured individually for each connector, and the actual working process of the connector to be detected is considered, so the detection result of the service life is more accurate.

[0086] In a possible implementation manner, referring to Figure 2 , the obtaining of the wear rate corresponding to the material type of the anti-corrosion coating to be detected of the connector to be detected, the initial equivalent thickness of the anti-corrosion coating to be detected, and the intercept of the anti-corrosion coating to be detected includes:

[0087] S1011, obtaining the material type of the anti-corrosion coating to be detected of the connector to be detected to obtain the target material type.

[0088] S1012, when the target material type includes at least two materials, determining the initial equivalent thickness of the anti-corrosion coating to be detected according to the coating thickness and hardness of each material in the anti-corrosion coating to be detected.

[0089] In an example, the Archard model of adhesive wear can be used to calculate the initial equivalent thickness of the anti-corrosion coating to be detected, and the method is as follows.

[0090]

[0091] Where Q is the wear amount, K is the adhesive wear coefficient, which is determined according to the friction type, friction temperature, and lubrication condition; L is the sliding distance; H is the Brinell hardness value of the material; W is the normal load, that is, the external normal force received during work.

[0092] It can be seen from equation (1) that the wear amount is inversely proportional to the material hardness H. When the connector and its usage environment are the same, it can be assumed that K and L are the same. According to the hardness and thickness of various materials, the initial thickness of the anti-corrosion coating to be detected can be equivalent to the thickness of a certain material.

[0093] In a possible implementation, when the above-mentioned target material type includes at least two materials, the initial equivalent thickness of the to-be-detected corrosion-resistant coating is determined according to the coating thickness and hardness of each material in the to-be-detected corrosion-resistant coating, including:

[0094] Step 1, when the above-mentioned target material type includes at least two materials, obtain the hardness and thickness of each material in the to-be-detected corrosion-resistant coating respectively, and determine a reference material among the above-mentioned materials.

[0095] The reference material for detecting the corrosion-resistant coating should be the same as the reference material of the sample corrosion-resistant coating used when pre-measuring the wear rate of the sample corrosion-resistant coating.

[0096] Step 2, for each other material except the reference material among the above-mentioned materials, calculate the relative hardness of the other material with respect to the reference material according to the hardness of the other material and the hardness of the reference material.

[0097] Step 3, for each other material except the reference material among the above-mentioned materials, calculate the relative thickness of the other material with respect to the reference material according to the thickness and relative hardness of the other material.

[0098] Step 4, determine the initial equivalent thickness of the to-be-detected corrosion-resistant coating according to the relative thicknesses and the thickness of the reference material.

[0099] Assume that the target material type includes N materials, namely Material 1 - Material N, and the hardnesses of Material 1 - Material N are H1 - H N , and the thicknesses of Material 1 - Material N are Th1 - Th N , and the reference material is Material M, where N is an integer greater than 1, M ≤ N, and M is a positive integer. Then for the i-th material, 1 ≤ i ≤ N, its relative hardness with respect to the reference material (Material M) can be expressed as Its relative thickness with respect to the reference material (Material M) can be expressed as Then the initial equivalent thickness of the to-be-detected corrosion-resistant coating can finally be expressed as:

[0100]

[0101] where Th E represents the initial equivalent thickness of the to-be-detected corrosion-resistant coating.

[0102] For example, taking a gold-nickel coating as an example, the Brinell hardness value of gold is 20, and the Brinell hardness value of nickel is 80. Then the original coating thickness and the measured remaining thickness after the test can be converted into the equivalent nickel layer thickness, and the calculation method is as follows:

[0103]

[0104] Among them, Th E is the initial equivalent thickness, Th Au is the thickness of the gold plating layer, Th Ni is the thickness of the nickel plating layer, H Au is the Brinell hardness of gold, H Ni is the Brinell hardness value of nickel.

[0105] In one example, when the target material type of the corrosion-resistant plating to be detected contains only one material, the initial equivalent thickness of the corrosion-resistant plating to be detected is the current actual thickness of the corrosion-resistant plating. For example, a grinding machine can be used to grind the connector pin to the contact point position, and the average thickness of each corrosion-resistant plating layer of the connector can be measured.

[0106] S1013, use the wear rate and intercept of the sample corrosion-resistant plating layer of the sample connector of the same model as the above-mentioned connector to be detected as the wear rate and intercept of the above-mentioned corrosion-resistant plating layer to be detected.

[0107] The method for measuring the wear rate and intercept of the sample corrosion-resistant plating layer of the sample connector will be described below. In one possible implementation, see Figure 3 , the above method further includes:

[0108] S301, obtain the initial equivalent thickness of the sample corrosion-resistant plating layer of multiple sample connectors of the same model as the above-mentioned connector to be detected.

[0109] The material type of the sample corrosion-resistant plating layer of the sample connector is the same as that of the corrosion-resistant plating layer to be detected of the connector to be detected. The method for obtaining the initial equivalent thickness of each sample corrosion-resistant plating layer can refer to the method for obtaining the above-mentioned corrosion-resistant plating layer to be detected, which will not be elaborated here.

[0110] S302, measure the sample vibration intensity of each of the above sample connectors under specified working conditions and the remaining equivalent thickness of each of the above sample corrosion-resistant plating layers.

[0111] The specified working conditions can be custom-set according to the actual situation. In one example, in order to speed up the test, a fan with poor dynamic balance can be selected, and an acceleration sensor can be used to determine the rotation speed at which these fans vibrate most strongly at different rotation speeds. And measure the sample vibration intensity and the remaining equivalent thickness of the sample corrosion-resistant plating layer at the rotation speed when the vibration is most intense. In one possible implementation, the above measurement of the sample vibration intensity of each of the above sample connectors under specified working conditions and the remaining equivalent thickness of each of the above sample corrosion-resistant plating layers includes:

[0112] Step 1, for each sample connector, determine the working conditions when the vibration intensity of the sample connector is the largest as the specified working conditions of the sample connector.

[0113] For example, when the duty cycle of the sample connector is 70%, the vibration intensity is the largest. Then, this duty cycle of 70% is used as the specified working condition of the sample connector.

[0114] Step 2: For each sample connector, measure the sample vibration intensity of the sample connector under its specified working condition and the remaining equivalent thickness of the sample corrosion-resistant coating of the sample connector.

[0115] The vibration intensity can be expressed by the equivalent velocity stress. In one example, according to the Von Mises equivalent stress criterion:

[0116]

[0117] where σ eq is the equivalent stress, σ xx is the first principal stress, σ yy is the second principal stress, σ zz is the third principal stress; σ xy is the deviatoric stress component of the first principal stress and the second principal stress, σ zx is the deviatoric stress component of the first principal stress and the third principal stress, σ yz is the deviatoric stress component of the second principal stress and the third principal stress.

[0118] Assuming that the equivalent stress is independent in the directions of the three axes, the above formula (3) can be simplified to:

[0119]

[0120] where V eq is the equivalent velocity stress, V x is the first principal stress, V y is the second principal stress, V z is the third principal stress.

[0121] In the embodiments of the present application, selecting the working condition when the vibration intensity is the largest as the specified working condition of the sample connector can shorten the measurement time of the sample connector data and save time costs.

[0122] S303: According to the initial equivalent thickness of each of the above sample corrosion-resistant coatings, the remaining equivalent thickness of each of the above sample corrosion-resistant coatings, and each of the above sample vibration intensities, obtain the wear rate and intercept of the above sample corrosion-resistant coatings.

[0123] After obtaining the remaining equivalent thickness of each sample corrosion-resistant coating under its respective sample vibration intensity, a wear model can be established and parameter estimation can be performed. Based on the simplified calculation method of abrasive wear, there is:

[0124] γ = PF a Vb (5)

[0125] Among them, γ is the wear rate; P is the abrasive wear coefficient; F is the load, that is, the external stress between the friction pairs; V is the sample vibration intensity; a and b are constant parameters to be estimated.

[0126] Under the condition that the connector models are the same, the insertion and extraction forces are consistent, and the materials are the same, for the case of consistent interfaces, a linear model between the wear material thickness and the vibration intensity (speed) can be established:

[0127] LnD = μLnV + ε (6)

[0128] Among them, D is the wear equivalent thickness of the sample corrosion-resistant coating, which is calculated based on the initial equivalent thickness and the remaining equivalent thickness of the sample corrosion-resistant coating; V is the sample vibration intensity; μ is the wear rate of the sample corrosion-resistant coating; ε is the intercept of the sample corrosion-resistant coating.

[0129] According to Equation (6), after taking the natural logarithm, the estimated values of the model parameters can be obtained by applying linear regression.

[0130] In a possible implementation manner, obtaining the wear rate and intercept of the above-mentioned sample corrosion-resistant coating according to the initial equivalent thickness of each of the above-mentioned sample corrosion-resistant coatings, the remaining equivalent thickness of each of the above-mentioned sample corrosion-resistant coatings, and the vibration intensity of each of the above-mentioned samples includes:

[0131] According to the initial equivalent thickness of each of the above-mentioned sample corrosion-resistant coatings, the remaining equivalent thickness of each of the above-mentioned sample corrosion-resistant coatings, and the vibration intensity of each of the above-mentioned samples, according to the following formula:

[0132] LnD = μLnV + ε

[0133] Calculate the wear rate and intercept of the above-mentioned sample corrosion-resistant coating, where D is the wear equivalent thickness of the sample corrosion-resistant coating, which is calculated based on the initial equivalent thickness and the remaining equivalent thickness of the sample corrosion-resistant coating; V is the sample vibration intensity; μ is the wear rate of the sample corrosion-resistant coating; ε is the intercept of the sample corrosion-resistant coating.

[0134] In a possible implementation manner, calculating the service life of the above-mentioned to-be-detected corrosion-resistant coating according to the wear rate, initial equivalent thickness, intercept, actual vibration intensity under each of the above-mentioned specified duty cycles, and the percentage of each of the above-mentioned specified duty cycles in the total usage time, and obtaining the service life of the above-mentioned to-be-detected connector includes:

[0135] According to the wear rate, initial equivalent thickness, intercept, actual vibration intensity under each of the above-mentioned specified duty cycles, and the percentage of each of the above-mentioned specified duty cycles in the total usage time, according to the following formula:

[0136]

[0137] Calculate the service life of the anti-corrosion coating to be detected above to obtain the service life of the connector to be detected above. Among them, θ is the service life of the anti-corrosion coating to be detected above, and α i is the percentage of the i-th specified duty cycle in the total usage time, is the wear rate of the anti-corrosion coating to be detected above, V i is the actual vibration intensity at the i-th specified duty cycle, is the intercept of the anti-corrosion coating to be detected above, D initial is the initial equivalent thickness of the anti-corrosion coating to be detected above.

[0138] To more clearly illustrate the detection method for the service life of the connector of the present application, the following uses a case for example.

[0139] Test the vibration conditions at the connector position of a target high-speed fan under different duty cycle conditions and record them. During the operation of the whole machine of the target high-speed fan, when the duty cycle of the connector is 20%, the vibration intensity is 0.13 mm / s; when the duty cycle is 70%, the vibration intensity is 0.34 mm / s; the data for the remaining duty cycles will not be elaborated. Measure the initial coating thickness at each position of the connector of the high-speed fan, and measure the average coating thickness after grinding the electrical connector with a grinding machine. This coating is composed of gold and nickel, calculate its initial equivalent thickness, take the gold thickness of 0.6 μm and the nickel thickness of 1.85 μm. According to Equation (2), the equivalent thickness of 2 μm nickel can be obtained.

[0140] Select a high-speed fan with unbalanced dynamic balance of the same model for an acceleration test. After measurement, the vibration of the high-speed fan with unbalanced dynamic balance is the most intense at a duty cycle of 75%, which is 2.76 mm / s. The vibration is 1.86 mm / s at a duty cycle of 50%. Select several samples for an accelerated life test for 30 days and measure the wear thickness at different duty cycles.

[0141] Perform regression fitting on Equation (6) LnD = μLnV + ε. That is, let y = LnD and x = LnV, and (6) can be transformed into a general linear equation: Among them, and are parameters to be estimated.

[0142] Introduce notations:

[0143]

[0144] From the least squares estimation, we can obtain:

[0145]

[0146] In addition, take σ2 = Var(y i ):

[0147]

[0148] By performing regression analysis on the original data of the accelerated test, according to (8) - (10), the wear rate and intercept of the sample corrosion-resistant coating can be obtained, which are also the wear rate and intercept of the corrosion-resistant coating to be detected: According to the following formula:

[0149]

[0150] It can be obtained that the connector to be detected of the high-speed fan to be detected operates at a duty cycle of 20% when it is at 50%, and operates at a duty cycle of 70% when it is at 50%. According to the evaluation, it can be concluded that the connector to be detected of the high-speed fan to be detected can operate for at least 5.9 years with a 90% confidence level in this scenario.

[0151] Among them, L xx 、L yy 、L xy represent the notations used in the calculation, n represents the number of sample connectors, x i represents the x value of the i-th sample connector, represents the mean value of the x values of n sample connectors, y i represents the y value of the i-th sample connector, represents the mean value of the y values of n sample connectors, σ 2 represents the variance of the y value of the i-th sample connector, represents and covariance, Var() represents the variance of the elements in the brackets, α i is the percentage of the i-th specified duty cycle of the connector to be detected in the total usage time, is the wear rate of the corrosion-resistant coating to be detected, V i is the actual vibration intensity of the connector to be detected at the i-th specified duty cycle, is the intercept of the corrosion-resistant coating to be detected.

[0152] A detection device for the service life of a connector, see Figure 4 , this device includes:

[0153] A parameter acquisition module 11 to be detected, used to acquire the wear rate corresponding to the material type of the corrosion-resistant coating to be detected of the connector to be detected, the initial equivalent thickness of the above-mentioned corrosion-resistant coating to be detected, and the intercept of the above-mentioned corrosion-resistant coating to be detected;

[0154] The actual vibration intensity acquisition module 12 is configured to respectively acquire the actual vibration intensities of the to-be-detected connector during actual operation at each specified duty cycle, and determine the percentage of each of the specified duty cycles in the total usage time;

[0155] The service life determination module 13 is configured to calculate the service life of the to-be-detected corrosion-resistant coating according to the wear rate, initial equivalent thickness, intercept, actual vibration intensity at each of the specified duty cycles, and the percentage of each of the specified duty cycles in the total usage time of the to-be-detected corrosion-resistant coating, so as to obtain the service life of the to-be-detected connector.

[0156] In a possible implementation manner, the to-be-detected parameter acquisition module includes:

[0157] The target material type acquisition sub-module is configured to acquire the material type of the to-be-detected corrosion-resistant coating of the to-be-detected connector to obtain the target material type;

[0158] The initial equivalent thickness determination sub-module is configured to determine the initial equivalent thickness of the to-be-detected corrosion-resistant coating according to the coating thickness and hardness of each material in the to-be-detected corrosion-resistant coating when the target material type includes at least two materials;

[0159] The wear rate determination sub-module is configured to use the wear rate and intercept of the sample corrosion-resistant coating of the sample connector of the same model as the to-be-detected connector measured in advance as the wear rate and intercept of the to-be-detected corrosion-resistant coating.

[0160] In a possible implementation manner, the initial equivalent thickness determination sub-module is specifically configured to:

[0161] When the target material type includes at least two materials, respectively acquire the hardness and thickness of each material in the to-be-detected corrosion-resistant coating, and determine a reference material among the materials;

[0162] For each other material except the reference material among the materials, calculate the relative hardness of the other material with respect to the reference material according to the hardness of the other material and the hardness of the reference material;

[0163] For each other material except the reference material among the materials, calculate the relative thickness of the other material with respect to the reference material according to the thickness of the other material and the relative hardness;

[0164] Determine the initial equivalent thickness of the to-be-detected corrosion-resistant coating according to the relative thicknesses and the thickness of the reference material.

[0165] In a possible implementation manner, the above device further includes:

[0166] A sample parameter acquisition module, configured to acquire the initial equivalent thickness of the corrosion-resistant coatings of a plurality of sample connectors of the same model as the to-be-detected connector above.

[0167] A sample parameter measurement module, configured to measure the sample vibration intensity of each of the above sample connectors under specified working conditions and the remaining equivalent thickness of each of the above sample corrosion-resistant coatings.

[0168] A sample parameter calculation module, configured to obtain the wear rate and intercept of the above sample corrosion-resistant coatings based on the initial equivalent thickness of each of the above sample corrosion-resistant coatings, the remaining equivalent thickness of each of the above sample corrosion-resistant coatings, and the sample vibration intensity of each of the above.

[0169] In a possible implementation manner, the above sample parameter measurement module is specifically configured to:

[0170] For each sample connector, determine the working conditions when the sample vibration intensity of this sample connector is the maximum as the specified working conditions of this sample connector.

[0171] For each sample connector, measure the sample vibration intensity of this sample connector under its specified working conditions and the remaining equivalent thickness of the sample corrosion-resistant coating of this sample connector.

[0172] In a possible implementation manner, the above sample parameter calculation module is specifically configured to:

[0173] Based on the initial equivalent thickness of each of the above sample corrosion-resistant coatings, the remaining equivalent thickness of each of the above sample corrosion-resistant coatings, and the sample vibration intensity of each of the above, according to the following formula:

[0174] LnD = μLnV + ε

[0175] Calculate the wear rate and intercept of the above sample corrosion-resistant coatings, where D is the wear equivalent thickness of the sample corrosion-resistant coating, calculated based on the initial equivalent thickness and the remaining equivalent thickness of the sample corrosion-resistant coating, V is the sample vibration intensity, μ is the wear rate of the sample corrosion-resistant coating, and ε is the intercept of the sample corrosion-resistant coating.

[0176] In a possible implementation manner, the above service life determination module is specifically configured to:

[0177] Based on the wear rate, initial equivalent thickness, intercept of the to-be-detected corrosion-resistant coating above, the actual vibration intensity under each of the above specified duty cycles, and the percentage of each of the above specified duty cycles in the total usage time, according to the following formula:

[0178]

[0179] Calculate the service life of the anti-corrosion coating to be detected above to obtain the service life of the connector to be detected above, where θ is the service life of the anti-corrosion coating to be detected above, and α i is the percentage of the i-th specified duty cycle in the total usage time, is the wear rate of the anti-corrosion coating to be detected above, V i is the actual vibration intensity under the i-th specified duty cycle, is the intercept of the anti-corrosion coating to be detected above, D initia; is the initial equivalent thickness of the anti-corrosion coating to be detected above.

[0180] The embodiment of the present application also provides an electronic device, including: a processor and a memory;

[0181] The above-mentioned memory is used to store a computer program;

[0182] When the above-mentioned processor is used to execute the computer program stored in the above-mentioned memory, it realizes the detection method of the service life of any of the above connectors.

[0183] Optionally, referring to Figure 5 , in addition to the processor 21 and the memory 23, the electronic device of the embodiment of the present application further includes a communication interface 22 and a communication bus 24, where the processor 21, the communication interface 22, and the memory 23 complete mutual communication through the communication bus 24. In one example, the electronic device may specifically be a base station device.

[0184] The communication bus mentioned in the above electronic device may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. This communication bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of simplicity, only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus.

[0185] The communication interface is used for communication between the above electronic device and other devices.

[0186] The memory may include a RAM (Random Access Memory), or may also include an NVM (Non-Volatile Memory), such as at least one disk memory. Optionally, the memory may also be at least one storage device located far from the aforementioned processor.

[0187] The above-mentioned processor may be a general-purpose processor, including a CPU (Central Processing Unit), an NP (Network Processor), etc.; it may also be a DSP (Digital Signal Processing), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0188] An embodiment of the present application further provides a computer-readable storage medium. A computer program is stored in the computer-readable storage medium. When the computer program is executed by a processor, the detection method for the service life of any of the above connectors is implemented.

[0189] In another embodiment provided by the present application, a computer program product containing instructions is further provided. When it runs on a computer, the computer is caused to execute the detection method for the service life of any of the above connectors.

[0190] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or data center that includes one or more integrated available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid-state drive SolidState Disk (SSD)), etc.

[0191] It should be noted that in this document, the technical features in each alternative can be combined as long as they are not contradictory to form a solution, and these solutions are all within the scope disclosed in this application. Relative terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0192] Each embodiment in this specification is described in a related manner. For the same and similar parts among the embodiments, reference can be made to each other, and the differences between each embodiment and other embodiments are emphasized. In particular, for the embodiments of the device, electronic device, computer program product and storage medium, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0193] The above are only the preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application are all included in the scope of protection of this application.

Claims

1. A method for detecting the service life of a connector, characterized in that, The method includes: Obtaining the wear rate corresponding to the material type of the anti-corrosion coating to be detected of the connector to be detected, the initial equivalent thickness of the anti-corrosion coating to be detected, and the intercept of the anti-corrosion coating to be detected; Respectively obtaining the actual vibration intensity of the connector to be detected at each specified duty cycle during the actual working process, and determining the percentage of each specified duty cycle in the total usage time; According to the wear rate, initial equivalent thickness, intercept of the anti-corrosion coating to be detected, the actual vibration intensity at each specified duty cycle, and the percentage of each specified duty cycle in the total usage time, according to the following formula: Calculate the service life of the to-be-detected corrosion-resistant coating to obtain the service life of the to-be-detected connector, where θ is the service life of the to-be-detected corrosion-resistant coating, and α i is the percentage of the i-th specified duty cycle in the total usage time, is the wear rate of the to-be-detected corrosion-resistant coating, V i is the actual vibration intensity at the i-th specified duty cycle, is the intercept of the to-be-detected corrosion-resistant coating, D initial is the initial equivalent thickness of the to-be-detected corrosion-resistant coating.

2. The method according to claim 1, wherein The obtaining of the wear rate corresponding to the material type of the anti-corrosion coating to be detected of the connector to be detected, the initial equivalent thickness of the anti-corrosion coating to be detected, and the intercept of the anti-corrosion coating to be detected includes: Obtaining the material type of the anti-corrosion coating to be detected of the connector to be detected to obtain the target material type; In the case where the target material type includes at least two materials, determining the initial equivalent thickness of the anti-corrosion coating to be detected according to the coating thickness and hardness of each material in the anti-corrosion coating to be detected; Taking the wear rate and intercept of the sample anti-corrosion coating of the sample connector of the same model as the connector to be detected measured in advance as the wear rate and intercept of the anti-corrosion coating to be detected.

3. The method according to claim 2, wherein The determining of the initial equivalent thickness of the anti-corrosion coating to be detected according to the coating thickness and hardness of each material in the anti-corrosion coating to be detected in the case where the target material type includes at least two materials includes: In the case where the target material type includes at least two materials, respectively obtaining the hardness and thickness of each material in the anti-corrosion coating to be detected, and determining a reference material among the materials; For each other material except the reference material among the materials, calculating the relative hardness of the other material with respect to the reference material according to the hardness of the other material and the hardness of the reference material; For each other material except the reference material among the materials, calculating the relative thickness of the other material with respect to the reference material according to the thickness of the other material and the relative hardness; Determining the initial equivalent thickness of the anti-corrosion coating to be detected according to the relative thicknesses and the thickness of the reference material.

4. The method according to any one of claims 1 to 3, characterized in that The method further includes: Obtaining the initial equivalent thickness of the sample anti-corrosion coating of multiple sample connectors of the same model as the connector to be detected; Measuring the sample vibration intensity of each sample connector under specified working conditions and the remaining equivalent thickness of each sample anti-corrosion coating; Obtaining the wear rate and intercept of the sample anti-corrosion coating according to the initial equivalent thickness of each sample anti-corrosion coating, the remaining equivalent thickness of each sample anti-corrosion coating, and the sample vibration intensity of each sample.

5. The method according to claim 4, wherein The measuring of the sample vibration intensity of each sample connector under specified working conditions and the remaining equivalent thickness of each sample anti-corrosion coating includes: For each sample connector, determining the working condition when the vibration intensity of the sample connector is the maximum as the specified working condition of the sample connector; For each sample connector, measure the sample vibration intensity of the sample connector under its specified working conditions and the remaining equivalent thickness of the sample corrosion-resistant coating of the sample connector.

6. The method according to claim 4, wherein The obtaining of the wear rate and intercept of the sample corrosion-resistant coating according to the initial equivalent thickness, the remaining equivalent thickness of each sample corrosion-resistant coating, and the sample vibration intensity of each sample includes: According to the initial equivalent thickness, the remaining equivalent thickness of each sample corrosion-resistant coating, and the sample vibration intensity of each sample, according to the following formula: lnD = μlnV + ε Calculate the wear rate and intercept of the sample corrosion-resistant coating, where D is the equivalent wear thickness of the sample corrosion-resistant coating, calculated based on the initial equivalent thickness and the remaining equivalent thickness of the sample corrosion-resistant coating, V is the sample vibration intensity, μ is the wear rate of the sample corrosion-resistant coating, and ε is the intercept of the sample corrosion-resistant coating.

7. A detection device for the service life of a connector, characterized in that, The device includes: A module for obtaining parameters to be detected, configured to obtain the wear rate corresponding to the material type of the corrosion-resistant coating to be detected of the connector to be detected, the initial equivalent thickness of the corrosion-resistant coating to be detected, and the intercept of the corrosion-resistant coating to be detected; A module for obtaining the actual vibration intensity, configured to respectively obtain the actual vibration intensity of the connector to be detected at each specified duty cycle during the actual working process, and determine the percentage of each specified duty cycle in the total usage time; A module for determining the service life, configured to calculate according to the wear rate, the initial equivalent thickness, the intercept of the corrosion-resistant coating to be detected, the actual vibration intensity at each specified duty cycle, and the percentage of each specified duty cycle in the total usage time, according to the following formula: Calculate the service life of the to-be-detected corrosion-resistant coating to obtain the service life of the to-be-detected connector, where θ is the service life of the to-be-detected corrosion-resistant coating, and α i is the percentage of the i-th specified duty cycle in the total usage time, is the wear rate of the to-be-detected corrosion-resistant coating, V i is the actual vibration intensity under the i-th specified duty cycle, is the intercept of the to-be-detected corrosion-resistant coating, D initial is the initial equivalent thickness of the to-be-detected corrosion-resistant coating.

8. An electronic device, characterized in that, Including a processor and a memory; The memory is used to store a computer program; When the processor executes the program stored in the memory, it implements the method for detecting the service life of the connector according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, it implements the method for detecting the service life of the connector according to any one of claims 1-6.

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