Support device of electrostatic discharge simulator and application
By designing the support device of the electrostatic discharge simulator, including the base, support column, ground wire fixing fixture and electrostatic gun fixing fixture, the installation and fixing problems of the electrostatic discharge simulator during calibration and the impact of the ground wire is solved, and more accurate and stable electrostatic discharge calibration is achieved.
Patent Information
- Application Number
- CN202411918884.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-04-18
Smart Images
Figure CN119846270A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electrostatic discharge testing, and in particular to a supporting device and application of an electrostatic discharge simulator. Background Art
[0002] Electrostatic discharge simulators are widely used in electromagnetic compatibility (EMC) testing of electronic equipment, especially in verifying the immunity of equipment to electrostatic discharge interference. There are many electrostatic discharge (ESD) simulator manufacturers on the market, including Swiss EM TEST, Swiss EMC Partner, Swiss Special Test, Japan noiseken, Suzhou Test, Hangzhou Yuanfang, Shanghai Lingshi Electromagnetic and Shanghai Prima. These manufacturers provide a variety of models of electrostatic discharge simulators to meet different application requirements.
[0003] However, because different manufacturers use different structures and technical specifications when designing and manufacturing ESD simulators, their devices differ in form, interface, and electrical characteristics. This may cause the use environment and calibration conditions of the ESD simulator to be different, thus affecting the accuracy and consistency of the test. Especially in terms of the support structure of the ESD simulator, many devices require specific installation methods or supports, such as customized metal brackets or low-loss non-metallic supports. Because of the differences in size, weight, grounding requirements, etc. of equipment designed by different manufacturers, conventional tripods or non-metallic low-loss supports are not suitable for all types of ESD simulators.
[0004] Therefore, when performing electrostatic discharge testing, how to design a universal calibration support device for an electrostatic discharge simulator is a problem that needs to be solved. Summary of the invention
[0005] The embodiments of the present application provide a support device and application of an electrostatic discharge simulator to solve the problem of installation and fixation of the electrostatic discharge simulator during calibration, and the problem of not considering the effect of the ground wire on the duration of electrostatic discharge during calibration of the electrostatic discharge simulator.
[0006] In order to achieve the above objectives, this application adopts the following technical solutions:
[0007] In a first aspect, the present application provides a support device for an electrostatic discharge simulator, which is used for installing and fixing the electrostatic discharge simulator during calibration. The device includes: a base, a support column, a ground wire fixing fixture and an electrostatic gun fixing fixture, wherein:
[0008] The support column is installed at the center of the base;
[0009] One end of the grounding wire fixing fixture is installed on the support column, and the other end of the grounding wire fixing fixture is provided with a grounding wire fixing terminal, wherein the grounding wire fixing terminal is used to place the grounding wire on it;
[0010] One end of the electrostatic gun fixing fixture is installed on the supporting column, and the other end of the electrostatic gun fixing fixture is provided with an electrostatic gun fixing hole, wherein the electrostatic gun fixing hole is used to place the handheld part of the electrostatic discharge simulator;
[0011] The ground wire fixing fixture and the electrostatic gun fixing fixture are on both sides of the support column, parallel to each other and on the same plane.
[0012] In a possible design scheme, the device of the first aspect also includes that the positions of the grounding wire fixing fixture and the electrostatic gun fixing fixture on the support column can be adjusted up and down.
[0013] In a possible design scheme, the device of the first aspect further includes that scale lines are provided on the support column for determining the upper and lower positions of the grounding wire fixing fixture and the electrostatic gun fixing fixture.
[0014] A possible design scheme is that the device of the first aspect also includes that four universal wheels are arranged under the base for adjusting the position of the supporting device.
[0015] A possible design scheme, the device of the first aspect also includes that the support column is installed at the center position of the base, including: a threaded hole corresponding to the lower part of the support column is provided at the center position of the upper part of the base, and the support column is installed at the center position of the base through the threaded column.
[0016] In a possible design scheme, the device of the first aspect also includes that the base, the support column, the ground wire fixing fixture and the electrostatic gun fixing fixture are made of non-metallic materials.
[0017] In a possible design scheme, the device of the first aspect further includes that the size of the fixing hole of the electrostatic gun is adjustable.
[0018] In a possible design scheme, the device of the first aspect also includes that there are multiple ground wire fixing terminals.
[0019] In a second aspect, the present application provides an application of a support device for an electrostatic discharge simulator, which is used for installing and fixing the electrostatic discharge simulator during calibration. The application steps include:
[0020] Adjust the upper and lower positions of the static gun fixture on the support column so that the static gun fixture and the static target on the Faraday cage are at the same horizontal position;
[0021] Place the handheld part of the electrostatic discharge simulator in the electrostatic gun fixing hole of the electrostatic gun fixing fixture, and align the discharge head of the electrostatic discharge simulator with the center of the electrostatic target;
[0022] Extend the grounding wire downward through the fixing hole of the electrostatic gun, place the middle part of the grounding wire on the grounding wire fixing terminal of the grounding wire fixing fixture, and connect the end of the grounding wire to the grounding point of the Faraday cage;
[0023] Adjust the upper and lower positions of the grounding wire fixing fixture on the support column so that the placement of the grounding wire meets the preset placement requirements.
[0024] A possible design scheme, the application of the first aspect also includes that the preset placement requirement is that the grounding wire forms an isosceles triangle.
[0025] In the embodiment of the present application, the support device of the electrostatic discharge simulator includes a base, a support column, a grounding wire fixing fixture and an electrostatic gun fixing fixture, the grounding wire fixing fixture is provided with a grounding wire fixing terminal, and the electrostatic gun fixing fixture is provided with an electrostatic gun fixing hole; the electrostatic discharge simulator is installed and fixed during calibration through the electrostatic gun fixing hole, and combined with the grounding wire fixing terminal, the placement of the grounding wire meets the preset placement requirements, which solves the installation and fixation problems of the electrostatic discharge simulator during calibration, and solves the problem of unstable fixtures during calibration of the electrostatic discharge simulator, and the effect of the grounding wire on the duration of electrostatic discharge is not considered. The positions of the grounding wire fixing fixture and the electrostatic gun fixing fixture can also be adjusted up and down, so that the placement of the grounding wire meets the preset placement requirements, so as to achieve more accurate and stable calibration of the discharge current pulse waveform of the electrostatic discharge simulator.
[0026] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.
[0028] Figure 1 A front view of a support device for an electrostatic discharge simulator provided in an embodiment of the present application;
[0029] Figure 2 A top view of a support device for an electrostatic discharge simulator provided in an embodiment of the present application;
[0030] Figure 3 A schematic diagram of an application of a support device for an electrostatic discharge simulator provided in an embodiment of the present application;
[0031] Explanation of the reference numerals in the accompanying drawings: 1. base, 2. support column, 3. grounding wire fixing fixture, 4. electrostatic gun fixing fixture, 5. grounding wire fixing terminal, 6. electrostatic gun fixing hole, 7. universal wheel, 8. electrostatic discharge simulator, 9. grounding wire, 10. Faraday cage, 11. electrostatic target, 12. grounding column. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solutions and advantages of the embodiments of this specification more clear, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are part of the embodiments of this specification, not all of the embodiments. The components of the embodiments of this specification described and shown in the drawings here can be arranged and designed in various different configurations.
[0033] Therefore, the following detailed description of the embodiments of the present specification provided in the accompanying drawings is not intended to limit the scope of the present specification to be protected, but merely represents selected embodiments of the present specification. Based on the embodiments in the present specification, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present specification.
[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0035] In the description of the embodiments of this specification, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this specification. In addition, if the terms "first", "second", "third", etc. appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0036] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0037] In the description of the embodiments of this specification, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this specification can be understood according to specific circumstances.
[0038] The following is a detailed introduction to a support device of an electrostatic discharge simulator of the present application, which is used for the installation and fixation of the electrostatic discharge simulator during calibration, and is applicable to the electrostatic discharge simulator described in GJB151B-2013 and GB / T17626.2. Among them, the electrostatic discharge simulator is a test device that can simulate electrostatic discharge and can evaluate the anti-static ability of equipment and subsystems.
[0039] Figure 1 A front view of a support device for an electrostatic discharge simulator provided in an embodiment of the present application, Figure 1 This is a top view of the support device of the electrostatic discharge simulator provided in the embodiment of the present application. The structure of this device can refer to Figure 1 and Figure 2 understand.
[0040] like Figure 1 As shown, the supporting device of the electrostatic discharge simulator includes: a base 1, a supporting column 2, a grounding wire fixing fixture 3 and an electrostatic gun fixing fixture 4.
[0041] The support column 2 is installed at the center of the base 1 .
[0042] One end of the grounding wire fixing fixture 3 is mounted on the supporting column 2 , and the other end of the grounding wire fixing fixture 3 is provided with a grounding wire fixing terminal 5 , wherein the grounding wire fixing terminal 5 is used to place the grounding wire thereon.
[0043] One end of the electrostatic gun fixing fixture 4 is mounted on the supporting column 2 , and the other end of the electrostatic gun fixing fixture 4 is provided with an electrostatic gun fixing hole 6 , wherein the electrostatic gun fixing hole 6 is used to place the handheld part of the electrostatic discharge simulator.
[0044] The ground wire fixing fixture 3 and the electrostatic gun fixing fixture 4 are on both sides of the support column 2, parallel to each other and on the same plane.
[0045] The support column 2 is installed at the center of the base 1, which can be done in the following way: a threaded hole corresponding to the lower part of the support column 2 is provided at the center of the upper part of the base 1, and the support column 2 is installed at the center of the base 1 through the threaded column. Alternatively, it can be installed at the center of the base 1 by means of strong glue, etc., which is not limited here.
[0046] Optionally, the positions of the grounding wire fixing clamp 3 and the electrostatic gun fixing clamp 4 on the support column 2 can be adjusted up and down. By adjusting the positions of the grounding wire fixing clamp 3 and the electrostatic gun fixing clamp 4 up and down, the placement of the grounding wire can be made to meet preset placement requirements in subsequent applications, such as the grounding wire forming an isosceles triangle.
[0047] Optionally, scale lines are provided on the support column 2 to determine the upper and lower positions of the grounding wire fixing fixture 3 and the electrostatic gun fixing fixture 4, and also to facilitate determining the upper and lower positions of the electrostatic discharge simulator, so that the position of the electrostatic discharge simulator and the position of the electrostatic target on the Faraday cage are level in subsequent applications.
[0048] Optionally, four universal wheels 7 are provided below the base 1 for adjusting the position of the support device. In the present application, by adjusting the position of the support device through the universal wheels 7, it is easier to align the discharge head of the electrostatic discharge simulator with the electrostatic target on the Faraday cage, and after the discharge head is aligned and contacted with the center of the electrostatic target, the universal wheels 7 of the support device are locked to fix the electrostatic discharge simulator.
[0049] Optionally, the base 1, the support column 2, the ground wire fixture 3 and the electrostatic gun fixture 4 are made of non-metallic materials. The base 1, the support column 2, the ground wire fixture 3 and the electrostatic gun fixture 4 are made of non-metallic materials mainly to reduce electromagnetic interference (EMI) and ensure electrical insulation. Non-metallic materials have lower electrical conductivity, which helps to reduce unnecessary current leakage, reduce the impact on electrostatic pulse waveform calibration, and ensure the safety and stability of the test equipment.
[0050] In addition, non-metallic materials usually have better corrosion resistance and lighter weight, can maintain long-term reliability in different environments, can effectively avoid affecting the test results and provide better physical support.
[0051] Optionally, the size of the electrostatic gun fixing hole 6 is adjustable. For different models of electrostatic simulators, the size of the handheld part of the electrostatic simulator may be inconsistent. In order to make the placement of the electrostatic simulator more stable, the electrostatic gun fixing hole 6 can be manually adjusted according to the size of the handheld part of the electrostatic simulator.
[0052] Optionally, there are multiple grounding wire fixing terminals 5. In subsequent applications, when the placement of the grounding wire meets the preset placement requirements, the grounding wire can be placed on or wrapped around different grounding wire fixing terminals 5 as needed. The specific selection is based on actual needs and is not limited.
[0053] In summary, in the embodiment of the present application, the support device of the electrostatic discharge simulator includes a base, a support column, a grounding wire fixing clamp and an electrostatic gun fixing clamp, the grounding wire fixing clamp is provided with a grounding wire fixing terminal, and the electrostatic gun fixing clamp 4 is provided with an electrostatic gun fixing hole; the electrostatic discharge simulator is installed and fixed during calibration through the electrostatic gun fixing hole, and combined with the grounding wire fixing terminal, the placement of the grounding wire meets the preset placement requirements, which solves the installation and fixation problem of the electrostatic discharge simulator during calibration, and solves the problem of not considering the effect of the grounding wire on the duration of electrostatic discharge during calibration of the electrostatic discharge simulator. The positions of the grounding wire fixing clamp and the electrostatic gun fixing clamp can also be adjusted up and down, so that the placement of the grounding wire meets the preset placement requirements, so as to achieve more accurate and stable calibration of the discharge current pulse waveform of the electrostatic discharge simulator.
[0054] Combination of the above Figure 1-Figure 2 The support device of the electrostatic discharge simulator provided in the embodiment of the present application is described in detail. Figure 3 Introduce the specific application scenarios of the supporting device of the electrostatic discharge simulator.
[0055] Step 1: adjust the upper and lower positions of the electrostatic gun fixing fixture 4 on the support column 2 so that the electrostatic gun fixing fixture 4 and the electrostatic target 11 on the Faraday cage 10 are at the same horizontal position.
[0056] Step 2: Place the handheld portion of the electrostatic discharge simulator 8 in the electrostatic gun fixing hole 6 of the electrostatic gun fixing fixture 4 , and align the discharge head of the electrostatic discharge simulator 8 with the center of the electrostatic target 11 .
[0057] After the alignment and contact, the universal wheel 7 of the electrostatic discharge simulator 8 can also be fixed.
[0058] Step three, extend the grounding wire 9 downward through the electrostatic gun fixing hole 6, place the middle part of the grounding wire 9 on the grounding wire 9 fixing terminal of the grounding wire fixing fixture 3, and connect the end of the grounding wire 9 to the grounding point of the Faraday cage 10.
[0059] It should be noted that, in general, the length of the grounding wire is 2 meters, and the middle of the grounding wire is at the 1-meter position of the grounding wire. There may be grounding wires of other lengths, and the methods are the same as above, so I will not go into details.
[0060] Step 4: adjust the upper and lower positions of the grounding wire fixing fixture 3 on the support column 2 so that the placement of the grounding wire 9 meets the preset placement requirements.
[0061] It can be understood that the placement of the ground wire meets the preset placement requirements, which solves the problem of inaccurate measurement of the 30ns and 60ns current amplitudes of electrostatic discharge caused by improper placement of the ground wire when calibrating the electrostatic discharge simulator. Among them, the preset placement requirements can be that the ground wire forms an isosceles triangle,
[0062] The above application of the supporting device of the electrostatic discharge simulator can calibrate the electrostatic discharge current pulse waveform, effectively improve the accuracy, stability and operability of the electrostatic discharge calibration system, and can better realize the calibration of the electrostatic discharge current waveform.
[0063] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present application as described above, which are not provided in detail for the sake of simplicity.
[0064] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A support device for an electrostatic discharge simulator, used for installing and fixing the electrostatic discharge simulator during calibration, characterized in that: The device comprises: a base, a support column, a grounding wire fixing fixture and an electrostatic gun fixing fixture, wherein: The support column is installed at the center of the base; One end of the grounding wire fixing fixture is installed on the supporting column, and the other end of the grounding wire fixing fixture is provided with a grounding wire fixing terminal, wherein the grounding wire fixing terminal is used to place the grounding wire on it; One end of the electrostatic gun fixing fixture is mounted on the supporting column, and the other end of the electrostatic gun fixing fixture is provided with an electrostatic gun fixing hole, wherein the electrostatic gun fixing hole is used to place the handheld part of the electrostatic discharge simulator; The ground wire fixing fixture and the electrostatic gun fixing fixture are located on both sides of the support column, parallel to each other and on the same plane.
2. The support device of the electrostatic discharge simulator according to claim 1, characterized in that: The positions of the ground wire fixing fixture and the electrostatic gun fixing fixture on the support column can be adjusted up and down.
3. The support device of the electrostatic discharge simulator according to claim 1, characterized in that: The support column is provided with scale lines for determining the upper and lower positions of the ground wire fixing fixture and the electrostatic gun fixing fixture.
4. The support device of the electrostatic discharge simulator according to claim 1, characterized in that: Four universal wheels are also arranged under the base for adjusting the position of the supporting device.
5. The support device of the electrostatic discharge simulator according to claim 1, characterized in that: The support column is installed at the center of the base and includes: A threaded hole corresponding to the lower part of the support column is provided at the center position of the upper part of the base, and the support column is installed at the center position of the base through the threaded column.
6. The support device of the electrostatic discharge simulator according to claim 1, characterized in that: The base, the support column, the ground wire fixing fixture and the electrostatic gun fixing fixture are made of non-metallic materials.
7. The support device of the electrostatic discharge simulator according to claim 1, characterized in that: The size of the fixing hole of the electrostatic gun is adjustable.
8. The support device of the electrostatic discharge simulator according to claim 1, characterized in that: There are multiple ground wire fixing terminals.
9. An application of a support device for an electrostatic discharge simulator, used for installation and fixation of the electrostatic discharge simulator during calibration, characterized in that: include: Adjust the upper and lower positions of the electrostatic gun fixing fixture on the support column so that the electrostatic gun fixing fixture and the electrostatic target on the Faraday cage are at the same horizontal position; Placing the handheld part of the electrostatic discharge simulator in the electrostatic gun fixing hole of the electrostatic gun fixing fixture, and aligning the discharge head of the electrostatic discharge simulator with the center of the electrostatic target; Extend the grounding wire downward through the fixing hole of the electrostatic gun, place the middle part of the grounding wire on the grounding wire fixing terminal of the grounding wire fixing fixture, and connect the end of the grounding wire to the grounding point of the Faraday cage; Adjust the upper and lower positions of the grounding wire fixing fixture on the support column so that the placement of the grounding wire meets the preset placement requirements.
10. The use of the support device of the electrostatic discharge simulator according to claim 9, characterized in that: The preset placement requirement is that the ground wire forms an isosceles triangle.