Power input bad contact simulator

Abstract

The present invention relates to the technical field of power supply testing equipment, and provides a power supply input poor contact simulator, comprising an intermediate conductor that can rotate around its own central axis, an input contact metal sheet and an output contact metal sheet respectively abutting against the intermediate conductor, and an input wire electrically connected to the input contact metal sheet and an output wire electrically connected to the output contact metal sheet; an input path and an output path are provided on the end face of the intermediate conductor, and a plurality of input grooves and output grooves are respectively provided in the range of the input path and the output path of the intermediate conductor, and the input contact metal sheet slides on the input path and sequentially passes through each input groove when the intermediate conductor rotates, and the output contact metal sheet slides on the output path and sequentially passes through each output groove when the intermediate conductor rotates. The present invention can solve the problem that the existing method for simulating and testing poor power supply input is highly dangerous and uncontrollable.

Description

Technical Field

[0001] The invention relates to the technical field of power supply testing equipment, and in particular to a power supply input poor contact simulator. Background Art

[0002] When the switching power supply is in use, if there is a poor contact of the input socket or the cable connector, the input power will be intermittent and produce impacts. This current impact has a greater impact on the power devices of the power supply. If the power supply does not have high reliability, this impact will damage the power devices of the power supply and make the power supply fail. In order to test whether the switching power supply can work normally under such circumstances and improve the reliability of the power supply, a special device that simulates this poor contact is needed.

[0003] However, currently, laboratories can only simulate the test of poor power input by touching the connecting wires, which is highly dangerous and uncontrollable. Summary of the invention

[0004] The purpose of the present invention is to provide a power input poor contact simulator, aiming to solve the problems that the existing methods for simulating and testing the power input poor contact are highly dangerous and uncontrollable.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A power input poor contact simulator comprises an intermediate conductor rotatable around its own central axis, an input contact metal sheet and an output contact metal sheet respectively abutting against the intermediate conductor, an input wire electrically connected to the input contact metal sheet and an output wire electrically connected to the output contact metal sheet; an input path and an output path are provided on the end surface of the intermediate conductor, a plurality of input grooves and output grooves are respectively provided in the range of the input path and the output path of the intermediate conductor, the input contact metal sheet slides on the input path and sequentially passes through each input groove when the intermediate conductor rotates, and the output contact metal sheet slides on the output path and sequentially passes through each output groove when the intermediate conductor rotates.

[0007] Beneficial effects of the present invention: The power input poor contact simulator provided by the present invention forms a loop through the input wire, input contact metal sheet, intermediate conductor, output contact metal sheet and output wire. When the intermediate conductor rotates, the input contact metal sheet slides within the input path range of the intermediate conductor, and the output contact metal sheet slides within the output path range of the intermediate conductor. At this time, the input contact metal sheet and the output contact metal sheet will slide through each input groove and output groove in turn during the sliding process, so that the input contact metal sheet and the output contact metal sheet will slide into and out of the input groove and the output groove accordingly, and due to inertia, the input contact metal sheet and the output contact metal sheet will have irregular contact and disconnection with the intermediate conductor due to jumping, thereby generating irregular input shock deformed waves, thereby realizing a simulation test of poor power input contact.

[0008] In one embodiment, the input path and the output path are respectively provided with a plurality of insulating sheets, and each insulating sheet is respectively provided between adjacent input grooves and between adjacent output grooves.

[0009] By adopting the above technical solution, insulating sheets are arranged on the input path and the output path to ensure that even if the input contact metal sheet and the output contact metal sheet do not jump, they can be effectively disconnected from the intermediate conductor to achieve a reliable switching process.

[0010] In one embodiment, the input path and the output path are symmetrically located on two opposite sides of the central conductor.

[0011] By adopting the above technical solution, the input path and the output path are symmetrically located on two opposite sides of the intermediate conductor, that is, the input contact metal sheet and the output contact metal sheet are respectively against the opposite two side surfaces of the intermediate conductor, and force is applied to the intermediate conductor from the opposite two side surfaces, so that the stability of the intermediate conductor is enhanced.

[0012] In one embodiment, a power input poor contact simulator includes a positioning device, which includes a fixed bracket, two adjustment rods rotatably connected to the fixed bracket at one end, and a tension spring connected between the two adjustment rods, and the input contact metal sheet and the output contact metal sheet are respectively installed on the corresponding adjustment rods away from one end of the fixed bracket.

[0013] By adopting the above technical solution, a positioning device is used to install the input contact metal sheet and the output contact metal sheet, and one end of the two adjustment rods is rotatably connected to the fixed bracket, and the other end of the adjustment rod is installed with the input contact metal sheet and the output contact metal sheet, and is connected between the two adjustment rods through a tension spring, so that the adjustment rods have a tendency to move toward each other, thereby making the input contact metal sheet and the output contact metal sheet installed on the adjustment rods abut against the middle conductor.

[0014] In one embodiment, the positioning device further comprises a cushion block disposed at the bottom of the adjusting rod, and the adjusting rod is slidably connected to the cushion block.

[0015] By adopting the above technical solution, a cushion block is arranged at the bottom of the adjusting rod to support the adjusting rod, so that the adjusting rod can slide on the cushion block, effectively ensuring the stability of the movement of the adjusting rod.

[0016] In one embodiment, the power input poor contact simulator includes a positioning device, the positioning device includes a fixing rod, and the input contact metal sheet and the output contact metal sheet are respectively mounted on the fixing rod.

[0017] By adopting the above technical solution, a positioning device is used to install the input contact metal sheet and the output contact metal sheet, the fixing rod is used as the positioning device, and the input contact metal sheet and the output contact metal sheet are installed on the fixing rod, the structure is simple, and the installation is more convenient.

[0018] In one embodiment, the input contact metal sheet has an input contact end, and the output contact metal sheet has an output contact end, and the input contact end and the output contact end are arc-shaped.

[0019] By adopting the above technical solution, by designing the input contact end and the output contact end to be arc-shaped respectively, when the input contact metal sheet and the output contact metal sheet slide on the input path and the output path of the intermediate conductor, the arc-shaped input contact end and the output contact end contact the intermediate conductor respectively, so that the input contact metal sheet and the output contact metal sheet slide on the intermediate conductor more smoothly, and the input contact metal sheet and the output contact metal sheet are more likely to bounce when passing through the input groove and the output groove respectively, so as to improve the simulation effect.

[0020] In one embodiment, the poor contact simulator further includes an insulating box, which covers the middle conductor, the input contact metal sheet and the output contact metal sheet.

[0021] By adopting the above technical solution, the intermediate conductor, the input contact metal sheet and the output contact metal sheet are covered inside by the insulating box, thereby effectively ensuring the safety during the test.

[0022] In one embodiment, the poor contact simulator further includes a rotating handle disposed outside the insulating box, one end of the rotating handle being inserted into the insulating box and connected to the center of the intermediate conductor.

[0023] By adopting the above technical solution, the middle conductor in the insulating box is controlled to rotate by rotating the handle, so as to control the input contact metal sheet and the output contact metal sheet to slide on the input path and the output path, thereby achieving a simulation effect.

[0024] In one embodiment, the rotating handle is an insulated handle.

[0025] By adopting the above technical solution, the insulating handle is used as the rotating handle to ensure the safety of the operator when using the poor contact simulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0027] Figure 1 A schematic diagram of the structure of a poor contact simulator provided by an embodiment of the present invention;

[0028] Figure 2 A side view of a poor contact simulator provided by an embodiment of the present invention;

[0029] Figure 3 A front view of a poor contact simulator provided by an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure of a positioning device provided by an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of another positioning device provided by an embodiment of the present invention;

[0032] Figure 6 A schematic structural diagram of a poor contact simulator with an insulating housing provided in an embodiment of the present invention;

[0033] Figure 7 A set of input and output waveform comparison diagrams provided for an embodiment of the present invention.

[0034] Among them, the reference numerals in the figure are:

[0035] Intermediate conductor 10, input path 101, output path 102, input groove 11, output groove 12, insulating sheet 13, input contact metal sheet 20, input contact end 201, input wire 21, output contact metal sheet 30, output contact end 301, output wire 31, positioning device 40, fixing bracket 41, adjusting rod 42, tension spring 43, cushion block 44, fixing rod 45, insulating box 50, rotating handle 60. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Please refer to Figures 1 to 3The present invention provides a power input poor contact simulator, comprising an intermediate conductor 10 that can rotate around its own central axis, an input contact metal sheet 20 and an output contact metal sheet 30 respectively abutting against the intermediate conductor 10, and an input wire 21 electrically connected to the input contact metal sheet 20 and an output wire 31 electrically connected to the output contact metal sheet 30. An input path 101 and an output path 102 are provided on the end surface of the intermediate conductor 10, wherein the input path 101 refers to the track range of the input contact metal sheet 20 sweeping across the intermediate conductor 10 when the intermediate conductor 10 rotates, for example, when the intermediate conductor 10 rotates around the center, the input contact metal sheet 20 will sweep a circular track on the rotating intermediate conductor 10, and the track is the input path 101; similarly. The output path 102 refers to the track range of the output contact metal sheet 30 sweeping across the intermediate conductor 10 when the intermediate conductor 10 rotates. The intermediate conductor 10 is provided with a plurality of input grooves 11 and output grooves 12 within the range of the input path 101 and the output path 102. When the intermediate conductor 10 rotates, the input contact metal sheet 20 slides on the input path 101 and sequentially passes through each input groove 11. When the intermediate conductor 10 rotates, the output contact metal sheet 30 slides on the output path 102 and sequentially passes through each output groove 13.

[0041] Specifically, the intermediate conductor 10 can adopt a metal disc structure to facilitate conduction and rotation. In this embodiment, an aluminum turntable is used as the intermediate conductor 10, and the aluminum turntable is rotated around its center. The input contact metal sheet 20 and the output contact metal sheet 30 mainly play the role of conducting electricity and sliding on the intermediate conductor 10 and jumping through the input groove 11 and the output groove 12. Therefore, in this embodiment, a copper sheet with a certain elasticity is used as the input contact metal sheet 20 and the output contact metal sheet 30.

[0042] The power input poor contact simulator provided by the present invention forms a loop through the input wire 21, the input contact metal sheet 20, the intermediate conductor 10, the output contact metal sheet 30 and the output wire 31. When the intermediate conductor 10 rotates, the input contact metal sheet 20 slides within the input path 101 of the intermediate conductor 10, and the output contact metal sheet 30 slides within the output path 102 of the intermediate conductor 10. At this time, the input contact metal sheet 20 and the output contact metal sheet 30 will slide through each input groove 11 and the output groove 12 in turn during the sliding process, so that the input contact metal sheet 20 and the output contact metal sheet 30 will slide into the input groove 11 and the output groove 12 and move out of the input groove 11 and the output groove 12, and due to inertia, the input contact metal sheet 20 and the output contact metal sheet 30 will have irregular contact and disconnection with the intermediate conductor 10 due to jumping, thereby generating irregular input shock deformed waves, thereby realizing a simulation test of poor power input contact.

[0043] Please refer to Figure 3 In one embodiment, the input path 101 and the output path 102 are respectively provided with a plurality of insulating sheets 13, and each insulating sheet 13 is respectively provided between adjacent input grooves 11 and adjacent output grooves 12. The insulating sheets 13 are provided on the input path 101 and the output path 102 to ensure that even if the input contact metal sheet 20 and the output contact metal sheet 30 do not bounce, they can be effectively disconnected from the intermediate conductor 10 to achieve a reliable on-off process.

[0044] Please refer to Figure 2 In one embodiment, the input path 101 and the output path 102 are symmetrically located on two opposite sides of the intermediate conductor 10. By symmetrically locating the input path 101 and the output path 102 on two opposite sides of the intermediate conductor 10, that is, the input contact metal sheet 20 and the output contact metal sheet 30 are respectively pressed against two opposite sides of the intermediate conductor 10, and by applying force to the intermediate conductor 10 from the two opposite sides, the stability of the intermediate conductor 10 is enhanced.

[0045] Please refer to Figure 1 and Figure 4 In one embodiment, the power input poor contact simulator includes a positioning device 40, which includes a fixed bracket 41, two adjustment rods 42 with one end rotatably connected to the fixed bracket 41, and a tension spring 43 connected between the two adjustment rods 42. The input contact metal sheet 20 and the output contact metal sheet 30 are respectively installed on the corresponding adjustment rods 42 at one end away from the fixed bracket 41. The positioning device 40 is used to install the input contact metal sheet 20 and the output contact metal sheet 30. By rotating one end of the two adjustment rods 42 to the fixed bracket 41, the input contact metal sheet 20 and the output contact metal sheet 30 are installed on the other end of the adjustment rod 42, and connected between the two adjustment rods 42 through the tension spring 43, so that the adjustment rods 42 have a tendency to move toward each other, thereby making the input contact metal sheet 20 and the output contact metal sheet 30 installed on the adjustment rod 42 abut against the intermediate conductor 10. During the rotation of the intermediate conductor 10, the input contact metal sheet 20 and the output contact metal sheet 30 are pressed against the intermediate conductor 10 by the action of the tension spring 43 pulling the adjustment rod 42, so that the input contact metal sheet 20 and the output contact metal sheet 30 continuously pass through the input groove 11 and the output groove 12, and under the action of the tension spring 43, the input contact metal sheet 20 and the output contact metal sheet 30 jump on the intermediate conductor 10 to generate an irregular input shock deformed wave, thereby realizing a simulation test of poor power input contact.

[0046] Please continue to refer to Figure 4Specifically, the positioning device 40 further includes a cushion block 44 disposed at the bottom of the adjustment rod 42, and the adjustment rod 42 is slidably connected to the cushion block 44. The cushion block 44 is disposed at the bottom of the adjustment rod 42 to support the adjustment rod 42, so that the adjustment rod 42 can slide on the cushion block 44, effectively ensuring the stability of the movement of the adjustment rod 42.

[0047] Specifically, the input contact metal sheet 20 has an input contact end 201, and the output contact metal sheet 30 has an output contact end 301, and the input contact end 201 and the output contact end 301 are respectively arc-shaped. By designing the input contact end 201 and the output contact end 301 to be respectively arc-shaped, when the input contact metal sheet 20 and the output contact metal sheet 30 slide on the input path 101 and the output path 102 of the intermediate conductor 10, the arc-shaped input contact end 201 and the output contact end 301 are respectively in contact with the intermediate conductor 10, so that the input contact metal sheet 20 and the output contact metal sheet 30 slide on the intermediate conductor 10 more smoothly, and the input contact metal sheet 20 and the output contact metal sheet 30 are more likely to bounce when passing through the input groove 11 and the output groove 12, so as to improve the simulation effect.

[0048] Please refer to Figure 6 In one embodiment, the poor contact simulator further includes an insulating box 50, which covers the intermediate conductor 10, the input contact metal sheet 20, and the output contact metal sheet 30. The intermediate conductor 10, the input contact metal sheet 20, and the output contact metal sheet 30 are covered inside by the insulating box 50, thereby effectively ensuring the safety during the test. At the same time, in order to facilitate observation of the interior of the insulating box 50, the insulating box 50 in this embodiment adopts an organic glass box.

[0049] Meanwhile, the poor contact simulator further includes a rotating handle 60 disposed outside the insulating box 50, one end of which is inserted into the insulating box 50 and connected to the center of the intermediate conductor 10. The rotating handle 60 is used to control the intermediate conductor 10 in the insulating box 50 to rotate, so as to control the input contact metal sheet 20 and the output contact metal sheet 30 to slide on the input path 101 and the output path 102, thereby achieving a simulation effect.

[0050] Preferably, the rotating handle 60 is an insulating handle. The insulating handle is used as the rotating handle 60 to ensure the safety of the operator when using the poor contact simulator.

[0051] Please refer to Figure 5In one embodiment, the power input poor contact simulator includes a positioning device 40, the positioning device 40 includes a fixing rod 45, and the input contact metal sheet 20 and the output contact metal sheet 30 are respectively installed on the fixing rod 45. The positioning device 40 is used to install the input contact metal sheet 20 and the output contact metal sheet 30, and the fixing rod 45 is used as the positioning device 40, and the input contact metal sheet 20 and the output contact metal sheet 30 are installed on the fixing rod 45, which has a simple structure and is more convenient to install.

[0052] When the present invention is working, the handle 60 is manually turned to control the rotation of the intermediate conductor 10, so that the input contact metal sheet 20 and the output contact metal sheet 30 slide on the input path 101 and the output path 102 of the intermediate conductor 10, and then the input groove 11 and the output groove 12 are set to make the input contact metal sheet 20 and the output contact metal sheet 30 fall into the input groove 11 and the output groove 12 respectively under the action of the tension spring 43, and then separate from the input groove 11 and the output groove 12 respectively as the intermediate conductor 10 rotates, and due to inertia, the input contact metal sheet 20 and the output contact metal sheet 30 and the intermediate conductor 10 are irregularly contacted and disconnected due to jumping, generating irregular input shock deformed waves, and realizing simulation test of poor power input contact. The poor contact simulator of the present invention fills the equipment gap of poor input contact test of switching power supplies, and various input shocks can be obtained by adding or removing insulating sheets 13 on the turntable, changing the rotation speed, etc. Please refer to Figure 7 As shown, Figure 7 It is a set of input and output small comparison diagrams obtained by controlling the number and rotation speed of the insulating sheets 13. Line 1 in the figure is the output waveform of the power supply, and line 2 in the figure is the input waveform of the power supply. It can be clearly found in the figure that the output waveform has undergone a huge change. Moreover, since the conductive part of the poor contact simulator is fixed in the insulating box 50, it is very safe and reliable.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power input poor contact simulator, characterized in that: It includes an intermediate conductor that can rotate around its own central axis, an input contact metal sheet and an output contact metal sheet respectively abutting against the intermediate conductor, an input wire electrically connected to the input contact metal sheet, and an output wire electrically connected to the output contact metal sheet; the intermediate conductor has an input path and an output path on its end face, and the intermediate conductor is provided with a plurality of input grooves and output grooves within the range of the input path and the output path, respectively; the input contact metal sheet slides on the input path and sequentially passes through each of the input grooves when the intermediate conductor rotates, and the output contact metal sheet slides on the output path and sequentially passes through each of the output grooves when the intermediate conductor rotates; the poor contact simulator also includes an organic glass box, and the organic glass box covers the intermediate conductor, the input contact metal sheet, and the output contact metal sheet.

2. The power input poor contact simulator according to claim 1, characterized in that: A plurality of insulating sheets are respectively arranged on the input path and the output path, and each insulating sheet is respectively arranged between adjacent input grooves and between adjacent output grooves.

3. The power input poor contact simulator according to claim 2, characterized in that: The input path and the output path are symmetrically located on two opposite sides of the intermediate conductor.

4. The power input poor contact simulator according to claim 3, characterized in that: The power input poor contact simulator includes a positioning device, which includes a fixed bracket, two adjustment rods with one end rotatably connected to the fixed bracket, and a tension spring connected between the two adjustment rods, and the input contact metal sheet and the output contact metal sheet are respectively installed on the corresponding end of the adjustment rod away from the fixed bracket.

5. The power input poor contact simulator according to claim 4, characterized in that: The positioning device also includes a cushion block arranged at the bottom of the adjustment rod, and the adjustment rod is slidably connected to the cushion block.

6. The power input poor contact simulator according to claim 3, characterized in that: The power input poor contact simulator comprises a positioning device, and the positioning device comprises a fixing rod, and the input contact metal sheet and the output contact metal sheet are respectively mounted on the fixing rod.

7. The power input poor contact simulator according to any one of claims 1 to 6, characterized in that: The input contact metal sheet has an input contact end, and the output contact metal sheet has an output contact end, and the input contact end and the output contact end are respectively arc-shaped.

8. The power input poor contact simulator according to claim 1, characterized in that: The poor contact simulator also includes a rotating handle arranged outside the organic glass box, one end of the rotating handle is inserted into the organic glass box and connected to the center of the intermediate conductor.

9. The power input poor contact simulator according to claim 8, characterized in that: The rotating handle adopts an insulating handle.

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