Falling reduction test tool and system

Abstract

The utility model relates to the technical field of anti-drop testing, in particular to an anti-drop testing tool and system, which are used for measuring anti-drop of soft magnetic ferrite materials, and the anti-drop testing tool comprises a testing plate and an electromagnetic adjusting device, the test board comprises a single-pole double-throw switch, a test port, an instrument connection interface and a fixed plate; the single-pole double-throw switch, the test port and the instrument connection interface are respectively arranged on the fixed plate; the test port is electrically connected with the open end of the single-pole double-throw switch, the electromagnetic adjusting device is electrically connected with the power-up end of the single-pole double-throw switch, and the instrument connection interface is electrically connected with the test end of the single-pole double-throw switch. According to the utility model, the test efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drop test, in particular to a drop test tool and system. Background Art

[0002] Demagnetization refers to the phenomenon that the magnetic permeability of soft ferrite decreases over time after being subjected to external shocks such as electricity, magnetism, light, heat and machinery.

[0003] In practical applications, soft ferrite materials often need to withstand various external impacts, so the stability of their magnetic permeability is crucial to ensure the normal operation of the equipment.

[0004] In the test, usually when the soft ferrite material is measured for dropout, according to the provisions of GJB1931A, the number of standard sample rings to be tested is five. After each measurement process, the sample must be magnetically normalized and then measured at the next two specified times. If the measurement is performed one by one, the test efficiency is very low.

[0005] Therefore, there is an urgent need for a drop test fixture and system. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a drop reduction test tool and system, which solves the technical problem of low test efficiency.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0010] In a first aspect, an embodiment of the utility model provides a drop test tool for measuring the drop of soft ferrite materials, comprising:

[0011] Test board, electromagnetic adjustment device;

[0012] The test board comprises: a single-pole double-throw switch, a test port, an instrument connection interface and a fixing plate; the single-pole double-throw switch, the test port and the instrument connection interface are respectively arranged on the fixing plate;

[0013] The test port is electrically connected to the public end of the single-pole double-throw switch, the electromagnetic adjustment device is electrically connected to the power-on end of the single-pole double-throw switch, and the instrument connection interface is electrically connected to the test end of the single-pole double-throw switch.

[0014] Optionally, the test board further comprises: a test line;

[0015] The test ports include N first test ports and N second test ports;

[0016] The first end of the test line is electrically connected to the first end of the public end of the single-pole double-throw switch, and the second end of the test line is electrically connected to any second test port; the first test port is connected in series to the second end of the public end of the single-pole double-throw switch;

[0017] The N is a natural number greater than or equal to 1.

[0018] Optionally, the test board further includes: a positive power supply interface and a negative power supply interface;

[0019] The first end of the power-on end of the single-pole double-throw switch is electrically connected to the positive power supply interface, the positive power supply interface is electrically connected to the high potential end of the electromagnetic regulating device, the low potential end of the electromagnetic regulating device is electrically connected to the negative power supply interface, and the negative power supply interface is electrically connected to the second end of the power-on end of the single-pole double-throw switch.

[0020] Optionally, the electromagnetic regulating device comprises: an excitation power supply, an adjustable resistor, a fuse, and an ammeter;

[0021] The positive pole of the ammeter is electrically connected to the positive pole interface of the power supply, the negative pole of the ammeter is electrically connected to the positive pole of the excitation power supply, the negative pole of the excitation power supply is electrically connected to the adjustable resistor, the adjustable resistor is electrically connected to the fuse, and the fuse is electrically connected to the negative pole interface of the power supply.

[0022] Optionally, the adjustable resistor is a sliding resistor with a resistance range of 0Ω to 10kΩ.

[0023] Optionally, the test board further comprises: a support frame;

[0024] The support frame is fixed on the bottom of the test board.

[0025] Optionally, the test board further includes: an indicator light;

[0026] The indicator light is electrically connected to the power-on end of the single-pole double-throw switch.

[0027] In a second aspect, the embodiment of the utility model provides a drop test system for measuring the drop of soft ferrite materials, comprising:

[0028] Drop test tooling, test instruments, and computers;

[0029] The drop test fixture is the drop test fixture described in any one of the claims;

[0030] The test meter is electrically connected to the meter connection interface, and the computer is electrically connected to the test meter.

[0031] Optionally, the test meter is an LCR meter.

[0032] (III) Beneficial effects

[0033] The beneficial effect of the utility model is that the drop test fixture and system of the utility model can improve the work efficiency compared with the prior art due to the use of the drop test fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of a drop test fixture structure of Example 1 of the utility model;

[0035] Figure 2 This is a schematic diagram of the structure of a drop test system according to Example 2 of the utility model.

[0036] [Description of Reference Numerals]

[0037] 1: Excitation power supply; 2: Adjustable resistor; 3: Fuse; 4: Positive power supply interface; 5: Negative power supply interface; 6: First test port; 7: Second test port; 8: Instrument connection interface; 9: Single-pole double-throw switch; 10: Test line; 11: Fixing plate; 12: Indicator light; 13: Test instrument; 14: Computer; 15: Ammeter. DETAILED DESCRIPTION

[0038] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0039] The utility model embodiment proposes a drop test fixture and system, in order to solve the technical problem of low efficiency in drop measurement, a drop test fixture and system are proposed, and the measurement efficiency is improved by designing a single-pole double-throw switch and multiple test ports on the drop test fixture.

[0040] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0041] Specific embodiment description part

[0042] Example 1

[0043] See also Figure 1 The utility model provides a drop test tool for measuring the drop of soft ferrite materials, comprising:

[0044] Test board, electromagnetic adjustment device;

[0045] The test board includes: a single-pole double-throw switch 9, a test port, an instrument connection interface 8 and a fixing plate 11; the single-pole double-throw switch 9, the test port and the instrument connection interface 8 are respectively arranged on the fixing plate 11.

[0046] The test port is electrically connected to the public end of the single-pole double-throw switch 9 , the electromagnetic adjustment device is electrically connected to the power-on end of the single-pole double-throw switch 9 , and the instrument connection interface 8 is electrically connected to the test end of the single-pole double-throw switch 9 .

[0047] In this embodiment, a single-pole double-throw switch 9 is set, and the single-pole double-throw switch 9 has a power-on end, a test end, and a public end. When the single-pole double-throw switch 9 is turned to the power-on end, the sample can be magnetically normalized. When the single-pole double-throw switch 9 is turned to the test end, the sample that has been magnetically normalized can be measured for drop.

[0048] In this embodiment, the two working modes can be switched by simply toggling the single-pole double-throw switch 9, which not only improves the flexibility and versatility of the test tooling, but also reduces the difficulty of operation and improves the convenience of the test tooling.

[0049] In the specific implementation process, the test board also includes: a test line 10;

[0050] The test ports include N first test ports 6 and N second test ports 7;

[0051] The first end of the test line 10 is electrically connected to the first end of the public end of the single-pole double-throw switch 9, and the second end of the test line 10 is electrically connected to any second test port 7; the first test port 6 is connected in series to the second end of the public end of the single-pole double-throw switch 9;

[0052] N is a natural number greater than or equal to 1.

[0053] In the specific implementation process, according to the GJB1931A specification, the number of standard sample rings for drop test is five.

[0054] In this embodiment, for example, N is 5, 5 samples are respectively connected to 5 second test ports 7, and the second ends of the test lines 10 are respectively connected to 5 samples for dropout testing.

[0055] In a specific implementation process, by setting the test line 10, it can quickly switch between different second test ports 7, thereby improving the test efficiency and the flexibility of the test tooling.

[0056] In this embodiment, the test board further includes: a positive power supply interface 4 and a negative power supply interface 5;

[0057] The first end of the power-on end of the single-pole double-throw switch 9 is electrically connected to the positive power supply interface 4, the positive power supply interface 4 is electrically connected to the high potential end of the electromagnetic regulating device, the low potential end of the electromagnetic regulating device is electrically connected to the negative power supply interface 5, and the negative power supply interface 5 is electrically connected to the second end of the power-on end of the single-pole double-throw switch 9.

[0058] By setting clear positive power supply interface 4 and negative power supply interface 5, it is helpful to improve the safety of the drop test fixture. The operator can clearly distinguish the positive and negative poles to avoid safety hazards or equipment damage caused by incorrect wiring.

[0059] In this embodiment, the electromagnetic regulating device includes: an excitation power supply 1, an adjustable resistor 2, a fuse 3, and an ammeter 15;

[0060] The positive pole of the ammeter 15 is electrically connected to the positive pole interface 4 of the power supply, the negative pole of the ammeter 15 is electrically connected to the positive pole of the excitation power supply 1, the negative pole of the excitation power supply 1 is electrically connected to the adjustable resistor 2, the adjustable resistor 2 is electrically connected to the fuse 3, and the fuse 3 is electrically connected to the negative pole interface 5 of the power supply.

[0061] In this embodiment, the fuse 3 is a fuse.

[0062] In the specific implementation process, the excitation power supply 1 can provide a stable current, and the current can be accurately adjusted through the adjustable resistor 2, thereby controlling the magnetic field strength applied to the soft ferrite material. At the same time, a fuse 3 is provided to quickly cut off the power supply when the circuit is overloaded or short-circuited, thereby protecting the entire drop test fixture and the sample from damage.

[0063] In this embodiment, the adjustable resistor 2 is a sliding resistor with a resistance range of 0Ω to 10kΩ.

[0064] In this embodiment, the test board further includes: a support frame;

[0065] The support frame is fixed on the bottom of the test board.

[0066] In this embodiment, the support frame is a height-adjustable support frame.

[0067] By setting a support frame at the bottom of the test board, the test board can be kept at a certain distance from the work surface, which is beneficial to the utilization of the space below. At the same time, the support frame is an adjustable height support frame, so that the drop test tooling in this embodiment can adapt to different working environments and usage scenarios, thereby enhancing the versatility and flexibility of the tooling.

[0068] In the specific implementation process, the test board also includes: an indicator light 12;

[0069] The indicator light 12 is electrically connected to the power-on end of the single-pole double-throw switch 9 .

[0070] In this embodiment, the indicator light 12 is electrically connected to the power-on end of the single-pole double-throw switch 9. The indicator light 12 lights up when power is applied and goes out when testing. This can display the working status of the drop test fixture in this embodiment, thereby improving the safety of operation. When a fault occurs, the problem can be quickly located, thereby improving the speed of fault diagnosis.

[0071] A drop test fixture in this embodiment, by setting a single-pole double-throw switch 9 and multiple test ports, fully utilizes the time difference between two specified times when performing a drop test, shortens the test time of multiple samples, improves efficiency, and makes the test process convenient, fast, and clear.

[0072] Example 2

[0073] See also Figure 2 A drop test system of this embodiment is used to measure the drop of soft ferrite materials, including:

[0074] Drop test tooling, test instrument 13, computer 14;

[0075] The drop test fixture is any drop test fixture described in Example 1;

[0076] The test meter 13 is electrically connected to the meter connection interface 8 , and the computer 14 is electrically connected to the test meter 13 .

[0077] The test meter 13 is an LCR meter.

[0078] A drop test system in this embodiment uses any of the drop test fixtures described in Example 1 and introduces a computer 14 to obtain the readings displayed on the LCR meter and calculate the drop of the sample. It fully utilizes the time difference between the two specified times during the drop test and effectively improves work efficiency.

[0079] In the description of the present utility model, it should be understood that 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0080] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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.

[0081] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0082] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0083] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A drop test tool, characterized in that: Used to measure the drop of soft ferrite materials, including: Test board, electromagnetic adjustment device; The test board comprises: a single-pole double-throw switch (9), a test port, an instrument connection interface (8) and a fixing plate (11); the single-pole double-throw switch (9), the test port and the instrument connection interface (8) are respectively arranged on the fixing plate (11); The test port is electrically connected to the open end of the single-pole double-throw switch (9), the electromagnetic adjustment device is electrically connected to the power-on end of the single-pole double-throw switch (9), and the instrument connection interface (8) is electrically connected to the test end of the single-pole double-throw switch (9).

2. A drop test fixture according to claim 1, characterized in that: The test board further comprises: a test line (10); The test ports include N first test ports (6) and N second test ports (7); The first end of the test line (10) is electrically connected to the first end of the public end of the single-pole double-throw switch (9), and the second end of the test line (10) is electrically connected to any second test port (7); the first test port (6) is connected in series to the second end of the public end of the single-pole double-throw switch (9); The N is a natural number greater than or equal to 1.

3. A drop test fixture according to claim 1, characterized in that: The test board also includes: a positive power supply interface (4) and a negative power supply interface (5); The first end of the power-on end of the single-pole double-throw switch (9) is electrically connected to the positive power supply interface (4), the positive power supply interface (4) is electrically connected to the high potential end of the electromagnetic regulating device, the low potential end of the electromagnetic regulating device is electrically connected to the negative power supply interface (5), and the negative power supply interface (5) is electrically connected to the second end of the power-on end of the single-pole double-throw switch (9).

4. A drop test fixture according to claim 3, characterized in that: The electromagnetic regulating device comprises: an excitation power supply (1), an adjustable resistor (2), a fuse (3), and an ammeter (15); The positive pole of the ammeter (15) is electrically connected to the positive pole interface (4) of the power supply, the negative pole of the ammeter (15) is electrically connected to the positive pole of the excitation power supply (1), the negative pole of the excitation power supply (1) is electrically connected to the adjustable resistor (2), the adjustable resistor (2) is electrically connected to the fuse (3), and the fuse (3) is electrically connected to the negative pole interface (5) of the power supply.

5. A drop test fixture according to claim 4, characterized in that: The adjustable resistor (2) is a sliding resistor with a resistance range of 0Ω to 10kΩ.

6. A drop test fixture according to claim 1, characterized in that: The test board also includes: a support frame; The support frame is fixed on the bottom of the test board.

7. A drop test fixture according to claim 4, characterized in that: The test board also includes: an indicator light (12); The indicator light (12) is electrically connected to the power-on end of the single-pole double-throw switch (9).

8. A drop test system, characterized in that: Used to measure the drop of soft ferrite materials, including: Drop test tool, test instrument (13), computer (14); The drop test fixture is the drop test fixture according to any one of claims 1 to 7; The test meter (13) is electrically connected to the meter connection interface (8), and the computer (14) is electrically connected to the test meter (13).

9. A drop test system according to claim 8, characterized in that: The test meter (13) is an LCR meter.

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