Circuit effect test tool
By integrating multiple test fixtures and internal wiring into the circuit effect testing fixture, the problem of wasted testing time for different filter models is solved, enabling rapid adaptation and efficient testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-24
AI Technical Summary
Existing circuit performance testing fixtures require replacing test jigs and rebuilding circuits to accommodate different filter models, which is a waste of time.
Design a circuit effect testing fixture that integrates multiple types of test fixtures on the same circuit board, achieves electrical connection through internal wiring, is compatible with various filter products, and allows for quick adjustment of DC regulated power supply and oscilloscope parameters.
It enables rapid adaptation to various filter products without changing test fixtures or rebuilding circuits, thus improving testing efficiency.
Smart Images
Figure CN224035561U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit effect test technical field, especially a kind of circuit effect test tool. BACKGROUND
[0002] Filter product is needed to carry out circuit effect test after production, to judge the filtering effect of product. The circuit effect test needs to build corresponding circuit in the industry, and the composition of circuit is: DC regulated power supply, oscilloscope, test fixture, filter to be measured, power module, load and several wires. Among them, DC regulated power supply provides the DC voltage and current required for testing, oscilloscope displays the waveform of the entire circuit, test fixture is used to fix the filter to be measured and connect the filter to be measured to the circuit, power module and load constitute the equipment for installing filter to be measured. Each device is connected by wire, and the connection mode is: oscilloscope is connected in parallel at the positive and negative ports of DC regulated power supply output.
[0003] However, the current circuit effect test tool is only provided with one test fixture, when different models of filter products need to be tested, the test fixture needs to be replaced, and the circuit needs to be rebuilt, which wastes test time.
[0004] Therefore, a circuit effect test tool is provided to solve the above technical problems existing in the prior art. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of circuit effect test tool to solve the problems existing in the prior art, can adapt to multiple models of filter products, reduce the time of building circuit, improve work efficiency.
[0006] To achieve the above object, the utility model provides the following scheme:
[0007] The utility model provides a kind of circuit effect test tool, including circuit board, test fixture, load module and power module, the lead-out end is used for electrically connecting DC regulated power supply and oscilloscope, and the lead-out end is arranged on the circuit board;The test fixture of multiple different types is arranged on the circuit board, and the test fixture is used to fix filter to be tested, and is electrically connected with the filter to be tested;The load module and the power module are all fixed on the circuit board, and the load module and the test fixture are electrically connected with the power module, and the test fixture is also electrically connected with the lead-out end.
[0008] Preferably, the four corners of the circuit board are provided with through holes, and the through holes are used to fix the circuit board to the preset height by screws and nuts.
[0009] Preferably, the load module and the test fixture are electrically connected with the power module through internal wirings of the circuit board, and the test fixture is further electrically connected with the lead-out end through the internal wirings of the circuit board.
[0010] Preferably, the internal wirings of the circuit board are arranged in two layers.
[0011] Preferably, three different types of test fixtures are arranged on the circuit board, namely a first test fixture, a second test fixture and a third test fixture, and the first test fixture, the second test fixture and the third test fixture are arranged side by side in sequence.
[0012] Preferably, the pins of the test fixture are welded on the circuit board through via pads, and the via pads are electrically connected with the internal wirings of the circuit board.
[0013] Preferably, the pins of the power module are welded on the circuit board through via pads, and the via pads are electrically connected with the internal wirings of the circuit board.
[0014] Preferably, the bottom of the load module is provided with an opening for being fixed with the circuit board through a screw and a nut, and the circuit board is further provided with a top pad, the pins of the load module are electrically connected with the top pad through a wire, and the top pad is further electrically connected with the internal wirings of the circuit board.
[0015] Preferably, the lead-out end comprises a first lead-out end and a second lead-out end, the first lead-out end and the second lead-out end are respectively used for being electrically connected with a positive port and a negative port of the direct current stabilized power supply, and the oscilloscope is connected in parallel with the positive port and the negative port of the direct current stabilized power supply.
[0016] Preferably, the first lead-out end and the second lead-out end are both welded with lead wires through lower pads, the lead wires are used for electrically connecting the oscilloscope and the direct current stabilized power supply, and the second lead-out end is further provided with a via pad for connecting the internal wirings of the lower layer of the circuit board.
[0017] The utility model discloses relative to prior art has obtained following technical effect:
[0018] The utility model discloses circuit board is provided with multiple different types of test fixture, can fix different types of filter to be tested, and with corresponding filter to be tested electric connection, the multiple test fixtures of commonly used are integrated in same circuit board, and the user can according to actual conditions filter to be tested is inserted to proper test fixture, thereby can adapt multiple model filter product, also need not to rebuild or modify circuit, only need to modify direct current stabilized power supply parameter and oscilloscope parameter, improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0020] Figure 1 The structure schematic diagram of the circuit effect test tool in the embodiment of the present application is shown in the figure.
[0021] Figure 2 The setting schematic diagram of the first lead-out end and the second lead-out end in the embodiment of the present application is shown in the figure.
[0022] Figure 3 The setting schematic diagram of the three test clamps in the embodiment of the present application is shown in the figure.
[0023] Figure 4 The structure schematic diagram of the load module and the power module in the embodiment of the present application is shown in the figure.
[0024] Figure 5 The internal wiring diagram of the circuit board in the embodiment of the present application is shown in the figure.
[0025] Figure 6 The via hole pad schematic diagram of the test clamp connection in the embodiment of the present application is shown in the figure.
[0026] Figure 7 The via hole pad schematic diagram of the power module connection in the embodiment of the present application is shown in the figure.
[0027] Figure 8 The opening and top pad schematic diagram of the load module in the embodiment of the present application is shown in the figure.
[0028] Figure 9 The lower pad schematic diagram of the circuit board in the embodiment of the present application is shown in the figure.
[0029] In the figure: 1-circuit board; 101-internal wiring; 2-via hole; 3-first lead-out end; 4-second lead-out end; 5-first test clamp; 6-second test clamp; 7-third test clamp; 8-load module; 9-power module; 10-via hole pad; 11-opening; 12-top pad. DETAILED DESCRIPTION
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] The purpose of this invention is to provide a circuit effect testing fixture to solve the problems existing in the prior art, which can be adapted to various types of filter products, reduce the time for circuit construction, and improve work efficiency.
[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0033] Example 1
[0034] like Figures 1-9 As shown, this embodiment provides a circuit effect testing fixture, mainly including a circuit board 1, a test fixture, a load module 8, and a power module 9. The circuit board 1 is provided with leads for electrically connecting a DC regulated power supply and an oscilloscope (connected in parallel). The circuit board 1 is provided with various types of test fixtures for fixing different types of filters under test and electrically connecting them to the corresponding filters under test. The load module 8 and the power module 9 are both fixed on the circuit board 1, and the load module 8 and the test fixture are both electrically connected to the power module 9 to simulate the use of filter equipment. The test fixture is also electrically connected to the leads.
[0035] In this embodiment, the circuit board 1 is equipped with various types of test fixtures, which can fix different types of filters under test and electrically connect them to the corresponding filters under test. By integrating multiple commonly used test fixtures into the same circuit board 1, users can insert the filters under test into the appropriate test fixtures according to the actual situation, thereby adapting to various models of filter products. There is no need to rebuild or modify the circuit; only the parameters of the DC regulated power supply and oscilloscope need to be modified, thus improving work efficiency.
[0036] In this embodiment, through holes 2 are provided at all four corners of the circuit board 1. The through holes 2 are used to fix the circuit board 1 to a preset height by screws and nuts, so as to facilitate overall heat dissipation.
[0037] In the embodiment, the load module 8 and the test fixture are electrically connected with the power module 9 through the internal wiring 101 of the circuit board 1, and the test fixture is also electrically connected with the lead-out end through the internal wiring 101 of the circuit board 1. The internal wiring 101 of the circuit board 1 is provided with two layers of upper and lower layers for positive and negative connections, which can prevent the positive and negative lines from intersecting and causing short circuit.
[0038] In the embodiment, the circuit board 1 adopts internal wiring, and no extra connection line exists on the surface, which greatly increases the aesthetic appearance.
[0039] In the embodiment, the circuit board 1 is preferably provided with three different types of test fixtures, i.e., the first test fixture 5, the second test fixture 6 and the third test fixture 7, and the first test fixture 5, the second test fixture 6 and the third test fixture 7 are arranged side by side in sequence.
[0040] In the embodiment, the pins of the test fixture are welded on the circuit board 1 through the via pad 10, and the via pad 10 is welded with the internal wiring 101 of the circuit board 1 to achieve electrical connection, so as to connect the test fixture to the overall circuit.
[0041] Similarly, in the embodiment, the pins of the power module 9 are welded on the circuit board 1 through the via pad 10, and the via pad 10 is welded with the internal wiring 101 of the circuit board 1 to achieve electrical connection, so as to connect the power module 9 to the overall circuit.
[0042] Further, in the embodiment, the bottom of the load module 8 is provided with an opening 11 for being fixed with the circuit board 1 through a screw and a nut, and the pins of the load module 8 are electrically connected with the internal wiring 101 of the circuit board 1 through the top pad 12 for connecting the load module 8 to the overall circuit.
[0043] In the embodiment, the test fixture, the power module 9 and the load module 8 are all connected by welding, and can be removed and replaced by disassembling the welding connection points.
[0044] In the embodiment, the lead-out end includes a first lead-out end 3 and a second lead-out end 4, and the first lead-out end 3 and the second lead-out end 4 are respectively used for being electrically connected with the positive port and the negative port of the direct current stabilized power supply, and the oscilloscope is connected in parallel with the positive port and the negative port of the direct current stabilized power supply.
[0045] In the embodiment, the first lead-out end 3 and the second lead-out end 4 are both welded with lead wires through lower pads, and the lead wires are used for electrically connecting the oscilloscope and the direct current stabilized power supply; further, the second lead-out end 4 is further provided with a via hole pad 10 for connecting internal wiring 101 of the lower layer of the circuit board 1 to the top layer.
[0046] The principle and implementation mode of the specific examples are described in the utility model, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.
Claims
1. A circuit effect testing fixture, characterized in that: The device includes a circuit board, test fixtures, a load module, and a power module. The circuit board has leads for electrically connecting a DC regulated power supply and an oscilloscope. The circuit board has various types of test fixtures for fixing and electrically connecting to the filter under test. The load module and the power module are both fixed to the circuit board and electrically connected to the power module. The test fixtures are also electrically connected to the leads.
2. The circuit effect testing fixture according to claim 1, characterized in that: The circuit board has through holes at all four corners, which are used to fix the circuit board to a preset height using screws and nuts.
3. The circuit effect testing fixture according to claim 1, characterized in that: The load module and the test fixture are both electrically connected to the power module through the internal wiring of the circuit board, and the test fixture is also electrically connected to the lead-out terminal through the internal wiring of the circuit board; The circuit board has two layers of internal wiring.
4. The circuit effect testing fixture according to claim 1, characterized in that: The circuit board is provided with three different types of test fixtures, namely a first test fixture, a second test fixture and a third test fixture, and the first test fixture, the second test fixture and the third test fixture are arranged side by side in sequence.
5. The circuit effect testing fixture according to claim 3, characterized in that: The pins of the test fixture are soldered to the circuit board via via pads, and the via pads are electrically connected to the internal traces of the circuit board.
6. The circuit effect testing fixture according to claim 3, characterized in that: The pins of the power module are soldered to the circuit board via via pads, and the via pads are electrically connected to the internal traces of the circuit board.
7. The circuit effect testing fixture according to claim 3, characterized in that: The load module has an opening at its bottom for fixing to the circuit board with screws and nuts. The circuit board also has a top pad, and the pins of the load module are electrically connected to the top pad via wires. The top pad is also electrically connected to the internal traces of the circuit board.
8. The circuit effect testing fixture according to claim 3, characterized in that: The lead-out terminals include a first lead-out terminal and a second lead-out terminal. The first lead-out terminal and the second lead-out terminal are respectively used to electrically connect to the positive port and the negative port of the DC regulated power supply. The oscilloscope is connected in parallel to the positive port and the negative port of the DC regulated power supply.
9. The circuit effect testing fixture according to claim 8, characterized in that: Both the first lead and the second lead are soldered with leads via pads below, and the leads are used to electrically connect the oscilloscope and the DC regulated power supply.
10. The circuit effect testing fixture according to claim 9, characterized in that: The second lead is also provided with a through-hole pad for connecting the internal traces of the lower layer of the circuit board.