A feedthrough filter parameter testing device
By using a brass upper base, product mounting plate, lower base, and locking screw, combined with flexible connecting cables and a circular design, the problems of poor electromagnetic shielding effect and complex processing in existing technologies have been solved, achieving efficient and low-cost filter parameter testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU FEIAOTE TECH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-29
Smart Images
Figure CN224303786U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of testing equipment technology, specifically relating to a feedthrough filter parameter testing device. Background Technology
[0002] Currently, with the diversification of electronic product structures and the increasing frequency of operation, higher and higher demands are being placed on efficient and simple testing and shielding devices for the frequency characteristics testing of electronic components. Due to the wide variety of feedthrough capacitors and feedthrough filters, testing and shielding devices must not only have excellent shielding performance and reliable transmission line connections, but also be compatible with the testing requirements of products of various sizes. Furthermore, the devices must be easy to manufacture, inexpensive, and convenient to install. In practical use, the inventors have discovered that existing technologies still have technical problems in adapting to various filters and inadequate electromagnetic interference shielding. Utility Model Content
[0003] To address the problems of poor adaptability and weak electromagnetic shielding in existing technologies, this invention proposes a feedthrough filter parameter testing device, comprising an upper base, a test slot, a product mounting plate, a locking screw, a flexible connecting cable, and a lower base. The product mounting plate is placed between the upper and lower bases and secured by the locking screw. The test slot is detachably mounted on the product mounting plate. The upper base, product mounting plate, and lower base each have a slot for installing a flexible connecting cable. All components—the upper base, product mounting plate, lower base, and locking screw—are made of brass.
[0004] Ideally, the upper base, product mounting plate, lower base, and locking screws all adopt a circular structure.
[0005] Preferably, the lower base and the surface of the locking screw are provided with knurling.
[0006] Preferably, a signal input plug is installed at the top of the upper base.
[0007] Preferably, a signal output plug is provided at the bottom of the lower base.
[0008] Ideally, both the signal input plug and the signal output plug should be made of brass.
[0009] Preferably, the signal input plug is connected to the signal output plug via a flexible connecting cable.
[0010] Ideally, the flexible connecting cable should be made of pure silver.
[0011] Compared with the prior art, the technical solution of this utility model has the following advantages / benefits:
[0012] 1. This utility model uses brass locking screws, upper base and lower base to fix the product mounting plate, which can effectively complete electronic shielding, and output signals through built-in flexible connecting cables, thereby increasing the accuracy of testing.
[0013] 2. This utility model makes extensive use of circular structures, which makes processing more convenient, reduces the gap between parts, effectively improves the locking effect of the locking screw, and enhances the stability of the test.
[0014] 3. The product mounting plate used in this utility model is equipped with a replaceable test card slot, which can quickly change different test card slots according to different products under test, effectively improving testing efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a half-section structural schematic diagram of a feedthrough filter parameter testing device according to the present invention.
[0017] The markings in the diagram are as follows: 1. Signal input plug; 2. Upper base; 3. Test card slot; 4. Product mounting plate; 5. Locking screw; 6. Flexible connecting cable; 7. Lower base; 8. Signal output plug. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the detailed description of the embodiments of this utility model provided below is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model.
[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
[0020] Example:
[0021] like Figure 1 As shown, this utility model proposes a feedthrough filter parameter testing device, including a signal input plug 1, an upper base 2, a test slot 3, a product mounting plate 4, a locking screw 5, a flexible connecting cable 6, a lower base 7, and a signal output plug 8; the signal input plug 1 is installed at the top of the upper base 2; the product mounting plate 4 is placed between the upper base 2 and the lower base 7 and is fixed by the locking screw 5; the test slot 3 is detachably installed on the product mounting plate 4; the signal output plug 8 is installed at the bottom of the lower base 7; the signal input plug 1 is connected to the signal output plug 8 through the flexible connecting cable 6.
[0022] Install the feedthrough capacitor or feedthrough filter awaiting testing on the test slot 3, and clamp the product mounting plate 4 using the upper base 2 and the lower base 7. Finally, use the locking screw 5 to lock and fix the device.
[0023] The product mounting plate 4, upper base 2, lower base 7, and locking screw ring 5 all adopt a circular structure, which not only facilitates machining and reduces economic investment, but also reduces the overall size of the device and facilitates actual operation.
[0024] The lower base 7 and the locking screw 5 are provided with knurled markings, which can effectively reduce the slippage of the locking screw 5 during locking.
[0025] In this embodiment, the test card slot 3 is detachably mounted on the product mounting plate 4. Therefore, the test card slot 3 can be replaced according to different products under test. This utility model can replace the test card slot according to different feedthrough capacitors and feedthrough filters, which greatly improves the efficiency of use. In addition, the circular product mounting plate can also improve the replacement efficiency.
[0026] The upper base 2, product mounting plate 4, lower base 7, locking screw 5, signal input plug 1 and signal output plug 8 are all made of brass, which can provide good electronic shielding for the product under test and reduce measurement errors caused by electromagnetic leakage.
[0027] The upper base 2, product mounting plate 4, and lower base 7 are equipped with slots for routing the flexible connection cable 6. During testing, the signal input plug 1 is electrically connected to the product under test via the flexible connection cable 6. The test signal is output through the signal output plug 8 to complete the testing process. The flexible connection cable 6 ensures stable signal output and avoids signal distortion caused by the electromagnetic shielding of the brass components.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A feedthrough filter parameter testing device, characterized in that, The device includes an upper base, a test slot, a product mounting plate, a locking screw, a flexible connecting cable, and a lower base. The product mounting plate is placed between the upper and lower bases and secured by the locking screw. The test slot is detachably mounted on the product mounting plate. The upper base, product mounting plate, and lower base each have a slot for installing a flexible connecting cable. The upper base, product mounting plate, lower base, and locking screw are all made of brass.
2. The feedthrough filter parameter testing device according to claim 1, characterized in that, The upper base, product mounting plate, lower base, and locking screws all adopt a circular structure.
3. The feedthrough filter parameter testing device according to claim 1, characterized in that, The lower base and the locking screw have knurled markings on their surfaces.
4. The feedthrough filter parameter testing device according to claim 1, characterized in that, A signal input plug is installed at the top of the upper base.
5. The feedthrough filter parameter testing device according to claim 4, characterized in that, A signal output plug is provided at the bottom of the lower base.
6. The feedthrough filter parameter testing device according to claim 5, characterized in that, Both the signal input plug and the signal output plug are made of brass.
7. The feedthrough filter parameter testing device according to claim 6, characterized in that, The signal input plug is connected to the signal output plug via a flexible connecting cable.
8. The feedthrough filter parameter testing device according to claim 7, characterized in that, The flexible connecting cable is made of pure silver.