Low-frequency anti-interference filter cleaning clamp and filter production equipment

By designing a low-frequency anti-interference filter cleaning fixture, and using filter cavity fixing parts and limiting parts to fix the filter, the comprehensiveness and stability of ultrasonic cleaning are achieved. This solves the problems of missed cleaning and shaking of resonant columns in traditional filter cleaning, and improves the filtering performance.

CN223932135UActive Publication Date: 2026-02-24惠州市数创射频科技有限公司
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Patent Information

Application Number
CN202520122216.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-02-24
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Traditional low-pass filters suffer from problems such as incomplete cleaning of the resonant pillars and severe shaking during cleaning, which affect filtering performance and structural stability.

Method used

A low-frequency anti-interference filter cleaning fixture is used, including filter cavity fixing parts, limiting parts and ultrasonic cleaning needles. The filter is fixed by ultrasonic cleaning and limiting structure to ensure uniform cleaning at all positions and limit shaking.

Benefits of technology

This improves the comprehensiveness and stability of filter cleaning, prevents the resonant pillar structure from falling off and shaking, and enhances filtering performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a low-frequency anti-interference filter cleaning clamp and filter production equipment. The low-frequency anti-interference filter cleaning clamp comprises a bottom plate and a filter cleaning assembly. The bottom plate is provided with a cleaning area, the filter cleaning assembly comprises a filter cavity fixing piece, a filter cavity limiting piece and a filter cavity ultrasonic cleaning needle head, and the filter cavity fixing piece and the filter cavity ultrasonic cleaning needle head are located in the cleaning area; the filtering cavity ultrasonic cleaning needle head is arranged on the bottom plate; the filtering cavity limiting piece is arranged on the edge of the cleaning area. The filtering cavity ultrasonic cleaning needle head cleans the low-frequency anti-interference filter through cleaning liquid in an ultrasonic mode, so that all positions of the low-frequency anti-interference filter can be cleaned, and the filtering cavity limiting piece limits the position of the low-frequency anti-interference filter. The low-frequency anti-interference filter is prevented from shaking in the ultrasonic cleaning process, and the cleaning stability is improved.
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Description

Technical Field

[0001] This disclosure relates to the field of filter technology, and in particular to a cleaning fixture for a low-frequency anti-interference filter and filter manufacturing equipment. Background Technology

[0002] A filter is a filtering circuit composed of a combination of inductors, capacitors, and resistors. Because inductors have the characteristic of passing low frequencies and blocking high frequencies, they can filter out one or more harmonics, thus having the function of filtering noise and separating signals. They are widely used in the transmission field of electronic equipment. LC filters can be classified according to their function as: LC low-pass filters, LC band-pass filters, high-pass filters, LC all-pass filters, and LC band-stop filters. Currently, traditional low-pass filters use a linear structure design. The internal resonant pillar structure determines the out-of-band rejection level. This leads to situations where some areas inside the resonant pillar are missed during filter cleaning, affecting the filter's filtering performance. Furthermore, the filter shakes significantly under water jet washing, easily causing parts of the resonant pillar structure to fall off. Utility Model Content

[0003] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a low-frequency anti-interference filter cleaning fixture and filter production equipment that effectively improves the comprehensiveness and stability of cleaning.

[0004] The purpose of this disclosure is achieved through the following technical solution:

[0005] A low-frequency anti-interference filter cleaning fixture includes: a base plate and a filter cleaning assembly; the base plate has a cleaning area for placing the low-frequency anti-interference filter to be cleaned; the filter cleaning assembly includes a filter cavity fixing member, a filter cavity limiting member, and a filter cavity ultrasonic cleaning needle, the filter cavity fixing member and the filter cavity ultrasonic cleaning needle being located within the cleaning area, the filter cavity fixing member protruding from the base plate and used to connect with the low-frequency anti-interference filter; the filter cavity ultrasonic cleaning needle is disposed on the base plate, with the cleaning end of the filter cavity ultrasonic cleaning needle facing the low-frequency anti-interference filter to perform ultrasonic cleaning on the low-frequency anti-interference filter; the filter cavity limiting member is disposed at the edge of the cleaning area, and the filter cavity limiting member is used to abut against the low-frequency anti-interference filter to confine the low-frequency anti-interference filter within the cleaning area.

[0006] In one embodiment, the filter cavity fixing component includes a plurality of edge fixing pins, which are disposed adjacent to the edge of the cleaning area and correspond to the edge fixing holes of the low-frequency anti-interference filter.

[0007] In one embodiment, the filter cavity fixing component includes a plurality of central fixing pins, which are disposed away from the edge of the cleaning area, and the central fixing pins correspond to the central fixing holes of the low-frequency anti-interference filter.

[0008] In one embodiment, the plurality of central fixing flat pins and the plurality of edge fixing round pins are arranged parallel to each other.

[0009] In one embodiment, the filter cleaning assembly further includes a plurality of support pins disposed within the cleaning area, the support pins being used to support the low-frequency anti-interference filter.

[0010] In one embodiment, the height of the support pin is less than the height of the edge fixing round pin and the height of the middle fixing flat pin.

[0011] In one embodiment, the filter cavity limiting member includes at least two first side limiting plates, the first side limiting plates being located at the edge of the cleaning area, and the at least two first side limiting plates being disposed opposite to each other.

[0012] In one embodiment, the filter cavity limiting member further includes at least two second side limiting plates, the second side limiting plates being located at the edge of the cleaning area, each second side limiting plate being adjacent to and perpendicular to a first side limiting plate.

[0013] In one embodiment, the filter cleaning assembly further includes a pad disposed at the edge of the cleaning area, the pad also abutting against the adjacent first side limiting plate and second side limiting plate respectively.

[0014] A filter manufacturing apparatus includes the low-frequency anti-interference filter cleaning fixture described in any of the above embodiments.

[0015] Compared with the prior art, this disclosure has at least the following advantages:

[0016] After the low-frequency anti-interference filter is placed on the base plate, the filter cavity fixing component fixes the low-frequency anti-interference filter in the cleaning area. The ultrasonic cleaning needle of the filter cavity cleans the low-frequency anti-interference filter with cleaning fluid in an ultrasonic manner, so that all positions of the low-frequency anti-interference filter can be cleaned. The filter cavity limiting component restricts the position of the low-frequency anti-interference filter to avoid shaking of the low-frequency anti-interference filter during ultrasonic cleaning, thereby improving the cleaning stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a low-frequency anti-interference filter cleaning fixture in one embodiment. Detailed Implementation

[0019] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] This disclosure relates to a cleaning fixture for a low-frequency anti-interference filter. In one embodiment, the low-frequency anti-interference filter cleaning fixture includes a base plate and a filter cleaning assembly; the base plate has a cleaning area for placing the low-frequency anti-interference filter to be cleaned; the filter cleaning assembly includes a filter cavity fixing member, a filter cavity limiting member, and a filter cavity ultrasonic cleaning needle, the filter cavity fixing member and the filter cavity ultrasonic cleaning needle being located within the cleaning area, the filter cavity fixing member protruding from the base plate and used for connecting to the low-frequency anti-interference filter; the filter cavity ultrasonic cleaning needle is disposed on the base plate, with the cleaning end of the filter cavity ultrasonic cleaning needle facing the low-frequency anti-interference filter to perform ultrasonic cleaning on the low-frequency anti-interference filter; the filter cavity limiting member is disposed at the edge of the cleaning area, and the filter cavity limiting member is used to abut against the low-frequency anti-interference filter to confine the low-frequency anti-interference filter within the cleaning area. After the low-frequency anti-interference filter is placed on the base plate, the filter cavity fixing component fixes the low-frequency anti-interference filter in the cleaning area. The ultrasonic cleaning needle of the filter cavity cleans the low-frequency anti-interference filter with cleaning fluid in an ultrasonic manner, so that all positions of the low-frequency anti-interference filter can be cleaned. The filter cavity limiting component restricts the position of the low-frequency anti-interference filter to avoid shaking of the low-frequency anti-interference filter during ultrasonic cleaning, thereby improving the cleaning stability.

[0023] Please see Figure 1 This is a schematic diagram of the structure of a low-frequency anti-interference filter cleaning fixture according to an embodiment of the present disclosure.

[0024] A low-frequency anti-interference filter cleaning fixture 10 according to one embodiment includes a base plate 100 and a filter cleaning assembly 200. The base plate 100 has a cleaning area 102 for placing the low-frequency anti-interference filter to be cleaned. The filter cleaning assembly 200 includes a filter cavity fixing member 210, a filter cavity limiting member 220, and a filter cavity ultrasonic cleaning needle 230. The filter cavity fixing member 210 and the filter cavity ultrasonic cleaning needle 230 are located within the cleaning area 102. The filter cavity fixing member 210 protrudes from the base plate 100 and is used to connect to the low-frequency anti-interference filter. The filter cavity ultrasonic cleaning needle 230 is disposed on the base plate 100, with the cleaning end of the filter cavity ultrasonic cleaning needle 230 facing the low-frequency anti-interference filter to perform ultrasonic cleaning on the low-frequency anti-interference filter. The filter cavity limiting member 220 is disposed at the edge of the cleaning area 102. The filter cavity limiting member 220 is used to abut against the low frequency anti-interference filter to limit the low frequency anti-interference filter within the cleaning area 102.

[0025] In this embodiment, after the low-frequency anti-interference filter is placed on the base plate 100, the filter cavity fixing member 210 fixes the low-frequency anti-interference filter in the cleaning area 102. The filter cavity ultrasonic cleaning needle 230 cleans the low-frequency anti-interference filter with cleaning fluid in an ultrasonic manner, so that all positions of the low-frequency anti-interference filter can be cleaned. The filter cavity limiting member 220 restricts the position of the low-frequency anti-interference filter to avoid shaking of the low-frequency anti-interference filter during ultrasonic cleaning, thereby improving cleaning stability.

[0026] In one embodiment, please refer to Figure 1 The filter cavity fixing component 210 includes a plurality of edge fixing pins 212, which are disposed adjacent to the edge of the cleaning area 102 and correspond to the edge fixing holes of the low-frequency anti-interference filter. In this embodiment, the edge fixing pins 212 are located at the edge of the cleaning area 102 and pass through the edge fixing holes of the low-frequency anti-interference filter, thereby connecting the edge fixing pins 212 with the edge of the low-frequency anti-interference filter and fixing the edge of the low-frequency anti-interference filter to reduce the cleaning vibration amplitude of the low-frequency anti-interference filter.

[0027] Furthermore, the filter cavity fixing component 210 includes a plurality of central fixing pins 214, which are disposed away from the edge of the cleaning area 102, and correspond to the central fixing holes of the low-frequency anti-interference filter. In this embodiment, the central fixing pins 214 are located in the center of the cleaning area 102, and pass through the central fixing holes of the low-frequency anti-interference filter, so that the central fixing pins 214 are connected to the center of the low-frequency anti-interference filter, thereby fixing the center of the low-frequency anti-interference filter and further reducing the cleaning vibration amplitude of the low-frequency anti-interference filter.

[0028] In another embodiment, the plurality of central fixing flat pins 214 and the plurality of edge fixing round pins 212 are arranged parallel to each other, so that the fixed position of the low-frequency anti-interference filter remains parallel, thereby making the connection force of the low-frequency anti-interference filter more uniform, and thus improving the cleaning stability of the low-frequency anti-interference filter.

[0029] In one embodiment, please refer to Figure 1The filter cleaning assembly 200 further includes multiple support pins 240, which are disposed within the cleaning area 102 and are used to support the low-frequency anti-interference filter. In this embodiment, the support pins 240 correspond to the cleaning area 102 and are located between the base plate 100 and the low-frequency anti-interference filter. The support pins 240 serve as support components for the low-frequency anti-interference filter during cleaning, allowing the filter to be lifted away from the base plate 100. Specifically, the height of the support pins 240 is less than the height of the edge fixing round pin 212 and the height of the middle fixing flat pin 214, facilitating the flow of cleaning fluid ejected by the ultrasonic cleaning needle 230 of the filter cavity, thereby facilitating a thorough cleaning of the low-frequency anti-interference filter.

[0030] In one embodiment, please refer to Figure 1 The filter cavity limiting member 220 includes at least two first side limiting plates 222. The first side limiting plates 222 are located at the edge of the cleaning area 102, and the at least two first side limiting plates 222 are arranged opposite to each other. In this embodiment, the first side limiting plates 222 are disposed at the edge of the cleaning area 102, and the first side limiting plates 222 correspond to the side of the low-frequency anti-interference filter, that is, the first side limiting plates 222 abut against the side of the low-frequency anti-interference filter. Moreover, the at least two first side limiting plates 222 are located on two opposite sides of the low-frequency anti-interference filter, so that the low-frequency anti-interference filter is clamped by the two first side limiting plates 222 together, thereby improving the stability of the low-frequency anti-interference filter on the base plate 100 and preventing the low-frequency anti-interference filter from shaking during cleaning.

[0031] Furthermore, the filter cavity limiting member 220 also includes at least two second side limiting plates 224. The second side limiting plates 224 are located at the edge of the cleaning area 102, and each second side limiting plate 224 is adjacent to and perpendicular to a first side limiting plate 222. In this embodiment, the second side limiting plates 224 and the first side limiting plates 222 correspond one-to-one, and the second side limiting plates 224 and the first side limiting plates 222 form a vertical angle, which facilitates limiting two adjacent sides of the low-frequency anti-interference filter, thereby facilitating the limiting of the low-frequency anti-interference filter from two vertical directions and further improving the stability of the low-frequency anti-interference filter on the base plate 100.

[0032] Furthermore, the filter cleaning assembly 200 also includes a pad 250, which is disposed at the edge of the cleaning area 102. The pad 250 also abuts against the adjacent first side limiting plate 222 and second side limiting plate 224, respectively. In this embodiment, the pad 250 and the support pin 240 are disposed opposite to each other. The pad 250 and the support pin 240 support the two opposite sides of the low-frequency anti-interference filter, making the support force on the low-frequency anti-interference filter more uniform, thereby making the installation of the low-frequency anti-interference filter on the base plate 100 more stable.

[0033] In one embodiment, this disclosure also relates to a filter manufacturing apparatus, including the low-frequency anti-interference filter cleaning fixture described in any of the above embodiments. In this embodiment, the low-frequency anti-interference filter cleaning fixture includes a base plate and a filter cleaning assembly; the base plate has a cleaning area for placing the low-frequency anti-interference filter to be cleaned; the filter cleaning assembly includes a filter cavity fixing member, a filter cavity limiting member, and a filter cavity ultrasonic cleaning needle, the filter cavity fixing member and the filter cavity ultrasonic cleaning needle being located within the cleaning area; the filter cavity fixing member protrudes from the base plate and is used to connect to the low-frequency anti-interference filter; the filter cavity ultrasonic cleaning needle is disposed on the base plate, with its cleaning end facing the low-frequency anti-interference filter to perform ultrasonic cleaning on the low-frequency anti-interference filter; the filter cavity limiting member is disposed at the edge of the cleaning area and is used to abut against the low-frequency anti-interference filter to confine the low-frequency anti-interference filter within the cleaning area. After the low-frequency anti-interference filter is placed on the base plate, the filter cavity fixing component fixes the low-frequency anti-interference filter in the cleaning area. The ultrasonic cleaning needle of the filter cavity cleans the low-frequency anti-interference filter with cleaning fluid in an ultrasonic manner, so that all positions of the low-frequency anti-interference filter can be cleaned. The filter cavity limiting component restricts the position of the low-frequency anti-interference filter to avoid shaking of the low-frequency anti-interference filter during ultrasonic cleaning, thereby improving the cleaning stability.

[0034] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent disclosure. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent disclosure should be determined by the appended claims.

Claims

1. A cleaning fixture for a low-frequency anti-interference filter, characterized in that, include: A base plate having a cleaning area for placing a low-frequency anti-interference filter to be cleaned; A filter cleaning assembly includes a filter cavity fixing component, a filter cavity limiting component, and a filter cavity ultrasonic cleaning needle. The filter cavity fixing component and the filter cavity ultrasonic cleaning needle are located within a cleaning area. The filter cavity fixing component protrudes from the base plate and is used to connect to the low-frequency anti-interference filter. The filter cavity ultrasonic cleaning needle is disposed on the base plate, with its cleaning end facing the low-frequency anti-interference filter to perform ultrasonic cleaning on the low-frequency anti-interference filter. The filter cavity limiting component is disposed at the edge of the cleaning area and is used to abut against the low-frequency anti-interference filter to confine the low-frequency anti-interference filter within the cleaning area.

2. The low-frequency anti-interference filter cleaning fixture according to claim 1, characterized in that, The filter cavity fixing component includes multiple edge fixing pins, which are arranged adjacent to the edge of the cleaning area, and the edge fixing pins correspond to the edge fixing holes of the low-frequency anti-interference filter.

3. The low-frequency anti-interference filter cleaning fixture according to claim 2, characterized in that, The filter cavity fixing component includes multiple central fixing pins, which are disposed away from the edge of the cleaning area, and the central fixing pins correspond to the central fixing holes of the low-frequency anti-interference filter.

4. The low-frequency anti-interference filter cleaning fixture according to claim 3, characterized in that, The plurality of central fixing flat pins and the plurality of edge fixing round pins are arranged parallel to each other.

5. The low-frequency anti-interference filter cleaning fixture according to claim 3, characterized in that, The filter cleaning assembly also includes a plurality of support pins, which are disposed within the cleaning area and are used to support the low-frequency anti-interference filter.

6. The low-frequency anti-interference filter cleaning fixture according to claim 5, characterized in that, The height of the support pin is less than the height of the edge fixing round pin and the height of the middle fixing flat pin.

7. The low-frequency anti-interference filter cleaning fixture according to claim 1, characterized in that, The filter cavity limiting component includes at least two first side limiting plates, which are located at the edge of the cleaning area and are arranged opposite to each other.

8. The low-frequency anti-interference filter cleaning fixture according to claim 7, characterized in that, The filter cavity limiting component further includes at least two second side limiting plates, which are located at the edge of the cleaning area. Each second side limiting plate is adjacent to and perpendicular to a first side limiting plate.

9. The low-frequency anti-interference filter cleaning fixture according to claim 8, characterized in that, The filter cleaning assembly also includes a pad, which is disposed at the edge of the cleaning area and abuts against the adjacent first side limiting plate and second side limiting plate respectively.

10. A filter manufacturing apparatus, characterized in that, Includes a low-frequency anti-interference filter cleaning fixture as described in any one of claims 1 to 9.