A radio frequency assembly cleaning fixture

CN224657628UActive Publication Date: 2026-08-21SIPAT CO LTD
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Patent Information

Application Number
CN202522097366.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-21
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

然而,高可靠性要求的应用场景要求射频组件上的助焊剂被彻底清洗去除,而应用于这类场景的射频组件一般体积尺寸相对紧凑,且往往采用射频引针作为输入输出端口,自动喷淋清洗剂的夹具设计难度较大,实际生产中多采用手工刷洗方式去除助焊剂多余物,不利于批量化生产作业

Benefits of technology

[0009] The cleaning fixture provided by this invention features a double-layer clamping and fixing structure. The fixture is designed to conform to the shape of the RF component's housing, creating a recessed groove structure for precise positioning and fixation. The design of the recessed groove structure also takes into account the avoidance of lead pins. The base and cover plate are secured with screws to prevent product movement during cleaning. Furthermore, the perforated design of this invention avoids the welding edges of the RF component's housing and printed circuit board, ensuring that the spray water jets thoroughly clean the weld areas of the printed circuit board and housing, guaranteeing effective cleaning.

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Abstract

The present application relates to the field of radio frequency assembly manufacturing, in particular to a radio frequency assembly cleaning clamp, which comprises a rectangular base and a rectangular cover plate; a plurality of sink structures are arranged on the rectangular base, and the middle part of each sink structure is hollowed out; a first cable tie perforation is arranged around the rectangular base, and a first threaded hole is arranged at each corner of the rectangular base; a plurality of hollow structures are arranged on the rectangular cover plate, and the positions of the hollow structures correspond to the positions of the sink structures; a second cable tie perforation is arranged around the rectangular cover plate, each second cable tie perforation and the first cable tie perforation opposite to it form a cable tie hole pair; a second threaded hole is arranged at each corner of the rectangular cover plate, and each second threaded hole and the first threaded hole opposite to it form a threaded hole pair; the rectangular cover plate covers the rectangular base, a screw is used to fasten and fix each threaded hole pair, and a cable tie is used to fix each cable tie hole pair; the present application improves the cleaning efficiency and reduces the manufacturing cost of the clamp.
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Description

Technical Field

[0001] This invention relates to the field of radio frequency component manufacturing, and more specifically to a radio frequency component cleaning fixture. Background Technology

[0002] With the rapid development of communication technology, the application range of radio frequency (RF) components is becoming increasingly wide. Among them, metal-packaged RF components, due to their good structural stability and environmental tolerance, are widely used in high-reliability applications such as radar, navigation, and electronic countermeasures. However, high-reliability applications require the complete removal of flux from RF components. RF components used in these applications are generally relatively compact in size and often use RF pins as input / output ports. The design of fixtures for automatic spray cleaning agents is quite difficult, and in actual production, manual brushing is often used to remove excess flux, which is not conducive to mass production.

[0003] Currently, some cleaning fixtures for this type of RF component exist in actual production processes. However, their use often results in issues such as product shielding, pin damage, or complex designs leading to high manufacturing costs. Furthermore, since manual brushing to remove flux is insufficient to meet production efficiency requirements, some workers use cable ties to bundle the products inside the equipment's spray chamber for cleaning. However, the cable ties themselves are highly arbitrary, leading to problems such as incomplete cleaning and shell damage during production, resulting in poor standardization of the production process. Summary of the Invention

[0004] To address the above problems, the present invention provides a radio frequency component cleaning fixture, comprising:

[0005] A rectangular base is provided with multiple recessed groove structures, each recessed groove structure having a hollowed-out center; the rectangular base has first cable tie through holes around its perimeter, and each of the four corners of the rectangular base has a first threaded hole.

[0006] A rectangular cover plate, the same size as the rectangular base; the rectangular cover plate has multiple hollow structures, the positions of which correspond to the positions of the groove structures; the rectangular cover plate has second cable tie holes around its perimeter, each second cable tie hole forming a pair with its corresponding first cable tie hole; the four corners of the rectangular cover plate each have a second threaded hole, each second threaded hole forming a pair with its corresponding first threaded hole.

[0007] A rectangular cover plate is placed on a rectangular base. Each pair of screw holes is secured with a screw, and each pair of cable ties is secured with cable ties.

[0008] The beneficial effects of this invention are:

[0009] The cleaning fixture provided by this invention features a double-layer clamping and fixing structure. The fixture is designed to conform to the shape of the RF component's housing, creating a recessed groove structure for precise positioning and fixation. The design of the recessed groove structure also takes into account the avoidance of lead pins. The base and cover plate are secured with screws to prevent product movement during cleaning. Furthermore, the perforated design of this invention avoids the welding edges of the RF component's housing and printed circuit board, ensuring that the spray water jets thoroughly clean the weld areas of the printed circuit board and housing, guaranteeing effective cleaning.

[0010] The cleaning fixture provided by this invention is simple to clamp and fix, and can operate multiple radio frequency components at the same time, which improves cleaning efficiency, reduces the manufacturing cost of the fixture, and avoids damage to the housing and pins of the radio frequency components during the cleaning process. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the cleaning fixture of the present invention;

[0012] Figure 2 This is a structural diagram of the rectangular base of the present invention;

[0013] Among them, 1-rectangular base, 2-rectangular cover plate, 11-sinking structure, 12-first tie, 13-edge sinking step. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] This invention provides a cleaning fixture for radio frequency components, such as... Figure 1 , Figure 2 As shown, it includes:

[0016] A rectangular base 1 is provided with multiple recessed groove structures 11, each recessed groove structure 11 having a hollowed-out center; the rectangular base 1 has first cable tie through holes 12 around its perimeter, and each of the four corners of the rectangular base 1 has a first threaded hole.

[0017] A rectangular cover plate 2, the same size as the rectangular base 1; the rectangular cover plate 2 has multiple hollow structures, the positions of which correspond to the positions of the recessed groove structure 11; the rectangular cover plate 2 has second cable tie holes around its perimeter, each second cable tie hole forming a pair with its corresponding first cable tie hole 12; the four corners of the rectangular cover plate 2 each have a second threaded hole, each second threaded hole forming a pair with its corresponding first threaded hole.

[0018] A rectangular cover plate 2 covers the rectangular base 1. Each pair of screw holes is fixed with a screw, and each pair of zip holes can be fixed to the cleaning fixture with a cable tie to prevent the fixture from shaking during cleaning.

[0019] Specifically, the rectangular base is made of polytetrafluoroethylene (PTFE). The size of the rectangular base should be smaller than the size of the cleaning machine's spray nozzles; therefore, a size of 60×60cm is recommended. The thickness of the rectangular base should be sufficient to avoid the wing-shaped pins of the RF components, and it should be sturdy and not deformed.

[0020] Specifically, a recessed tank structure is designed according to the housing shape of the RF component, with a tank depth of 3-8mm. To avoid obstructing the spray water jet from scouring the RF component and affecting the cleaning effect, the center of each recessed tank structure is hollowed out. In this embodiment of the invention, multiple recessed tank structures on a rectangular base are arranged in an array. The edge recessed step 13 of the recessed tank structure located at the edge of the array is longer than the edge recessed step 13 of the recessed tank structure located in the middle of the array, and the edge recessed step 13 of the recessed tank structure located at the edge of the array extends outward along the edge of the rectangular base.

[0021] Specifically, the sinkhole structures on the rectangular base are distributed in an array.

[0022] Specifically, the rectangular cover is made of polytetrafluoroethylene (PTFE). Corresponding to the cutouts on the rectangular base, a corresponding cutout structure is created on the rectangular cover, forming a sandwich structure to fix the RF components together with the rectangular base.

[0023] Specifically, if the product is symmetrical, the rectangular base and the rectangular cover can be set to the same shape for interlocking installation. For example, the product can be placed in the recessed structure of the rectangular base, and another identical rectangular base can be used as the rectangular cover. The other rectangular base is aligned with the cover, and then the screws at the four corners are tightened before it can be placed into the inner cavity of an automatic spray cleaning machine for flux cleaning.

[0024] Specifically, the screws used are wing screws with a thread diameter of M4 to M6.

[0025] The cleaning fixture provided by this invention enables flux cleaning of RF components with pin housings using an automatic spray cleaning machine. It features a simple structural design and low manufacturing cost. Operation is convenient, eliminating the need for repeated and extensive bolt tightening, saving manpower and improving cleaning efficiency. Multiple products can be cleaned simultaneously, enhancing cleaning efficiency. Furthermore, it reduces damage to the product housing and pins during the cleaning process, improving the reliability of the product manufacturing process.

[0026] When using this device, place the product into the recessed structure of the rectangular base, align it with the rectangular cover plate, and then tighten the screws at the four corners before placing it into the automatic spray cleaning machine cavity for flux cleaning. If necessary, cable ties can be used to secure the clamps entirely within the cleaning machine cavity to prevent movement of the clamps during cleaning, which could affect the cleaning effect.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "rotation," 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. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cleaning fixture for radio frequency components, characterized in that, include: A rectangular base is provided with multiple recessed groove structures, each recessed groove structure having a hollowed-out center; the rectangular base has first cable tie through holes around its perimeter, and each of the four corners of the rectangular base has a first threaded hole. A rectangular cover plate, the same size as the rectangular base; the rectangular cover plate has multiple hollow structures, the positions of which correspond to the positions of the groove structures; the rectangular cover plate has second cable tie holes around its perimeter, each second cable tie hole forming a pair with its corresponding first cable tie hole; the four corners of the rectangular cover plate each have a second threaded hole, each second threaded hole forming a pair with its corresponding first threaded hole. A rectangular cover plate covers the rectangular base. Each pair of screw holes is secured with a screw, and each pair of cable ties is secured with cable ties.

2. The RF component cleaning fixture according to claim 1, characterized in that, Both the rectangular base and the rectangular cover are made of polytetrafluoroethylene.

3. The RF component cleaning fixture according to claim 1, characterized in that, Both the rectangular base and the rectangular cover plate are 60×60cm in size.

4. The RF component cleaning fixture according to claim 1, characterized in that, The screws used are wing screws with a thread diameter of M4 to M6.

5. The RF component cleaning fixture according to claim 1, characterized in that, The depth of the settling tank structure is 3~8mm.