Radio frequency testing head adopting palladium alloy needle head

Abstract

The utility model discloses a radio frequency testing head adopting a palladium alloy needle head, which relates to the field of palladium alloy needle heads and comprises a central conductor, a central conductor needle head, an outer conductor contact head and a radio frequency testing head inner conductor insulating support A. The outer wall of the central conductor is sleeved with an insulating support connected with a radio frequency testing head outer conductor. The outer wall of the radio frequency test head outer conductor is sleeved with an insulating support connected with the mounting flange, one end of the central conductor needle head is provided with a central conductor needle tail, the tail end of the central conductor needle tail is sleeved with a central conductor spring, one end of the central conductor spring is provided with a central conductor needle tube, and the other end of the central conductor needle tube is provided with a central conductor pin. The central conductor needle tube adopts the structure that the front end is opened and closed, so that the electroplating quality of an inner hole of the needle tube can be effectively improved, and meanwhile, the closed design can ensure that the needle tail always keeps stable contact when working in the needle tube.

Description

Technical Field

[0001] The utility model relates to the field of palladium alloy needles, in particular to a radio frequency test head using the palladium alloy needle. Background Art

[0002] In the field of RF testing, the needles of the central conductors of RF test heads are mostly made of beryllium copper, and gold plating must be used on the surface to reduce contact resistance and improve test accuracy and life.

[0003] However, the quality of current spring steel and beryllium copper materials is uneven. After turning, the surface gold plating process will cause changes in product size, and it is impossible to ensure high-precision matching of the center conductor and other parts, which easily leads to certain individual differences in products. In addition, due to the physical properties of gold, the surface hardness of electroplated gold is relatively low, and the lifespan is relatively short in certain specific products.

[0004] Therefore, those skilled in the art provide a radio frequency test head using a palladium alloy needle to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to provide a radio frequency test head using a palladium alloy needle to solve the problem raised in the above-mentioned background art, that is, the quality of current spring steel and beryllium copper materials is uneven, and the surface gold plating process after turning will cause product dimensions to change, and it is impossible to ensure high-precision matching of the center conductor and other parts, which is likely to cause certain individual differences in products. In addition, due to the physical properties of gold, the surface hardness of electroplated gold is relatively low, and in certain specific products, the service life is shortened.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A radio frequency test head using a palladium alloy needle head includes a center conductor, a center conductor needle head, an outer conductor contact head and an inner conductor insulating support A of the radio frequency test head. The outer wall of the center conductor is sleeved with an insulating support connected to the outer conductor of the radio frequency test head. The outer wall of the outer conductor of the radio frequency test head is sleeved with an insulating support connected to the mounting flange. One end of the center conductor needle head is provided with a center conductor needle tail. The tail end of the center conductor needle tail is sleeved with a center conductor spring. One end of the center conductor spring is provided with a center conductor needle tube. The outer wall of the center conductor needle tube is sleeved with the inner conductor insulating support A and the inner conductor insulating support B of the radio frequency test head. The outer wall of the inner conductor insulating support A of the radio frequency test head is sleeved with the outer conductor insulating support of the radio frequency test head. The outer wall of the outer conductor contact head is sleeved with an outer conductor shell. The outer wall of the outer conductor shell is sleeved with an outer conductor spring. The outer wall of the outer conductor spring is sleeved with an outer conductor end block.

[0008] As a preferred embodiment of the present invention: the central conductor includes a central conductor needle head, a central conductor needle tail, a central conductor spring and a central conductor needle tube.

[0009] As a preferred embodiment of the present invention: the outer conductor of the radio frequency test head includes an outer conductor contact head, an outer conductor housing, an outer conductor spring and an outer conductor end block.

[0010] As a preferred embodiment of the present invention: the insulating support includes an RF test head inner conductor insulating support A, an RF test head outer conductor insulating support and an RF test head inner conductor insulating support B.

[0011] As a preferred embodiment of the present invention: the RF test head inner conductor insulation support A is located at the end of the central conductor needle tube away from the central conductor needle tip, and the RF test head inner conductor insulation support B is close to the end of the central conductor needle tube away from the central conductor needle tip.

[0012] As a preferred embodiment of the present invention: a tail cavity is provided in the central conductor needle tube, and the central conductor needle tail and the central conductor spring are both located in the tail cavity of the central conductor needle tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This utility model discloses a radio frequency test head using a palladium alloy needle. The center conductor needle is formed by direct turning using palladium alloy. This reduces dimensional changes caused by electroplating, improves product pass rate, enhances the surface hardness of the needle contact portion, and increases lifespan. This improves assembly precision, reduces processing or process requirements for mating parts, and reduces costs. By leveraging the advantages of palladium alloy needles, the needle tail and needle barrel structure are optimized, thereby improving the quality of the needle barrel electroplating and ensuring more stable contact between the needle tail and the needle barrel. The center conductor needle tip is optimized from the original gold-plated beryllium copper material to a palladium alloy direct turning method. The needle tail is optimized from a beveled structure to a stepped structure. Combining the needle head and tail structures, the center conductor needle barrel is optimized to a grooved and closed front end. Direct turning eliminates the intermediate electroplating step, effectively ensuring component precision and consistency, keeping it within extremely tight tolerances, and improving assembly precision and product consistency. The palladium alloy needle tip has a higher surface hardness than gold-plated surfaces, effectively extending the product's lifespan. The optimized stepped structure of the needle tail ensures the stability of the center conductor spring within the needle tube, improving product stability. The center conductor needle tube adopts an open front and closed end structure, which effectively improves the electroplating quality of the needle tube inner hole. The closed end design also ensures that the needle tail maintains stable contact during operation within the needle tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a radio frequency test head using a palladium alloy needle;

[0017] Figure 2 A schematic diagram of the overall internal structure of a radio frequency test head using a palladium alloy needle;

[0018] Figure 3 A schematic diagram of the internal structure of a central conductor in a radio frequency test head using a palladium alloy needle;

[0019] Figure 4 The present invention is a three-dimensional structural schematic diagram of a center conductor needle head and a center conductor needle tail in a radio frequency test head using a palladium alloy needle head.

[0020] Figure 5 The figure is a three-dimensional structural diagram of a central conductor needle tube in a radio frequency test head using a palladium alloy needle.

[0021] Figure 6 This is a schematic diagram of the partially enlarged structure of the interior of a central conductor needle tube in a radio frequency test head using a palladium alloy needle.

[0022] In the figure: 1. Center conductor; 101. Center conductor needle tip; 102. Center conductor needle tail; 103. Center conductor spring; 104. Center conductor needle tube; 2. RF test head outer conductor; 201. Outer conductor contact head; 202. Outer conductor housing; 203. Outer conductor spring; 204. Outer conductor end block; 3. Insulation support; 301. Insulation support A for the inner conductor of the RF test head; 302. Insulation support for the outer conductor of the RF test head; 303. Insulation support B for the inner conductor of the RF test head. DETAILED DESCRIPTION

[0023] See also Figure 1-6In an embodiment of the utility model, a radio frequency test head using a palladium alloy needle includes a center conductor 1, a center conductor needle 101, an outer conductor contact head 201 and a radio frequency test head inner conductor insulating support A301. The outer wall of the center conductor 1 is sleeved with the radio frequency test head outer conductor 2, and the outer wall of the radio frequency test head outer conductor 2 is sleeved with the insulating support 3. The needle of the center conductor is directly turned into shape using palladium alloy, which reduces the dimensional change of the needle caused by electroplating, improves the product pass rate, strengthens the surface hardness of the needle contact part, and improves the service life. Improve assembly accuracy, reduce processing or process requirements for mating parts, and reduce costs. One end of the center conductor needle head 101 is provided with a center conductor needle tail 102, and the tail end of the center conductor needle tail 102 is sleeved with a center conductor spring 103. One end of the center conductor spring 103 is provided with a center conductor needle tube 104, and the outer wall of the center conductor needle tube 104 is sleeved with the RF test head inner conductor insulation support A301 and the RF test head inner conductor insulation support B303. Combining the advantages of the palladium alloy needle head, the needle tail and needle tube structure is optimized, thereby improving the needle tube electroplating quality and making the contact between the needle tail and the needle tube more stable. The center conductor needle head is optimized from the original beryllium copper material gold plating method to direct turning forming of palladium alloy material, and the needle tail is optimized from a bevel structure to a step structure. Combining the structure of the needle head and needle tail, the needle tube part of the center conductor is optimized to a structure with a front end slot and a closed end. Direct turning and forming, eliminating the intermediate electroplating link, can effectively ensure the accuracy and consistency of parts, and control them within an extremely small tolerance range, thereby improving assembly accuracy and product consistency. The outer wall of the RF test head inner conductor insulation support A301 is sleeved with the RF test head outer conductor insulation support 302, the outer wall of the outer conductor contact head 201 is sleeved with the outer conductor shell 202, the outer wall of the outer conductor shell 202 is sleeved with the outer conductor spring 203, and the outer wall of the outer conductor spring 203 is sleeved with the outer conductor mounting flange 204.

[0024] See also Figure 1 、 Figure 3 and Figure 6The center conductor 1 includes a center conductor needle 101, a center conductor needle tail 102, a center conductor spring 103, and a center conductor needle tube 104. During use, the outer wall of the center conductor 1 is directly installed with the RF test head outer conductor 2, and then the outer wall of the RF test head outer conductor 2 can be sleeved with the insulating support 3. The center conductor needle tail 102 can be installed on one end of the center conductor needle 101, and then the outer wall of the center conductor needle tail 102 is sleeved with the center conductor spring 103. The center conductor spring 103 and the center conductor needle tail 102 are then installed in the center conductor needle tube 104. The outer wall of the outer conductor contact head 201 is then sleeved with the outer conductor spring 203. Then, the RF test head inner conductor insulating support A 301, the RF test head outer conductor insulating support 302, and the RF test head inner conductor insulating support B 303 can effectively provide conductor insulation support. The RF test head outer conductor 2 includes an outer conductor contact head 201, an outer conductor shell 202, an outer conductor spring 203, and an outer conductor end block 204. The insulating support 3 includes an RF test head inner conductor insulating support A301, an RF test head outer conductor insulating support 302, and an RF test head inner conductor insulating support B303. The needle tip is made of palladium alloy, which has a higher surface hardness than a gold-plated surface, effectively extending the product's service life. The needle tail is optimized into a stepped structure to ensure the stability of the center conductor spring within the needle tube, while also improving the stability of the product. The center conductor needle tube adopts a front-end open and closed structure, which effectively improves the electroplating quality of the needle tube's inner hole; at the same time, the closed design ensures that the needle tail always maintains stable contact when working within the needle tube. The RF test head inner conductor insulating support A301 is located at the end of the center conductor needle tube 104 away from the center conductor needle tip 101, and the RF test head inner conductor insulating support B303 is located near the end of the center conductor needle tube 104 away from the center conductor needle tip 101. A tail cavity is provided within the center conductor needle tube 104, and the center conductor needle tail 102 and center conductor spring 103 are both located within the tail cavity of the center conductor needle tube 104.

[0025] It should be noted that the present invention is a radio frequency test head using a palladium alloy needle, including 1. a center conductor; 101. a center conductor needle head; 102. a center conductor needle tail; 103. a center conductor spring; 104. a center conductor needle tube; 2. an outer conductor of the radio frequency test head; 201. an outer conductor contact head; 202. an outer conductor shell; 203. an outer conductor spring; 204. a mounting flange; 3. an insulating support; 301. an insulating support A for the inner conductor of the radio frequency test head; 302. an insulating support for the outer conductor of the radio frequency test head; 303. an insulating support B for the inner conductor of the radio frequency test head. All components are universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0026] The working principle of this utility model is to use palladium alloy to directly turn the needle tip of the center conductor into shape, thereby reducing the dimensional changes caused by electroplating on the needle tip, improving the product's straight-through rate, and strengthening the surface hardness of the needle tip contact portion, thereby increasing its service life. This improves assembly precision, reduces the processing or process requirements for mating parts, and reduces costs. By combining the advantages of palladium alloy needles, the needle tail and needle tube structure are optimized, thereby improving the needle tube electroplating quality and making the contact between the needle tail and needle tube more stable. The center conductor needle tip is optimized from the original gold-plated beryllium copper material to direct turning of palladium alloy material. The needle tail is optimized from a bevel structure to a stepped structure. Combining the needle tip and needle tail structures, the needle tube portion of the center conductor is optimized to have a front-end slotted and closed structure. Direct turning and forming, eliminating the intermediate electroplating link, can effectively ensure the accuracy and consistency of parts, and control them within an extremely small tolerance range, thereby improving assembly accuracy and product consistency. When in use, the outer wall of the center conductor 1 is directly installed with the RF test head outer conductor 2, and then the outer wall of the RF test head outer conductor 2 can be sleeved with the insulating support 3, and one end of the center conductor needle 101 can be installed with the center conductor needle tail 102, and then the outer wall of the center conductor needle tail 102 is sleeved with the center conductor spring 103, and then the center conductor spring 103 and the center conductor needle tail 102 are installed in the center conductor needle tube 104, and then the outer wall of the outer conductor contact head 201 is sleeved with the outer conductor spring 203, and then the RF test head inner conductor insulating support A301, the RF test head outer conductor insulating support 302 and the RF test head inner conductor insulating support B303 can effectively play the role of conductor insulation support. The needle made of palladium alloy material has a higher surface hardness than the gold-plated surface hardness, which can effectively improve the service life of the product. The optimized stepped structure of the needle tail ensures the stability of the center conductor spring within the needle tube, improving product stability. The center conductor needle tube adopts an open front and closed end structure, which effectively improves the electroplating quality of the needle tube inner hole. The closed end design also ensures that the needle tail maintains stable contact during operation within the needle tube.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A radio frequency test head using a palladium alloy needle, comprising a center conductor (1), a center conductor needle (101), an outer conductor contact head (201) and a radio frequency test head inner conductor insulating support A (301), characterized in that: The outer wall of the central conductor (1) is sleeved with an RF test head outer conductor (2), the outer wall of the RF test head outer conductor (2) is sleeved with an insulating support (3), one end of the central conductor needle head (101) is provided with a central conductor needle tail (102), the tail end of the central conductor needle tail (102) is sleeved with a central conductor spring (103), one end of the central conductor spring (103) is provided with a central conductor needle tube (104), the outer wall of the central conductor needle tube (104) is sleeved with an RF test head inner conductor insulating support A (301) and an RF test head inner conductor insulating support B (303), the outer wall of the RF test head inner conductor insulating support A (301) is sleeved with an RF test head outer conductor insulating support (302), the outer wall of the outer conductor contact head (201) is sleeved with an outer conductor housing (202), the outer wall of the outer conductor housing (202) is sleeved with an outer conductor spring (203), and the outer wall of the outer conductor spring (203) is sleeved with an outer conductor end block (204).

2. The radio frequency test head using a palladium alloy needle according to claim 1, characterized in that: The central conductor (1) comprises a central conductor needle head (101), a central conductor needle tail (102), a central conductor spring (103) and a central conductor needle tube (104).

3. The radio frequency test head using a palladium alloy needle according to claim 1, characterized in that: The radio frequency test head outer conductor (2) comprises an outer conductor contact head (201), an outer conductor housing (202), an outer conductor spring (203) and an outer conductor end block (204).

4. The radio frequency test head using a palladium alloy needle according to claim 1, characterized in that: The insulating support (3) comprises a radio frequency test head inner conductor insulating support A (301), a radio frequency test head outer conductor insulating support (302), and a radio frequency test head inner conductor insulating support B (303).

5. The radio frequency test head using a palladium alloy needle according to claim 1, characterized in that: The radio frequency test head inner conductor insulation support A (301) is located at an end of the central conductor needle tube (104) away from the central conductor needle head (101), and the radio frequency test head inner conductor insulation support B (303) is close to an end of the central conductor needle tube (104) away from the central conductor needle head (101).

6. The radio frequency test head using a palladium alloy needle according to claim 1, characterized in that: A tail cavity is provided in the central conductor needle tube (104), and the central conductor needle tail (102) and the central conductor spring (103) are both located in the tail cavity of the central conductor needle tube (104).

Images