Small connector for connecting antenna and TR

Abstract

The utility model discloses a small-sized connector for connecting an antenna and a TR. A glass sintering assembly is formed by sintering a pin, glass powder and a shell at high temperature; the contact head is in press fit in a stepped hole of the shell of the glass sintering assembly, the insulator is in press fit in an inner hole of the contact head, the ejector pin, the hair button and the contact pin are sequentially located in the inner hole of the insulator from left to right, the contact head is arranged on the outer wall of the contact head in a sleeving mode, and the spring is located in a closed cavity formed by the shell, the contact head and the contact head. According to the utility model, the shell is welded at the TR end to realize reliable connection with the TR end, and then the ejector pin and the contact are respectively and elastically contacted with the conductive discs of the inner conductor and the outer conductor of the antenna end printed board, so that poor contact caused by tolerance accumulation is avoided; according to the utility model, the antenna and the TR are connected through one connector, so that the connection height is greatly reduced, and miniaturization of the antenna and TR products is realized.

Description

Technical Field

[0001] The utility model relates to a small connector for connecting an antenna and a TR, belonging to the field of connectors. Background Art

[0002] Currently, multi-way connections between antennas and TRs generally utilize a three-piece design. This involves installing an SMP series (or the smaller SSMP or WMP series) male receptacle, which allows for a certain degree of axial and radial misalignment, on either side of the antenna and TR, with a dual-female adapter in between. This solution effectively absorbs dimensional deviations using the dual-female adapter in the middle, resolving issues such as skewed connector pins, split sockets, and breakage caused by radial misalignment due to machining accuracy and tolerances between the antenna and TR integrated housings and the RF connector. However, this solution requires the use of two connectors and an adapter, and the presence of the mating area significantly limits the overall height reduction of the antenna and TR, hindering the trend toward smaller antenna and TR products. Against this backdrop, there is an urgent need for a compact connector that can reliably connect to the antenna while avoiding radial misalignment caused by machining accuracy and maintaining a reliable connection to the antenna. Utility Model Content

[0003] The purpose of the present invention is to provide a small connector for connecting an antenna and a TR, so as to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A small connector for connecting an antenna and a TR, comprising a glass sintered assembly, a contact head, a thimble, an elastic button, an insulator, a spring, and a contact. The glass sintered assembly is formed by sintering a pin, glass powder, and a shell at high temperature. The contact head is press-fit into a stepped hole in the shell of the glass sintered assembly, the insulator is press-fit into the inner hole of the contact head, the thimble, button, and pin are positioned in the inner hole of the insulator from left to right, the contact is sleeved on the outer wall of the contact head, and the spring is located in a closed cavity formed by the shell, contact head, and contact.

[0006] The inner hole of the insulator is stepped, which is adapted to the stepped shaft-shaped outer diameter of the ejector and is used to limit the ejector; the inner hole of the insulator is respectively matched with the outer diameter of the elastic part button and the outer diameter of the ejector, so as to compress the elastic part button to move leftward when the ejector end face is subjected to force.

[0007] The contact head is provided with a small tapered protrusion along the inner hole. The metal protrusion extends into the insulator with relatively soft material hardness to fix the insulator. The stepped shaft-shaped outer diameter of the left end of the contact head is adapted to the stepped inner hole of the contact and is used to limit the contact. The contact head is provided with multiple elastic petals along the axial direction from the left end face, and the outer diameter of the elastic petal is in elastic contact with the inner hole of the contact.

[0008] The outer diameter of the contact is in clearance with the inner hole of the housing. When the end face of the contact is subjected to force, the compression spring moves leftward along the outer wall of the contact.

[0009] The outer circle of the left end of the shell is in the shape of a stepped shaft, which is used for limiting the position during welding. The entire length of the outer circle of the left end of the shell and about half of the length of the middle outer circle are sunk into the welding hole of the TR end, and the left end face of the shell is flush with the left end face of the TR end.

[0010] The left end face of the contact extends out of the left end face of the shell for a certain distance, and the left end face of the ejector pin extends out of the left end face of the contact for a certain distance. When the left end faces of the contact and the ejector pin are subjected to a certain contact pressure, they are used to compress the spring and the elastic button in contact with them until they are flush with the left end face of the shell. The left end faces of the ejector pin and the contact are in elastic contact with the inner conductor conductive disc and the outer conductor conductive disc of the antenna end printed circuit board respectively.

[0011] Compared with the prior art, the present invention has the following beneficial effects: the present invention realizes a reliable connection with the TR end by welding the shell to the TR end, and then elastically contacts the conductive discs of the inner and outer conductors of the antenna end printed circuit board respectively through the ejector pins and contacts, thereby avoiding poor contact caused by tolerance accumulation; the present invention changes the original connection method of the TR end and the antenna end through a three-piece set (two connectors and an adapter) to a connection through a single connector, which greatly reduces the connection height and realizes the miniaturization of the antenna and TR products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the welding of the utility model and the TR end;

[0014] Figure 3 This is a schematic diagram of the conductive disc of the antenna end printed circuit board of the utility model;

[0015] Figure 4 It is a schematic diagram of the connection between the TR end and the antenna end of the utility model.

[0016] In the figure: 1-glass sintered assembly; 2-contact head; 3-thimble; 4-elastic button; 5-insulator; 6-spring; 7-contact; 101-pin; 102-glass powder; 103-housing; A-TR end; A1-soldering; B-antenna end; B1-inner conductor conductive disk; B2-outer conductor conductive disk. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely explained below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] A small connector for connecting an antenna to a transmitter (TR), characterized by comprising a glass frit assembly 1, a contact head 2, a thimble 3, an elastic button 4, an insulator 5, a spring 6, and a contact 7. The glass frit assembly 1 is formed by sintering a pin 101, glass powder 102, and a housing 103 at high temperature. The contact head 2 is press-fit into a stepped hole in the housing 103 of the glass frit assembly 1. The insulator 5 is press-fit into the inner hole of the contact head 2. The thimble 3, button 4, and pin 101 are positioned in the inner hole of the insulator from left to right. The contact 7 is sleeved on the outer wall of the contact head 2. The spring 6 is located in a closed cavity formed by the housing 103, the contact head 2, and the contact 7.

[0019] The inner hole of the insulator 5 is stepped, which is adapted to the stepped shaft-shaped outer diameter of the ejector pin 3 and is used to limit the ejector pin 3; the inner hole of the insulator 5 is respectively matched with the outer diameter of the elastic part hair button 4 and the outer diameter of the ejector pin 3, so that the end face of the ejector pin 3 is subjected to force to compress the elastic part hair button 4 to move to the left.

[0020] The contact head 2 is provided with a small tapered protrusion along the inner hole. The metal protrusion extends into the insulator 5 with relatively soft material hardness to fix the insulator 5. The stepped shaft-shaped outer diameter at the left end of the contact head 2 is adapted to the stepped inner hole of the contact 7 and is used to limit the contact 7; the contact head 2 is provided with multiple elastic petals along the axial direction from the left end face, and the outer diameter of the elastic petal is in elastic contact with the inner hole of the contact 7.

[0021] The outer diameter of the contact 7 is in clearance with the inner hole of the housing 103 . When the end face of the contact 7 is subjected to force, the compression spring 6 moves leftward along the outer wall of the contact head 2 .

[0022] The outer circle of the left end of the shell 103 is in the shape of a stepped shaft, which is used for limiting the position during welding. The entire length of the outer circle of the left end of the shell 103 and about half of the length of the middle outer circle are sunk into the welding hole of the TR end, and the left end face of the shell 103 is flush with the left end face of the TR end A.

[0023] The left end face of the contact 7 extends a certain distance from the left end face of the housing 103, and the left end face of the ejector pin 3 extends a certain distance from the left end face of the contact 7. Under a certain contact pressure, the left end faces of the contact 7 and the ejector pin 3 respectively compress the spring 6 and the elastic button 4 in contact with them until they are flush with the left end face of the housing 103. The left end faces of the ejector pin 3 and the contact 7 respectively elastically contact the inner conductor conductive disk B1 and the outer conductor conductive disk B2 of the antenna end B printed circuit board.

[0024] When the product is in use, first solder A1 into the welding hole of TR end A. After welding, the left end face of the shell 103 is flush with the left end face of the TR end, and the ejector pin 3 and the contact 7 extend out of the left end face of TR end A respectively, and the extension distance of the ejector pin 3 is greater than the extension distance of the contact 7. Then connect the antenna end B with the TR end A. At this time, the ejector pin 3 first elastically contacts the inner conductor conductive disk of the antenna end B. The ejector pin 3 is subjected to force and the elastic button 4 is compressed to move to the right. As the antenna board B and the ejector pin 3 move, when the ejector pin 3 is flush with the left end face of the contact 7, the left end face of the contact 7 elastically contacts the outer conductor conductive disk of the antenna end B. At this time, the ejector pin 3 and the contact 7 are subjected to force at the same time, respectively compressing the elastic button 4 and the spring 6 until the right end face of the antenna board B is completely fitted with the left end face of the TR board A. At this time, the locking mechanism provided on the antenna board B and the TR board A is used to lock the two, and the connection between the antenna board B and the TR board A is completed. This new design utilizes ejector pins 3 and contacts 7 to elastically contact the inner and outer conductive discs B1 and B2 of the antenna's printed circuit board, respectively, eliminating contact problems caused by tolerance buildup. This design replaces the traditional three-piece connection between the TR and antenna (two connectors and one adapter) with a single connector, significantly reducing connection height and miniaturizing both the antenna and TR.

[0025] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, based on the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, replacements and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A small connector for connecting an antenna and a TR, characterized in that: It includes a glass sintered assembly, a contact head, a thimble, an elastic button, an insulator, a spring and a contact. The glass sintered assembly is formed by sintering a pin, glass powder and a shell at high temperature. The contact head is press-fitted into the stepped hole of the shell of the glass sintered assembly, and the insulator is press-fitted into the inner hole of the contact head. The thimble, button and pin are positioned in the inner hole of the insulator from left to right in sequence. The contact is sleeved on the outer wall of the contact head, and the spring is located in a closed cavity formed by the shell, the contact head and the contact.

2. A small connector for connecting an antenna and a TR as claimed in claim 1, characterized in that: The inner hole of the insulator is stepped, which is adapted to the stepped shaft-shaped outer diameter of the ejector and is used to limit the ejector; the inner hole of the insulator is respectively matched with the outer diameter of the elastic part button and the outer diameter of the ejector, so as to compress the elastic part button to move leftward when the ejector end face is subjected to force.

3. A small connector for connecting an antenna and a TR as claimed in claim 1, characterized in that: The contact head is provided with a small tapered protrusion along the inner hole. The metal protrusion extends into the insulator with relatively soft material hardness to fix the insulator. The stepped shaft-shaped outer diameter of the left end of the contact head is adapted to the stepped inner hole of the contact and is used to limit the contact. The contact head is provided with multiple elastic petals along the axial direction from the left end face, and the outer diameter of the elastic petal is in elastic contact with the inner hole of the contact.

4. A small connector for connecting an antenna and a TR as claimed in claim 1, characterized in that: The outer diameter of the contact is in clearance with the inner hole of the housing. When the end face of the contact is subjected to force, the compression spring moves leftward along the outer wall of the contact.

5. A small connector for connecting an antenna and a TR as claimed in claim 1, characterized in that: The outer circle of the left end of the shell is in the shape of a stepped shaft, which is used for limiting the position during welding. The entire length of the outer circle of the left end of the shell and about half of the length of the middle outer circle are sunk into the welding hole of the TR end, and the left end face of the shell is flush with the left end face of the TR end.

6. A small connector for connecting an antenna and a TR as claimed in claim 1, characterized in that: The left end face of the contact extends out of the left end face of the shell for a certain distance, and the left end face of the ejector pin extends out of the left end face of the contact for a certain distance. When the left end faces of the contact and the ejector pin are subjected to a certain contact pressure, they are used to compress the spring and the elastic button in contact with them until they are flush with the left end face of the shell. The left end faces of the ejector pin and the contact are in elastic contact with the inner conductor conductive disc and the outer conductor conductive disc of the antenna end printed circuit board respectively.

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