Coaxial connector

Abstract

The utility model relates to a coaxial connector, comprising: an outer housing comprising an installation cavity, a hollow groove connected with the installation cavity, and a groove hole arranged in the installation cavity; the glass bead is sintered and fixed in the mounting cavity; one end of the inner conductor penetrates through the glass bead to be inserted into the hollow groove, and the other end of the inner conductor penetrates out of the outer shell through a groove hole formed in the outer shell; the section of the end, with the smaller maximum diameter, of the outer shell is in a rectangular shape, the rectangle is subjected to rounding treatment, and the inner conductor and a device are positioned through four arc surfaces of the rounding rectangle so as to meet the gold wire bonding requirement of the inner conductor and the device. Compared with the prior art, the gold wire bonding with the device is facilitated, the working efficiency during assembly is improved, and the reject ratio of gold wire bonding is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, in particular to a coaxial connector. Background Art

[0002] Coaxial connectors, also called barrel or tip connectors, are used to top and tail cables and connect devices to external power sources, or to connect cables to each other while maintaining shielding from external interference.

[0003] They are available in a variety of different sizes to accommodate different cable sizes, and each can be used in combination to ensure smooth signal transmission.

[0004] In the prior art, coaxial connectors generally use end face bonding. As product requirements increase, side gold wire bonding is required more and more. Existing coaxial connectors have the problem of difficult alignment in subsequent use. Since the gold wire bonding requires a high degree of parallelism (generally within 3° can meet the requirements), a large deflection angle will cause cold soldering or damage to the porcelain nozzle. As a result, the product yield is not high and the efficiency is extremely low in subsequent use. At the same time, due to the limitation of the installation position size, gold wire bonding cannot be performed and user requirements cannot be met.

[0005] CN219458064U discloses a coaxial connector, including an inner conductor and an outer shell, wherein the outer shell is a hollow metal conductor sleeve, glass beads are filled between the outer shell and the inner conductor, and a stepped socket is provided inside the outer shell. However, the outer shell is cylindrical, which makes alignment difficult during gold wire bonding. Utility Model Content

[0006] The purpose of the utility model is to provide a coaxial connector in order to overcome the defects of the prior art.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] The utility model provides a coaxial connector, comprising:

[0009] The outer shell includes a mounting cavity, a hollow groove connected to the mounting cavity, and a slot hole provided in the mounting cavity;

[0010] glass beads, which are sintered and fixed in the mounting cavity; and

[0011] An inner conductor, one end of which passes through the glass bead and is inserted into the hollow groove, and the other end of which passes through the slot at the beginning of the outer shell and out of the outer shell;

[0012] The cross section of one end of the outer shell with the smaller maximum diameter is rectangular, and the rectangle is chamfered. The four arc surfaces of the chamfered rectangle are positioned with the device to meet the requirements of gold wire bonding between the inner conductor and the device.

[0013] Furthermore, the inner conductor comprises:

[0014] The first section is cylindrical, one end of which passes through the glass bead and is inserted into the hollow groove, and the other end of which passes through the slot at the beginning of the outer shell and out of the outer shell, and the length of the first section is 3.00-3.20 mm; and

[0015] The second section is cylindrical and connected to the first section. The second section is located outside the outer shell and has a length of 0.40-0.60 mm. The second section is bonded to the device by gold wire.

[0016] Furthermore, the outer shell comprises:

[0017] A first shell portion is a hollow rounded rectangular body, the installation cavity is located inside the first shell portion, and the length of the first shell portion is 1.40-1.60 mm; and

[0018] The second shell part is in the shape of a semi-cylinder. The hollow groove is located inside the second shell part. The length of the second shell part is 2.00-2.20 mm.

[0019] Furthermore, the four arcs of the first outer shell portion have the inner conductor as the center, and the central angle corresponding to the arc is 30-60°.

[0020] Furthermore, the depth of the hollow groove is 0.20-0.40 mm.

[0021] Furthermore, the diameter of the hollow groove is 2.95-3.15 mm.

[0022] Furthermore, the diameter of the second outer shell portion is 3.60-3.80 mm.

[0023] Furthermore, the diameter of the first section is 0.28-0.48 mm.

[0024] Furthermore, the diameter of the second section is 0.05-0.25 mm.

[0025] Furthermore, the outer shell is detachably connected to the inner conductor.

[0026] Preferably, the length of the first segment is 3.10 mm.

[0027] Preferably, the second section is located outside the outer shell and has a length of 0.50 mm.

[0028] Preferably, the length of the first shell portion is 1.50 mm.

[0029] Preferably, the length of the second shell portion is 2.10 mm.

[0030] Preferably, the central angle corresponding to the four arcs of the first outer shell portion is 45°.

[0031] Preferably, the depth of the hollow groove is 0.30 mm.

[0032] Preferably, the diameter of the hollow groove is 3.05 mm.

[0033] Preferably, the diameter of the second outer shell portion is 3.70 mm.

[0034] Preferably, the diameter of the first section is 0.38 mm.

[0035] Preferably, the diameter of the second section is 0.15 mm.

[0036] The working principle of the utility model is as follows:

[0037] A coaxial connector, which has a bonding function. In the utility model, the first shell part is set as a rounded rectangular body, and the arc surface formed around it is a positioning surface. In this way, the positioning of the device is completed on these four arc surfaces, which will not affect the installation of other components and the limitation of their installation position. In the utility model, the inner conductor is polished to avoid the loss of signals due to the rough surface. The polished inner conductor is sorted to select the inner conductor with bad surface, and then the inner conductor and the outer shell are processed by a special process, and the processed materials are processed. It is assembled in a special jade mold and sintered at high temperature. At this time, the glass beads are sintered in the installation cavity, and the inner conductor and the outer shell are installed. After sintering, the inner conductor is ground. During grinding, it is positioned by the flat surface of the shell, and then the inner conductor is ground to the required size. In this way, the arc surface of the first outer shell part remains parallel to the second section of the inner conductor after grinding. It should be noted that due to the high parallelism required for gold wire bonding, a large deflection angle will cause cold welding or damage to the porcelain nozzle. Therefore, the four arc surfaces of the first outer shell part in the utility model take the inner conductor as the center.

[0038] Compared with the prior art, the utility model has the following beneficial effects:

[0039] (1) The first shell part provided in the present application facilitates the processing of the user's installation hole. After sintering, the inner conductor is ground. During grinding, it is positioned by the arc surface of the first shell part, and then the inner conductor is ground to the required size. In this way, the arc surface of the first shell part of the outer shell body is almost parallel to the second section of the inner conductor after grinding. At this time, there is no need for careful leveling during subsequent assembly, and the defective rate is almost zero, which greatly improves production efficiency and reduces waste.

[0040] (2) The arc surface of the first shell part provided in the present application forms four positioning surfaces, which does not affect the installation of other components of the user and the restrictions on their installation positions, and fully meets the requirements of gold wire bonding. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a cross-sectional schematic diagram of the coaxial connector in Example 1.

[0042] Figure 2 This is a bottom view of the coaxial connector in Example 1.

[0043] Numbers in the figure:

[0044] 1-outer shell, 101-mounting cavity, 102-hollow groove, 103-slot hole, 104-first outer shell part, 105-second outer shell part, 2-glass bead, 3-inner conductor, 301-first section, 302-second section. DETAILED DESCRIPTION

[0045] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0046] Features such as component models, material names, connection structures, control methods, etc. that are not clearly stated in this technical solution shall be deemed as common technical features disclosed in the prior art.

[0047] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the description of the present invention, "multiple" means two or more than two, unless otherwise specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a bolt connection or a welding connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In order to facilitate the gold wire bonding with the device, improve the work efficiency during assembly, and reduce the defective rate of gold wire bonding, the utility model provides a coaxial connector, the structure of which can be seen in Figure 1 and Figure 2 As shown, including:

[0050] The outer shell 1 comprises a mounting cavity 101, a hollow groove 102 connected to the mounting cavity 101, and a slot 103 provided in the mounting cavity 101;

[0051] Glass beads 2, which are sintered and fixed in the installation cavity 101; and

[0052] An inner conductor 3, one end of which passes through the glass bead 2 and is inserted into the hollow groove 102, and the other end of which passes through the slot 103 at the beginning of the outer shell 1 and is passed out of the outer shell 1;

[0053] The cross section of the end of the outer shell 1 with the smaller maximum diameter is rectangular, and the rectangle is chamfered. The four arc surfaces of the chamfered rectangle are positioned with the device to meet the requirements of gold wire bonding between the inner conductor 3 and the device.

[0054] In some specific implementations, please refer to Figure 1 and Figure 2 As shown, the inner conductor 3 comprises:

[0055] The first section 301 is cylindrical, one end of which passes through the glass bead 2 and is inserted into the hollow groove 102, and the other end of which passes through the slot 103 at the beginning of the outer shell 1 and is out of the outer shell 1. The length of the first section 301 is 3.00-3.20 mm; and

[0056] The second section 302 is in the form of a semi-cylinder, which is connected to the first section 301. The second section 302 is located outside the outer shell 1 and has a length of 0.40-0.60 mm. The second section 302 is wire-bonded to the device.

[0057] In some specific implementations, please refer to Figure 1 and Figure 2As shown, the outer shell 1 includes:

[0058] The first shell portion 104 is a hollow rounded rectangular body, the installation cavity 101 is located inside the first shell portion 104, and the length of the first shell portion 104 is 1.40-1.60 mm; and

[0059] The second shell portion 105 is cylindrical, and the hollow groove 102 is located inside the second shell portion 105 . The length of the second shell portion 105 is 2.00-2.20 mm.

[0060] For more specific implementations, please refer to Figure 1 and Figure 2 As shown, the four arcs of the first shell portion 104 have the inner conductor 3 as the center, and the central angle corresponding to the arc is 30-60°.

[0061] In some specific implementations, please refer to Figure 1 and Figure 2 As shown, the depth of the hollow groove 102 is 0.20-0.40 mm.

[0062] In some specific implementations, please refer to Figure 1 and Figure 2 As shown, the diameter of the hollow groove 102 is 2.95-3.15 mm.

[0063] For more specific implementations, please refer to Figure 1 and Figure 2 As shown, the diameter of the second housing portion 105 is 3.60-3.80 mm.

[0064] For more specific implementations, please refer to Figure 1 and Figure 2 As shown, the diameter of the first section 301 is 0.28-0.48 mm.

[0065] For more specific implementations, please refer to Figure 1 and Figure 2 As shown, the diameter of the second section 302 is 0.05-0.25 mm.

[0066] In some specific implementations, please refer to Figure 1 and Figure 2 As shown, the outer shell 1 is detachably connected to the inner conductor 3 .

[0067] The above embodiments may be implemented individually or in any combination of two or more.

[0068] The above implementation is described in more detail below in conjunction with specific examples.

[0069] Example 1

[0070] In order to facilitate gold wire bonding with devices, improve work efficiency during assembly, and reduce the defective rate of gold wire bonding, this embodiment provides a coaxial connector, the structure of which is shown in FIG. Figure 1 and Figure 2 As shown, including:

[0071] The outer shell 1 includes a mounting cavity 101, a hollow groove 102 connected to the mounting cavity 101, and a slot 103 provided in the mounting cavity 101;

[0072] Glass beads 2, which are sintered and fixed in the mounting cavity 101; and

[0073] The inner conductor 3 has one end inserted into the hollow groove 102 through the glass bead 2, and the other end passes out of the outer shell 1 through the slot 103 at the beginning of the outer shell 1;

[0074] The cross section of the end of the outer shell 1 with the smaller maximum diameter is rectangular, and the rectangle is chamfered. The four arc surfaces of the chamfered rectangle are positioned with the device to meet the requirements of gold wire bonding between the inner conductor 3 and the device.

[0075] Please see again Figure 1 and Figure 2 As shown, the inner conductor 3 comprises:

[0076] The first section 301 is cylindrical, one end of which passes through the glass bead 2 and is inserted into the hollow groove 102, and the other end of which passes through the slot 103 at the beginning of the outer shell 1 and is out of the outer shell 1. The length of the first section 301 is 3.10 mm; and

[0077] The second section 302 is a semi-cylindrical shape, which is connected to the first section 301. The second section 302 is located outside the outer shell 1 and has a length of 0.50 mm. The second section 302 is wire-bonded to the device.

[0078] Please see again Figure 1 and Figure 2 As shown, the outer shell 1 includes:

[0079] The first shell portion 104 is a hollow rounded rectangular body, the mounting cavity 101 is located inside the first shell portion 104, and the length of the first shell portion 104 is 1.50 mm; and

[0080] The second shell portion 105 is cylindrical, and the hollow groove 102 is located inside the second shell portion 105 . The length of the second shell portion 105 is 2.10 mm.

[0081] Please see again Figure 1 and Figure 2As shown, the four arcs of the first shell portion 104 have the inner conductor 3 as the center, and the center angle corresponding to the arc is 45°.

[0082] Please see again Figure 1 and Figure 2 As shown, the depth of the hollow groove 102 is 0.30 mm.

[0083] Please see again Figure 1 and Figure 2 As shown, the diameter of the hollow groove 102 is 3.05 mm.

[0084] Please see again Figure 1 and Figure 2 As shown, the diameter of the second housing portion 105 is 3.70 mm.

[0085] Please see again Figure 1 and Figure 2 As shown, the diameter of the first section 301 is 0.38 mm.

[0086] Please see again Figure 1 and Figure 2 As shown, the diameter of the second section 302 is 0.15 mm.

[0087] Please see again Figure 1 and Figure 2 As shown, the outer housing 1 is detachably connected to the inner conductor 3 .

[0088] The working principle of this embodiment is as follows:

[0089] See also Figure 1 and Figure 2 A coaxial connector having a bonding function. In this embodiment, the first shell portion 104 is set to a rounded rectangular body, and the arc surface formed around it is a positioning surface. In this way, the positioning of the device is completed on these four arc surfaces, which will not affect the installation of other components and the limitation of their installation position. In this embodiment, the inner conductor is polished to avoid signal loss due to surface roughness, and the polished inner conductor is sorted to select the inner conductor with poor surface, and then the inner conductor and the outer shell are processed by a special process, and the processed materials are assembled on a special stone High-temperature sintering is performed in the jade mold. At this time, the glass beads 2 are sintered in the installation cavity 101, and the inner conductor 3 and the outer shell 1 are installed. After sintering, the inner conductor is ground and positioned by the flat surface of the shell during grinding. Then, the inner conductor is ground to the required size, so that the arc surface of the first shell part 104 remains parallel to the second section 302 of the inner conductor 3 after grinding. It should be noted that due to the high parallelism required for gold wire bonding, a large deflection angle will cause cold welding or damage to the porcelain nozzle. Therefore, in this embodiment, the four arc surfaces of the first shell part 104 are centered on the inner conductor.

[0090] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A coaxial connector, characterized in that: include: An outer shell (1) comprising a mounting cavity (101), a hollow groove (102) connected to the mounting cavity (101), and a slot hole (103) provided in the mounting cavity (101); Glass beads (2) are sintered and fixed in the installation cavity (101); and An inner conductor (3), one end of which passes through the glass bead (2) and is inserted into the hollow groove (102), and the other end of which passes through a slot (103) at the beginning of the outer shell (1) and exits the outer shell (1); The cross section of the end of the outer shell (1) with the smaller maximum diameter is rectangular, and the rectangle is rounded. The four arc surfaces of the rounded rectangle are positioned with the device to meet the requirements of gold wire bonding between the inner conductor (3) and the device.

2. A coaxial connector according to claim 1, characterized in that: The inner conductor (3) comprises: The first section (301) is cylindrical, one end of which passes through the glass bead (2) and is inserted into the hollow groove (102), and the other end of which passes through the slot (103) at the beginning of the outer shell (1) and is out of the outer shell (1), and the length of the first section (301) is 3.00-3.20 mm; and The second section (302) is in the form of a semi-cylinder and is connected to the first section (301). The second section (302) is located outside the outer shell (1) and has a length of 0.40-0.60 mm. The second section (302) is gold-wire bonded to the device.

3. A coaxial connector according to claim 1, characterized in that: The outer shell (1) comprises: The first shell part (104) is a hollow rounded rectangular body, the installation cavity (101) is located inside the first shell part (104), and the length of the first shell part (104) is 1.40-1.60 mm; and The second shell part (105) is cylindrical in shape, the hollow groove (102) is located inside the second shell part (105), and the length of the second shell part (105) is 2.00-2.20 mm.

4. A coaxial connector according to claim 3, characterized in that: The four arcs of the first outer shell (104) have the inner conductor (3) as the center, and the center angles corresponding to the arcs are 30-60°.

5. The coaxial connector according to claim 1, characterized in that: The depth of the hollow groove (102) is 0.20-0.40 mm.

6. The coaxial connector according to claim 1, characterized in that: The diameter of the hollow groove (102) is 2.95-3.15 mm.

7. A coaxial connector according to claim 3, characterized in that: The diameter of the second shell part (105) is 3.60-3.80 mm.

8. The coaxial connector according to claim 2, characterized in that: The diameter of the first section (301) is 0.28-0.48 mm.

9. The coaxial connector according to claim 2, characterized in that: The diameter of the second section (302) is 0.05-0.25 mm.

10. The coaxial connector according to claim 1, characterized in that: The outer shell (1) and the inner conductor (3) are detachably connected.

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