Sealed connector of multi-core pin

Abstract

The utility model discloses a sealed connector of a multi-core pin. The sealed connector comprises a main body unit, a glass sealing unit and a signal transmission unit, the main body unit is provided with the corresponding number of assembly holes according to the number of the signal transmission units, so that the main body metal between the holes can bear higher stress; the signal transmission unit is assembled in the corresponding assembly hole and is sealed in the inner cavity of the main body unit through the glass sealing unit, and the glass sealing unit avoids the edge part of the main body wall with concentrated stress, so that the hidden danger of sealing failure caused by the stress of the main body when the sealing connector is used is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sealed connectors, in particular to a sealed connector with multi-core pins. Background Art

[0002] At present, most sealed connectors are manufactured by integral injection molding or integral glass sealing for signal or power transmission of electronic devices that require airtight or watertight performance.

[0003] The injection-molded body or the glass body is used for electrical insulation and providing sealing performance. The 1 - N leads (terminal posts) fixed in the body are used for providing electrical signal conduction. However, the injection-molded body is generally only used for watertightness. The gas barrier property of resin or rubber is poor, and the temperature tolerance range is narrow. In practice, in high-temperature environments and hazardous gas atmospheres, a glass-sealed body is generally used. The advantage of glass sealing is good airtightness and a wide temperature tolerance range.

[0004] Common glass sealing methods usually sinter the integral glass powder cake pins with the body. Although this method reduces the process difficulty and manufacturing cost, there are significant defects in actual applications. Specifically, when the body sealed with integral glass is fixed to the device, welding or riveting is usually used. However, these fixing methods will exert a certain pressure or force on the body during the manufacturing process. For example, the force of riveting deformation or the pressure applied by pressure welding. These pressures are extremely likely to cause slight deformation of the body.

[0005] When the above deformation affects the interface of the glass and the body sealing, the tensile strength of the glass material is much lower than its compressive strength. Therefore, the extrusion deformation of the body will cause the sealing surface to lose its original sealing strength, and may even cause cracks or breakage of the glass, reducing the airtight performance of the device. Summary of the Utility Model

[0006] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the application of the present application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0007] Therefore, to solve the above technical problems, the utility model provides the following technical solution: A sealed connector with multi-core pins, comprising a main body unit, a glass sealing unit, and a signal transmission unit;

[0008] On the main body unit, a corresponding number of assembly holes are provided according to the number of signal transmission units. The signal transmission units are assembled into the corresponding assembly holes and sealed in the inner cavity of the main body unit through a glass sealing unit. The glass sealing unit avoids the edge part of the main body wall where stress concentration occurs, reducing the risk of airtight failure.

[0009] As a preferred solution of the sealed connector of the multi-core pin of the present utility model, wherein: the main body unit is made of metal material.

[0010] As a preferred solution of the sealed connector of the multi-core pin of the present utility model, wherein: the signal transmission unit includes a plurality of connection posts, and the connection posts are arranged in a circular array in the inner cavity of the main body unit.

[0011] As a preferred solution of the sealed connector of the multi-core pin of the present utility model, wherein: the connection posts are made of glass-sealed alloy material.

[0012] Advantages of the present utility model:

[0013] A sealed connector of a multi-core pin proposed by the present utility model processes a corresponding number of small holes on the main body according to the number of leads, so that the main body metal between the holes can bear higher forces, and the glass sealing avoids the edge part of the main body wall where stress concentration occurs, thereby further reducing the hidden danger of sealing failure caused by the force on the main body during the use of the sealed connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 is a schematic diagram of the distribution structure of the assembly holes of the present utility model.

[0017] Figure 3 is a top view of the present utility model.

[0018] Figure 4 is a schematic cross-sectional structure diagram of the present utility model.

[0019] In the figure: 100, main body unit; 101, assembly hole;

[0020] 200, glass sealing unit;

[0021] 300, signal transmission unit;

[0022] 400, Sealing material. Detailed implementation manners

[0023] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings of the specification.

[0024] In the following description, many specific details are set forth to facilitate a thorough understanding of the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive of other embodiments.

[0026] Thirdly, the present utility model is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0027] Referring to Figures 1 to 4 , for an embodiment of the present utility model, there is provided a sealed connector for multi-core pins, including a main body unit 100, a glass sealing unit 200, and a signal transmission unit 300;

[0028] On the main body unit 100, a corresponding number of assembly holes 101 are provided according to the number of the signal transmission units 300. The signal transmission units 300 are assembled into the corresponding assembly holes 101 and are sealed in the inner cavity of the main body unit 100 through the glass sealing unit 200. The glass sealing unit 200 avoids the edge part of the main body wall where stress concentration occurs, reducing the risk of airtight failure.

[0029] One side of the main body unit 100 can be vertically cut and processed with a limiting horizontal plane. When the main body unit 100 is embedded in the corresponding installation hole position, the horizontal plane helps the main body unit 100 to be accurately installed and positioned, preventing it from moving or rotating in the installation hole position. The limiting horizontal plane can also provide an additional supporting area, increasing the stability and firmness during installation, reducing the surface pressure around the installation hole position, and thus reducing the risk of stress concentration.

[0030] The main body unit 100 is made of metal. The main body unit 100 is provided with a corresponding number of assembly holes 101 according to the number of signal transmission units 300. The signal transmission unit 300 includes a plurality of terminal posts, and the terminal posts are arranged in a circular array in the inner cavity of the main body unit 100; the terminal posts are made of glass-sealed alloy material.

[0031] The processing technology of the terminal posts can preferably use hollow glass beads for auxiliary cooperative processing. Specifically, the hollow glass beads are inserted into the assembly holes 101, and the leads of the terminal posts are inserted into the hollow glass beads to form an assembly with the main body unit 100. In a high-temperature environment, the softened glass is used as a sealing material to fill the tiny gaps between the sealing material 400 and the main body unit 100 to form a firm sealed connection; since during processing, the glass sealing unit 200 is avoided from the edge part of the main body wall where stress concentration occurs, the risk of airtight failure is reduced.

[0032] The processing technology of the terminal posts can preferably use glass powder for auxiliary cooperative processing. Specifically, during manufacturing, the terminal posts are inserted into the assembly holes 101, and the glass powder is quantitatively loaded into the gaps between the assembly holes 101 and the terminal posts (using a tooling that can position the leads), and then sent for high-temperature sintering to soften and fix the terminal posts with the glass.

[0033] The processing technology of the terminal posts can also choose to insert the leads with pre-sintered hollow glass beads into the assembly holes 101 and then sinter.

[0034] The manufacturing methods listed above are only multiple manufacturing process examples in this embodiment. In actual application, the specific process selection is made according to the actual situation of device manufacturing to make different manufacturing process selections.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A sealed connector with multiple pins, characterized in that: It comprises a main body unit (100), a glass sealing unit (200) and a signal transmission unit (300); The main body unit (100) is provided with a corresponding number of assembly holes (101) according to the number of signal transmission units (300); the signal transmission units (300) are assembled into the corresponding assembly holes (101) and sealed in the inner cavity of the main body unit (100) via the glass sealing unit (200); the glass sealing unit (200) avoids the edge portion of the main body wall where stress is concentrated, thereby reducing the risk of airtight failure.

2. The sealed connector of multi-core pins according to claim 1, characterized in that: The main body unit (100) is made of metal.

3. The sealed connector of multi-core pins according to claim 1, characterized in that: The signal transmission unit (300) comprises a plurality of terminals, and the terminals are arranged in a circular array in the inner cavity of the main unit (100).

4. The sealed connector of multi-core pins according to claim 3, characterized in that: The terminal is made of glass-sealed alloy.

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