A preassembly for a crimped pin electrical connector

Abstract

The utility model relates to a preassembly of bent pin electric connector for making bent pin electric connector after sintering, the preassembly of bent pin electric connector includes the casing, the glass component in the casing, the lead wire through the glass component, the lead wire is pre-bent lead wire, and one end of lead wire is equipped with pre-grinding section. Compared with prior art, the utility model eliminates the extrusion stress caused by bending and grinding operation to glass sealing component, perfectly guarantees the air tightness of product, and the preformed workpiece ensures the consistency of pin size and shape, significantly improves product yield and production efficiency, and greatly reduces material loss.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a pre-assembly component for a bent-pin electrical connector. Background Technology

[0002] In existing technologies, the manufacturing of bent-pin electrical connectors typically employs a sintering-then-forming process. This involves assembling the straight leads, glass insulator, and metal housing, followed by high-temperature sintering to create a reliable glass seal.

[0003] However, this traditional method has a key technical bottleneck. After the sintering process, the straight lead pins must be cold-bent and ground to create the required flat surface. These subsequent machining steps inevitably subject the already sintered and fragile glass seal interface to compressive stress or vibration impact.

[0004] This processing stress can easily cause cracks at the glass-metal sealing interface, which can seriously damage the connector's most critical airtightness, leaving potential quality problems and resulting in a low yield.

[0005] Therefore, how to eliminate the negative impact of post-sintering machining on the reliability of glass sealing has become a core technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology by providing a pre-assembled part for a bent-pin electrical connector. This eliminates the compressive stress on the glass sealing component caused by bending and grinding operations, perfectly ensuring the airtightness of the product. The pre-formed part ensures the consistency of pin size and shape, significantly improving product yield and production efficiency, and greatly reducing material waste.

[0007] The objective of this utility model can be achieved through the following technical solutions: This utility model provides a pre-assembly for a bent-pin electrical connector, which is used to manufacture a bent-pin electrical connector after sintering. The pre-assembly for the bent-pin electrical connector includes a housing, a glass component disposed in the housing, and a lead wire passing through the glass component. The lead wire is a pre-bent lead wire, and one end of the lead wire is provided with a pre-grinding section.

[0008] Furthermore, the lead wire includes a first straight section, a bent section, a second straight section, and a pre-grinding section connected in sequence.

[0009] Furthermore, the first vertical segment and the second vertical segment are perpendicular to each other.

[0010] Furthermore, the pre-grinding section is coaxial with the second linear section.

[0011] Furthermore, the pre-grinding section is provided with a grinding surface perpendicular to its axial direction.

[0012] Furthermore, the second straight segment is coaxial with the glass component.

[0013] Furthermore, the glass component is a tubular structure, and the outer wall surface of the glass component is in contact with the inner wall surface of the shell.

[0014] Furthermore, the inner wall surface of the glass component is fitted with the second linear segment.

[0015] Furthermore, the length of the pre-grinding section is 1 / 10 to 1 / 5 of the length of the second straight section.

[0016] Furthermore, the casing is made of metal.

[0017] Compared with the prior art, the present invention has the following beneficial effects: By using the pre-assembled component of the bent-pin electrical connector of this utility model, the yield of the sintered product is significantly improved. Specifically, through the pre-bending and pre-grinding lead structure design, compared with completing the bending and grinding of the lead before sintering using the pre-assembled component, the extrusion deformation of the socket and the damage to the glass sealing caused by bending and grinding after sintering in traditional workpieces are effectively avoided. This significantly improves the consistency and reliability of the product, while reducing the scrap rate, increasing production efficiency and yield, and reducing material waste. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of the pre-assembled component of the bent-pin electrical connector of this utility model; Figure 2 This is a top view of the pre-assembled component of the bent-pin electrical connector of this utility model. Figure 3 This is a front view structural diagram of the pre-assembled component of the bent-pin electrical connector in this utility model.

[0019] In the diagram: 1. Shell, 2. Glass component, 3. Lead wire, 31. First straight section, 32. Bending section, 33. Second straight section, 34. Pre-grinding section. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, circuit structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0021] Example 1 The pre-assembly of the bent-pin electrical connector in this embodiment is used to manufacture the bent-pin electrical connector after sintering. The pre-assembly includes a housing 1, a glass component 2 disposed in the housing, and a lead wire 3 passing through the glass component 2. The lead wire 3 is a pre-bent lead wire, and one end of the lead wire 3 is provided with a pre-grinding section 34. See details below. Figures 1 to 3 .

[0022] In specific implementation, the lead wire 3 includes a first straight section 31, a bent section 32, a second straight section 33, and a pre-grinding section 34 connected in sequence. The first straight section 31 and the second straight section 33 are perpendicular to each other. The pre-grinding section 34 is coaxial with the second straight section 33. The second straight section 33 is coaxial with the glass component 2. The length of the pre-grinding section 34 is 1 / 10 to 1 / 5 of the length of the second straight section 33. The pre-grinding section 34 has a grinding surface perpendicular to its axial direction.

[0023] In specific implementation, the glass component 2 is a tubular structure, and the outer wall surface of the glass component 2 is fitted with the inner wall surface of the shell 1. The inner wall surface of the glass component 2 is fitted with the second straight segment 33.

[0024] In practice, the housing 1 is made of metal.

[0025] In the specific preparation of the lead wire 3 in this utility model, the unbent lead wire 3 is placed in a special positioning fixture, then bent, and after bending, it is taken out and placed in another positioning fixture. The tail end 3 of the lead wire is then ground to the preset size. The bent and ground lead wire is inspected, and materials that do not meet the requirements are rejected.

[0026] When assembling the pre-assembled parts of the bent-pin electrical connector of this utility model, the housing 1 and the bent and flattened lead wire 3 are pre-treated, such as by cleaning and drying, and then the housing 1, glass component 2 and lead wire 3 are connected together.

[0027] When using the pre-assembled component of the bent-pin electrical connector in this utility model, the assembled pre-assembled component of the bent-pin electrical connector is inserted into the corresponding graphite positioning mold and placed on the mesh belt of the tunnel sintering furnace for sintering.

[0028] The sintered product is gently removed from the graphite positioning mold. The orientation and dimensions of the inserts all meet the requirements, and the bending consistency is excellent. Furthermore, no grinding or bending is required, ensuring the glass's seal and eliminating potential hazards. The scrap rate is low, while product efficiency and yield are significantly improved, reducing material waste.

[0029] The technical advantage of this pre-assembled component lies in its core pre-formed workpiece, namely the lead wire, which is pre-processed into its final bent shape and end-grinding completed before sintering. This pre-forming at the hardware level allows the subsequent sintering process to achieve only glass sealing without any further machining, thus completely avoiding the extrusion damage to the glass insulator caused by later processes and fundamentally ensuring the sealing reliability of the product. Simultaneously, using the pre-formed workpiece as a foundation ensures the consistency of the geometric dimensions of all leads, significantly improving product yield and production efficiency, and effectively reducing material waste.

[0030] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A pre-assembly for a bent-pin electrical connector, used to manufacture a bent-pin electrical connector after sintering, the pre-assembly comprising a housing (1), a glass component (2) disposed in the housing, and a lead wire (3) penetrating the glass component (2), characterized in that, The lead wire (3) is a pre-bent lead wire, and one end of the lead wire (3) is provided with a pre-grinding section (34).

2. The pre-assembled component of a bent-pin electrical connector according to claim 1, characterized in that, The lead wire (3) includes a first straight section (31), a bent section (32), a second straight section (33), and a pre-grinding section (34) connected in sequence.

3. The pre-assembled component of a bent-pin electrical connector according to claim 2, characterized in that, The first vertical segment (31) and the second vertical segment (33) are perpendicular to each other.

4. The pre-assembled component of a bent-pin electrical connector according to claim 2, characterized in that, The pre-grinding section (34) is coaxial with the second straight section (33).

5. The pre-assembly component of a bent-pin electrical connector according to claim 1, characterized in that, The pre-grinding section (34) has a grinding surface perpendicular to its axial direction.

6. The pre-assembly component of a bent-pin electrical connector according to claim 2, characterized in that, The second straight segment (33) is coaxial with the glass component (2).

7. The pre-assembly component of a bent-pin electrical connector according to claim 2, characterized in that, The glass component (2) is a tubular structure, and the outer wall of the glass component (2) is attached to the inner wall of the shell (1).

8. The pre-assembly component of a bent-pin electrical connector according to claim 7, characterized in that, The inner wall surface of the glass component (2) is in contact with the second straight section (33).

9. The pre-assembly component of a bent-pin electrical connector according to claim 2, characterized in that, The length of the pre-grinding section (34) is 1 / 10 to 1 / 5 of the length of the second straight section (33).

10. A pre-assembled component for a bent-pin electrical connector according to claim 1, characterized in that, The shell (1) is made of metal.

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