One-core connector with glass sintering

Abstract

The utility model relates to the technical field of connectors, and provides a one-core connector with glass sintering, the one-core connector comprises a contact pin and pawl springs, the contact pin is provided with a blind hole along the axial direction, the number of the pawl springs is at least one, each pawl spring comprises a fixing part with an annular structure, after the contact pin is subjected to glass sintering, the pawl springs extend into the blind holes, and the fixing parts are fixed on the blind holes. The pawl spring and the pin are fixed through a fixing part. Therefore, the contact pin and the male pin can be stably connected, signal stability and good contact are ensured, and the service life is prolonged.

Description

Technical Field

[0001] The present application relates to the field of connectors, and in particular to a single-core connector with glass sintering. Background Art

[0002] Reference Figure 1 The core structure of a small-sized single-core connector with glass sintering (small size refers to the female pin 1 with a diameter of 1.2-1.5mm and the male pin 1 with a head diameter of 0.5-0.8mm) includes sintered glass as an insulating and sealing medium, a precisely machined pin 1, and a connector housing. This type of connector achieves electrical connection and mechanical fixation through a series of sophisticated process steps: first, the pin 1 needs to be precisely grooved to provide a guide during insertion; then, the head of the pin 1 will undergo a flattening and shrinking process to enhance the contact stability with the corresponding pin 1 and prevent loosening. During this process, the pin 1 and the connector housing are precisely positioned through a mold, and then the glass is sintered at high temperature (the temperature can be as high as hundreds or even thousands of degrees Celsius) to form an insulating and integrated structure between the pin 1 and the housing, ensuring electrical performance and airtightness.

[0003] In the prior art, since glass sintering requires high temperature, high temperature can easily cause the design of the pin 1 to lose its elasticity, which may cause the pin 1 to open due to improper insertion during subsequent use, or be unable to reset due to plastic deformation, seriously damaging the contact performance; and, after the pin 1 is slotted, line contact rather than ideal full contact may occur when it is inserted into the male pin, which not only increases the contact resistance, but may also cause poor contact and shaking due to slight movement, accelerate the wear of the gold-plated layer, and affect the service life of the connector.

[0004] Therefore, the present application studies a single-core connector with glass sintering, so that the connection between the pin 1 and the male pin is stable, ensuring stable signal and good contact, and improving service life. Utility Model Content

[0005] In order to ensure stable connection between the pin and the male pin, ensure stable signal and good contact, and improve service life, the present application provides a single-core connector with glass sintering.

[0006] This application provides a single-core connector with glass sintering, which adopts the following technical solution:

[0007] A single-core connector with glass sintering includes a pin and a claw spring. The pin is provided with a blind hole along the axial direction. At least one claw spring is provided. Each claw spring includes a fixing portion with an annular structure. After the pin is glass sintered, the claw spring extends into the blind hole, and the claw spring and the pin are fixed by the fixing portion.

[0008] By adopting the above technical solution, the blind hole can stably fix the claw spring, and the stability and reliability of the claw spring can be guaranteed through the interference fit between the fixing part and the pin. The claw spring can be installed after the glass is sintered to avoid the high temperature effect of glass sintering and ensure elasticity and contact reliability. Therefore, after the male pin is inserted into the pin, the connection between the pin and the male pin can be guaranteed to be stable, the signal is guaranteed to be stable, the contact is good, and the service life is improved.

[0009] Optionally, the fixing portion and the pin are interference fit and fixed by welding.

[0010] Optionally, the interference fit between the fixing portion and the pin is 0.02 mm.

[0011] Optionally, the fixing portion and the pin are clearance-fitted and fixed by welding.

[0012] Optionally, the diameter of the fixing portion is larger than the diameter of the male needle head.

[0013] Optionally, the fixing portion extends along one side to form a guide portion, and the diameter gradually decreases toward the side away from the fixing portion, and the inner side of the guide portion is arranged in an arc structure.

[0014] By adopting the above technical solution, the guide portion can play a guiding role in the insertion of the male needle, so that the male needle can be inserted more smoothly.

[0015] Optionally, the guide portion extends along a side away from the fixing portion to form an inserting portion, and a diameter of the inserting portion is smaller than a diameter of the male needle head.

[0016] By adopting the above technical solution, the plug-in portion can hold the male pin tightly and form surface contact with the male pin, thereby increasing the contact area with the male pin and better ensuring the connection reliability between the male pin and the plug-in pin.

[0017] Optionally, the plug-in portion extends outward from a side of the guide portion and is arranged in an arc structure to form an arc portion.

[0018] By adopting the above technical solution, the arc portion can prevent the male pin from scratching the pin plating when withdrawing, thereby better protecting the pin.

[0019] Optionally, the claw spring is provided with N deformation grooves along the circumferential side from the guide portion to the arc portion.

[0020] By adopting the above technical solution, after the male needle is inserted into the claw spring, the deformation groove can adaptively produce elastic deformation and fit tightly to hold the male needle head, ensuring reliable contact.

[0021] Optionally, N is an even number.

[0022] By adopting the above technical solution, when the claw spring holds the male needle, the male needle can be symmetrically stressed, the stress on the male needle can be more uniform, and the reliability is enhanced.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The blind hole can stably fix the claw spring. The interference fit between the fixing part and the pin can ensure the stability and reliability of the claw spring. The claw spring can be installed after the glass is sintered to avoid the high temperature of glass sintering and ensure elasticity and contact reliability. Therefore, after the male pin is inserted into the pin, it can ensure a stable connection between the pins, ensuring stable signal, good contact, and extending service life.

[0025] 2. The guide part can guide the insertion of the male needle, making it easier to insert the male needle;

[0026] 3. The plug-in part can hold the male pin tightly and form surface contact with the male pin, increasing the contact area with the male pin and better ensuring the connection reliability between the male pin and the plug-in pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the background technology of this application;

[0028] Figure 2 1 is a cross-sectional schematic diagram of a single-core connector with glass sintering according to an embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of the structure of the claw spring in a single-core connector with glass sintering according to an embodiment of the present application;

[0030] Figure 4 The structure of another embodiment of the claw spring in the one-core connector with glass sintering in the embodiment of the present application is a schematic diagram;

[0031] Figure 5 This is a structural diagram of another embodiment of a claw spring in a single-core connector with glass sintering according to an embodiment of the present application;

[0032] Figure 6 This is a schematic structural diagram of the prior art claw spring slot of this application;

[0033] Figure 7 It is a structural diagram of the claw spring slot in the prior art of this application.

[0034] Figure numerals: 1. pin; 2. claw spring; 21. first claw spring; 22. second claw spring; 3. fixing portion; 4. blind hole; 5. guide portion; 6. plug-in portion; 7. arc portion; 8. deformation groove. DETAILED DESCRIPTION

[0035] The following is combined with Figure 2-3 This application is described in further detail.

[0036] The embodiment of the present application discloses a one-core connector with glass sintering. Figure 2 The single-core connector with glass frit includes a pin 1 and a claw spring 2. The pin 1 has a blind hole 4 defined along its axial direction, and at least one claw spring 2 is provided. In this embodiment, two claw springs 2 are provided: a first claw spring 21 and a second claw spring 22. Each claw spring 2 includes a fixed portion 3 with a circumferentially closed circular structure. After the pin 1 is glass-fritted, the claw springs 2 extend into the blind hole 4. In this embodiment, the first claw spring 21 extends into the blind hole 4, creating an interference fit between the fixed portion 3 and the pin 1. The second claw spring 22 extends into the blind hole 4, with the side of the second claw spring 22 facing away from the fixed portion 3 extending into the fixed portion 3 of the first claw spring 21, thereby securely connecting the second claw spring 22 to the pin 1.

[0037] The blind hole 4 can stably fix the claw spring 2, and the stability and reliability of the claw spring 2 can be ensured through the interference fit between the fixing part 3 and the pin 1; part of the second claw spring 22 extends into the first claw spring 21, which not only increases the connection strength between the claw spring 2 and the pin 1, but also improves the overall stability of the connector. At the same time, since the second claw spring 22 partially extends into the fixing part 3 of the first claw spring 21, a nested connection method is formed, which further enhances the reliability of the connection; therefore, after the male pin is inserted into the pin 1, it can ensure that the connection between the pin 1 and the male pin is stable, ensure signal stability, good contact, and improve service life; the claw spring 2 can be installed after the glass is sintered to avoid the high temperature effect of glass sintering and ensure elasticity and contact reliability.

[0038] Furthermore, the existing technology requires extremely high precision for the process of slotting and flattening the pin 1. After the pin is flattened and shrunken, the material can easily rebound and deviate from the intended shape, placing extremely high demands on processing accuracy. This embodiment eliminates the need for slotting the pin 1, reduces process requirements, reduces production costs, and ensures product quality.

[0039] In some embodiments, the fixing portion 3 and the pin 1 are interference fit and fixed by welding.

[0040] In some embodiments, the interference fit between the fixing portion 3 and the pin 1 is 0.02 mm. Compared with the prior art, where the claw spring 2 is slotted in a C-shaped structure, the fixing portion 3 of this embodiment is a closed annular structure, which can achieve an interference fit with the pin 1 and better ensure the reliability of the structure.

[0041] In other embodiments, the fixing portion 3 and the pin 1 are clearance-fitted and fixed by welding.

[0042] In this embodiment, the first claw spring 21 is fixedly connected to the plug pin 1 by laser spot welding, so that the stability of the claw spring 2 is better guaranteed during the insertion of the male pin, and the claw spring 2 is prevented from being separated from the plug pin 1, ensuring 100% conduction after being plugged into the male pin.

[0043] In some embodiments, the diameter of the fixing portion 3 is larger than the diameter of the male needle head, and the male needle tail abuts against the fixing portion 3. This makes it easier to insert the male needle and ensures the stability of the male needle.

[0044] Reference Figure 3 In some embodiments, the fixing portion 3 extends along one side to form a guide portion 5, whose diameter gradually decreases away from the fixing portion 3, and the inner side of the guide portion 5 is configured as an arc structure. This serves as a guide for the male needle when inserting the claw spring 2, enabling smoother insertion and better avoiding bumps, thereby protecting the claw spring 2 and the male needle.

[0045] In some embodiments, the guide portion 5 extends along a side facing away from the fixing portion 3 to form a plug portion 6. The plug portion 6 is annular, with inner and outer diameters corresponding to the smallest inner and outer diameters of the guide portion 5. The diameter of the plug portion 6 is smaller than the diameter of the male pin head, allowing the male pin to form an interference fit with the plug portion 6 after insertion, ensuring a reliable and stable connection and better ensuring signal connection.

[0046] In some embodiments, the plug portion 6 extends outward from the side of the guide portion 5 and is arranged in an arc structure, forming an arc portion 7. The outward extension means that the diameter gradually increases. The arc portion 7 prevents the male needle from colliding with the pin 1 during insertion or removal, better protecting the pin 1 and extending its service life.

[0047] In some embodiments, the claw spring 2 is provided with N deformation grooves 8 along the circumference of the guide portion 5 to the arc portion 7. After the male needle is inserted into the claw spring 2, the deformation groove 8 can adaptively produce elastic deformation and fit tightly to the male needle head, ensuring reliable contact.

[0048] In some embodiments, N is an even number. In this embodiment, N is 6, that is, 6 deformation grooves 8 are provided, so that when the claw spring 2 holds the male pin tightly, the force on the circumference is more uniform, and the contact area between the claw spring 2 and the male pin is ensured, making the connection stable and reliable, and ensuring the connection signal.

[0049] Reference Figure 4 In another embodiment, the claw spring 2 can only be provided with a plug-in portion 6 on one side of the fixed portion 3. The plug-in portion 6 can be extended along one side of the fixed portion 3 and gradually reduce in diameter, and be formed by axially spaced grooves. The minimum inner diameter of the plug-in portion 6 is smaller than the outer diameter of the male needle.

[0050] Reference Figure 5In another embodiment, the claw spring 2 may be provided with fixing portions 3 at both ends, and the portion between the fixing portions 3 at both ends may be concave.

[0051] Reference Figure 6 and Figure 7 In the prior art, the cross-section of the claw spring 2 after being grooved is a "C"-shaped structure. This structure is prone to deformation when it is interference-fitted with the pin, thereby reducing the holding force of the interference fit and resulting in poor positioning during the insertion process. The fixing portion 3 of the claw spring 2 of the present application is annularly arranged, which can stably fit and fix the pin.

[0052] The implementation principle of a single-core connector with glass sintering in the embodiment of the present application is as follows: the blind hole 4 can stably fix the claw spring 2, and the stability and reliability of the claw spring 2 can be ensured through the interference fit between the fixing part 3 and the pin 1. The claw spring 2 can be installed after the glass is sintered to avoid the high temperature effect of glass sintering and ensure elasticity and contact reliability. Therefore, after the male pin is inserted into the pin 1, the connection between the pin 1 and the male pin can be guaranteed to be stable, the signal is guaranteed to be stable, the contact is good, and the service life is improved.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A single-core connector with glass frit, characterized in that: It includes a pin and a claw spring. The pin is provided with a blind hole along the axial direction. At least one claw spring is provided. Each claw spring includes a fixing portion with an annular structure. After the pin is glass-sintered, the claw spring extends into the blind hole. The claw spring and the pin are fixed by the fixing portion.

2. A single-core connector with glass frit according to claim 1, characterized in that: The fixing portion and the inserting pin are interference-fitted and fixed by welding.

3. A single-core connector with glass frit according to claim 2, characterized in that: The interference fit between the fixing portion and the pin is 0.02 mm.

4. The one-core connector with glass frit according to claim 1, characterized in that: The fixing portion and the inserting pin are fitted with each other through clearance and are fixed by welding.

5. The one-core connector with glass frit according to claim 1, characterized in that: The diameter of the fixing portion is greater than the diameter of the male needle head.

6. The one-core connector with glass frit according to claim 1, characterized in that: The fixing portion extends along one side to form a guide portion, and the diameter gradually decreases toward the side away from the fixing portion, and the inner side of the guide portion is arranged in an arc structure.

7. The one-core connector with glass frit according to claim 6, characterized in that: The guide portion extends along a side away from the fixing portion to form an inserting portion, and the diameter of the inserting portion is smaller than the diameter of the male needle head.

8. The one-core connector with glass frit according to claim 7, characterized in that: The inserting portion extends outwardly from a side of the guide portion and is arranged in an arc structure to form an arc portion.

9. The one-core connector with glass frit according to claim 8, characterized in that: The claw spring is provided with N deformation grooves along the circumference of the guide portion to the arc portion.

10. The one-core connector with glass frit according to claim 9, characterized in that: N is an even number.

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