High-performance connector assembly

Abstract

The invention relates to the field of connector assemblies, and discloses a high-performance connector assembly which comprises an outer needle tube, a PCB is welded to the outer side of the outer needle tube, a tube cavity is formed in the outer needle tube in the vertical direction, an inner needle tube is arranged in the tube cavity, a needle head is slidably connected to the inner wall of the inner needle tube, and a crown spring is arranged in the tube cavity. A small hole is formed in the lower portion of the inner needle tube, a conductive bead is arranged on the inner side of the inner needle tube, a spring is arranged in the inner needle tube, a limiting ring is arranged on the lower portion of the inner needle tube, a sealing groove is formed in the upper portion of the inner needle tube, a waterproof ring is arranged on the upper portion of a tube cavity, and the sealing groove is clamped with the waterproof ring. According to the high-performance connector assembly, the impact influence of load current can be effectively overcome, the use stability of the high-performance connector assembly is improved, and the high-performance connector assembly is convenient to repair after certain flying or charging times are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of connector components, in particular to a high-performance connector component. Background Art

[0002] The telescopic spring ejector pin is a kind of precision connector widely used in consumer electronic products. It is composed of parts such as a needle, an inner needle tube, a spring, a conductive bead, and an outer needle tube. The surface is nickel-plated and gold-plated to achieve the advantages of low resistance, oxidation resistance, and scratch resistance. Various internal structural designs ensure stable and reliable connection between parts, playing the role of transmitting current and signals.

[0003] At present, the connector components are consumer connector application styles and test spring 8-pin connector application styles. The consumer connector application style is mainly connected to the mainboard after PCB welding and powered on. It will be scrapped after about 3 to 5 years of use within a lifespan of 10,000 times, that is, replaceability is not considered; while the test spring 8-pin connector application style, under the lifespan requirements ranging from 100,000 to 1 million times, generally needs to be replaced every 1 week to 3 months during high-frequency online testing, that is, the old telescopic spring pin is removed from the sleeve and replaced with a new one.

[0004] Since this product is used in unmanned transport aircraft, its main functions are high current and high vibration, and it is necessary to effectively overcome the impact of load current shock. Therefore, it is necessary to improve the stability of the use of high-performance connector components, and it needs to be easy to repair after reaching a certain number of flights or charging times. Therefore, we propose a high-performance connector component. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a high-performance connector assembly to solve the problems mentioned in the above background.

[0006] The present invention provides the following technical solution: The present invention discloses a high-performance connector assembly, comprising an outer needle tube, a PCB board is welded on the outer side of the outer needle tube, a lumen is vertically provided inside the outer needle tube, an inner needle tube is arranged in the lumen, a needle head is slidably connected to the inner wall of the inner needle tube, a crown spring is arranged in the lumen, a small hole is opened at the bottom of the inner needle tube, a conductive bead is arranged on the inner side of the inner needle tube, a spring is arranged in the inner needle tube, and a limiting ring is arranged at the bottom of the inner needle tube.

[0007] As a preferred solution, a sealing groove is provided on the upper part of the inner needle tube, a waterproof ring is provided on the upper part of the tube cavity, and the sealing groove is engaged with the waterproof ring.

[0008] As a preferred embodiment, the needle head comprises a needle rod slidably connected to the inner wall of the inner needle tube, a needle crown is arranged above the needle rod, and a plurality of crown teeth are evenly arranged on the top of the needle crown.

[0009] As a preferred solution, the needle crown and the needle rod are integrally formed, the number of the crown teeth is 9, and the crown teeth are pyramidal.

[0010] As a preferred solution, a butt surface is provided at the lower end of the needle rod, and the butt surface is inclined at an angle of 18° toward the lower left, and the conductive bead is in contact with the butt surface.

[0011] As a preferred solution, one end of the spring is connected to the inner side of the inner needle tube, and the conductive bead is clamped on the upper part of the spring.

[0012] As a preferred solution, the outer side of the middle part of the crown spring is in contact with the tube cavity, and the upper and lower inner walls of the crown spring are in contact with the outer wall of the inner needle tube.

[0013] As a preferred solution, a plurality of reed leaves are evenly arranged in the middle of the crown spring, and the reed leaves are provided with leaf grooves.

[0014] As a preferred solution, the lumen wall of the lumen is a smooth structure.

[0015] As a preferred solution, the surface of the lumen and the inner needle tube is provided with a nickel plating layer, and the surface of the needle tip is provided with a gold plating layer.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention adopts the structural setting of the high-performance connector assembly. Compared with the conventional pogo pin which is connected to the motherboard by welding, the pogo pin of the present invention is changed from hard interference to elastic interference for the first time, which can ensure reliable contact in high-vibration environment applications and share the application requirements of transmitting large currents. The high-performance connector assembly can be used on unmanned transport aircraft as a fast charging interface.

[0018] Through the structural setting of the needle and the design of the crown teeth of the needle into a tooth pyramid style, in addition to being able to effectively puncture the exposed charging PAD on the tarmac, the crown teeth are in contact at the same time to avoid the heating effect caused by current concentration during vibration, greatly improving the service life. The top of the needle adopts a crown design to ensure that dust in outdoor scenes falls into the inner needle tube. Combined with the waterproof ring design between the inner and outer needle tubes, the risk of dust falling in the use scene is avoided from the source.

[0019] One end of the spring is connected to the inner side of the inner needle tube, a conductive bead is clamped on the upper part of the spring, and an abutment surface is provided at the lower end of the needle rod. The conductive bead contacts the abutment surface, and the abutment surface is inclined at an angle of 18° to the lower left. The inclined surface design provides internal lateral force to ensure stable resistance contact, and the outer side of the middle part of the crown spring is in contact with the tube cavity, and the upper and lower inner walls of the crown spring are in contact with the outer wall of the inner needle tube. The contact interface between the inner needle tube and the outer needle tube is changed to an ultra-long elastic crown spring for connection, so that there are more contacts and they can be quickly replaced and updated, and the influence of vibration and large current can be effectively reduced. Through such a structural setting, the conductive circuit of the high-performance connector assembly is increased from one to two, which effectively overcomes the influence of load impact.

[0020] The high-performance connector assembly structure reduces the cost of rework and enables quick updates. A limit ring is provided at the bottom of the inner needle tube to facilitate blind-insertion assembly of the crown spring. Assembly can be performed at any time, greatly reducing the difficulty of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 It is a three-dimensional structural diagram of the lower part of the present invention;

[0023] Figure 3 It is a partial cross-sectional view of the present invention;

[0024] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0025] Figure 5 for Figure 3 The enlarged view of point B in the middle;

[0026] Figure 6 This is a schematic diagram of the structure of the crown spring.

[0027] In the figure: 1. outer needle tube; 2. PCB board; 3. tube cavity; 4. inner needle tube; 5. crown spring; 6. small hole; 7. conductive bead; 8. spring; 9. limit ring; 10. sealing groove; 11. waterproof ring; 12. needle rod; 13. needle crown; 14. crown teeth; 15. abutment surface; 16. sheet groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-6 A high-performance connector assembly of the present embodiment is used as a fast charging interface on an unmanned transport aircraft. Its main functions are to bear high current and high vibration, including an outer needle tube 1. The surface of the outer needle tube 1 is nickel-plated to improve scratch resistance. A PCB board 2 is welded on the outer side of the outer needle tube 1, and the PCB board 2 is welded on the main board. A tube cavity 3 is opened in the vertical direction inside the outer needle tube 1, and an inner needle tube 4 is arranged in the tube cavity 3. A needle head is slidably connected to the inner wall of the inner needle tube 4, and a crown spring 5 is arranged in the tube cavity 3. A small hole 6 is opened at the bottom of the inner needle tube 4. Due to the frequent vibration during use Rate, in order to provide the electroplating quality and thickness of the inner needle tube 4, a small hole is designed at the tail of the inner needle tube 4, which is easy to form a reflux path during vacuum plating during electroplating, and can effectively avoid the difference in plating thickness between the inside and outside. A conductive bead 7 is arranged on the inner side of the inner needle tube 4, and a spring 8 is arranged in the inner needle tube 4. The elastic force of the spring 8 is defined as 200g. A limit ring 9 is arranged at the lower part of the inner needle tube 4, and the limit ring 9 and the inner needle tube 4 are integrally formed. By arranging the limit ring 9 at the lower part of the inner needle tube 4, it is convenient for the user to blindly insert and assemble the crown spring 5, and the assembly can be carried out at any time, which greatly reduces the difficulty of assembly.

[0030] like Figure 3 , 4 As shown, a sealing groove 10 is provided on the upper part of the inner needle tube 4, and a waterproof ring 11 is provided on the upper part of the tube cavity 3. The sealing groove 10 is engaged with the waterproof ring 11. The waterproof ring 11 is made of silicone material. A crown-shaped design is adopted above the needle head to ensure that dust in outdoor scenes falls into the inner needle tube 4. The design of the waterproof ring 11 between the inner needle tube 4 and the outer needle tube 1 can avoid the hidden danger of dust falling in the use scene from the source.

[0031] like Figure 1 As shown, the needle includes a needle rod 12 slidably connected to the inner wall of the inner needle tube 4, a needle crown 13 is arranged above the needle rod 12, and a plurality of crown teeth 14 are evenly arranged on the top of the needle crown 13. Through the design of the crown teeth 14 of the needle, in addition to effectively puncturing the exposed charging PAD on the apron, the crown teeth 14 are in contact at the same time, avoiding the heating effect caused by the current concentration during vibration, and greatly improving the service life.

[0032] like Figure 1 As shown, the needle crown 13 and the needle rod 12 are integrally formed to improve the integrity of the needle structure. The number of crown teeth 14 is 9, and the crown teeth 14 are pyramidal. The crown teeth 14 of the needle are designed to be 9-tooth pyramidal. In addition to being able to effectively puncture the exposed charging PAD on the apron, the crown teeth 14 are in contact at the same time to avoid the heating effect caused by current concentration during vibration, thereby greatly improving the service life.

[0033] like Figure 3 , 4As shown, a butt surface 15 is provided at the lower end of the needle rod 12, and the conductive bead 7 contacts the butt surface 15. The butt surface 15 is inclined, and the angle of inclination of the butt surface 15 to the lower left is 18°. The inclined surface design of the butt surface 15 provides internal lateral force to ensure stable resistance contact.

[0034] like Figure 3 , 4 As shown, one end of the spring 8 is connected to the inner side of the inner needle tube 4, and a conductive bead 7 is clamped on the upper part of the spring 8. The surface of the conductive bead 7 is coated with a gold-plated layer, which can greatly reduce the contact resistance of the product.

[0035] like Figure 3 As shown, the outer side of the middle part of the crown spring 5 is in contact with the lumen 3, and the upper and lower inner walls of the crown spring 5 are in contact with the outer wall of the inner needle tube 4. The contact interface between the inner needle tube 4 and the outer needle tube 1 is changed to an extra-long elastic crown spring 5 for connection, so that there are more contacts and they can be quickly replaced and updated, while also effectively reducing the impact of vibration and large current.

[0036] like Figure 5 As shown, a plurality of spring leaves are evenly arranged in the middle of the crown spring 5 , and a spring groove 16 is opened on the spring leaf. The deformation capacity of the crown spring 5 is improved, and the crown spring 5 can effectively reduce vibration.

[0037] like Figure 3 As shown, the wall of the lumen 3 is a smooth structure, which can reduce the friction between the reed of the crown spring 5 and the lumen 3, thereby making the contact more reliable and the response more sensitive.

[0038] like Figure 1 , 3 As shown, the surfaces of the lumen 3 and the inner needle tube 4 are provided with a nickel plating layer to ensure the wear resistance and oxidation resistance of the lumen 3 and the inner needle tube 4, thereby improving the service life of the lumen 3 and the inner needle tube 4. The surface of the needle is provided with a gold plating layer, which can greatly reduce the contact resistance of the product, thereby improving the use effect of the connector assembly.

[0039] In the specific implementation of this embodiment, through the structural setting of the high-performance connector assembly, compared with the conventional pogo pin that is connected to the motherboard by welding, the pogo pin of the present invention is changed from hard interference to elastic interference for the first time, which can ensure reliable contact in high-vibration environment applications and share the application requirements of transmitting large currents. The high-performance connector assembly can be used on unmanned transport aircraft as a fast charging interface;

[0040] Through the structural setting of the needle, the crown teeth 14 of the needle are designed into a 9-tooth pyramid style. In addition to being able to effectively puncture the exposed charging PAD on the apron, the crown teeth 14 are in contact at the same time to avoid the heating effect caused by the current concentration during vibration, greatly improving the service life. In addition, the crown design is adopted on the top of the needle to ensure that dust in outdoor scenes falls into the inner needle tube 4, and the waterproof ring 11 design between the inner needle tube 4 and the outer needle tube 1 is used to avoid the hidden danger of dust falling in the use scene from the source;

[0041] One end of the spring 8 is connected to the inner side of the inner needle tube 4, a conductive bead 7 is clamped on the upper part of the spring 8, and a butt surface 15 is provided at the lower end of the needle rod 12. The conductive bead 7 contacts the butt surface 15, and the butt surface 15 is inclined. The angle of inclination of the butt surface 15 to the lower left is 18°. The inclined surface design of the butt surface 15 provides internal lateral force to ensure stable resistance contact, and the outer side of the middle part of the crown spring 5 is in contact with the lumen 3, and the upper and lower inner walls of the crown spring 5 are in contact with the outer wall of the inner needle tube 4. The contact interface between the inner needle tube 4 and the outer needle tube 1 is changed to an ultra-long elastic crown spring 5 for connection, so that there are more contacts, and they can be quickly replaced and updated, and can also effectively reduce the influence of vibration and large current. Through such a structural setting, the conductive circuit of the high-performance connector assembly is increased from one to two, which effectively overcomes the influence of load impact;

[0042] By providing a limiting ring 9 at the lower part of the inner needle tube 4, it is convenient for the user to blindly insert and assemble the crown spring 5. The assembly can be performed at any time, which greatly reduces the difficulty of assembly.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-performance connector assembly, comprising an outer needle tube (1), characterized in that: A PCB board (2) is welded on the outer side of the outer needle tube (1), a lumen (3) is provided in the vertical direction inside the outer needle tube (1), an inner needle tube (4) is arranged in the lumen (3), a needle head is slidably connected to the inner wall of the inner needle tube (4), a crown spring (5) is arranged in the lumen (3), a small hole (6) is provided below the inner needle tube (4), a conductive bead (7) is provided on the inner side of the inner needle tube (4), a spring (8) is provided in the inner needle tube (4), and a limit ring (9) is provided at the bottom of the inner needle tube (4).

2. A high performance connector assembly according to claim 1, characterized in that: A sealing groove (10) is provided on the upper part of the inner needle tube (4), a waterproof ring (11) is provided on the upper part of the tube cavity (3), and the sealing groove (10) is engaged with the waterproof ring (11).

3. A high performance connector assembly according to claim 1, characterized in that: The needle head comprises a needle rod (12) slidably connected to the inner wall of the inner needle tube (4), a needle crown (13) is arranged above the needle rod (12), and a plurality of crown teeth (14) are evenly arranged on the top of the needle crown (13).

4. A high performance connector assembly according to claim 3, characterized in that: The needle crown (13) and the needle rod (12) are arranged in an integrally formed structure, the number of the crown teeth (14) is 9, and the crown teeth (14) are pyramid-shaped.

5. A high performance connector assembly according to claim 4, characterized in that: The lower end of the needle rod (12) is provided with a butt surface (15), the butt surface (15) is arranged tilted, the angle of inclination of the butt surface (15) to the lower left is 18 degrees, and the conductive bead (7) is in contact with the butt surface (15).

6. A high performance connector assembly according to claim 1, characterized in that: One end of the spring (8) is connected to the inner side of the inner needle tube (4), and the conductive bead (7) is clamped on the upper part of the spring (8).

7. A high performance connector assembly according to claim 1, characterized in that: The outer side of the middle part of the crown spring (5) is in contact with the lumen (3), and the upper and lower inner walls of the crown spring (5) are in contact with the outer wall of the inner needle tube (4).

8. A high performance connector assembly according to claim 7, characterized in that: A plurality of reed leaves are evenly arranged in the middle of the crown spring (5), and a sheet groove (16) is provided on the reed leaves.

9. A high performance connector assembly according to claim 1, characterized in that: The cavity wall of the tube cavity (3) is arranged in a smooth surface structure.

10. A high performance connector assembly according to claim 1, characterized in that: The surfaces of the tube cavity (3) and the inner needle tube (4) are provided with a nickel-plated layer, and the surface of the needle tip is provided with a gold-plated layer.

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