CN216698996U - Switching structure - Google Patents

Abstract

The utility model provides a switching structure, relates to the technical field of electric element manufacturing, and particularly relates to a switching structure. The connector comprises an adapter, a connecting piece and a connecting piece, wherein the adapter is provided with a plug-in part, an elastic part and a connecting part which are sequentially connected, and the plug-in part and the connecting part are arranged at a spatial included angle; the upper shell is provided with an upper through hole, and the inserting part is arranged in the upper through hole; a lower case having a lower through hole through which the connection part passes; the upper shell and the lower shell are detachably connected. The adaptor can be connected with the PCB in an inserting way, so that convenience and rapidness are realized; the elastic part can play a buffering role, and the deformation of two ends of the adapter caused by overlarge insertion and extraction force is prevented. The inserting part and the connecting part have an included angle, so that the problem of connection between the to-be-inserted part and the PCB with different inserting directions can be solved. The adapter can be protected by matching the upper shell with the lower shell, and the adapter is in interference fit in the upper through hole, so that the upper shell can drive one or more adapters to be integrally connected with the PCB in an inserting mode.

Description

Switching structure

Technical Field

The utility model relates to the technical field of electric element manufacturing, in particular to a switching structure.

Background

In electrical assembly, the PCB connector is widely used, and as long as there are electronic components such as integrated circuits, the PCB is used to electrically interconnect the components. Since the components of the PCB product integrally assembled with various elements are manufactured in standardized designs and on a large scale, the components are standardized. Therefore, once the system fails, the system can be replaced quickly, conveniently and flexibly, and the work of the system can be recovered quickly. However, in practical use, a situation that an existing device needs to be plugged on a PCB but cannot be directly plugged due to the mismatching direction of the plug connector is often encountered. If a cable is used for connection, a plurality of wires are required to be added, so that the space near the PCB is crowded; or redesign of the PCB board results in a significant increase in cost. That is, there is no structure that can perform a connection function when the plugging direction of the plug connector is not matched with that of the PCB, and therefore, a new solution is needed in the prior art to solve the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a switching structure to solve the problem that a plug connector and a circuit board cannot be plugged due to different plugging directions.

The above object of the present invention can be achieved by the following technical solutions:

an adapter structure comprising:

the adaptor is provided with an inserting part, an elastic part and a connecting part which are sequentially connected, and the inserting part and the connecting part are arranged at a spatial included angle;

the upper shell is provided with an upper through hole, and the inserting part is arranged in the upper through hole;

a lower case having a lower through hole through which the connection part passes;

the upper shell and the lower shell are detachably connected.

The elastic part is of an S-shaped bending structure.

The adapter comprises one connecting part and at least two inserting parts.

The insertion part is in interference fit with the upper through hole.

An insulating layer is arranged on the elastic part.

The upper shell is clamped with the lower shell.

The upper shell and the lower shell form an included angle, and the included angle ranges from 90 degrees to 180 degrees

The inserting part is an inserting female end, and a coating is arranged on the inserting female end.

The adapter is made of tellurium copper alloy.

The utility model has the characteristics and advantages that: the adaptor can be connected with the PCB in an inserting way, so that convenience and rapidness are realized; the elastic part can play a buffering role, and the deformation of two ends of the adapter caused by overlarge insertion and extraction force is prevented. The inserting part and the connecting part have an included angle, so that the problem of connection between the to-be-inserted part and the PCB with different inserting directions can be solved. The adapter can be protected by matching the upper shell with the lower shell, and the adapter is in interference fit in the upper through hole, so that the upper shell can drive one or more adapters to be integrally connected with the PCB in an inserting mode.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of an adapter structure according to the present invention.

Fig. 2 is a schematic structural diagram of an adapter structure according to the present invention.

Fig. 3 is a schematic structural diagram of another adapter of an adapter structure according to the present invention.

Fig. 4 is a schematic structural diagram of another embodiment of an adapter structure according to the present invention.

Fig. 5 is a schematic structural diagram of an upper housing of an adapter structure according to the present invention.

Fig. 6 is a schematic structural diagram of a lower housing of an adapter structure according to the present invention.

The reference numbers illustrate: 1-adaptor, 11-plug part, 12-elastic part, 13-connecting part, 2-upper shell, 21-upper through hole, 22-bulge, 3-lower shell, 31-lower through hole and 32-bayonet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An adapter structure is shown in figures 1-4 and comprises an adapter 1, a connecting piece and a connecting piece, wherein the adapter 1 is provided with a plug-in part 11, an elastic part 12 and a connecting part 13 which are sequentially connected, and the plug-in part 11 and the connecting part 13 are arranged at a spatial included angle; the upper shell 2 is provided with an upper through hole 21, and the inserting part 11 is arranged in the upper through hole 21; a lower case 3 having a lower through hole 31, the connection part 13 passing through the lower through hole 31; the upper shell 2 is detachably connected with the lower shell 3.

This use is novel can be used for the grafting of PCB board, and grafting portion 11 of adaptor 1 is used for pegging graft with the plug connector on the PCB board, and connecting portion 13 is used for and treats the plug connector grafting, and grafting portion 11 has the angle with connecting portion 13 on the assembly direction, is used for solving other plug connectors because the direction problem can not directly carry out the problem of pegging graft with the PCB board. The elastic part 12 has a buffering function, and can prevent the adapter 1 from being too rigid, so that the PCB is prevented from being damaged by excessive force during plugging. Go up casing 2 and can lay a plurality of adaptor 1 simultaneously in the casing 3 down, both played the guard action to adaptor 1, can make a plurality of adaptors 1 accomplish whole grafting simultaneously again, raise the efficiency. The included angle between the insertion part 11 and the connecting part 13 is designed according to the requirement and can be various angles. That is, the plugging direction of the plugging portion 11 and the plugging direction of the connecting portion 13 have a certain angle to realize the connection between the to-be-plugged member and the PCB. Specifically, when the plugging part 11 and the connecting part 13 are both in the vertical direction, as shown in fig. 2, the plugging surface of the plugging part 11 and the connecting surface of the connecting part 13 may be in parallel planes or in intersecting planes. Alternatively, as shown in fig. 3, the connection surface of the connection part 13 is perpendicular to the horizontal direction, and the mating surface of the mating part 11 is not perpendicular to the horizontal direction.

In some embodiments, the elastic portion 12 has an S-shaped bending structure. As shown in fig. 2 and 3, the S-shaped bending structure has two bending portions, so that the impact force during plugging can be effectively reduced, and the PCB or other devices can be prevented from being damaged. In practical use, other shapes of the elastic portion 12 may be used, such as C-shaped, M-shaped, N-shaped, U-shaped, V-shaped, or Z-shaped. Any shape that can provide a cushioning effect may be used.

In some embodiments, the adaptor 1 comprises a connecting portion 13 and at least two mating portions 11. In some cases, one pin of the to-be-plugged connector needs to be connected with a plurality of plugging positions on the circuit board, so that the adapter 1 can be designed to have one connecting part 13 and a plurality of plugging parts 11 at the same time according to needs, and thus, the one-end-to-multi-end connection condition can be met.

In some embodiments, the insertion part 11 is in interference fit with the upper through hole 21. Thus, the inserting part 11 is disposed in the upper housing 2, and the upper housing 2 drives the inserting part 11 to complete inserting matching with the circuit board.

In some embodiments, the elastic portion 12 is provided with an insulating layer, which can prevent the short circuit phenomenon caused by the erroneous contact between the elastic portions 12.

In some embodiments, the upper housing 2 is snap-fitted to the lower housing 3. As shown in fig. 5 and 6, the upper housing 2 is provided with a protrusion 22, the lower housing 3 is provided with a bayonet 32, and the upper housing 2 and the lower housing 3 are connected together through the protrusion 22 and the bayonet 32 to jointly protect the connecting piece 1.

In addition, the upper shell 2 and the lower shell 3 can be connected by one or more of adhesive connection, magnetic attraction connection, plug connection, threaded connection and rivet connection.

The contact surface of the upper shell 2 and the contact surface of the lower shell 3 are adhesive layers in the adhesive connection, the adhesive layers are made of heat conduction materials and are provided with adhesive materials, and the upper shell 2 and the lower shell 3 are adhered together through the adhesive layers.

The connection of inhaling is for last casing 2 and lower casing 3 contact surface to inhale the piece for magnetism, inhales the magnetic force between the piece through magnetism and connects, connects convenient and fast, mainly is applied to the environment that the cohesion requirement is not high to last casing 2 and lower casing 3.

The plug-in connection is that one of the contact surfaces of the upper shell 2 and the lower shell 3 is a clamping jaw, and the other is a clamping groove, and the contact surfaces of the upper shell 2 and the lower shell 3 are stably connected together through the plug-in assembly of the clamping jaw and the clamping groove.

The threaded connection is that threads and screws are respectively arranged on the upper shell 2 and the lower shell 3, and the contact surfaces of the upper shell 2 and the lower shell 3 are stably connected together through the threads of the threads and the screws. The screwing structure has minimum M3 screw thread and screw, and the screwing structure has minimum torque of 0.2Nm when being screwed.

The riveting connection is that the upper shell 2 and the lower shell 3 are respectively provided with a connecting hole, the rivet penetrates through the connecting holes and deforms by penetrating one end of the rivet, so that the connecting holes are tensioned, and the contact surfaces of the upper shell 2 and the lower shell 3 are stably connected together.

In some embodiments, the connection portion 13 is connected to the cable by one or more of resistance welding, friction welding, ultrasonic welding, arc welding, laser welding, electron beam welding, pressure diffusion welding, magnetic induction welding, screwing, and crimping. In some cases, the connecting part 13 is not connected with the to-be-plugged part but is used for being directly connected with a cable, and the plugging part 11 is plugged with the PCB, so that the whole plugging and replacing are convenient.

The resistance welding method is a method of welding by using a strong current to pass through a contact point between an electrode and a workpiece and generating heat by a contact resistance.

The friction welding method is a method of welding by plastically deforming a workpiece under pressure using heat generated by friction of a contact surface of the workpiece as a heat source.

The ultrasonic welding method is a method in which high-frequency vibration waves are transmitted to the surfaces of two objects to be welded, and the surfaces of the two objects are rubbed against each other under pressure to form fusion between the molecular layers.

The arc welding method is a method of connecting metals by converting electric energy into thermal energy and mechanical energy required for welding using an electric arc as a heat source and utilizing a physical phenomenon of air discharge, and the main methods include shielded metal arc welding, submerged arc welding, gas shielded welding, and the like.

The laser welding method is an efficient and precise welding method using a laser beam with high energy density as a heat source.

The electron beam welding mode is that accelerated and focused electron beams are used to bombard the welding surface in vacuum or non-vacuum to melt the workpiece to be welded for welding.

The pressure welding method is a method of applying pressure to a workpiece to bring the joining surfaces into close contact with each other to generate a certain plastic deformation, thereby completing welding.

Diffusion welding refers to a solid state welding method in which a workpiece is pressed at a high temperature without visible deformation and relative movement.

The magnetic induction welding mode is that two workpieces to be welded produce instantaneous high-speed collision under the action of strong pulse magnetic field, and the surface layer of the material makes the atoms of the two materials meet in the interatomic distance under the action of very high pressure wave, so that a stable metallurgical bonding is formed on the interface. Is one type of solid state cold welding that can weld together conductive metals that may or may not have similar properties.

The screw connection mode refers to a screw connection, and the connected piece is connected into a whole by a screw element (or a screw thread part of the connected piece) to form a detachable connection. The common threaded connecting parts include bolts, studs, screws, set screws and the like, and are mostly standard parts.

The crimping mode is a production process of using a crimping machine to punch and press the connecting part 13 and the cable into a whole after the connecting part and the cable are overlapped. The crimping has an advantage of mass productivity, and a product of stable quality can be rapidly manufactured in a large quantity by using an automatic crimping machine.

In some embodiments, the upper housing 2 and the lower housing 3 have an included angle, as shown in fig. 4, in the range of 90-180 °. That is, the upper casing 2 and the lower casing 3 may be linearly connected or vertically disposed. To meet different use requirements.

In some embodiments, the insertion part 11 is an insertion female end, and a plating layer is disposed on the insertion female end. When the PCB board is provided with a male end and the inserting part 11 is provided with a female end, the two ends are inserted. The female end of the plug is provided with a coating. The plating layer is to improve corrosion resistance, improve electric conductivity, increase the number of times of inserting and inserting, can be better extension grafting portion 11's life.

The plating layer can adopt methods such as electroplating, chemical plating, magnetron sputtering or vacuum plating.

The electroplating method is a process of plating a thin layer of other metals or alloys on the surface of some metals by utilizing the electrolysis principle.

The chemical plating method is a deposition process for generating metal through controllable oxidation-reduction reaction under the catalytic action of the metal.

The magnetron sputtering method is characterized in that electrons spirally run near the surface of a target by utilizing the interaction of a magnetic field and an electric field, so that the probability of generating ions by the electrons colliding with argon is increased. The generated ions collide with the target surface under the action of the electric field so as to sputter the target material.

The vacuum plating method is to deposit various metal and non-metal films on the surface of a plastic part by distillation, sputtering or other modes under a vacuum condition.

The coating is made of one or more of gold, silver, nickel, tin, zinc, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver and silver-gold-zirconium alloy. The conductive device is mostly made of copper, and copper is used as an active metal and can be subjected to oxidation reaction with oxygen and water in the using process, so that one or more inactive metals are needed to be used as a plating layer, and the service life of the plugging part is prolonged. In addition, for the metal contact which needs to be plugged and pulled frequently, better wear-resistant metal is needed to be used as a plating layer, and the service life of the contact can be greatly prolonged. The contact also needs good conductive performance, and the conductivity and the stability of the metal are superior to those of copper or copper alloy, so that the plugging part can obtain better electrical performance and longer service life.

In order to demonstrate the influence of different coating materials on the overall performance of the connector 1, the inventor uses the same specification and material, adopts the plug-in part 11 sample piece of different coating materials, and uses the plug-in part of the same specification to carry out a series of plugging times and corrosion resistance time tests on the plug-in part. The experimental results are shown in table 1 below.

The following table 1 shows that the plugging times are that the adaptor 1 is respectively fixed on a laboratory bench, the plugging part 1 is plugged in a simulation mode by adopting a mechanical device, and the situation that the surface coating of the plugging part 1 is damaged needs to be stopped and observed every 100 times of plugging, the surface coating of the plugging part 1 is scratched, the material of the plugging part 1 is exposed, the experiment is stopped, and the plugging times at that time are recorded. The plugging times are less than 8000 times, which is not qualified.

The corrosion resistance time test in table 1 below is to place the plugging part 1 in a salt spray test box, spray salt spray to each position of the plugging part 1, take out and clean every 20 hours to observe the surface corrosion condition, i.e. a period, stop the test until the surface corrosion area of the plugging part 1 is greater than 10% of the total area, and record the period number at that time. In this example, the number of cycles less than 80 was considered to be unacceptable.

Table 1: influence of different coating materials on plugging times and corrosion resistance of plugging part 1

From the above table, when the selected plating layer is made of gold, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver and silver-gold-zirconium alloy, the experimental result exceeds the standard value more and the performance is more stable. When the material of the plating layer is nickel, tin-lead alloy and zinc, the experimental result can meet the requirement, so that the inventor selects the material of the plating layer to be one or a combination of more of gold, silver, nickel, tin-lead alloy, zinc, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver and silver-gold-zirconium alloy.

In some embodiments, the material of the interposer 1 is tellurium copper alloy.

The tellurium copper alloy can ensure that the adapter piece 1 has good conductivity and easy cutting performance, ensure the electrical performance and also improve the processability, and simultaneously, the tellurium copper alloy has excellent elasticity. Preferably, the tellurium content in the tellurium-copper alloy is 0.2% -0.7%.

The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.

Claims (9)

1. An adapter structure, comprising:

the adaptor is provided with an inserting part, an elastic part and a connecting part which are sequentially connected, and the inserting part and the connecting part are arranged at a spatial included angle;

the upper shell is provided with an upper through hole, and the inserting part is arranged in the upper through hole;

a lower case having a lower through hole through which the connection part passes;

the upper shell and the lower shell are detachably connected.

2. The transition structure of claim 1, wherein the resilient portion is an S-shaped bent structure.

3. An adapter structure according to claim 1, wherein said adapter member comprises one said connecting portion and at least two said mating portions.

4. The adapter structure according to claim 1, wherein the insertion portion is in interference fit with the upper through hole.

5. The transition structure of claim 1, wherein the resilient portion is provided with an insulating layer.

6. The transition structure of claim 1, wherein the upper housing is snap-fit to the lower housing.

7. The transition structure of claim 1, wherein the upper housing and the lower housing have an included angle, the included angle being in the range of 90 ° to 180 °.

8. A transfer structure according to claim 1, wherein the plug portion is a female plug end, and a plating layer is disposed on the female plug end.

9. The adapting structure according to claim 1, wherein the material of the adapting piece is tellurium copper alloy.

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