Connecting terminal and connector

Abstract

The utility model provides a connecting terminal and a connector, the connecting terminal comprises a main body pipe, and the main body pipe is provided with a first end and a second end; a plurality of elastic pressing pieces are arranged on the pipe wall of the body pipe close to the first end, the ends, close to the first end, of the elastic pressing pieces are pre-pressed to incline towards the center line of the body pipe, and the ends, close to the second end, of the elastic pressing pieces are integrated with the pipe wall of the body pipe. A plurality of elastic flying claws are arranged on the middle pipe wall of the main pipe, one end, close to the first end, of each elastic flying claw is integrated with the pipe wall of the main pipe, and one end, close to the second end, of each elastic flying claw is pre-pressed to open towards the outer side of the main pipe. The connecting terminal structure provided by the utility model is suitable for being manufactured in one machine in a metal plate process, the working procedures are few, the cost is reduced, the structure formed on the main body pipe can directly play the role of the conventional crown spring, the crown spring does not need to be independently adopted, and the cost of the connecting terminal and the connector can be further reduced. And moreover, the connector does not need to be sealed by epoxy resin, so that the cost can be further reduced.

Description

Technical Field

[0001] The utility model relates to a connection terminal and a connector. The connector is a device for transmitting signals and / or power sources applied in automobiles, aircrafts, underwater environments, etc., and the connection terminal is a component applied in the connector. Background Art

[0002] The connector includes a plastic main body, a nut and an array of connection terminals. The plastic main body is provided with terminal holes arranged in an array, and the connection terminals are inserted into the terminal holes one by one.

[0003] In the past, connection terminals were mainly manufactured by turning raw material rods and combining other processes. As Figures 7 - 9 shown, the connection terminal includes a solid main body rod 200, with connection holes 201 and 202 at both ends. Among them, a crown spring 203 is arranged in the connection hole 201 at one end (the first end) that cooperates with the mating part. After the crown spring 203 is installed, the hole opening is riveted smaller to prevent the crown spring from falling out. For such a connection terminal, the solid main body rod 200 needs to be processed by turning and a separate crown spring 203 needs to be configured. The cost of the crown spring is relatively high, and at least two processes need to be set up for installing the crown spring. Therefore, the cost is relatively high. Further, the diameter of the solid main body rod is often relatively thin, and there will be a large gap with the wall of the terminal hole. Considering that when injecting plastic later, high-pressure liquid plastic may enter the mating part along this gap, and considering that the position of the solid main body rod 200 in the terminal hole is unstable, it is necessary to seat glue (epoxy resin 204) at the other end (the second end) of the plastic main body to seal the terminal hole. Thus, more costs will be increased. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connection terminal and a connector, which can simplify the process and reduce the cost.

[0005] According to the first aspect of the utility model, the following technical solutions are adopted:

[0006] A connection terminal, characterized in that it includes a main body tube, and the main body tube has a first end and a second end; several elastic pressing pieces are opened on the tube wall of the main body tube near the first end, and one end of the elastic pressing piece near the first end is pre-pressed to incline towards the center line of the main body tube, and the other end near the second end is integrally formed with the tube wall of the main body tube; several elastic flying claws are opened on the tube wall in the middle of the main body tube, and one end of the elastic flying claw near the first end is integrally formed with the tube wall of the main body tube, and the other end near the second end is pre-pressed to open towards the outside of the main body tube.

[0007] On the basis of adopting the above technical solutions, the utility model can also adopt the following further technical solutions, or use a combination of these further technical solutions:

[0008] Between the open end of the elastic flying claw and the second end of the main body tube, a first stop piece is provided on the tube wall of the main body tube near the second end. The first stop piece has the same cross-sectional shape as the inner hole of the main body tube. One end of the first stop piece close to the first end of the main body tube is integral with the tube wall of the main body tube. The first stop piece is bent inward at the end integral with the tube wall of the main body tube and is located in the inner hole of the main body tube, cutting off the inner hole to prevent high-pressure liquid plastic from flowing from the second end of the main body tube along the inner hole of the main body tube to the first end during injection molding.

[0009] The main body tube has a short cylindrical port section at the first end. One end of the elastic pressing piece near the first end has a V-shaped bend to form an introduction structure and a buckle structure.

[0010] The second end of the main body tube is cup-shaped and open to the side in a groove shape.

[0011] Between the open end of the elastic flying claw and the second end of the main body tube, near the open end of the elastic flying claw, a second stop piece is provided on the tube wall of the main body tube. The second stop piece has the same cross-sectional shape as the inner hole of the main body tube. One end of the second stop piece close to the first end of the main body tube is integral with the tube wall of the main body tube. The second stop piece is bent inward at the end integral with the tube wall of the main body tube and is located in the inner hole of the main body tube, cutting off the inner hole to prevent high-pressure liquid plastic from flowing from the second end of the main body tube along the inner hole of the main body tube to the first end during injection molding.

[0012] The main body tube is made by curling a sheet, and the elastic pressing piece and the elastic flying claw are formed by stamping on the sheet.

[0013] The main body tube is made by curling a sheet, and the elastic pressing piece, the elastic flying claw, and the first stop piece are formed by stamping on the sheet.

[0014] The main body tube is made by curling a sheet, and the elastic pressing piece, the elastic flying claw, the first stop piece, and the second stop piece are formed by stamping on the sheet.

[0015] According to the second aspect of the present invention, the present invention adopts the following technical solutions:

[0016] A connector includes a plastic main body, a nut, and an array of connection terminals. Terminal holes arranged in an array are provided in the plastic main body, and the connection terminals are inserted into the terminal holes one by one. It is characterized in that the connection terminals adopt the connection terminals of the above results;

[0017] The wall of the terminal hole is provided with a step to cooperate with the open end of the elastic flying claw to position the connection terminal;

[0018] The connection terminal is provided with a structure for closing the inner hole of the main body tube; when the first stop piece and / or the second stop piece is provided, the first stop piece and / or the second stop piece is used to close the inner hole of the main body tube;

[0019] The inner diameter of the main body tube is close to the inner diameter of the terminal hole, and no glue is provided at the second end of the plastic main body to seal the gap between the terminal and the terminal hole.

[0020] Due to the adoption of the technical solution of the present utility model, the connection terminal structure provided by the present utility model is suitable for being manufactured by metal sheet metal process in one machine, with fewer processes, lower costs, and the structure formed on the main body tube can directly play the role of the previous crown spring, eliminating the need for a separate crown spring, which can further reduce the costs of the connection terminal and the connector. Moreover, the connection terminal of the present utility model can be axially and circumferentially positioned with the terminal hole wall through the flying claws on the main body tube, and the diameter can be made relatively larger, eliminating the need for epoxy resin potting seal, which can further reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the connection terminal embodiment of the present utility model.

[0022] Figure 2 It is Figure 1 the A-A cross-sectional view of.

[0023] Figure 3 It is Figure 1 the perspective view of the connection terminal embodiment shown.

[0024] Figure 4 It is the exploded view of the connector embodiment of the present utility model.

[0025] Figure 5 It is the front view of the connector embodiment of the present utility model.

[0026] Figure 6 It is Figure 5 the B-B cross-sectional view of.

[0027] Figure 7 It is the front view of the existing connection terminal described in the background art.

[0028] Figure 8 It is Figure 7 the C-C cross-sectional view of.

[0029] Figure 9 It is the exploded view of the existing connection terminal.

[0030] Figure 10 It is the cross-sectional view of the existing connector described in the background art. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Referring to Figure 1 、 2, 3, 4, 5, 6. A connection terminal provided by the present utility model includes a main body tube 1, and the main body tube 1 has a first end (the upper end in Figure 1 is the upper end) and a second end (the lower end in Figure 1 is the lower end); several elastic pressing pieces 11 are provided on the tube wall of the main body tube near the first end, and one end of the elastic pressing piece 11 near the first end is pre-pressed to incline towards the center line O of the main body tube, and the other end near the second end is integrally formed with the tube wall of the main body tube; several elastic flying claws 12 are provided on the tube wall in the middle of the main body tube, one end of the elastic flying claw 12 near the first end is integrally formed with the tube wall of the main body tube, and the other end near the second end is pre-pressed to open towards the outside of the main body tube 1.

[0032] The main body tube 1 has a short cylindrical port section 13 at the first end, which can play a further guiding and stabilizing role after the plug of the mating part is inserted and strengthen the strength of the entire main body tube. The elastic pressing piece 11 has a V-shaped bend (or an elastic shape that is not limited to V-shaped) at one end near the first end to form an introduction structure 111 and a buckle structure 112, so as to be able to introduce the plug of the mating part and engage with the plug.

[0033] The main body tube 1 is cup-shaped and open to the side at the second end to form a groove 14, which is convenient for welding connection work.

[0034] Between the open end of the elastic flying claw 12 and the second end of the main body tube, a first stop piece 15 is provided on the tube wall of the main body tube near the second end. The first stop piece 15 has the same cross-sectional shape as the inner hole 10 of the main body tube, which can be substantially circular. One end of the first stop piece 15 near the first end of the main body tube is integrally formed with the tube wall of the main body tube. The first stop piece 15 is bent inward at the end integrally formed with the tube wall of the main body tube and is located in the inner hole 10 of the main body tube, cutting off the inner hole 10 to prevent high-pressure liquid plastic from flowing from the second end along the inner hole 10 of the main body tube to the first end during injection molding.

[0035] Between the open end of the elastic flying claw 12 and the second end of the main body tube, a second stop piece 16 is provided on the tube wall of the main body tube near the open end of the elastic flying claw 12. The second stop piece 16 has the same cross-sectional shape as the inner hole 10 of the main body tube. One end of the second stop piece near the first end of the main body tube is integrally formed with the tube wall. The second stop piece 16 is bent inward at the end integrally formed with the tube wall of the main body tube and is located in the inner hole 10 of the main body tube, cutting off the inner hole 10 to prevent high-pressure liquid plastic from flowing from the second end of the main body tube along the inner hole 10 of the main body tube to the first end during injection molding.

[0036] The structure of the above connection terminal is suitable for being manufactured by stamping sheet metal and bending. In the present utility model, the main body tube 1 is made by curling a sheet, and the reference numeral 17 in the attached drawing is the seam when curled into a tube shape. The elastic pressing piece 11, the elastic flying claw 12, the first stop piece 15, and the first stop piece 16 are all formed by stamping on the sheet. Thus, it can be conveniently manufactured on one machine. For the structure of closing the inner hole of the connection terminal, by adopting the first stop piece 15 and / or the second stop piece 16, it can also be achieved in one step when manufacturing the connection terminal.

[0037] The following further introduces a connector adopting the above connection terminal, including a plastic main body 2, a nut 3, and a connection terminal array. The plastic main body 2 is provided with terminal holes 20 arranged in an array, and the connection terminal adopts the above connection terminal; the connection terminals are inserted into the terminal holes 20 one by one.

[0038] The wall of the terminal hole is provided with a step 21 to cooperate with the open end of the elastic flying claw 12 to position the connection terminal; among them, the number of elastic flying claws can be 2, 3, 4, etc. Axial positioning is carried out through the cooperation of the open end and the step surface, and circumferential tight positioning is formed with the hole wall at the step through the outward opening of the elastic flying claw. As described above, the first stop piece and the second stop piece are used to close the inner hole 10 of the connection main body tube.

[0039] In the present utility model, the inner diameter of the main body tube can be made very close to the inner diameter of the terminal hole with almost no additional material under the allowable assembly process. In this way, when injecting plastic, the high-pressure liquid plastic cannot flow into the opposing part between the wall of the main body tube 1 and the terminal hole 20, and the second end of the plastic main body is not provided with glue (i.e., Figure 9 the shown epoxy resin 204) for closing the gap between the connection terminal and the terminal hole. Figure 4 、 6 In, the reference numeral 5 in the attached drawing is a water sealing ring.

[0040] The above are only specific embodiments of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the protection scope of the present utility model.

[0041] It should be noted that the terms "comprising", "having" and any variations thereof in the description, claims and above-mentioned drawings of the present utility model are intended to cover non-exclusive inclusion. The terms "mounted", "arranged", "provided with", "connected", "coupled", "socketed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0042] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "one end", "the other end", "outer side", "inner side", "horizontal", "end portion", "length", "outer end", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

Claims

1. A connection terminal, characterized in that, It includes a main body tube, and the main body tube has a first end and a second end; several elastic pressing pieces are provided on the tube wall of the main body tube near the first end, and one end of the elastic pressing piece near the first end is pre-pressed to incline towards the center line of the main body tube, and the end near the second end is integral with the tube wall of the main body tube; several elastic flying claws are provided on the tube wall in the middle of the main body tube, and one end of the elastic flying claws near the first end is integral with the tube wall of the main body tube, and the end near the second end is pre-pressed to open towards the outside of the main body tube.

2. The connection terminal according to claim 1, characterized in that, Between the open end of the elastic flying claw and the second end of the main body tube, a first stop piece is provided on the tube wall of the main body tube near the second end, and the first stop piece has the same cross-sectional shape as the inner hole of the main body tube. One end of the first stop piece near the first end of the main body tube is integral with the tube wall of the main body tube. The first stop piece is bent inward at the end integral with the tube wall of the main body tube and is located in the inner hole of the main body tube, cutting off the inner hole to prevent high-pressure liquid plastic from flowing from the second end of the main body tube along the inner hole of the main body tube to the first end during injection molding.

3. A connection terminal according to claim 1, characterized in that, The main body tube has a short cylindrical port section at the first end, and one end of the elastic pressing piece near the first end has a V-shaped bend to form an introduction structure and a buckle structure.

4. A connection terminal according to claim 1, characterized in that, The main body tube cups towards the side and is open in a groove shape at the second end.

5. A connection terminal according to claim 1, 2, 3 or 4, characterized in that Between the open end of the elastic flying claw and the second end of the main body tube, near the open end of the elastic flying claw, a second stop piece is provided on the tube wall of the main body tube. The second stop piece has the same cross-sectional shape as the inner hole of the main body tube. One end of the second stop piece near the first end of the main body tube is integral with the tube wall of the main body tube. The second stop piece is bent inward at the end integral with the tube wall of the main body tube and is located in the inner hole of the main body tube, cutting off the inner hole to prevent high-pressure liquid plastic from flowing from the second end of the main body tube along the inner hole of the main body tube to the first end during injection molding.

6. A connection terminal according to claim 1, 3 or 4, characterized in that The main body tube is made by curling a plate, and the elastic pressing pieces and elastic flying claws are formed by stamping on the plate.

7. The connection terminal according to claim 2, wherein, The main body tube is made by curling a plate, and the elastic pressing pieces, elastic flying claws and first stop pieces are formed by stamping on the plate.

8. The connection terminal according to claim 5, wherein The main body tube is made by curling a plate, and the elastic pressing pieces, elastic flying claws, first stop pieces and second stop pieces are formed by stamping on the plate.

9. A connector, comprising a plastic body, a nut, and an array of connection terminals. The plastic body is provided with terminal holes arranged in an array, and the connection terminals are inserted one by one into the terminal holes, characterized in that The connecting terminal adopts the connecting terminal described in claim 1, 3, 4 or 6; The wall of the terminal hole is provided with a step to cooperate with the open end of the elastic flying claw to position the connecting terminal; The connecting terminal is provided with a structure for closing the inner hole of the main body tube; The inner diameter of the main body tube is close to the inner diameter of the terminal hole, and no glue for closing the gap between the connecting terminal and the terminal hole is provided at the second end of the plastic main body.

10. A connector, comprising a plastic body, a nut, and an array of connection terminals. The plastic body is provided with terminal holes arranged in an array, and the connection terminals are inserted into the terminal holes one by one, characterized in that The connecting terminal adopts the connecting terminal described in claim 2, 5, 7 or 8; The wall of the terminal hole is provided with a step to cooperate with the open end of the elastic flying claw to position the connecting terminal; The first stop piece and / or the second stop piece is used to close the inner hole of the main body tube; The inner diameter of the main body tube is close to the inner diameter of the terminal hole, and no glue for closing the gap between the connecting terminal and the terminal hole is provided at the second end of the plastic main body.

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