CN211858958U - Connecting terminal - Google Patents

Abstract

The utility model relates to the field of electrical connection structures, in particular to a connecting terminal, which comprises a terminal body, wherein the terminal body is a stamping part, the terminal body is arranged into a tubular pipe wall with axial extension, the terminal body is used for splicing and matching with a matching terminal and is electrically connected with each other, a waterproof part is arranged on the terminal body, the waterproof part is coaxially arranged with the terminal body and is fixedly connected with the terminal body, the waterproof part comprises an outer sleeve, a butt joint groove, a connecting arm and an inner sleeve, the outer sleeve is sleeved on the outside of the pipe wall, the inner sleeve is sleeved inside the pipe wall, the outer sleeve and the inner sleeve are coaxially arranged, the outer sleeve and the inner sleeve are connected through the connecting arm, two butt joint grooves are formed between the outer sleeve and the inner sleeve, the pipe wall passes through the butt joint grooves, and the two butt joint grooves are separated through the inner, the inside of the terminal body is plugged, so that the waterproof requirement can be met.

Description

Connecting terminal

Technical Field

The utility model relates to an electrical connection structure field specifically is to relate to a connecting terminal.

Background

An electrical connector is generally formed by butt-jointing and combining a male terminal and a female terminal, the male terminal and the female terminal are plugged to form electrical conduction, and a connector shell for insulation is installed outside a connecting terminal. In order to meet the application requirement of large current, a large wire diameter is required to be used, multi-point contact is adopted, and certain requirements are imposed on the material thickness of the connecting terminal. The spring type female terminal is one of electric connection terminals. Elastic contact connecting piece has in the one end of female terminal body can be installed, has the shell fragment that has certain clamping-force to the public terminal on the contact connecting piece, goes butt public terminal through contact connecting piece last shell fragment, can prevent effectively that female terminal and public terminal from breaking away from. In some applications, the size of the electrical connector is required to be smaller and smaller. The clamping force of the contact connecting piece with the reduced size on the male terminal is reduced, and the connection stability between the male terminal and the female terminal is insufficient. In the use occasion of frequent vibration, the mechanical connection strength is insufficient, which can cause the failure of the electric connector and influence the stability and safety of use. Most of the existing connecting terminals are turned, the processing mode is high in cost and low in efficiency, and when the male terminal is produced according to the size of the contact connecting piece, the contact connecting piece and the inner space of the female terminal body are different in size, and the insertion depth of the male terminal is limited. In addition, the connection terminal may be installed in a high humidity environment, and the connection terminal itself has an opening, which has poor waterproof performance, so in a rainy environment or a high humidity environment, moisture easily enters into the electronic device through the opening on the connection terminal, so that the circuit board and related electronic components are affected by moisture or corrosion, which affects the use of the electronic device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a connecting terminal is provided, this technical scheme has solved the relatively poor problem of connecting terminal waterproof performance, and the sealing washer of assembly on inner skleeve and the outer sleeve in this connecting terminal carries out the shutoff to terminal body is inside, can satisfy waterproof demand.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a connecting terminal, includes the terminal body, the terminal body is the stamping workpiece, and the terminal body sets up to tubulose and has axially extended pipe wall, and the terminal body is used for and to joining in marriage terminal grafting cooperation and mutual electric connection, is equipped with waterproof piece on the terminal body, waterproof piece and the coaxial setting of terminal body and with terminal body fixed connection, waterproof piece include outer sleeve, butt joint groove, linking arm and inner skleeve, the outer sleeve cover is established at the pipe wall outside, the inner skleeve cover is established inside the pipe wall, coaxial setting between outer sleeve and the inner skleeve, and passes through between outer sleeve and the inner skleeve the linking arm is connected, forms two between outer sleeve and the inner skleeve butt joint groove supplies the pipe wall to pass, and two butt.

Optionally, one end of the pipe wall in the axial direction is inwards recessed to form a second axial retaining hole, the connecting arm is in clamping fit with the second axial retaining hole, the end portion, provided with the second axial retaining hole, of the pipe wall is connected in an inserting mode through the butt joint groove, and the outer sleeve is sleeved on the end portion, provided with the second axial retaining hole, of the pipe wall.

Optionally, the edges of two ends of the outer sleeve in the axial direction are provided with mounting protrusions, and a sealing ring is assembled between the two mounting protrusions.

Optionally, a pressing line part is arranged on one end part of the pipe wall with the second axial retaining hole.

Optionally, the wire pressing portion extends along the axial direction of the pipe wall, the wire pressing portion comprises a pair of connecting arms which are unfolded and arranged, the connecting arms protrude along the radial direction of the pipe wall, the connecting arms are connected with the end portions of the pipe wall through the guide walls, and a plurality of ring wire pressing grooves are formed in the connecting arms.

Optionally, a pipe cavity is arranged in the pipe wall, the inner sleeve is sleeved in the pipe cavity, the end portion, far away from the crimping portion, of one end of the pipe wall is detachably connected with the retaining ring portion, the retaining ring portion and the pipe wall are coaxially arranged, and the retaining ring portion is arranged in the pipe cavity.

Optionally, the retainer ring portion includes a guide protrusion and a buckle, a first axial retaining hole is provided in an inward concave manner at an end portion of the pipe wall far away from the second axial retaining hole, the edge of the retainer ring portion extends along the axial direction of the pipe wall and is provided with the guide protrusion, the guide protrusion is matched with the first axial retaining hole in a clamping manner, at least one buckle extending along the radial direction of the pipe wall is provided at the edge of the retainer ring portion, the radial retaining holes equal to the buckle in number are provided on the outer wall of the pipe wall, and the buckle is matched with the radial retaining hole in a clamping manner.

Optionally, a contact connecting piece is detachably connected between the inner sleeve and the retainer ring portion, two ends of the contact connecting piece in the axial direction are respectively abutted to end portions of the inner sleeve and the retainer ring portion, the contact connecting piece is of an elastic deformation structure which is deformable in radial size, at least one elastic sheet is arranged on the contact connecting piece, the pipe cavity supplies the power for inserting the matching terminal, and the elastic sheets are radially abutted to the inner wall of the pipe wall and the outer wall of the matching terminal respectively to form multi-point electrical contact.

Optionally, both sides of each buckle are provided with an adjusting groove.

Optionally, the pipe wall has just to the first seam wall and the second seam wall that set up, first seam wall with second seam wall circumference is just to setting up to enclose into the lumen, and inwards sunken being equipped with the butt joint on the first seam wall, outwards protruding being equipped with the butt joint arch on the second seam wall, the butt joint arch extends to in the butt joint to with the cooperation of butt joint, the butt joint arch sets up to isosceles trapezoid, and the width of butt joint open-ended diminishes gradually.

Compared with the prior art, the utility model beneficial effect who has is:

the pipe cavity through the terminal body can realize to joining in marriage the grafting with the terminal of joining in marriage that corresponds, overall structure is retrencied, and the terminal body passes through the punching press manufacturing and forms, can save material and save manufacturing cost, be favorable to popularizing and applying, the fender portion is detachable design, can change easily and change contact connectors under the serious condition of contact connectors wearing and tearing, no longer need whole terminal body to cut the change, waterproof and terminal body integrated into one piece's technology, can realize more complicated structure, waterproof can regard as the supporting part simultaneously, can support the terminal body and prevent terminal body axial float, and do whole circumference to the terminal body and support, prevent seam department fracture and deformation on the pipe wall, the sealing washer of assembly on inner skleeve and the outer sleeve, carry out the shutoff to terminal body inside, can satisfy waterproof demand.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

fig. 3 is a bottom view of the present invention;

fig. 4 is a front view of the present invention;

fig. 5 is a top view of the present invention;

FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 5;

fig. 7 is a third schematic structural view of the present invention;

fig. 8 is an exploded view of the present invention;

FIG. 9 is an enlarged schematic view at A of FIG. 8;

FIG. 10 is a schematic structural view of the present invention in a state where no retaining ring is installed;

fig. 11 is a schematic structural view of the present invention in a state where the waterproof member is not installed;

fig. 12 is a schematic structural view of the contact connector of the present invention.

In the figure:

1-a terminal body; 1 a-tube wall; 1a 1-lumen; 1a2 — first seam wall; 1a 3-pair of interfaces; 1a 4-second seam wall; 1a 5-mating projection; 1 b-a radial retention hole; 1c — a first axial retention hole; 1 d-a second axial retention hole;

2-a waterproof member; 2 a-an outer sleeve; 2a 1-mounting boss; 2 b-a docking bay; 2 c-linker arm; 2 d-inner sleeve;

3-a line pressing part; 3 a-a linker arm; 3 b-a guide wall; 3 c-a line pressing groove;

4-a collar portion; 4 a-a guide projection; 4 b-buckling; 4 c-an adjustment tank;

5-a contact connection; 5 a-spring plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As an embodiment of the utility model, the utility model provides a connecting terminal, including the terminal body, the terminal body is the stamping workpiece, and the terminal body sets up to tubulose and has axially extended pipe wall, and the terminal body is used for and to joining in marriage terminal grafting cooperation and mutual electric connection, is equipped with waterproof on the terminal body, waterproof and terminal body coaxial setting and with terminal body fixed connection, waterproof include outer sleeve, butt joint groove, linking arm and inner skleeve, the outer sleeve cover is established at the pipe wall outsidely, the inner skleeve cover is established inside the pipe wall, coaxial setting between outer sleeve and the inner skleeve, and passes through between outer sleeve and the inner skleeve the linking arm is connected, forms two between outer sleeve and the inner skleeve butt joint groove, and the butt joint groove supplies the pipe wall to pass, and two butt joint grooves separate.

Through the design of the connecting terminal, the pipe cavity of the terminal body can be matched and inserted with the corresponding matching terminal, the whole structure is simplified, the terminal body is formed by stamping, so that the material and the manufacturing cost can be saved, the popularization and the application are facilitated, the stop ring part is in a detachable design, the contact connecting piece can be replaced easily under the condition that the contact connecting piece is seriously abraded, the whole terminal body is not required to be sheared and replaced, the process of integrally molding the waterproof piece and the terminal body can realize a more complex structure, meanwhile, the waterproof part can be used as a supporting part to support the terminal body to prevent the terminal body from axially moving, and the terminal body is supported in an integral circumference manner, so that the cracking and deformation of the seam on the pipe wall are prevented, and the inner part of the terminal body is plugged by the sealing rings assembled on the inner sleeve and the outer sleeve, so that the waterproof requirement can be met.

The preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to fig. 1, 2 and 8, the connection terminal includes a terminal body 1, and the terminal body 1 is a stamping part, so as to save material, facilitate manufacturing and save cost. Terminal body 1 sets up to tubulose and has axial extension's pipe wall 1a, terminal body 1 be used for with join in marriage terminal grafting cooperation and mutual electric connection, be equipped with waterproof piece 2 on the terminal body 1, waterproof piece 2 with terminal body 1 coaxial setting and with terminal body 1 fixed connection, after terminal body 1 stamping forming in this embodiment, put into corresponding mould with terminal body 1, injection moulding waterproof piece 2 in the mould, direct integrated into one piece waterproof piece 2 on terminal body 1 promptly. The waterproof part 2 comprises an outer sleeve 2a, butt joint grooves 2b, a connecting arm 2c and an inner sleeve 2d, the outer sleeve 2a is sleeved outside the pipe wall 1a, the inner sleeve 2d is sleeved inside the pipe wall 1a, the outer sleeve 2a and the inner sleeve 2d are coaxially arranged, the outer sleeve 2a and the inner sleeve 2d are connected through the connecting arm 2c, two butt joint grooves 2b are formed between the outer sleeve 2a and the inner sleeve 2d, the pipe wall 1a penetrates through the butt joint grooves 2b, and the two butt joint grooves 2b are separated through the inner sleeve 2 d.

Referring to fig. 3 and 11, a second axial retaining hole 1d is recessed inward at one end of the tube wall 1a in the axial direction, the connecting arm 2c is snap-fitted into the second axial retaining hole 1d, the end of the tube wall 1a having the second axial retaining hole 1d is inserted into the abutting groove 2b, and the outer sleeve 2a is sleeved on the end of the tube wall 1a having the second axial retaining hole 1 d. Second axial keeps the setting of hole 1d on pipe wall 1a, an axial is spacing when being used for carrying out the assembly of waterproof part 2, after linking arm 2c and second axial keep hole 1d joint and butt cooperation, make waterproof part 2 can't be along the up-and-down drunkenness of the axial direction of pipe wall 1a, because pipe wall 1a has second axial keep hole 1d and the one end tip that is separated by second axial keep hole 1d inserts two butt joint grooves 2b just, waterproof part 2 can't rotate along the radial direction of pipe wall 1a, be connected between waterproof part 2 and the terminal body 1 more stably.

The inner sleeve 2d can seal one end of the terminal body 1 to separate the terminal body 1 from the electronic device, so that water is prevented from entering the electronic device from the inside of the connecting terminal, and the waterproof effect is achieved.

Referring to fig. 4, the two end edges of the outer sleeve 2a in the axial direction are provided with mounting protrusions 2a1, the two mounting protrusions 2a1 are used for assembling the sealing ring, the inner sleeve 2d and the sealing ring are arranged to meet the waterproof requirement, and the connecting device meets the national standard GB-T20234.1-2015 part 1 of the connecting device for conductive charging of electric vehicles: general requirements.

Referring to fig. 1, 2, 3, 4 and 5, a wire pressing portion 3 is disposed on an end portion of the pipe wall 1a having the second axial retaining hole 1d, the wire pressing portion 3 extends along an axial direction of the pipe wall 1a, the wire pressing portion 3 includes a pair of unfolding connecting arms 3a, the connecting arms 3a protrude along a radial direction of the pipe wall 1a, the connecting arms 3a are connected with the end portion of the pipe wall 1a through guiding walls 3b, and a plurality of circles of wire pressing grooves 3c are disposed on the connecting arms 3 a. The crimping portion 3 is used for electrical connection with an external element such as a flexible wire.

Referring to fig. 8 and 11, a tube wall 1a has a first joint wall 1a2 and a second joint wall 1a4 which are oppositely disposed, the first joint wall 1a2 and the second joint wall 1a4 are oppositely disposed in the circumferential direction and enclose a tube cavity 1a1, an abutment port 1a3 is inwardly recessed on the first joint wall 1a2, an abutment protrusion 1a5 is outwardly protruded on the second joint wall 1a4, the abutment protrusion 1a5 extends into the abutment port 1a3 and is in snap fit with the abutment port 1a3, so as to realize the blocking fit between the first joint wall 1a2 and the second joint wall 1a4, the abutment protrusion 1a5 is set to be an isosceles trapezoid, the width of the abutment port 1a3 corresponding to the opening is gradually reduced, that is the longer bottom edge of the abutment protrusion 1a5 abuts against the innermost end of the abutment port 1a 3. The integrally formed terminal body 1 and the line pressing part 3 can circumferentially support the whole terminal body 1, and prevent the cracking and deformation of the seam on the pipe wall 1a

Referring to fig. 5, 6, 7, 8, 9 and 10, a tube cavity 1a1 is provided in the tube wall 1a, the inner sleeve 2d is sleeved in the tube cavity 1a1, an end portion of the tube wall 1a far away from the crimping portion 3 is detachably connected with a retaining ring portion 4, the retaining ring portion 4 is coaxial with the tube wall 1a, and the retaining ring portion 4 is provided in the tube cavity 1a 1. Specifically, retaining ring portion 4 includes guiding protrusion 4a and buckle 4b, the one end tip that second axial keeps away from hole 1d is inwards sunken to be equipped with first axial and keeps in hole 1c to pipe wall 1a, the edge of retaining ring portion 4 extends along the axial direction of pipe wall 1a and is equipped with guiding protrusion 4a, guiding protrusion 4a and first axial keep in hole 1c joint cooperation, the edge of retaining ring portion 4 is equipped with at least one buckle 4b that extends the setting along the radial direction of pipe wall 1a, set up the radial keeping hole 1b that equals with buckle 4b quantity on the outer wall of pipe wall 1a, buckle 4b and radial keeping in hole 1b joint cooperation. The setting of first axial holding hole 1c on pipe wall 1a, an axial is spacing when being used for carrying out the assembly of retaining ring portion 4, buckle 4b has certain elasticity, can the joint enter into corresponding radial holding hole 1b, carry out the ascending spacing of retaining ring portion 4 radial direction between buckle 4b and the radial holding hole 1b, make retaining ring portion 4 unable at lumen 1a1 internal rotation, after buckle 4b and radial holding hole 1b joint cooperation again first axial holding hole 1c and the cooperation of the butt between the guide protrusion 4a, make retaining ring portion 4 unable up-and-down drunkenness along the axial direction of pipe wall 1a, the connection between retaining ring portion 4 and the terminal body 1 is more stable.

Referring to fig. 6, 7 and 8, a contact connecting member 5 is detachably connected between the inner sleeve 2d and the retainer portion 4, two ends of the contact connecting member 5 in the axial direction are respectively abutted against the ends of the inner sleeve 2d and the retainer portion 4, and the contact connecting member 5 is an elastic deformation structure with a deformable radial dimension. For ease of assembly, the contact link 5 is provided in an elastically deformable configuration with a deformable radial dimension, so as to facilitate mounting between the tube wall 1a and the collar portion 4, and when the contact link 5 is in a free state without being subjected to an external force, the radial dimension of the contact link 5 is greater than or equal to the radial dimension of the tube wall 1a, so that the stable contact connection between the contact link 5 and the tube cavity 1a1 can be promoted after the contact link 5 is fitted into the tube cavity 1a1, and the axial stability of the contact link 5 mounted between the tube wall 1a and the collar portion 4 can be promoted.

Referring to fig. 12, the contact connecting member 5 is provided with at least one elastic sheet 5a, the tube cavity 1a1 is used for inserting the mating terminal, and the elastic sheets 5a radially abut against the inner wall of the tube wall 1a and the outer wall of the mating terminal respectively to form a multi-point electrical contact.

Referring to fig. 7, 8 and 9, the two sides of each buckle 4b are provided with an adjusting groove 4c, when the contact connecting piece 5 is seriously worn, the contact finger needs to be replaced, the adjusting grooves 4c are arranged to facilitate squeezing the contact connecting piece 5, so that the contact connecting piece 5 and the elastic piece 5a are elastically deformed, and thus the contact connecting piece 5 can be easily separated from the pipe wall 1a along the adjusting grooves 4c, the whole terminal body 1 does not need to be cut and replaced, and the retaining ring portion 4 does not need to be removed, it can be understood that when the contact connecting piece 5 and/or the retaining ring portion 4 need to be replaced, the retaining ring portion 4 can be directly removed first, and then the contact connecting piece 5 can be removed and replaced.

Claims (10)

1. The utility model provides a connecting terminal, a serial communication port, including terminal body (1), terminal body (1) is the stamping workpiece, and terminal body (1) sets up to tubulose and has axially extended pipe wall (1a), and terminal body (1) is used for and joins in marriage terminal grafting cooperation and electric connection each other, is equipped with waterproof spare (2) on terminal body (1), waterproof spare (2) with terminal body (1) coaxial arrangement and with terminal body (1) fixed connection, waterproof spare (2) including outer sleeve (2a), butt joint groove (2b), linking arm (2c) and inner skleeve (2d), outer sleeve (2a) cover is established in pipe wall (1a) outside, inner skleeve (2d) cover is established inside pipe wall (1a), coaxial setting between outer sleeve (2a) and inner skleeve (2d), and connect through linking arm (2c) between outer sleeve (2a) and inner skleeve (2d), two butt joint grooves (2b) are formed between the outer sleeve (2a) and the inner sleeve (2d), the pipe wall (1a) passes through the butt joint grooves (2b), and the two butt joint grooves (2b) are separated by the inner sleeve (2 d).

2. A connecting terminal according to claim 1, characterized in that one end of the tube wall (1a) in the axial direction is recessed inwardly with a second axial retaining hole (1d), the connecting arm (2c) is snap-fitted into the second axial retaining hole (1d), the abutment groove (2b) is adapted for the insertion of the end of the tube wall (1a) having the second axial retaining hole (1d), and the outer sleeve (2a) is fitted over the end of the tube wall (1a) having the second axial retaining hole (1 d).

3. A connection terminal according to claim 2, wherein mounting projections (2a1) are provided at both end edges in the axial direction of the outer sleeve (2a), and a seal ring is fitted between the two mounting projections (2a 1).

4. A connecting terminal according to claim 3, characterized in that the end of the tube wall (1a) having the second axial retaining hole (1d) is provided with a crimping portion (3).

5. A connecting terminal according to claim 4, characterized in that the crimping portion (3) extends in the axial direction of the tube wall (1a), the crimping portion (3) comprises a pair of unfolded connecting arms (3a), the connecting arms (3a) protrude in the radial direction of the tube wall (1a), the connecting arms (3a) are connected to the end of the tube wall (1a) by means of guide walls (3b), and the connecting arms (3a) are provided with a plurality of winding grooves (3 c).

6. A connecting terminal according to claim 5, characterized in that a tube cavity (1a1) is arranged in the tube wall (1a), the inner sleeve (2d) is sleeved in the tube cavity (1a1), a stop ring part (4) is detachably connected to one end part of the tube wall (1a) far away from the crimping part (3), the stop ring part (4) is arranged coaxially with the tube wall (1a), and the stop ring part (4) is arranged in the tube cavity (1a 1).

7. A connecting terminal according to claim 6, characterized in that the retaining ring portion (4) comprises a guide protrusion (4a) and a buckle (4b), the end of the pipe wall (1a) far away from the second axial retaining hole (1d) is provided with a first axial retaining hole (1c) in an inward recessed manner, the edge of the retaining ring portion (4) is provided with the guide protrusion (4a) extending along the axial direction of the pipe wall (1a), the guide protrusion (4a) is in clamping fit with the first axial retaining hole (1c), the edge of the retaining ring portion (4) is provided with at least one buckle (4b) extending along the radial direction of the pipe wall (1a), the outer wall of the pipe wall (1a) is provided with radial retaining holes (1b) with the same number as the buckles (4b), and the buckles (4b) are in clamping fit with the radial retaining holes (1 b).

8. A connecting terminal according to claim 7, characterized in that a contact connecting piece (5) is detachably connected between the inner sleeve (2d) and the retainer ring portion (4), both ends of the contact connecting piece (5) in the axial direction are respectively abutted to the ends of the inner sleeve (2d) and the retainer ring portion (4), the contact connecting piece (5) is an elastic deformation structure with a deformable radial dimension, at least one elastic sheet (5a) is arranged on the contact connecting piece (5), the mating terminal is inserted into the tube cavity (1a1), and the elastic sheets (5a) are respectively abutted to the inner wall of the tube wall (1a) and the outer wall of the mating terminal in the radial direction to form a multi-point electrical contact.

9. A connecting terminal according to claim 8, characterized in that each catch (4b) is provided with adjustment grooves (4c) on both sides.

10. A connection terminal according to claim 9, wherein the tube wall (1a) has a first joint wall (1a2) and a second joint wall (1a4) opposite to each other, the first joint wall (1a2) and the second joint wall (1a4) are opposite to each other in circumferential direction and enclose a tube cavity (1a1), the first joint wall (1a2) is provided with an abutting joint (1a3) in an inward concave manner, the second joint wall (1a4) is provided with an abutting joint projection (1a5) in an outward convex manner, the abutting joint projection (1a5) extends into the abutting joint (1a3) and is in snap fit with the abutting joint (1a3), the abutting joint projection (1a5) is provided in an isosceles trapezoid shape, and the width of the opening of the abutting joint (1a3) is gradually reduced.

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