CN212935076U - Terminal connection structure of wires with different wire diameters - Google Patents

Abstract

The utility model discloses a terminal connecting structure of wires with different wire diameters, which relates to the technical field of wire connection and comprises a first terminal connected with a first wire; the first terminal comprises a first crimping area for crimping a first lead and a plugging area for connecting a plugging sheet of the second terminal; wherein the second terminal is used for connecting a second wire; the insertion area is in interference fit with the insertion sheet of the second terminal; the first crimping area is connected with the plugging area through a transition area. Aiming at the technical problem that the connection of the wires with different wire diameters is unreliable, the reliable connection of the wires with different wire diameters can be realized.

Description

Terminal connection structure of wires with different wire diameters

Technical Field

The utility model relates to a wire connection technical field, concretely relates to terminal connection structure of different line footpath wires.

Background

During the charging process of the new energy automobile through the charging gun, the ground wire (PE wire) must be reliably grounded, namely, the grounding aiming at the safety of people and equipment is called protective grounding, and the grounding is used for protecting the normal operation of the equipment (system) or ensuring that the equipment (system) reliably and correctly realizes the function, namely functional grounding. The grounding pin of the charging gun is therefore connected not only to the ground line (PE line) in the power supply line, but also to the associated signal or control line. The difference of the wire diameters of the ground wire and the signal wire is large, and the direct parallel connection on the grounding contact pin is easy to cause the conditions of unreliable connection, inconvenient insertion, low automation degree and the like.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The unreliable technical problem is connected to the wire to different line footpaths, the utility model provides a terminal connection structure of different line footpaths wire can realize that the wire in different line footpaths is connected reliably.

2. Technical scheme

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

a terminal connecting structure of wires with different wire diameters comprises a first terminal connected with a first wire; the first terminal comprises a first crimping area for crimping a first lead and a plugging area for connecting a plugging sheet of the second terminal; wherein the second terminal is used for connecting a second wire; the insertion area is in interference fit with the insertion sheet of the second terminal; the first crimping area is connected with the plugging area through a transition area.

Optionally, the first crimping region comprises a first conductor crimping region and a first insulation layer crimping region which are connected in sequence; the first insulating layer crimping area is used for crimping the first lead containing a first insulating layer; the first conductor crimping zone is for crimping a first conductor of a first wire.

Optionally, the insertion area includes an arc piece and an insertion piece, and two arc pieces are symmetrically arranged on two side edges of the insertion piece respectively; the inserting holes are formed between the two arc-shaped pieces and the inserting pieces and are in interference fit with the inserting pieces of the second terminals; the insertion sheet is connected with the transition area.

Optionally, the first conductor crimping region includes a first conductor crimping pad and a first conductor crimping piece; two sides of the first conductor crimping piece are respectively and symmetrically provided with a first conductor crimping pad for crimping the first conductor; the first conductor crimping piece is connected with the transition region.

Optionally, the first insulation layer crimping region includes a first insulation layer crimping pad and a first insulation layer crimping piece; two sides of the first insulating layer compression joint sheet are respectively and symmetrically provided with a first insulating layer compression joint pad; the first insulating layer crimping piece is connected with the first conductor crimping piece.

Terminal connection structure of different wire diameters wire a terminal connection structure of different wire diameters wire according to any one of the above, including a second terminal for connecting a second wire; the second terminal comprises a contact pin, a second crimping area for crimping a second lead and an insert for connecting the splicing area of the first terminal; wherein, contact pin, second crimping district and inserted sheet are connected gradually.

Optionally, the second crimping zone comprises a second conductor crimping zone and a second insulation crimping zone; the second conductor crimping zone is used for crimping a second conductor; the second insulation layer crimping zone is used for crimping a second wire containing a second insulation layer.

Optionally, the insertion area includes an arc piece and an insertion piece, and two arc pieces are symmetrically arranged on two side edges of the insertion piece respectively; the two arc-shaped pieces and the insertion pieces form the insertion holes, and the insertion holes are in interference fit with the insertion pieces of the second terminals.

Optionally, the second conductor crimping region includes a second conductor crimping pad and a second conductor crimping piece; two sides of the second conductor crimping piece are respectively and symmetrically provided with a second conductor crimping pad for crimping a second conductor; the second conductor crimping piece is connected with the contact pin.

Optionally, the second insulation layer crimping region includes a second insulation layer crimping pad and a second insulation layer crimping piece; two sides of the second insulating layer crimping piece are respectively and symmetrically provided with a second insulating layer crimping pad; the second insulating layer crimping piece is connected with the second conductor crimping area and the inserting piece.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

the terminal connecting structure for the wires with different wire diameters, provided by the embodiment of the application, can realize the connection between the wires with different wire diameters, is reliable in connection and can realize quick plugging; particularly, the problem that the parallel connection of the grounding wire and the signal wire is unreliable is solved, the quick plugging and unplugging can be realized, the adjustment and the change of the structure and the design are convenient, and the automation degree of a production line is improved.

Drawings

Fig. 1 is a schematic structural diagram of a terminal connection structure of wires with different wire diameters according to an embodiment of the present invention;

fig. 2 is a second schematic structural view of a terminal connection structure of wires with different wire diameters according to an embodiment of the present invention;

fig. 3 is a third schematic structural view of a terminal connection structure of wires with different wire diameters according to an embodiment of the present invention;

fig. 4 is a fourth schematic structural view of a terminal connection structure of wires with different wire diameters according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a butt-joint explosion of a terminal connection structure of wires with different wire diameters according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating a butt joint of a terminal connection structure of wires with different wire diameters according to an embodiment of the present invention;

fig. 7 is a second schematic view illustrating a butt joint structure of a terminal connection structure of wires with different wire diameters according to an embodiment of the present invention.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "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 and operated in a specific orientation, 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. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.

Example 1

With reference to fig. 1-7, a terminal connecting structure for wires of different wire diameters includes a first terminal connected to a first wire 15; the first terminal comprises a first crimping area for crimping the first lead 15 and a plug area 11 for connecting a plug sheet 24 of the second terminal; wherein the second terminal is for connecting a second wire 25; the plugging area 11 is in interference fit with the inserting sheet 24 of the second terminal; the first crimping zone is connected to the plug-in zone 11 via a transition zone 12.

The reliable connection relation between the first terminal and the second terminal is realized through the interference fit between the plugging area 11 of the first terminal and the contact pin of the second terminal, and the first lead 15 is connected with the first terminal; the second lead 25 is connected with the second terminal, so that the reliable connection between the first lead 15 and the second lead 25 can be realized, and the reliable connection between leads with different wire diameters can be realized.

Example 2

With reference to fig. 1 to 7, the terminal connection structure of the wire with different wire diameters of the present embodiment can be improved as follows compared with the technical solution of embodiment 1: the first crimping region includes a first conductor crimping region 13 and a first insulation crimping region 14 connected in series; the first insulation crimping region 14 is for crimping the first wire 15 including the first insulation 152; the first conductor crimping zone 13 is for crimping the first conductor 151 of the first wire 15.

The first conductive wire 15 includes a first conductor 151, and a first insulating layer 152 located outside the first conductor 151; crimping the first conductor 151 to the first conductor crimping region 13 effects electrical connection of the first wire 15 to the first terminal; the first wire 15 including the first insulating layer 152 is crimped to the first insulating layer crimping region 14, so that the first wire 15 is reliably connected to the first terminal, and the first wire 15 is prevented from being detached from the first terminal.

Example 3

With reference to fig. 1-7, the terminal connection structure of the wire with different wire diameters of the present embodiment can be improved as follows compared with the technical solutions of embodiments 1 or 2: the splicing region 11 comprises an arc-shaped piece 111 and a splicing piece 112, and two arc-shaped pieces 111 are symmetrically arranged on two side edges of the splicing piece 112 respectively; the inserting hole 113 is formed between the two arc-shaped pieces 111 and the inserting piece 112, and the inserting hole 113 is in interference fit with the inserting piece 24 of the second terminal; the plug tab 112 is connected to the transition region 12.

The insert 24 of the second terminal is in interference fit with the insertion hole 113 of the insertion area 11 of the first terminal, so that the first terminal is reliably connected with the second terminal, and the second wires 25 with different wire diameters are reliably connected with the first wires 15.

Example 4

With reference to fig. 1 to 7, the terminal connection structure of the wire with different wire diameters of the present embodiment can be improved as follows compared with any one of the technical solutions of embodiments 1 to 3: the first conductor crimping region 13 includes a first conductor crimping pad 131 and a first conductor crimping piece 132; two sides of the first conductor crimping piece 132 are respectively and symmetrically provided with a first conductor crimping pad 131 for crimping the first conductor 151; the first conductor crimping pieces 132 are connected to the transition region 12. Referring to fig. 1 to 3, the first conductor 151 is crimped onto the first conductor crimping piece 132 by the first conductor crimping pad 131, so that the first wire 15 is reliably connected to the first conductor crimping region 13.

Example 5

With reference to fig. 1 to 7, the terminal connection structure of the wire with different wire diameters of the present embodiment can be improved as follows compared with any one of the technical solutions of embodiments 1 to 4: the first insulation layer compression bonding region 14 includes a first insulation layer compression bonding pad 141 and a first insulation layer compression bonding sheet 142; two sides of the first insulating layer pressing sheet 142 are symmetrically provided with a first insulating layer pressing pad 141; the first insulation crimping pieces 142 are connected to the first conductor crimping pieces 132. Referring to fig. 1 to 3, the first insulating layer bonding pad 141 is formed by pressing the first conductive wire 15 including the first insulating layer 152 onto the first insulating layer bonding sheet 142 of the first insulating layer bonding region 14, so as to reliably connect the first conductive wire 15 to the first insulating layer bonding region 14.

Example 6

With reference to fig. 1 to 7, the terminal connection structure of the wire with different wire diameters of the present embodiment can be improved as follows compared with any one of the technical solutions of embodiments 1 to 5: a terminal connection structure of wires of different wire diameters, the terminal connection structure of wires of different wire diameters according to any one of embodiments 1 to 5, comprising a second terminal for connecting a second wire 25; the second terminal comprises a pin 21, a second crimping area for crimping a second lead 25 and a plug-in sheet 24 for connecting the plug-in area 11 of the first terminal; wherein, the contact pin 21, the second crimping area and the insert 24 are connected in sequence.

Example 7

With reference to fig. 1 to 7, the terminal connection structure of the wire with different wire diameters of the present embodiment can be improved as follows compared with any one of the technical solutions of embodiments 1 to 6: the second crimping zone includes a second conductor crimping zone 22 and a second insulation crimping zone 23; the second conductor crimping region 22 is for crimping a second conductor 251; the second insulation crimp zone 23 is for crimping the second wire 25 including the second insulation 252. The second conductor 25 is reliably connected to the second crimping zone by the second conductor crimping zone 22 and the second insulation crimping zone 23.

Example 8

With reference to fig. 1 to 7, the terminal connection structure of the wire with different wire diameters of the present embodiment can be improved as follows compared with any one of the technical solutions of embodiments 1 to 7: the splicing region 11 comprises an arc-shaped piece 111 and a splicing piece 112, and two arc-shaped pieces 111 are symmetrically arranged on two side edges of the splicing piece 112 respectively; the insertion hole 113 is formed between the two arc-shaped pieces 111 and the insertion piece 112, and the insertion hole 113 is in interference fit with the insertion piece 24 of the second terminal.

Example 9

With reference to fig. 1 to 7, the terminal connection structure of the wire with different wire diameters of the present embodiment can be improved as follows compared with any one of the technical solutions of embodiments 1 to 8: the second conductor crimping region 22 includes a second conductor crimping pad 221 and a second conductor crimping piece 222; two sides of the second conductor crimping piece 222 are respectively and symmetrically provided with a second conductor crimping pad 221 for crimping the second conductor 251; the second conductor crimping piece 222 is connected to the pin 21. The second conductor 251 is crimped onto the second conductor crimping piece 222 by the second conductor crimping pad 221, so that the second conductor 251 and the second conductor crimping region 22 are reliably connected. The second conductor crimping piece 222 is uniformly provided with strip-shaped holes 223, so that a heat dissipation effect is achieved.

Example 10

With reference to fig. 1 to 7, the terminal connection structure of the wire with different wire diameters of the present embodiment can be improved as follows compared with any one of the technical solutions of embodiments 1 to 9: the second insulation layer crimping region 23 includes a second insulation layer crimping pad 231 and a second insulation layer crimping piece 232; two sides of the second insulating layer pressing sheet 232 are symmetrically provided with a second insulating layer pressing pad 231 respectively; the second insulation crimp tabs 232 are connected to both the second conductor crimp zone 22 and the insert 24. The second wire 25 including the second insulation layer 252 is pressed against the second insulation layer pressing region 23 through the second insulation layer pressing pad 231, so as to achieve reliable connection between the second wire 25 and the second insulation layer pressing region 23.

In a specific embodiment, the first terminal is a quick-connect terminal, and the first conducting wire 15 is a signal wire or a control wire; the second terminal is a grounding contact pin, and the contact pin of the second terminal is grounded; the second wire 25 is a ground wire; the signal wire or the control wire and the ground wire can be reliably grounded, and can be quickly plugged and unplugged when necessary, the manual plugging and unplugging can be realized in the design stage, the automatic plugging and unplugging of a machine can be realized in the mass production stage, various combination modes are realized, the adjustment and the change of the design and the structure are facilitated, and the automation degree of the production line is improved. The plug-in and plug-out device is manually plugged in the design stage, and can realize automatic plug-in of the machine in the mass production stage. Although interference fit is adopted, the interference magnitude is small, plugging can be achieved by applying small plugging force, and the purpose of interference fit is to ensure reliable connection, meet the requirements of contact resistance and avoid loosening.

When the signal line of the charging gun is connected with the ground wire, the tail end of the Faston terminal (quick-connect terminal) is in compression joint with the signal line, the tail end of the grounding contact pin is in compression joint with the ground wire, after the front two parts are in compression joint reliably, the front end insertion area of the Faston terminal (quick-connect terminal) is in insertion interference connection with the insertion sheet at the tail end of the grounding contact pin, the signal line and the ground wire are connected and reliably grounded, and when the design or structure is changed, the signal line and the ground wire can be quickly separated, other combination modes are realized, in the process of mass production, the automation degree of the production line is improved, and the production efficiency is effectively improved. Simultaneously has the following technical effects:

1. the problem that the ground wire and the signal wire are not reliably connected is solved through the structure, the problem that protective grounding and functional grounding are not synchronously realized is avoided, and safety and reliability in the charging process of the charging gun are ensured.

2. The insertion area at the front end of the Faston terminal is connected with the rectangular area (insertion sheet) at the tail end of the grounding insertion pin through insertion interference, and when the design or structure is changed, the Faston terminal can be quickly separated, so that other combination modes are realized.

3. This simple structure, connecting terminal adopt the universalization design, and structure assembly simple process, degree of automation is higher, is favorable to nimble application, can be referred to by similar product.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (10)

1. A terminal connecting structure of wires with different wire diameters is characterized by comprising a first terminal connected with a first wire; the first terminal comprises a first crimping area for crimping a first lead and a plugging area for connecting a plugging sheet of the second terminal; wherein the content of the first and second substances,

the second terminal is used for connecting a second wire;

the insertion area is in interference fit with the insertion sheet of the second terminal;

the first crimping area is connected with the plugging area through a transition area.

2. A terminal connection structure of wires of different wire diameters according to claim 1, wherein the first crimping region includes a first conductor crimping region and a first insulation crimping region which are connected in series; the first insulating layer crimping area is used for crimping the first lead containing a first insulating layer; the first conductor crimping zone is for crimping a first conductor of a first wire.

3. The structure of claim 1, wherein the insertion area includes an arc-shaped piece and an insertion piece, and two arc-shaped pieces are symmetrically arranged on two side edges of the insertion piece; an inserting hole is formed between the two arc-shaped pieces and the inserting piece, and the inserting hole is in interference fit with the inserting piece of the second terminal; the insertion sheet is connected with the transition area.

4. The terminal connection structure of a different wire diameter wire according to claim 2, wherein the first conductor crimping region includes a first conductor crimping pad and a first conductor crimping piece; two sides of the first conductor crimping piece are respectively and symmetrically provided with a first conductor crimping pad for crimping the first conductor; the first conductor crimping piece is connected with the transition region.

5. The terminal connecting structure of different wire diameter wires according to claim 2, wherein the first insulation layer crimping region comprises a first insulation layer laminating pad and a first insulation layer crimping piece; two sides of the first insulating layer compression joint sheet are respectively and symmetrically provided with a first insulating layer compression joint pad; the first insulating layer crimping piece is connected with the first conductor crimping piece.

6. A terminal connection structure of wires of different wire diameters, characterized in that the terminal connection structure of wires of different wire diameters according to any one of claims 1 to 5 comprises a second terminal for connecting a second wire; the second terminal comprises a contact pin, a second crimping area for crimping a second lead and an insert for connecting the splicing area of the first terminal; wherein, contact pin, second crimping district and inserted sheet are connected gradually.

7. A terminal connection structure of wires of different wire diameters according to claim 6, wherein the second crimping region includes a second conductor crimping region and a second insulation crimping region; the second conductor crimping zone is used for crimping a second conductor; the second insulation layer crimping zone is used for crimping a second wire containing a second insulation layer.

8. The structure of claim 6, wherein the insertion area comprises an arc-shaped piece and an insertion piece, and two arc-shaped pieces are symmetrically arranged on two side edges of the insertion piece respectively; two the arc piece with form the spliced eye between the spliced eye, spliced eye and the inserted sheet interference fit of second terminal.

9. The terminal connecting structure of wires of different wire diameters as claimed in claim 7, wherein said second conductor crimping region includes a second conductor crimping pad and a second conductor crimping piece; two sides of the second conductor crimping piece are respectively and symmetrically provided with a second conductor crimping pad for crimping a second conductor; the second conductor crimping piece is connected with the contact pin.

10. The terminal connecting structure of different wire diameter wires as claimed in claim 7, wherein the second insulation layer crimping region comprises a second insulation layer crimping pad and a second insulation layer crimping piece; two sides of the second insulating layer crimping piece are respectively and symmetrically provided with a second insulating layer crimping pad; the second insulating layer crimping piece is connected with the second conductor crimping area and the inserting piece.

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