阅读说明：本技术 电线的连接结构及线束的制造方法 (The connection structure of electric wire and the manufacturing method of harness ) 是由 鹫尾和纮 宫本贤次 川田祐司 于 2018-04-18 设计创作，主要内容包括：线束(1)具备：电线(10),其具备由多根金属线材构成的芯线(11)和将芯线(11)包覆的绝缘包覆层(12)；单芯线(20),其具备主体部(21)和从主体部(21)延伸并覆盖在芯线(11)上的电线固定部(23)；以及接头端子(30),其具备配置芯线(11)的底板部(31)和从底板部(31)延伸并从电线固定部(23)的外侧卷绕的一对线筒部(32)。根据这样的结构,因为在芯线(11)与线筒部(32)之间夹着单芯线(20)的电线固定部(23),所以能够避免芯线(11)从一对线筒部(32)的对接部分伸出。(Harness (1) has: electric wire (10), the insulating coating (12) for having the core wire (11) being made of more wires materials and coating core wire (11)；Single-core line (20), the electric wire fixing segments (23) for having main part (21) and extending from main part (21) and being covered on core wire (11)；And tab terminal (30), a pair of of the spool portion (32) for having the base plate (31) of configuration core wire (11) and extending from base plate (31) and being wound from the outside of electric wire fixing segments (23).According to this structure, because clipping the electric wire fixing segments (23) of single-core line (20) between core wire (11) and spool portion (32), it can be avoided core wire (11) and stretched out from the butted part of a pair of of spool portion (32).)

1. a kind of connection structure of electric wire, has:

Electric wire, the insulating coating for having the core wire being made of more wire rods and coating the core wire；

Conductor is connected, has main part and electric wire fixing segments, the electric wire fixing segments extend from the main part, and with covering Mode on the core wire configures；And

Crimp type terminal has bottom wall part and a pair of of canister portion, configures the core wire in the bottom wall part, and the pair of canister portion is from institute Bottom wall part extension is stated, and is wound from the outside of the electric wire fixing segments.

2. the connection structure of electric wire according to claim 1, wherein the electric wire fixing segments have thick wall portion, the thickness For wall portion along the circumferentially extending of the core wire, thickness is bigger than the thickness of other parts.

3. a kind of manufacturing method of harness is connected electric wire and connection conductor using crimp type terminal,

The insulating coating that the electric wire has the core wire being made of more wire rods and coats the core wire,

The connection conductor has the electric wire fixing segments of main part and the plate extended from the main part,

A pair of of canister portion that the crimp type terminal has the bottom wall part for configuring the core wire and extends from the bottom wall part,

The manufacturing method of the harness includes:

The electric wire fixing segments are arranged after by core wire setting to the bottom wall part in setting process on the core wire；And

The pair of canister portion is wound in described by crimping process after the setting process on the outside of the electric wire fixing segments Core wire.

Technical field

It is related to the connection structure of electric wire and the manufacturing method of harness by the technology of this disclosure.

Background technique

In the past, it is known that the connection structure for the electric wire for connecting pole line with twisted wire.Pole line has conductor, and conductor is formed as Flat plate body.On the other hand, twisted wire has the conductor for being twisted a plurality of wire rod.By the conductor and pole that make twisted wire The conductor of line be overlapped and carry out it is ultrasonic bonding, to form connecting portion.

Summary of the invention

Subject to be solved by the invention

But as having following problem in the above-mentioned joint method using ultrasonic wave: in twisted wire by stretching upwards In the case of, the conductor of twisted wire is easy to be pulled off from the conductor of pole line.But using a pair of of cylinder the conductor of twisted wire is being involved in In crimping, be easy to happen wire rod stretch out the case where, it is possible to the wire rod of stretching and other electrical contacts etc. and occur between circuit Short circuit.

Solution for solving the problem

Have electric wire by the connection structure of the electric wire of this disclosure, have the core wire that is made of more wire rods and The insulating coating that the core wire is coated；Connect conductor, have a main part and electric wire fixing segments, the electric wire fixing segments from The main part extends, and is configured in the mode being covered on the core wire；And crimp type terminal, have bottom wall part and a pair Canister portion configures the core wire in the bottom wall part, and the pair of canister portion extends from the bottom wall part, and from the electric wire fixing segments Outside winding.

It, can because clipping the electric wire fixing segments of connection conductor between core wire and canister portion according to above-mentioned composition Core wire is avoided to stretch out from the butted part of a pair of of canister portion.

Or, the electric wire fixing segments have thick wall portion, and the thick wall portion is along the core in such a configuration The circumferentially extending of line, thickness are bigger than the thickness of other parts.

Have the structure of thick wall portion according to electric wire fixing segments, becomes across the part of thick wall portion than other parts in core wire The compressed high compression portion of high compression ratio.In high compression portion, compressed by core wire with high compression rate, thus in the table of core wire The oxidation overlay film that face is formed is destroyed, and the newly-generated surface of metal is exposed.Pass through the newly-generated surface and crimp type terminal and electric wire Fixed part contact, so as to reduce core wire and connect the contact resistance between conductor and crimp type terminal.On the other hand, at other Part, core wire is compressed with the compressing force lower than high compression portion, therefore can prevent the broken string of core wire.

In this way, being easy to happen the case where core wire stretches out in the high compression portion there are in the case where high compression portion in core wire.For Avoid the situation, it is preferred to use clip the structure of electric wire fixing segments between core wire and canister portion.

In addition, the manufacturing method of the harness by this disclosure, is connected electric wire and connection conductor using crimp type terminal It connects, the insulating coating that the electric wire has the core wire being made of more wire rods and coats the core wire, the connection conductor Have the electric wire fixing segments of main part and the plate extended from the main part, the crimp type terminal has the configuration core wire Bottom wall part and a pair of of the canister portion extended from the bottom wall part, the manufacturing method of the harness includes: setting process, is set by core wire After setting in the bottom wall part, the electric wire fixing segments are set on the core wire；And crimping process, in the setting process Afterwards, the pair of canister portion is wound in the core wire on the outside of the electric wire fixing segments.

According to this structure, because in crimping process, electric wire fixing segments are clipped between canister portion and core wire, so energy Core wire is enough avoided to stretch out from the butted part of a pair of of canister portion.

Invention effect

According to the connection structure of the electric wire by this disclosure and the manufacturing method of harness, core wire can be avoided from one The butted part of canister portion is stretched out.

Detailed description of the invention

Fig. 1 is the perspective view of the harness of embodiment.

Fig. 2 is the line A-A cross-sectional view of Fig. 1.

Fig. 3 is the line B-B cross-sectional view of Fig. 1.

Fig. 4 is the perspective view of the tab terminal of embodiment.

Fig. 5 is the perspective view of the single-core line of embodiment.

Fig. 6 is the top view of the single-core line of embodiment.

Fig. 7 is the main view of the single-core line of embodiment.

Fig. 8 is the side view of the single-core line of embodiment.

Fig. 9 is perspective view the case where showing in embodiments by electric wire and single-core line setting to tab terminal.

Figure 10 is section view the case where showing in embodiments by the setting of tab terminal, electric wire and single-core line to crimping jig Figure.

Figure 11 is shown in the crimping of the tab terminal carried out in embodiments using crimping jig, core wire and single-core line The cross-sectional view of the case where way.

Figure 12 is the crimping completion for showing the tab terminal carried out in embodiments using crimping jig, core wire and single-core line When the case where cross-sectional view.

Specific embodiment

On one side referring to Fig.1~Figure 12 while be directed at embodiment and be illustrated.As shown in Figure 1, the electric wire of present embodiment Connection structure is to be connected electric wire 10 and single-core line 20 (being equivalent to connection conductor) using tab terminal 30 (being equivalent to crimp type terminal) A part of harness 1 made of connecing.

Electric wire 10 is the aluminium electric wire of known features, is had: core wire 11 is made of twisted wire, the twisted wire by by aluminium or More wire rods made of aluminum alloy are twisted；And plastic insulating coating 12, which is coated.Such as figure Shown in 1, in the terminal part of the electric wire 10, insulating coating 12 is stripped off and exposes core wire 11.

Single-core line 20 is aluminium or aluminium alloy system, as shown in figure 5, having in the rodlike main part 21 of filled circles and passing through company The electric wire fixing segments 23 that knot 22 is connect with one end of main part 21.Linking part 22 is from one end of main part 21 along main part 21 axial direction extends, and electric wire fixing segments 23 extend end to the side opposite with main part 21 on edge from linking part 22 Main part 21 axial direction extend.

In the state that single-core line 20 is the monomer before connecting with core wire 11, electric wire fixing segments 23 are in along main part The mode of center portion protrusion between a pair of of lateral margin that 21 axial direction extends is bent into the plate of semi-circular cylindrical, in Side becomes the core wire contact surface 23F contacted with core wire 11.Electric wire fixing segments 23 have in the one end adjacent with linking part 22 The protrusion protruded inwardly, it is than the thickness of the remainder (thinner wall section 23A) of tip side bigger which becomes thickness Thick wall portion 23B.In other words, thick wall portion 23B electric wire fixing segments 23 be configured at 22 adjoining position of linking part, spread width The entire width in direction (direction vertical with the axis direction of main part 21) extends.Linking part 22 is circle of the one side from main part 21 Rod shape is gently deformed to the part that the semi-cylindrical shape of electric wire fixing segments 23 extends on one side.Such single-core line 20 can lead to It crosses and punch process is carried out to the top end part of metal bar and is formed.

As shown in Figure 1, the core wire 11 of electric wire 10 and the electric wire fixing segments 23 of single-core line 20 are pressed by tab terminal 30 It connects and is electrically connected.

Tab terminal 30 is formed by the plate of copper or copper alloy, is implemented on its surface tin plating.It is being crimped on core wire 11 In the state of preceding monomer, as shown in figure 4, tab terminal 30 is bent into the shape of U-shaped in the plate of rectangle.It is equivalent to U-shaped Bottom part become crimping when load core wire 11 base plate 31 (being equivalent to bottom wall part).It is continuous from the base plate 31 , the part of be equivalent to U-shaped two longitudinal edge become a pair of of the spool portion 32 (being equivalent to canister portion) configured opposed to each other.

In the state that tab terminal 30 is crimped on core wire 11 and electric wire fixing segments 23, as shown in Figures 2 and 3, configuring In covering electric wire fixing segments 23 on the core wire 11 in base plate 31, so that by core between electric wire fixing segments 23 and base plate 31 The encirclement of line 11 is entered, and further winds a pair of of spool portion 32 from the outside of electric wire fixing segments 23.In this way, becoming in core wire 11 and one To the state for clipping electric wire fixing segments 23 between spool portion 32.The extending direction since linking part 22 of electric wire fixing segments 23 (along the axial direction of main part 21) along the extending direction of core wire 11, thinner wall section 23A and thick wall portion 23B respectively along The circumferentially extending of core wire 11.

Each spool portion 32 bends to the arch to the side protrusion opposite with base plate 31.In more detail, two spool portions 32 are bent in mode close to each other, and are bent in a manner of the engaging-in core wire 11 of ora terminalis 32E towards base plate 31.Two spools Outside (with core wire 11 opposite one of electric wire fixing segments 23 of the top end part of the close ora terminalis 32E in portion 32 in electric wire fixing segments 23 Side) it is mutually butted.

The part covered in core wire 11 by the thick wall portion 23B of electric wire fixing segments 23 becomes than other parts (low compression portion 11L) the compressed high compression portion 11H of high compression ratio (referring to Fig. 2).In high compression portion 11H, core wire 11 is due to thick wall portion 23B Presence and compressed with high compression rate, thus core wire 11 surface formed oxidation overlay film be destroyed, expose the new of metal Generate surface.It is contacted by the newly-generated surface and tab terminal 30, thus in core wire 11 and single-core line 20 and tab terminal 30 Between obtain desired electrical connection.On the other hand, the part covered in core wire 11 by the thinner wall section 23A of electric wire fixing segments 23 (low compression portion 11L), core wire 11 is compressed with the compressing force lower than high compression portion 11H (referring to Fig. 3), therefore can inhibit core wire 11 Broken string.

In addition, schematically being illustrated on the whole in Fig. 2 and Fig. 3 to core wire 11.

An example of the process described below that the tab terminal 30 is crimped on to core wire 11 and electric wire fixing segments 23.

As shown in Figure 10, for tab terminal 30 to be crimped on to the crimping jig 40 of core wire 11 and electric wire fixing segments 23 by anvil Seat 41 and connector presser 42 are constituted.Anvil block 41 is the base station for loading tab terminal 30, and connector presser 42 is opposed to configure with anvil block 41, is pressed Connecing device 42 is to be bent it for clamping spool portion 32 between anvil block 41 at it and be wound up into core wire 11 and electric wire fixing segments 23 On component.

Anvil block 41 is metal base station, and as shown in Figure 10, upper surface becomes the mounting surface of mounting tab terminal 30 41P.Mounting surface 41P becomes the concave surface of the curved shape along base plate 31.

Connector presser 42 is to be opposed to the metal thick plate-like component of configuration in the top of anvil block 41 and anvil block 41, relative to Anvil block 41 is configured to longitudinal (direction vertical with mounting surface 41P).As shown in Figure 10, connector presser 42 is in the flexure plane with anvil block 41 Corresponding position is formed with recess, and has and a part of tab terminal 30 and anvil block 41 is accommodated in internal tunnel in crimping Road shape part, the inner wall of the tunnel-like part become the cylinder pressing wall 43 that a pair of of spool portion 32 is pressed in crimping.

When tab terminal 30 is crimped on core wire 11 and electric wire fixing segments 23 using the crimping jig 40, such as Figure 10 institute Show, first by 30 bond-allocating of tab terminal on the mounting surface 41P of anvil block 41.Then, core wire 11 is configured at base plate 31 On, electric wire fixing segments 23 are configured on core wire 11 in such a way that core wire contact surface 23F is towards the direction of core wire 11 further, are made It obtains and clips core wire 11 (setting process) between electric wire fixing segments 23 and base plate 31.In addition, in Figure 10~Figure 12, it is contemplated that Attached drawing is easy to viewing property, about single-core line 20, only schematically shows electric wire fixing segments 23.

Then, decline connector presser 42 towards tab terminal 30.Then, a pair of of spool portion 32 respectively presses 43 phase of wall with cylinder It touches, is gradually curved to the inside from ora terminalis 32E.When connector presser 42 further declines, as shown in FIG. 11 and 12, a pair of of spool Portion 32 is further curved to the inside, and is docked in a manner of engaging-in electric wire fixing segments 23.Electric wire fixing segments 23 are also according to spool portion 32 Curved shape, be bent in a manner of being wound up into core wire 11.In this way, tab terminal 30 is crimped on core wire 11 and electric wire fixing segments 23 (crimping process).

At this point, can avoid adjoint connect because clipping electric wire fixing segments 23 between core wire 11 and a pair of of spool portion 32 The stress deformation of joint terminal 30, core wire 11 are stretched out from the butted part in a pair of of spool portion 32.

As above, according to the present embodiment, harness 1 has: electric wire 10, has the core wire 11 being made of more wires materials With the insulating coating 12 for coating core wire 11；Single-core line 20 has main part 21 and electric wire fixing segments 23, electric wire fixing segments 23 extend from main part 21, and are configured in the mode being covered on core wire 11；And tab terminal 30, have 31 He of base plate A pair of of spool portion 32 configures core wire 11 in base plate 31, and a pair of of spool portion 32 extends from base plate 31, and from electric wire fixing segments 23 Outside winding.

According to above-mentioned structure, because clipping the electric wire fixing segments 23 of single-core line 20 between core wire 11 and spool portion 32, It is stretched out so can be avoided core wire 11 from the butted part in a pair of of spool portion 32.

In addition, electric wire fixing segments 23 have a thick wall portion 23B, circumferentially extending of the thick wall portion 23B along core wire 11, and thickness ratio The thickness of other parts is big.

Have the composition of thick wall portion 23B according to electric wire fixing segments 23, becomes across the part of thick wall portion 23B than it in core wire 11 The compressed high compression portion 11H of the high compression ratio in his part.In high compression portion 11H, compressed by core wire 11 with high compression rate, To which the oxidation overlay film formed on the surface of core wire 11 is destroyed, the newly-generated surface of metal is exposed.Pass through the newly-generated surface It is contacted with tab terminal 30 and electric wire fixing segments 23, to it is expected between core wire 11 and single-core line 20 and tab terminal 30 Electrical connection.On the other hand, in other parts, core wire 11 is compressed with the compressing force lower than high compression portion 11H, therefore can inhibit The broken string of core wire 11.

In this way, being easy to happen core wire 11 there are in the case where high compression portion 11H in core wire 11 in high compression portion 11H and stretching Out the case where.In order to avoid the situation, the structure of electric wire fixing segments 23 is preferably clipped between core wire 11 and spool portion 32.

In addition, the manufacturing method such as above-mentioned harness 1 includes: setting process, it is placed in base plate 31 by core wire 11 Afterwards, electric wire fixing segments 23 are loaded on the core wire 11；And crimping process consolidates in spool portion 32 from electric wire after setting process The outside for determining portion 23 is wound in core wire 11.

According to this structure, because in crimping process, electric wire fixing segments are clipped between online canister portion 32 and core wire 11 23, it is stretched out so can be avoided core wire 11 from the butted part in a pair of of spool portion 32.

<other embodiments>

It is not limited to the embodiment by above-mentioned description and Detailed description of the invention by the technology of this disclosure, such as is also wrapped Include following various modes.

(1) in the above-described embodiment, in electric wire fixing segments 23, become thickness with the adjacent a part of linking part 22 and compare top The big thick wall portion 23B of the thickness of the remainder (thinner wall section 23A) of side, but the structure of thick wall portion is not limited to above-mentioned embodiment party Formula, for example, a part of tip side can also become thick wall portion.Alternatively, in the ora terminalis of main part side and the ora terminalis of tip side Centre part can also become thick wall portion.

(2) in the above-described embodiment, main part 21 is pole shape, but the shape of main part is not limited to above-mentioned implementation Mode, for example, or it is rectangular rodlike.

Description of symbols

1: harness

10: electric wire

11: core wire

12: insulating coating

20: single-core line (connection conductor)

21: main part

23: electric wire fixing segments

23B: thick wall portion

30: tab terminal (crimp type terminal)

31: base plate (bottom wall part)

32: spool portion (canister portion)