CN100377427C

CN100377427C - Fast connecting terminal device

Info

Publication number: CN100377427C
Application number: CNB2005100965320A
Authority: CN
Inventors: 本田稔
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2004-08-26
Filing date: 2005-08-26
Publication date: 2008-03-26
Anticipated expiration: 2025-08-26
Also published as: KR20060050647A; SA05260266B1; JP2006066223A; TWI280711B; TW200614608A; CN1741318A; JP4289258B2; KR100826384B1

Abstract

To show the fact that an electric wire is surely connected to a terminal board, and to provide a worker with the sense of assurance of the situation. When a connection between a terminal board 1 and an electric wire 110 is completed, the operation part 31 of a release lever 30 shifts to a lower position than an initial position. This makes the worker confirm a sign of electric wire connection completion visually. Furthermore, the worker confirms the sign by hearing a sound (crashing sound) which occurs when a second connection part 36 crashes into the surface of a vertical wall 109 of a body 100. In addition, the evenness of the front of an axis 32 does not inhibit the release lever 30 from moving under contact with the terminal plate 1 since the release lever 30 is formed into a shape and dimensions not to make contact with the terminal plate 1 when rotating to the counter operation direction by the spring force of a locking strip 4 in connecting the electric wire. Thus, the sign of the electric wire connection completion is surely shown.

Description

Termination

Technical field

The present invention relates to a kind of fast connecting terminal device, especially a kind of termination.

Background technology

With regard to the traditional wired device for example with regard to switch or the wall outlet, the extensive use fast connecting terminal device connect introduce this device electric wire by being arranged on the electric wire insertion holes at device place.Traditional fast connecting terminal device like this comprises that conduction is connected to the end plaste of switch contact point or wall outlet jack; And be used for wiring conductive be connected to end plaste and keep the snap that is connected between electric wire (lead) itself and the end plaste, snap also is used to lock electric wire and breaks away to prevent electric wire; Also comprise by with instrument for example screwdriver or analog inject be arranged on the device place handle hole to discharge the release-push of snap locking.(see the disclosed patent application No.H11-185905 of Japan (0014 section, Fig. 1))

Yet, in so traditional fast connecting terminal device, distinguish that whether actual connect of electric wire be difficult, correspondingly operator's this is become worry.

Summary of the invention

Therefore, the purpose of this invention is to provide and a kind ofly can be physically connected to the termination that makes the operator relieved on the end plaste by showing electric wire.

According to a first aspect of the invention, a kind of termination is provided, comprise: end plaste, described end plaste comprises contact chip and has the locking plate of lock part, wherein, described contact chip is used for contacting with the electric wire that inserts described termination by the electric wire insertion holes of described termination, and described locking plate is used for spring force by adopting described locking plate and remains on electric wire between described contact chip and the described locking plate and be used for preventing that by the lock part that contacts with electric wire electric wire breaks away from; Releasing unit is used to remove by described locking plate preventing the state that electric wire breaks away from, and wherein, described releasing unit comprises manually operated shank portion, and shank portion is exposed to the outer surface of described termination; Be used for rotating handle part, rotatably be supported on pivoting portions on the described termination; And be used for the promotion part that the lock part broken away from when shank portion overcomes described locking plate when direction of operating is manually turned spring force from electric wire; And locking unit, described locking unit comprises and is arranged on being engaged part and being arranged on mate on the described releasing unit on the described contact chip, wherein, when electric wire is not arranged in the described termination, by mate and the engagement that is engaged part, described locking unit overcomes the spring force of described locking plate and locks described releasing unit; When the front end that is inserted into the electric wire of described termination when mate was pushed, described locking unit discharged described releasing unit, and when being locked, described releasing unit is pushed along the direction opposite with described direction of operating by the spring force of described locking plate; Wherein, described releasing unit forms aspect shape and size, prevent that when described locking unit discharges described releasing unit described releasing unit from contacting with described end plaste, thereby described shank portion is pivoted around pivoting portions under the effect of the spring force of described locking plate.

Therefore, do not set up if electric wire connects, releasing unit is locked on the locking unit and shank portion is in to connect under the performance with electric wire and compares different position of rotation.Yet if electric wire introducing device and be connected with end plaste by link, the lock-out state of locking unit just obtains discharging by corresponding electric wire.Because bias mechanism applies the releasing unit of elastic force thereon along the direction rotation opposite with direction of operating, so the position change of shank spare can show that electric wire has been connected to end plaste by the position difference of shank portion, thereby make the operator relieved.In addition, releasing unit can prevent that pivoting portions contacts with end plaste when the lock-out state of locking unit is disengaged forming aspect the shape and size, and releasing unit pivots around pivoting portions under the effect of bias mechanism pressure.Consequently, do not hinder moving of releasing unit with contacting of end plaste, thereby show the electric wire establishment of connection.

According to a second aspect of the invention, a kind of termination is provided, wherein, ledge is arranged on the sidepiece of described lock part, and when described releasing unit by along described direction of operating rotation the time, described ledge divides with described pushing part and contacts, and the part of described pivoting portions contacts with described locking plate, thereby limits the displacement of described ledge.

Can prevent to promote unnecessary the pushing and mobile lock part of part.

According to a third aspect of the invention we, a kind of termination is provided, also comprise the additional releasing unit that is contained in the termination, the contiguous described releasing unit of additional releasing unit, and also comprise the barrier ribs that is arranged between described releasing unit and the described additional releasing unit, is used to make described releasing unit and described additional releasing unit isolation.

Barrier ribs can prevent that contiguous releasing unit from not moved by the interference between them.

According to a forth aspect of the invention, provide a kind of termination, wherein also comprise support section, when shank portion is rotated, described support section and described pivoting portions sliding contact, thus described shank portion is stably rotated.

Correspondingly, releasing unit can stably rotate.

According to a fifth aspect of the invention, a kind of termination is provided, wherein, ledge is arranged on the sidepiece of described lock part, and when described releasing unit is locked by described locking unit, described ledge contacts with the described surface that promotes part, and described surface quilt is towards described ledge bending.

Although be used to lock the anglec of rotation difference of the releasing unit of locking unit, the step that the lock part with promoting part that is provided with on the surface contacts can prevent that the lock part is unnecessary and be pressed and move.

According to a sixth aspect of the invention, a kind of termination is provided, wherein, along the lock part width of the direction vertical diameter greater than electric wire with the electric wire direction of insertion, and towards being arranged on the lock part on two end sections of its Width near the outstanding ledge of the direction of electric wire.

Because two end sections of lock part on Width are provided with ledge, electric wire may be directed to the core on the Width of lock part.

According to a seventh aspect of the invention, provide a kind of termination, wherein said contact chip has the smooth contact surface towards the lock part, and the electric wire of insertion is arranged between described contact surface and the described lock part and with them and contacts.

Correspondingly, can improve the reliability of contact by increasing the contact surface that contacts with electric wire.

According to an eighth aspect of the invention, provide a kind of termination, wherein when described releasing unit was discharged also by described locking unit thereby is rotated, described releasing unit produced sound by impacting described termination.

If the lock-out state of locking unit is released, thereby releasing unit is along the rotation of the rightabout of direction of operating, and releasing unit produces click by beating unit, can check the electric wire establishment of connection by sound.

Description of drawings

Above the present invention and the following description by the preferred embodiment that provides in the accompanying drawing of other purposes and feature become clearer, wherein:

Figure 1A shows the critical piece of fast connecting terminal device according to the preferred embodiment of the invention to 1F, and wherein Figure 1A is to the viewgraph of cross-section of 1F difference diagram initial position, begin to introduce the viewgraph of cross-section of the state of electric wire at initial position, viewgraph of cross-section in initial position electric wire (conductor) front end and mate state of contact, the mate of pushing by the electric wire front end and be engaged the viewgraph of cross-section of the d/d state of engagement between the part, the viewgraph of cross-section that obtains in the release lever rotary course, by stopping the viewgraph of cross-section that release lever connects the state of electric wire.

Fig. 2 is the exploded perspective view of critical piece part abridged preferred embodiment.

Fig. 3 A and 3B are respectively the inclined stereo figure of the preferred embodiment seen from the front and back.

Fig. 4 A represents front view, upward view, rearview and right side view according to the main body of preferred embodiment respectively to 4D.

Fig. 5 A represents front view, upward view, rearview and right side view according to the lid of preferred embodiment respectively to 5D.

Fig. 6 A represents front view, vertical view, upward view, right side view and rearview according to the end plaste of preferred embodiment respectively to 6E.

Fig. 7 A represents front view, vertical view, left side view, upward view and right side view according to the release lever of preferred embodiment respectively to 7E.

Fig. 8 diagram is according to the stereogram of the release lever of preferred embodiment.

Fig. 9 shows the stereogram according to the part abridged main body of preferred embodiment.

Figure 10 is the vertical view of the comparative example of preferred embodiment.

Figure 11 diagram is according to the main body of preferred embodiment and the part abridged vertical view of release lever.

Figure 12 A and 12B are the schematic diagrames that is used for explaining according to the operation of the comparative example of preferred embodiment.

Figure 13 A and 13B are the schematic diagrames that is used for explaining the operation of preferred embodiment.

Figure 14 illustrates the stereogram of the three die walls dress supply socket with preferred embodiment of the present invention.

Embodiment

Hereinafter, the preferred embodiment to the fast connecting terminal device of the present invention that is applied to wall outlet terminal contact assembly with reference to the accompanying drawings is described in detail.At this, the present invention can be applied to other terminations for example switch or analog, and is not limited to wall outlet.

As shown in Figure 2, rectangular parallelepiped protrusion part main body 101 by will having the opening front surface and the rectangular parallelepiped protrusion part lid 102 with opening rear surface combine and form device 100, and wherein main body 101 and lid 102 are made by the hot curing synthetic resin of high track resistance.

As shown in Figure 4, the inner space of main body 101 is arranged on dividing wall 103 separated into two parts of its core along main body 101 longitudinal directions.And, see that from the top lug boss 101a with rectangular shape is vertically outstanding in two ends of two sides along main body 101.As shown in Figure 5, also be formed with dividing wall 104 in the lid 102, and rectangle salient angle sheet extends back along vertical two ends from two sides of covering 102.If the front surface of main body 101 and lid 102 rear surface be mutually in the face of combining, four lug boss 101a of main body 101 insert and penetrate among the rectangular opening 102b that covers four salient angle sheet 102a of 102, assemble up thereby will install 100.Simultaneously, the dividing wall 104 of the dividing wall 103 of main body 101 and lid 102 will install 100 inner space and be divided into two independent spaces.The parallel-plate shape plug blades insertion plug receiving slit 102c wherein of plug penetrates and covers 102 front surface.And the jack (not showing) that the plug blades among the plug receiving slit 102c is inserted in a pair of reception is configured in and covers on 102.In addition, the terminal contact assembly A that electric wire is connected with jack is contained in a pair of accommodation section 105 that forms in main body 101 by dividing wall 103.

The terminal contact assembly A that is used as fast connecting terminal device in this preferred embodiment comprises end plaste 1 and release lever 30.As Fig. 1, shown in 2 and 6, end plaste 1 has rectangle main leaf 2; The a pair of contact chip 3 that vertically extends downwards along main leaf 2 from a side periphery; Vertical locking plate 4 along main leaf 2 from the downward pairing approximation J-shaped that extends of opposite side periphery.And end plaste 1 is that the strip metal plate by the elasticity of flexure forms an integral body, and the fore-end of contact chip 3 can be respectively intersects with the fore-end of locking plate 4 like this.Each contact chip 3 have the smooth contact surface 3a that contacts with electric wire, with and front end edge the direction bending that separates with locking plate 4 be engaged part 6.Be engaged between part 6 and the main leaf 2 form electric wire penetrate wherein be inserted through part 5, be inserted through part 5 in the face of electric wire insertion holes 106.In addition, the front end of the locking plate 4 that forms in the parts more inner than contact chip 3 is provided with lock part 4a, is used for pushing electric wire and prevent the electric wire disengaging when contacting with the part of electric wire to contact chip 3.Being installed in below each lock part 4a is sweep 4b, and sweep 4b is a convex along the direction of separating with electric wire (contact chip 3).By lock part 4a is arranged to diameter greater than electric wire 110 along the width of the direction vertical with the electric wire incoming direction (horizontal direction among Fig. 6 A), the core of lock part 4a on Width contacts with electric wire 110.In addition, be arranged on along Width on two end sections of lock part 4a to the pair of protruding portions 4c that gives prominence near the direction of electric wire 110, and further pushed by release lever 30.In addition, the width of contact chip 3 is arranged to the width less than locking plate 4, and contact chip 3 is faced the core of lock part 4a like this, and in the face of pair of protruding portions 4c.

As shown in Figure 7 and Figure 8, comprise rod shank portion 31 by the molded release lever 30 of synthetic resin; A pair of pivoting portions 32; Outstanding from the two ends of shank portion 31 and be connected the first pontes 34 with pivoting portions 32; From the outstanding promotion part 33 in side that pivoting portions 32 faces one another; From the first pontes 34 to the outstanding a pair of arm portion 35 of shank portion 31 rightabouts; Second coupling part 36 that connects a pair of arm portion 35 front ends; Approximate side's shape cylindricality mate 37 of giving prominence to the equidirectional of the first pontes 34 from second coupling part 36.Each pivoting portions 32 has flat front (end face among Fig. 7 A) and rear surface (bottom surface among Fig. 7 A), and the end sections of front surface and rear surface forms arc-shaped surface 32a and the 32b with different curvature radius.And because the supporting 107 that is provided with on each among the curved surface 32a of front and the bottom surface of the holding portion 105 of main body 101 shown in Figure 9 contacts, pivoting portions 32 is installed in and rotatably is supported on and supports on 107.

Simultaneously, as Fig. 2 and shown in Figure 4, at three grooves 104 that are respectively arranged with guiding holding portion 105 perpendicular to device 100 (main bodys 101) longitudinally on two side surfaces.The first pontes 34 and shank portion 31 are exposed to the outside of device 100 by the groove on the release lever 30 104, and each promotes the ledge 4c of part 33 in the face of the locking plate 4 of end plaste 1.In this state, if pivoting portions 32 is installed in the supporting 107 that is arranged in the holding portion 105, release lever 30 can pivot around pivoting portions 32 in the forward/backward direction (vertical direction among Fig. 1) of device 100.In addition, as shown in Figures 2 and 3, the release lever 30 of two symmetries is arranged side by side in holding portion 105, and its pivoting portions 32 can be close to mutually.

Yet if electric wire 110 does not connect, shown in Figure 1A, what release lever 30 rotated to mate 37 and end plaste 1 is engaged part 6 position engaged (hereinafter, this position is called " initial position ").When release lever was in initial position, the ledge 4c of end plaste 1 was pushed part 33 and promotes, thereby made locking plate 4 along the direction bending that breaks away from contact chip 3.Simultaneously, because the effect of the spring force of locking plate 4, release lever 30 is resiliently biased along the rightabout (counter clockwise direction among Fig. 1) of direction of operating.Yet,, can keep the initial position of release lever 30 because the part 6 that is engaged of mate 37 and end plaste 1 meshes.

Shown in Figure 1B and Fig. 1 C, if the conductor of electric wire 110 111 inserts between contact chip 3 and the locking plate 4 by electric wire insertion holes 106, the front end of conductor 111 contacts with the mate 37 of release lever 30 by being inserted through part 5, so upwards promote mate 37.Correspondingly, mate 37 and the engagement that is engaged between the part 6 are released.After this, shown in Fig. 1 D and Fig. 1 E, because the resiliently biased release lever 30 of the effect of the spring force of locking plate 4 is along the rightabout rotation of direction of operating.Correspondingly, the lock part 4a of locking plate 4 begins to contact with conductor 111, thereby stops electric wire 110 to break away from.And, conductor 111 under the spring force effect of locking plate 4 with contact chip 3 Elastic Contact.Simultaneously, conductor 111 is touched sheet 3 and presses to locking plate 4, thereby the balance that becomes of the pressure between lock part 4a and the contact chip 3, thereby maintains electric wire 110.When second coupling part 36 owing to contact (particularly with device 100, owing to contact with the inner surface of the wall 109 that between contiguous groove 104, is provided with, each wall is set at the opening part that is surrounded by the shank portion 31 of release lever 30, the first pontes 34, arm portion 35 and second coupling part 36) and when stopping, because the effect of locking plate 4 spring forces produces sound (click) along the release lever 30 of the rightabout rotation of direction of operating, sees Fig. 1 F.In the present embodiment, by lock part 4a is arranged to diameter greater than conductor 111 along the width of the direction vertical with electric wire 110 incoming directions, the core of lock part 4a on Width contacts with conductor 111.And two end portion offices on the 4a Width of lock part are provided with the ledge 4c that gives prominence to near the direction of conductor 111.By these two ledge 4c, conductor 111 may be directed to the core on the 4a Width of lock part.Correspondingly, conductor 111 and end plaste 1 (contact chip 3 and locking plate 4) can prevent not alignment.In addition, ledge 4c has reduced to separate the rotation degree of the required release lever 30 of lock part 4a from conductor 111, thereby prevents the interference of end plaste 1.

Simultaneously, if shank portion 31 is upwards lifted when electric wire 110 connection status, release lever 30 pivots around the rightabout (clockwise direction among Fig. 1) of pivoting portions 32 along electric wire 110 closures.Correspondingly, promote the ledge 4c that part 33 is pushed end plaste 1, thereby locking plate 4 beginnings are crooked, the lock part 4a that contacts with conductor 111 can break away from from here like this.Consequently, electric wire 110 can be pulled out.In addition, when making release lever 30 rotations by lever part 31, the fore-end of the front surface of pivoting portions 32 contacts with the locking plate 4 of end plaste 1, thus the displacement of the ledge 4c that restricted passage promotion part 33 is pushed.Correspondingly and since can stop promote part 33 unnecessary push ledge 4c, can stop locking plate 4 distortions of end plaste 1 to increase, can avoid the plastic deformation of locking plate 4 like this.

According to this preferred embodiment, being connected under the situation about having finished between end plaste 1 and electric wire 110, the shank portion 31 of release lever 30 moves to the position lower than initial position, and the electric wire establishment of connection can visually show like this.In addition, the electric wire establishment of connection can come sense of hearing inspection by the sound (click) that produces when second coupling part, 36 beating units 100 (wall 109) of release lever 30.In addition, also be used to show electric wire 110 establishment of connections, can reduce the increase of number of spare parts owing to discharge the release lever 30 of electric wire 110 connections.As shown in figure 10, by the support section 38 of approximate fan-shaped is set in the anterior part of pivoting portions 32, when manually rotating release lever 30 by the user with manual manipulation shank portion 31, support section 38 allows with main leaf 2 sliding contacts of end plaste 1 and the spin stabilization of release lever 30.Yet when electric wire 110 connected, because the effect of the spring force of locking plate 4, if release lever 30 rotates at the rightabout of direction of operating, the resistance that the sliding contact between support section 38 and end plaste 1 produces may hinder the rotation of release lever 30.Correspondingly, the position that release lever 30 can not rotate to shank portion 31 beating units 100 surfaces may take place.For addressing this problem, in this preferred embodiment, each front surface of pivoting portions 32 is all made flat surfaces, release lever 3 forms on shape and size, when electric wire connect and the spring force effect of release lever 30 at locking plate 4 under stop contacting of pivoting portions 32 and end plaste 1 during rightabout rotation at direction of operating.Consequently, unlike above-mentioned structure with support section 38, the moving of release lever 30 is not subjected to the obstruction that contacts with end plaste 1, and the electric wire establishment of connection can be shown certainly.In addition, in this preferred embodiment, as shown in Figure 9, barrier ribs 107a from support 107 its anterior part of mind-set outstanding.As shown in figure 11, it is separated from each other that the adjacent pivoting portions 32 that is arranged on two release levers 30 of device 100 passes through barrier ribs 107a, can prevent two release levers 30 like this owing to interfere rotation brokenly or not rotation.In addition, in this preferred embodiment, as Fig. 9 and shown in Figure 11, the back-up block 108 that is used for supporting pivoting portions 32 when with the curved surface 32b sliding contact of the rear end side of pivoting portions 32 is formed on the inwall of holding portion 105 of main body 101.Consequently, even support section 38 is not arranged on the release lever 30, release lever 30 also can stably rotate.

Because the difference of release lever 30 or analog part edge, release lever 30 may change to the rotation degree of its initial position.If the rotation degree excessively increases, also increase by the moving displacement that promotes the ledge 4c that part 33 pushes.Correspondingly, if the rotation degree is too high, promote the displacement increase that part 33 promotes ledge 4c.Unnecessarily promote ledge 4c owing to promote part 33, plastic deformation may take place in the distortion increase or the locking plate 4 of the locking plate 4 of end plaste 1.For this reason, in this preferred embodiment, the surface that promotion part 33 contacts with ledge 4c when release lever 30 is in initial position is provided with step 33a.In other words, shown in Figure 12 A and Figure 12 B, make under the situation smooth rather than that step 33a is set thereon on the surface that promotion part 33 contacts with ledge 4c, when release lever 30 (seeing Figure 12 A) when initial position rotates, the contact surface that promotes part 33 is moved, thus also mobile ledge 4c (seeing Figure 12 B).Yet, if the surface that promotion part 33 contacts with ledge 4c is provided with step 33a, and the contact surface of step 33a top tilts along the direction near ledge 4c, shown in Figure 13 A and Figure 13 B, even when release lever 30 when initial position (seeing Figure 13 A) rotates, ledge 4c can arrive step 33a along the contact surface of step 33a (seeing Figure 13 B) top.Consequently, move even promote part 33, ledge 4c does not move yet.

Although this preferred embodiment has been described the embedded type wall outlet that single mode device 100 wherein has a pair of plug receiving slit 102c, fast connecting terminal device of the present invention can be applied to the terminal contact assembly that three die devices wherein have the embedded type wall outlet of two pairs of plug receiving slits, every pair all comprises a pair of plug receiving slit 102c and ground connection pore 102d, as shown in figure 14.

According to a preferred embodiment of the invention, if electric wire connects and not finish, release lever is locked in locking unit, and shank portion is in electric wire and connects different position of rotation place under the performance.Yet, if electric wire introducing device and be connected with end plaste by linkage unit discharges the lock-out state of locking unit by respective wire.Because bias mechanism applies the rightabout rotation of elastic force release lever thereon along direction of operating, so the change in location of shank portion can show that electric wire has been connected to end plaste by the difference of shank portion present position, thereby make the operator relieved.In addition, release lever can prevent that pivoting portions contacts with end plaste when the lock-out state of locking unit is released forming aspect the shape and size, and by the effect of bias mechanism pressure, release lever pivots around pivoting portions.Consequently, do not hinder moving of release lever with contacting of end plaste, thereby show the electric wire establishment of connection.

The present invention is shown and describes that those people that are skilled in technique should be understood that under the situation of the purport of the present invention that defines in claims and scope can carry out variations and modifications to the present invention below not departing from according to preferred embodiment.

Claims

1. termination comprises:

End plaste, described end plaste comprises contact chip and has the locking plate of lock part, wherein, described contact chip is used for contacting with the electric wire that inserts described termination by the electric wire insertion holes of described termination, and described locking plate is used for spring force by adopting described locking plate and remains on electric wire between described contact chip and the described locking plate and be used for preventing that by the lock part that contacts with electric wire electric wire breaks away from;

Releasing unit is used to remove by described locking plate preventing the state that electric wire breaks away from, and wherein, described releasing unit comprises manually operated shank portion, and shank portion is exposed to the outer surface of described termination; Be used for rotating handle part, rotatably be supported on pivoting portions on the described termination; And be used for the promotion part that the lock part broken away from when shank portion overcomes described locking plate when direction of operating is manually turned spring force from electric wire; And

Locking unit, described locking unit comprises and is arranged on being engaged part and being arranged on mate on the described releasing unit on the described contact chip, wherein, when electric wire is not arranged in the described termination, by mate and the engagement that is engaged part, described locking unit overcomes the spring force of described locking plate and locks described releasing unit; When the front end that is inserted into the electric wire of described termination when mate was pushed, described locking unit discharged described releasing unit, and when being locked, described releasing unit is pushed along the direction opposite with described direction of operating by the spring force of described locking plate;

Wherein, described releasing unit forms aspect shape and size, prevent that when described locking unit discharges described releasing unit described releasing unit from contacting with described end plaste, thereby described shank portion is pivoted around pivoting portions under the effect of the spring force of described locking plate.

2. termination according to claim 1, it is characterized in that, ledge is arranged on the sidepiece of described lock part, and when described releasing unit by along described direction of operating rotation the time, described ledge contacts with described pushing part branch, and the part of described pivoting portions contacts with described locking plate, thereby limits the displacement of described ledge.

3. termination according to claim 1, it is characterized in that, also comprise the additional releasing unit that is contained in the termination, the contiguous described releasing unit of additional releasing unit, and also comprise the barrier ribs that is arranged between described releasing unit and the described additional releasing unit, is used to make described releasing unit and described additional releasing unit isolation.

4. termination according to claim 1 is characterized in that, also comprises support section, when shank portion is rotated, and described support section and described pivoting portions sliding contact, thus described shank portion is stably rotated.

5. termination according to claim 1, it is characterized in that ledge is arranged on the sidepiece of described lock part, and when described releasing unit is locked by described locking unit, described ledge contacts with the described surface that promotes part, and described surface quilt is towards described ledge bending.

6. termination according to claim 1, it is characterized in that, along the lock part width of the direction vertical diameter greater than electric wire with the electric wire direction of insertion, and towards being arranged on the lock part on two end sections of its Width near the outstanding ledge of the direction of electric wire.

7. termination according to claim 1 is characterized in that described contact chip has the smooth contact surface towards the lock part, and the electric wire of insertion is arranged between described contact surface and the described lock part and with them and contacts.

8. termination according to claim 1 is characterized in that, when described releasing unit discharged by described locking unit and thereby when being rotated, described releasing unit produces sound by impacting described termination.