JP5979445B2 - Terminal block - Google Patents

Description

  The present invention relates to a terminal block.

  Conventionally, what was described in following patent document 1 is known as a terminal block which electrically connects the electrically-conductive members provided in electric equipments, such as a motor and an inverter. This is provided with a synthetic resin housing that is inserted through a case of a predetermined device inside and outside, and a plurality of terminals provided with connecting portions provided with nuts at both ends of an L-shaped bus bar. Each terminal has a structure in which a connection portion at one end faces the outer end portion of the housing and a connection portion at the other end faces the inner end portion of the housing.

  An outer conductive member made of a bus bar extended from an electric device such as an inverter is connected to a connection portion outside the terminal mounted on the terminal block by bolting and extended from the electric device such as a motor. The inner conductive member made of a bus bar is connected to the inner connecting portion of the terminal by bolting, and electrical continuity between the corresponding inner and outer conductive members is taken.

JP 2010-211193 A

In the above-described conventional terminal block, in particular, when the inner conductive member is bolted and connected to the connecting portion inside the corresponding terminal, a work space for inserting a bolting tool inside the device is required. However, there was a problem that it was difficult to work because it was a bolting work inside the equipment, and the improvement was eagerly desired.
The present invention has been completed based on the above circumstances, and its object is to provide a terminal block that can save space and improve the connection workability between the conductive member and the terminal. is there.

  The present invention is a terminal block for connecting a plurality of inner conductive members and outer conductive members arranged inside and outside of a device, a housing provided through a case of the device inside and outside, and a housing mounted on the housing. A terminal provided with a connecting portion with the outer conductive member at the outer end, a cylindrical socket terminal fitted and connected with a pin terminal provided at the inner conductive member, and the socket A sub-housing in which a terminal is inserted and a terminal insertion port into which the pin terminal can be inserted is opened, and the sub-housing is mounted on the housing so as to be movable in a direction crossing an axis. It has a characteristic where it exists.

In the above configuration, when connecting the inner conductive member to the inner end of the terminal, the pin terminal provided on the inner conductive member is fitted into the socket terminal accommodated in the sub housing through the terminal insertion port of the sub housing. . Compared with the case of connecting by bolt tightening, it is sufficient to fit the pin terminal to the socket terminal. Therefore, the connection work itself is simplified, and the work space for bolt tightening can be eliminated, thereby saving space. it can.
In addition, since each sub-housing has a so-called floating structure and is mounted on the housing, for example, even if there is a variation in the arrangement position of each inner conductive member, that is, each pin terminal, It is possible to accurately align and fit the terminals and socket terminals.

The following configuration may also be used.
An easy-bending portion is provided in the middle of the terminal in the length direction. In this configuration, the sub-housing can be moved while deforming the terminal at the easily bent portion, and the floating function can be more reliably exhibited.

  The said terminal contains a strip | belt piece and the said easily bent part is formed in the middle position of the length direction of the strip | belt piece. In this configuration, the floating function can be more reliably exhibited while keeping the terminal in a simple structure.

  The easily bent portion of the terminal is formed of a flexible conductor made of a braided wire. In this configuration, the floating function of the sub-housing can be more reliably exhibited, and when vibration is applied to the inner conductive member or the outer conductive member, the vibration is absorbed by the flexible conductor, and vibration is generated on the opposite conductive member side. It can be suppressed.

  According to the terminal block of the present invention, it is possible to save space and perform the connecting operation between the conductive member and the terminal accurately and efficiently.

1 is an external perspective view of a terminal block according to Embodiment 1 of the present invention. Front view Side view Same part cutaway perspective view VV sectional view of FIG. Longitudinal sectional view when molding the housing body The longitudinal cross-sectional view of the terminal block which concerns on Embodiment 2. Longitudinal sectional view of a terminal block according to Embodiment 3

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
In this embodiment, a terminal block T that electrically connects a three-pole conductive member provided in a three-phase AC motor mounted on a vehicle such as an electric vehicle or a hybrid vehicle and a three-pole conductive member provided in an inverter. And is applied to a direct connection type of a motor and an inverter.

More specifically, as shown in FIG. 5, the terminal block T is provided on the upper wall 2 of the transmission case 1, and a motor-side case (not shown) is provided on the front opening side (left side of the figure) of the transmission case 1. While being assembled adjacent to each other, an inverter side case is further assembled on the upper surface of the integrally connected transmission case 1 and motor side case. The three-pole conductive member (inner conductive member) extending from the motor and the conductive member (outer conductive member) extending from the inverter are electrically connected via the terminal block T as described above. It has become.
In this embodiment, the outer conductive member extending from the inverter is a bus bar, while the inner conductive member extending from the motor is an enameled wire that is straightened with an adhesive or the like, As shown in FIG. 5, a round pin terminal p is coaxially connected to the tip of the member.

The structure of the terminal block T will be described in detail. As shown in FIG. 1, the terminal block T includes three terminals 10 shown in the figure, and a synthetic resin housing 30 in which these terminals 10 are mounted in parallel.
As shown in FIG. 6, the terminal 10 has a structure in which a strip 12 made of a metal plate thinner than the bus bar 11 is connected to a hanging end of a bus bar 11 bent into an L shape. In the middle of the strip 12 in the height direction, it is bent into a crank shape for reinforcement or the like.
A horizontal portion of the bus bar 11 which is one end side of the terminal 10 serves as an outer connection portion 14 connected to the outer conductive member, and a bolt insertion hole 15 is opened. At the lower end of the strip 12 that is the other end of the terminal 10, a socket terminal 20 that functions as an inner connecting portion connected to the inner conductive member is provided.

  The socket terminal 20 has a two-piece structure in which a cylindrical body 25 is fitted on the outer periphery of the louver terminal portion 21. The louver terminal portion 21 has a ring-shaped base portion 22 having a plurality of elastic contact pieces 23 having a contact portion 23A on the front end side and extending forward at the front edge of the ring-shaped base portion 22 and spaced in the circumferential direction. It is an arranged shape. At the rear edge of the bottom surface of the base 22, a protrusion 22A is bent outward.

  An inward flange 26 is formed at the front end of the cylindrical body 25 to protect the tip of the elastic contact piece 23 of the louver terminal portion 21. On the lower surface of the cylindrical body 25, a groove 28 into which the above-described protrusion 22A can be inserted is formed by cutting from the rear edge. The cylindrical body 25 is fitted on the outer periphery of the louver terminal portion 21 from the front, and when the rear edge of the groove 28 hits the protruding portion 22A, the pushing is stopped, and a pair of left and right coupling pieces 27 protruding from the rear edge. Is folded back with respect to the base 22 so as to be prevented from coming off.

From the upper edge of the base portion 22 of the louver terminal portion 21, the above-described strip-shaped piece 12 is integrally formed, and the upper end portion of the strip-shaped piece 12 is applied to the hanging lower end of the bus bar 11 by spot welding or the like. It is fixed. Thus, the terminal 10 is formed, and the socket terminal 20 serving as the inner connection portion is provided at the lower end portion of the terminal 10 in a posture facing the same direction as the bending direction of the outer connection portion 14 (left side in FIG. 6). It becomes a form.
A total of three such terminals 10 are provided, and each terminal 10 is attached to the housing 30 in a form in which the socket terminal 20 is accommodated in the sub-housing 60 (see FIG. 5). ing. The sub housing 60 will be described later.

  The housing 30 includes a housing body 31 and a cover 50. As shown in FIGS. 1 and 6, the housing body 31 is formed in a box shape having a bottom opening that is elongated in the left-right direction. A horizontally long flange 32 is formed on the upper edge of the housing body 31. Is provided with a mounting hole 33 in which a collar 34 is fitted. A packing mounting groove 35 is provided around the lower surface of the flange 32 so that a ring-shaped surface packing 36 is mounted.

  A pedestal block 40 on which the outer connection portions 14 of the terminals 10 described above are mounted side by side is provided at the center of the upper surface of the housing body 31. The pedestal block 40 is formed with three pedestals 41 on which the outer connection portions 14 are individually placed. Each pedestal 41 is recessed from the placement surface, and the accommodation chamber 43 of the nut 42 is provided on the front surface. An opening is formed. Each accommodation chamber 43 is configured to receive a nut 42 that is prevented from rotating.

First, the manufacturing procedure of the housing body 31 will be described with reference to FIG. First, the pedestal block 40 is formed by primary molding over the bus bars 11 of the three terminals 10 arranged at a predetermined pitch (including the connection portion with the strip 12), and the three terminals 10 are connected to the pedestal block 40. The form is held in a predetermined posture.
Next, the housing body 31 is formed by performing secondary molding with the pedestal block 40 and the three terminals 10 as cores. At this time, each socket terminal 20 takes a form in which the lower half protrudes downward from the lower edge of the front wall 31 </ b> A immediately behind the front wall 31 </ b> A of the housing body 31. A collar 34 is also attached.

  The cover 50 is formed separately from the housing main body 31 and has a square deep dish shape so as to cover the lower surface opening of the housing main body 31 described above. As shown in FIG. 3, an elastically displaceable lock frame 51 is formed on the left and right side surfaces of the cover 50, while lock projections 38 are provided on the left and right side surfaces of the housing body 31. When the cover 50 is properly attached to the lower surface opening of the housing body 31, the lock frame 51 is elastically fitted to the lock projection 38, so that the housing 30 is integrally joined with the housing body 31 and the cover 50. Is to be formed.

As described above, the socket terminal 20 that is the inner connection portion of the terminal 10 is accommodated in the sub-housing 60. The sub-housing 60 is made of a synthetic resin, and is formed in a cylindrical shape with a front wall 61 into which the socket terminal 20 can be inserted from the rear, as shown in FIGS. The sub-housing 60 has a length dimension comparable to the dimension of the housing body 31 in the front-rear direction. However, the upper half is cut off in a slightly short length region on the rear end side, and the relief portion 62 is formed. ing. In other words, on the rear end side of the sub-housing 60, only the lower half half cylinder portion 63 is provided.
The front wall 61 of the sub-housing 60 has a terminal insertion port 65 into which the above-described round pin terminal p can be inserted, and the front end portion of the terminal insertion port 65 has a leading portion 66 that has a taper shape that expands forward. Is formed.

On the bottom wall of the sub-housing 60, a lance 67 that engages with the protrusion 22A of the socket terminal 20 is provided in a form that extends rearward and can be elastically bent. The socket terminal 20 is inserted into the sub-housing 60 from the rear, and is pushed in while elastically deflecting the lance 67. When the socket terminal 20 is pushed to a position where it hits the front wall 61, the projection 22A passes through the locking portion 67A of the lance 67. As a result, the locking portion 67A is locked to the protrusion 22A while the lance 67 is displaced backward, and the socket terminal 20 is prevented from being detached in the sub-housing 60 and accommodated.
A front rib 68 having a constant height is formed over the entire circumference of the outer periphery of the front end portion of the sub-housing 60, specifically, the central portion in the thickness direction of the front wall 61. In addition, a rear rib 69 having the same height as the front rib 68 is formed on the outer periphery of the half cylinder portion 63 of the sub housing 60.

On the other hand, as shown in FIGS. 1 and 5, on the joint between the lower edge of the housing body 31 on the front surface of the housing 30 and the upper edge of the cover 50, the sub-housing 60 containing the socket terminal 20 described above is provided. 45 A of fitting holes which fit a front-end part (front wall 61) are opened by the same pitch as the arrangement pitch of the terminal 10 (socket terminal 20). A fitting groove 46A into which the front rib 68 of the sub-housing 60 is fitted is formed on the inner surface of each fitting hole 45A over the entire circumference.
Since the housing body 31 and the cover 50 are assembled together later as described above, the upper half of each fitting hole 45A is formed on the lower edge of the front wall 31A of the housing body 31 and the fitting hole 45A is formed. The lower half is formed in advance on the upper edge of the front wall 50A of the cover 50, respectively.
A semicircular fitting hole 45B for fitting the rear end portion of the semi-cylindrical portion 63 of the sub-housing 60 is formed on the upper edge of the rear wall 50B of the cover 50, and an inner surface (lower half circumferential surface) of the fitting hole 45B is formed. ) Is formed with a fitting groove 46B into which the rear rib 69 of the sub housing 60 is fitted.

  The inner diameter dimension of the fitting hole 45 </ b> A on the front side of the housing 30 is set to be larger than the outer diameter dimension of the front end portion of the sub-housing 60, and the inner diameter dimension of the fitting groove 46 </ b> A is also the outer diameter dimension of the front rib 68. The same dimension is set larger than. Further, the inner diameter dimension of the semicircular fitting hole 45B on the rear surface side of the housing 30 is set to be larger than the outer diameter dimension of the semi-cylindrical portion 63 of the sub housing 60, and the inner diameter dimension of the fitting groove 46B is It is set larger than the outer diameter of the rear rib 69.

Then, an example of the assembly procedure of the terminal block T according to the present embodiment and a usage example of the terminal block T will be described.
As described above, the housing main body 31 integrally including the three terminals 10 is formed by two moldings as shown in FIG. The outer connection portion 14 of each terminal 10 is placed on the corresponding pedestal 41 directly above the accommodation chamber 43 of the nut 42 in a posture facing frontward. In addition, the socket terminal 20 which is an inner connection portion of each terminal 10 is also oriented forward and coaxial with the fitting hole 45A on the back side of the fitting hole 45A (more precisely, the upper half of the fitting hole 45A). Located on the top.

  Next, the sub-housing 60 is attached to the socket terminal 20 which is an inner connection portion of the three terminals 10 provided integrally with the housing body 31 in the manner described above. Subsequently, the cover 50 is attached to the lower surface opening of the housing body 31. The cover 50 is pushed up from below while the lock frame 51 rides on the lock projection 38 and is elastically displaced. When the upper edge of the cover 50 hits the lower edge of the housing body 31, the lock frame 51 returns to its original shape. However, the housing 30 is formed as shown in FIG.

At this time, as shown in FIG. 5, each sub-housing 60 has a front end portion fitted in the fitting groove 46 </ b> A and a front end portion having a predetermined clearance in the radial direction in the fitting hole 45 </ b> A on the front side of the housing 30. The semi-cylindrical portion 63 of the sub-housing 60 has a diameter in the semicircular fitting hole 45B on the rear surface side of the housing 30 while the rear rib 69 is fitted in the fitting groove 46B. It will be in the state fitted with the predetermined clearance in the direction. That is, each sub-housing 60 is configured such that, in the lower end portion of the housing 30, movement in the axial direction (front-rear direction) is restricted, and in the direction intersecting the axial line (radial direction), free movement is allowed within the clearance. It is installed with.
A nut 42 is inserted into the housing chamber 43 of each base 41 with respect to such a housing 30, and a surface packing 36 is mounted in the packing mounting groove 35 on the lower surface of the flange 32, thereby completing the terminal block T.

  The terminal block T assembled as described above is attached to the upper wall 2 of the mission case 1 as shown in FIG. Specifically, the lower end portion of the housing 30 is inserted from above into the through-hole 3 opened in the case upper wall 2, and then a bolt is inserted into the mounting hole 33 of the flange 32 so that the case upper wall 2. The flange 32, that is, the terminal block T is fixed to the case upper wall 2 by being screwed into the bolt hole. At the same time, the surface packing 36 is elastically compressed and pressed against the hole edge of the through hole 3, whereby the through hole 3 is sealed.

  When the terminal block T is attached in this way, the outer connection portion 14 of each terminal 10 is exposed on the upper surface side (outer side) of the case upper wall 2 in a form arranged on the upper surface of the housing 30 (pedestal block 40). It will be in the state where it faced. On the other hand, the socket terminal 20, which is an inner connection portion of each terminal 10, is housed in a sub-housing 60 that is supported so as to be radially movable with respect to the housing 30.

Next, a procedure for connecting the three-pole conductive member of the three-phase AC motor and the three-pole conductive member of the inverter using the terminal block T will be described.
First, a three-pole inner conductive member (enameled wire) on the motor side is connected to the inner connecting portion of the corresponding terminal 10, and a round pin terminal p provided at the tip of the enameled wire is connected to the arrow in FIG. As shown in FIG. 4, the socket 30 is inserted into the socket terminal 20 on the back side through the terminal insertion port 65 of the sub-housing 60 attached to the lower end portion of the housing 30.
At this time, even if the round pin terminal p is misaligned with respect to the socket terminal 20, the round pin terminal p is inserted while being aligned with the guiding portion 66.
Further, when the round pin terminals p are arranged at different positions and the center misalignment is particularly large, as the round pin terminal p is inserted along the guiding portion 66, the strip 12 of the terminal 10 is inserted. The sub-housing 60 moves in the radial direction while slightly deforming the shaft, thereby aligning the center.

Subsequently, the round pin terminal p is pushed in while expanding and displacing the elastic contact piece 23 of the louver terminal portion 21. When the push is stopped, the elastic contact piece 23 moves backward in the diameter reducing direction, so that the round pin The terminal p and the socket terminal 20 are elastically fitted and contacted with each other, and the three-side inner conductive member (enameled wire) on the motor side is connected to the inner connection portion (socket terminal 20) of the corresponding terminal 10. Become.
After that, the motor side case is assembled adjacently so as to cover the front opening of the transmission case 1.

Subsequently, the three-side outer conductive member (bus bar) on the inverter side is connected to the outer connection portion 14 of the corresponding terminal 10. Although not shown, each bus bar is overlapped on the outer connection portion 14 arranged side by side on the upper surface of the housing 30, and bolts are passed through the insertion holes 15 of the bus bar and the insertion holes 15 of the outer connection portion 14 to the accommodation chamber 43. By screwing and tightening the nut 42 that is locked and accommodated, the three-sided outer conductive member (bus bar) on the inverter side is connected to the outer connection portion 14 of the corresponding terminal 10.
After that, the inverter side case is assembled to the upper surfaces of the transmission case 1 and the motor side case that are integrally coupled as described above.
As described above, the three-pole conductive member provided in the three-phase AC motor and the three-pole conductive member provided in the inverter are electrically connected via the terminal block T, and the motor and the inverter are directly connected. The terminal connection structure is constructed.

In the present embodiment, a round pin terminal p is provided on the inner conductive member with respect to the inner connecting portion of the terminal 10 mounted on the terminal block T, and the terminal 10 The inner connection portion is configured by the socket terminal 20. Therefore, when the inner conductive member is connected to the inner end connection portion of the terminal 10, it is achieved by fitting the round pin terminal p to the mating socket terminal 20.
For example, compared with the case of connecting by bolting, it is sufficient to fit the round pin terminal p into the socket terminal 20, so that the connection work itself is simplified. Further, since a work space for bolt tightening can be made unnecessary, space saving is achieved, and for example, a motor case can be downsized.

In the present embodiment, the socket terminals 20 of the terminals 10 are individually accommodated in the sub-housing 60, while the sub-housings 60 are mounted on the housing 30 in a so-called floating structure so as to be movable in the radial direction. Yes. For example, when the inner conductive members, that is, the positions where the pin terminals p are arranged are varied, that is, when the misalignment is large, the individual round pin terminals p and the socket terminals 20 are accurately connected to each other while moving the sub housing 60. It becomes possible to fit by aligning the cores.
In particular, this is effective when the inner conductive member provided with the round pin terminal p has high rigidity and the inner conductive member itself has a limited amount of bending deformation.

<Embodiment 2>
A second embodiment of the present invention will be described with reference to FIG. The terminal block T1 of the second embodiment should be referred to as a modification of the first embodiment, and the terminal 70 is composed of the bus bar 11 and the strip 71. At an intermediate position in the height direction, an easy-bending portion 72 having a shape that bulges while being curved toward the front side is formed. Other structures are the same as those in the first embodiment.
In this embodiment, the sub-housing 60 can be idled while deforming the terminal 70 at the easily bendable portion 72, and the floating function can be more reliably exhibited.

<Embodiment 3>
FIG. 8 shows Embodiment 3 of the present invention. In the terminal block T2 according to the third embodiment, the structure of the portion where the terminal 80 is provided with the easily bent portion is changed.
Hereinafter, differences from the first embodiment will be mainly described, and members and parts having the same functions as those of the first embodiment will be denoted by the same reference numerals, and description thereof will be simplified or omitted.

  The terminal 80 has a structure in which a flexible conductor 81 serving as an easy-bending portion is connected to a hanging lower end of the bus bar 11 bent into an L shape. The flexible conductor 81 has a structure in which a braided wire is bent into a substantially S shape. On the other hand, in the socket terminal 20 </ b> A serving as the inner connection portion, a short connection piece 24 is raised from the base portion 22 of the louver terminal portion 21.

  Specifically, the L-shaped bus bar 11 constituting the terminal 80 is reversed in the front-rear direction from the first embodiment, and the upper end portion of the flexible conductor 81 is applied to the rear surface of the lower end portion of the bus bar 11. The lower end portion of the flexible conductor 81 is brought into contact with the front surface of the upper end portion of the connecting piece 24 raised from the base portion 22 of the louver terminal portion 21, and both are fixed by spot welding or the like. Therefore, in the terminal 80 of the third embodiment, the bending direction of the outer connection portion 14 and the direction of the socket terminal 20A are reversed.

  Similar to the first embodiment, the terminal 80 is mounted on the housing 30 after the socket terminal 20A as an inner connection portion is accommodated in the sub-housing 60, and the sub-housing 60 is supported so as to be freely movable in the radial direction. In order to secure a space for accommodating the substantially S-shaped flexible conductor 81 in the housing 30, the outer connection portion of each terminal 10 is arranged in a posture facing rearward on the upper surface of the housing 30 (pedestal block 40). However, there is no functional difference from the forward-facing posture.

In the third embodiment, the sub-housing 60 can be moved while deforming the flexible conductor 81 of the terminals 80, and similarly, the floating function can be more reliably exhibited.
When the inner and outer conductive members are connected via the terminal block T2 (terminal 80), the flexible conductor 81 provided in the terminal 80 functions as a vibration absorbing portion, and vibration acts on the inner conductive member or the outer conductive member. In this case, the vibration is absorbed by the flexible conductor 81, and the vibration is suppressed from reaching the opposite conductive member side.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above-described embodiment, the case where the round pin terminal is provided at the tip of the inner conductive member is illustrated, but it may be a pin terminal having an irregular cross section other than a perfect circle. The socket terminal which is the inner connection portion may be a cylindrical socket terminal having a cross-sectional shape into which the pin terminal is closely fitted.
(2) In the above embodiment, the inner conductive member extended from the motor is exemplified by enameled wires that are hardened with an adhesive, but a bus bar may be applied to the inner conductive member. The present invention is more effective when a highly rigid material such as a bus bar is applied to the inner conductive member.

(3) In the above-described embodiment, the case where the terminal block is mounted on the case of a device other than the motor case and the inverter case is illustrated. However, the terminal block may be provided in the motor case, for example. It is included in the technical scope of the present invention.
(4) In the above embodiment, a type in which the motor and the inverter are directly connected is illustrated, but the present invention can be similarly applied to a type in which the motor and the inverter are individually installed.
(5) The present invention is not limited to a motor and an inverter, and can be widely applied to all terminal blocks that electrically connect conductive members provided to extend from two electric devices.

T, T1, T2 ... Terminal block 1 ... Mission case 2 ... Case upper wall 3 ... Through hole 10 ... Terminal 11 ... Bus bar 12 ... Strip piece 14 ... Outer connection part 15 ... Insertion hole 20, 20A ... Socket terminal 30 ... Housing 31 ... Housing body 45A, 45B ... Fitting hole 46A, 46B ... Fitting groove 50 ... Cover 60 ... Sub housing 61 ... Front wall 63 ... Half cylinder part 65 ... Terminal insertion port 66 ... Lead-in part 68 ... Front rib 69 ... Rear side Rib 70 ... Terminal 71 ... Strip-shaped piece 72 ... Easy bending part 80 ... Terminal 81 ... Flexible conductor (easy bending part)
p ... Round pin terminal (pin terminal)

Claims (4)

A terminal block for connecting a plurality of inner conductive members and outer conductive members arranged inside and outside the device,
A housing provided through the inside and outside of the device case;
Mounted on the housing, a connecting portion with the outer conductive member is provided at the outer end portion, and a cylindrical socket terminal that is fitted and connected to a pin terminal provided at the inner conductive member is provided at the inner end portion. A terminal,
A sub housing in which the socket terminal is housed and a terminal insertion port into which the pin terminal can be inserted is opened, and
A terminal block, wherein the sub-housing is mounted on the housing so as to be movable in a direction crossing an axis. The terminal block according to claim 1, wherein an easy-bending portion is provided at an intermediate position in the length direction of the terminal. The terminal block according to claim 2, wherein the terminal includes a strip, and the easily bent portion is formed at an intermediate position in the length direction of the strip. The terminal block according to claim 2, wherein the bendable portion of the terminal is constituted by a flexible conductor made of a braided wire.

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