JP4313290B2 - Connecting terminal - Google Patents

Description

  The present invention relates to an improvement of a connection terminal.

As a conventional connection terminal, one in which an end of a braid placed on an electric wire is electrically connected to a device-side case through a shield shell is known (for example, see Patent Document 1).
JP 2003-317876 A

FIG. 4 of Patent Document 1 will be described with reference to FIG. In addition, the code | symbol was reassigned.
FIG. 10 is a cross-sectional view showing a conventional connection terminal. In the shield connector 120, the electric wire 121 and a part of the flat plate terminal 122 connected to the tip of the electric wire 121 are covered with a braid 123. Is held between the shield shell 124 and the braided holder 126.

  The shield shell 124 is a member subjected to press drawing processing including a cup-shaped base portion 127 and a body portion 128 formed on the bottom of the base portion 127. The base portion 127 is bolted (not shown) to the outer plate case 131 of the motor. ). Reference numeral 133 denotes a housing formed by molding the tip of the electric wire 121 and a part of the flat terminal 122, 134 denotes a bracket insert-molded to the housing 133, and 135 denotes a fastening bolt for attaching the bracket 134 to the outer plate case 131. It is.

  In order for the shield shell 124 to house the housing 133, the bracket 134, and the fastening bolt 135 in the base portion 127, it is necessary to form the base portion 127 in a bag shape that matches the housing 133, the bracket 134, and the fastening bolt 135. In addition, since it is necessary to narrow down the base 127 and the body 128 in two steps, the manufacturing cost of the shield shell 124 increases.

  Also, when handling three-phase alternating current, connectors with different shapes for each phase are used to prevent incorrect assembly so that connectors for each phase (for example, male connectors) are not connected to connectors for other phases (for example, female connectors). Although a housing is generally used, a resin connector housing requires a plurality of molds for molding the connector housing, which increases the manufacturing cost of the connector housing.

  The objective of this invention is reducing the manufacturing cost of a shield shell and a connector housing by improving a connection terminal.

The invention according to claim 1 includes a device-side connector provided on the device side, and a conductor-side connector provided on the conductor side for electrical connection to the device-side connector, and covers the conductor with a braid and Is connected to the device via the shield shell, and the connection terminal for preventing electromagnetic waves radiated from the conductor from leaking to the outside is provided with a concave fitting portion in the device around the device-side connector. A flange portion is formed on the connector housing that houses the leading end portion of the conducting wire, and the flange portion is fitted to the concave fitting portion, and a shield shell is pressed against the flange portion and the edge of the concave fitting portion so that the connector housing A flange portion and an outer side protruding portion that protrudes outward from the flange portion and is covered with a shield shell, the shield shell including the flange portion It consists of a flat plate part applied to the edge of the concave fitting part and a cylindrical part molded on this flat plate part, the cylindrical part is fitted to the external protruding part, and the flat plate part extends along the side surface of the flange part. Bolt insertion holes are drilled in the flat plate portion and the flange portion, and the bolts are passed through the respective bolt insertion holes in the flat plate portion and the flange portion and screwed into the female screw at the bottom of the concave fitting portion. The conductor side connector is attached to the case, and the end of the flat plate portion is brought into contact with the edge of the concave fitting portion formed in the case .

  By fitting the flange part of the conductor side connector to the concave fitting part on the equipment side and pressing the shield shell against the flange part and the edge of the concave fitting part, for example, the conductor side to the equipment side via the shield shell Attach the connector and connect the braid to the equipment through the shield shell to ground.

The invention according to claim 2 is provided with a plurality of parts for providing a device-side connector or a plurality of concave fitting parts, and the shape of one concave fitting part corresponds to the shape of one flange part. It is characterized by doing.
One corresponding flange portion is connected to one concave fitting portion, and another one corresponding flange portion is connected to the other one concave fitting portion to prevent erroneous assembly.

The invention according to claim 3 is characterized in that the dimension of the thickness of the flange part is the same as the dimension of the depth of the concave fitting part or the dimension of the thickness of the flange part is smaller.

The invention according to claim 4 is characterized in that the bolt insertion hole of the flange portion is formed in a metal collar embedded in the flange portion.

The invention according to claim 5 is characterized in that the conductor-side connector includes a resin connector housing, and a flange portion is integrally formed with the connector housing.

  In the invention according to claim 1, since the flange portion is fitted to the concave fitting portion and the shield shell is pressed against the flange portion and the edge of the concave fitting portion, the shape of the shield shell is changed to the flange portion. A simple shape that presses against the edge around the concave fitting portion, for example, a shape including a flat plate portion, can simplify the shape of the shield shell, reduce the manufacturing cost of the shield shell and improve the productivity be able to.

  In the invention according to claim 2, since the shape of one concave fitting portion corresponds to the shape of one flange portion, it is possible to prevent erroneous assembly of the conductor side connector to the device side connector, Since the concave fitting part is provided in the device, it is not necessary to form the shape of the device side connector so as to correspond to the shape of the conductor side connector, each device side connector can be shared, and the manufacturing cost of the device side connector is reduced. Can be reduced.

In the invention which concerns on Claim 3, the dimension of the thickness of a flange part is the same as the dimension of the depth of a concave fitting part, or the dimension of the thickness of a flange part is smaller.

In the invention which concerns on Claim 4, the bolt insertion hole of the flange part is opened in the metal color | collars embedded at the flange part.

In the invention according to claim 5, the conductor-side connector includes a resin connector housing, and a flange portion is formed integrally with the connector housing.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is an explanatory diagram of a vehicle that employs a connection terminal according to the present invention (the arrow (FRONT in the figure indicates the front of the vehicle)), and the vehicle 10 includes at least a pair of left and right wheels (front wheels 11, 12, or An electric motor 16 for driving the rear wheels 13, 14), a fuel cell stack 17 and a capacitor 18 for supplying electric power to the electric motor 16, and supply from the fuel cell stack 17 and the capacitor 18 to the electric motor 16. The fuel cell vehicle includes a power control unit 21 that controls electric power (hereinafter simply referred to as “PCU21”).

  The electric motor 16 and the PCU 21 are connected by three cables 23, 24 and 25 in order to handle three-phase alternating current, and these cables 23 to 25 are each provided with the following connectors at their ends.

  That is, 27 to 29 are motor side connector portions 30 (27 is a U phase connector, 28 is a V phase connector, 29 is a W phase connector), 31 to 33 are PCU side connector portions 35 (31 is a U phase connector, 32 is a V phase connector). Phase connector 33 is a W-phase connector).

  FIG. 2 is a perspective view showing the PCU-side connector portion (connector connection state) according to the present invention. Each female connector (not shown) provided on the PCU 21 side has a U-phase male connector 36, a V-phase male connector 37, and W It shows that the corresponding male connector 38 is connected.

  The U-phase male connector 36 is grounded by connecting a braid 41 covered with a conductor 74 covered with an insulator to a metal case 21 a of the PCU 21 via a metal shield shell 42, and is emitted from the conductor 74. This prevents electromagnetic waves from leaking outside.

  The V-phase male connector 37 and the W-phase male connector 38 have substantially the same structure as the U-phase male connector 36 (the difference will be described later). In order to make the structure of the W-phase male connector 38 easier to understand. In FIG. 3, the braid 41 and the shield ring 43 for caulking the braid 41 are omitted.

  The cable 23 includes a conductive wire 74 and a braid 41 that covers the conductive wire 74, and the cables 24 and 25 (see FIG. 1 for the cable 25) have the same structure as the cable 23. Reference numerals 45 and 46 denote male connectors 36 to 38, specifically bolts for attaching the shield shells 42 to the case 21a.

  FIG. 3 is a perspective view showing the PCU-side connector portion (connector non-connected state) according to the present invention. A plurality of concave fitting portions 51 to 53 are formed in the case 21a of the PCU 21, and these concave fitting portions 51 to 51 are formed. A U-phase female connector 55, a V-phase female connector 56, and a W-phase female connector 57 are attached to the bottom of 53, a U-phase male connector 36 is attached to the U-phase female connector 55, and a V-phase male connector 37 is attached to the V-phase female connector 56. , W-phase female connector 57 is connected to W-phase male connector 38, respectively. The male connectors 36 to 38 are shown without the braid 41, the shield shell 42, and the shield ring 43 shown in FIG.

  The U-phase male connector 36 includes a resin connector housing 61 that accommodates a male male contact (not shown). A flange 62 is integrally formed with the connector housing 61, and a protrusion is formed on the flange 62. 62a was integrally molded. The protrusion 62a is a portion formed in a shape that fits into a recess 51a formed on the side wall of the concave fitting portion 51 of the case 21a.

  The V-phase male connector 37 includes a connector housing 61. A flange portion 63 is formed integrally with the connector housing 61, and protrusions 63a and 63b are formed integrally with the flange portion 63. Structures other than the flange portion 63 are as follows. This is the same as the U-phase male connector 36. The protrusions 63a and 63b are portions formed in a shape that fits into the recessed portions 52a and 52b formed on the side wall of the concave fitting portion 52 of the case 21a.

  The W-phase male connector 38 includes a connector housing 61. A flange portion 64 is formed integrally with the connector housing 61, and a protrusion 64a is formed integrally with the flange portion 64. The structure other than the flange portion 64 is a U-phase. The male connector 36 is the same. The protrusion 64a is a portion formed in a shape that fits into a recess 53a formed on the side wall of the concave fitting portion 53 of the case 21a.

The concave fitting part 51 described above includes a hollow part 51a, the concave fitting part 52 includes hollow parts 52a and 52b, and the concave fitting part 53 includes a hollow part 53a.
Further, the flange portion 62 includes a protrusion 62a, the flange portion 63 includes protrusions 63a and 63b, and the flange portion 64 includes a protrusion 64a.

  Here, 65 is a screw to be formed on each bottom surface 51c, 52c, 53c of the concave fitting portions 51 to 53 for screwing the bolt 45 (see FIG. 2), and 66 is to screw the bolt 46 (see FIG. 2). A screw is formed on the end surface 21b of the case 21a.

  FIG. 4 is a cross-sectional view of the U-phase connector according to the present invention. The U-phase connector 31 includes a U-phase female connector 36, a U-phase female connector 55, and a case 21a for attaching the U-phase female connector 55 to the case 21a. The thick portion 21c is thicker than the other portions, and bolts 45 and 46 (see FIG. 2 for reference numeral 46) for attaching the U-phase male connector 36 to the thick portion 21c. Note that the V-phase connector 32 (see FIG. 2) and the W-phase connector 33 (see FIG. 2) have these recesses 52a, 52b, 53a (see FIG. 3) and protrusions 63a, 63b, 64a (see FIG. 3). However, only the difference from the recess 51a (see FIG. 3) and the protrusion 62a (see FIG. 3) of the U-phase connector 31 is the same as the U-phase connector 31.

  Thus, the U-phase connector 31, the V-phase connector 32, and the W-phase connector 33 each include the thick portion 21c and the bolts 45 and 46 of the case 21a, and the concave fitting portions 51 to 53 (concave shape) are formed in the thick portion 21c. The fitting parts 52 and 53 are characterized in that they are formed as shown in FIG.

  The U-phase female connector 55 includes a female contact 67 that can contact the male contact on the U-phase male connector 36 side, and a connector housing 68 that houses the tip of the female contact 67. The connector housing 68 is attached to the case 21. It is a thing. The V-phase female connector 56 (see FIG. 3) and the W-phase female connector 57 (see FIG. 3) have the same structure as the U-phase female connector 55 described above. Reference numeral 72 denotes an O-ring that seals between the connector housing 68 and the mounting hole 21d opened for mounting the U-compatible connector 55 to the case 21a.

  The U-phase male connector 36 includes a male contact (not shown) that can contact the female contact 67 on the U-phase female connector 55 side, and an insertion portion 61a that houses the male contact and inserts the tip into the U-phase female connector 55. Connector housing 61, a flange portion 62 formed on the connector housing 61, and a shield shell that is placed on the outer side protruding portion 61b of the connector housing 61 that protrudes more outward than the flange portion 62 and is applied to the flange portion 62 42 and a shield ring 43 for fixing the braid 41 covering the shield shell 42 by crimping. Reference numeral 74 denotes a conductive wire connected to the male contact in the connector housing 61.

The flange portion 62 is a portion in which a metal collar 76 is embedded, and the bolt 45 is passed through a bolt insertion hole 76 a formed in the collar 76.
The shield shell 42 includes a flat plate portion 42 a that contacts the flange portion 42 and the edge portion 21 e of the concave fitting portion 51, and a cylindrical portion 42 b that is integrally formed at the center of the flat plate portion 42 a. Is fitted to the outer protruding portion 61b.

  The flat plate portion 42a is a portion in which a pair of bolt insertion holes 42c and 42c are opened. The U-phase male connector 36 is attached to the case 21, and the end portion is brought into contact with the edge portion 21 e of the case 21 so that the braid 41 and the case 21 are electrically connected.

  The side surface 62b on the shield shell 42 side of the flange portion 62 is located on the same plane as the end surface 21b of the edge portion 21e of the case 21a, or slightly closer to the bottom surface 51c side of the concave fitting portion 51 than the end surface 21b. Part. That is, the thickness dimension in the connecting direction of the flange portion 42 is the same as the depth dimension of the concave fitting portion 51 or the thickness dimension of the flange portion 62 is smaller. The gap between 62 and the shield shell 42 is filled. By providing such a side surface 62b, electrical conduction between the shield shell 42 and the edge portion 21e is ensured.

  As described above, according to the present invention, first, a U-phase female connector 55 as a device-side connector provided on the PCU 21 as a device, and a conductive wire for electrical connection to the U-phase female connector 55 are provided. And a U-phase male connector 36 as a conductor-side connector provided on the side of the conductor 74. The conductor 74 is covered with the braid 41 and is connected to the PCU 21 via the shield shell 42 to radiate from the conductor 74. In the U-phase connector 31 as a connection terminal for preventing electromagnetic waves from leaking to the outside, a concave fitting portion 51 is provided in the case 21a around the U-phase female connector 55, and the leading end portion of the conducting wire 74 of the U-phase male connector 36 is provided. A flange portion 62 is formed in the connector housing 61 to be accommodated, and the flange portion 62 is fitted into the concave fitting portion 51. Characterized in that pressing the shield shell 42 in the edge portion 21e of the fitting portion 51.

  Since the flange portion 62 is fitted to the concave fitting portion 51 and the shield shell 42 is pressed against the flange portion 62 and the edge portion 21e of the concave fitting portion 51, the shape of the shield shell 42 is changed to the flange portion 62. A simple shape that presses against the peripheral edge 21e of the concave fitting portion 51, for example, a shape including a flat plate portion 42a, and a bag-shaped portion is formed in the shield shell by deep drawing or the like as in the prior art. This eliminates the need to simplify the shape of the shield shell 42, thereby reducing the manufacturing cost of the shield shell 42 and improving the productivity.

  FIG. 5 is an explanatory view showing the fitting of the concave fitting portion on the case side and the flange portion on the male connector side according to the present invention, and the portions shown by bold lines are the depressions 51a, 52a, 52b, 53a, projecting portions 62a, 63a, 63b, 64a on the male connectors 36 to 38 side.

  The flange portion 62 on the U-phase male connector 36 side and the protrusion 62 a provided on the flange portion 62 are engaged with the concave fitting portion 51 on the U-phase female connector 55 side and the recessed portion 51 a provided on the concave fitting portion 51. .

  Further, the flange portion 63 on the V-phase male connector 37 side and the protrusions 63a and 63b provided on the flange portion 63 are the concave fitting portion 52 on the V-phase female connector 56 side and the hollow portion 52a provided on the concave fitting portion 52. , 52b.

  Further, the flange portion 64 on the W-phase male connector 38 side and the protrusion 64 a provided on the flange portion 64 are fitted into the concave fitting portion 53 on the W-phase female connector 57 side and the recessed portion 53 a provided on the concave fitting portion 53. Match.

  That is, the shape of one concave fitting portion 51 corresponds to the shape of one flange portion 62, the shape of one concave fitting portion 52 corresponds to the shape of one flange portion 63, and one concave fitting portion. The shape of the joint portion 53 corresponds to the shape of one flange portion 64.

  Further, the U-phase female connector 55 and the concave fitting portion 51 are used as a U-phase case side connector portion 81, the V-phase female connector 56 and the concave fitting portion 52 are used as a V-phase case side connector portion 82, and a W-phase female connector 57 and If the concave fitting portion 53 is a W-phase case side connector portion 83, the U-phase case side connector portion 81 corresponds to the U-phase male connector 36, and the V-phase case side connector portion 82 corresponds to the V-phase male connector 37. The W-phase case side connector portion 83 corresponds to the W-phase male connector 38.

  FIG. 6 is an explanatory view showing a comparative example of fitting between a female connector and a male connector. A U-phase female connector 102, a V-phase female connector 103, and a W-phase female connector 104 are attached to the case 101, and the U-phase female connector 102 is attached. It shows that the U-phase male connector 106 is connected, the V-phase female connector 107 is connected to the V-phase female connector 103, and the W-phase male connector 108 is connected to the W-phase female connector 104.

  A portion indicated by a thick line in each female connector 102 to 104 is a concave fitting portion 102B formed integrally with the connector housing 102A of the U-phase female connector 102, and a concave fitting portion integrally formed with the connector housing 103A of the V-phase female connector 103. 103B, a concave fitting portion 104B formed integrally with the connector housing 104A of the W-phase female connector 104 is shown.

  In addition, the portions indicated by bold lines in the male connectors 106 to 108 are the protrusions 106B and the concave fitting portions 103B integrally formed on the connector housing 106A of the U-phase male connector 106 for fitting into the concave fitting portions 102B. A protrusion 107B formed integrally with the connector housing 107A of the V-phase male connector 107 for fitting, and a protrusion 108B integrally formed with the connector housing 108A of the W-phase male connector 108 for fitting with the concave fitting part 104B. is there.

  Thus, the U-shaped female connector 102 is formed with a concave fitting portion 102B, the V-shaped female connector 103 is formed with a concave fitting portion 103B, and the W-shaped female connector 104 is formed with a concave fitting portion 104B. By forming the protrusion 107B on the portion 106B, the V-phase male connector 107, and the protrusion 108B on the W-phase male connector 108, it is possible to prevent erroneous assembly of the male connectors 106-108 to the female connectors 102-104. For example, when the connector housings 102A to 104A of the female connectors 102 to 104 are made of resin, separate molds are required to mold these connector housings 102A to 104A, which increases costs.

  On the other hand, in this invention, as shown in FIG. 5, each recessed connector 55-57 is provided by providing the recessed part 51a, 52a, 52b, 53a in the recessed fitting part 51-53 formed in case 21a. Therefore, it is not necessary to form portions having different shapes for preventing wrong assembly, and the female connectors 55 to 57 can be shared with the same structure.

  As described above with reference to FIG. 5, secondly, according to the present invention, is the PCU 21 provided with a plurality of thick portions 21c as portions where the U-phase female connector 55, the V-phase female connector 56, and the W-phase female connector 57 are provided? Alternatively, a plurality of concave fitting parts, such as concave fitting parts 51, 52, 53, are provided, and the shape of one concave fitting part 51 corresponds to the shape of one flange part 62, and one concave fitting part. The shape of the portion 52 corresponds to the shape of one flange portion 63, and the shape of one concave fitting portion 53 corresponds to the shape of one flange portion 64.

  Since the shape of one concave fitting portion corresponds to the shape of one flange portion, it is possible to prevent erroneous assembly of each male connector 36 to 38 to each female connector 55 to 57, and to the PCU 21. Since the concave fitting portions 51 to 53 are provided, it is not necessary to form the female connectors 55 to 57 so as to correspond to the male connectors 36 to 38, and the female connectors 55 to 57 can be shared. The manufacturing cost of each female connector 55-57 can be reduced.

The procedure for assembling the PCU side connector described above will be described below with the U-phase connector 31 as a representative example.
FIG. 7 is a first operation diagram showing the assembly procedure of the U-phase connector according to the present invention, and the first half of the assembly of the U-phase male connector 36 will be described.
As shown by the arrow, the cylindrical portion 42b of the shield shell 42 is put on the outer side protruding portion 61b of the connector housing 61. Next, the end portion 41 a of the braid 41 is fitted into the cylindrical portion 42 b of the shield shell 42.

FIG. 8 is a second action view showing the assembly procedure of the U-phase connector according to the present invention, and the second half of the assembly of the U-phase male connector 36 will be described.
A shield ring 43 is fitted into the end 41a of the braid 41 at a portion located radially outward of the cylindrical portion 42b of the shield shell 42, and the shield ring 43 is crimped as shown by the arrow. The braid 41 is fixed to the shield shell 42 and the shield shell 42 is electrically connected to the braid 41.

FIG. 9 is a third operation view showing the procedure for assembling the U-phase connector according to the present invention, and shows the procedure for assembling the U-phase male connector 36 to the U-phase case side connector portion 81.
First, the flange portion 62 of the U-phase male connector 36 is fitted into the concave fitting portion 51 of the case 21a. Next, the two bolts 45 are respectively passed through the bolt insertion hole 42c opened in the shield shell 42 of the U-phase male connector 36 and the bolt insertion hole 76a of the flange portion 62, and screwed into the female screw 65 of the case 21a. This completes the assembly of the U-phase male connector 36 to the U-phase case side connector portion 81. Further, the bolt 46 (see FIG. 2) is tightened to ensure the fixing and conduction of the shield shell 42.

In addition, although the connection terminal of this invention was applied to the power control unit side in embodiment, you may apply not only to this but to the electric motor side.
Further, although the female connector on the PCU side and the male connector on the cable side are applied, the present invention is not limited to this, and a connector on the PCU side and a female connector on the cable side may be applied.

  Furthermore, about the manufacturing method (connection procedure shown in FIGS. 7 to 9) of the connection terminal, a conducting shell is covered with a shield shell and crimped by a shield ring. Thereafter, the connector housing may be set.

  The connection terminal of this invention is suitable for connecting between apparatuses, such as a two-wheeled vehicle and a four-wheeled vehicle.

It is explanatory drawing of the vehicle which employ | adopted the connection terminal which concerns on this invention. It is a perspective view which shows the PCU side connector part (connector connection state) which concerns on this invention. It is a perspective view which shows the PCU side connector part (connector non-connecting state) which concerns on this invention. It is sectional drawing of the U-phase connector which concerns on this invention. It is explanatory drawing which shows fitting with the concave fitting part by the side of a case which concerns on this invention, and the flange part by the side of a male connector. It is explanatory drawing which shows the comparative example of fitting with a female connector and a male connector. It is the 1st operation view showing the assembly point of the U phase connector concerning the present invention. It is a 2nd operation | movement figure which shows the assembly | attachment point of the U-phase connector which concerns on this invention. It is a 3rd operation | movement figure which shows the assembly | attachment point of the U-phase connector which concerns on this invention. It is sectional drawing which shows the conventional connection terminal.

21 ... Equipment (power control unit), 21a ... Case, 21c ... Site where equipment side connector is provided (thick part), 21e ... Edge, 27, 28, 29 ... Connection terminal (U-phase connector, V-phase connector, W Phase connector), 36, 37, 38 ... conductor side connector (U phase male connector, V phase male connector, W phase male connector), 41 ... braid, 42 ... shield shell, 42a ... flat plate portion, 42b ... cylindrical portion, 42c , 76a ... Bolt insertion hole, 45 ... Bolt, 51 , 52 , 53 ... Concave fitting, 55, 56, 57 ... Equipment side connector (U-phase female connector, V-phase female connector, W-phase female connector), 61 ... Connector housing 61b ... External side protrusion 62 , 63 , 64 ... Flange 62a, 63a, 63b, 64a ... Projection 62b ... Side of flange 65, Female thread , 74 ... wire, 76 ... color.

Claims (5)

A device-side connector provided on the device side, and a conductor-side connector provided on the conductor side for electrical connection to the device-side connector, covering the conductor with a braid and covering the braid via the shield shell In the connection terminal that prevents electromagnetic waves radiated from the conducting wire from leaking outside by connecting to the device,
A concave fitting portion is provided in the device around the device-side connector, a flange portion is formed in a connector housing that accommodates a leading end portion of the conductive wire of the conductive wire-side connector, and the flange portion is fitted into the concave fitting portion. And pressing the shield shell against the flange portion and the edge of the concave fitting portion ,
The connector housing includes the flange portion and an outer side protruding portion that protrudes to the outer side than the flange portion and is covered with the shield shell,
The shield shell includes a flat plate portion applied to the flange portion and an edge of the concave fitting portion, and a cylindrical portion formed on the flat plate portion,
The tube portion is fitted to the external protrusion, and the flat plate portion extends along the side surface of the flange portion,
Bolt insertion holes are made in the flat plate portion and the flange portion, and the bolts are passed through the respective bolt insertion holes of the flat plate portion and the flange portion and screwed into the female screw at the bottom of the concave fitting portion, thereby A connection terminal , wherein the conductor side connector is attached to a metal case, and an end portion of a flat plate portion is brought into contact with an edge portion of the concave fitting portion formed in the case .   The device includes a plurality of portions for providing the device-side connector, or includes a plurality of concave fitting portions, and the shape of one concave fitting portion corresponds to the shape of one flange portion. The connection terminal according to claim 1, wherein: The connecting terminal according to claim 1 or 2, wherein the thickness of the flange portion is the same as the depth of the concave fitting portion or the thickness of the flange portion is smaller. 4. The connection terminal according to claim 1, wherein the bolt insertion hole of the flange portion is formed in a metal collar embedded in the flange portion. 5. The connection terminal according to any one of claims 1 to 4, wherein the conductor-side connector includes the connector housing made of resin, and the flange portion is integrally formed with the connector housing. .

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