JP4509503B2 - Connection / support device for connection terminals between storage batteries for electric vehicles - Google Patents

Description

  The present invention relates to a wiring device for an electric vehicle, and more particularly to a connection / support device for a connection terminal between storage batteries for an electric vehicle.

In an electric vehicle, a large number of storage batteries for driving a motor are housed in a hollow portion such as a vehicle floor frame, and these storage batteries are connected in series in order to obtain a voltage (300 V) necessary for driving the motor. (See Patent Document 1 below).
And these storage batteries connected in series are individually fixed to the frame or the storage battery fixing plate by a fixture, and the electrode terminals of each storage battery are connected by a copper wire or a bus bar knitted with copper wires. It has become.

FIG. 9 is a schematic plan view of such a conventional storage battery fixing and connecting device.
In this figure, 1 is a frame, 2 is a storage battery, 3 is a fixture for fixing the storage battery 2 (band-like fixture), 4 is a fastening member for fastening the fixture 3, 5 is an electrode terminal of the storage battery 2, and 6 is It is a bus bar in which copper wires connecting the electrode terminals 5 of the storage battery 2 are knitted together.
Thus, not only a large number of fixtures 3 are required to fix the storage battery 2, but also a long time is required for the work of fixing the storage battery 2 and the connection between the electrode terminals 5. Further, depending on the fixing method, the storage batteries 2 may collide with each other due to a vehicle collision accident or the like, and the storage battery 2 may be damaged.
JP-A-2002-187777 (page 3-4, FIG. 1)

As described above, in the conventional connection / support structure for connecting terminals between storage batteries, there is a problem that a long time is required for connection and support, the storage batteries collide, and the storage batteries are damaged.
In view of the above situation, the present invention has flexibility between adjacent storage batteries, and can be easily connected and supported by coupling with a connection terminal of the storage battery, and can prevent damage to the storage battery. It aims at providing the connection and support apparatus of the connection terminal between the storage batteries for electric vehicles.

According to the present invention, in order to achieve the above object,
[1] In a connection / support device for a connection terminal between storage batteries for an electric vehicle that connects / supports connection terminals of adjacent storage batteries of an electric vehicle, a plurality of storage battery connection terminals arranged toward the adjacent storage battery side this is arranged between the connection terminals, thereby connecting the connection terminals to each other, coupling the flexible connection supporting the connection terminal elastically stretch direction, and said connection terminal and the flexible connection And a flexible connecting portion comprising two bowl-shaped discs having a connecting boss at the center, and both discs are joined at the outer periphery thereof. .

[2] The connection-support device connection terminals between [1], wherein the storage battery, the connection terminals of the storage battery is an electrode terminal that is protruding from the side surface of the upper adjacent the accumulator Features.
[3] [1] connection and support device for connecting terminals between storage battery according, connection terminals of the storage battery is connected to the electrode terminals projecting from the opposite ends of the upper surface of the battery, next And a connector having a coupling portion formed on the side of the matching storage battery.

[4] In the connecting / supporting device for connecting terminals between storage batteries for an electric vehicle according to [1], the coupling portion is coupled by screw coupling having lead angles in directions opposite to each other.
[5] The connection / support device for a connection terminal between storage batteries for an electric vehicle according to [1], wherein the coupling portion is coupled by strong coupling by fitting.

[6] In the connection / support device for a connection terminal between storage batteries for an electric vehicle as described in [5] above, the coupling portion by strong coupling by the fitting is by electrical welding coupling by energization.
[ 7 ] In the connection / support device for connection terminals between storage batteries for electric vehicles according to [ 1 ] above, the connection at the outer peripheral portion is due to welding of the outer peripheral portion.

[ 8 ] In the connection / support device for a connection terminal between storage batteries for an electric vehicle according to [ 1 ], the connection at the outer peripheral portion is performed by fastening from an external connector to the outer peripheral portion. And

According to the present invention, the following effects can be achieved.
(A) Connection between storage batteries can be performed quickly and accurately.
(B) By elastically supporting between storage batteries by the flexible connection part between storage batteries, it can prevent that storage batteries collide and those storage batteries are damaged.

In the connection / support device for connection terminals between storage batteries for electric vehicles that connect / support between the connection terminals of adjacent storage batteries of the electric vehicle, the connection terminals of the plurality of storage batteries arranged toward the adjacent storage battery side, and this connection A flexible connecting portion that is disposed between the terminals, connects the connecting terminals to each other, and elastically supports the connecting terminals in the extending and contracting direction; and a coupling portion that couples the connecting terminals and the flexible connecting portion. The flexible connecting portion is composed of two bowl-shaped disc bodies having a connecting boss portion at the center, and both discs are coupled at the outer peripheral portion thereof. Therefore, the storage battery can be connected and supported easily, and damage to the storage battery is prevented.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a state in which a storage battery is mounted on a frame according to an embodiment of the present invention, FIG. 2 is a top view showing a connection / support state of the storage battery according to the first embodiment, and FIG. It is a side surface schematic diagram which shows the method of support.
In these drawings, 11 is a frame, 12 is a storage battery (battery), 13 is an electrode terminal projecting on an adjacent side surface of the storage battery 12, and 14 and 14 'are inner surfaces of recesses provided inside the electrode terminal 13. The female screw part 15 is a flexible connecting part. The flexible connecting part 15 has metal discs 16 and 16 'having a bowl-like shape so as to have elasticity, and the metal disc. It consists of bosses 17 and 17 'projecting from the center of 16 and 16', and male screw parts 18 and 18 'are formed on the outer periphery of the bosses 17 and 17'. The flexible connecting portion 15 is arranged such that the outer peripheral portions of the metal disks 16 and 16 ′ are joined and the boss portions 17 and 17 ′ are opposed to the electrode terminals 13. The male screw portions 18 and 18 'are screwed into the female screw portions 14 and 14', respectively. In this case, the lead angle (screw formation direction) of the female screw portion 14 and the male screw portion 18 is formed opposite to the lead angle (screw formation direction) of the female screw portion 14 'and the male screw portion 18'. ing. Therefore, in FIG. 3, first, the flexible connecting portion 15 is placed in a state in which the female screw portion 14 and the male screw portion 18 and the female screw portion 14 'and the male screw portion 18' are made to correspond to each other. When rotated, both the female screw portion 14 and the male screw portion 18 and both the female screw portion 14 'and the male screw portion 18' are screwed at the same time, and both are screwed at one time, thereby completing the connection and support. can do.

Therefore, as shown in FIG. 2, when the flexible connection part 15 is screwed between the storage batteries 12, the connection / support of the storage battery is completed.
Therefore, when an external force is applied between the storage batteries 12, the joined metal disks 16 and 16 ′ are bowl-shaped and have elasticity, so that the external force is absorbed and the impact on the storage battery 12 is reduced. The damage of the storage battery 12 can be prevented. Moreover, since the adjacent storage battery 12 is supported by the flexible connection part 15 which has the metal discs 16 and 16 ', the some connected storage battery 12 is the storage battery located in the both ends of the flame | frame 11. Only by fixing 12 with a fixing tool (not shown), the other inner storage battery 12 can be supported without being fixed with a special fixing tool.

FIG. 4 is a schematic side view showing a method for connecting and supporting the storage battery of the second embodiment of the present invention.
In this embodiment, 20 is a storage battery (battery), 21 is an electrode terminal protruding from both ends of the upper surface of the storage battery 20, 22 is a connector fixed to the electrode terminal 21, and is fixed by a fixing member 23. Male thread portions 25 and 25 'are formed on the boss portions 24 and 24' protruding from the adjacent storage battery 20 side. Reference numeral 26 denotes a flexible connecting portion. The flexible connecting portion 26 protrudes into the center of the metal discs 27 and 27 'having a bowl shape so as to have elasticity and the metal discs 27 and 27'. The boss portions 28, 28 'are provided with female screw portions 29, 29' on the inner surfaces of the recesses provided in the boss portions 28, 28 '. That is, the outer peripheral portions of the metal disks 27 and 27 ′ are joined, and the boss portions 28 and 28 ′ are arranged to face the connector 22. The male screw portions 25 and 25 'are screwed into the female screw portions 29 and 29', respectively. In this case, the lead angle (screw formation direction) of the female screw portion 25 and the male screw portion 29 is formed opposite to the lead angle (screw formation direction) of the female screw portion 25 'and the male screw portion 29'. ing. Therefore, first, when the flexible coupling portion 26 is rotated in a state where the female screw portion 25 and the male screw portion 29, and the female screw portion 25 ′ and the male screw portion 29 ′ are associated with each other (matched), Both the female screw portion 25 and the male screw portion 29, and both the female screw portion 25 'and the male screw portion 29' are screwed at the same time, and both can be screwed at one time to complete the connection and support. .

Therefore, when the flexible connecting portion 26 is screwed between the upper sides of the storage battery 20, connection / support of the storage battery 20 is completed.
Moreover, in the said Example, although the connection of the connection terminal and the flexible connection part 26 was performed by screw joining, the connection of the connection terminal and flexible connection part 26 of at least one side is carried out by strong fitting. You may make it perform.

Examples thereof will be described below.
FIG. 5 is a schematic side view showing a method for connecting and supporting a storage battery according to a third embodiment of the present invention.
In this embodiment, 30 is a storage battery (battery), 31 is an electrode terminal protruding from both ends of the upper surface of the storage battery 30, 32 is a connector fixed to the electrode terminal 31, and this connector 32 is fixed by a fixing member 33. fixed, externally threaded portion 35 is formed in the boss 3 4 projecting from the battery 30 side thereof adjacent. Reference numeral 36 denotes a flexible connecting portion. The flexible connecting portion 36 protrudes into the center of the metal discs 37 and 37 'having a bowl-like shape so as to have elasticity and the metal discs 37 and 37'. It consists of boss portions 38 and 38 'provided. The boss portion 38 of one metal disk 37 has a female screw portion 39 formed on the inner surface of a recess provided therein.

In addition, the other metal disc 37 'is joined to the metal disc 37 at the outer peripheral portion, and a boss portion 38' is provided at the center of the metal disc 37 '. A protruding fitting 39 'is formed.
On the other hand, electrode terminals 31 protrude from both ends of the upper surface of the storage battery 30 adjacent to the fitting 39 ', and a connector 32' fixed to the electrode terminal 31 is fixed by a fixing member 33 '. Yes. In addition, a fitting recess 35 ′ that fits with the fitting 39 ′ of the flexible connecting portion 36 is formed at the distal end portion 34 ′ of the connector 32 ′.

Therefore, the female threaded portion 39 of the flexible coupling portion 36 is screwed and coupled to the male threaded portion 35 of the connector 32 fixed to the storage battery 30 on the right side of FIG. The coupling 39 'is firmly connected to and supported by the fitting recess 35' of the connector 32 'fixed to the left storage battery 30 in FIG.
Thus, one can be easily connected and supported by fitting and connecting one of them.

Next, the aspect of joining the metal disks constituting the flexible connecting portion will be described in detail.
FIG. 6 is a view showing a first joining example of the metal disk.
In this figure, in a state where the outer peripheral portions 43, 43 'of the metal disks 42, 42' constituting the flexible connecting portion 41 are attached together, the outer peripheral portions 43, 43 'are heated and welded by soldering or the like. The welded joint portion 44 is obtained. In this figure, 45 and 45 'are bosses projecting from the center of the metal discs 42 and 42', and 46 and 46 'are inner peripheral surfaces of recesses provided in the bosses 45 and 45'. The female screw portion is formed so that the lead angles of the female screw portions 46 and 46 'are opposite to each other.

FIG. 7 is a view showing a second joining example of the metal disk.
In this figure, in a state where the outer peripheral portions 53, 53 'of the metal discs 52, 52' constituting the flexible connecting portion 51 are brought together, a connecting tool 54 is arranged on the outer peripheral portions 53, 53 ', and the machine Thus, the pressure bonding portion 55 is obtained by applying pressure. In this figure, 56 and 56 'are bosses protruding from the center of the metal discs 52 and 52', and 57 and 57 'are inner peripheral surfaces of recesses provided in the bosses 56 and 56'. The female screw portion is formed so that the lead angles of the female screw portions 57 and 57 'are opposite to each other.

FIG. 8 is a view showing an example of joining the flexible connecting portion and the connector of the present invention.
Similarly to the third embodiment shown in FIG. 5, when one of the flexible connecting portions 36 is joined to the storage battery 30 by fitting, the connector 32 of the right storage battery 30 is connected. The female screw portion 39 of the flexible connecting portion 36 is screwed and coupled to the male screw portion 35, and the fitting 39 'of the flexible connecting portion 36 is fitted to the connector 32' of the left storage battery 30. By firmly fitting into the recess 35 ', it is possible to connect firmly and support. Further, in order to strengthen this connection, the current-carrying connection members 61 and 62 are set on the tip 34 'and the boss 38', the switch 63 is turned on, and a current is supplied from the power source 64. You may make it perform welding between fitting recessed part 35 'and fitting 39'.

  In addition, this invention is not limited to the said Example, A various deformation | transformation is possible based on the meaning of this invention, and these are not excluded from the scope of the present invention.

  INDUSTRIAL APPLICABILITY The present invention can connect and support a plurality of storage batteries easily and can avoid collisions between storage batteries due to impact, and is suitable as a connection / support apparatus for connection terminals between storage batteries for electric vehicles.

It is a perspective view which shows the mounting state of the storage battery to the flame | frame which shows the Example of this invention. It is a top view which shows the connection and support state of the storage battery of 1st Example of this invention. It is a side surface schematic diagram which shows the connection / support method of the storage battery of 1st Example of this invention. It is a side surface schematic diagram which shows the connection / support method of the storage battery of 2nd Example of this invention. It is a side surface schematic diagram which shows the connection / support method of the storage battery of 3rd Example of this invention. It is a figure which shows the 1st joining example of the metal disc of this invention. It is a figure which shows the 2nd example of joining of the metal disc of this invention. It is a figure which shows the joining example of the flexible connection part and connector of this invention. It is a plane schematic diagram of the fixing and connecting device of the conventional storage battery.

11 Frame 12, 20, 30 Storage battery (battery)
13, 21, 31 Electrode terminal 14, 14 ', 29, 29', 39, 46, 46 ', 57, 57' Female thread portion 15, 26, 36, 41, 51 Flexible connecting portion 16, 16 ', 27, 27 ', 37, 37', 42, 42 ', 52, 52' Metal disc 17, 17 ', 24, 24', 28, 28 ', 34, 34', 38, 38 ', 45, 45 ', 56, 56' Boss part 18, 18 ', 25, 25', 35, 35 'Male thread part 22, 32, 32' Connector 23, 33, 33 'Fixing member 39' Projecting fitting 34 'Tip Part 35 'fitting recess 43, 43', 53, 53 'outer peripheral part of metal disk 44 welding joint part 54 connector 55 pressure joint part 61, 62 energizing connection member 63 switch 64 power supply

Claims (8)

In the connection / support device for connection terminals between storage batteries for electric vehicles that connect / support between the connection terminals of adjacent storage batteries of the electric vehicle,
(A) a plurality of storage battery connection terminals arranged toward the adjacent storage battery side;
(B) a flexible connecting portion that is disposed between the connection terminals, connects the connection terminals to each other, and elastically supports the connection terminals in the expansion and contraction direction;
(C) a coupling portion that couples the connection terminal and the flexible coupling portion ;
(D) The flexible connecting portion is composed of two bowl-shaped disc bodies having a connecting boss portion at the center portion, and both discs are joined at the outer peripheral portion thereof . Connection / support device for connection terminals between storage batteries.   2. The connection / support device for a connection terminal between storage batteries for an electric vehicle according to claim 1, wherein the connection terminal of the storage battery is an electrode terminal projecting on an adjacent side surface of the storage battery. Connection / support device for connection terminals between storage batteries.   2. The connection / support device for a connection terminal between storage batteries for an electric vehicle according to claim 1, wherein the connection terminal of the storage battery is an electrode terminal projecting from both ends of the upper surface of the storage battery and coupled to the adjacent storage battery side. A connecting / supporting device for connecting terminals between storage batteries for electric vehicles, comprising a connector having a portion formed thereon.   2. The connection / support apparatus for a connection terminal between storage batteries for an electric vehicle according to claim 1, wherein the coupling portion is coupled by screw coupling having lead angles in directions opposite to each other. Connection terminal support / support device.   2. The connection / support device for connection terminals between storage batteries for electric vehicles according to claim 1, wherein the coupling portion is coupled by strong coupling by fitting. Support device.   6. A connection / support device for connection terminals between storage batteries for electric vehicles according to claim 5, wherein the coupling portion by strong coupling by the fitting is by electrical welding coupling by energization. Connection terminal support / support device. The connection / support device for connection terminals between storage batteries for an electric vehicle according to claim 1 , wherein the connection at the outer periphery is by welding of the outer periphery. Support device. 2. A connection / support device for connecting terminals between storage batteries for an electric vehicle according to claim 1 , wherein the connection at the outer peripheral portion is performed by fastening from an external connector to the outer peripheral portion. Connection / support device for connection terminals between storage batteries.

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