JP6068884B2 - Battery pack terminal protection cover - Google Patents

Description

  The present invention relates to a terminal cover protective cover for a battery pack for making a high voltage on-vehicle battery unit to be mounted on, for example, an electric vehicle or a hybrid vehicle.

  High voltage vehicles such as electric vehicles and hybrid vehicles are equipped with a plurality of battery packs for configuring a high voltage on-board battery unit. This is done using a conductive member such as a bus bar. When a conductive member such as a connecting wire with terminal or a bus bar for connection is connected to the terminal of this type of battery pack, there is a problem in safety if the connection part of the terminal or conductive member is exposed to the outside. It is performed to cover with a terminal part protective cover.

  By the way, when the conductive member is connected to the terminal of the battery pack, the lead-out direction of the conductive member may be varied depending on the arrangement of the battery pack and the relationship with surrounding components. Thus, when making the drawing direction of the conductive member different, since the cost increases when the terminal part protection cover is made according to the difference in the drawing direction, it can correspond to a plurality of drawing directions that may be selected. It is considered that a protective cover having a plurality of conductive member outlets is prepared in advance, and a terminal part protective cover having the same shape is used in common regardless of the difference in the drawing direction.

  However, the number of conductive member outlets actually used is one for each terminal, and unused conductive member outlets remain open. Then, it has been found that there is a possibility that a finger, a tool, or the like may be erroneously inserted from the outside into an unused conductive member outlet during assembly or maintenance, which may cause a problem in safety.

  For example, in the case of a battery terminal cover shown in Patent Document 1 or the like, normally, only one electrical wire or bus bar outlet is provided for one terminal, and therefore, an unused conductive member. There is no such thing as an outlet, and the above problems do not occur.

JP 2010-108785 A

  As described above, when a plurality of conductive member outlets that can be selected and used are provided in the terminal protection cover, unused conductive member outlets remain open so that they can be used during assembly or maintenance. There is a risk that a finger, a tool, or the like may be erroneously inserted into the unused conductive member outlet from the outside.

  The present invention has been made in view of the above-described circumstances, and its purpose is to prevent foreign objects such as fingers and tools from being accidentally inserted into an unused conductive member outlet. An object of the present invention is to provide a terminal cover protective cover for a battery pack capable of improving safety.

The above object of the present invention can be achieved by the following constitution.
(1) A resin terminal protective cover that covers a portion where the conductive member is attached and fixed to the terminal on the upper surface of the battery pack,
A side wall that has an open upper surface so that the end of the conductive member can be attached and fixed to the terminal from above, and surrounds the periphery of the terminal when mounted on the upper surface of the battery pack. A cover body provided with a plurality of conductive member outlets capable of changing the drawing direction of the conductive member by selecting the conductive member to be used in the part;
A lid for opening and closing the upper surface of the cover body;
An opening / closing member provided on the lid that opens the conductive member outlet when in use and closes the conductive member outlet when not in use;
A battery pack terminal cover protective cover.

  (2) The battery pack terminal cover protective cover according to (1), wherein the opening / closing member is a small door connected to the lid.

(3) The terminal part of the battery pack according to (2), wherein the small door is a bowl-shaped upper opening door whose upper end is connected to the lid through a hinge and can be freely opened and closed. Protective cover.
(4) A resin terminal protective cover for covering a portion where the conductive member is attached and fixed to the terminal on the upper surface of the battery pack,
A side wall that has an open upper surface so that the end of the conductive member can be attached and fixed to the terminal from above, and surrounds the periphery of the terminal when mounted on the upper surface of the battery pack. A cover body provided with a plurality of conductive member outlets capable of changing the drawing direction of the conductive member by selecting the conductive member to be used in the part;
A lid for opening and closing the upper surface of the cover body;
An opening / closing member provided on the lid that opens each conductive member outlet when in use and closes a portion when not in use;
With
When a part of each of the conductive member outlets is closed by the opening / closing member, the height of the gap generated below the opening / closing member is a height corresponding to the thickness of the conductive member. Battery pack terminal protection cover.

  According to the terminal part protective cover having the configuration of (1) above, when connecting a plurality of battery packs in order to form a high-voltage power source by a conductive member such as a connecting wire with terminals or a bus bar for connection, By opening the body, the conductive member outlet of the protective cover body can be opened, and in this state, the end of the conductive member can be attached and fixed to the terminal of the battery pack from above. At that time, the conductive member can be pulled out from any one selected conductive member outlet.

And if a conductive member is connected to the terminal of a battery pack, the part which connected the edge part of the conductive member to the terminal can be protected by covering the cover body and closing the upper surface of the protective cover body.
Here, the opening / closing member may not completely close the conductive member outlet, but may leave an open gap through which the thin plate-like portion of the conductive member can be inserted.

  According to the terminal part protective cover of the configuration of (2) above, the opening / closing member is a small door connected to the lid, so that the conductive member is actually pulled out for the conductive member outlet in use. As a result, the small door is kept open.

  Therefore, depending on the shape of the small door, it is possible to cover the part where the conductive member is exposed from the protective cover, and the insulating protective material provided to cover the exposed part. Can be omitted, and the cost can be reduced.

  Also, other unused conductive member outlets are kept closed by a small door because the conductive member is not pulled out, and foreign objects such as fingers and tools are inserted from the outside by the small door. Can be prevented, and safety during assembly work and maintenance can be ensured.

  According to the terminal part protective cover of the configuration of (3) above, the small door that opens and closes the conductive member outlet is configured as an upper opening door that is connected to the lid through a hinge, so the conductive member is connected to the terminal. By closing the lid later, the small door hits the conductive member drawn out from the conductive member pull-out port in use, so that the small door can be automatically lifted upward in a bowl shape.

  According to the present invention, since the lid is provided with the opening / closing member that closes the plurality of conductive member outlets, the unused conductive member outlet can be covered by the opening / closing member, and the unused conductive member outlet is externally provided. Foreign matter can be prevented from entering the outlet, and safety during assembly and maintenance can be improved.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a configuration diagram of a terminal protection cover of a prerequisite technology that led to the present invention. The protection cover is attached to a battery pack, a connection wire with a terminal and a bus bar for connection (both in the vicinity of the end) as conductive members. Is a perspective view showing a state in which each of the conductive members is pulled out from the conductive member outlets on the left and right side surfaces of the terminal portion protection cover. It is. FIG. 2 is a partially enlarged perspective view of FIG. FIG. 3 is a perspective view showing a state in which the connecting electric wire with terminal is pulled out in a direction (front direction) different from FIG. FIG. 4 is a perspective view of the terminal portion protection cover according to the first embodiment of the present invention with the lid opened. FIG. 5 is a perspective view of the terminal portion protective cover with the lid closed. FIG. 6 is a front view of the terminal portion protective cover. 7A is a view as seen from an arrow A in FIG. 6, and FIG. 7B is a view as seen from an arrow B in FIG. FIG. 8 is a perspective view showing a partial configuration of the terminal portion protection cover according to the second embodiment of the present invention. FIG. 9 is a partial cross-sectional view showing a partial configuration of the terminal portion protective cover. FIG. 10 is a perspective view showing a partial configuration of the terminal protection cover before being attached to the battery pack.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. Here, before describing the terminal portion protective cover of the embodiment, FIGS. The description will be given earlier with reference to FIG.

  FIG. 1 is a configuration diagram of a terminal protection cover of a prerequisite technology that led to the present invention. The protection cover is attached to a battery pack, a connection wire with a terminal and a bus bar for connection (both in the vicinity of the end) as conductive members. Is a perspective view showing a state in which each of the conductive members is pulled out from the conductive member outlets on the left and right side surfaces of the terminal portion protection cover. 2 is a partially enlarged perspective view of FIG. 1, and FIG. 3 is a perspective view showing a state in which the connecting electric wire with terminal is pulled out in a direction (front direction) different from FIG.

  On the upper surface 1a of the battery pack 1 shown in FIG. 1, two terminals 2 of plus and minus are provided at an appropriate distance. The terminal 2 is a post having a male screw, and is fastened and fixed with a nut 3 with the end of a conductive member such as the end 5a of the connecting bus bar 5 or the terminal 6a at the end of the connecting electric wire 6 with a terminal attached. (Fixed and fixed).

  On the other hand, the resin-made terminal protection cover 10 is tightened when the end 5a of the connection bus bar 5 or the terminal 6a of the terminal-connected connecting wire 6 is fastened to the terminal 2 on the upper surface of the battery pack 1 with the nut 3. It is formed in a substantially rectangular parallelepiped shape large enough to cover both fixed terminal portions together.

  The terminal protection cover 10 has a frame shape with an open upper surface so that the end 5a of the connecting bus bar 5 and the terminal 6a of the connecting electric wire 6 with terminal can be fastened and fixed to the terminal 2 from above. The protective cover main body 11 is attached to the upper surface 1a of the battery pack 1 and the lid 16 is attached to the protective cover main body 11 to open and close the upper surface of the protective cover main body 11.

  The protective cover body 11 is for connection by selecting a conductive member to be used for the side wall portions 11a and 11b on the front side and the left and right side surfaces surrounding the periphery of the terminal 2 when the protective cover body 11 is mounted on the upper surface 1a of the battery pack 1. A plurality of conductive member outlets 12 that can change the direction of drawing out the bus bar 5 and the connecting electric wire 6 with terminals are provided. A plurality of conductive member outlets 12 are provided for one terminal 2 (in the illustrated example, two on the front side and the side surface side).

  When using this terminal protective cover 10, first, the protective cover 10 is placed so as to cover the two terminals 2 of the battery pack 1, and the protective cover 10 is attached to the battery pack 1. Next, with the lid 16 opened, the end 5a of the connecting bus bar 5 and the terminal 6a of the connecting electric wire 6 with terminals are mounted on the exposed two terminals 2 from above, and are tightened and fixed with the nut 3. At this time, as shown in FIGS. 1 and 2, the connecting bus bar 5 and the connecting electric wire 6 with terminals may be drawn out from the left and right conductive member outlets 12 depending on the form of use, as shown in FIG. As described above, the conductive member outlet 12 may be pulled out from the front.

  When the connection bus bar 5 and the connection electric wire 6 with terminals are thus connected to the terminals 2, the lid body 16 is closed. Thereby, the terminal 2 and the conductor part connected to it can be protected by the terminal part protective cover 10. In addition, the part which the conductor part of the bus bar 5 for a connection and the connection electric wire 6 with a terminal protrudes from the protective cover 10 is covered with the insulation protective material 7 as needed.

  By the way, when the conductive member (the connecting bus bar 5 or the connecting electric wire 6 with terminals) is connected to the terminal 2 as described above, one conductive member outlet 12 is sufficient for each terminal 2, so that the remaining conductive The member outlet 12 is left open in an unused state. If it does so, there exists a possibility that a finger | toe, a tool, etc. may be accidentally inserted in the unused conductive member extraction opening 12 at the time of an assembly | attachment or a maintenance.

Therefore, a first embodiment of the present invention will be described.
4 is a perspective view of the terminal part protective cover according to the first embodiment of the present invention in a state in which the cover is opened, FIG. 5 is a perspective view of the terminal part protective cover in a closed state, and FIG. 7A is a front view of the part protection cover, FIG. 7A is a view as seen from an arrow A in FIG. 6, and FIG. 7B is a view as seen from an arrow B in FIG.

  In the terminal portion protective cover 10A according to the first embodiment of the present invention, as shown in FIGS. 4 to 7B, the lid 16 is opened and closed so as to close the upper half of each conductive member outlet 12. A member 20 is provided.

  The lid 16 is engaged with the protective cover main body 11 by a hinge or the like when viewed from the front, and the front end 16b is locked by the locking means 17 to the locking means 13 on the protective cover main body 11 in the closed state. It can be done. Since the other configuration is exactly the same as the terminal part protective cover 10 of the base technology of FIGS. 1 to 3, other description is omitted.

  The opening / closing member 20 is an L-shaped plate member suspended from the back side of the lid body 16, and is provided for each terminal 2. Each open / close member 20 can simultaneously block both the front conductive member outlet 12 and the left or right conductive member outlet 12. Each opening / closing member 20 is formed to have a size capable of closing a substantially upper half region of the conductive member outlet 12. When the lid 16 is closed, the opening / closing member 20 is connected to the conductive member outlet 12. The upper half can be closed. And only the thin-plate-like end portions 5a and 6a of the conductive member can be inserted under the opening / closing member 20. Since the conductive member outlet 12 used for one terminal 2 is one of the front side or the side surface, the conductive member outlet 12 on the unused side has a gap remaining below the opening / closing member 20. .

  According to the terminal part protective cover 10A of the first embodiment, when connecting a plurality of battery packs 1 in order to make a high-voltage power source by means of conductive members such as the terminal-attached connecting wire 6 and the connecting bus bar 5 or the like. In addition, by opening the cover 16, the conductive member outlet 12 of the protective cover body 11 can be opened, and in this state, the end of the conductive member is connected to the terminal 2 of the battery pack 1 from above. Can be fixed. At that time, the conductive member can be pulled out from any one selected conductive member outlet 12. And if a conductive member is connected to the terminal of the battery pack 1, the cover 16 will be covered and the upper surface of the protective cover main body 11 will be closed, and the part which connected the edge part of the conductive member to the terminal 2 can be protected. .

  In addition, with respect to one unused conductive member outlet 12, a gap is formed below the opening / closing member 20 because the conductive member is not pulled out, but this gap is a thin plate-like portion 5 a of the conductive member. , 6a can be inserted, so that foreign objects such as fingers and tools can be prevented from being inserted from the outside.

Next, a second embodiment of the present invention will be described.
FIG. 8 is a perspective view showing a partial configuration of the terminal protection cover according to the embodiment, FIG. 9 is a partial cross-sectional view showing a partial configuration of the terminal protection cover, and FIG. It is a perspective view which shows the partial structure of this state.

  In the terminal part protective cover 10B which is 2nd Embodiment of this invention, as shown in FIGS. 8-10, the small door 15 is provided so that the outer side of each electrically-conductive member extraction port 12 may be covered. The lid 16 is engaged with the protective cover main body 11 by a hinge or the like when viewed from the front, and the front end 16b is locked by the locking means 17 to the locking means 13 on the protective cover main body 11 in the closed state. It can be done. Other configurations are the same as those of the terminal part protective cover 10 of the base technology of FIGS.

  Each of the small doors 15 is connected to a lid 16 and serves to open each conductive member outlet 12 when used and close when not used. In this case, the small door 15 is configured as a bowl-shaped upper opening door whose upper end is connected to the lid body 16 via a hinge 15a and can be opened and closed in the vertical direction.

  According to the terminal part protective cover 10B of this embodiment, when connecting a plurality of battery packs 1 in order to make a high-voltage power source by a conductive member such as a connecting wire 6 with terminals and a bus bar 5 for connection, By opening the lid 16, the conductive member outlet 12 of the protective cover body 11 can be opened, and in this state, the end of the conductive member is attached and fixed to the terminal 2 of the battery pack 1 from above. can do. At that time, the conductive member can be pulled out from any one selected conductive member outlet 12. And if a conductive member is connected to the terminal of the battery pack 1, the cover 16 will be covered and the upper surface of the protective cover main body 11 will be closed, and the part which connected the edge part of the conductive member to the terminal 2 can be protected. .

  At that time, as for the conductive member outlet 12 in use, the small door 15 automatically lifts upward in the shape of a bowl because the conductive member is actually pulled out and the small door 15 hits the conductive member. Will be kept open. Therefore, depending on the shape of the small door 15, the small door 15 in the open state can cover the portion where the conductive member is exposed from the protective cover 10B, and is provided to cover the exposed portion. The use of an insulating protective material can be omitted, and the cost can be reduced.

  In addition, the one unused conductive member outlet 12 is kept closed by the small door 15 because the conductive member is not pulled out. Foreign matter can be prevented from being inserted, and safety during assembly work and maintenance can be ensured.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, in the above embodiment, the number of conductive member outlets 12 is two for one terminal 2, but another three in total may be provided on the side opposite to the front, or more than that. Good.

  Here, the features of the above-described embodiment of the battery pack terminal protection cover according to the present invention will be briefly summarized in [1] to [3] below.

[1] A resin terminal protective cover (10) that covers a portion where the conductive member (5, 6) is attached and fixed to the terminal (2) on the upper surface (1a) of the battery pack (1),
The battery pack (1) has a frame shape with an open upper surface so that the end portions (5a, 6a) of the conductive members (5, 6) can be attached and fixed to the terminals (2) from above. By selecting the conductive member (5, 6) to be used for the side wall (11a, 11b) surrounding the periphery of the terminal (2) when mounted on the upper surface (1a) of the conductive member (5 , 6) a cover main body (11) provided with a plurality of conductive member outlets (12) capable of varying the extraction direction;
A lid (16) for opening and closing the upper surface of the cover body (11);
Opening and closing members (20, 15) provided on the lid (16), which open the conductive member outlets (12) when used and close when not used.
A battery pack terminal protection cover (10A, 10B).

  [2] The battery pack terminal protection cover (10B) according to [1], wherein the opening / closing member is a small door (15) connected to the lid (16).

  [3] The small door (15) is a bowl-shaped upper opening door whose upper end is connected to the lid (16) via a hinge (15a) and can be opened and closed. ] The battery pack terminal part protective cover (10B).

DESCRIPTION OF SYMBOLS 1 Battery pack 1a Upper surface 2 Terminal 5 Bus bar for connection (conductive member)
5a End 6 Electric wire with terminal (conductive member)
6a terminal (end)
10, 10A, 10B Terminal part protective cover 11 Protective cover main body 11a, 11b Side wall part 12 Conductive member outlet 15 Small door 15a Hinge 16 Lid 20 Opening / closing member

Claims (4)

It is a resin terminal protection cover that covers the portion where the conductive member is attached and fixed to the terminal on the upper surface of the battery pack,
A side wall that has an open upper surface so that the end of the conductive member can be attached and fixed to the terminal from above, and surrounds the periphery of the terminal when mounted on the upper surface of the battery pack. A cover body provided with a plurality of conductive member outlets capable of changing the drawing direction of the conductive member by selecting the conductive member to be used in the part;
A lid for opening and closing the upper surface of the cover body;
An opening / closing member provided on the lid that opens the conductive member outlet when in use and closes the conductive member outlet when not in use;
A battery pack terminal cover protective cover.   2. The battery pack terminal cover according to claim 1, wherein the opening / closing member is a small door connected to the lid.   3. The battery pack terminal protection cover according to claim 2, wherein the small door is a bowl-shaped upper opening door that has an upper end connected to the lid through a hinge and is openable and closable. It is a resin terminal protection cover that covers the portion where the conductive member is attached and fixed to the terminal on the upper surface of the battery pack,
  A side wall that has an open upper surface so that the end of the conductive member can be attached and fixed to the terminal from above, and surrounds the periphery of the terminal when mounted on the upper surface of the battery pack. A cover body provided with a plurality of conductive member outlets capable of changing the drawing direction of the conductive member by selecting the conductive member to be used in the part;
  A lid for opening and closing the upper surface of the cover body;
  An opening / closing member provided on the lid that opens each conductive member outlet when in use and closes a portion when not in use;
  With
  When a part of each of the conductive member outlets is closed by the opening / closing member, the height of the gap generated below the opening / closing member is a height corresponding to the thickness of the conductive member. Battery pack terminal protection cover.

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