JPH11208287A - Battery fixing unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exactly fix many batteries through a battery box as well as to facilitate checking and maintaining a battery in a vehicle provided with an electric motor for running. SOLUTION: In this battery unit, a battery box 1 has frame brackets 3 which extend parallel to both sides of the bottom face thereof, and a battery chamber 2 has a guide rail 5 which receives the frame bracket 3 and guides the battery box 1 to an accommodating direction via the frame bracket 3. Each frame bracket 3 has a locking pin 6 which can advance to or retreat from the guide rail 5 through an axial hole 7 which penetrates in an orthogonal direction thereof, and the guide rail 5 has a pin hole 8 into which the locking pin 6 can be inserted at an accommodating position of the battery box 1. At the rear end portion toward the accommodating direction of the battery box 1, an operation handle 12 rotatable on a rotating shaft and link mechanisms 13, 14 which synchronically advance and retreat the locking pin 6 in accordance with rotation of the operation handle 12 between the rotational shaft and each locking pin 6 are installed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a battery fixing device for a hybrid electric vehicle or the like.

[0002]

2. Description of the Related Art Conventionally, a hybrid electric vehicle in which an engine and an electric motor are combined to improve exhaust emission has been known.

[0003] Such a hybrid electric vehicle includes a generator driven by an engine, and a battery for storing the generated power, and travels by using these as a power source and driving an electric motor via an inverter.

[0004]

In such vehicles, a large number of batteries are used. From the viewpoint of efficient maintenance and inspection, these batteries may be collectively stored as a battery unit in a battery box and stored in a battery compartment on the vehicle body side.
In such a case, if the battery box moves due to vibrations or the like during traveling of the vehicle, it may cause damage to the harness or loosen the terminal. Therefore, the battery box must be firmly fixed to the vehicle body.

[0005] As a battery fixing device, a battery is installed between a plurality of cross members, and a projection is provided at a lower portion of the front surface of the battery. (See Japanese Patent Laid-Open No. 6-32).
8946). In this example, when the last bolt is tightened, each battery is sequentially pressed forward, and the projection is fitted into the recess, thereby being fixed to the cross member on the vehicle body side. However, a large operation force is required to tighten the last bolt, and when the battery is difficult to be displaced forward, it is not possible to secure the fixing.

An object of the present invention is to provide an effective means for solving such a problem.

[0007]

According to a first aspect of the present invention, there is provided a battery box for accommodating a large number of batteries, an electric motor for driving a vehicle driven by these batteries, and a battery chamber for storing the battery box. In the vehicle, the battery box is provided with a frame bracket extending in parallel on both lower surfaces thereof, and a battery chamber is provided with a guide rail for receiving the frame bracket of the battery box and guiding the battery box in the storage direction through the frame bracket. Each frame bracket is provided with a lock pin which can be moved forward and backward with respect to the guide rail through a shaft hole penetrating in the orthogonal direction, and a pin hole on the guide rail where the lock pin can be inserted at the storage position of the battery box. Through the rotating shaft at the rear end in the storage direction And rolling free operating handle is provided with a link mechanism for synchronously advancing and retracting a lock pin in accordance with the rotation of the operating handle between its rotary shaft and the lock pin.

According to a second aspect, in the first aspect, a square shaft portion is formed on the rotation shaft of the operation handle, and a holding portion for elastically restricting the rotation of the square shaft portion is provided.

According to a third aspect, in the first aspect, a bottom portion is provided in the pin hole of the rail, at which the tip end of the lock pin abuts.

[0010]

According to the first aspect of the present invention, the battery box is guided in the storage direction via the frame bracket by the guide rail of the battery compartment. When the operation handle is turned to the lock side in the storage position of the battery box, the movement is transmitted from the rotation shaft to each lock pin via the link mechanism, and these lock pins are synchronously inserted into the pin holes of the guide rail. . Since the battery box is fixed to the battery chamber via the lock pin, it is possible to prevent the battery box from moving due to vibration during running of the vehicle.

When the operation handle at the lock position is turned in the opposite direction (unlocked side), each lock pin is synchronously retracted from the pin hole of the guide rail via the link mechanism, and the battery box is fixed to the guide rail. Is released, and the battery chamber can be moved from the storage position to the carry-out direction along the guide rail. Therefore, the battery box can be drawn out from the battery chamber to a large outside, so that the inspection and maintenance of the battery can be efficiently processed. In addition, since the battery box is guided by the guide rail via the frame bracket, loading and unloading to and from the battery chamber can be easily performed.

In the second invention, the rotation of the square shaft is restricted by the elastic force of the holding portion. Therefore, it is possible to prevent the lock pin from moving back and forth through the shaft hole of the frame bracket regardless of the operation of the handle.

In the third aspect, when the lock pin is inserted into the pin hole of the guide rail, it hits the bottom of the pin hole.
For this reason, since the battery box is supported via the lock pin at the bottom of the pin hole from both sides in the direction orthogonal to the guide rail, the movement of the battery box between the frame bracket and the guide rail can be suppressed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes a battery box, in which a number of batteries are housed.
The battery box 1 is composed of a frame (frame) having a box frame shape and a cover surrounding the outer surface thereof, and a number of batteries are fixed to the frame via a retainer in a predetermined arrangement state.
A battery room 2 (body side) is provided in a power room of the vehicle, and the battery box 1 is stored in the battery room 2.

Leg-shaped frame brackets 3 are connected to both lower surfaces of the battery box 1, and rollers 4 for supporting the battery box 1 easily are provided on the frame brackets 3. A guide rail 5 for receiving the frame bracket 3 of the battery box 1 and guiding the battery box 1 through the frame bracket 3 is provided on the floor of the battery chamber 2 from the entrance side of the battery chamber 2 to the back of the battery chamber 2. It is provided over.

To fix the battery box 1 to the battery compartment 2, lock pins 6 are provided at both ends of each frame bracket 3. The lock pin 6 is supported by the frame bracket 3 so as to be able to advance and retreat via a shaft hole 7 penetrating the frame bracket 3 in the orthogonal direction. Corresponding to the lock pins 6, each guide rail 5 is provided with a pin hole 8 into which the lock pin can be inserted at the storage position of the battery box 1.

At the lower surface of the battery box 1, a plate 9 for connecting between the frame brackets 3 is attached at front and rear positions. A shaft hole 10 is formed coaxially at the center of these plates 9, and a rotating shaft 11 is supported via the shaft hole 10 so as to be freely rotatable. An operation handle 12 is coupled to a distal end of a rotating shaft 11 protruding from the rear plate 9.

A link lever 13 corresponding to the lock pin 6 is formed on the rotating shaft 11, and a link rod 14 for connecting the rear end of the lock pin 6 to the free end of the link lever 13 is provided. The link lever 13 and the link rod 14 constitute a link mechanism for moving the lock pin 6 a predetermined stroke in accordance with the rotation of the operation handle 12 as described later.

The intermediate portion of the rotary shaft 11 is a square shaft portion 1 having a four-sided configuration.
5 are formed, and a holding portion 16 for elastically restricting the rotation of the square shaft portion 15 is provided. The holding portion 16 is formed by bending a leaf spring so as to press the upper and lower surfaces of the square shaft portion 14, and is attached to the lower surface of the battery box 1 via a stay 17 at a main portion thereof as shown in FIG.

With this configuration, when the battery box 1 is stored in the battery compartment 2, the battery box 1 is carried in with the frame bracket 3 being fitted between the guide rails 5 and moved to a predetermined storage position. Since the roller 4 rolls on the guide rail 5 while the battery box 1 is guided by the guide rail 5 via the frame bracket 3, the battery box 1 can be easily moved to the storage position.

When the operation handle 12 is turned to the lock side against the elastic force of the holding portion 16 in the storage position where the lock pin 6 coincides with the pin hole 8, the movement is performed from the rotation shaft 11 to the link lever 13 and the link rod. The lock pins 6 are transmitted to the respective lock pins 6 through 14, and the lock pins 6 are inserted into the pin holes 8 of the guide rail 5. Therefore, the battery box 1 is fixed to the battery chamber 2 on the vehicle body side via the four lock pins 6.

Since the lock pin 6 is restricted from moving forward and backward by the holding portion 16 via the square shaft portion 15 of the rotary shaft 11, the lock pin 6 is held in the locked state inserted into the pin hole 8 of the guide rail 5. When unloading the battery box 1, the operation handle 12
When the is turned to the release side, the link lever 13 and the link rod 14 move back, and the lock pin 6 is retracted from the pin hole 8 of the guide rail 5. The tip of the lock pin 6 is retracted into the inside of the frame bracket 3, and is held by the elastic force of the holding portion 16 at a retracted position (initial position). Therefore, the battery box 1 is free to move the battery chamber 2 to the entrance side.

As described above, since the battery box 1 is fixed to the battery chamber 2, it is possible to prevent the battery box 1 from moving due to vibration or the like while the vehicle is running. Therefore, the good function of the battery can be maintained without causing the terminal to be loosened or the harness to be damaged. When the fixing of the battery box 1 is released, the battery box 1 can be drawn out from the battery chamber 2 to a wide outside, so that the inspection and maintenance of the battery can be efficiently processed. Further, the movement in the battery chamber 2 accompanying the taking in and out of the battery box 1 can be easily and easily performed.

In the embodiment shown in FIG. 5, the bottom portion 20 at which the tip of the lock pin 6 abuts the pin hole 8 of each guide rail 5.
Is provided. Thus, even if there is a gap between the guide rail 5 and the frame bracket 3, the battery box 1 is supported on the bottom 20 of the pin hole 8 via the lock pin 6 from both sides in a direction orthogonal to the guide rail 5. . Therefore, the movement of the battery box 1 in the gap between the frame bracket 3 and the guide rail 5 can be suppressed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a fixing device according to an embodiment of the present invention.

FIG. 2 is a perspective view of the battery box.

FIG. 3 is a partial perspective view of the fixing device.

FIG. 4 is an explanatory view showing a configuration of a square shaft portion and a holding portion.

FIG. 5 is an explanatory diagram showing a configuration of a guide rail and a lock pin as another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery box 2 Battery compartment 3 Bracket 4 Roller 5 Guide 6 Lock pin 7 Shaft hole of lock pin 8 Pin hole 9 Plate 10 Shaft hole of rotating shaft 11 Rotating shaft 12 Operating handle 13 Link lever 14 Link rod 15 Square shaft portion 16 Nipping Part 20 Bottom of pin hole

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroshi Ienaka Nissan Diesel Industries Co., Ltd., 1st place, Dai-Chome, Ageo-shi, Saitama (72) Inventor Hirofumi Hamaoka 1-7-2 Nishishinjuku, Nishishinjuku, Shinjuku-ku, Tokyo Fuji Heavy Industry Co., Ltd.

Claims (3)

[Claims] 1. A vehicle comprising: a battery box for accommodating a large number of batteries; an electric motor for driving the vehicle driven by the batteries; and a battery chamber for storing the battery box. A frame bracket extending in parallel on both sides of the lower surface is provided with a guide rail for receiving the frame bracket of the battery box in the battery compartment and guiding the battery box in the storage direction via the frame bracket, and penetrates each frame bracket in the orthogonal direction. A lock pin that can move forward and backward with respect to the guide rail through the shaft hole is provided on the guide rail, and a pin hole that allows the lock pin to be inserted at the storage position of the battery box is provided. An operation handle that can rotate freely through an axis and its rotation Battery fixing device, characterized in that a link mechanism for synchronously advancing and retracting a lock pin in accordance with the rotation of the operating handle between the shaft and the lock pin. 2. A square shaft portion is formed on a rotation shaft of an operation handle,
The battery fixing device according to claim 1, further comprising a holding portion that elastically restricts rotation of the square shaft portion. 3. The battery fixing device according to claim 1, wherein a bottom portion is provided at which a tip portion of the lock pin abuts a pin hole of the rail.