JP2020032857A - vehicle - Google Patents

Abstract

To provide a vehicle in which a battery and an electric power transmission component can be arranged in a small section without deterioration of workability in arrangement and maintenance of the battery and the electric power transmission component and which is structured such that support for the battery can be maintained even when an impact is applied to the vehicle.SOLUTION: The vehicle includes: a vehicle body frame (E); fixed panels (H1, H2) welded to the frame; a plate (20) disposed in an opening (Q1) and detachably connected to the fixed panel; a front receiving portion (25) and a back receiving portion (26) disposed on the plate and arranged on the front and the back; a battery (B); a retainer (30) having hooks (31, 32); and a component case (40) adapted to house an electric power transmission component (C). The battery (B) is retained via the retainer on the plate (20), and the component case (40) is connected to the plate (20) while being located below the plate (20).SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle equipped with a battery.

  In a vehicle having a monocoque structure, a battery may be mounted on a frame (frame body) of an engine room or a fixed panel welded to the frame via a battery bracket (see, for example, FIG. 3 of Patent Document 1). . The frame or the fixed panel welded to the frame has high rigidity and can sufficiently support the battery even when a shock is applied to the vehicle.

JP 2002-225750 A

  In a vehicle such as an HEV (Hybrid Electric Vehicle), many units such as a motor and a PCU (Power Control Unit) are mounted in an engine room in addition to the engine. For this reason, a surplus space is small, and the layout flexibility of many units is reduced. Even in the case of an EV (Electric Vehicle) having no engine or an engine vehicle having no motor, the degree of freedom of layout of many units is reduced by downsizing the vehicle.

  On the other hand, it is preferable that an auxiliary battery and a power transmission component such as a relay that opens and closes a power line of the battery can be easily and detachably mounted on a vehicle from the viewpoint of assembly and maintenance. Further, the battery support structure is required to sufficiently maintain the battery support even when an impact is applied to the vehicle.

  The present invention provides a structure in which the battery and the power transmission component can be arranged in a small section without reducing the workability of assembling and maintaining the battery and the power transmission component, and the support of the battery can be maintained even when an impact is applied to the vehicle. It is an object of the present invention to provide a vehicle provided with a vehicle.

The invention according to claim 1 is
The body frame,
A fixed panel welded to the frame,
An opening communicating with the fixing panel from above to below,
A plate disposed in the opening, and detachably connected to the frame, the fixed panel, or both;
A front receiving portion and a rear receiving portion provided on the plate and arranged in front and rear,
Battery and
A holder for holding the battery, the holder having two hook portions that can be locked to the front receiving portion and the rear receiving portion, respectively;
A component case in which a power transmission component for transmitting the power of the battery is accommodated;
With
The vehicle is characterized in that the battery is held on the plate via the holder, and the component case is arranged below the plate and connected to the plate.

  Here, the "frame of the vehicle body" includes a frame, a side member, a cross member, a reinforcing frame, and the like in the monocoque structure in addition to the frame in the frame structure.

The invention according to claim 2 is a vehicle according to claim 1,
The component case has a connecting portion connected to the plate at a position forward of a center of the component case and at a position rearward of a center of the component case.

The invention according to claim 3 is the vehicle according to claim 1 or 2,
A central point between the front receiving portion and the rear receiving portion is located behind a central point in the front-rear direction of the plate.

The invention according to claim 4 is the vehicle according to claim 1 or 2,
A center point between the front receiving portion and the rear receiving portion is located forward of a center point in the front-rear direction of the plate.

The invention according to claim 5 is a vehicle according to any one of claims 1 to 3,
The component case has a flange connected to the plate, and a main body that houses the power transmission component,
A front end of the battery is located behind the front end of the main body, and a rear end of the battery is located behind the rear end of the main body.

According to a sixth aspect of the present invention, in the vehicle according to any one of the first to third aspects,
A connecting portion between the plate and the component case is located below the battery.

  According to the present invention, by arranging the battery and the power transmission component above and below the plate, the battery and the power transmission component can be arranged in a smaller section than when the battery and the power transmission component are arranged side by side in the horizontal direction. Furthermore, since the plate is detachably connected, even if the power transmission component is arranged below the opening of the fixed panel, the plate can be removed to take out and attach the power transmission component. That is, the workability of assembling and maintaining the power transmission components is improved. Further, in addition to the plate being connected to the frame, the fixing panel or both, and being reinforced by the connection of the component covers, the deformation of the plate is suppressed even when the vehicle is impacted, and the support of the battery is suppressed. Can be maintained.

FIG. 1 is a diagram showing a vehicle according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a supporting structure of the battery and the power transmission component of the first embodiment. FIG. 2 is a side view illustrating a support structure of the battery and the power transmission component according to the first embodiment. FIGS. 4A and 4B are diagrams illustrating an operation when an impact is applied to the support structure of the first embodiment. It is a side view which shows the support structure of the battery of Embodiment 2, and a power transmission component. FIGS. 7A and 7B are diagrams illustrating an operation when an impact is applied to the support structure of the second embodiment.

(Embodiment 1)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a vehicle according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a support structure of the battery and the power transmission component according to the first embodiment. FIG. 3 is a side view illustrating a support structure of the battery and the power transmission component according to the first embodiment. In this specification, the front, rear, up, down, left, and right directions mean the front, rear, up, down, left, and right directions of the vehicle.

  The vehicle 1 according to the embodiment of the present invention is an HEV, an EV, an engine car, or the like. As shown in FIG. 1, the vehicle 1 includes a frame E, fixed panels H1 and H2 welded to the frame E, a battery plate 20, a battery B and its holder 30, a power transmission component C and its component case. 40. The battery plate 20 corresponds to an example of a plate according to the present invention.

  The frame E is, for example, a frame of an engine room (arbitrary parts room in the case of EV) A in a monocoque structure. The frame E and the fixed panels H1 and H2 welded to the frame E are integrated and have high rigidity.

  Between the fixed panels H1 and H2, there is provided an opening Q1 communicating from above to below the fixed panels H1 and H2. The battery plate 20 is disposed in the opening Q1. Battery B is held on battery plate 20 via holder 30. Under the battery plate 20, a component case 40 accommodating the power transmission component C is held.

  The battery B is, for example, a lead storage battery, and is a low-voltage battery that outputs a lower voltage (12 V or the like) than a high-voltage battery that stores power for driving the traveling motor. The battery B supplies electric power for driving the cell motor of the engine or electric power for driving the auxiliary equipment, the control circuit, the accessory device, and the like of the engine. Alternatively, when the vehicle 1 is an EV, the battery B supplies electric power for driving a control circuit, a PCU, accessory devices, and the like.

  The power transmission component C includes a relay that opens and closes the power transmission path of the battery B, and transmits the power of the battery B. The power transmission component C is fixed in the component case 40.

  The battery plate 20 is a metal plate on which the battery B is mounted or a reinforced resin plate. In the figure, an example of a flat plate shape is shown as the battery plate 20, but the battery plate 20 may include an uneven portion or a wavy portion.

  The battery plate 20 has a front receiving portion 25 and a rear receiving portion 26 through which hooks are passed to lock the hooks. The front receiving portion 25 and the rear receiving portion 26 are provided on the upper surface of the battery plate 20 side by side in the front-rear direction. As shown in FIG. 3, when the battery B is disposed, the front receiving portion 25 and the rear receiving portion 26 are located near the front surface and the rear surface of the battery B.

  The battery plate 20 includes a first connection part 21 connected to the fixed panel H1, a second connection part 22 connected to the fixed panel H2, a third connection part 23 and a fourth connection part connected to the component case 40. 24. The first connection portion 21 and the third connection portion 23 are provided at a rear portion of the battery plate 20, and the second connection portion 22 and the fourth connection portion 24 are provided at a front portion of the battery plate 20. The first to fourth connection portions 21 to 24 are bolt holes (bolt insertion holes or screw holes) connected by bolts.

  The holder 30 includes a plurality of hooks 31 and 32 and an intervening member 33 such as a metal fitting or a band interposed between the plurality of hooks 31 and 32. The plurality of hook portions 31 and 32 are respectively engaged with the front receiving portion 25 and the rear receiving portion 26 of the battery plate 20 before and after the battery B, and the intervening member 33 presses the battery B from above. 20.

  The component case 40 includes a main body 40A that covers the lower part of the power transmission component C and at least three sides (for example, front, left, and right) in the front, rear, left, and right horizontal directions, and a flange 40B that is connected to another member. And The component case 40 is a metal member or a reinforced resin member. The flange 40 </ b> B includes a first connection part 41 connected to the fixed panel H <b> 1, a second connection part 42 connected to the fixed panel H <b> 2, a third connection part 43 and a fourth connection part connected to the battery plate 20. 44 and a fifth connecting portion 45 connected to the frame E are provided. The flange 40B having the first connection portion 41, the third connection portion 43, and the fifth connection portion 45 is provided at the rear of the component case 40, and the flange 40B having the second connection portion 42 and the fourth connection portion 44 is a component. It is provided at the front of the case 40. The first to fifth connection portions 41 to 45 are bolt holes (bolt insertion holes or screw holes) connected by bolts.

  In the frame E and the fixed panels H1 and H2, connecting portions 51 to 55 are provided around the opening Q1. The connecting portions 51 to 55 correspond to the first connecting portion 21 and the second connecting portion 22 of the battery plate 20 and the first connecting portion 41, the second connecting portion 42, and the fifth connecting portion 45 of the component case 40, respectively. In position. The connection portions 51 to 55 are bolt holes (bolt insertion holes or screw holes) connected by bolts.

  As shown in FIG. 3, when the components of the support structure are assembled, the center point P1 between the front receiving portion 25 and the rear receiving portion 26 of the battery plate 20 is the center point of the battery plate 20 in the front-rear direction. It is located behind P0. That is, the battery B is arranged near the rear of the battery plate 20. As a result, a surplus portion of the battery plate 20 is generated ahead of the front receiving portion 25.

  Further, in a state where the components of the support structure are assembled, the front end of the battery B is located behind the front end of the main body 40A of the component case 40, and the rear end of the battery B is located behind the main body 40A of the component case 40. It is located behind the end. In other words, the battery B and the component case 40 are arranged so as to vertically overlap, and the main body 40A of the component case 40 is disposed closer to the front end of the vehicle than the battery B.

  Furthermore, the third connecting portions 23 and 43 where the battery plate 20 and the component case 40 are connected are located below the battery B. The third connecting portions 23 and 43 include a plurality of bolt holes arranged in front and rear. The third connecting portion 23 may have a recess for accommodating the head of the bolt so that the head of the bolt does not interfere with the battery B.

  <Removal method>

  The components of the structure supporting the battery B and the power transmission component C are assembled as follows. First, the main body 40A of the component case 40 is disposed inside the opening Q1. Then, the first connection portion 41, the second connection portion 42, and the fifth connection portion 45 of the flange 40B are connected to the fixed panels H1, H2 and the connection portions 53 to 55 of the frame E by bolts, respectively. The power transmission component C is fixed to the component case 40 before or after assembling the component case 40.

  After the component case 40 is connected, the battery plate 20 is then placed in the opening Q1. The first to fourth connecting portions 21 to 24 are connected to the connecting portions 51 and 52 of the fixed panels H1 and H2 and the third and fourth connecting portions 43 and 44 of the component case 40 by bolts. . Thereafter, the battery B is placed on the battery plate 20, and the hooks 31, 32 of the holder 30 are locked by the front receiving portion 25 and the rear receiving portion 26, whereby the battery B is fixed.

  Through the reverse of the above steps, the power transmission component C fixed below the opening Q1 is exposed upward, and the power transmission component C can be maintained from the opening Q1. Further, the power transmission component C can be removed and attached together with the component case 40 from the opening Q1.

<Action at impact>
FIGS. 4A and 4B are diagrams illustrating an operation when an impact is applied to the support structure of the first embodiment.

  The frame E and the fixed panels H1, H2 are integrated by welding and have high rigidity. On the other hand, the battery plate 20 has lower rigidity than the frame E and the fixed panels H1 and H2 because the connection portion is limited to a part. Further, when the weight of the battery plate 20 is reduced, the rigidity of the battery plate 20 is further reduced.

  When a shock is applied to the vehicle 1 from the front, as shown in FIG. 4A, a compressive force F1 in the front-rear direction acts on the frame E, the fixed panels H1, H2, and the battery plate 20, and the battery B has a forward force. , An inertial force F2 acting in the direction of falling.

  In this case, if the battery plate 20 alone supports the battery B, the battery plate 20 is deformed more than the fixed panels H1 and H2 due to the compressive force F1 in the front-rear direction, and the battery B is moved forward by the inertial force F2. Incline. When the battery B is tilted forward, a pulling force is generated in the hook portion 32 behind the holder 30, and the hook portion 32 stays in the rear receiving portion 26. On the other hand, when the lower portion of the battery B of the battery plate 20 is bent in, for example, a V-shape and the battery B is inclined forward, the hook portion 31 in front of the holder 30 is loosened, and the hook portion 31 It is easy to come off.

  On the other hand, in the support structure of the present embodiment, the component case 40 is connected to the battery plate 20 to realize a closed cross-sectional structure, and the rigidity is improved as compared with the configuration of the battery plate 20 alone. For this reason, even when the impact is applied, the deformation of the battery plate 20 is suppressed, as shown in FIG. 4B, as compared with the configuration of the battery plate 20 alone. By suppressing the deformation, the hook 30 and the hooks 31 and 32 are prevented from coming loose from the front receiving portion 25 and the rear receiving portion 26 due to the loosening of the holder 30, and the support of the battery B is maintained.

  Further, in the support structure of the present embodiment, the component case 40 is disposed closer to the front end of the vehicle than the battery B. Thereby, the rigidity of the front receiving portion 25 of the battery plate 20 with respect to the compressive force F1 in a certain range is further improved, and the deformation such that the front receiving portion 25 rises is further suppressed. Thereby, particularly, the front hook portion 31 is prevented from being loosened, and the support of the battery B is maintained.

  Further, below the battery B of the battery plate 20, there are third connecting portions 23 and 43 connected to the component case 40. For this reason, the deformation which bends this range is further suppressed. Thereby, particularly, the front hook portion 31 is prevented from being loosened, and the support of the battery B is maintained.

  Further, since the battery B is supported near the rear of the battery plate 20, when an impact greater than the strength of reinforcement by the component case 40 occurs, a surplus portion in front of the battery plate 20 is deformed first, The deformation of the lower part of the battery B is suppressed. Thus, the rectangular shape of the battery plate 20 below the battery B, the hook portions 31 and 32 before and after the holder 30 and the intervening member 33 when viewed from the left and right directions are maintained. Therefore, even in such a case, loosening of the hook portions 31 and 32 of the holder 30 is suppressed, and the support of the battery B is maintained.

<Effects of Embodiment>
As described above, according to the vehicle 1 of the first embodiment, the battery plate 20 is detachably connected to the opening Q1, the battery B is disposed on the battery plate 20, and the power transmission component C is disposed below the battery B. Is done. Therefore, the battery B and the power transmission component C can be arranged in a small section of the engine room A as compared with the case where the battery B and the power transmission component C are arranged side by side on the fixed panel. Furthermore, since the power transmission component C can be maintained from above the opening Q1 by removing the battery plate 20, good workability can be obtained for maintaining the power transmission component C. On the other hand, since the battery plate 20 is configured to be detachably connected, the rigidity is lower than the frame E and the fixed panels H1 and H2 welded to each other. However, since the component case 40 is connected to the lower side of the battery plate 20, the battery plate 20 is reinforced. With this reinforcement, when an impact is applied from the front of the vehicle 1, the deformation of the battery plate 20 is prevented. Is suppressed. Therefore, loosening of the hook portions 31 and 32 of the holder 30 is suppressed, and the support of the battery B can be maintained.

  Further, according to the vehicle 1 of the first embodiment, the component case 40 has the fourth connection portion 44 at the front portion and the third connection portion 43 at the rear portion, and these are connected to the battery plate 20. Thereby, a closed cross-sectional structure is realized by the battery plate 20 and the component case 40, and the strength of reinforcement of the battery plate 20 by the component case 40 is improved. Therefore, when an impact is applied from the front of the vehicle 1, the deformation of the battery plate 20 can be further suppressed.

  Further, according to the vehicle 1 of the first embodiment, the center point P1 between the front receiving portion 25 and the rear receiving portion 26 of the battery plate 20 is located behind the center point P0 of the battery plate 20 in the front-rear direction. . As a result, a surplus portion of the battery plate 20 is generated in front of the battery B, and when the vehicle 1 experiences a large impact, the surplus portion is deformed first, so that the portion of the battery plate 20 facing the bottom surface of the battery B Can be suppressed. Therefore, even in such a case, the support of the battery B can be maintained.

  Further, according to the vehicle 1 of the first embodiment, the front end of the battery B is located rearward of the front end of the main body 40A of the component case 40, and the rear end of the battery B is positioned rearward of the main body 40A of the component case 40. Is also located at the rear. Therefore, the battery B and the power transmission component C can be arranged in a vertically overlapping layout, and the rigidity around the front receiving portion 25 of the battery plate 20 can be improved. Due to the improvement of the rigidity, when the vehicle 1 receives an impact, deformation around the front receiving portion 25 of the battery plate 20 can be suppressed, and the looseness of the hook portion 31 on the front side of the holder 30 can be suppressed. You can maintain support.

  Further, according to the vehicle 1 of the second embodiment, since the third connecting portions 23 and 43 between the battery plate 20 and the component case 40 are arranged below the battery B, the rigidity of this portion is improved. Therefore, when the vehicle 1 receives an impact, it is possible to prevent the portion of the battery plate 20 below the battery B from being bent in a V-shape and the front hook portion 31 of the holder 30 from being loosened. Thereby, the support of the battery B can be maintained.

(Embodiment 2)
FIG. 5 is a side view illustrating a support structure for a battery and a power transmission component according to the second embodiment. FIG.
FIGS. 6A and 6B are diagrams illustrating an operation when an impact is applied to the support structure according to the second embodiment.

  The second embodiment is different from the first embodiment mainly in the arrangement of the battery B in the battery plate 20. The same components as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and the detailed description is omitted.

  As shown in FIG. 5, the center point P2 between the front receiving portion 25 and the rear receiving portion 26 of the battery plate 20 is located forward of the center point P0 of the battery plate 20 in the front-rear direction. That is, the battery B is disposed closer to the front of the battery plate 20. As a result, a surplus portion of the battery plate 20 is generated behind the rear receiving portion 26.

  When a shock is applied to the vehicle 1 from the front, a compressive force F1 in the front-rear direction acts on the frame E, the fixed panels H1, H2, and the battery plate 20, as shown in FIG. Inertia force F2 acts. However, also in the battery B supporting structure according to the second embodiment, since the battery plate 20 is reinforced by the connection of the component cases 40, the deformation of the battery plate 20 is suppressed, so that the holding of the battery B can be maintained.

  Further, when a large impact is applied, as shown in FIG. 6B, the surplus portion at the rear of the battery plate 20 is deformed first, thereby suppressing the deformation of the portion of the battery plate 20 from the center to the front. it can. Accordingly, the rectangular portion surrounding the battery B when viewed from the left and right directions (that is, the lower portion of the battery B of the battery plate 20, the hook portions 31 and 32 and the intervening member 33 before and after the holder 30) is maintained and held. Looseness of the hook portions 31 and 32 of the tool 30 is suppressed. Therefore, even when a large impact is applied, the support of the battery B can be maintained.

  The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. For example, in the above-described embodiment, an example in which the two fixed panels H1 and H2 are welded to the frame E has been described. However, an integrated fixed panel is welded to the frame, and an opening is provided in the integrated fixed panel. May be. Further, in the above embodiment, the example in which the frame E is the frame of the engine room A in the monocoque structure has been described, but the frame of the vehicle body is a frame in the frame structure, a side member, a cross member, a reinforcing frame, and the like in the monocoque structure. You may. In the above embodiment, the component case 40 is described as covering the lower, left, right, and front of the power transmitting component C. However, the component case 40 may be configured to cover the upper or rear of the power transmitting component C, or may be configured to cover the front, left, right, and lower. May not be covered. Further, the battery plate may be connected to the fixed panel, the frame, or both, or the component case may be connected to only the battery plate without being connected to the fixed panel and the frame. In addition, the details shown in the embodiment, such as the shape or material of each element, can be appropriately changed without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Vehicle A Engine room B Battery C Power transmission parts E Frame H1, H2 Fixed panel Q1 Opening 20 Battery plate (plate)
21-24 First connection part to fourth connection part 25 Front receiving part 26 Rear receiving part 30 Holder 31, 32 Hook part 33 Interposed member 40 Component case 40A Main body part 40B Flange 41-45 First connection part to fifth connection Part 51-55 Connecting part P0, P1, P2 Central point

Claims (6)

The body frame,
A fixed panel welded to the frame,
An opening communicating with the fixing panel from above to below,
A plate disposed in the opening, and detachably connected to the frame, the fixed panel, or both;
A front receiving portion and a rear receiving portion provided on the plate and arranged in front and rear,
Battery and
A holder for holding the battery, the holder having two hook portions that can be locked to the front receiving portion and the rear receiving portion, respectively;
A component case in which a power transmission component for transmitting the power of the battery is accommodated;
With
The vehicle, wherein the battery is held on the plate via the holder, and the component case is disposed below the plate and connected to the plate.   2. The vehicle according to claim 1, wherein the component case has a connection portion connected to the plate at a position forward of a center of the component case and at a position rearward of a center of the component case.   3. The vehicle according to claim 1, wherein a center point between the front receiving portion and the rear receiving portion is located behind a center point in the front-rear direction of the plate.   3. The vehicle according to claim 1, wherein a center point between the front receiving portion and the rear receiving portion is located forward of a center point in the front-rear direction of the plate. The component case has a flange connected to the plate, and a main body that houses the power transmission component,
4. The battery according to claim 1, wherein a front end of the battery is located behind a front end of the main body, and a rear end of the battery is located behind a rear end of the main body. 5. The vehicle according to one of the preceding claims.   The vehicle according to any one of claims 1 to 3, wherein a connecting portion between the plate and the component case is located below the battery.

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