JP2013023267A - Conveying pallet for on-board battery pack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveying pallet for an on-board battery pack having high versatility, rigidity and displacement suppressing effect.SOLUTION: The conveying pallet for the on-board battery pack is provided which allows selective assembling of the plurality of on-board battery packs different in outer shapes each other, and includes a substrate, a first seat surface raised from the substrate and serving as a reinforcing member heightening the mechanical rigidity of the pallet, and a second seat surface raised from the substrate and having elasticity. When the selected on-board battery pack optionally selected among the plurality of on-board battery packs is assembled on the conveying pallet for the on-board battery pack, the first seat surface abuts on the selected on-board battery pack, and the second seat surface abuts on the selected on-board battery pack and elastically deformed.

Description

  The present invention relates to a structure of a transport pallet for a vehicle battery pack.

As a power supply device used for an electric vehicle, a hybrid vehicle, and the like, a battery pack is known that includes an assembled battery in which a plurality of single cells are stacked and a housing case that houses the assembled battery.
This type of vehicle battery pack is mounted on a transport pallet and sent to a vehicle assembly factory.
The vehicle battery pack has many shapes depending on the vehicle mounting position, legal regulations, required performance, and the like, and an individual transport pallet is required for each type of vehicle battery pack.

  In Patent Document 1, a soft sheet member is attached to the upper surface of a conveyance pallet for the purpose of enabling a mixed conveyance of an arbitrary-shaped conveyance object or different conveyance objects with one type of conveyance pallet, A conveying pallet is disclosed in which the sheet member is recessed to a predetermined depth by the protrusions, and the object to be conveyed is prevented from being displaced in the conveying process by the depression. Also disclosed is a chassis that includes various electronic components such as a semiconductor, a resistor, a capacitor, and a flyback transformer as a transferred object, and a circuit that receives and controls a television signal.

JP-A-9-290828 JP 2004-182307 A Japanese Patent Laid-Open No. 11-208662

  However, with the method of using individual pallets according to the type of vehicle battery pack, pallet replacement, stock space, or new vehicles that will be generated in the future in production plants where the number of different types of vehicle battery packs produced varies. There is a risk of deteriorating the diversion property to the battery pack for use.

  Further, Patent Document 1 discloses a structure for preventing the displacement of a lightweight object such as an electronic component, and the rigidity of a transport pallet that causes a problem when a heavy object such as a vehicle battery pack is placed. There is no consideration for.

  Furthermore, since the vehicle battery pack vibrates when transported by the transport pallet, it is necessary to suppress the displacement of the vehicle battery pack.

  Therefore, the present invention is capable of selectively mounting a plurality of types of vehicle battery packs having different shapes, has rigidity against the load of the vehicle battery pack, and suppresses displacement of the vehicle battery pack. It is an object of the present invention to provide a vehicle battery pack transport pallet having a high effect.

  In order to solve the above-mentioned problems, a vehicle battery pack transport pallet according to the present invention is (1) a vehicle battery pack transport pallet capable of selectively assembling a plurality of vehicle battery packs having different external shapes. A first seating surface portion as a reinforcing member raised from the substrate and enhancing the mechanical rigidity of the pallet; and a second seating surface raised from the substrate and having elasticity. When the selected vehicle battery pack selected as an assembly target among the plurality of vehicle battery packs is assembled to the vehicle battery pack transport pallet, the first seat portion is The second seating surface portion is in contact with the vehicle battery pack, and is elastically deformed by the weight of the selected vehicle battery pack.

  (2) In the configuration of (1) above, the second seating surface portion includes a low rebound resilience foam material. According to the structure of (2), the 2nd seat surface part contact | abutted to the battery pack for selected vehicles elastically deforms along the shape of the battery pack for selected vehicles, and the 2nd seat surface portion and the battery pack for selected vehicles The effect of suppressing the displacement of the selected vehicle battery pack can be enhanced by the frictional force acting between the two.

  (3) In the configuration of (1) or (2), the second seat surface portion includes a sheet member including a Kepler on a contact surface of the low-resilience elastic foam material that contacts the battery pack for the selected vehicle. ing. According to the structure of (3), since the 2nd seat surface part has abrasion resistance and friction resistance, the lifetime reduction of a 2nd seat surface part can be suppressed.

  (4) In the configurations of (1) to (3) above, a plurality of the first and second seating surface portions are provided. According to the structure of (4), the rigidity of a conveyance pallet for vehicle battery packs and a positional shift suppression effect can be improved.

  (5) In the configurations of (1) to (4) above, at least one of the first and second seating surface portions is detachable from the substrate. According to the configuration of (5), when the first seat surface portion is worn and deteriorated, the first seat surface portion can be easily replaced. Further, the second seating surface portion can be easily replaced when the second seating surface portion is worn, deteriorated, or the elastic force is lowered.

  (6) In the configurations of (1) to (5) above, rough guide portions protruding from the substrate are formed at the four corners of the substrate, and the rough guide portion is viewed in the thickness direction of the substrate. It is formed in an L shape. According to the configuration of (6), when the vehicle battery pack is displaced against the friction force acting between the second seat surface portion, the vehicle battery pack is transferred to the vehicle battery pack transport pallet. It is possible to suppress the heading out from the direction.

  According to the present invention, it is possible to selectively mount a plurality of types of vehicle battery packs having different shapes from each other, have rigidity against the load of the vehicle battery pack, and suppress displacement of the vehicle battery pack. A highly efficient battery pallet for battery packs can be provided.

It is a perspective view of the conveyance pallet for battery packs for vehicles. It is a perspective view of the conveyance pallet for vehicle battery packs in which the battery pack for vehicles is mounted.

  FIG. 1 is a perspective view of a vehicle battery pack transport pallet (hereinafter referred to as “transport pallet”) according to the present embodiment, and FIG. 2 is a perspective view of the transport pallet according to the present embodiment on which the vehicle battery pack is mounted. FIG. The X axis, the Y axis, and the Z axis are three orthogonal axes different from each other. With reference to FIG. 1, the transport pallet 1 includes a substrate 10, a reinforcing seat surface portion 20 as a first seat surface portion, an elastic seat surface portion 30 as a second seat surface portion, and a rough guide 40.

  The substrate 10 is formed in a substantially rectangular shape in plan view (viewed in the Z-axis direction), and chamfered portions 11 are formed at four corners thereof. A steel plate can be used for the substrate 10. The reinforcing seat surface portion 20 is formed so as to protrude from the substrate 10 and enhances the rigidity of the transport pallet 1. Here, a vehicle battery pack (selected vehicle battery pack) 80 shown in FIG. 2 is placed on the transport pallet 1.

  The vehicle battery pack 80 includes an assembled battery in which a plurality of single cells (not shown) are stacked, and a housing case 81 that houses the assembled battery. The vehicle battery pack 80 includes various electronic components necessary for battery control, such as a monitoring unit and a junction box, and the total weight of these components is applied to the substrate 10 when the vehicle battery pack 80 is assembled. It has become. In this embodiment, the rigidity of the conveyance pallet 1 is enhanced by arranging the reinforcing seat surface portion 20 at a position where the battery pack 80 contacts the vehicle battery pack 80. Therefore, the transport pallet 1 having rigidity that can withstand the weight of the vehicle battery pack 80 can be provided.

  There may be a plurality of reinforcing seat surfaces 20. By providing a plurality of reinforcing seat surface portions 20, the rigidity of the transport pallet 1 can be further increased. In the present embodiment, three reinforcing seat surfaces 20 including a first reinforcing seat surface portion 20a, a second reinforcing seat surface portion 20b, and a third reinforcing seat surface portion 20c are provided. The first reinforcing seat surface portion 20a extends in the X-axis direction. The second reinforcing seat surface portion 20b extends in the X-axis direction, and is formed at a position aligned with the first reinforcing seat surface portion 20a in the Y-axis direction. The second reinforcing seat surface portion 20b is located closer to the center of the substrate 10 than the first reinforcing seat surface portion 20a. The third reinforcing seat surface portion 20c extends in the X-axis direction.

  These first to third reinforcing seat surface portions 20a to 20c are formed at positions where they contact the lower surface of the mounted vehicle battery pack, no matter what kind of vehicle battery pack is mounted. Vehicle battery packs of different types are premised on different shapes, but are common in that they have a basic configuration, that is, an assembled battery and a housing case that houses the assembled battery. Therefore, based on this basic configuration, when a plurality of types of vehicle battery packs are individually assembled to the transport pallet 1, it is possible to predict in design a portion that contacts in common. In the present embodiment, since the reinforcing seat surface portion 20 including the first to third reinforcing seat surface portions 20a to 20c is provided at a common portion where these vehicle battery packs abut each other, a plurality of vehicles having different shapes from each other are provided. It is possible to provide a highly rigid transfer pallet 1 capable of selectively assembling a battery pack for use.

  If the number of the reinforcing seat surface portions 20 is too large, the rigidity is increased while the weight of the transport pallet 1 is increased, and the cost is increased. By setting the number of the reinforcing seat surface portions 3 to three, it is possible to ensure sufficient rigidity to withstand the load of the vehicle battery pack while suppressing an increase in weight and cost.

  The reinforcing seat surface portion 20 may be detachable from the substrate 10. Thereby, when the reinforcing seat surface portion 20 is worn and deteriorated by receiving the load of the vehicle battery pack 80, the reinforcing seat surface portion 20 can be easily replaced. The reinforcing seat surface portion 20 may be detachable by providing a magic tape (registered trademark) on a contact surface that contacts the substrate 10. The reinforcing seat surface portion 20 may be detachable by forming a leg portion on the reinforcing seat surface portion 20 and fastening the leg portion and the substrate 10 with fastening means. The reinforcing seat surface portion 20 may be detachable by forming a pin (not shown) on the bottom surface portion of the reinforcing seat surface portion 20 and press-fitting the pin into a hole portion (not shown) of the substrate 10.

  When the vehicle battery pack 80 mounted on the transport pallet 1 is transported to a vehicle assembly factory, vibrations in the XY plane direction (in-plane direction including the substrate 10) are applied to the vehicle battery pack 80, so The battery pack 80 may be displaced on the substrate 10. In the present embodiment, the elastic seat surface portion 30 is elastically deformed by disposing the elastic seat surface portion 30 at a position in contact with the lower surface of the vehicle battery pack 80, and this elastically deformed elastic seat surface portion 30 and the vehicle battery pack are elastically deformed. Due to the frictional force acting between 80, the displacement of the vehicle battery pack 80 is suppressed. Accordingly, it is possible to provide the transport pallet 1 having a high effect of suppressing the displacement of the vehicle battery pack 80.

  As the elastic seating surface portion 30, a low rebound resilience foam can be used. The low impact resilience foam may be a foam obtained by stirring and mixing a foaming agent, a foam stabilizer, a catalyst, and the like with a polyol and polyisocyanate as main components. The raw material of the low resilience foam is characterized by the structure of polyol, etc., has a slow restoring property after compression, and viscoelastically modifies the polyurethane resin composition in order to enhance energy absorption performance. A sheet-like Kepler may be wound around the outer surface of the low resilience foam. By winding Kepler, wear resistance and friction resistance can be improved. Thereby, the lifetime improvement of the elastic seat surface part 30 and the positional shift suppression effect of the battery pack 80 for vehicles can be heightened.

  The elastic seat surface portion 30 may be plural. By providing a plurality of elastic seat parts 30, the contact area between the elastic seat part 30 and the vehicle battery pack 80 is increased, and the effect of suppressing the displacement of the vehicle battery pack 80 can be further enhanced. In the present embodiment, there are provided three elastic seat surfaces 30 including a first elastic seat surface portion 30a, a second elastic seat surface portion 30b, and a third elastic seat surface portion 30c.

  The first elastic seat surface portion 30a extends in the X-axis direction and is located between the first reinforcing seat surface portion 20a and the second reinforcing seat surface portion 20b. The second elastic seat surface portion 30b extends in the Y-axis direction, and the end surface in the Y-axis direction faces the third reinforcing seat surface portion 20c. The third elastic seat surface portion 30c is disposed adjacent to the second elastic seat surface portion 30b, and the end surface in the X-axis direction faces the third reinforcing seat surface portion 20c.

  These first to third elastic seating surface portions 30a to 30c are formed at positions where they contact the lower surface of the mounted vehicle battery pack, no matter what kind of vehicle battery pack is mounted. Vehicle battery packs of different types are premised on different shapes, but are common in that they have a basic configuration, that is, an assembled battery and a housing case that houses the assembled battery. Therefore, based on this basic configuration, when a plurality of types of vehicle battery packs are individually assembled to the transport pallet 1, it is possible to predict in design a portion that contacts in common. In the present embodiment, since the elastic seat surface portion 30 including the first to third elastic seat surface portions 30a to 30c is provided in a common portion where the plurality of types of vehicle battery packs abut each other, a plurality of shapes different from each other are provided. It is possible to provide the transport pallet 1 having a high effect of suppressing displacement in which the vehicle battery pack can be selectively assembled.

  The elastic seat portion 30 may be detachable from the substrate 10. Thereby, when the elastic seating surface part 30 is slidably worn or the elastic force is reduced, the elastic seating surface part 30 can be easily replaced. The elastic seat portion 30 may be detachable by providing a magic tape (registered trademark) on the contact surface that contacts the substrate 10.

  The rough guide 40 is formed in the vicinity of the chamfered shape portion 11 corresponding to the four corners of the substrate 10. The rough guide 40 is formed in an L shape, and is formed at positions facing the four corners of the vehicle battery pack 80 as shown in FIG. According to the rough guide 40 of the present embodiment, since the vehicle battery pack 80 is a mark for mounting on the transport pallet 1, the mounting operation of the vehicle battery pack can be simplified. Further, according to the rough guide 40 of the present embodiment, when the vehicle battery pack 80 is displaced against the frictional force caused by the elastic seat portion 30 due to a large vibration during transportation, the vehicle battery pack 80 is displaced. Since the rough guide 40 comes into contact with the battery pack 80, a significant displacement of the vehicle battery pack 80 can be suppressed.

  Here, it is preferable that the rough guide 40 has a height dimension (dimension in the thickness direction of the substrate 10) that can prevent the movement of the vehicle battery pack 80. By providing the rough guide 40 with the height dimension, it is possible to suppress the vehicle battery pack 80 from getting over the rough guide 40 and being largely displaced when the vehicle battery pack 80 abuts.

As described above, according to the configuration of the present embodiment, the reinforcing seat surface portion 20 is disposed at a contact portion where a plurality of types of vehicle battery packs selectively mounted on the transport pallet 1 are in contact. Thus, the versatility of the transport pallet 1 can be enhanced while ensuring the rigidity of the transport pallet 1. In addition, the elastic seating surface portion 30 is disposed at a contact portion where a plurality of types of vehicle battery packs that are selectively mounted on the transport pallet 1 are in contact with each other, thereby causing the vehicle battery pack to be transported. Misalignment can be suppressed. Moreover, since the conveyance pallet 1 is generalized, it is not necessary to prepare a conveyance pallet corresponding to various vehicle battery packs, so that the stock space of the conveyance pallet can be reduced.
(Modification 1)
In the above-described embodiment, the elastic seating surface portion 30 is configured by the low-repulsion elastic foam. However, the present invention is not limited to this, and other elastic members having a function of deforming so that the vehicle battery pack bites in may be used. It can also be used. As the other elastic member, a rubber member such as silicon rubber, fluorine rubber, butyl rubber, urethane rubber, natural rubber, or a silicon rubber sponge sheet can be used. The silicone rubber sponge sheet is a thermal expansion property that expands at a temperature of 80 to 200 degrees Celsius into a thermosetting millable silicone rubber composition mainly composed of a polyorganosiloxane-based polymer, a reinforcing silica filler, and a curing agent. It may be formed by blending 0.1 to 20 parts by weight of microcapsules (100 parts by weight of polyarganosiloxane base polymer). The other elastic member may be a fiber member attached to the upper surface of a base (not shown) formed on the surface of the substrate 10. In this case, the base constitutes a part of the substrate 10. The fiber member may be cotton, hemp, pure hair, acrylic, PET, PS, PP, vinyl chloride. The elastic seating surface portion 30 can be formed by placing a laminate obtained by laminating a plurality of fiber sheets composed of these fibers on the upper surface of the base. These elastic seat portions 30 are recessed when the vehicle battery pack is mounted, and the position shift of the vehicle battery pack can be suppressed by the recess.

(Modification 2)
In the above-described embodiment, the shapes of the reinforcing seat surface portion 20 and the elastic seat surface portion 30 are rectangular in plan view (viewed in the plate thickness direction of the substrate 10), but the present invention is not limited to this, and other shapes are possible. It can also be formed. The other shape may be a circle, an ellipse, or a trapezoid. However, these other shapes need to be provided at positions where they contact an arbitrarily selected vehicle battery pack.

(Modification 3)
In the above-described embodiment, the reinforcing seat surface portion 20 and the elastic seat surface portion 30 can be attached to and detached from the substrate 10. However, the present invention is not limited to this, and only one seat surface portion may be attachable and detachable. . For example, the reinforcing seat surface portion 20 may be made detachable and only the elastic seat surface portion 30 may be made detachable.

DESCRIPTION OF SYMBOLS 1 Transfer pallet 10 Board | substrate 11 Chamfering shape part 20 Reinforcement seat surface part 20a 1st reinforcement seat surface part 20b 2nd reinforcement seat surface part 20c 3rd reinforcement seat surface part 30 Elastic seat surface part 30a 1st elastic seat surface part 30b 2nd elastic seat surface part
30c 3rd elastic bearing surface part 40 Rough guide 80 Battery pack 81 for vehicles Storage case

Claims (6)

A vehicle battery pack transport pallet capable of selectively assembling a plurality of vehicle battery packs having different external shapes,
A substrate,
A first seat surface portion as a reinforcing member raised from the substrate and enhancing the mechanical rigidity of the vehicle battery pack transport pallet;
A second seating surface raised from the substrate and having elasticity,
When an optional vehicle battery pack selected as an assembly target among the plurality of vehicle battery packs is assembled to the vehicle battery pack transport pallet,
The first seat portion is in contact with the selected vehicle battery pack,
The vehicle seat pack transport pallet, wherein the second seat surface portion is elastically deformed by the weight of the selected vehicle battery pack.   2. The vehicle battery pack transport pallet according to claim 1, wherein the second seating surface portion includes a low-rebound resilience foam material.   3. The vehicle battery pack according to claim 2, wherein the second seat surface portion includes a seat member including a Kepler on a contact surface of the low-resilience elastic foam material that contacts the selected vehicle battery pack. Transport pallet.   4. The vehicle battery pack transport pallet according to claim 1, wherein a plurality of the first and second seating surface portions are provided. 5.   5. The vehicle battery pack transport pallet according to claim 1, wherein at least one of the first and second seating surface portions is detachable from the substrate. . At the four corners of the substrate, rough guide portions that protrude from the substrate are formed,
6. The vehicle battery pack transport pallet according to any one of claims 1 to 5, wherein the rough guide portion is formed in an L shape when viewed in the plate thickness direction of the substrate.