Battery attachment device and vehicle

Abstract

To provide a battery attachment device which enables easier battery replacement.SOLUTION: A battery attachment device 1 according to the disclosure comprises: a placing table 10 on which a battery E is placed; and a slide rail base 20 that supports the placing table 10 in a slidable manner. The placing table 10 includes: a latch 11 including a hook 11b; a spring 12 that exerts a tensile force on the latch 11; a link rod 14 connected to the spring 12; and a release cam 15 rotatably connected to the link rod 14. As the placing table 10 slides with respect to the slide rail base 20 and a rotation angle of the release cam 15 changes, the tensile force of the spring 12 changes and an engaged state between the hook 11b and a striker Ea changes, thus switching between locking and unlocking of the holding state of the battery E.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to a battery mounting device and a vehicle. [Background technology]

[0002] BACKGROUND ART Electric vehicles (for example, electric cars and electric scooters) equipped with a battery as a driving power source have been known in the past.

[0003] In recent years, battery swapping systems have been increasingly adopted for this type of electric vehicle. These battery swapping systems are designed based on the concept that when the stored power of a vehicle's battery becomes low, the battery is swapped with another fully charged battery at a battery swap station, instead of having to recharge the battery each time. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent application No. 2023-134543 [Patent Document 2] Patent application No. 2023-014064 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, the inventor of the present application is considering adopting a battery mounting device that allows the battery to be pulled out / stored between a storage position inside the vehicle and an attachment / detachment position outside the vehicle via a sliding portion, in order to enable smooth replacement of the installed battery in this type of vehicle (see, for example, Patent Documents 1 and 2).

[0006] Such a battery mounting device may, for example, comprise a mounting base on which the battery is placed and a slide rail base that supports the mounting base so that the mounting base can slide, and the battery can be removed (i.e., unlocked) when the mounting base is in the mounting position on the slide rail base outside the vehicle, and the battery can be locked when the mounting base is in the storage position on the slide rail base inside the vehicle. This configuration makes it easy to remove and install batteries from and into vehicles at battery exchange stations.

[0007] Here, the term "locked battery" refers to a state in which the battery cannot be removed from the mounting base, and the term "unlocked battery" refers to a state in which the battery can be removed from the mounting base (the same applies below).

[0008] While studying the optimal design of such a battery mounting device, the inventors of the present application came to the realization that, with current battery mounting devices, the operation to release the latch that locks the battery must be performed manually, and that there is room for improvement in order to simplify and fully automate the battery replacement process. Furthermore, current battery mounting devices also require an operating mechanism such as a lever to release the latch, which may increase the number of parts.

[0009] The present disclosure has been made in consideration of the above-mentioned problems, and aims to provide a battery mounting device that enables easier battery replacement. [Means for solving the problem]

[0010] The main invention that solves the above-mentioned problems is: A battery mounting device comprising a mounting base on which a battery is mounted and a slide rail base that supports the mounting base so that the battery can slide, The slide rail base is Equipped with a fixed pin for cam rotation, The mounting table is a latch rotatably attached to the mounting base and having a hook for engaging with a striker attached to the battery; a first cam that rotates by contacting the fixing pin when the mounting table slides; a spring and a link rod connecting the latch and the first cam; Equipped with The spring has a first end connected to the latch and a second end pivotally connected to the link rod, and applies a pulling force to the first end. A battery mounting device.

[0011] In other respects, The battery mounting device is mounted on a vehicle. [Effects of the Invention]

[0012] According to the battery mounting device of the present invention, battery replacement can be carried out more easily. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 10 is a diagram showing an example of an application position of the battery mounting device. [Figure 2] FIG. 1 is a perspective view showing an example of the overall configuration of a battery mounting device. [Figure 3] FIG. 10 is a diagram illustrating the sliding movement of the mounting base in the battery mounting device. [Figure 4] FIG. 10 is a diagram showing an example of the configuration of a locking mechanism of the battery mounting device. [Figure 5] A diagram showing an example of the configuration of a striker attached to a battery. [Figure 6] FIG. 10 is a diagram illustrating the operation of the locking mechanism of the battery mounting device (locked state); [Figure 7] FIG. 10 is a diagram illustrating the operation of the locking mechanism of the battery mounting device (transition state between the locked state and the unlocked state); [Figure 8] FIG. 10 is a diagram illustrating the operation of the locking mechanism of the battery mounting device (unlocked state) DETAILED DESCRIPTION OF THE INVENTION

[0014] Preferred embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In this specification and drawings, components having substantially the same functions are designated by the same reference numerals, and redundant description will be omitted.

[0015] In each figure, a common Cartesian coordinate system (X, Y, Z) is shown to clarify the positional relationship of each component. The positive direction of the Z axis represents the vertically upward direction of the vehicle, the positive direction of the X axis represents the forward direction of the vehicle, and the positive direction of the Y axis represents the lateral direction of the vehicle.

[0016] An example of the configuration of a battery mounting device according to one embodiment of the present invention (hereinafter referred to as "battery mounting device 1") will be described below.

[0017] Fig. 1 is a diagram showing an example of an application position of the battery mounting device 1. Fig. 2 is a perspective view showing an example of the overall configuration of the battery mounting device 1. Fig. 3 is a diagram illustrating the sliding movement of the mounting base 10 in the battery mounting device 1.

[0018] The battery mounting device 1 is mounted on an electric vehicle C such as an electric car or a hybrid car, and holds a battery used as a driving power source for the vehicle C. Note that FIG. 1 illustrates a large vehicle C such as a truck as an example of a suitable application of the battery mounting device 1.

[0019] The battery mounting device 1, for example, holds the battery E fixed to the vehicle frame Cf of the vehicle C, and allows the battery E to be attached to and detached from the vehicle frame Cf of the vehicle C as needed. The battery mounting device 1 is attached to, for example, the side of the vehicle frame Cf. The vehicle frame Cf of the vehicle C (for example, a steel frame with a U-shaped cross section) extends along the front-rear direction of the vehicle C, is disposed on both the left and right sides of the vehicle C, and supports the vehicle body and various on-board devices.

[0020] The battery E is, for example, a high-voltage battery that supplies operating power for driving the vehicle C. As the battery E, for example, a 200V-class lithium ion battery is used.

[0021] 1 shows a state in which one battery E is attached to each of the left and right sides of the vehicle frame Cf, and two battery mounting devices 1 are provided to separately hold the two batteries E. The following description assumes that the two battery mounting devices 1 have the same configuration, and only describes the configuration of the battery mounting device 1 mounted on the negative Y side (i.e., the right side surface of the vehicle C) of the two battery mounting devices 1.

[0022] The battery mounting device 1 is made up of a mounting base 10 on which the battery E is mounted, a slide rail base 20 that supports the mounting base 10 so that the mounting base 10 can slide, and a battery fixing portion 30 (see FIG. 3).

[0023] The slide rail base 20 has, for example, a slide rail base 20b attached to the outer side surface (here, the right side surface) of the vehicle frame Cf, and is composed of two guide members 20a extending horizontally from the slide rail base 20b toward the outside of the vehicle C (i.e., the negative Y direction side). The slide rail base 20 guides the mounting base 10 to be slidable between a battery storage position (left diagram in FIG. 2) and a battery attachment / detachment position (right diagram in FIG. 2) inside the vehicle C (FIG. 3).

[0024] The guide member 20a is configured, for example, such that the leading end guide member is housed within the base guide member in a nested manner. That is, the guide member 20a expands and contracts when the leading end guide member is pulled out from the base guide member toward the outside of the vehicle (i.e., the negative Y direction).

[0025] The mounting base 10 is a base on which the battery E is placed, and is disposed, for example, on two guide members 20a so as to span between the two guide members 20a of the slide rail base 20. The mounting base 10 is slidable along the extension direction (±Y direction) of the two guide members 20a of the slide rail base 20.

[0026] The upper surface of the mounting table 10 forms a base 10a on which the battery E is placed. The base 10a of the mounting table 10 has a stepped shape, for example, with the center between the two guide members 20a being recessed more than the other sides. A hole 10aa is formed in the center of the base 10a of the mounting table 10, and a locking mechanism 1E for locking the battery E to the mounting table 10 is disposed in the hole 10aa. That is, the locking mechanism 1E is attached to the base 10a of the mounting table 10 via a latch bracket 10B and a cam bracket 10C so that the latch 11 is exposed from the base 10a of the mounting table 10 (described later with reference to FIG. 4).

[0027] 2 shows a state in which the platform 10 is in the battery storage position of the vehicle C, and the right side of FIG. 2 shows a state in which the platform 10 is pulled out from the vehicle C to the battery attachment / detachment position.

[0028] The battery fixing unit 30 fixes the battery E to the side surface of the vehicle frame Cf when the mount 10 is in the battery storage position of the vehicle C. The method for fixing the battery by the battery fixing unit 30 is arbitrary, but the battery fixing unit 30 is, for example, a latch mechanism attached to the side surface of the vehicle frame Cf, and when the mount 10 is in the battery storage position of the vehicle C, the battery fixing unit 30 fixes the battery E to the side surface of the vehicle frame Cf by engaging with a striker Ec (see FIG. 7) attached to the side surface of the battery E. Note that for an example of the configuration of the battery fixing unit 30, please refer to Patent Document 2, a prior application of the applicant of the present application, for example.

[0029] When storing the battery E in the vehicle C, the battery E is placed on the mounting base 10 when the mounting base 10 is in the battery attachment / detachment position. Then, while placed on the mounting base 10, the battery E is slid along the slide rail base 20 and guided from the battery attachment / detachment position to the battery storage position. Then, at the battery storage position, the battery E is fixed to the vehicle frame Cf, for example, by the battery fixing portion 30. At this time, the terminal portion Eb of the battery E is connected to a connector (not shown) inside the vehicle C, thereby completing the storage of the battery E in the vehicle C.

[0030] On the other hand, when removing the battery E from inside the vehicle C, first, the battery E is released from its fixed state to the vehicle frame Cf, for example, at the battery fixing portion 30. Then, while placed on the mounting base 10, the battery E is slid along the slide rail base 20 and guided from the battery storage position inside the vehicle C to the battery attachment / detachment position. Then, at the battery attachment / detachment position, the battery E is lifted up, for example, onto a battery exchange machine at a battery exchange station, and removed from the vehicle C.

[0031] For an example of the operation of the battery exchange machine in the battery exchange station, please refer to, for example, Patent Document 1, a prior application of the applicant of the present application.

[0032] Here, the battery mounting device 1 of this embodiment is characterized in that the locking mechanism 1E (see Figure 2) can automatically switch the holding state of the battery E between locked and unlocked as the mounting base 10 slides.

[0033] For example, the battery mounting device 1 locks the holding state of the battery E when the mounting base 10 is in the battery storage position, and unlocks the holding state of the battery E when the mounting base 10 is in the battery attachment / detachment position. Note that the locked holding state of the battery E means that the battery E cannot be removed from the mounting base 10, and the unlocked holding state of the battery E means that the battery E can be removed from the mounting base 10.

[0034] The configuration of the locking mechanism 1E provided in the battery mounting device 1 according to this embodiment will be described in detail below.

[0035] Fig. 4 is a diagram showing an example of the configuration of the lock mechanism 1E of the battery mounting device 1. Fig. 5 is a perspective view of the lock mechanism 1E of the battery mounting device 1 as seen from below. Fig. 6 is a diagram for explaining an assembly process of the lock mechanism 1E of the battery mounting device 1.

[0036] FIG. 5 is a diagram showing an example of the configuration of a striker Ea attached to a battery E.

[0037] 6, 7, and 8 are diagrams illustrating the operation of the locking mechanism 1E of the battery mounting device 1. Note that Fig. 6 shows the locked state, Fig. 7 shows the transition state between the locked state and the unlocked state, and Fig. 8 shows the unlocked state.

[0038] The locking mechanism 1E of the battery mounting device 1 is a mechanism that locks the battery E in a state where it cannot be removed from the mounting base 10 by engaging with a striker Ea (FIG. 5) attached to the underside of the battery E. The striker Ea is, for example, a rod-shaped member, and is attached to the underside of the battery E by a bracket so as to extend in the ±X directions at a position that protrudes from the underside of the battery E.

[0039] When the battery E is placed on the table 10, the striker Ea on the bottom surface of the battery E is aligned with the position of the locking mechanism 1E (the position of the hook 11b, which will be described later).

[0040] The slide rail base 20 is provided with a fixing pin 21 for cam rotation (see FIGS. 2 and 4).

[0041] The fixing pin 21 is attached to the side surfaces of the two guide members 20a of the slide rail base 20 so as to bridge between them (i.e., so as to extend in the ±X direction). The fixing pin 21 is located, for example, below the base portion 10a of the mounting table 10.

[0042] The mounting position of the fixing pin 21 is a position where the fixing pin 21 engages with (i.e., comes into contact with) the release cam 15 attached to the mounting table 10 when the mounting table 10 slides on the slide rail base 20. When the mounting table 10 slides on the slide rail base 20, the fixing pin 21 engages with the release cam 15 and rotates the release cam 15.

[0043] In this embodiment, the fixing pin 21 is disposed so as to be on the negative Y-axis side of the mounting table 10 when the mounting table 10 is in the battery storage position. The fixing pin 21 is disposed in a position where it engages with the release cam 15 attached to the mounting table 10 when the mounting table 10 slides in the negative Y-axis direction from the battery storage position to the battery attachment / detachment position.

[0044] The mounting table 10 includes a latch 11, a spring 12, a latch cam 13, a link rod 14, and a release cam 15. In this embodiment, these components are attached to the base portion 10a of the mounting table 10 at the position of the hole portion 10aa of the mounting table 10 via a latch bracket 10B and a cam bracket 10C (see FIGS. 2 and 4).

[0045] The latch 11 has a hook 11b at its upper end for engaging with a striker Ea attached to the battery E, and is rotatably supported relative to the mounting base 10. In this embodiment, the latch 11 is supported at the center of the latch 11 by a support pin 11a via a bracket 10B so as to be rotatable about the X axis relative to the mounting base 10. The latch 11 is disposed such that the gripping portion of the hook 11b faces in the positive Y direction, and the hook 11b is exposed from the base portion 10a of the mounting base 10.

[0046] When the latch 11 is at the rotation angle shown in FIG. 6, the hook 11b engages with the striker Ea attached to the battery E, fixing the battery E on the mounting base 10. When the latch 11 is rotated from the rotation angle shown in FIG. 6 to the rotation angle shown in FIG. 8, the latch 11 releases the engagement between the hook 11b and the striker Ea, allowing the battery E to be removed from the mounting base 10. Let's say.

[0047] A spring 12 is connected to the lower end of the latch 11, applying a pulling force to rotate the latch 11 clockwise around the X axis. When the release cam 15 is at the rotation angle shown in Fig. 6 (hereinafter referred to as the "locked rotation angle"), the pulling force from the spring 12 is small (or the latch 11 receives a counterclockwise pushing force from the spring 12), so the hook 11b of the latch 11 maintains an engaged state with the striker Ea attached to the battery E. On the other hand, when the release cam 15 is at the rotation angle shown in Fig. 8 (hereinafter referred to as the "unlocked rotation angle"), the pulling force from the spring 12 is large, so the latch 11 operates to release the engaged state between the hook 11b and the striker Ea.

[0048] Spring 12 exerts a pulling force to rotate latch 11 clockwise. A first end 12a on the negative Y side of spring 12 is connected to the lower end of latch 11. A second end 12b on the positive Y side of spring 12 is connected to a first end 14a on the negative Y side of link rod 14. The positive Y side is the inside in the vehicle width direction, and the negative Y side is the outside in the vehicle width direction. In other words, spring 12 exerts a pulling force on latch 11 along the Y axis direction (vehicle width direction).

[0049] The connection position between spring 12 and link rod 14 (i.e., the position of second end 12b of spring 12) is not fixed to mounting base 10, and the position of second end 12b of spring 12 relative to first end 12a of spring 12 (i.e., the length of spring 12) changes with the swinging motion of link rod 14. In other words, the pulling force that spring 12 applies to latch 11 changes with the swinging motion of link rod 14.

[0050] Link rod 14 swings left and right (i.e., in the ±Y directions) in conjunction with the rotation of release cam 15, changing the relative position of second end 12b of spring 12 with respect to latch 11. First end 14a, which is the end on the negative Y side of link rod 14, is rotatably connected to second end 12b of spring 12. Second end 14b, which is the end on the positive Y side of link rod 14, is rotatably connected to release cam 15. The connection between first end 14a of link rod 14 and second end 12b of spring 12 is, for example, a pin joint connection, and is not fixed to mounting base 10. Similarly, the connection between second end 14b of link rod 14 and release cam 15 is, for example, a pin joint connection, and is not fixed to mounting base 10. As a result, as the release cam 15 rotates, the link rod 14 swings in the direction in which the link rod 14 and the spring 12 are connected (i.e., the Y-axis direction), changing the relative position of the spring 12 with respect to the latch 11.

[0051] In this embodiment, link rod 14 swings along the ±Y directions while changing the rod axial direction (which indicates the direction in which link rod 14 extends; the same applies below) relative to the Y axis in conjunction with the rotational movement of release cam 15. Specifically, link rod 14 swings in conjunction with the rotational movement of release cam 15 such that the rod axial direction changes from a predetermined angle on the negative side (for example, −10 degrees) to a predetermined angle on the positive side (for example, +30 degrees) relative to the Y axis.

[0052] One end of the release cam 15 is rotatably connected to the second end 14b of the link rod 14. When the mounting table 10 slides, the release cam 15 rotates by coming into contact with a fixed pin 21 attached to the slide rail base 20, causing the link rod 14 to swing left and right (i.e., in the ±Y direction). This changes the relative position of the second end 12b of the spring 12 with respect to the latch 11, changes the pulling force that the spring 12 applies to the latch 11, and changes the engagement state between the hook 11b and the striker Ea.

[0053] In this embodiment, the release cam 15 is supported by a support pin 15a at the center position of the release cam 15. The release cam 15 is supported rotatably around the X axis with respect to the mounting table 10. The contact portion of the release cam 15 that comes into contact with the fixed pin 21 is formed, for example, in a V shape when viewed from the side.

[0054] Furthermore, a stopper fixing pin 15b serving as a rotation stopper is disposed adjacent to the release cam 15 on the cam bracket 10C that mounts the release cam 15 to the mounting table 10. That is, the release cam 15 stops rotating when it rotates to the position of the stopper fixing pin 15b. Here, the stopper fixing pin 15b restricts the unlocked rotation angle of the release cam 15. Restricted by the stopper fixing pin 15b, the release cam 15 according to this embodiment rotates clockwise from 0 degrees to 128.8 degrees, the unlocked rotation angle shown in FIG. 8, with the locking rotation angle shown in FIG. 6 being 0 degrees, around the support pin 15a as the rotation center.

[0055] Latch cam 13 is supported by support pin 13a at a position adjacent to latch 11 so as to be rotatable around the X-axis relative to mounting base 10. One end of latch cam 13 (here, the position of hole 13b) is rotatably connected to first end 14a of link rod 14, and rotates in conjunction with the rotation of release cam 15.

[0056] When the release cam 15 reaches the locking rotation angle shown in Fig. 6, the latch cam 13 rotates to come into contact with the latch 11, functioning as a stopper to prevent rotation of the latch 11. When the release cam 15 reaches the unlocking rotation angle shown in Fig. 8, the latch cam 13 rotates to come out of contact with the latch 11, allowing the latch 11 to rotate.

[0057] The latch cam 13 is not an essential component of the battery mounting device 1, but is useful in that it can strengthen the locked state of the battery E. In other words, if the latch cam 13 were not provided, the latch 11 would not function to maintain the locked rotation angle when the battery E is in the locked state. Therefore, when a force is applied from the outside to forcibly pull out the battery E, the latch 11 may rotate due to the pulling force and release the lock.

[0058] In this embodiment, a first end 14a of a link rod 14 is connected by a pin to a hole 13b formed at one end of the latch cam 13, and a second end 12b of the spring 12 is attached to the hole 13b.

[0059] <Operation of lock mechanism 1E of battery mounting device 1> Next, the operation of the locking mechanism 1E of the battery mounting device 1 according to this embodiment will be described with reference to FIGS.

[0060] In the locking mechanism 1E of the battery mounting device 1 according to this embodiment, as the mounting base 10 slides relative to the slide rail base 20 and the rotation angle of the release cam 15 changes, the pulling force of the spring 12 changes, the engagement state between the hook 11b and the striker Ea changes, and the holding state of the battery E is automatically switched between locked and unlocked.

[0061] Specifically, as shown in Fig. 6, when the mounting base 10 is in the battery storage position, the rod axis of the link rod 14 is located below the rotation center of the release cam 15 and is located on the minus Y direction side of the swingable range. At this time, the length of the spring 12 is shorter than normal (i.e., the free length), so the spring 12 applies a pressing force to the latch 11 so that the latch 11 rotates counterclockwise around the X axis. In addition, at this time, the latch cam 13 is in contact with the latch 11, so the rotation of the latch 11 is restricted.

[0062] That is, in the state shown in FIG. 6, the latch 11 maintains the state in which the hook 11b is engaged with the striker Ea, and the battery E is locked in a held state.

[0063] Here, as shown in Fig. 7, when the mounting base 10 slides from the battery storage position (Fig. 6) toward the battery attachment / detachment position, the fixing pin 21 comes into contact with the release cam 15, and the release cam 15 receives a pressing force from the fixing pin 21 and rotates clockwise around the X axis with the support pin 15a as the center of rotation. As a result, the link rod 14 gradually rotates so that the rod axis points upward relative to the center of rotation of the release cam 15, and the link rod 14 moves in the positive Y direction within its swingable range. This also causes the latch cam 13 to rotate so as to release its contact with the latch 11.

[0064] In the transition state shown in FIG. 7, the length of the spring 12 is still only slightly longer than normal (i.e., the free length), so the pulling force exerted by the spring 12 on the latch 11 is weak, and the engagement state between the hook 11b and the striker Ea is maintained.

[0065] 8, when the mounting table 10 further slides from the position in FIG. 7 toward the battery attach / detach position, the release cam 15 receives a pressing force from the fixing pin 21 and further rotates clockwise around the X axis with the support pin 15a as the center of rotation. As a result, the link rod 14 further rotates so that the rod axis faces upward relative to the center of rotation of the release cam 15, and the link rod 14 moves in the positive Y direction within its swingable range.

[0066] 8, the length of the spring 12 becomes longer than normal (i.e., the free length), and the spring 12 exerts a pulling force on the latch 11 so that the latch 11 rotates clockwise around the X axis. As a result, the latch 11 releases the engagement between the hook 11b and the striker Ea, and the holding state of the battery E becomes unlocked.

[0067] The locking mechanism 1E of the battery mounting device 1 of this embodiment operates as described above, automatically switching the holding state of the battery E between locked and unlocked as the mounting base 10 slides relative to the slide rail base 20.

[0068] <Effects> As described above, in the battery mounting device 1 according to this embodiment, The slide rail base 20 is A fixed pin 21 for cam rotation is provided, The mounting table 10 is a latch 11 rotatably attached to the mounting base 10, having a hook 11b at a first end for engaging with a striker Ea attached to the battery E, and supported rotatably; a spring 12 having a first end 12a connected to a second end side of the latch 11 and applying a pulling force to the second end side of the latch 11; a link rod 14 having a first end 14a connected to a second end 12b of the spring 12; a release cam 15 rotatably connected to the second end 14b of the link rod 14, which rotates by contacting the fixed pin 21 as the mounting table 10 slides, thereby causing the link rod 14 to swing; As the mounting table 10 slides relative to the slide rail base 20 and the rotation angle of the release cam 15 changes, the pulling force of the spring 12 changes, the engagement state between the hook 11b and the striker Ea changes, and the holding state of the battery E is switched between locked and unlocked.

[0069] According to the battery mounting device 1 of this embodiment, the battery E is automatically held in a holding state (here, the battery E is held in a holding state) in accordance with the sliding movement of the mounting table 10 on the slide rail base 20. This makes it possible to switch between locked and unlocked the holding state (retaining state related to the restriction on the up-down movement of E). In other words, this eliminates the need for the user to manually perform an unlocking operation using an operating mechanism such as a lever or cable.

[0070] Furthermore, with this configuration, it is possible to switch the holding state of battery E between locked and unlocked without requiring complex operations, and therefore it is particularly useful for battery exchange systems using robots (e.g., battery exchange machines).

[0071] Furthermore, according to the battery mounting device 1 of this embodiment, even if the length of the slide rail base 20 or the distance by which the mounting base 10 can be moved on the slide rail base 20 is changed in design to accommodate various vehicle models, the parts of the locking mechanism 1E (i.e., the latch 11, spring 12, link rod 14, cam, etc.) themselves can be standardized. This makes it possible to achieve cost reductions by standardizing parts.

[0072] The present invention is not limited to the above-described embodiment, but can be applied to various modified aspects.

[0073] The above embodiment has shown an example of the connection state of the latch 11, spring 12, latch cam 13, link rod 14, and release cam 15 in the battery mounting device 1 of the present invention. However, in the battery mounting device 1 of the present invention, these members may be indirectly connected via a link bracket or the like.

[0074] In the above embodiment, the slide rail base 20 used in the battery mounting device 1 of the present invention is configured with the extendable guide member 20a. However, the slide rail base 20 used in the present invention does not necessarily have to be extendable.

[0075] Although specific examples of the present invention have been described above in detail, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and alterations of the specific examples exemplified above. [Industrial Applicability]

[0076] According to the battery mounting device of the present invention, battery replacement can be carried out more easily. [Explanation of symbols]

[0077] 1 Battery mounting device 1E Locking mechanism 10. Mounting table 10a Base 10aa hole 10B Latch bracket 10C cam bracket 11 Latch 11a Support pin 11b hook 12 Spring 13 Latch Cam 14 Link rod 15 Release cam 20 Slide rail base 20a Guide member 20b Slide rail base 21 Fixing pin 21B Pin Bracket 30 Battery fixing part C vehicle Cf vehicle frame E Battery Ea Striker Eb terminal section

Claims

1. A battery mounting device comprising a mounting base on which a battery is mounted and a slide rail base that supports the mounting base so that the battery can slide, The slide rail base is Equipped with a fixed pin for cam rotation, The mounting table is a latch rotatably attached to the mounting base and having a hook for engaging with a striker attached to the battery; a first cam that rotates by contacting the fixing pin when the mounting table slides; a spring and a link rod connecting the latch and the first cam; Equipped with The spring has a first end connected to the latch and a second end pivotally connected to the link rod, and applies a pulling force to the first end. Battery mounting device.

2. the link rod has a first end connected to the first cam and a second end connected to the second end of the spring; The link rod swings in the direction in which the link rod and the spring are connected in accordance with the rotational movement of the first cam, thereby changing the relative position of the spring with respect to the latch. The battery mounting device of claim 1 .

3. When the mounting base slides relative to the slide rail base and comes into contact with the fixing pin, the rotation angle of the first cam changes, and the tension force of the spring changes, changing the engagement state between the hook and the striker, thereby switching the holding state of the battery between locked and unlocked. The battery mounting device of claim 1 .

4. When the mounting base is in the battery storage position, the battery is held in a locked state; When the mounting base is in the battery attachment / detachment position, the holding state of the battery is set to an unlocked state. The battery mounting device of claim 1 .

5. the mounting base further includes a second cam rotatably connected to the first end of the link rod and rotating in conjunction with the rotation of the first cam, The second cam abuts against the latch when the battery holding state is in the locked state, and functions as a stopper to prevent the latch from rotating, and is separated from the latch when the battery holding state is in the unlocked state. The battery mounting device of claim 1 .

6. A vehicle equipped with the battery mounting device according to claim 1.

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