Battery pack unlocking mechanism and battery replacement equipment

Abstract

The utility model provides a battery pack unlocking mechanism and battery replacement equipment, and relates to the technical field of battery replacement. The middle part of the unlocking swing rod is rotationally connected with the bottom plate; the unlocking driving assembly comprises a first telescopic assembly and a second telescopic assembly, the first telescopic assembly abuts against the unlocking swing rod, and the second telescopic assembly is rotationally connected with the bottom of the unlocking swing rod; the first telescopic assembly is used for pushing the unlocking swing rod to rotate to the avoiding position for avoiding the lock rod, and the second telescopic assembly is used for pulling the unlocking swing rod to rotate towards the jacking position for jacking the lock rod. Compared with the prior art, the unlocking mechanism has the advantages that the structural complexity of the unlocking swing rod is optimized, the unlocking state and the stored battery avoiding state are switched back and forth through the first telescopic assembly and the second telescopic assembly, the unlocking mechanism completes the unlocking action or the avoiding action on the battery replacing equipment, manual unlocking is not needed in the unlocking process, and the unlocking efficiency is improved. And unlocking is fast and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of battery replacement, in particular to a battery pack unlocking mechanism and battery replacement equipment. Background Art

[0002] The use of electric vehicles is becoming more and more widespread. Since the battery pack of an electric vehicle is heavy, in order to prevent the battery pack from moving or falling while the vehicle is driving, the battery pack needs to be fixed and locked at the crossbeam of the electric vehicle body. This provides a stable fixation during the operation of the vehicle and a convenient unlocking method during the battery replacement operation to ensure smooth battery replacement operations.

[0003] In the prior art, the Chinese patent document (Announcement No.: CN110001596B, Patent Name: Unlocking Device for Battery Pack and Lock Mechanism and Battery Replacement Equipment Including the Same) discloses in its technical solution that “it includes a first unlocking mechanism, the first unlocking mechanism is used to unlock the primary locking mechanism; a second unlocking mechanism, the second unlocking mechanism is used to unlock the secondary locking mechanism; and a linkage mechanism, the linkage mechanism is connected to the first unlocking mechanism and the second unlocking mechanism, so that the second unlocking mechanism can unlock the secondary locking mechanism under the drive of the first unlocking mechanism; the linkage mechanism includes: a first linkage unit, the first linkage unit is connected to the first unlocking mechanism; and a second linkage unit, the second linkage unit is connected to the second unlocking mechanism; wherein, the second linkage unit is slidably arranged on the first linkage unit.”

[0004] Combined with the description and drawings of the patent document, when unlocking, the unlocking rod is moved to contact the lower protrusion of the lock rod, but the force of the unlocking rod is insufficient and it is necessary to act on the battery pack through the corresponding mechanism on the battery exchange platform, so that the first-level lock tongue is no longer tightly fitted with the first-level lock shaft, so that the force of the unlocking rod can make the lock rod unlock upward. The unlocking rod has a complex structure, and the unlocking method is not quick and convenient enough. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art, provides a battery pack unlocking mechanism and battery replacement equipment, optimizes the complexity of the unlocking rocker structure, and makes unlocking quick and convenient.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] A battery pack unlocking mechanism, unlocking method and battery replacement equipment, including a base plate; an unlocking rocker arm, the middle part of which is rotatably connected to the base plate; an unlocking drive assembly, including a first telescopic assembly and a second telescopic assembly, the first telescopic assembly abutting the unlocking rocker arm, and the second telescopic assembly rotatably connected to the bottom of the unlocking rocker arm; the first telescopic assembly is used to push the unlocking rocker arm to rotate to an avoidance position for avoiding a locking rod, and the second telescopic assembly is used to pull the unlocking rocker arm to rotate toward a lifting position that lifts the locking rod.

[0008] Furthermore, the unlocking rocker arm is provided with an inclined surface extending upward, and the locking rod is moved by the inclined surface.

[0009] Furthermore, the first telescopic assembly is used to push the unlocking rocker arm to rotate toward the avoidance position; and the second telescopic assembly is used to drive the unlocking rocker arm to rotate to the jacking position when the first telescopic assembly is in the retracted position.

[0010] Furthermore, the first telescopic assembly includes a first telescopic member, the first telescopic member is connected to the telescopic member A, the end of the telescopic member A is rotatably connected to a rolling member, and the rolling member corresponds to the lower end of the middle part of the unlocking rocker.

[0011] Furthermore, a fixing seat is provided on the bottom plate, and the ends of the first telescopic member and the second telescopic assembly are fixedly provided on the fixing seat.

[0012] Furthermore, the telescopic member A is connected to a sliding member, a track is provided on the bottom plate, and the sliding member is slidably connected to the track.

[0013] Furthermore, it also includes a telescopic detection member, which is connected to the unlocking rocker and is used to detect the rotation position of the unlocking rocker.

[0014] Furthermore, the unlocking rocker arm is rotatably connected to the base plate through a mounting base, and a first sensor detection component is provided under the mounting base, and the first sensor detection component is used to be triggered when the unlocking rocker arm is rotated to the avoidance position; it also includes a second sensor detection component, and the second sensor detection component is used to be triggered when the locking rod is in the locking position.

[0015] A battery exchange device includes a vehicle body for carrying a battery pack, wherein the vehicle body is provided with a battery pack unlocking mechanism as described in any one of the above.

[0016] A method for unlocking a battery pack for battery replacement includes the following steps:

[0017] S1. The lifting platform descends to the battery access level, and the vehicle and battery pack descend onto the battery swapping device. The battery pack's card slots fall into the U-shaped movable slot of the battery swapping device, and the battery pack lands on the conveyor belt of the battery swapping device's side shift mechanism. The unlocking lever is pressed down by the locking lever of the battery pack's locking mechanism, and the telescopic detection member provides feedback that the unlocking lever has been pressed down.

[0018] S2. The conveyor belt of the side-shift mechanism moves the battery pack toward the locking mechanism via the U-shaped movable slot (this action is referred to as unlocking), releasing the locked state of the locking mechanism. The depressed unlocking lever, hingedly connected to the second telescopic assembly, automatically springs up, pushing open the locking rod of the vehicle's locking mechanism. The telescopic detection component then checks whether the unlocking lever has properly springed up. If it does not, the secondary unlocking process begins.

[0019] S3. After the unlocking lever pops up, the telescopic detection component will emit a signal change, indicating successful unlocking. The side shift mechanism then activates the conveyor belt to move the battery pack horizontally out of the locking mechanism's lock slot.

[0020] S4. The lifting platform rises to the detection level, and the battery swapping equipment checks whether the battery pack has landed on the battery swapping equipment. When the battery pack is detected to have landed on the battery swapping equipment, the lifting platform rises to a safe height, completing the unlocking process;

[0021] S5. When entering the secondary unlocking process, the side shift mechanism will perform a secondary unlocking action, taking into account the possibility that the vehicle's locking mechanism may become blocked by foreign objects while the vehicle is in motion, thus preventing normal unlocking. Each time the unlocking action is performed, the telescopic detection component will determine the state of the unlocking rocker to determine whether the unlocking is successful.

[0022] S6. When the state of the telescopic detection member changes, that is, the unlocking rocker pops up, and unlocking is completed; after this, if the state of the telescopic detection member still does not change, it is determined that the unlocking has failed and an alarm is issued.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The unlocking mechanism optimizes the structural complexity of the unlocking rocker arm, and realizes switching back and forth between the unlocking state and the battery storage avoidance state through the first telescopic component and the second telescopic component, so that the unlocking mechanism can complete the unlocking action or avoidance action on the battery exchange equipment, and no manual unlocking is required during unlocking, and unlocking is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1This is an overall diagram of the battery pack unlocking mechanism of an embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the unlocking swing lever and the mounting base of an embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of a first telescopic assembly according to an embodiment of the present utility model;

[0029] Figure 4 This is a schematic diagram of a second telescopic assembly according to an embodiment of the present utility model;

[0030] Figure 5 This is an enlarged view of the battery pack locking embodiment of the present utility model;

[0031] Figure 6 This is an enlarged view of the battery pack unlocking embodiment of the present utility model;

[0032] Figure 7 This is a schematic diagram of the battery replacement device of the embodiment of the utility model Figure 1 , in locked state;

[0033] Figure 8 This is an enlarged view of circle A of the battery-swapping device of an embodiment of the present utility model;

[0034] Figure 9 This is a schematic diagram of the battery replacement device of the embodiment of the utility model Figure 2 , in the unlocking state;

[0035] Figure 10 This is an enlarged view of circle B of the battery-swapping device in an embodiment of the present utility model;

[0036] Figure 11 This is a schematic diagram of the battery replacement device of the embodiment of the utility model Figure 3 , in an untied state;

[0037] Figure 12 This is an enlarged view of circle C of the battery-swapping device in an embodiment of the present utility model;

[0038] Figure 13 This is a flowchart of unlocking the battery replacement device in an embodiment of the present utility model.

[0039] In the figure: 1-battery pack, 2-bottom plate, 3-first telescopic assembly, 301-first telescopic member, 302-telescopic member A, 303-rolling member, 4-second telescopic assembly, 5-unlocking rocker, 501-inclined surface, 6-locking rod, 7-lock tongue, 8-lock base, 801-lock slot, 9-mounting base, 10-fixed seat, 11-sliding member, 12-track, 13-first sensor detection assembly, 14-telescopic detection member, 15-second sensor detection assembly, 16-body, 17-U-shaped mobile card slot, 18-conveyor belt. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0041] like Figures 1 to 2 As shown, a battery pack unlocking mechanism and a battery replacement device include a base plate 2, the middle part of the base plate 2 is rotatably connected to the unlocking rocker 5, and an unlocking drive assembly is arranged next to the unlocking rocker 5. The unlocking drive assembly includes a first telescopic assembly 3 and a second telescopic assembly 4, the first telescopic assembly 3 abuts the unlocking rocker 5, and the second telescopic assembly 4 is rotatably connected to the bottom of the unlocking rocker 5; the first telescopic assembly 3 is used to push the unlocking rocker 5 to rotate to the avoidance position of the avoidance lock rod 6, and the second telescopic assembly 4 is used to pull the unlocking rocker 5 toward the lifting position of the lifting lock rod 6, thereby optimizing the structural complexity of the unlocking rocker 5, and realizing the back-and-forth switching between the unlocking state and the battery avoidance state through the first telescopic assembly 3 and the second telescopic assembly 4, so that the unlocking mechanism completes the unlocking action or avoidance action on the battery replacement device.

[0042] Specifically, if Figure 3 As shown, the first telescopic component 3 includes a first telescopic member 301, the first telescopic member 301 is connected to the telescopic member A302, the end of the telescopic member A302 is rotatably connected to the rolling member 303, the rolling member 303 corresponds to the lower end of the middle part of the unlocking rocker 5, the telescopic member A302 is connected to the sliding member 11, and the base plate 2 is provided with a track 12, the sliding member 11 is slidably connected to the track 12, the initial state of the first telescopic component 3 is a retracted state, the telescopic member A302 is an L-shaped structure, which can be avoided in a limited space, so that the unlocking rocker 5 is convenient to swing and switch to the unlocking state, the first telescopic member 301 is a cylinder or an oil cylinder, when the first telescopic member 301 is extended, it will drive the telescopic member A302 to perform a translational motion on the track 12 through the sliding member 11, so that the rolling member 303 pushes the unlocking rocker 5 to move, so that the unlocking rocker 5 swings and switches to the avoidance state, wherein the rolling structure of the rolling member 303 can push the unlocking rocker 5 more smoothly.

[0043] like Figure 4 As shown, the first telescopic assembly 3 is used to push the unlocking rocker 5 to rotate toward the avoidance position; the second telescopic assembly 4 is used to drive the unlocking rocker 5 to rotate to the jacking position when the first telescopic assembly 3 is in the retracted position. A fixed seat 10 is provided on the base plate 2, and the ends of the first telescopic member 301 and the second telescopic assembly 4 are fixedly provided on the fixed seat 10. The unlocking rocker 5 is provided with an inclined surface 501 extending upward, and the locking rod 6 is moved by the inclined surface 501.

[0044] The second telescopic assembly 4 is a gas spring, which plays a certain buffering role. When the rolling member 303 pushes the unlocking rocker 5 to switch to the avoidance state, the second telescopic assembly 4 will also rotate and stretch with the lower end of the unlocking rocker 5. When the rolling member 303 is retracted and the unlocking rocker 5 is switched to the unlocked state, the second telescopic assembly 4 rebounds and pulls the unlocking rocker 5, causing the upper end of the unlocking rocker 5 to rotate upward and abut against the locking rod 6. The locking rod 6 slides on the inclined surface 501 and drives the locking rod 6 to push upward to complete the unlocking action.

[0045] It also includes a telescopic detection member 14, which is connected to the unlocking rocker 5 and is used to detect the rotation position of the unlocking rocker 5, so that the second telescopic member 403 will not be extended or retracted by a large amount when unlocking, ensuring that the unlocking rocker 5 will not deviate from the locking rod 6 to complete the unlocking action.

[0046] The unlocking rocker arm 5 is rotatably connected to the base plate 2 through the mounting base 9. A first sensor detection component 13 is provided below the mounting base 9. The first sensor detection component 13 is used to be triggered when the unlocking rocker arm 5 is rotated to the avoidance position. It also includes a second sensor detection component 15. The second sensor detection component 15 is used to be triggered when the locking rod 6 is in the locked position.

[0047] like Figures 5 to 12 As shown, a battery swap device includes a vehicle body 16 for carrying a battery pack 1. The vehicle body 16 is provided with a battery pack unlocking mechanism. The battery pack unlocking mechanism cooperates with a locking assembly installed on the vehicle body 16 to unlock the battery pack 1. The locking assembly in this embodiment can refer to the "locking device" disclosed in the Chinese patent application with publication number CN106427514A. Specifically, as Figure 5 As shown, the locking assembly includes a locking rod 6, at least one locking tongue 7, and at least one lock base 8. Specifically, there are three locking tongues 7 and three lock bases 8, and the three locking tongues 7 and the three lock bases 8 are arranged in a one-to-one correspondence. The locking tongue 7 is rotatably mounted on the lock base 8. The lock base 8 is provided with a lock slot 801. The lock slot 801 is used for the lock shaft installed on the battery pack 1 to enter. The locking rod 6 drives the locking tongue 7 to rotate under the action of an external force, so that the locking tongue 7 can rotate relative to the lock base 8 to change between an unlocked state and a locked state. When the locking tongue 7 is in the locked state, the locking tongue 7 can prevent the lock shaft from leaving the lock slot 801. Figure 6 As shown, the unlocking rocker 5 cooperates with the locking rod 6 and acts on the locking rod 6 to convert the lock shaft of the battery pack 1 from a locked state to an unlocked state.

[0048] Working principle: When the battery pack is in Figure 7 When the lock state is shown, the unlocking rocker 5 will be as shown in FIG. Figure 9As shown, the lock rod 6 is rotated and moved to the unlocked position, so that the lock rod 6 contacts the inclined surface 501 of the unlocking rocker 5 and acts on the lock rod 6 to push the lock rod 6 upward, thereby causing the lock rod 6 to drive the lock tongue 7 to rotate relative to the lock base 8 and disengage from the lock groove 801, so that the lock shaft of the battery pack is converted from the locked state to the unlocked state. Figure 11 The unlocked state shown is convenient for removing the depleted battery pack 1; when the battery replacement equipment is needed to store a new battery in the vehicle, the first telescopic part 301 drives the telescopic part A302 forward, causing the unlocking rocker 5 to rotate a certain angle, so that the head of the unlocking rocker 5 droops to avoid the locking rod 6 of the locking assembly.

[0049] like Figure 13 As shown, the battery swap device also includes a side shift mechanism. When unlocking, it is achieved by lifting the battery swap vehicle on the lifting platform, cooperating with the unlocking mechanism and side shift mechanism of the battery swap device. Specifically, the battery swap battery pack unlocking method includes the following steps:

[0050] S1. The lifting platform descends to the battery access level, and the vehicle and battery pack 1 descend onto the battery swapping device. The card block of the battery pack 1 then falls into the U-shaped movable card slot 17 of the battery swapping device, and the battery pack 1 lands on the conveyor belt 18 of the side shift mechanism of the battery swapping device. The unlocking lever 5 is pressed down by the locking lever 6 of the locking mechanism of the battery pack 1, and the telescopic detection member 14 provides feedback that the unlocking lever 5 has been pressed down.

[0051] S2. The conveyor belt 18 of the side shift mechanism moves the battery pack 1 in the locking direction of the locking mechanism via the U-shaped movable slot 17 (this action is referred to as unlocking), releasing the locked state of the locking mechanism. The unlocking lever 5, which was pressed downward and is hingedly connected to the second telescopic assembly 4, automatically springs up, pushing open the locking rod 6 of the vehicle locking mechanism. The telescopic detection member 14 detects whether the unlocking lever 5 has been properly springed up. If the unlocking lever 5 has not been properly springed up, the secondary unlocking process begins.

[0052] S3. After the unlocking lever 5 bounces up, the telescopic detection member 14 will have a signal change, indicating that the unlocking is successful. After that, the side shift mechanism drives the conveyor belt 18 to move the battery pack 1 out of the lock slot 801 of the locking mechanism;

[0053] S4. The lifting platform rises to the detection layer, and the battery swapping device detects whether the battery pack 1 falls normally on the battery swapping device. When the battery pack 1 is detected to fall on the battery swapping device, the lifting platform rises to a safe height and completes the unlocking process;

[0054] S5. When entering the secondary unlocking process, considering that the vehicle's locking mechanism may be blocked by foreign objects during driving, causing it to fail to unlock normally, the side shift mechanism will perform three "unlocking actions". Each time the "unlocking action" is performed, the telescopic detection member 14 will determine the state of the unlocking rocker 5 to determine whether it has been successfully unlocked.

[0055] S6. When the state of the telescopic detection member 14 changes, that is, the unlocking rocker 5 pops up, the unlocking is completed; after three times, if the state of the telescopic detection member 14 still does not change, it is determined that the unlocking has failed and an alarm is issued.

[0056] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A battery pack unlocking mechanism, characterized in that: include: bottom plate (2); Unlocking the rocker (5), the middle portion of which is rotatably connected to the base plate (2); The unlocking drive assembly comprises a first telescopic assembly (3) and a second telescopic assembly (4), wherein the first telescopic assembly (3) abuts against the unlocking rocker (5), and the second telescopic assembly (4) is rotatably connected to the bottom of the unlocking rocker (5); the first telescopic assembly (3) is used to push the unlocking rocker (5) to rotate to a avoiding position for avoiding the locking rod (6), and the second telescopic assembly (4) is used to pull the unlocking rocker (5) to rotate toward a lifting position for lifting the locking rod (6).

2. A battery pack unlocking mechanism according to claim 1, characterized in that: The unlocking rocker (5) is provided with an inclined surface (501) extending upward, and the locking rod (6) is moved by the inclined surface (501).

3. The battery pack unlocking mechanism according to claim 2, characterized in that: The first telescopic assembly (3) is used to push the unlocking rocker (5) to rotate toward the avoidance position; the second telescopic assembly (4) is used to drive the unlocking rocker (5) to rotate to the jacking position when the first telescopic assembly (3) is in the retracted position.

4. The battery pack unlocking mechanism according to claim 3, characterized in that: The first telescopic assembly (3) comprises a first telescopic member (301), the first telescopic member (301) is connected to a telescopic member A (302), the end of the telescopic member A (302) is rotatably connected to a rolling member (303), and the rolling member (303) corresponds to the lower end of the middle portion of the unlocking rocker (5).

5. The battery pack unlocking mechanism according to claim 4, characterized in that: A fixing seat (10) is provided on the bottom plate (2), and the ends of the first telescopic member (301) and the second telescopic assembly (4) are fixedly provided on the fixing seat (10).

6. The battery pack unlocking mechanism according to claim 5, characterized in that: The telescopic member A (302) is connected to a sliding member (11), a track (12) is provided on the bottom plate (2), and the sliding member (11) is slidably connected to the track (12).

7. The battery pack unlocking mechanism according to claim 6, characterized in that: It also includes a telescopic detection member (14), which is connected to the unlocking rocker (5) and is used to detect the rotation position of the unlocking rocker (5).

8. The battery pack unlocking mechanism according to claim 7, characterized in that: The unlocking rocker (5) is rotatably connected to the base plate (2) via a mounting base (9); a first sensor detection assembly (13) is provided below the mounting base (9); the first sensor detection assembly (13) is used to be triggered when the unlocking rocker (5) is rotated to the avoidance position; and a second sensor detection assembly (15) is also provided; the second sensor detection assembly (15) is used to be triggered when the locking rod (6) is in the locking position.

9. A battery replacement device, characterized in that: The invention comprises a vehicle body (16) for carrying a battery pack, wherein the vehicle body (16) is provided with a battery pack unlocking mechanism according to any one of claims 1 to 8.

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