Battery compartment lock

Abstract

The utility model discloses a battery compartment lock provides the elasticity through the lock to realize the battery and is ejected, and the user experience is optimized. The battery compartment lock includes the lock shell, and installs the electric drive component, the lock tongue, the lever, the first top rod, the first spring and the torsional spring in the lock shell, the lock tongue rotation is connected in the lock shell, and one end is provided with the lock hook of one end surface of the lock shell, one end of the lever is fixedly connected with the lock tongue, and the other end is driven to swing by the electric drive component, the first top rod is telescopic cooperation on the end face of the lock shell on the same side of the lock tongue, the first spring is used for driving the first top rod and is stretched out the end face of the lock shell, and the torsional spring is used for driving the lock tongue and resets to the lock direction.

Description

Technical Field

[0001] This utility model belongs to the field of battery lock technology, specifically a battery compartment lock for battery charging cabinets. It can lock the battery after the movable battery is inserted into the compartment, and combines electronic control unlocking, battery status sensing, lock status sensing, battery ejection mechanism, emergency unlocking and other technologies. Background Technology

[0002] Battery charging cabinets are standardized charging devices designed specifically for rechargeable batteries (such as lithium batteries, lead-acid batteries, nickel-metal hydride batteries, etc.). Their core function is to enable simultaneous charging, storage, and maintenance of multiple batteries through safety control and intelligent charging and discharging management. They are widely used in industrial manufacturing, warehousing and logistics, new energy, medical equipment, power tools and other fields.

[0003] Most current battery charging cabinets lack independent battery status sensing in their battery compartment locks, requiring additional sensors to detect whether the batteries are properly locked. Because removable batteries draw a large current during charging, the connectors between the battery and the charging cabinet are also relatively large, resulting in strong clamping force. When the charging cabinet is unlocked and the user wants to remove the battery, they must manually overcome the clamping force of the connectors and the battery's own weight, leading to inconvenience and a poor user experience. Utility Model Content

[0004] The main purpose of this utility model is to provide a battery compartment lock that solves the problems existing in the prior art. The lock provides elastic force to pop out the battery, thus optimizing the user experience.

[0005] To achieve the above objectives, the solution of this utility model is: A battery compartment lock includes a lock housing, and an electric drive assembly, a bolt, a lever, a first push rod, a first spring, and a torsion spring installed within the lock housing. The bolt is rotatably connected within the lock housing, and one end of the bolt has a locking hook extending through one end face of the lock housing. One end of the lever is fixedly connected to the bolt, and the other end is driven by the electric drive assembly to swing. The first push rod extends and retracts on the end face of the lock housing on the same side as the bolt. The first spring drives the first push rod to extend out of the end face of the lock housing. The torsion spring drives the bolt to return to its original position in the locking direction.

[0006] The electric drive assembly includes a motor, a gear, and a retaining pin; the motor is connected to the gear in a transmission manner; the other end of the lever is opposite to the gear; the retaining pin is mounted on the end face of the gear and pushes the lever after the motor is started to drive the bolt to unlock.

[0007] Preferably, the output end of the motor is provided with a worm gear, which meshes with the teeth on the circumferential surface of the gear.

[0008] Preferably, the end face of the lock hook is provided with a locking tongue bevel.

[0009] Preferably, the other end of the lever extends beyond the other end face of the lock housing.

[0010] Preferably, the first push rod is provided on the upper and lower sides of the locking tongue.

[0011] Preferably, a push plate is connected between the ends of the first push rod; the push plate is provided with a through hole for the locking hook to move through.

[0012] Preferably, the battery compartment lock further includes a second push rod that telescopically engages with the end face of the lock housing, a first limit switch disposed within the lock housing for detecting the second push rod, and a second spring for ejecting the second push rod.

[0013] Preferably, the battery compartment lock further includes a second limit switch and a third limit switch disposed inside the lock housing and opposite to the gear, wherein the second limit switch and the third limit switch are movably engaged with a sensing part preset on the gear.

[0014] After adopting the above technical solution, the present invention has the following technical effects: (1) This utility model forms a power chain between the motor and the lock tongue through gears, levers and fixing pins, which is motor → gear → fixing pin → lever → lock tongue. It also has a first spring that can store energy. When the motor receives the unlocking signal from the central control of the charging cabinet and starts, it can swing the lock tongue in conjunction, so that the lock hook of the lock tongue disengages from the lock buckle at the bottom of the battery to complete the unlocking. At the same time as unlocking, the elastic potential energy of the first spring is released. The first spring pushes the first push rod out of the lock shell, thereby popping the battery out a certain distance, completing the decoupling of the battery from the connector of the charging cabinet. The user only needs to overcome the weight of the battery to take out the battery, which is more labor-saving and convenient, and effectively improves the user experience.

[0015] (2) The lock tongue, lever and gear and the fixing pin on it are not rigidly connected. Only during the unlocking process will the fixing pin exert force on the lever to drive the lever to swing the lock tongue. During the locking process, when the battery is pressed into the battery compartment, the lock tongue can be pushed open to achieve automatic locking. After the lock tongue is pushed open, it will automatically reset under the action of the torsion spring. The entire locking process does not require driving the motor again.

[0016] (3) Within the acceptable range, by adjusting the size of the first push rod and the elasticity of the first spring, it can be adapted to different usage scenarios and needs, and has good flexibility. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall shape of the lock according to a specific embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram showing the locked state of the lock tongue and the battery tail latch in a specific embodiment of this utility model.

[0019] Figure 3 This is a perspective view of the locked state of a specific embodiment of the present invention.

[0020] Figure 4 This is a front view of the locked state in a specific embodiment of the present utility model.

[0021] Figure 5 This is a perspective view of the unlocked state of a specific embodiment of the present utility model.

[0022] Figure 6 This is a front view of the unlocked state according to a specific embodiment of the present utility model.

[0023] Figure 7 This is a schematic diagram of the locked state in actual application of this utility model.

[0024] Figure 8 This is a schematic diagram of the unlocking state in actual application of this utility model.

[0025] Explanation of icon numbers: 101-Lock housing; 102-Motor; 1021-Worm gear; 103-Gear; 104-Lock tongue; 1041-Lock hook; 1042-Lock tongue bevel; 105-Lever; 106-Fixing pin; 107-First push rod; 108-First spring; 109-Torsion spring; 110-Push plate; 1101-Through hole; 111-Second push rod; 112-First limit switch; 113-Second spring; 114-Second limit switch; 200-Battery; 201-Lock; 300-Charging cabinet central control; 400-Slide rail. Detailed Implementation

[0026] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0027] refer to Figures 1 to 6 As shown, this utility model discloses a battery compartment lock, including a lock housing 101, and a motor 102, a gear 103, a lock tongue 104, a lever 105, a fixing pin 106, a first push rod 107, a first spring 108 and a torsion spring 109 installed in the lock housing 101. Lock housing 101 is usually fixed and installed inside the charging cabinet by means of screws or other methods; Motor 102 receives signals from the central control unit 300 of the charging cabinet to start and stop, and is connected to gear 103 for transmission. The latch 104 is rotatably connected inside the lock housing 101, and one end of the latch 104 is provided with a latch hook 1041 that protrudes from one end face of the lock housing 101 and engages with the latch 201 at the bottom of the battery 200. One end of the lever 105 is fixedly connected to the locking tongue 104, and the other end is opposite to the gear 103; The fixing pin 106 is installed on the end face of the gear 103 by means of riveting or other methods, and pushes the lever 105 after the motor 102 is started to drive the locking tongue 104 to unlock; The first push rod 107 is telescopically engaged on the end face of the lock housing 101 on the same side as the latch 104; The first spring 108 is disposed between the first push rod 107 and the lock housing 101, and is used to drive the first push rod 107 to extend out of the end face of the lock housing 101; A torsion spring 109 is disposed between the bolt 104 and the lock housing 101, and is used to drive the bolt 104 to reset in the upward locking direction.

[0028] Among them, the motor 102, gear 103 and fixing pin 106 constitute the electric drive assembly of the drive lever 105, which can be driven by other forms of mechanical structure.

[0029] See above for details. Figure 7 , Figure 8This utility model forms a power chain between the motor 102 and the latch 104 via a gear 103, a lever 105, and a fixing pin 106, creating a motor 102 → gear 103 → fixing pin 106 → lever 105 → latch 104. It also features a first spring 108 capable of storing energy. When the motor 102 receives an unlocking signal from the charging cabinet's central control unit 300 and starts, it can move the latch 104 in conjunction, causing the latch hook 1041 to disengage from the latch 201 at the bottom of the battery 200 to unlock. Simultaneously, the elastic potential energy of the first spring 108 is released, pushing the first push rod 107 out of the lock housing 101, thus ejecting the battery 200 a certain distance along the charging cabinet's slide rail 400. This decouples the battery 200 from the charging cabinet connector. Users only need to overcome the weight of the battery 200 to remove it, making the process more effortless and convenient, effectively improving the user experience. Meanwhile, the locking tongue 104, lever 105, gear 103, and its fixing pin 106 are not rigidly connected. Only during unlocking will the fixing pin 106 exert force on the lever 105 to drive the lever 105 to swing the locking tongue 104. During locking, when the battery 200 is pressed into the battery compartment along the slide rail 400, it can push the locking tongue 104 open to achieve automatic locking. After the locking tongue 104 is pushed open, it will automatically reset under the action of the torsion spring 109. The entire locking process does not require driving the motor 102 again. In addition, within the acceptable range, by adjusting the size of the first push rod 107 and the elasticity of the first spring 108, it can be adapted to different usage scenarios and needs, and has good flexibility.

[0030] The following are specific embodiments of the present invention.

[0031] The output end of the aforementioned motor 102 is equipped with a worm gear 1021, which meshes with the teeth on the circumferential surface of the gear 103 to achieve a transmission connection between the motor 102 and the gear 103, enabling the motor 102 to drive the gear 103 to rotate in the corresponding direction when rotating forward or backward. Furthermore, the motor 102, worm gear 1021, gear 103, lever 105, and locking tongue 104 constitute a multi-stage reduction gear combination, which can achieve a large transmission ratio, thereby overcoming significant resistance to unlock the device.

[0032] The end face of the aforementioned lock hook 1041 is provided with a lock tongue bevel 1042. When the battery 200 is pressed into the battery compartment, the lock tongue bevel 1042 is contacted by the lock buckle 201 to open the lock tongue 104, thereby realizing automatic locking without motor drive.

[0033] The other end of the lever 105 extends beyond the other end face of the lock housing 101. This design allows for emergency unlocking by manually pressing down the lever 105 when the lock is engaged.

[0034] The aforementioned first push rod 107 is provided on both the upper and lower sides of the latch 104. Through the double push rod design, the battery 200 experiences more even and stable force when ejecting, avoiding jamming or tilting due to uneven force on one side, further improving the smoothness and reliability of the battery 200 ejection. Moreover, the two first push rods 107 work together to better accommodate batteries 200 of different specifications and weights, enhancing the versatility and adaptability of the battery compartment lock. Furthermore, the combination of the lock's transmission structure (the power chain from the motor 102 to the latch 104) and the double push rod springs can withstand greater unlocking resistance.

[0035] Furthermore, a push plate 110 is connected between the ends of the first push rod 107; the push plate 110 is provided with a through hole 1101 for the locking hook 1041 to pass through. By providing the push rod 110, the two first push rods 107 can move synchronously when the battery 200 is ejected, ensuring that the pushing force is evenly applied to the bottom of the battery 200, and avoiding the battery 200 from tilting or jamming due to inconsistent push rod movements. The through hole 1101 design of the push plate 110 not only provides room for the locking hook 1041 to move, but also enhances the overall structural strength through the plate structure, making the push plate 110 less prone to deformation during the ejection of the battery 200.

[0036] This utility model also includes a second push rod 111 telescopically coupled to the end face of the lock housing 101, a first limit switch 112 disposed inside the lock housing 101 for detecting the second push rod 111, and a second spring 113 for ejecting the second push rod 111. By setting the second push rod 111 to telescopically move in the same direction as the first push rod 107, when the battery 200 is ejected, the second push rod 111 is simultaneously ejected under the action of the second spring 113, causing the signal of the first limit switch 112 to switch. The charging cabinet central control 300 can use this signal to switch and sense whether "the battery has been ejected"; and when the battery is pressed into the battery compartment, the signal switches again, and the charging cabinet central control 300 can use this signal to switch and sense whether "the battery has been pressed into place and locked". Thus, this utility model has a battery status sensing function.

[0037] This utility model also includes a second limit switch 114 and a third limit switch 115 disposed inside the lock housing 101 and opposite to the gear 103. The second limit switch 114 and the third limit switch 115 are in active cooperation with the sensing part (such as the protrusion) preset on the gear 103, and the "gear 103 rotates to the correct position" is sensed by signal switching, which respectively correspond to the functions of "unlocking position detection" and "locking position detection".

[0038] In summary, this invention combines battery status sensing, lock status sensing, and emergency unlocking functions, making its functionality richer and more complete.

[0039] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A battery compartment lock, characterized in that: Includes a lock housing, and an electric drive assembly, a bolt, a lever, a first push rod, a first spring, and a torsion spring installed within the lock housing; The latch is rotatably connected inside the lock housing, and one end of the latch is provided with a latch hook that protrudes through one end face of the lock housing. One end of the lever is fixedly connected to the locking tongue, and the other end is driven by the electric drive assembly to swing. The first push rod extends and retracts on the same side of the bolt on the end face of the lock housing; The first spring is used to drive the first push rod to extend out of the end face of the lock housing; The torsion spring is used to drive the locking tongue to return to its original position in the upward locking direction.

2. The battery compartment lock as described in claim 1, characterized in that: The electric drive assembly includes a motor, a gear, and a retaining pin; the motor is connected to the gear in a transmission manner; the other end of the lever is opposite to the gear; the retaining pin is mounted on the end face of the gear and pushes the lever after the motor is started to drive the bolt to unlock.

3. The battery compartment lock as described in claim 2, characterized in that: The motor has a worm gear at its output end, and the worm gear meshes with the teeth on the circumferential surface of the gear.

4. The battery compartment lock as described in claim 2, characterized in that: The end face of the lock hook is provided with a locking tongue bevel.

5. The battery compartment lock as described in claim 2, characterized in that: The other end of the lever extends out of the other end face of the lock housing.

6. The battery compartment lock as described in claim 2, characterized in that: The first push rod is provided on the upper and lower sides of the locking tongue respectively.

7. The battery compartment lock as described in claim 6, characterized in that: A push plate is connected between the ends of the first push rod; the push plate is provided with a through hole for the locking hook to move through.

8. The battery compartment lock as described in claim 2, characterized in that: It also includes a second push rod that telescopically engages with the end face of the lock housing, a first limit switch disposed inside the lock housing for detecting the second push rod, and a second spring for ejecting the second push rod.

9. The battery compartment lock as described in claim 2, characterized in that: It also includes a second limit switch and a third limit switch disposed inside the lock housing and opposite to the gear, the second limit switch and the third limit switch being movablely engaged with a sensing part preset on the gear.

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