Electric cart provided with external battery and convenient and quick to detach
By setting slots at the bottom of the electric cart, external charging of the battery is solved, and the safety hazards of the battery are improved when charging the inside of the cart is improved.
Patent Information
- Application Number
- CN202420966997.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The batteries of existing electric carts are installed inside the carts, which can easily lead to untimely heat dissipation or failure during charging, which poses a major safety hazard, especially when there are many carts in the hotel and are unattended.
Design an electric cart with easy and quick disassembly external battery. By setting a slot at the bottom of the cart, plug the battery into the slot. When charging is required, it will be pulled out separately and placed in a fixed position to charge. After charging, it will be completed. Then insert it into the slot to use it to avoid the safety hazards of charging the battery in the closed container.
The external charging of the battery solves the safety hazards of the battery when charging the cart inside, improves the safety and reliability of the electric cart, and avoids the occurrence of fires.
Smart Images
Figure CN222179605U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an electric cart, in particular to an electric cart with an external battery that can be quickly disassembled. Background Art
[0002] Hotels generally need carts to transport and clean items, such as guest room carts, flatbed carts, cleaning carts and other carts. Before guests check into hotel rooms, service staff generally need to use carts to transport accommodation supplies to the guest rooms and place them in the rooms. According to the needs of the guests after check-in, carts will also be used to deliver meals and other necessary items. After the guests check in and leave, service staff need to use carts to clean some items.
[0003] The existing electric cart batteries are installed inside the carts and are generally not removed later. When charging, they are directly connected to the power supply through the power cord. Due to the large number of hotel carts, there is no one to supervise the charging. The batteries are in a relatively closed cavity inside the cart. Once the heat dissipation is not timely or the charging fails, it is easy to cause a fire, posing a major safety hazard.
[0004] In addition, regarding the structure of the electric cart, the applicant has previously applied for and obtained a utility model patent, application number 201820391515.2, entitled "An electric cart". It can use electricity to drive the cart, greatly improving the work efficiency of service personnel and reducing the labor intensity of service personnel. At the same time, it can control the direction of the electric-driven cart according to the direction of the person pushing it. Utility Model Content
[0005] In view of the above problems, the utility model aims to provide an electric cart with an external battery that is easy to remove quickly. A slot is provided at the bottom of the cart, and the battery is plugged into the slot for use. When charging is needed, the battery is directly pulled out and placed in a fixed position for charging. After the battery is charged, it is inserted into the slot for normal use.
[0006] The technical solution of the utility model is an electric cart with an external battery that is easy to remove quickly, comprising a base, rollers are arranged at four corner points of the bottom surface of the base, a storage table is arranged on the base, armrests are arranged at the front and rear ends of the top of the storage table, touch sensors are arranged in the armrests, a motor is arranged at the rear of the base, and the motor is connected to the left and right rollers at the rear through a transmission shaft; an integrated control module is arranged in the base, a plug board with slots is arranged on the bottom surface of the base, and the battery is inserted into the plug board through the slots and fixed; after the power is connected, both hands touch the armrests to transmit signals to the integrated control module through the touch sensor, and the integrated control module controls the motor to drive the rollers forward through the transmission shaft, and the cart stops when there is no signal from the touch sensor after the hands leave the armrests.
[0007] Preferably, the armrest includes a left armrest and a right armrest, the rollers at the rear of the base include a left roller and a right roller, touch sensors are arranged in the left armrest and the right armrest, fixing frames are arranged on the left and right sides of the rear of the base, encoders and second gears are arranged in the fixing frames, first gears are respectively connected to the inner sides of the left roller and the right roller, the first gear and the second gear are meshed with each other, when turning, the left armrest or the right armrest is applied with force to drive the second gear to rotate through the first gear, so that the encoder feeds back the second gear rotation direction signal to the integrated control module, and the integrated control module controls the direction of rotation of the motor, thereby controlling the moving direction of the vehicle.
[0008] Preferably, the two rollers on the bottom surface of the front side of the base are connected to the bottom surface of the base through a hinge frame.
[0009] Preferably, the plug board is a rectangular cavity structure with an opening on one side, and the battery is inserted and engaged from the opening side.
[0010] Preferably, the storage table is a multi-layer structure.
[0011] Preferably, a power switch, a charging port and a power display screen are provided on one end of the base and on the side corresponding to the battery; the integrated control module includes a core controller, a control signal module, a power supply system module, a motor dual feedback drive module and a pre-expansion function module, and the core controller is respectively connected to the control signal module, the power supply system module, the motor dual feedback drive module and the pre-expansion function module; the control signal module includes a touch sensor, a brake switch, a power switch and other control points, the power supply system module includes a battery, voltage detection, a protection circuit and a charging circuit, the motor dual feedback drive module includes photoelectric isolation (high-speed optocoupler), MOSFET motor full-bridge drive, motor, current feedback, speed feedback and encoder, and the pre-expansion function module includes Bluetooth communication, wifi communication and I²C circuit.
[0012] Preferably, shaft sleeves are provided at both ends of the transmission shaft, the two shaft sleeves are respectively connected to the left roller and the right roller, and the shaft sleeves are connected to the first gear.
[0013] The utility model inserts the storage battery into the slot of the plug board for use. When charging is needed, the storage battery is directly pulled out separately and placed in a fixed position for charging. After the storage battery is charged, it is inserted into the slot for normal use, which can avoid the safety hazard when the storage battery is charged in a closed cavity. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;
[0016] Figure 3 This is a schematic diagram of the connection structure between the base and the roller in the utility model;
[0017] Figure 4 for Figure 3 Schematic diagram of the decomposition structure;
[0018] Among them: 1—base; 2—roller; 21—left roller; 22—right roller; 3—storage table; 4—armrest; 41—left armrest; 42—right armrest; 6—motor; 7—drive shaft; 9—plug-in board; 10—battery; 11—fixed frame; 12—encoder; 13—second gear; 14—first gear; 15—articulated frame. DETAILED DESCRIPTION
[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0020] like Figures 1 to 4 As shown, the utility model provides an electric cart with an external battery that is easy to remove quickly, comprising a base 1, rollers 2 are arranged at four corner points on the bottom surface of the base 1, a storage table 3 is arranged on the base 1, armrests 4 are arranged on the front and rear ends of the top of the storage table 3, a touch sensor is arranged in the armrest 4, a motor 6 is arranged at the rear of the base 1, and the motor 6 is connected to the left and right rollers 2 at the rear through a transmission shaft 7; an integrated control module is arranged in the base 1, a plug board 9 with a slot is arranged on the bottom surface of the base 1, and the battery 10 is inserted into the plug board 9 through the slot and fixed; after the power is connected, both hands touch the armrest 4 to transmit the signal to the integrated control module through the touch sensor, and the integrated control module controls the motor 6 to drive the roller 2 forward through the transmission shaft 7, and the cart stops when there is no signal from the touch sensor after the hand leaves the armrest 4.
[0021] In the above scheme, the armrest 4 includes a left armrest 41 and a right armrest 42, the roller 2 at the rear of the base 1 includes a left roller 21 and a right roller 22, and touch sensors are arranged in the left armrest 41 and the right armrest 42. Fixed frames 11 are arranged on both the left and right sides of the rear of the base 1, and encoders 12 and second gears 13 are arranged in the fixed frames. The inner sides of the left roller 21 and the right roller 22 are respectively connected to the first gear 14, and the first gear 14 and the second gear 13 are meshed. When turning, the left armrest 41 or the right armrest 42 is forced to rotate through the first gear 14 to drive the second gear 13 to rotate, so that the encoder 12 feeds back the rotation direction signal of the second gear 13 to the integrated control module, and the integrated control module controls the rotation direction of the motor 6, thereby controlling the moving direction of the car.
[0022] In addition, the two rollers 2 on the front bottom surface of the base 1 are connected to the bottom surface of the base 1 through a hinge frame 15.
[0023] Specifically, the plug board 9 is a rectangular cavity structure with one side open, and the battery 10 is inserted and engaged from the open side.
[0024] Furthermore, the storage table 3 is a multi-layer structure.
[0025] In addition, a power switch, a charging port and a power display screen are provided on one end of the base 1 and on the side corresponding to the battery 10; the integrated control module includes a core controller, a control signal module, a power supply system module, a motor dual feedback drive module and a pre-expansion function module, and the core controller is respectively connected to the control signal module, the power supply system module, the motor dual feedback drive module and the pre-expansion function module; the control signal module includes a touch sensor, a brake switch, a power switch and other control points, the power supply system module includes a battery 10, a voltage detection, a protection circuit and a charging circuit, the motor dual feedback drive module includes photoelectric isolation (high-speed optocoupler), MOSFET motor full-bridge drive, motor, current feedback, speed feedback and encoder, and the pre-expansion function module includes Bluetooth communication, wifi communication and I²C circuit.
[0026] Furthermore, shaft sleeves are provided at both ends of the transmission shaft 7 , and the two shaft sleeves are respectively connected to the left roller 21 and the right roller 22 , and the shaft sleeves are connected to the first gear 14 .
[0027] When in use, the utility model controls the start of the control system by sensing the user's hands holding the left and right armrests through the touch sensor. The touch sensor senses the hand holding and feeds back the information to the integrated control module. The integrated control module controls the encoder 5 to work, which is more intelligent and safe. At the beginning, the cart is pushed slightly by manpower, so that the roller 2 will drive the connected first gear 14 to rotate, and the first gear 14 will drive the second gear 13 to rotate, so that the encoder 12 processes the information of the rotation direction of the second gear 13 and feeds it back to the integrated control module. The integrated control module controls the rotation direction of the motor 6, thereby controlling the movement of the car, improving the working efficiency of the cart and the stability of the startup implementation.
[0028] When charging, all the batteries 10 to be charged on the carts are removed and placed in the same place for charging. Each battery 10 has a corresponding remaining power indicator. When charging, the batteries 10 are exposed to the air alone and can be charged safely. After charging, the batteries 10 can be assembled back.
[0029] The above description is only a preferred implementation mode of the utility model, and does not impose any form of limitation on the utility model. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the utility model still falls within the scope of the technical solution of the utility model.
Claims
1. An electric trolley with an external battery that can be quickly removed, comprising a base (1), wherein rollers (2) are arranged at four corner points of the bottom surface of the base (1), and a storage table (3) is arranged on the base (1), characterized in that: The top of the storage table (3) is provided with handrails (4) at the front and rear ends, and a touch sensor is provided in the handrails (4). A motor (6) is provided at the rear of the base (1), and the motor (6) is connected to the two left and right rollers (2) at the rear through a transmission shaft (7); an integrated control module is provided in the base (1), and a plug board (9) with a slot is provided on the bottom surface of the base (1), and a battery (10) is inserted into the plug board (9) through the slot and fixed; after the power supply is connected, the handrails (4) are touched by both hands to transmit a signal to the integrated control module through the touch sensor, and the integrated control module controls the motor (6) to drive the rollers (2) forward through the transmission shaft (7), and after the hand leaves the handrail (4), the touch sensor has no signal and the cart stops.
2. The electric cart with an external battery and quick-release according to claim 1, characterized in that: The armrest (4) comprises a left armrest (41) and a right armrest (42); the roller (2) at the rear of the base (1) comprises a left roller (21) and a right roller (22); touch sensors are arranged in the left armrest (41) and the right armrest (42); fixed frames (11) are arranged on both left and right sides of the rear of the base (1); encoders (12) and a second gear (13) are arranged in the fixed frames; first gears (14) are connected to the inner sides of the left roller (21) and the right roller (22) respectively; the first gear (14) and the second gear (13) are meshed; when turning, the left armrest (41) or the right armrest (42) is applied with force to drive the second gear (13) to rotate through the first gear (14), so that the encoder (12) feeds back a rotation direction signal of the second gear (13) to the integrated control module; the integrated control module controls the rotation direction of the motor (6), thereby controlling the moving direction of the vehicle.
3. The electric cart with an external battery and quick-release according to claim 1, characterized in that: The two rollers (2) on the front bottom surface of the base (1) are connected to the bottom surface of the base (1) via a hinge frame (15).
4. The electric cart with an external battery and quick-release according to claim 1, characterized in that: The plug board (9) is a rectangular cavity structure with an opening on one side, and the storage battery (10) is inserted and engaged from the opening side.
5. The electric cart with external battery and quick-release according to claim 1, characterized in that: The storage platform (3) is a multi-layer structure.
6. The electric cart with external battery and quick-release according to claim 2, characterized in that: Both ends of the transmission shaft (7) are provided with shaft sleeves, the two shaft sleeves are respectively connected to the left roller (21) and the right roller (22), and the shaft sleeves are connected to the first gear (14).