CN102963339B - Battery box assistance mechanism and battery box replacing device with same - Google Patents

Abstract

The invention relates to the field of electrical equipment. The battery box booster mechanism includes an unlocking claw, a bracket, a lever arm, a support rod, a support piece, and a limit lever. The support piece has a ratchet structure, and the bottom end of the lever arm is hinged by a pin. There is a pawl, and the pawl is supported in the ratchet. A bracket is arranged parallel to one side of the lever arm. There is a support rod, one end of the support rod is fixedly connected to the bracket, and the other end is hinged on the lever arm through a pin shaft, the unlocking claw is arranged on the bracket, and a slide block is arranged between the unlocking claw and the bracket, and the unlocking claw The slider can slide longitudinally on the bracket; the booster mechanism has a lever booster structure with an adjustable force point, so that the battery box replacement equipment with the booster mechanism can reduce the pulling force of the operator on the battery box during the replacement process, Reduce the requirement for operator strength.

Description

Battery box booster mechanism and battery box replacement equipment with the booster mechanism

technical field

The invention relates to the field of electrical equipment, in particular to a battery box booster mechanism and battery box replacement equipment with the booster mechanism.

Background technique

Electric vehicles use power batteries as their power source. By charging and discharging the power batteries, the battery life of electric vehicles is realized. Due to its advantages of cleanness, environmental protection, and economical operation, it has gradually been paid attention to. However, the current specific energy density and specific power density of power batteries are small, which affects the cruising range of electric vehicles. In order to improve the storage energy and output power of power batteries, it is necessary to connect several single batteries in series to obtain a high-voltage DC power supply of several hundred volts. It will cause the volume and weight of the battery box to be too large, which will bring inconvenience to the handling, replacement and storage of the battery box. In view of the disadvantages of large volume and weight of the battery box, in order to realize the continuous replacement of multiple vehicle battery boxes, a relatively large site space and some fully automatic or semi-automatic battery replacement equipment are required to complete the replacement task of the electric vehicle battery box. Will increase the investment funds for the construction of charging and swapping stations. The Chinese Utility Model Patent No. 201120152746.6 provides a battery box clamp and battery replacement equipment with the clamp. The battery box clamp includes a clamp body and a power device connected to the clamp body. The power device such as the power device controls the battery box fixture to move up and down to realize the replacement of the battery box. However, due to the high automation cost of the power device of the battery box fixture, it is not suitable for small charging and swapping stations that do not have automatic replacement equipment installed, and cannot rely solely on The operator manually completes the grabbing and replacement of the battery.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a battery box power-assisted mechanism that only relies on the operator to manually grasp and replace the battery and a battery box replacement device with the power-assisted mechanism. The power-assisted mechanism has an adjustable force point The lever booster structure enables the battery box replacement equipment with the booster mechanism to reduce the pulling force of the operator on the battery box during the replacement process, reducing the requirement on the strength of the operator.

The specific solution of the present invention is: the power-assisted mechanism of the battery box, including the unlocking pawl, bracket, lever arm, support rod, support member, and limit rod, the support member has a ratchet structure, and the bottom end of the lever arm is hinged by a pin There is a pawl, the pawl is supported in the ratchet, a bracket is provided parallel to one side of the lever arm, a limit rod is provided between the bracket and the lever arm, and the limit rod has a telescopic structure, A support rod is provided below the limit rod, one end of the support rod is fixedly connected to the bracket, the other end is hinged on the lever arm through a pin, and a return spring is provided between the bracket and the lever arm, The return spring is placed between the limit rod and the support rod; the unlocking pawl is arranged on the bracket, and a slider is provided between the unlocking pawl and the bracket, and the unlocking pawl can be vertically positioned on the bracket through the slider. slide.

Further, the unlocking pawl is a rod with wedge-shaped blocks vertically downwards at both ends.

Further, the limit rod is composed of two rods hinged by a pin, and the two ends of the limit rod are hinged on the bracket and the lever arm by a pin.

Further, a handle is provided at the top of the lever arm.

Further, the lever arm is provided with a groove at the hinge end with the ratchet.

A battery box replacement device, including a frame, a battery box booster mechanism, a battery box tray, and a conveying roller table composed of rollers, the bottom of the tray is provided with a transverse guide rail, and the tray is slidably connected to the top of the frame through the transverse guide rail , the top of the tray is provided with longitudinal rails, and chute is provided on both sides of the lower part of the bracket of the battery box booster mechanism, and the battery box booster mechanism is arranged on the longitudinal rail through the chute, so that the battery box booster mechanism The track slides on the pallet, and the conveying roller table is arranged on the top of the pallet and on both sides of the battery box booster mechanism.

Further, the surface of the roller is provided with an annular groove.

Further, a lead screw is provided at the bottom of the tray, and a hand wheel is fixedly connected to one end of the lead screw, and the hand wheel controls the sliding of the tray on the frame through the lead screw.

Adopt above-mentioned technical scheme, technical effect of the present invention has:

The booster mechanism of the present invention, the bracket and the slider can make the unlocking hand go up and down, which is convenient for grabbing and releasing the battery box; the lever booster mechanism composed of the lever arm and the support rod can help the operator reduce the load on the battery box proportionally. Forward dragging force, the pawl hinged at the lower part of the lever arm is supported in the ratchet. For battery boxes with different longitudinal positions, the position of the force point between the pawl and the ratchet can be adjusted, so that the lever has the best The labor-saving fulcrum, the limit rod has a telescopic structure, which can make the lever in the best labor-saving position.

In the battery box replacement equipment with the booster mechanism, the rollers can make the battery box roll and slide on the pallet, and there are grooves on the surface of the rollers, which correspond to the strip-shaped protrusions at the bottom of the battery box, so that the battery box When sliding, the protrusions are embedded in the grooves to limit the left and right movement of the battery box. The longitudinal guide rails on the top of the tray ensure the longitudinal movement track of the power-assisted mechanism; Grab and release; fine-tune the screw and handwheel, and slightly adjust the relative position of the battery box and the car battery rack when loading the battery box, so that the battery box can be set opposite to the pallet.

The invention solves the problem of inconvenient replacement of battery boxes with different longitudinal positions in a small space, reduces the pulling force of the battery box during dragging, and realizes complete manual operation. The device of the invention is simple in structure, easy in production and processing, convenient in operation and low in implementation cost, and has good prospects for popularization and application.

Description of drawings

Fig. 1 is a schematic structural view of a booster mechanism provided by the present invention;

Fig. 2 is the front view of the booster mechanism provided by the present invention;

Fig. 3 is a right view of the booster mechanism provided by the present invention;

Fig. 4 is a front view of the pawl of the booster mechanism provided by the present invention in another position;

Fig. 5 is a schematic structural diagram of the battery box replacement device provided by the present invention.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1, 2, 3 and 4, a battery box booster mechanism includes an unlocking claw 1, a bracket 2, a lever arm 4, a support rod 5, a support member 7, and a limit rod 8, and the support member 7 has a ratchet structure, the top of the lever arm 4 is provided with a handle 19, and its bottom end is hinged with a pawl 6 through a pin shaft. In order to achieve the best labor-saving state, there is a groove at the hinge end of the lever arm 4 and the pawl 6, and the groove makes the pawl 6 swing to change the force point, and the pawl 6 is limited. position; one side of the lever arm 4 is parallelly provided with a support 2, and a limit rod 8 is provided between the support 2 and the lever arm 4. The limit rod 8 has a telescopic structure, and the limit rod 8 is preferably two hinged by pin shafts. The two ends are hinged on the bracket 2 and the lever arm 4 through a pin shaft; a support rod 5 is provided below the limit rod 8, and one end of the support rod 5 is fixedly connected to the bracket 2, and the other end is connected to the bracket 2 through The pin shaft is hinged on the lever arm 4, and a return spring 9 is arranged between the bracket 2 and the lever arm 4, and the return spring 9 is located between the limit rod 8 and the support rod 5; A slider 3 is provided between the claw 1 and the bracket 2, and the unlocking claw 1 can slide longitudinally on the bracket 2 through the slider 3. The unlocking claw 1 is preferably a rod with wedge-shaped blocks vertically downwards at both ends.

As shown in Figure 5, a battery box replacement device with the booster mechanism includes a frame, a battery box booster mechanism, a battery box tray 12, and a conveying roller 14 composed of rollers 13. The bottom of the tray 12 is provided with a transverse guide rail 16, The tray 12 is slidably connected to the top of the frame through the horizontal guide rail 16. The top of the tray 12 is provided with a longitudinal rail 15, and there are chute 20 on both sides of the lower part of the bracket 2 of the battery box booster mechanism. On the track 15, the battery box booster mechanism is slid on the pallet 12 along the longitudinal track 15, and the conveying roller track is arranged on the top of the tray 12 and both sides of the battery box booster mechanism, and the rollers 13 in the conveying roller track on one side There is an annular groove on the surface, and the annular groove is set opposite to the protrusion at the bottom of the battery box 10. When the unlocking claw 1 drags the battery box 10, the protrusion is embedded in the annular groove to guide the movement of the battery box 10 and prevent it from shaking The bottom of the tray 12 is provided with a lead screw 17, one end of the lead screw 17 is fixedly connected with a hand wheel 18, the hand wheel 18 controls the tray 12 to slide laterally on the frame through the lead screw 17, and the battery can be adjusted in small quantities when the battery box 10 is loaded. The relative position of box 10 and car battery rack 11.

The battery box booster mechanism of the present invention drags the battery box 10 out of the car battery rack 11: the pawl 6 and the ratchet 7 are in the state of FIG. When a sufficient horizontal pulling force is applied to the handle 19, the battery box 10 will be driven to start moving, the stop rod 8 is in a straightened state, and the bracket 2 is driven to slide on the longitudinal guide rail 15, the force point of the pawl 6 and the ratchet 7 disappears, and the battery The case 10 slides into the tray 12 along the rollers 13, and at this moment, the lever arm 4 resets under the action of the return spring 9.

The process of the battery box booster mechanism of the present invention approaching the battery box 10 along the longitudinal guide rail: the pawl 6 is on the left side of the lever arm 4 and slides along with the lever arm 4. The pawl 6 is transferred to the right side of the lever arm 4, so that a suitable tooth surface on the pawl 6 and the ratchet 7 forms a new force point, which is convenient for the battery box booster mechanism to produce a boosting effect during the battery box 10 pulling process.

As shown in Figure 5, the lead screw 17 has a horizontal fine-tuning effect on the tray 12. When the tray 12 is docked with the car battery rack 11, there may be a slight position difference between the unlocking claw 1 and the two handles of the battery box 10 in the left and right directions. At this time, by shaking the handwheel 18, it is ensured that the unlocking claw 1 is just above the battery box 10 to facilitate the grabbing and unlocking of the battery box 10 by the unlocking claw 1 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the scope of the claims of the present invention.

Claims (7)

1. The booster mechanism of the battery box, which is characterized in that it includes an unlocking claw (1), a bracket (2), a lever arm (4), a support rod (5), a support member (7), and a limit rod (8). The support (7) has a ratchet structure, and the bottom end of the lever arm (4) is hinged with a pawl (6) through a pin shaft, and the pawl (6) is supported in the ratchet. 4) A bracket (2) is provided parallel to one side, and a limit rod (8) is provided between the bracket (2) and the lever arm (4). The limit rod (8) has a telescopic structure. A support rod (5) is provided below the limit rod (8), and one end of the support rod (5) is fixedly connected to the bracket (2), and the other end is hinged on the lever arm (4) through a pin shaft. A return spring (9) is provided between the bracket (2) and the lever arm (4), and the return spring (9) is placed between the limit rod (8) and the support rod (5); the unlocking The claw (1) is set on the bracket (2), and a slider (3) is provided between the unlocking claw (1) and the bracket (2), and the unlocking claw (1) can be positioned on the bracket ( 2) Sliding vertically; the lever arm (4) is provided with a groove at the hinged end with the ratchet (6). 2. The booster mechanism according to claim 1, characterized in that, the unlocking pawl (1) is a rod body with wedge blocks vertically downwards at both ends. 3. The booster mechanism according to claim 1, characterized in that, the limit rod (8) is composed of two rods hinged by a pin, and the two ends of the limit rod (8) are hinged by a pin on said bracket (2) and lever arm (4). 4. The booster mechanism according to claim 1, characterized in that, a handle (19) is provided on the top end of the lever arm (4). 5. A battery box replacement device with a booster mechanism according to claim 1, characterized in that it includes a frame, a battery box booster mechanism, a battery box tray (12) and a conveying roller table composed of rollers (13) ( 14), the bottom of the tray (12) is provided with a horizontal rail (16), the tray (12) is slidably connected to the top of the frame through the horizontal rail (16), and the top of the tray (12) is provided with a longitudinal rail (15), slide grooves (20) are provided on both sides of the lower part of the bracket (2) of the battery box booster mechanism, and the battery box booster mechanism is set on the longitudinal rail (15) through the slide grooves (20), so that the battery The box booster mechanism slides on the pallet (12) along the longitudinal rail (15), and the conveying rollers are arranged on the top of the tray (12) and on both sides of the battery box booster mechanism. 6. The battery box replacement device according to claim 5, characterized in that, the surface of the roller (13) is provided with an annular groove. 7. The battery box replacement device according to claim 5, characterized in that, the bottom of the tray (12) is provided with a lead screw (17), and one end of the lead screw (17) is fixedly connected with a hand wheel (18 ), the hand wheel (18) controls the sliding of the tray (12) on the frame through the lead screw (17).