WO2021128826A1

WO2021128826A1 - Battery-replaceable load-bearing motion apparatus

Info

Publication number: WO2021128826A1
Application number: PCT/CN2020/103699
Authority: WO
Inventors: 丁习坤; 李松磊; 来瑞俊; 祝礼康; 刘俊; 丁辉; 胡新举; 唐智翀
Original assignee: 上海玖行能源科技有限公司
Priority date: 2019-12-25
Filing date: 2020-07-23
Publication date: 2021-07-01

Abstract

Provided is a battery-replaceable load-bearing motion apparatus, comprising: an apparatus vehicle body (1) and a battery-replacement battery box positioning and locking apparatus (2); the battery-replacement battery box positioning and locking apparatus (2) is located on the apparatus vehicle body (1), and is used for locking the battery-replacement battery box (3). The battery-replaceable mobile load-bearing apparatus can achieve accurate and reliable positioning of battery-replacement battery box (3), and achieves quick release of the fixed state of the battery-replacement battery box (3).

Description

Replaceable electric load moving device

Technical field

The present invention relates to the technical field of charging and swapping, in particular, to the technical field of battery swapping for mobile devices.

Background technique

At present, there are two modes of power exchange and charging in the field of electric devices. The battery box in the power-swap mode adopts a structure that can be quickly replaced and can be replaced in a dedicated power-swap station. The swap station is equipped with charging devices, multiple battery boxes and multiple charging stations. Under the action of the special battery replacement device, the discharged battery box is removed, put into the charging station, and the charged battery box is installed on the electric device. The battery box in the charging mode adopts a fixed structure. After the electric device is discharged, it can only be charged by the charging gun.

The current electric device of the battery exchange mode can complete the battery box replacement in a short time (generally within 5 minutes). Due to the short battery exchange time, the number of devices required to complete a specific task is small. However, it is necessary to build a dedicated swap station, invest additional funds, occupy a certain area of land, and have certain operation and maintenance costs.

Summary of the invention

In view of the shortcomings in the prior art, the purpose of the present invention is to provide a replaceable mobile load carrying device, including: a device body and a battery box positioning and locking device, where the battery box positioning and locking device is located in the Device on the body.

Further, the positioning and locking device for the battery box for battery replacement includes: an oblique block positioning component, the oblique surface of the oblique block positioning component is outward, and a side-insertion locking mechanism is provided on the oblique block positioning component.

Furthermore, the side-insertion locking mechanism includes an air cylinder, a connecting mechanism, a pneumatic fixing tongue, and a locking body; wherein the push rod pushing end of the air cylinder is connected to one end of the connecting mechanism, and the connecting mechanism The other end is connected to the pneumatic fixing tongue, the locking body is provided with a locking hole that matches the shape and size of the pneumatic fixing tongue, and the pneumatic fixing tongue passes through the air cylinder under the action of the air cylinder. The connecting mechanism is pushed into the locking hole.

Compared with the prior art, the present invention has at least one beneficial effect as follows: the present invention can realize the accurate and reliable positioning of the battery box, and at the same time realize the quick release of the fixed state of the battery box for battery replacement.

Description of the drawings

By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more apparent:

Figure 1 is a diagram of a replaceable mobile device.

Figure 2 is a diagram of the positioning and locking device for the battery box for battery replacement.

Figure 3 is a schematic diagram of the structure of the battery box for battery replacement.

Figure 4 is a schematic diagram of the height of the three-level positioning component.

Figure 5 is a diagram of a side-insertion locking mechanism.

Figure 6 is a diagram of a side-insertion locking mechanism.

The symbols in the figure are respectively indicated as: 1 is the body of the device, 2 is the positioning and locking device for the battery box for battery replacement, 3 is the battery box for battery replacement; 201 is the battery box fixing base, 202 is the inclined block positioning component, and 203 is the positioning taper pin , 205 is a side plug locking mechanism, 206 is a connector socket guide hole, 207 is a battery box, 208 is a connector plug, 209 is a bottom beam of the battery box, 210 is a positioning hole, 211 is a connector plug guide post, 212 It is a reinforcing part, 213 is a positioning block, 214 is a support; 501 is a cylinder, 502 is a limit sleeve, 503 is a compression spring, 504 is a connecting rod, 505 is a pneumatic fixing tongue, 506 is a set screw, and 507 is a guide sleeve 508 is a sliding sleeve, 509 is a spring pin, 510 is a diagonal block positioning component, 511 is a baffle, 512 is a baffle mounting screw, and 513 is a cylinder mounting screw.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be pointed out that for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

As shown in Figure 1, the replaceable mobile load-carrying device includes: a device body 1 on which is provided with a battery box positioning and locking device 2, a battery switch box 3, and a front; wherein the front of the vehicle has a cab , Behind the front of the car is the device body 1, which is connected to the device body 1. The device body 1 is the main load-bearing component and carries the goods to be transported. Below the device body 1 are wheels, and the wheels can be arranged in two groups or more than two groups according to the specific load of the load-carrying device. The battery box positioning and locking device 2 for battery replacement is located on the body 1 of the device, and is used to fix and lock the battery box 3 for battery replacement. The replacement battery box positioning and locking device 2 is used to lock and fix the replacement battery box on the body 1 of the device. When the battery needs to be replaced, the locking of the replacement battery box positioning and locking device 2 is released by hoisting Lift and replace the battery box 3 for battery replacement, and after replacing it with a fully charged battery box 3, use the battery box fixing and locking device 2 to replace the new battery box 3 again. Lock tightly.

2, the battery box positioning and locking device 2 for battery replacement may include: a battery box fixing base 201, the shape and size of the battery box fixing base 201 is matched with the battery box 3, and the battery box fixing base 201 is provided There are oblique block positioning components 202 for three-level positioning, positioning tapered pins 203, connector socket guide holes 206, and a side-insertion locking mechanism 205 for locking after positioning. The battery box fixing base 201 is a rectangular frame. Each side of the rectangular frame is provided with a diagonal block positioning component 202, and the diagonal block positioning component 202 is located on the inner side of the rectangular frame, and the diagonal surface of the diagonal block positioning component 202 is outwards. In order to realize the rough positioning of the battery box 3 for battery replacement; the two opposite sides (long sides) of the rectangular frame are also provided with positioning tapered pins 203, the height of the positioning tapered pins 203 is smaller than the height of the inclined block positioning part 202, The positioning tapered pin 203 is inserted into the positioning hole 304 at the bottom of the battery box 3 for battery replacement and is used to achieve precise positioning of the battery box 3 for battery replacement. The rectangular frame of the battery box fixing base 201 is also provided with a connector socket guide hole 206. The height of the positioning tapered pin 203 is higher than the height of the connector socket guide hole 206. The connector plug guide post on the battery box 3 is replaced. 303 is inserted into the guide hole 206 of the connector socket to realize the coupling and positioning of the connector. A side-insertion locking mechanism 205 is provided on the oblique block positioning component 202, and the side-insertion locking mechanism 205 is connected to the replacement battery box 3 at the oblique block positioning component 202, the positioning taper pin 203, and the connector socket guide hole 206 Then lock it. There are six oblique block positioning components 202, which are fixed around the inner side of the frame of the battery box fixing base 201, four are arranged in the length direction of the rectangular frame, and two are arranged in the width direction of the rectangular frame; in the battery box fixing base 201 Four positioning tapered pins 203 are fixed inside the frame, and the inclined block positioning component 202 and the positioning tapered pins 203 are preferably arranged symmetrically. The six oblique block positioning parts 202 are square columnar parts, the upper end of which is provided with an inclined surface, which faces the outside of the square frame; the positioning tapered pin 203 is located on one side of the oblique block positioning part 202, and the top of the inclined block positioning part 202 is provided It is cone-shaped. The angle of the inclined surface can be selected to be less than or equal to 45 degrees. Of course, in other embodiments, it can also be selected and designed according to actual conditions, and is not limited to this. Similarly, in other embodiments, the columnar shape can also be other shapes, and is not limited to a square shape.

The oblique block positioning component 202 and the positioning tapered pins 203 are arranged symmetrically. The oblique block positioning component 202 located on a set of opposite sides of the rectangular frame is provided with a positioning tapered pin 203 on one side, and a strengthening member 212 for increasing strength is provided on the other side. Ensure stability and improve safety. The positioning tapered pin 203 is disposed on a positioning block 213, and the positioning block 213 is fixed on the long side of the square frame. The positioning block 213 also adopts a symmetrical arrangement. Through these symmetrical arrangements, a better balance is provided for the positioning and locking of the entire battery box 3 during the battery exchange process.

Referring to Figures 2, 3 and 7, the internal surface of the bottom beam 301 of the battery box frame is matched with the oblique block positioning component 202 of the battery box fixing base 201, and the positioning hole 304 at the bottom of the battery box 3 frame and the battery box fixing base 201 The positioning taper pin 203 is matched; the connector plug guide post 303 at the bottom of the frame of the battery box 3 is matched with the connector socket guide hole 206 of the battery box fixing base 201. The frame beam 301 at the bottom of the battery box cooperates with the side-insertion locking mechanism 205 to finally realize the reliable positioning of the battery box 3 and the reliable connection of the connectors.

FIG. 3 is a schematic diagram of the structure of the battery box 3 for battery replacement. The replacement battery box 3 is a frame structure. The bottom of the frame of the replacement battery box 3 is provided with a connector plug 302, a bottom beam 301 of the replacement battery box 3, a positioning hole 304, and a connector plug guide post 303 for connecting with the battery. The components of the box fixing base 201 are matched and positioned. The connector plug 302 is set on the bottom beam 301 of the battery box 3, the connector plug guide post 303 is set near the connector plug 302, and the positioning hole 304 is located on one side of the connector plug guide post 303. Four connector plugs 302 are installed at the bottom of the frame structure of the battery box 3, each plug has two connector plug guide posts 303, and the connector plug guide posts 303 are coupled to the connector socket 6 for positioning; 3 Four positioning holes 304 are fixed at the bottom of the box frame structure, and the positioning tapered pins 203 of the battery box fixing base 201 are inserted into these four positioning holes 304 to realize the cooperation between the two.

As shown in FIG. 4, the long side side view and the short side side view of the battery box fixing base 201 are shown as dimension H1 in the figure. The height of the inclined block positioning component 202 is higher than the positioning tapered pin 203. Four connector sockets are fixed in the middle of the frame of the battery box fixing base 201, and each connector socket has two guide holes for coupling and positioning with the connector plug 302. The height of the positioning tapered pin 203 is higher than the height of the connector socket guide hole 206, as shown in the figure as the size H2. Through the setting of different heights, when performing three-level positioning, precise positioning can be achieved from high to bottom.

4, the connector socket guide hole 206 is provided on the support 14, and the two ends of the support 14 are respectively connected in the middle of a set of opposite sides of the square frame, that is, set on one of the rectangular frames shown in the figure. To the middle of the long side. The support 14 may be parallel to a set of short sides of the rectangular frame. Of course, in other embodiments, selection and design can also be made according to actual conditions, and it is not limited to this.

Referring to Figures 5 and 6, the side-insertion locking mechanism 205 and the oblique block positioning component 202 are connected structure diagrams and exploded diagrams. The side-insertion locking mechanism 205 includes an air cylinder 501, a connecting mechanism, a pneumatic fixing tongue 505 and an oblique block positioning component 202; the locking connecting mechanism includes a compression spring 503, a connecting rod 504, a set screw 506 and a spring pin 509. The pneumatic fixing tongue 505 can be inserted into the locking hole in the middle of the inclined block positioning component 202 under the pushing action of the cylinder 5011, so as to conveniently fix the battery box 3 on the heavy truck, and when the battery box 3 needs to be replaced By pulling the pneumatic fixing tongue 505 by the air cylinder 501, the fixed state of the battery box 3 can be quickly released, so that the battery box 3 can be quickly replaced. The compression spring 503 is used as the power source of the pneumatic fixing tongue 505 to provide thrust for it. The compression spring 503 is sleeved on the outside of the connecting rod 504; and one end of the connecting rod 504 is fixedly connected to the push rod of the cylinder 501, and the other end is fixedly connected to the pneumatic fixing tongue 505 through a spring pin 509; wherein, the spring pin 509 is along the cylinder The radially elastically deformable flexible component of the push rod of 501 makes a flexible floating connection between the pneumatic fixing tongue 505 and the connecting rod 504, thereby preventing the radial impact force of the pneumatic fixing tongue 505 from acting on the push rod of the cylinder 501 on. The set screw 506 is arranged on the connecting rod 504 and is pressed against the contact part of the connecting rod 504 and the push rod of the cylinder 501, and is tightened to prevent the screw between the cylinder 501 and the connecting rod 504 from loosening.

A guide sleeve 507 is sleeved on the periphery of the pneumatic fixing tongue 505, and the guide sleeve 507 is used to guide the radial movement of the pneumatic fixing tongue 505. The sliding sleeve 508 is installed between the pneumatic fixing tongue 505 and the guide sleeve 507 to reduce friction and guide. The limit sleeve 502 functions to limit the displacement of the sliding sleeve 508. Further, in other embodiments, a baffle plate 511 is provided on the outer side of the inclined block positioning component 202 compared to the pneumatic fixing tongue 505, and the baffle plate 511 is provided with a suitable fitting matching the pin position of the pneumatic fixing tongue 505. The retaining hole can limit the position of the pneumatic fixing tongue 505 and the sliding sleeve 508, and at the same time prevent the pneumatic fixing tongue 505 from rotating axially. In some embodiments, the shape and size of the body part and pin head part of the pneumatic fixing tongue 505 during processing can be designed according to the actual situation, but the outer contour shape and size of the pin head part must be slightly smaller than that of the body part. The contour shape and size requirements are matched with the baffle 511 provided on the side of the inclined block positioning component 202 to complete the restriction of the pneumatic fixing tongue 505 and the sliding sleeve 508. The baffle and cylinder can be installed by baffle mounting screws 512 and cylinder mounting screws 513.

When the above-mentioned side-plug locking mechanism 205 works, the cylinder 501 starts to work and its push rod extends. The push rod applies thrust to the compression spring 503. The compression spring 503 compresses on the connecting rod 504 and transmits its thrust to the spring pin 509. Under the thrust of the spring pin 509, the pneumatic fixing tongue 505 and the sliding sleeve 508 begin to move radially under the guidance of the guide sleeve 507, that is, move toward the locking hole opened on the inclined block positioning component 202 until the pneumatic fixing tongue The pin head portion of 505 protrudes from the blocking hole on the baffle 511, thereby completing the locking. When the battery box 3 needs to be replaced, the pneumatic fixing tongue 505 is pulled by the air cylinder 501 to move it away from the blocking hole of the baffle 511 to complete the unlocking. The cylinder 501 is used as the power source, and the pneumatic fixing tongue 505 is driven by the push and pull of the cylinder 501 to realize the locking and unlocking of the battery box 3 for battery exchange, and realize the installation and installation of the battery box 3 quickly and conveniently. replace.

The three-level positioning and locking method for the battery box 3 for battery replacement includes: setting the oblique block positioning component 202, the positioning taper pin 203, the connector socket guide hole 206 and the side plug locking mechanism 205 on the battery box fixing base 201; The external outline of the frame of the battery box 3 for battery replacement is matched with the shape of the battery box fixing base 201. A positioning hole 304 and a connector plug guide post 303 are provided at the bottom of the frame of the battery box for battery replacement. The three-level positioning and locking method of the battery box 3 includes three-level positioning. Specifically, it includes coarse positioning of the battery box 3 for battery replacement, fine positioning of the battery box 3 for battery replacement, and connector coupling positioning. Among them:

The first level of positioning is the rough positioning of the battery box 3 for battery replacement: match the outer contour of the frame of the battery box 3 with the positioning of the inclined block positioning component 202 of the battery box fixed base 201;

The second level of positioning is the fine positioning of the battery box 3 for battery replacement: After the battery box 3 is roughly positioned, the positioning hole 304 of the battery box 3 and the positioning cone of the battery box fixing base 201 are aligned. Pin 203 matches;

The third level of positioning is the connector coupling positioning: after the battery box 3 is accurately positioned, the connector plug guide post 303 of the battery box 3 is matched with the guide hole 206 of the connector socket;

Finally, the bottom crossbeam of the frame of the battery exchange box 3 is locked with the side-insertion locking mechanism 205 in cooperation.

Specifically, in the three-stage positioning and locking method of the battery box 3 for battery replacement, the positioning sequence is designed: because the height of the inclined block positioning component 202 is higher than the positioning tapered pin 203, and the height of the positioning tapered pin 203 is higher than that of the connector For the height of the socket guide hole 206, properly adjust the installation height of the connector plug 302 and the socket. The positioning sequence is that after the positioning of the inclined block positioning component 202 is completed, the positioning taper pin 203 starts to enter the positioning hole 304, and the positioning taper pin 203 is positioned After completion, the connector plug guide post 303 starts to enter the connector socket guide hole 206.

When the battery box 3 is dropped, the bottom inner side of the frame of the battery box 3 first contacts the inclined block positioning part 202, and when the bottom frame of the battery box 3 crosses the inclined surface of the inclined block positioning part 202 When entering the vertical plane, the preliminary rough positioning of the battery replacement box 3 is completed, and the bottom of the frame of the battery replacement box 3 is confined in the middle of the six inclined block positioning components 202. As the battery box 3 continues to descend, the positioning taper pin 203 of the battery box fixing base 201 enters the positioning hole 304 at the bottom of the battery box 3. When the inner surface of the positioning hole 304 crosses the positioning cone When the tapered inclined surface of the shaped pin 203 enters the vertical surface, the accurate positioning of the battery box 3 for battery replacement is completed. When the battery box 3 continues to descend, the connector plug guide post 303 enters the guide hole 206 of the connector socket, and the battery box 3 continues to descend to complete the mating and position the connector.

After the positioning of the battery replacement battery box 3 is completed, the cylinder 501 is activated to push out the pneumatic fixing tongue 505. After the pneumatic fixing tongue 505 is extended, it is pressed on the bottom beam 301 of the battery replacement battery box 3. The fixing tongue 505 presses the battery box 3 for battery replacement on the fixed base 201 of the battery box to ensure the reliability of fixing the battery box 3 for battery replacement during driving of the device.

The above embodiment of the battery box positioning and locking device for battery replacement is illustrated by the specific arrangement of the battery box fixing base 201 of the rectangular frame, the 6 inclined block positioning components 202, and the 6 pneumatic fixing tongues 505. In other embodiments, the above The number of can also be adjusted according to actual conditions, and is not limited to what is described in the foregoing embodiment. At the same time, the above-mentioned preferred technical features can be used in any combination as long as there is no conflict with each other.

The above embodiment of the present invention uses three-level positioning and locking, which can realize accurate and reliable positioning when the battery box has a large horizontal error during the process of placing the battery box by hoisting. The location requirements are not high, which makes the battery box hoisting position control easier, and can more conveniently and simply realize the hoisting positioning of the battery box and the locking after the positioning. It is especially suitable for the battery box of the heavy truck to be replaced. Provides the safety and reliability of the positioning and installation of the battery box.

Compared with the prior art, the present invention has at least one beneficial effect as follows: the present invention adopts a battery box positioning and locking device for battery replacement. Through three-level positioning, the battery box can be placed in the battery box by hoisting. Accurate and reliable positioning can be achieved under the condition of large horizontal error, which is suitable for battery box replacement of heavy trucks. Further, the locking mechanism of the present invention pushes the pneumatic fixing tongue through the on-board air source drive cylinder, which can conveniently and reliably fix the battery box for battery replacement. When the battery box needs to be replaced, the pneumatic fixing tongue can be quickly pulled by the on-board air source drive cylinder. Release the fixed state of the battery box.

In the drawings of the above-mentioned embodiments, the same reference numerals represent the same parts or parts with the same function, and "upper", "lower", "front", "rear", "left" and "in the description" are used in the description. "Right" and other similar terms only refer to the figures, for the purpose of describing the utility model conveniently.

All the drawings of the above embodiments are only for the convenience of explaining the technical content of the utility model; the technical features such as the numbers used in the optimal embodiment, the positions of the parts, the relationship between the parts, and the dimensions of the parts are not It constitutes a limitation on the technical solution itself, and should extend to the entire field covered by the technical field.

Claims

A replaceable mobile load-carrying device, which is characterized in that it comprises: a device body and a positioning and locking device for the battery box of the battery;

The positioning and locking device for the battery box for battery replacement is located on the body of the device.
The device according to claim 1, wherein the positioning and locking device for the battery box for battery replacement comprises:

Oblique block positioning component, the oblique surface of the oblique block positioning component is outward;

A side-insertion locking mechanism is provided on the inclined block positioning component.
The device according to claim 2, further comprising a positioning tapered pin.
4. The device according to claim 2, further comprising a connector plug guide hole.
The device according to claim 1, further comprising a battery replacement box, which is fixed and locked to the vehicle body by a battery replacement battery box positioning and locking device.
The device according to claim 2, wherein the side-insertion locking mechanism includes a cylinder, a connecting mechanism, a pneumatic fixing tongue, and a locking body; wherein the push end of the cylinder is connected to the connecting One end of the mechanism, the other end of the connecting mechanism is connected to the pneumatic fixing tongue, the locking body is provided with a locking hole that matches the shape and size of the pneumatic fixing tongue, and the pneumatic fixing tongue Under the action of the cylinder, the connecting mechanism is pushed into the locking hole.
The device according to claim 2, wherein the connecting mechanism comprises a compression spring, a connecting rod, a set screw and a spring pin, wherein the compression spring provides a thrust to the pneumatic fixing tongue, and the connecting rod One end of the connecting rod is connected to the push rod of the cylinder and the two is tightened by setting the tightening screw, the other end of the connecting rod is connected to the pneumatic fixing tongue and the spring pin is provided to form a structure between the two Floating connection.
The device according to claim 8, wherein the connecting rod is sleeved with a guide sleeve on one side of the pneumatic fixing tongue, and a sliding sleeve is further provided between the pneumatic fixing tongue and the guide sleeve ；

The connecting rod is also provided with a limit sleeve that limits the displacement of the sliding sleeve;

A baffle plate is provided on one side of the locking body, and a blocking hole is opened on the baffle plate. The hole diameter of the blocking hole is smaller than the hole diameter of the locking hole, and the blocking hole restricts the circumference of the pneumatic fixing tongue. To rotate.