WO2023051795A1

WO2023051795A1 - Positioning component, battery swapping device, and unlocking method when using battery swapping device

Info

Publication number: WO2023051795A1
Application number: PCT/CN2022/123339
Authority: WO
Inventors: 张建平; 朱明厚; 万里斌
Original assignee: 奥动新能源汽车科技有限公司; 上海电巴新能源科技有限公司
Priority date: 2021-09-30
Filing date: 2022-09-30
Publication date: 2023-04-06
Also published as: CN115891749A

Abstract

A positioning component, a battery swapping device, and an unlocking method when using the battery swapping device. The positioning component (100) is disposed on the battery swapping device, and is used for positioning between the battery swapping device and an electric vehicle when the battery swapping device swaps a battery for the electric vehicle. The electric vehicle is provided with a positioning matching part. The positioning component (100) comprises a positioning component body (101); an accommodation area (31) is formed on the positioning member body (101); a detecting component (5) is provided in the accommodation area (31); the detecting component (5) is used for detecting whether the positioning component (100) and the positioning matching component are in place when the battery swapping device swaps the battery of the electric vehicle. Also provided are a battery swapping device comprising the positioning component, and a corresponding unlocking method. The positioning component (100) is used in conjunction with the positioning matching component on the vehicle. The detecting component (5) is used to detect whether the positioning component (100) and the positioning matching component are in place, that is, whether the distance between the positioning component (100) and the positioning matching component meets a requirement, so as to achieve a stable matching state between the positioning component (100) and the positioning matching component, thereby achieving the objective of reliable unlocking and locking, and ensuring the success rate of unlocking.

Description

Positioning piece, power swapping device and unlocking method for using the power swapping device

This application claims the priority of Chinese patent application 2021111659385 with a filing date of 2021/9/30. This application cites the full text of the above-mentioned Chinese patent application.

technical field

The invention relates to the field of vehicle battery replacement, in particular to a positioning member, battery replacement equipment and an unlocking method using the battery replacement equipment.

Background technique

Nowadays, electric vehicles are more and more popular among consumers. In the era of popularization of electric vehicles, battery replacement, as one of the feasible solutions to solve the battery life problem of electric vehicles, has the advantages of convenience and quickness, and has been widely used at present. When replacing the battery, in addition to the battery capacity and safety factors of the battery pack itself, the most important thing is the success rate of the battery replacement and the service life of the battery replacement components in the entire system.

The battery pack is locked on the car through the locking mechanism. In the prior art, the battery pack on the electric vehicle is replaced by the battery replacement equipment. The battery replacement equipment is equipped with an unlocking mechanism for unlocking the locking mechanism. The existing technology exists The inaccurate alignment between the battery replacement equipment and the electric vehicle leads to the problem that the unlocking mechanism cannot unlock the locking mechanism.

However, in the prior art, due to the different models of electric vehicles, the structural design of the vehicle itself is also different, so when the battery swapping device performs the unlocking operation, the height of the unlocking mechanism on the battery swapping device relative to the horizontal plane will also be different If the battery replacement equipment cannot be matched with the body bracket and battery pack of the electric vehicle in the height direction, the unlocking will fail, which will greatly affect the success rate of unlocking.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the technical problem in the prior art that the positioning parts on the battery replacement equipment do not fit properly with the positioning matching parts on the electric vehicle, resulting in a low unlocking success rate, and provide a positioning part, battery replacement The unlocking method of the device and the battery replacement device can improve the success rate of unlocking.

The present invention solves the above technical problems through the following technical solutions:

A locating part, which is arranged on the battery exchange equipment, is used for positioning between the battery exchange equipment and the electric vehicle when the battery exchange equipment replaces the battery of the electric vehicle. The electric vehicle is provided with a positioning matching part, and the positioning part includes The locator body, the locator body is provided with an accommodation area, and further includes:

The detection element is arranged in the accommodation area, and the detection element is used for detecting whether the positioning part and the positioning matching part are in place when the battery replacement equipment replaces the battery of the electric vehicle.

In the present invention, through the above-mentioned structural form, the positioning piece is used in conjunction with the positioning matching piece (secondary lock or positioning block) on the vehicle, and the detection element is used to detect whether the positioning piece is matched with the positioning matching piece in place, that is, the positioning piece and the positioning piece Whether the spacing between the matching parts meets the requirements, so as to achieve a stable cooperation state between the positioning part and the positioning matching part before the power exchange equipment performs the unlocking operation, so as to facilitate the power exchange equipment to carry out the locking mechanism on the electric vehicle and improve the success of unlocking Rate.

Preferably, the positioning member body is provided with a mounting structure, and the positioning member is installed on the power exchange equipment through the mounting structure;

Wherein, at least one position adjustment mechanism is provided on the installation structure, and the position adjustment mechanism is used to adjust the relative position of the positioning component body relative to the positioning matching component in the horizontal direction.

In the present invention, through the above-mentioned structural form, a connection structure for installing the above-mentioned positioning element is provided, and the position adjustment of the positioning element body relative to the positioning matching element in the horizontal direction can be realized, so that the positioning element body and the positioning matching can be flexibly adjusted distance in the horizontal direction.

Preferably, the position adjustment mechanism is an adjustment hole opened on the installation structure, the extension direction of the adjustment hole is perpendicular to the vertical plane where the positioning matching part is located, and the adjustment hole passes through the tight The firmware is set on the battery swapping device.

In the present invention, a specific embodiment of the position adjustment structure is provided to realize the position adjustment of the positioner body relative to the positioning matching member in the horizontal direction, so as to ensure that the positioner body can be smoothly inserted between the battery pack and the vehicle body bracket when unlocking. In the meantime, if it is found that the body of the locator cannot be inserted between the battery pack and the body bracket, the fastener can be loosened, the position of the body of the locator can be adjusted, and then the fastener can be tightened again.

Preferably, the mounting structure is a mounting plate, and the end of the locator body away from the accommodation area is connected to the mounting plate;

There are at least two adjusting holes and they are respectively located on both sides of the positioning member body.

In the present invention, by adopting the above positioning member structure, a plurality of position adjustment holes are provided on both sides of the positioning member body, so that the positioning member body can be more stably fixed.

Preferably, the first end of the locator body is provided with an accommodating opening recessed toward the inside of the locator body for accommodating the locating matching piece, and the second end of the locator body is disposed on the battery exchange equipment;

The receiving opening constitutes the receiving area.

In the present invention, by adopting the above positioning member structure, the detection element detects whether the positioning member is in place with the positioning matching member.

Preferably, the accommodating opening is provided with a detection opening recessed toward the main body of the locator, and the detection opening is used for accommodating the detection element.

In the present invention, by setting the detection port to accommodate the detection element, the effect of protecting the detection element is achieved, and the stability and reliability of the detection result are improved.

Preferably, the surface of the detection element does not protrude from the inner wall of the accommodating opening.

In the present invention, by adopting the above-mentioned structure, the detection element is completely arranged in the detection port to protect the detection element from being damaged due to its rigid contact with the positioning matching part, so as to ensure the stability and reliability of the detection result.

Preferably, the body of the locator is provided with a cable hole communicating with the detection port, and the cable hole allows the signal line of the detection element to pass through.

In the present invention, by adopting the above-mentioned positioning member structure, the cable hole can pass through the signal line of the detection element, thereby facilitating wiring for electrical engineers, without additional purchase of wire binding tape.

Preferably, there are two wiring holes, the wiring holes are opened on the side wall of the detection port, and the two wiring holes are respectively located on both sides of the detection element.

In the present invention, through the above structure, the signal lines can be arranged from different directions according to different circuit layouts by electrical engineers.

Preferably, the accommodating opening has an opening end for the positioning matching piece to enter the accommodating opening, and the inner wall of the accommodating opening is provided with two opposite first inclined surfaces near the opening end;

Along the direction in which the second end of the positioning element body points to the first end of the positioning element body, the two first inclined surfaces gradually move away from each other.

In the present invention, the first inclined surface can play a guiding role when the positioning component and the positioning matching component approach each other for matching.

Preferably, the junction between the first slope and the first end of the positioning element body transitions smoothly.

In the present invention, by adopting the above positioning member structure, the unlocking range capable of positioning and guiding is increased, the requirement for positioning accuracy is further reduced, and the service life of the positioning member is prolonged.

Preferably, the first end of the locator body is provided with a second slant on both sides of the first slant, and the plane of the second slant is inclined relative to the plane of the locator body.

In the present invention, by adopting the above-mentioned positioning member structure, due to the different sizes of the battery packs and the different placement positions of the batteries, it is possible to avoid collisions between the positioning member and the battery pack during the process of the positioning member and the positioning matching member approaching each other, thereby greatly reducing the requirements for positioning accuracy. Moreover, the second slope can also play a guiding role when the positioning member extends into the gap between the battery pack and the vehicle body bracket.

Preferably, the accommodating area includes a bottom wall and a side wall, and the detection element is arranged on the bottom wall for measuring the distance between the positioning matching part and the detection element.

In the present invention, by adopting the above-mentioned positioning member structure, a detection element setting method is provided. By detecting the distance between the positioning matching member and the detecting element, it is judged whether the positioning matching member and the positioning member are in place.

Preferably, the accommodating area includes a bottom wall and a side wall, the detection element is arranged on the side wall, and when the positioning matching part and the positioning part are fitted in place, the detection element is in a triggered state.

In the present invention, by adopting the above-mentioned positioning member structure, a method of setting the detection element is provided. By detecting whether the positioning matching member triggers the detection element, it is judged whether the positioning matching member and the positioning member are in place.

Preferably, the detection element includes at least one of a visual sensor, a Hall sensor or a photoelectric sensor.

Preferably, the positioning matching part is a positioning block or a secondary lock of the battery pack.

A battery swapping device, comprising a vehicle positioning unit and a battery positioning unit, the vehicle positioning unit is used for positioning between the battery swapping device and the vehicle, the battery positioning unit is used to carry the battery pack and drive the battery pack to move, the vehicle positioning unit is configured as above positioning parts.

In the present invention, through the above structural form, the power exchange equipment can use the above positioning parts to realize the positioning of the positioning matching parts in the height direction, and accurately detect whether the positioning matching parts are in place, so as to improve the unlocking success rate of the power changing equipment , to achieve the purpose of reliable unlocking.

An unlocking method using the above battery swapping device, used to realize the battery swapping of a vehicle, includes the following steps:

S1: Adjust the position of the battery replacement equipment relative to the vehicle in the horizontal direction, so that the accommodation area of the positioning part is aligned with the positioning matching part on the vehicle;

S2: Adjust the position of the battery replacement device relative to the vehicle in the height direction, and detect whether the positioning matching part and the positioning part are in place through the detection element, and if so, perform the unlocking operation of the battery replacement device.

In the present invention, through the above steps, the unlocking method provides an unlocking method that starts unlocking only when the positioning matching part and the positioning part are in place, that is, only when the unlocking mechanism of the power exchange equipment is connected with the body bracket Only when the locking mechanism is matched in the height direction can the unlocking operation be performed, which greatly improves the success rate of unlocking and achieves the purpose of reliable unlocking.

Preferably, the detection element in step S2 detects whether the positioning matching part and the positioning part fit in place specifically as follows:

The detection element acquires the relative distance L ₁ between it and the positioning matching part, and judges whether the relative distance L ₁ is within a preset distance range.

In the present invention, since the size, height, and position of the frame of different models may vary, by setting a preset distance range for the distance between the detection element and the positioning matching part, when the distance between the detection element and the positioning matching part When the distance between them is within the preset distance range, it is considered that the positioning part and the positioning matching part are in a state of fitting in place, thereby ensuring the success rate of subsequent unlocking operations.

Obtain the state of the detection element, if the detection element is in the state of being triggered.

In the present invention, through the above steps, another way of judging whether the positioning matching part and the positioning part are matched in place is provided.

Preferably, a primary lock is provided on the vehicle, and the primary lock has a primary lock groove and a primary lock tongue. The unlocking operation in step S2 includes:

S31: The battery replacement device drives the battery pack to move a first distance away from the opening of the first-level lock slot, so that there is a gap between the first-level lock tongue and the lock shaft of the battery pack.

In the present invention, by adopting the above steps, the lock shaft of the battery pack is separated from the corresponding primary or secondary locking tongue before unlocking, so that the primary or secondary locking tongue can Driven by the unlocking mechanism on the device, the first-level or second-level lock groove is opened to prevent the lock shaft from being in contact with the corresponding first-level or second-level lock tongue when unlocking, resulting in wear and tear on both.

Preferably, the unlocking operation also includes:

S32: After the battery replacement device drives the battery pack to move a second distance toward the opening of the primary lock slot, the battery pack falls off the vehicle.

In the present invention, by adopting the above steps, the position of the lock shaft of the battery pack in the first-level lock slot is moved through the battery tray until the lock shaft moves above the opening of the first-level lock slot. Here, because the first-level lock slot The lock shaft is no longer supported, so the battery pack will press down the battery tray on the power exchange device under the action of gravity, so that the lock shaft is separated from the primary lock slot, that is, the battery pack falls off the vehicle.

Preferably, the power exchange equipment includes an unlocking member. The primary lock has a lock link connected to the primary lock tongue. The lock link is used to drive the primary lock tongue to open or lock the opening of the primary lock slot. In step S31 After the battery replacement equipment drives the battery pack to move the first distance away from the opening of the first-level lock slot, it includes:

S311: The unlocking piece pushes up the lock connecting rod, and the lock connecting rod drives the primary lock tongue to move and open the opening of the primary lock groove.

In the present invention, by adopting the above steps, an unlocking method that can conveniently and quickly open the primary lock groove under the action of the elastic support force provided by the unlocking member is provided.

Preferably, when the detection element detects that the positioning matching part and the positioning part are in place in step S2, the unlocking part is in a pressed state.

In the present invention, by adopting the above-mentioned steps, the unlocking ejector rod is compressed and stored before unlocking, so as to ensure the success rate of unlocking and avoid wearing the primary lock tongue and lock shaft.

The positive and progressive effect of the present invention is that the positioning piece is used in conjunction with the positioning matching piece (secondary lock or positioning block) on the vehicle, and the detection element is used to detect whether the positioning piece is matched with the positioning matching piece in place, that is, the positioning piece and the positioning matching piece Whether the distance between them meets the requirements, so as to achieve a stable cooperation state between the positioning part and the positioning matching part, realize the purpose of reliable unlocking and locking, and ensure the success rate of unlocking.

Description of drawings

FIG. 1 is a schematic perspective view of the overall structure of the positioning member in Embodiment 1 of the present invention.

Fig. 2 is a side view when the locating member and the secondary lock are in place in Embodiment 1 of the present invention.

Fig. 3 is a three-dimensional schematic diagram when the positioning member and the secondary lock are mated in place in Embodiment 1 of the present invention.

FIG. 4 is a schematic structural view of the positioning member in Embodiment 1 of the present invention when it is disposed on the positioning portion of the vehicle.

Fig. 5 is a partial schematic diagram of the detection port of the positioning member in Embodiment 2 of the present invention.

Fig. 6 is a partial schematic diagram of the jacking up portion of the upper end of the positioning member in Embodiment 3 of the present invention.

Fig. 7 is a partial schematic view of the unlocking member and the primary lock in Embodiment 5 of the present invention when it is unlocked.

Fig. 8 is a flow chart of the unlocking method of the power exchange device in Embodiment 5 of the present invention.

FIG. 9 is a flow chart of a method for unlocking a power exchange device in Embodiment 6 of the present invention.

Explanation of reference signs:

Positioner 100, positioner body 101, secondary lock 210, secondary lock groove 211, secondary lock tongue 212, movable end 212a, shaft end 212b, accommodation opening 3, accommodation area 31, inner wall 32, side wall 321, bottom Wall 322, detection port 4, detection element 5, mounting plate 61, adjustment hole 62, cable hole 7, signal line 8, first inclined plane 91, second inclined plane 92, round transition area 93, vehicle positioning part 300, vehicle body Bracket 400 , primary lock 500 , unlocking block 510 , lock link 520 , primary lock slot 530 , primary lock tongue 540 , lock shaft 550 , and unlocking piece 600 .

Detailed ways

The present invention is further illustrated below by means of examples, but the present invention is not limited thereto within the scope of examples.

Example 1

This embodiment provides a battery replacement device, which is used to replace the battery of an electric vehicle, and the battery replacement device is provided with a positioning member 100 . The vehicle positioning part 300 is used to realize the positioning between the battery replacement equipment and the vehicle. The battery positioning part is used to carry the battery pack and drive the battery pack to move, also called a battery tray. The vehicle positioning part 300 is provided with this positioning part. The electric vehicle is equipped with a locking mechanism, and the battery pack is locked on the electric vehicle through the locking mechanism arranged on the body bracket 400 of the electric vehicle. The mechanism is unlocked to unlock the battery pack on the electric vehicle or realize the locking of the battery pack on the electric vehicle. Wherein, the positioning member can also realize the positioning between the battery changing equipment and the vehicle when the battery changing equipment replaces the battery of the electric vehicle.

Specifically, as shown in FIGS. 1-4 , the positioning member 100 in this embodiment. The positioning element 100 includes a positioning element body 101 in the shape of a plate, and a receiving area 31 is opened on the positioning element body 101 . The electric vehicle is equipped with a positioning matching piece, and the positioning piece 100 also includes a detection element 5 arranged in the accommodation area 31. The detection element 5 is used to detect the position between the positioning piece 100 and the vehicle when the battery pack of the electric vehicle is replaced by the power exchange equipment. Whether the positioning mating piece fits in place.

In this embodiment, the positioning matching part is the secondary lock 210 of the locking mechanism. The detection element 5 is used to detect whether the positioning part 100 is matched with the secondary lock 210, that is, whether the distance between the two meets the requirements, so as to achieve the position of the positioning part. The stable cooperation state between the 100 and the secondary lock 210 realizes the purpose of reliable unlocking and locking, and ensures the success rate of unlocking.

Specifically, as shown in FIGS. 1-4 , the first end (ie, the upper end) of the locator body 101 is provided with an accommodating opening 3 recessed toward the interior of the locator body 101 for accommodating the secondary lock 210 on the body bracket 400 , that is, for the secondary lock 210 on the vehicle body bracket 400 to extend into and match with it, the second end (ie, the lower end) of the positioning member body 101 is arranged on the vehicle positioning part 300 of the power exchange equipment through the installation structure, and the receiving port 3 This accommodation area 31 is formed. That is, the positioning member body 101 is provided with a mounting structure, and the positioning member 100 is mounted on the vehicle positioning portion 300 of the power swapping device through the mounting structure. At least one position adjustment mechanism is provided on the installation structure. In this embodiment, there are six position adjustment mechanisms, and the position adjustment mechanism is used to adjust the relative position of the positioner body 101 relative to the secondary lock 210 in the horizontal direction.

In other specific implementation manners, the number of position adjustment mechanisms on the installation structure is not limited to this example, and can be increased or decreased according to actual conditions, which will not be repeated here.

Specifically, as shown in Figures 1-4, the mounting structure is a mounting plate 61, and the positioning member body 101 is vertically arranged at the middle position of the mounting plate 61, that is, the mounting plate 61 extends outward to both sides of the positioning member body 101 and An end of the positioning member body 101 away from the receiving area is connected to the mounting plate 61 . The position adjustment mechanism is an adjustment hole 62 opened on the mounting plate 61, and the adjustment hole 62 is an oblong hole. The extension direction of the adjustment hole 62 is the direction perpendicular to the vertical plane where the secondary lock 210 is located, that is, the extension direction of the adjustment hole 62 is the same as the direction in which the mounting plate 61 extends outward, and the six adjustment holes 62 are divided into two groups. Two sets of adjustment holes 62 are respectively located on both sides of the locator body 101, that is, three adjustment holes 62 are provided at the mounting plate 61 corresponding to the first side of the locator body 101, and the mounting plate 61 corresponding to the second side of the locator body 101 Three adjustment holes 62 are also opened at the position, and each adjustment hole 62 is set on the vehicle positioning part 300 of the power exchange equipment through fasteners. In this embodiment, the fasteners are bolts. By arranging a plurality of adjustment holes 62 on the mounting plate 61 , the fixing effect of the positioning member body 101 can be made more stable, and the positioning member 100 can be prevented from shifting or rotating under conditions such as bumps and impacts. At the same time, when it is found that the locator 100 cannot be inserted between the battery pack and the vehicle body bracket 400 due to deviation, the bolts can be loosened first, and after the locator body 101 is adjusted to a suitable position, the bolts are tightened to fix the locator body. 101 positioning is all that is needed to realize the position adjustment of the positioning member body 101 relative to the secondary lock 210 in the horizontal direction. The adjustment process is relatively simple, ensuring that the positioning member body 101 can be smoothly inserted into the battery pack and the body bracket 400 when unlocking or locking. between.

In other specific embodiments, the number of adjustment holes 62 can also be two, three, four or even more, or these adjustment holes 62 can also be arranged on the same side of the locator body, as long as the locator body can be 101 is fixed on the vehicle positioning part 300 through the installation structure and can realize the position adjustment in the horizontal direction, which will not be repeated here.

In order to facilitate assembly, the positioning element body 101 of the positioning element 100 is integrally formed with the installation structure. Of course, an embodiment in which the positioning element body 101 and the installation structure are separated is also possible.

As shown in Figures 1-4, in this embodiment, the receiving port 3 is provided with a detection port 4 recessed toward the positioning member body 101, and the inner wall 32 of the receiving area 31 includes a bottom wall 322 and a side wall 321. The opening 4 is disposed on the bottom wall 322 at a position corresponding to the travel path of the secondary lock 210 , and the detection element 5 is disposed in the detection opening 4 for measuring the distance between the secondary lock 210 and the detection element 5 .

When the secondary lock 210 enters the accommodation area 31 , the detection element 5 measures the distance between the detection element 5 and the secondary lock 210 . Since the accommodation area 31 needs to accommodate the secondary lock 210 during the detection process, the upper surface of the detection element 5 does not protrude from the inner wall 32 of the accommodation port 3, that is, the detection element 5 is completely located in the detection port 4, so as to avoid the detection element 5 and the two locks. The lock base of the primary lock 210 collides, which can effectively prevent the detection element 5 from being damaged due to excessive displacement of the secondary lock 210 when the detection element 5 fails. That is to say, at least when the secondary lock 210 is displaced to the bottom wall 322 of the accommodating opening 3 , the detection element 5 will not be impacted or squeezed. In this embodiment, the detection element 5 is a Hall sensor, and the secondary lock 210 is provided with a magnet. In other specific implementation manners, the secondary lock 210 may not be provided with a magnet, but made of magnetic materials. The Hall sensor matched with the secondary lock 210 is used to obtain the distance between the detection element 5 and the secondary lock 210 in real time, and then can determine whether the secondary lock 210 and the positioning member 100 have reached a stable mating state.

The detection principle is as follows: when the magnetic steel is close to or far away from the Hall sensor, the Hall sensor can determine the distance between the magnetic steel and the Hall sensor according to the change of the magnetic induction intensity, and judge the secondary lock 210 and the positioning member 100 based on this. Whether it has been matched in place.

Those skilled in the art should understand that the position and type of the detection element 5 are related to the detection method. For different detection requirements, those skilled in the art may adopt different detection methods, and also use different types of detection elements 5 , or arrange them in different positions.

As shown in Figure 2, in this embodiment, a specific structure is given for the secondary lock 210 on the vehicle. The movable end 212 a of the lock tongue 212 , that is, the protruding end of the secondary lock tongue 212 , is used to open the passage for the lock shaft 550 of the battery pack to enter and exit the secondary lock groove 211 .

The secondary lock 210 cooperates with the positioning member 100 to realize the unlocking process of the secondary lock 210 as follows:

At this time, the lock shaft 550 of the battery pack is located in the secondary lock groove 211 of the secondary lock 210 , the bottom of the secondary lock 210 enters the accommodation area 31 during the matching process, and the positioning member 100 after the secondary lock 210 enters the accommodation area 31 , Lift up the movable end 212a of the secondary lock tongue 212. At this time, the secondary lock tongue 212 turns around the shaft end 212b, thereby opening the opening of the secondary lock groove 211, and completing the unlocking process of the secondary lock 210, so that the lock of the battery pack The shaft 550 can be disengaged from the opening of the secondary lock slot 211 , finally realizing the separation of the battery pack from the vehicle body bracket 400 .

The secondary lock 210 cooperates with the positioning member 100 to realize the locking process of the secondary lock 210 as follows:

At this time, the lock shaft 550 of the battery pack is located outside the secondary lock groove 211 of the secondary lock 210, and the bottom of the secondary lock 210 enters the accommodation area 31 during the matching process. After the secondary lock 210 enters the accommodation area 31, the positioning member 100, Lift up the movable end 212a of the secondary lock tongue 212, at this time the secondary lock tongue 212 turns around the shaft end 212b, thereby opening the opening of the secondary lock slot 211, so that the lock shaft 550 of the battery pack can be released from the secondary lock slot 211 The opening of the battery pack enters into the secondary locking groove 211, and finally realizes locking the battery pack on the body bracket 400 of the vehicle.

Example 2

As shown in Figure 5, this embodiment provides a power exchange device with a structure similar to that of Embodiment 1, and its overall structure and function are basically the same as those of the power exchange device in Embodiment 1, the difference being:

In this embodiment, the detection element 5 needs to be connected to the control unit in the substation through a circuit, so the positioning member body 101 of the positioning member 100 is provided with a cable hole 7 communicating with the detection port 4, and the cable hole 7 is used for detection. The signal line 8 of the element 5 passes through. Specifically, there are two wiring holes 7 , and the wiring holes 7 are opened on the side wall of the detection port 4 , and the two wiring holes 7 are respectively located on both sides of the detection element 5 .

Considering the requirements of circuit wiring, while not affecting the structural strength of the positioning member 100, in this embodiment, a through hole 7 is provided on the side wall of the detection port 4, so that the signal line 8 can pass through the row from the detection port 4. The wire hole 7 leads to the outside of the positioning member 100 . And because in this embodiment, the sidewalls on both sides of the detection port 4 are provided with cable holes 7, the engineer can choose any cable hole 7 to pass through the signal line 8 according to different circuit layouts during on-site installation. That is, the signal wires 8 are arranged from different directions, which is convenient for electrical engineers to wire. At the same time, the opening of the cable hole 7 can make it unnecessary to purchase additional cable ties for positioning the signal wires 8 during on-site installation.

In other specific embodiments, the cable hole 7 can also be provided only on the side wall of one side of the detection port 4 , which can also play the role of accommodating the signal line 8 of the detection element 5 , which will not be repeated here.

Example 3

This embodiment provides a power exchange device with a structure similar to that of Embodiment 1 or 2. Its overall structure and function are basically the same as those of the power exchange device in Embodiment 1 or 2. The difference lies in:

In this embodiment, as shown in FIG. 2 and FIG. 6 , the receiving port 3 has an opening end for the positioning matching piece to enter the receiving port 3 , and the inner wall 32 of the receiving port 3 is provided with two oppositely disposed near the opening end of the receiving port 3 . Two first slopes 91, along the direction in which the second end of the positioning member body 101 points to the first end of the positioning member body 101 (that is, the vertical upward direction in FIG. 6 ), the two first slopes 91 gradually move away. The connection between the first slope 91 and the first end of the positioning element body 101 (the upper end of the positioning element body 101 in FIG. 6 ) makes a smooth transition.

Specifically, the upper edge of the inner wall 32 of the receiving opening 3 in this embodiment, that is, the upper edge of the side wall 321 of the receiving opening 3 of the positioning member 100 has a first slope 91 . And the first inclined surface 91 is inclined towards the outside of the receiving opening 3 and is arranged obliquely upward. The above-mentioned structure can play a guiding role when the matching part is positioned to enter the receiving area 31 . When there is a slight error in the initial position of the positioning matching part, the first slope 91 can smoothly guide it into the receiving area 31 .

In this embodiment, the connection between the first slope 91 and the upper end of the positioning member 100 is smoothly transitioned, and the transition area is rounded. During the process of guiding and positioning the matching parts at the upper end of the positioning part 100, the rounded transition area 93 further reduces the requirements for positioning accuracy, and at the same time can minimize the wear of the positioning part 100 and the positioning matching part, and prolong the use of the positioning part 100 life.

In order to make the positioning member 100 more smoothly enter between the battery pack and the vehicle body bracket 400 during the locking and unlocking process, as shown in FIG. A second slope 92 is provided, and the plane where the second slope 92 is located is inclined relative to the plane where the positioning member 100 is located. Specifically, along the opening direction of the receiving port 3 , the two second slopes 92 are gradually approached.

In this embodiment, due to the different sizes of the battery packs and the different placement positions of the batteries, the positioning member 100 may collide with the battery pack or the body bracket 400 when the positioning member 100 and the positioning matching member are approaching each other, and the second slope 92 can effectively guide the positioning member 100 to avoid the battery pack or the body bracket 400, thereby greatly reducing the requirements for positioning accuracy. , play a guiding role.

Example 4

This embodiment provides a power exchange device with a structure similar to that of any one of embodiments 1 to 3, and its overall structure and function are basically the same as those of any power exchange device in embodiments 1 to 3, the difference being:

The detection element 5 in this embodiment is disposed on the side wall 321 of the accommodation area 31 instead of the bottom wall 322 . The detection element 5 is used to measure whether the positioning matching part is matched with the positioning part 100 or not. Specifically, the detection port 4 is also disposed on the side wall 321 and the detection element 5 is completely accommodated in the detection port 4 .

The detection element 5 of the present embodiment judges the principle of whether the positioning matching part and the positioning part are matched in place as follows:

When the positioning matching piece enters the accommodation area 31, the detection element 5 on the side wall 321 detects whether the front of the detection element 5 is blocked by the positioning matching piece, and if it is blocked, the detection element 5 is triggered. Fit in place.

In this embodiment, the detection element 5 is a photoelectric sensor, and the photoelectric sensor is an infrared sensor. When the positioning matching part reaches the preset position, the photoelectric sensor is just blocked, and the photoelectric sensor can judge based on this that the positioning matching part is in place. Apparently, in order to realize the above functions, the photoelectric sensor in this embodiment needs to be arranged on the side wall 321 of the receiving area 31 corresponding to the position where the positioning matching part and the positioning part 100 are in place. Usually, a test is required after installation to verify whether there is a situation where the positioning matching part cannot be detected. Within the allowable range of error, a slight adjustment can be made to improve the detection success rate of the photoelectric sensor.

In other embodiments, the detection element 5 may also be a visual sensor, a laser sensor or other photoelectric sensors, which will not be repeated here.

Example 5

As shown in Figure 8, this embodiment provides an unlocking method for a battery replacement device, which is used to replace the battery of a vehicle. The positioning part, the vehicle positioning part 300 is used for positioning between the power exchange equipment and the vehicle. The vehicle positioning part 300 of the power exchange equipment is also provided with an unlocking mechanism. The unlocking mechanism includes an unlocking part 600, that is, the unlocking part 600 and the positioning part 100 are all arranged on the vehicle positioning unit 300 . The locking mechanism on the body frame 400 of the vehicle includes not only the secondary lock 210 but also a primary lock 500 , and the unlocking member 600 is used to unlock or lock the primary lock 500 .

Specifically, as shown in FIG. 7 , the primary lock 500 includes a primary lock slot 530 , a primary lock tongue 540 and a lock link 520 connected with the primary lock tongue 540 . The unlocking part 600 cooperates with the unlocking block 510 on the lock link 520 to drive the first-level deadbolt 540 to open or lock the opening of the first-level lock groove 530 to realize the unlocking or locking of the first-level lock 500. The first-level deadbolt 540 and The lock link 520 is connected, and the lock link 520 is pushed up by the top of the unlocking member 600 to drive the primary lock tongue 540 to unlock. As shown in Figures 2 and 3, the secondary lock 210 includes a secondary lock groove 211 and a secondary lock tongue 212, and the upper end of the locator 100 acts on the movable end 212a of the secondary lock tongue 212 of the secondary lock 210, that is, the two The protruding end of the secondary deadbolt 212 is unlocked in the form of driving the secondary deadbolt 212 to rotate.

In the locked state, the plurality of lock shafts 550 on the battery pack are correspondingly limited in the primary lock slots 530 or the secondary lock slots 211 at corresponding positions.

As shown in Figure 8, the unlocking method in this embodiment includes the following steps:

S1: Adjust the horizontal position of the power exchange equipment relative to the vehicle, so that the accommodating area 31 of the positioning piece is aligned with the positioning matching piece on the vehicle. In this embodiment, the positioning matching piece is the secondary lock 210;

In the above step S1, by adjusting the position of the vehicle positioning part 300 relative to the vehicle along the length direction of the electric vehicle, the unlocking member 100 on the vehicle positioning part 300 corresponds to the unlocking block 510 of the primary lock 500, and the vehicle positioning part The accommodating area 31 of the positioning member 100 on the 300 is aligned with the secondary lock 210 on the vehicle body bracket 400, so as to improve the unlocking success rate of the unlocking mechanism.

Wherein, _the detection element in step S2 detects whether the secondary lock ₂₁₀ and the locating member are in place. within the distance.

The unlocking method in this embodiment can ensure that the unlocking process of the primary lock 500 and the secondary lock 210 starts only when the secondary lock 210 and the positioning member 100 are in place, so as to achieve the purpose of reliable unlocking.

Further, since the frame size, height, and position of different models may vary, it is necessary to set a preset distance range L ₀ for the distance between the detection element and the secondary lock 210 . When the distance L ₁ between the detection element and the secondary lock 210 is within the preset distance range, that is, L ₁ ≤ L ₀ , it can be considered that the positioning member 100 and the secondary lock 210 are in a mated state, thereby ensuring subsequent unlocking operations Success rate. For example, the preset distance range L ₀ is 10 mm. During the process of the secondary lock 210 and the positioning member 100 constantly approaching each other, the detection element continuously detects the distance L ₁ between the detection element and the secondary lock 210, and judges L ₀ in real time. The relationship with the size of L ₁ , when the L ₁ = 9.5mm acquired by the detection element at a certain moment, and the result of L ₁ ≤ L ₀ is obtained in the first judgment, then it is considered that the secondary lock 210 and the positioning member 100 are in place , and stop adjusting the positions of the secondary lock 210 and the positioning member 100 in the height direction, and start to unlock the battery pack.

Further, as shown in Figure 8, in this embodiment, the unlocking operation in step S2 includes the following steps:

S31: The battery replacement device drives the battery pack to move a first distance away from the opening of the first-level lock groove 530, so that there is a gap between the first-level lock tongue 540 and the lock shaft 550 of the battery pack;

S32: After the battery replacement device drives the battery pack to move a second distance toward the opening of the first lock slot, the battery pack falls off from the vehicle.

Further, after the power exchange device in step S31 drives the battery pack to move a first distance away from the opening of the first-level lock slot 530, the steps further include:

S311 : The unlocking member 600 pushes up the lock link 520 , and the lock link 520 drives the primary lock tongue 540 to move and open the primary lock slot 530 .

In this embodiment, before unlocking, step S31 is carried out to realize that the power exchange device first drives the battery pack to move the first distance away from the opening direction of the first-level lock slot 530, that is, to realize the pre-push of the lock shaft 550 of the battery pack, so that the battery pack The upper lock shaft 550 is separated from the first-level lock tongue 540 to prevent the two from being abutted against each other when unlocking and thus being worn out. Then in step S311, since the unlocking member 600 has jacked up the lock link 520 at this time, the first-level deadbolt 540 rotates upwards after losing the power of the lock shaft 550 to stop its rotation after step S31, and opens the opening of the first-level lock groove 530 , and finally through step S32 to realize that the power exchange equipment drives the battery pack to move a second distance toward the opening of the first-level lock slot 530. At this time, the lock shaft 550 of the battery pack moves above the opening of the first-level lock slot 530. The lock groove 530 no longer provides support for the lock shaft 550, so the battery pack falls off the vehicle under the action of gravity. At this point, the battery pack to be unlocked is separated from the vehicle, and the entire unlocking process is completed. The unlocking process of the secondary lock 210 and the positioning member 100 is consistent with the unlocking process of the primary lock 500 and the unlocking member 600 .

In this embodiment, the unlocking member 600 includes an unlocking push rod and a spring, and the direction in which the spring is compressed is opposite to the direction in which the locking link 520 is pushed up. Based on the above configuration, during the process of the unlocking push rod pushing up the lock link 520, the spring is always in a compressed state.

Further, when the detection element detects that the positioning matching part is in place with the positioning part in step S2, the unlocking push rod is in a pressed state.

That is to say, when the positioning member 100 and the secondary lock 210 have not been mated in place, the unlocking push rod has already entered the pressed state in advance. Therefore, before unlocking, the unlocking push rod is compressed and stored to ensure the success rate of unlocking, and at the same time, wear between the primary lock tongue 540 and the lock shaft 550 , and the secondary lock tongue 212 and the lock shaft 550 can be avoided.

Example 6

As shown in FIG. 9 , this embodiment provides an unlocking method for a battery swapping device, which is used to replace a battery of a vehicle, and is applicable to the battery swapping device in Embodiment 4 of the present invention.

Since the power exchange equipment in Embodiment 4 of the present invention is substantially the same as the power exchange equipment in Embodiments 1-3, the unlocking method of the power exchange equipment in this embodiment is also approximately the same as that in Embodiment 5. at:

In step S2, the detection element detects whether the positioning matching part and the positioning part are in place. The specific steps are: acquiring the state of the detection element, and judging whether the detection element is in a triggered state.

Since the sensors have different working principles and different installation positions, the specific steps of detecting whether the positioning matching part and the positioning part are matched in place in this embodiment are adjusted according to the working principle of the sensor.

In Embodiment 4 of the present invention, when the detection element is installed on the side wall 321, it is used to determine whether the secondary lock 210 blocks the detection element as the basis for judging whether the positioning member and the secondary lock 210 are in place.

Example 7

Embodiment 7 discloses another specific implementation of the power exchange equipment. Its overall structure and function are basically the same as those of the power exchange equipment in Embodiments 1 to 4. The difference lies in:

In this embodiment, the positioning piece 100 is arranged on the battery positioning part, and the secondary lock 210 used in conjunction with the positioning piece 100 is not the secondary lock 210, but the positioning block on the battery pack. The positioning block is a square shape and is located on the side of the battery pack. The part is located between the side part of the battery pack and the frame 400 of the vehicle body.

During the unlocking process and locking process of the locking mechanism realized by the cooperation of the positioning block and the positioning piece 100, when the vertical height of the positioning piece 100 and the positioning block is in place, the locking mechanism can be unlocked or locked. , the specific unlocking or locking process is the same as that of Embodiments 1 to 4, and will not be repeated here.

The unlocking method of the battery replacement device in this embodiment can also be divided into two types according to the different positions of the detection elements and the different working principles, which correspond to the examples of embodiment 5 or embodiment 6 respectively, and will not be repeated here.

Although the specific implementations of the present invention have been described above, those skilled in the art should understand that these are only examples, and various changes or changes can be made to these implementations without departing from the principle and essence of the present invention. Revise. Accordingly, the protection scope of the present invention is defined by the appended claims.

Claims

A positioning part, which is arranged on the battery exchange equipment, and is used for positioning between the battery exchange equipment and the electric vehicle when the battery exchange equipment replaces the battery of the electric vehicle. The electric vehicle is provided with a positioning matching part, and the positioning part It includes a locator body, and an accommodation area is opened on the locator body, and it is characterized in that it also includes:

The detection element is arranged in the accommodation area, and the detection element is used for detecting whether the positioning part and the positioning matching part are in place when the battery replacement equipment replaces the battery of the electric vehicle.
The positioning member according to claim 1, characterized in that:

The positioning member body is provided with a mounting structure, and the positioning member is installed on the power exchange equipment through the mounting structure;

Wherein, at least one position adjustment mechanism is provided on the installation structure, and the position adjustment mechanism is used to adjust the relative position of the positioning component body relative to the positioning matching component in the horizontal direction.
The positioning member according to claim 2, characterized in that:

The position adjustment mechanism is an adjustment hole opened on the installation structure, the extension direction of the adjustment hole is a direction perpendicular to the vertical plane where the positioning matching part is located, and the adjustment hole is arranged on the on the power changing device.
The positioning member according to claim 3, characterized in that:

The mounting structure is a mounting plate, and the end of the locator body away from the accommodation area is connected to the mounting plate;

There are at least two adjustment holes and they are respectively located on two sides of the positioning member body.
The positioning member according to any one of claims 1-4, characterized in that:

The first end of the locator body is provided with an accommodating opening sunken toward the inside of the locator body for accommodating the locating matching piece, and the second end of the locator body is disposed on the power exchange device;

The receiving opening constitutes the receiving area.
The positioning member according to claim 5, characterized in that:

A detection port recessed toward the body of the locator is provided in the receiving port, and the detection port is used for accommodating the detection element.
The positioning member according to claim 6, characterized in that:

The surface of the detection element does not protrude from the inner wall of the accommodation opening.
The positioning member according to claim 6 or 7, characterized in that:

The body of the locator is provided with a cable hole communicating with the detection port, and the cable hole allows the signal line of the detection element to pass through.
The positioning member according to claim 8, characterized in that:

There are two wiring holes, the wiring holes are opened on the side wall of the detection port, and the two wiring holes are respectively located on both sides of the detection element.
The positioning member according to any one of claims 5-9, characterized in that:

The accommodating opening has an opening end for the positioning matching piece to enter the accommodating opening, and the inner wall of the accommodating opening is provided with two opposite first inclined surfaces near the opening end;

Along the direction in which the second end of the positioning element body points to the first end of the positioning element body, the two first inclined surfaces gradually move away from each other.
The positioning member according to claim 10, characterized in that:

The connection between the first slope and the first end of the positioning member body is smoothly transitioned.
The positioning member according to any one of claims 10-11, characterized in that:

The first end of the locator body is provided with a second slant on both sides of the first slant, and the plane of the second slant is inclined relative to the plane of the locator body.
The positioning member according to any one of claims 1-12, characterized in that:

The receiving area includes a bottom wall and a side wall, and the detection element is arranged on the bottom wall for measuring the distance between the positioning matching part and the detection element; and/or

The detection element is arranged on the side wall, and when the positioning matching part fits in place with the positioning part, the detection element is in a triggered state; and/or

The detection element includes at least one of a visual sensor, a Hall sensor or a photoelectric sensor; and/or

The positioning matching part is a positioning block or a secondary lock of the battery pack.
A battery swapping device, comprising a vehicle positioning unit and a battery positioning unit, the vehicle positioning unit is used for positioning between the battery swapping device and the vehicle, and the battery positioning unit is used to carry a battery pack and drive the battery pack to move, characterized in that the The vehicle positioning part is provided with the positioning piece according to any one of claims 1-13.
An unlocking method using a power exchange device according to claim 14, for realizing battery replacement of a vehicle, comprising the following steps:

S1: Adjust the position of the battery replacement equipment relative to the vehicle in the horizontal direction, so that the accommodation area of the positioning part is aligned with the positioning matching part on the vehicle;

S2: Adjust the position of the battery replacement device relative to the vehicle in the height direction, and detect whether the positioning matching part and the positioning part are in place through the detection element, and if so, perform the unlocking operation of the battery replacement device.
The unlocking method according to claim 15, characterized in that:

The step in which the detection element in the step S2 detects whether the positioning matching part and the positioning part are in place is specifically:

The detection element obtains the relative distance L 1 between it and the positioning matching part, and judges whether the relative distance L 1 is within a preset distance range.
The unlocking method according to claim 15 or 16, characterized in that:

The step in which the detection element in the step S2 detects whether the positioning matching part and the positioning part are in place is specifically:

Obtain the state of the detection element, if the detection element is in a triggered state.
The unlocking method according to any one of claims 15-17, characterized in that:

The vehicle is provided with a primary lock, the primary lock has a primary lock groove and a primary lock tongue, and the unlocking operation in the step S2 includes:

S31: The battery replacement device drives the battery pack to move a first distance away from the opening of the primary lock slot, so that there is a gap between the primary lock tongue and the lock shaft of the battery pack; and/or

S32: After the battery replacement device drives the battery pack to move a second distance toward the opening of the primary lock slot, the battery pack falls off the vehicle.
The unlocking method according to claim 18, characterized in that:

The power exchange equipment includes an unlocking member, and the primary lock has a lock connecting rod connected with the primary lock tongue, and the lock connecting rod is used to drive the primary lock tongue to open or lock the opening of the primary lock slot, so After the battery replacement device in step S31 drives the battery pack to move the first distance away from the opening of the first-level lock slot, it includes:

S311: The unlocking piece pushes up the lock connecting rod, and the lock connecting rod drives the primary lock tongue to move and open the opening of the primary lock slot.
The unlocking method according to any one of claims 15-19, characterized in that:

When the detecting element detects that the positioning matching part and the positioning part are in place in step S2, the unlocking part is in a pressed state.