WO2023125705A1

WO2023125705A1 - Liquid cooling connecting apparatus having floating function, electric boat, and boat battery swapping station

Info

Publication number: WO2023125705A1
Application number: PCT/CN2022/142962
Authority: WO
Inventors: 张建平; 陈亚东; 仇丹梁; 黎明
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: 2021-12-31
Filing date: 2022-12-28
Publication date: 2023-07-06
Also published as: CN115284970A

Abstract

A liquid cooling connection apparatus (100) having a floating function, comprising a fixed base (11), a floating mechanism (20), and an alignment mechanism (30); the floating mechanism (20) is movably arranged on the fixed base (11); a pipeline connector (12) used for being connected to a liquid cooling connector on a battery is fixedly arranged on the floating mechanism (20); the pipeline connector (12) is arranged in communication with the liquid supply apparatus; the alignment mechanism (30) is arranged between the floating mechanism (20) and the fixed base (11) along the floating direction of the floating mechanism (20), and is used for causing the pipeline joint (12) to move in the plane where the pipeline joint (12) is located so as to be aligned opposite to the liquid cooling joint on a battery case when liquid cooling connection is performed. In the connection process of the pipeline connector (12), the alignment mechanism (30) can enable the pipeline connector (12) to move in a plane, thereby facilitating the alignment and connection of the pipeline connector (12) and the liquid cooling connector; thus lateral deviation of the pipeline connector (12) and leakage are prevented, thereby improving the accuracy and reliability of the pipeline connector (12). Also provided are an electrically powered boat and a boat battery swapping station having the liquid cooling connection apparatus (100).

Description

Liquid-cooled connections with floating capabilities, electric ships and marine power stations

This application claims the priority of Chinese patent application 2021116678768 with a filing date of 2021/12/31. This application cites the full text of the above-mentioned Chinese patent application.

technical field

The invention relates to the field of electric ships, in particular to a liquid cooling connection device with a floating function, an electric ship and a ship power station.

Background technique

An electric ship is a type of electric vehicle, which can be propelled by electric power generated by a battery box or a marine generator.

For electric ships using battery boxes, the battery boxes of electric ships are generally divided into fixed type and replaceable type. Among them, the fixed type batteries are generally fixed on the ship, and the ship is directly used as the charging object when charging. The replaceable battery box is generally fixed on the ship by means of movable installation. The battery case can be removed for replacement or charging of the battery case alone. After the replaced battery box is fully charged, it is reinstalled on the ship.

The replaceable battery box is usually equipped with a cooling pipe, which is connected to the cooling system on the electric ship or the ship's power station, and uses the circulation of the cooling liquid to achieve the heat balance of the battery box.

At present, the cooling pipe on the replaceable battery box is rigidly connected to the electric ship or the ship's power station. Due to various effects such as frequent replacement and hull vibration, floating often occurs, resulting in unstable connection of the cooling pipe, which may lead to disconnection of the cooling pipe, resulting in leakage of coolant.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the above-mentioned defect that the cooling pipe of the replaceable battery box in the electric ship in the prior art is easy to leak, and to provide a liquid cooling connection device with a floating function, an electric ship and a ship replacement station .

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

A liquid cooling connection device with a floating function, used to realize the communication between the liquid supply device with cooling liquid and the liquid cooling pipeline in the battery box, so that the cooling liquid flows into the liquid cooling pipeline in the battery box Among them, the liquid cooling connection device includes: a fixed base, a floating mechanism and an alignment mechanism. A pipeline joint connected to the cold joint, the pipeline joint is connected to the liquid supply device; the alignment mechanism is arranged between the floating mechanism and the fixed base along the floating direction of the floating mechanism The space is used to move the pipeline joint in its plane so that it is opposite to the liquid cooling joint on the battery box when the liquid cooling connection is performed.

In this solution, by setting the floating mechanism to move relative to the fixed base, the pipeline structure and the floating mechanism are relatively fixed, so that the pipeline joints can follow the floating mechanism to move relative to the fixed base, which is convenient for docking with the liquid cooling pipeline, avoiding the Rigid connection of road joints. During the connection process of the pipeline joint, the alignment mechanism can make the pipeline joint move in the plane, so as to facilitate the alignment of the pipeline joint and the liquid cooling joint, and then facilitate the connection between the pipeline joint and the liquid cooling joint, avoiding the side To offset, improve the stability of pipeline joints, avoid leakage of pipeline joints, thereby improving the accuracy and reliability of pipeline joints.

Preferably, the floating mechanism includes a mounting plate for mounting the pipeline joint and is arranged parallel to the fixed base, and a plurality of shafts are arranged through the mounting plate and the fixed base to make the two relatively fixed A rod and a plurality of floating elastic parts sleeved on the shaft and sandwiched between the installation plate and the fixed base, the installation plate is provided with a predetermined position corresponding to the shaft The shaft rod is provided with a limiting boss at a position inside the mounting plate, and the floating elastic member is sandwiched between the fixed base and the adjacent limiting boss.

In this solution, one end of the shaft is set on the fixed base, the other end of the shaft is inserted into the through hole of the mounting plate, and the floating elastic part is clamped between the limiting boss of the shaft and the fixed base to make the floating elastic The component can exert elastic force on the mounting plate through the limiting boss, and then the floating elastic component can make the mounting plate move away from the fixed base, so as to realize the floating of the mounting plate relative to the fixed base.

Preferably, the diameter of the through hole is set larger than the outer diameter of the shaft, and the shaft is provided with a limit stop ring at a position outside the mounting plate, and the alignment mechanism includes a An abutment ring that is close to one end of the limit stop ring in the through hole and surrounds the shaft, and a pagoda spring sandwiched between the abutment ring and the limit boss.

In this solution, the two ends of the pagoda spring are respectively against the abutment ring of the shaft rod and the limit boss of the mounting plate, so that the mounting plate can be driven to achieve alignment with respect to the shaft rod, and the alignment of the pipeline joint on the mounting plate can be realized. Adjust the position of the mounting plate to avoid the offset of the mounting plate relative to the shaft, thereby making the position of the pipeline joint relatively stable, avoiding the lateral deviation of the pipeline joint, improving the stability of the pipeline joint, and avoiding the Leakage occurs, which can improve the reliability of pipeline joints.

Preferably, the pagoda spring is in the shape of a pagoda, which has a top end surface with the smallest diameter and a bottom end surface with the largest diameter, the bottom end surface abuts against the abutment ring, and the top end surface abuts against the limiting Boss.

In this solution, the small end of the pagoda-shaped spring is fixedly arranged relative to the fixed base, and the large end of the pagoda-shaped spring is fixedly arranged relative to the floating mechanism, so that when the floating mechanism deviates, the large end of the pagoda-shaped spring moves with the floating mechanism , so that the pagoda-shaped spring deforms perpendicular to its own axis, and then the pagoda-shaped spring can generate a reset force to drive the floating mechanism to reset and avoid the deflection of the floating mechanism.

Preferably, the distance between the limit stop ring and the limit stop boss is set larger than the thickness of the installation plate, and the installation plate is made to abut against the limit stop ring in the initial state to Keep the tubing connectors level.

In this solution, the distance between the limit stop ring and the limit boss is set larger than the thickness of the installation plate, so that the installation plate can move freely between the limit stop ring and the limit boss. In the initial state, the mounting plate abuts against the limit stop ring, which can make the pipeline joints in a horizontal state and avoid skewing of the pipeline joints.

Preferably, the limiting boss is integrally formed on the shaft, and/or the abutment ring is integrally formed in the through hole of the mounting plate.

In this solution, the limiting boss is integrally formed on the shaft, so the structure is simple and reliable. The abutting ring is integrally formed in the through hole of the mounting plate, which is convenient for processing and manufacturing.

Preferably, there are three pipe joints, which are water inlets, water outlets and fire exits, and multiple shafts of the floating mechanism are uniformly arranged on the peripheral side of the pipe joints.

In this solution, the water inlet and the water outlet can realize the circulating flow of cooling liquid. The fire exit can deal with sudden fire incidents. A plurality of shaft rods are evenly arranged on the peripheral side of the pipeline joint, which facilitates better alignment of the pipeline joint.

Preferably, the number of shafts in the floating mechanism is six, which are respectively arranged at the middle position and four corner positions of the upper and lower sides of the installation plate along the length direction, and the alignment mechanism is arranged at least It is located on the shaft at the four corner positions and in the through hole.

In this solution, the position setting of the shaft is more reasonable.

An electric ship includes the above-mentioned liquid cooling connection device.

When the liquid supply device of the electric ship is connected to the liquid-cooled pipeline in the battery box through the liquid-cooled joint of the above-mentioned liquid-cooled connection device, the liquid-cooled joint is accurately connected to the liquid-cooled pipeline by moving the liquid-cooled joint in its plane, Furthermore, the communication of the liquid cooling pipeline can avoid the lateral deviation of the pipeline joint, improve the stability of the pipeline joint, avoid the leakage of the pipeline joint, and thus improve the reliability of the pipeline joint.

A ship power station, which includes the above-mentioned liquid cooling connection device.

When the liquid supply device of the ship exchange station is connected to the liquid cooling pipeline in the battery box through the liquid cooling joint of the above liquid cooling connection device, the liquid cooling joint is accurately docked with the liquid cooling pipeline by moving the liquid cooling joint in its plane , and then connect the liquid-cooled pipelines, which can avoid the lateral deviation of the pipeline joints, improve the stability of the pipeline joints, avoid leakage of the pipeline joints, and thus improve the reliability of the pipeline joints.

On the basis of conforming to common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain preferred examples of the present invention.

The positive progress effect of the present invention is:

In the present invention, the floating mechanism is set to move relative to the fixed base, and the pipeline structure and the floating mechanism are relatively fixed, so that the pipeline joint can follow the floating mechanism to move relative to the fixed base, which is convenient for docking with the liquid cooling pipeline, and avoids the failure of the pipeline joint. Rigid connection. During the connection process of the pipeline joint, the alignment mechanism can make the pipeline joint move in the plane, so as to facilitate the alignment of the pipeline joint and the liquid cooling joint, and then facilitate the connection between the pipeline joint and the liquid cooling joint, avoiding the side To offset, improve the stability of pipeline joints, avoid leakage of pipeline joints, thereby improving the accuracy and reliability of pipeline joints.

Description of drawings

Fig. 1 is a schematic structural diagram of a liquid cooling connection device according to a preferred embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a cross-sectional view of the liquid-cooling connection device in FIG. 1 .

FIG. 3 is a partially enlarged structural schematic diagram of the liquid cooling connection device in FIG. 2 .

FIG. 4 is a schematic structural diagram of a mounting plate in the liquid cooling connection device in FIG. 1 .

FIG. 5 is a structural schematic diagram of a cross-sectional view of the mounting plate in FIG. 4 .

Explanation of reference signs:

Liquid cooling connection device 100

Fixed base 11

Pipeline connector 12

floating mechanism 20

Mounting plate 21

Shaft 22

floating elastic 23

Through hole 24

Limit boss 25

Limit stop ring 26

Counterpoint mechanism 30

Abutment ring 31

Pagoda Spring 32

Detailed ways

In the following, the present invention will be more clearly and completely described by means of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

As shown in Figures 1 to 5, this embodiment is a liquid cooling connection device 100 with a floating function, which is used to realize the communication between the liquid supply device with cooling liquid and the liquid cooling pipeline in the battery box, so that the cooling The liquid flows into the liquid cooling pipeline in the battery box. The liquid cooling connection device 100 includes: a fixed base 11, a floating mechanism 20 and an alignment mechanism 30. The floating mechanism 20 is movably arranged on the fixed base 11, and the floating mechanism 20 is fixed with The pipeline joint 12 connected to the liquid cooling joint on the battery box is connected to the liquid supply device; the alignment mechanism 30 is arranged on the floating mechanism 20 and the fixed base 11 along the floating direction of the floating mechanism 20 Between them, it is used to move the pipeline joint 12 in its plane so that it is opposite to the liquid cooling joint on the battery box when the liquid cooling connection is made. By setting the floating mechanism 20 to move relative to the fixed base 11, the pipeline structure and the floating mechanism 20 are relatively fixed, so that the pipeline joint 12 can follow the floating mechanism 20 to move relative to the fixed base 11, which is convenient for docking with the liquid cooling pipeline, avoiding Rigid connection of pipe fittings 12. During the connection process of the pipeline joint 12, the alignment mechanism 30 can move the pipeline joint 12 in the plane, so as to facilitate the alignment between the pipeline joint 12 and the liquid-cooled joint, and then facilitate the connection between the pipeline joint 12 and the liquid-cooled joint. The lateral deviation of the pipeline joint 12 is avoided, the stability of the pipeline joint 12 is improved, and the leakage of the pipeline joint 12 is avoided, thereby improving the accuracy and reliability of the pipeline joint 12 .

The floating mechanism 20 includes a mounting plate 21 for installing the pipeline joint 12 and arranged parallel to the fixed base 11, a plurality of shafts 22 arranged through the mounting plate 21 and the fixed base 11 so that the two are relatively fixed, and sleeved on the shaft. 22 and a plurality of floating elastic members 23 sandwiched between the mounting plate 21 and the fixed base 11, the mounting plate 21 is provided with a through hole 24 of predetermined size at a position corresponding to the shaft 22, and the shaft 22 is located at A limiting boss 25 is disposed on the inner side of the mounting plate 21 , and the floating elastic member 23 is sandwiched between the fixed base 11 and the adjacent limiting boss 25 . One end of the shaft 22 is set on the fixed base 11, the other end of the shaft 22 is inserted into the through hole 24 of the mounting plate 21, and the floating elastic member 23 is sandwiched between the limiting boss 25 of the shaft 22 and the fixed base 11 , so that the floating elastic member 23 can apply elastic force to the mounting plate 21 through the limiting boss 25, and then the floating elastic member 23 can make the mounting plate 21 produce a tendency away from the fixed base 11, and realize the floating of the mounting plate 21 relative to the fixed base 11.

In this embodiment, the floating elastic member 23 may specifically be a spring, and the spring is in a compressed state. Both ends of the shaft 22 can be provided with threads, one end of the shaft 22 passes through the fixed base 11 , the other end of the shaft 22 passes through the through hole 24 , and two ends of the shaft 22 are screwed with nuts. The shaft 22 limits the maximum distance between the mounting plate 21 and the fixed base 11 through the nuts at both ends. After the external force is transmitted to the mounting plate 21 through the pipeline joint 12, the mounting plate 21 can compress the spring, thereby realizing the floating of the mounting plate 21.

The diameter of the through hole 24 is larger than the outer diameter of the shaft rod 22. The shaft rod 22 is provided with a limit stop ring 26 on the outside of the mounting plate 21. The alignment mechanism 30 includes a stop ring 26 located in the through hole 24. One end of the abutment ring 31 surrounding the shaft 22 and the pagoda spring 32 sandwiched between the abutment ring 31 and the limiting boss 25 . The two ends of the pagoda spring 32 are respectively against the abutment ring 31 of the shaft 22 and the limiting boss 25 of the mounting plate 21, so that the mounting plate 21 can be driven to achieve alignment with respect to the shaft 22, and the alignment of the pipeline joint 12 can be achieved. The position adjustment on the mounting plate 21 avoids the offset of the mounting plate 21 relative to the shaft rod 22, thereby making the position of the pipeline joint 12 relatively stable, avoiding the lateral deviation of the pipeline joint 12, and improving the position of the pipeline joint 12. The stability of the pipeline joint 12 can be avoided, and the reliability of the pipeline joint 12 can be improved.

The pagoda spring 32 is pagoda-shaped, and has a top surface with the smallest diameter and a bottom surface with the largest diameter. The small end of the pagoda-shaped spring is fixedly arranged with respect to the fixed base 11, and the large end of the pagoda-shaped spring is fixedly arranged with respect to the floating mechanism 20, so that when the floating mechanism 20 shifted, the large end of the pagoda-shaped spring moved with the floating mechanism 20, Thus, the pagoda-shaped spring deforms perpendicular to its own axis, and then the pagoda-shaped spring can generate a reset force to drive the floating mechanism 20 to reset and prevent the floating mechanism 20 from deflecting.

As an implementation, the pagoda spring 32 generally refers to a spring with a large end and a small end. From the large end of the spring to the small end, the diameter of the spring becomes gradually smaller.

The distance between the stop ring 26 and the stop boss 25 is greater than the thickness of the mounting plate 21 , and the mounting plate 21 abuts against the stop ring 26 in the initial state to keep the pipe joint 12 in a horizontal state. The distance between the limit stop ring 26 and the limit boss 25 is set larger than the thickness of the installation plate 21 , so that the installation plate 21 can move freely between the limit stop ring 26 and the limit boss 25 . In the initial state, the mounting plate 21 abuts against the stop ring 26, which can make the pipeline joint 12 in a horizontal state and avoid the pipeline joint 12 from being skewed.

As shown in FIG. 3 , the limiting boss 25 is integrally formed on the shaft 22 . The limiting boss 25 is integrally formed on the shaft rod 22, so the structure is simple and reliable.

As shown in FIG. 5 , the contact ring 31 is integrally formed in the through hole 24 of the mounting plate 21 . The abutment ring 31 is integrally formed in the through hole 24 of the mounting plate 21 , which is convenient for manufacturing.

There are three pipe joints 12 , which are water inlet, water outlet and fire exit respectively. A plurality of shafts 22 of the floating mechanism 20 are evenly arranged on the peripheral side of the pipe joint 12 . The water inlet and the water outlet can realize the circulating flow of the coolant. The fire exit can deal with sudden fire incidents. A plurality of shafts 22 are uniformly arranged on the peripheral side of the pipeline joint 12 to facilitate better alignment of the pipeline joint 12 .

In FIG. 1 , three pipeline connectors 12 are arranged in a straight line. In other embodiments, the number of pipeline connectors 12 can also be other values, and multiple pipeline connectors 12 can also be arranged in other forms.

The number of shaft rods 22 in the floating mechanism 20 is six, which are respectively arranged at the middle positions of the upper and lower sides of the mounting plate 21 along the length direction and the four end corner positions, and the alignment mechanism 30 is arranged at least at the four end corner positions On the upper shaft rod 22 and in the through hole 24. The position setting of the shaft rod 22 is more reasonable. In other embodiments, the number of shafts 22 may also be other values, and the plurality of shafts 22 may also be arranged in other forms.

This embodiment also discloses an electric ship, which includes the above liquid-cooled connection device 100 with a floating function. When the liquid supply device of the electric ship is connected to the liquid cooling pipeline in the battery box through the liquid cooling joint of the above liquid cooling connection device 100, the liquid cooling joint 12 is connected to the liquid cooling pipeline by moving the liquid cooling joint 12 in its plane. Accurate docking allows the liquid cooling pipeline to communicate, avoids the lateral deviation of the pipeline joint 12, improves the stability of the pipeline joint 12, avoids leakage of the pipeline joint 12, and thereby improves the reliability of the pipeline joint 12.

This embodiment also discloses a ship power station, which includes the above liquid cooling connection device 100 with a floating function. When the liquid supply device of the ship exchange station is connected to the liquid cooling pipeline in the battery box through the liquid cooling joint of the above liquid cooling connection device 100, the liquid cooling joint and the liquid cooling pipeline are accurately connected by moving the liquid cooling joint in its plane. The docking, and then the connection of the liquid cooling pipeline, can avoid the lateral deviation of the pipeline joint 12, improve the stability of the pipeline joint 12, prevent the pipeline joint 12 from leaking, and thereby improve the reliability of the pipeline joint 12.

As an implementation manner, the working process of the liquid cooling connection device 100 with a floating function can be described as follows. After the battery box is in place, the liquid cooling connecting device 100 moves toward the battery box, and the pipeline joint 12 is then close to the liquid cooling pipeline of the battery box. After the pipeline joint 12 and the liquid cooling pipeline are engaged in place, the liquid supply device The pipeline joint 12 communicates with the connecting valve on the battery box and opens the communication channel of the connecting valve, so that the cooling liquid can circulate between the battery box and the liquid supply device.

In the process of connecting the pipeline joint 12 and the liquid cooling pipeline, if the pipeline joint 12 and the liquid cooling pipeline are not centered, since the pipeline joint 12 is installed to the fixed base 11 through the floating mechanism 20, the initial contact between the two Under the pushing force, the position of the pipeline joint 12 can be floated relative to the fixed base 11 . The alignment mechanism 30 drives the axis of the pipeline joint 12 to be parallel to the axis of the shaft 22, that is, the axis of the pipeline joint 12 can be perpendicular to the side of the mounting plate 21, so that the pipeline joint 12 and the liquid cooling joint can be aligned. Furthermore, it is convenient for the pipeline joint 12 to be connected with the liquid cooling joint, the lateral deviation of the pipeline joint 12 can be avoided, the stability of the pipeline joint 12 can be improved, the leakage of the pipeline joint 12 can be avoided, and the pipeline joint 12 can be improved. reliability.

Although the specific implementation of the present invention has been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

A liquid cooling connection device with a floating function, used to realize the communication between the liquid supply device with cooling liquid and the liquid cooling pipeline in the battery box, so that the cooling liquid flows into the liquid cooling pipeline in the battery box Among them, it is characterized in that the liquid cooling connection device includes:

fixed base,

A floating mechanism, the floating mechanism is movably arranged on the fixed base, the floating mechanism is fixed with a pipeline joint for connecting with the liquid cooling joint on the battery box, the pipeline joint is connected with the The above-mentioned liquid supply device is connected and set;

Alignment mechanism, the alignment mechanism is arranged between the floating mechanism and the fixed base along the floating direction of the floating mechanism, and is used to make the pipeline joint in the plane where it is located when the liquid cooling connection is performed Move it so that it is opposite to the liquid cooling connector on the battery box.
The liquid-cooling connection device according to claim 1, wherein the floating mechanism includes a mounting plate for mounting the pipeline joint and parallel to the fixed base, passing through the mounting plate and the The fixed base is provided with a plurality of shafts that are fixed relative to each other and a plurality of floating elastic parts sleeved on the shafts and sandwiched between the mounting plate and the fixed base. A through hole of a predetermined size is provided at a position corresponding to the shaft, and a limiting boss is provided on the inside of the mounting plate at the position of the shaft, and the floating elastic member is sandwiched between the fixed base and the between adjacent limiting bosses.
The liquid-cooling connection device according to claim 2, wherein the diameter of the through hole is set larger than the outer diameter of the shaft, and the shaft is provided with a limit stop at a position outside the mounting plate ring, the alignment mechanism includes an abutment ring disposed in the through hole close to one end of the limit stop ring and surrounding the shaft, and sandwiched between the abutment ring and the limit boss Among the pagoda springs.
The liquid-cooling connection device according to claim 3, wherein the pagoda spring is pagoda-shaped, has a top end surface with the smallest diameter and a bottom end surface with the largest diameter, and the bottom end surface abuts against the abutment ring , the top end surface abuts against the limiting boss.
The liquid-cooling connection device according to claim 3 or 4, wherein the distance between the limit retaining ring and the limit boss is set larger than the thickness of the installation plate, and in the initial state, the The mounting plate abuts against the limit retaining ring to keep the pipe connector in a horizontal state.
The liquid cooling connection device according to any one of claims 3-5, characterized in that, the limiting boss is integrally formed on the shaft, and/or the abutting ring is integrally formed on the through holes in the mounting plate.
The liquid-cooling connection device according to claim 5 or 6, wherein the number of said pipeline joints is three, which are respectively water inlet, water outlet and fire outlet, and the plurality of shafts of the floating mechanism are uniform It is arranged on the peripheral side of the pipeline joint.
The liquid-cooling connection device according to claim 7, wherein the number of shafts in the floating mechanism is six, which are respectively arranged at the middle positions of the upper and lower sides of the installation plate along the length direction and at the four ends. In terms of angular positions, the alignment mechanism is at least provided on the shaft rods at four end angular positions and in the through holes.
An electric ship, characterized in that it comprises the liquid cooling connection device according to any one of claims 1-8.
A ship power station, characterized in that it comprises the liquid cooling connection device according to any one of claims 1-8.