Liquid cooling connecting device with floating function, electric ship and ship battery swap station

Abstract

The invention discloses a liquid cooling connecting device with a floating function, an electric ship and a ship battery swap station. The liquid cooling connecting device comprises a fixed base, a floating mechanism and an alignment mechanism, the floating mechanism is movably arranged on the fixed base, a pipeline joint used for being connected with a liquid cooling joint on the battery box is fixedly arranged on the floating mechanism, and the pipeline joint is communicated with the liquid supply device; and the alignment mechanism is arranged between the floating mechanism and the fixed base along the floating direction of the floating mechanism, and is used for enabling the pipeline joint to move in the plane where the pipeline joint is located during liquid cooling connection so as to enable the pipeline joint to be aligned with a liquid cooling joint on the battery box. In the connecting process of the pipeline connector, the alignment mechanism can enable the pipeline connector to move in the plane, so that alignment of the pipeline connector and the liquid cooling connector is facilitated, communication of the pipeline connector and the liquid cooling connector is facilitated, lateral deviation of the pipeline connector is avoided, leakage of the pipeline connector is avoided, and the accuracy and reliability of the pipeline connector are improved.

Description

[0001] This application is a division of a Chinese invention patent with an application date of December 31, 2021, application number CN202111667876.8, and name “Liquid-cooled connection device with floating function, electric ship and ship battery swap station”. Technical Field

[0002] The present invention relates to the field of electric ships, and in particular to a liquid cooling connection device with a floating function, an electric ship and a ship power exchange station. Background Art

[0003] An electric ship is a type of electric vehicle that can be propelled by electricity generated by battery boxes or marine generators.

[0004] For electric ships using battery boxes, the battery box settings of electric ships are generally divided into fixed and replaceable types. Among them, fixed batteries are generally fixed on the ship, and the ship is directly used as the charging object during charging. The replaceable battery box is generally fixed on the ship through a movable installation. The battery box can be removed to replace or charge the battery box separately. After the replaced battery box is charged, it is reinstalled on the ship.

[0005] The replaceable battery box is usually provided with a cooling pipe, which is connected to the cooling system on the electric ship or the ship battery swap station, and utilizes the circulation of the coolant to achieve thermal balance of the battery box.

[0006] At present, the cooling pipes on the replaceable battery box are rigidly connected to the electric ship or ship battery swap station. Due to frequent replacement, hull vibration and other influences, floating often occurs, resulting in unstable connection of the cooling pipe, which may cause the cooling pipe to disconnect and cause leakage of coolant. Summary of the invention

[0007] 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 prone to leakage, and to provide a liquid cooling connection device with a floating function, an electric ship and a ship battery replacement station.

[0008] The present invention solves the above technical problems through the following technical solutions:

[0009] A liquid cooling connection device with a floating function is used to achieve communication between a liquid supply device with a cooling liquid and a liquid cooling pipeline in a battery box, so that the cooling liquid flows into the liquid cooling pipeline in the battery box. The liquid cooling connection device includes: a fixed base, a floating mechanism and an alignment mechanism. The floating mechanism is movably arranged on the fixed base. A pipe joint for connecting with a liquid cooling joint on the battery box is fixed on the floating mechanism, and the pipe 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, and is used to move the pipe joint in its plane when performing liquid cooling connection so that it is aligned with the liquid cooling joint on the battery box.

[0010] 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 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 rigid connection of the pipeline joint. During the pipeline joint connection process, the alignment mechanism can move the pipeline joint in a 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, avoid lateral deviation of the pipeline joint, improve the stability of the pipeline joint, avoid leakage of the pipeline joint, and thus improve the accuracy and reliability of the pipeline joint.

[0011] Preferably, the floating mechanism includes a mounting plate for mounting the pipe joint and arranged parallel to the fixed base, a plurality of shafts penetrating the mounting plate and the fixed base to fix the two relative to each other, and a plurality of floating elastic members sleeved on the shafts and clamped between the mounting plate and the fixed base, a through hole of a predetermined size is provided on the mounting plate at a position corresponding to the shaft, the shaft is provided with a limiting boss at a position located on the inner side of the mounting plate, and the floating elastic member is clamped between the fixed base and the adjacent limiting boss.

[0012] In this solution, one end of the shaft rod is arranged on the fixed base, and the other end of the shaft rod is inserted into the through hole of the mounting plate. The floating elastic member is clamped between the limiting boss of the shaft rod and the fixed base, so that the floating elastic member can apply elastic force to the mounting plate through the limiting boss, and then the floating elastic member can make the mounting plate tend to move away from the fixed base, thereby realizing the floating of the mounting plate relative to the fixed base.

[0013] Preferably, the diameter of the through hole is larger than the outer diameter of the shaft rod, and the shaft rod is provided with a limit stop ring at a position outside the mounting plate. The alignment mechanism includes an abutment ring arranged in the through hole close to one end of the limit stop ring and surrounding the shaft rod, and a pagoda spring clamped between the abutment ring and the limit boss.

[0014] In this solution, the two ends of the pagoda spring respectively abut against the abutment ring of the shaft rod and the limiting boss of the mounting plate, thereby driving the mounting plate to be aligned with the shaft rod, realizing the adjustment of the position of the pipe joint on the mounting plate, avoiding the displacement of the mounting plate relative to the shaft rod, and thus making the position of the pipe joint relatively stable, avoiding lateral displacement of the pipe joint, improving the stability of the pipe joint, avoiding leakage of the pipe joint, and improving the reliability of the pipe joint.

[0015] Preferably, the pagoda spring is in the shape of a pagoda, having a top end face with the smallest diameter and a bottom end face with the largest diameter, the bottom end face abuts against the abutting ring, and the top end face abuts against the limiting boss.

[0016] In this solution, the small end of the pagoda-shaped spring is fixed relative to the fixed base, and the large end of the pagoda-shaped spring is fixed relative to the floating mechanism. Therefore, when the floating mechanism is offset, the large end of the pagoda-shaped spring moves with the floating mechanism, so that the pagoda-shaped spring is deformed 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 deflection of the floating mechanism.

[0017] Preferably, the distance between the limit stop ring and the limit boss is greater than the thickness of the mounting plate, and in an initial state, the mounting plate abuts against the limit stop ring to keep the pipe joint in a horizontal state.

[0018] In this solution, the distance between the limit stop ring and the limit boss is greater than the thickness of the mounting plate, so that the mounting 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 pipe joint in a horizontal state and avoid the pipe joint from being skewed.

[0019] Preferably, the limiting boss is integrally formed on the shaft rod, and / or the abutment ring is integrally formed in the through hole of the mounting plate.

[0020] In this solution, the limiting boss is integrally formed on the shaft rod, so the structure is simple and reliable. The abutment ring is integrally formed in the through hole of the mounting plate, so it is easy to process and manufacture.

[0021] Preferably, the number of the pipe joints is three, namely a water inlet, a water outlet and a fire outlet, and the multiple shafts of the floating mechanism are evenly arranged on the circumference of the pipe joints.

[0022] In this solution, the water inlet and the water outlet can realize the circulation of the coolant. The fire outlet can deal with sudden fire incidents. Multiple shafts are evenly arranged on the side of the pipe joint, which facilitates better alignment of the pipe joint.

[0023] Preferably, the floating mechanism includes six shafts, which are respectively arranged at the middle positions of the upper and lower sides of the mounting plate along the length direction and at four end angles. The alignment mechanism is at least arranged on the shafts at the four end angles and in the through holes.

[0024] In this solution, the position setting of the shaft rod is more reasonable.

[0025] An electric ship comprises the liquid cooling connection device as described above.

[0026] 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-mentioned liquid cooling connecting device, the liquid cooling joint is moved in its plane to accurately dock with the liquid cooling pipeline, thereby connecting the liquid cooling pipeline, avoiding lateral deviation of the pipeline joint, improving the stability of the pipeline joint, avoiding leakage of the pipeline joint, and thus improving the reliability of the pipeline joint.

[0027] A ship battery swap station comprises the liquid cooling connection device as described above.

[0028] When the liquid supply device of the ship battery swap station is connected to the liquid cooling pipeline in the battery box through the liquid cooling joint of the above-mentioned liquid cooling connecting device, the liquid cooling joint is moved within its plane to accurately dock with the liquid cooling pipeline, thereby connecting the liquid cooling pipeline, avoiding lateral deviation of the pipeline joint, improving the stability of the pipeline joint, avoiding leakage of the pipeline joint, and thus improving the reliability of the pipeline joint.

[0029] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0030] The positive and progressive effects of the present invention are:

[0031] The present invention sets the floating mechanism to move relative to the fixed base, and the pipeline structure and the floating mechanism are fixedly arranged relative to each other, 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 rigid connection of the pipeline joint. During the connection process of the pipeline joint, the alignment mechanism can move the pipeline joint in a plane, so as to facilitate the alignment of the pipeline joint and the liquid cooling joint, and then facilitate the connection of the pipeline joint and the liquid cooling joint, avoid lateral deviation of the pipeline joint, improve the stability of the pipeline joint, avoid leakage of the pipeline joint, and thus improve the accuracy and reliability of the pipeline joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of a liquid cooling connection device according to a preferred embodiment of the present invention.

[0033] Figure 2 for Figure 1Schematic diagram of the structure of the cross-section of the liquid cooling connection device.

[0034] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure of the liquid cooling connection device.

[0035] Figure 4 for Figure 1 Schematic diagram of the structure of the mounting plate in the liquid cooling connection device.

[0036] Figure 5 for Figure 4 Schematic diagram of the structure of the mounting plate cutaway view.

[0037] Description of reference numerals:

[0038] Liquid cooling connection device 100

[0039] Fixed base 11

[0040] Pipeline connector 12

[0041] Floating mechanism 20

[0042] Mounting plate 21

[0043] Shaft 22

[0044] Floating elastic member 23

[0045] Through hole 24

[0046] Limiting boss 25

[0047] Limit ring 26

[0048] Positioning mechanism 30

[0049] Abutment ring 31

[0050] Pagoda spring 32 DETAILED DESCRIPTION

[0051] The present invention will be described more clearly and completely below by way of embodiments in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0052] like Figure 1-Figure 5As shown, this embodiment is a liquid cooling connection device 100 with a floating function, which is used to achieve the connection between a liquid supply device with a coolant and a liquid cooling pipeline in a battery box, so that the coolant 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. The floating mechanism 20 is fixedly provided with a pipeline joint 12 for connecting with a liquid cooling joint on the battery box. The pipeline joint 12 is connected to the liquid supply device. 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 to move the pipeline joint 12 in the plane where it is located so that it is aligned with the liquid cooling joint on the battery box when performing liquid cooling connection. By setting the floating mechanism 20 to move relative to the fixed base 11, the pipeline structure and the floating mechanism 20 are relatively fixedly arranged, 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 and avoids the rigid connection of the pipeline joint 12. During the connection process of the pipe joint 12, the alignment mechanism 30 can move the pipe joint 12 in a plane, thereby facilitating the alignment of the pipe joint 12 and the liquid cooling joint, and then facilitating the connection between the pipe joint 12 and the liquid cooling joint, avoiding lateral deviation of the pipe joint 12, improving the stability of the pipe joint 12, and avoiding leakage of the pipe joint 12, thereby improving the accuracy and reliability of the pipe joint 12.

[0053] The floating mechanism 20 includes a mounting plate 21 for mounting the pipe connector 12 and arranged parallel to the fixed base 11, a plurality of shafts 22 penetrating the mounting plate 21 and the fixed base 11 to fix the two relative to each other, and a plurality of floating elastic members 23 sleeved on the shafts 22 and clamped between the mounting plate 21 and the fixed base 11. A through hole 24 of a predetermined size is provided on the mounting plate 21 at a position corresponding to the shaft 22. A limiting boss 25 is provided on the shaft 22 at a position located on the inner side of the mounting plate 21. The floating elastic member 23 is clamped between the fixed base 11 and the adjacent limiting boss 25. One end of the shaft rod 22 is arranged on the fixed base 11, and the other end of the shaft rod 22 is inserted into the through hole 24 of the mounting plate 21. The floating elastic member 23 is clamped between the limiting boss 25 of the shaft rod 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 tend to move away from the fixed base 11, thereby realizing the floating of the mounting plate 21 relative to the fixed base 11.

[0054] In this embodiment, the floating elastic member 23 may be a spring, which is in a compressed state. Threads may be provided at both ends of the shaft 22, 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 nuts are screwed on both ends of the shaft 22. 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 pipe joint 12, the mounting plate 21 can compress the spring, thereby achieving the floating of the mounting plate 21.

[0055] The diameter of the through hole 24 is larger than the outer diameter of the shaft 22. The shaft 22 is provided with a limit ring 26 at a position outside the mounting plate 21. The alignment mechanism 30 includes an abutment ring 31 disposed in the through hole 24 near one end of the limit ring 26 and surrounding the shaft 22, and a pagoda spring 32 sandwiched between the abutment ring 31 and the limit boss 25. The two ends of the pagoda spring 32 respectively abut against the abutment ring 31 of the shaft 22 and the limit boss 25 of the mounting plate 21, so that the mounting plate 21 can be driven to align with respect to the shaft 22, and the position of the pipe joint 12 on the mounting plate 21 can be adjusted to avoid the displacement of the mounting plate 21 relative to the shaft 22, thereby making the position of the pipe joint 12 relatively stable, avoiding the lateral displacement of the pipe joint 12, improving the stability of the pipe joint 12, avoiding leakage of the pipe joint 12, and improving the reliability of the pipe joint 12.

[0056] The pagoda spring 32 is in the shape of a pagoda, and has a top end face with the smallest diameter and a bottom end face with the largest diameter, the bottom end face abuts against the abutment ring 31, and the top end face abuts against the limiting boss 25. The small end of the pagoda spring is fixedly arranged relative to the fixed base 11, and the large end of the pagoda spring is fixedly arranged relative to the floating mechanism 20, so that when the floating mechanism 20 is offset, the large end of the pagoda spring moves with the floating mechanism 20, so that the pagoda spring is deformed perpendicular to its own axis, and then the pagoda spring can generate a reset force to drive the floating mechanism 20 to reset and prevent the floating mechanism 20 from deflecting.

[0057] As an embodiment, the pagoda spring 32 can generally refer to a spring with a large end and a small end. From the large end to the small end of the spring, the diameter of the spring gradually decreases.

[0058] 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 is abutted against the stop ring 26 in the initial state to keep the pipe joint 12 in a horizontal state. The distance between the stop ring 26 and the stop boss 25 is greater than the thickness of the mounting plate 21, so that the mounting plate 21 can move freely between the stop ring 26 and the stop boss 25. In the initial state, the mounting plate 21 abuts against the stop ring 26, which can keep the pipe joint 12 in a horizontal state and prevent the pipe joint 12 from being skewed.

[0059] like Figure 3 As shown, the limiting boss 25 is integrally formed on the shaft rod 22. By integrally forming the limiting boss 25 on the shaft rod 22, the structure is simple and reliable.

[0060] like Figure 5 As shown, the abutment 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 processing and manufacturing.

[0061] There are three pipe joints 12, namely a water inlet, a water outlet and a fire outlet. The multiple shafts 22 of the floating mechanism 20 are evenly arranged on the circumference of the pipe joint 12. The water inlet and the water outlet can realize the circulation of the coolant. The fire outlet can deal with sudden fire events. The multiple shafts 22 are evenly arranged on the circumference of the pipe joint 12, which facilitates better alignment of the pipe joint 12.

[0062] exist Figure 1 In the embodiment, three pipe connectors 12 are arranged in a straight line. In other embodiments, the number of pipe connectors 12 may be other values, and the plurality of pipe connectors 12 may be arranged in other forms.

[0063] There are six shafts 22 in the floating mechanism 20, which are respectively arranged at the middle positions of the upper and lower sides of the mounting plate 21 along the length direction and at the four end corner positions. The alignment mechanism 30 is at least arranged on the shafts 22 at the four end corner positions and in the through holes 24. The position setting of the shafts 22 is more reasonable. In other embodiments, the number of shafts 22 can also be other values, and the multiple shafts 22 can also be arranged in other forms.

[0064] This embodiment also discloses an electric ship, which includes the above-mentioned liquid cooling connection device 100 with 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-mentioned liquid cooling connection device 100, the liquid cooling joint 12 is accurately connected with the liquid cooling pipeline by moving the liquid cooling joint 12 in its plane, thereby connecting the liquid cooling pipeline, avoiding lateral deviation of the pipeline joint 12, improving the stability of the pipeline joint 12, avoiding leakage of the pipeline joint 12, and thus improving the reliability of the pipeline joint 12.

[0065] This embodiment also discloses a ship battery swap station, which includes the above-mentioned liquid cooling connection device 100 with floating function. When the liquid supply device of the ship battery swap station is connected to the liquid cooling pipeline in the battery box through the liquid cooling joint of the above-mentioned liquid cooling connection device 100, the liquid cooling joint is moved in its plane to accurately dock with the liquid cooling pipeline, thereby connecting the liquid cooling pipeline, which can avoid lateral deviation of the pipeline joint 12, improve the stability of the pipeline joint 12, and avoid leakage of the pipeline joint 12, thereby improving the reliability of the pipeline joint 12.

[0066] As an embodiment, the working process of the liquid cooling connection device 100 with floating function can be described as follows. After the battery box is in place, the liquid cooling connection device 100 moves toward the battery box, and the pipe joint 12 approaches the liquid cooling pipe of the battery box. After the pipe joint 12 and the liquid cooling pipe are engaged in place, the pipe joint 12 of the liquid supply device is connected to the connection valve on the battery box and the flow channel of the connection valve is opened, so that the cooling liquid can circulate between the battery box and the liquid supply device.

[0067] In the process of connecting the pipe joint 12 and the liquid cooling pipeline, if the pipe joint 12 and the liquid cooling pipeline are not centered, since the pipe joint 12 is installed to the fixed base 11 through the floating mechanism 20, the position of the pipe joint 12 can float relative to the fixed base 11 under the thrust force generated by the initial contact between the two. The alignment mechanism 30 drives the axis of the pipe joint 12 to be parallel to the axis of the shaft 22, that is, the axis of the pipe joint 12 can be perpendicular to the side of the mounting plate 21, so that the pipe joint 12 and the liquid cooling joint can be aligned, which facilitates the connection between the pipe joint 12 and the liquid cooling joint, can avoid lateral deviation of the pipe joint 12, can improve the stability of the pipe joint 12, can avoid leakage of the pipe joint 12, and can improve the reliability of the pipe joint 12.

[0068] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A liquid cooling connection device with a floating function, used to achieve the connection between a liquid supply device with a cooling liquid and a liquid cooling pipeline in a battery box, so that the cooling liquid flows into the liquid cooling pipeline in the battery box, characterized in that: The liquid cooling connection device comprises: Fixed base, A floating mechanism, wherein the floating mechanism is movably disposed on the fixed base, and a pipe joint for connecting with a liquid cooling joint on the battery box is fixedly disposed on the floating mechanism, and the pipe joint is communicated with the liquid supply device; The floating mechanism includes a mounting plate used to mount the pipe joint and arranged parallel to the fixed base, a plurality of shafts penetrating the mounting plate and the fixed base to fix the two relatively, and a plurality of floating elastic members sleeved on the shafts and clamped between the mounting plate and the fixed base.

2. The liquid cooling connection device according to claim 1, characterized in that: The mounting plate is provided with a through hole of a predetermined size at a position corresponding to the shaft rod, the shaft rod is provided with a limiting boss at a position located on the inner side of the mounting plate, and the floating elastic member is clamped between the fixed base and the adjacent limiting boss.

3. The liquid cooling connection device according to claim 2, characterized in that: The liquid cooling connection device also includes a positioning mechanism, which is arranged between the floating mechanism and the fixed base along the floating direction of the floating mechanism, and is used to move the pipe joint within its plane when performing liquid cooling connection so that it is aligned with the liquid cooling joint on the battery box.

4. The liquid cooling connection device according to claim 3, characterized in that: The diameter of the through hole is larger than the outer diameter of the shaft rod, and the shaft rod is provided with a limit stop ring at a position outside the mounting plate. The alignment mechanism includes an abutment ring arranged in the through hole close to one end of the limit stop ring and surrounding the shaft rod, and a pagoda spring clamped between the abutment ring and the limit boss.

5. The liquid cooling connection device according to claim 4, characterized in that: The pagoda spring is in the shape of a pagoda, and has a top end face with the smallest diameter and a bottom end face with the largest diameter. The bottom end face abuts against the abutting ring, and the top end face abuts against the limiting boss.

6. The liquid cooling connection device according to claim 4, characterized in that: The distance between the limit stop ring and the limit boss is greater than the thickness of the mounting plate, and in an initial state, the mounting plate is abutted against the limit stop ring to keep the pipe joint in a horizontal state.

7. The liquid cooling connection device according to claim 4, characterized in that: The limiting boss is integrally formed on the shaft rod, and / or the abutment ring is integrally formed in the through hole of the mounting plate.

8. The liquid cooling connection device according to claim 6, characterized in that: The number of the pipe joints is three, namely a water inlet, a water outlet and a fire outlet, and the multiple shafts of the floating mechanism are evenly arranged on the peripheral side of the pipe joint; Preferably, the number of shaft rods in the floating mechanism is six, which are respectively arranged at the middle position of the upper and lower sides of the mounting plate along the length direction and at four end angle positions, and the alignment mechanism is at least arranged on the shaft rods located at the four end angle positions and in the through hole.

9. An electric ship, characterized in that: It comprises a liquid cooling connection device as claimed in any one of claims 1 to 8.

10. A ship battery swap station, characterized in that: It comprises a liquid cooling connection device as claimed in any one of claims 1 to 8.

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