New energy automobile thermal management liquid filling device

Abstract

The utility model relates to new energy automobile heat management liquid filling device, including frame, be provided with lifting assembly in the frame, at least one filling assembly for injecting heat management liquid into holding bucket is installed on the lifting assembly, lifting assembly drives filling assembly to move up and down in the frame, and filling assembly includes the filling pipe of fixed mounting on the lifting assembly, the obturator of sliding setting is provided in the filling pipe, and the one side of filling pipe is connected with the liquid inlet pipe, and the liquid inlet drive source that drives the obturator to move up and down along the axis of filling pipe is installed on the filling pipe, the output end of liquid inlet drive source is retracted, and the liquid inlet pipe and filling pipe are communicated, and the output end of liquid inlet drive source is stretched out, and the liquid inlet pipe and filling pipe are closed, through the movement of obturator to control the closure and the intercommunication of liquid inlet pipe and filling pipe, and compared with the prior art, the obturator of the scheme can cut off heat management liquid quickly, equivalent to cutting off at the source of heat management liquid, reduces the possibility that heat management liquid remains and trickles in the filling pipe.

Description

Technical Field

[0001] This utility model relates to the field of filling technology, and more particularly to a filling device for thermal management fluid in new energy vehicles. Background Technology

[0002] The thermal management fluid filling device dispenses the existing thermal management fluid into a container. The existing filling device includes a filling body comprising an upper telescopic tube and a lower telescopic tube coaxially arranged. A filling head is installed at the bottom of the lower telescopic tube. The filling head and the upper telescopic tube are connected by a flexible tube. A piston is installed inside the upper telescopic tube and is connected to the lower telescopic tube. As the lower telescopic rod moves downward, the piston moves downward simultaneously, and the liquid in the upper telescopic rod flows into the filling head through the flexible tube for filling. After filling, the lower telescopic rod moves upward, and the piston moves upward simultaneously, sealing the connection between the flexible tube and the upper telescopic tube. When the piston seals, residual liquid in the flexible tube and filling head continues to be discharged through the filling head, causing liquid waste and pollution of the filling environment. If the filling head directly cuts off the liquid discharge after filling, a closed space is formed inside the flexible tube, and liquid will remain inside the flexible tube. Utility Model Content

[0003] The purpose of this invention is to provide a filling device for thermal management fluid in new energy vehicles, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a new energy vehicle thermal management fluid filling device, including a frame, a lifting assembly disposed within the frame, and at least one filling component for injecting thermal management fluid into a holding container mounted on the lifting assembly. The lifting assembly drives the filling component to move up and down within the frame. The filling component includes a filling pipe fixedly mounted on the lifting assembly. A sealing element is slidably installed inside the filling tube. A liquid inlet pipe is connected to one side of the filling tube. A liquid inlet drive source is installed on the filling tube to drive the sealing element to move up and down along the axis of the filling tube. When the output end of the liquid inlet drive source is retracted, the liquid inlet pipe and the filling tube are connected. When the output end of the liquid inlet drive source is extended, the liquid inlet pipe and the filling tube are closed.

[0005] Compared with the prior art, the beneficial effects of this solution are: 1) The extension and retraction of the output end of the drive source directly controls the movement of the sealing component in the filling tube, and then the movement of the sealing component controls the sealing and connection of the liquid inlet tube and the filling tube. Compared with the prior art, the sealing component of this solution can quickly cut off the heat management fluid, which is equivalent to cutting off the heat management fluid at the source, reducing the possibility of heat management fluid residue and leakage in the filling tube.

[0006] 2) The lifting component can drive the filling component to move up and down. When filling containers of different heights, the distance between the container and the filling component can be flexibly adjusted, thus expanding the applicability of this solution.

[0007] In a preferred embodiment of this application, a liquid inlet pipe is connected to one side of the filling tube, and a liquid inlet hole is provided on the side wall of the filling tube and is connected to the liquid inlet pipe; when the output end of the liquid inlet drive source extends, the sealing member blocks the liquid inlet hole, and the filling tube and the liquid inlet pipe are closed; when the output end of the liquid inlet drive source retracts, the sealing member and the liquid inlet hole are separated, and the filling tube and the liquid inlet pipe are connected.

[0008] Compared with existing technologies, the beneficial effects of this solution are as follows: By sealing and separating the liquid inlet hole with the sealing component, the filling tube and the liquid inlet tube are sealed and connected. When the sealing component seals the liquid inlet hole, it can effectively prevent liquid leakage, ensure the accuracy and stability of the filling process, and help improve the filling quality. At the same time, when the filling tube needs to be cleaned separately, the sealing component can be controlled by the liquid inlet drive source to seal the liquid inlet hole, isolating the filling tube from the liquid inlet tube, which facilitates the cleaning of the inside of the filling tube.

[0009] In a preferred embodiment of this application, the sealing component includes two parallel sealing plates, with an annular mounting groove between the two sealing plates, and an inflatable airbag installed in the mounting groove; when the inflatable airbag is inflated, the inflatable airbag seals the liquid inlet hole.

[0010] Compared with existing technologies, the beneficial effects of this solution are as follows: the inflatable airbag is used to seal the liquid inlet hole. The inflatable airbag and the edge of the liquid inlet hole can form a tight and flexible seal, which can adapt to the gap caused by the processing error or slight deformation of the liquid inlet hole. Compared with rigid sealing parts (such as direct sealing with a metal plate), it effectively reduces the risk of leakage caused by mismatch of contact surfaces.

[0011] In a preferred embodiment of this application, the liquid inlet drive source and the sealing component are connected by a connecting rod. An inflation hole is provided inside the connecting rod, and two connecting holes are provided on the outer surface of the connecting rod that are connected to the inflation hole. One connecting hole is located inside the filling tube and is connected to the inflation airbag, while the other connecting hole is located outside the filling tube.

[0012] Compared with existing technologies, the beneficial effects of this solution are as follows: By setting an inflation hole in the connecting rod, the inflatable airbag can be connected to an external air source, eliminating the need for a separate inflation pipeline that runs through the filling tube, reducing the number of parts and simplifying the overall structure. At the same time, the connecting rod not only drives the movement of the sealing component but also simultaneously provides an inflation and deflation pathway for the inflatable airbag. This allows the displacement of the sealing component and the inflation and deflation of the airbag to be linked through the same carrier, reducing coordination errors between different components. This ensures that the inflatable airbag can be inflated and sealed promptly and effectively after the sealing component is in place, and that the inflatable airbag can be deflated quickly when connection is needed, improving response speed and stability.

[0013] In a preferred embodiment of this application, a conical sealing ring is provided at the bottom of the filling tube, and a liquid outlet hole that is connected to the filling tube is provided at the center of the sealing ring. A sealing surface is provided on the sealing ring, and the diameter of the sealing element is smaller than the inner diameter of the filling tube. A contact surface that matches the sealing surface is provided on the sealing element, and a conical sealing ring is provided in the contact surface. When the output end of the liquid inlet drive source extends, the contact surface and the sealing surface abut, and the filling tube and the liquid outlet hole are closed. When the output end of the liquid inlet drive source retracts, the contact surface and the sealing surface separate, and the filling tube and the liquid outlet hole are connected.

[0014] Compared with existing technologies, the beneficial effects of this solution are: when the contact surface and the sealing surface are in contact, the conical structure can make the pressure distribution between the sealing surface and the contact surface more uniform, forming a good seal; compared with traditional sealing methods such as flat sealing rings, it can better prevent leakage and improve sealing performance.

[0015] In a preferred embodiment of this application, the lifting assembly includes a lifting frame slidably mounted on a frame, a filling tube fixedly mounted on the lifting frame, and a lifting drive source mounted on the frame to drive the lifting frame to move up and down within the frame. When it is necessary to fill the holding tank with heat management liquid, the lifting drive source drives the liquid outlet end of the filling tube to extend into the holding tank. After filling is completed, the lifting drive source drives the filling tube and the holding tank to move away from each other.

[0016] Compared with the existing technology, the beneficial effects of this solution are as follows: When filling the container, the lifting component extends the liquid outlet end of the filling tube into the container; the distance between the liquid outlet end of the filling tube and the bottom of the container is shortened, avoiding the thermal management fluid from splashing outside the container when it is first injected. After filling is completed, the lifting drive source drives the filling tube and the container away from each other, which facilitates the transfer of the container and avoids interference between the container and the filling tube.

[0017] In a preferred embodiment of this application, a liquid receiving component is further installed below the driving component. The liquid receiving component includes a liquid receiving driving source mounted on the frame. A liquid receiving box is fixedly installed on the output end of the liquid receiving driving source, and a liquid receiving groove is provided inside the liquid receiving box. When the output end of the liquid receiving driving source is extended, the liquid receiving box is located directly below the filling tube.

[0018] Compared with existing technologies, the beneficial effects of this solution are as follows: After filling is completed, a small amount of heat management liquid will be adsorbed on the filling tube. Through the setting of the liquid receiving component, the heat management liquid adsorbed on the filling tube will fall into the liquid receiving box under the action of gravity, thus avoiding the heat management liquid from dripping onto the ground or the transmission device and causing pollution to the filling environment.

[0019] In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the advantages brought about by the technical features of these technical solutions as described above, other technical problems that the present invention can solve, other technical features contained in the technical solutions, and the advantages brought about by these technical features will be further described in detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the new energy vehicle thermal management fluid filling device of this application.

[0021] Figure 2 This is a cross-sectional view of the filling component inlet pipe and filling pipe in the new energy vehicle thermal management fluid filling device of this application when they are connected.

[0022] Reference numerals: 01. Bracket, 02. Filling tube, 03. Liquid inlet tube, 04. Liquid inlet hole, 05. Sealing element, 06. Connecting rod, 07. Liquid inlet drive source, 08. Sealing plate, 09. Inflatable airbag, 10. Inflation hole, 11. Connecting hole, 12. Lifting frame, 13. Mounting plate, 14. Connecting rod, 15. Drive nut, 16. Drive screw, 17. Lifting drive source, 18. Liquid receiving drive source, 19. Liquid receiving box, 20. Liquid receiving tank, 21. Mounting base, 22. Receiving cavity, 23. Strip hole. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0024] Please see Figure 1 As shown, the new energy vehicle thermal management fluid filling device of this embodiment includes a frame 01 installed on the ground. A lifting component is provided inside the frame 01, and at least one filling component is installed on the lifting component. When thermal management fluid needs to be filled, the lifting component carries the filling component to move towards the container for holding thermal management fluid. The filling component injects thermal management fluid into the container. After filling is completed, the lifting component carries the filling component away from the container, which facilitates the transfer of the container containing thermal management fluid.

[0025] Please see Figure 2 The filling assembly includes a filling pipe 02 fixedly mounted on a lifting assembly. The filling pipe 02 is vertically arranged inside the frame 01. One side of the filling pipe 02 is connected to a liquid inlet pipe 03, which is preferably a flexible hose. The liquid inlet pipe 03 is connected in a continuous manner to a heat management liquid source. A liquid inlet hole 04 is provided on the side wall of the filling pipe 02, which is connected in a continuous manner to the liquid inlet pipe 03.

[0026] A sealing element 05 is slidably disposed inside the filling tube 02, and the sealing element 05 moves up and down along the axis of the filling tube 02. A connecting rod 06 is fixedly connected to the sealing element 05, and a liquid inlet drive source 07 is fixedly installed on the top of the filling tube 02. The liquid inlet drive source 07 is preferably a telescopic cylinder, and the end of the connecting rod 06 extends to the outside of the filling tube 02 and is fixedly connected to the output end of the liquid inlet drive source 07.

[0027] When the output end of the liquid inlet drive source 07 extends, the sealing element 05 just covers the liquid inlet hole 04, preventing the thermal management liquid in the liquid inlet pipe 03 from entering the filling pipe 02 through the liquid inlet hole 04; when the output end of the liquid inlet drive source 07 retracts, the sealing element 05 moves upward, the sealing element 05 separates from the liquid inlet hole 04, and the thermal management liquid in the liquid inlet pipe 03 enters the filling pipe 02 through the liquid inlet hole 04, thus flowing into the container.

[0028] The sealing component 05 includes two parallel sealing plates 08 connected by a connecting post, which is integrally formed with the connecting rod 06. One sealing plate 08 and the connecting post are integrally formed, while the other sealing plate 08 and the connecting post are fixedly connected by fasteners. An annular mounting groove is provided between the two sealing plates 08, and an inflatable airbag 09 is installed in the mounting groove. The inflatable airbag 09 is sleeved on the connecting post, and the sealing plate 08, which is integrally formed with the connecting post, has a mounting hole. The inflation nozzle of the inflatable airbag 09 is installed in the mounting hole. When assembling the sealing component 05, the inflatable airbag 09 is sleeved on the connecting post with the inflation nozzle positioned in the mounting hole. Then, the sealing plates 08 are fixed to the connecting post with fasteners, and the inflatable airbag 09 is clamped between the two sealing plates 08.

[0029] An inflation hole 10 is provided at the center of the connecting rod 06. Two connecting holes 11, which are connected to the inflation hole 10, are provided on the outer surface of the connecting rod 06. One connecting hole 11 is located inside the filling tube 02 and near the sealing plate 08, while the other connecting hole 11 is located outside the filling tube 02. Each connecting hole 11 is threaded with an air pipe connector. The air pipe connector installed inside the filling tube 02 and the aforementioned inflation nozzle are connected through an air pipe. The air pipe connector installed on the connecting hole 11 outside the filling tube 02 is connected to external compressed air through an air pipe. A solenoid valve is provided on the pipeline connecting the connecting hole 11 outside the filling tube 02 and the external compressed air. Preferably, the solenoid valve is a two-position three-way solenoid valve. Since the two-position three-way solenoid valve has a P port, an A port, and an R port, where the P port is connected to the compressed air connecting tube through an air pipe, the A port is connected to the airbag through an air pipe, and the R port is the exhaust port, when air needs to be inflated into the airbag, the solenoid valve is energized. At this time, the P port and A port on the solenoid valve are connected, and compressed air inflates the airbag. When the solenoid valve is de-energized, ports A and R on the solenoid valve are connected. At this time, the gas inside the airbag is discharged through port R. If you want to quickly discharge the gas inside the airbag, connect an air pump to port R through an air tube and use the air pump to quickly discharge the gas inside the airbag.

[0030] Therefore, during filling, the inflation bladder 09 is first deflated. At this time, the solenoid valve is de-energized, and the gas inside the inflation bladder 09 enters the inflation port 10 and then exits through the solenoid valve, restoring the inflation bladder 09 to its normal state. The output end of the liquid inlet drive source 07 installed on the filling tube 02 retracts, causing the sealing member 05 to move towards the top of the filling tube 02, separating the sealing member 05 from the aforementioned liquid inlet port 04. After the sealing member 05 separates from the liquid inlet port 04, the air pipe connecting the connecting hole and the inflation nozzle remains inside the filling tube 02. The thermal management fluid in the liquid inlet pipe 03 enters the filling tube 02 through the liquid inlet port 04, then exits from the bottom of the filling tube 02 and flows into the holding container. After filling is completed, the output end of the liquid inlet drive source 07 extends, driving the sealing component 05 to move towards the bottom of the filling tube 02, so that the sealing component 05 covers the liquid inlet hole 04. At this time, the inflation bladder 09 is aligned with the liquid inlet hole 04. Then, the aforementioned battery valve is energized. After the solenoid valve is energized, compressed air enters the inflation hole 10 on the connecting rod 06 through the solenoid valve. The compressed air enters the inflation bladder 09 along the inflation hole 10 to inflate the inflation bladder 09, causing the inflation bladder 09 to expand. After the inflation bladder 09 expands, it just blocks the liquid inlet hole 04, preventing the thermal management liquid in the liquid inlet tube 03 from entering the filling tube 02 through the liquid inlet hole 04.

[0031] A mounting base 21 is fixedly installed on the top of the filling tube 02 by welding or fasteners. The aforementioned liquid inlet drive source 07 is fixed on the mounting base 21, and a receiving cavity 22 is provided inside the mounting base 21. The mounting base 21 has a strip-shaped hole 23 that communicates with the receiving cavity 22. The connecting hole 11 on the connecting rod 06, which is located outside the filling tube 02, is located inside the receiving cavity 22. An air tube passes through the strip-shaped hole 23 and is connected to the connecting hole 11 on the connecting rod 06, which is located outside the filling tube 02, via an air tube connector. When the connecting rod 06 moves up and down under the action of the liquid inlet drive source 07, the air tube moves up and down within the strip-shaped hole 23.

[0032] Please see Figure 1 The lifting assembly includes a lifting frame 12 for mounting the filling tube 02. The lifting frame 12 includes a mounting plate 13 and connecting rods 14 fixedly connected to both ends of the mounting plate 13 by welding. The filling tube 02 is mounted on the mounting plate 13. Two parallel sliding guide rails are vertically mounted on the frame 01. The ends of the connecting rods 14 are fixedly connected to the sliders on the sliding guide rails, allowing a sliding connection between the lifting frame 12 and the frame 01. A drive nut 15 is fixedly mounted on one of the connecting rods 14. A drive screw 16 adapted to the drive nut 15 is mounted on the frame 01. The two ends of the drive screw 16 are connected to the frame 01 through bearing seats. The drive screw 16 is rotatably mounted on the frame 01. A lifting drive source 17 is fixedly mounted on the frame 01. The lifting drive source 17 is preferably a servo motor. The output end of the lifting drive source 17 is connected to the drive screw 16 through a connecting shaft. When the lifting drive source 17 is working, it drives the drive screw 16 to rotate. Since the drive nut 15 is fixedly installed on one of the connecting rods 14 on the lifting frame 12, and both ends of the lifting frame 12 are slidably connected to the frame 01 through sliding guide rails, when the drive screw 16 rotates, neither the lifting frame 12 nor the drive nut 15 will rotate with the drive screw 16; they can only move up and down along the axis of the drive screw 16. Therefore, through the cooperation of the drive screw 16 and the drive nut 15, the mounting plate 13 is driven to move up and down along the sliding guide rails within the frame 01.

[0033] Therefore, when it is necessary to fill the container with heat management fluid, the lifting drive source 17 reverses, driving the mounting plate 13 and the filling tube 02 on the mounting plate 13 to move towards the container, so that the outlet end of the filling tube 02 extends into the container. Then, the filling assembly injects heat management fluid into the container. When the injected heat management fluid approaches the filling tube 02, the lifting drive source 17 rotates forward, driving the mounting plate 13 to move away from the filling tube 02. This separates the filling tube 02 from the container, and the lifting drive source 17 stops working. At this time, the filling assembly continues to inject heat management fluid into the container. When the container is full of heat management fluid, the filling assembly stops injecting heat management fluid into the container. The lifting drive source 17 continues to rotate forward, driving the filling assembly to continue moving upward, so that the filling tube 02 in the filling assembly moves away from the container. This facilitates the transfer of the container containing heat management fluid.

[0034] Please see Figure 1 A liquid receiving assembly is mounted on the frame 01, located below the drive assembly. The assembly includes a liquid receiving drive source 18 horizontally mounted on the frame 01. The drive source 18 is preferably a telescopic cylinder. A liquid receiving box 19 is fixedly mounted on the output end of the drive source 18, and a liquid receiving trough 20 is provided inside the box 19. When the output end of the drive source 18 is extended, the box 19 is located directly below the filling tube 02, used to catch the heat management liquid dripping from the filling tube 02 after filling. This prevents the heat management liquid from dripping onto the ground or conveyor track, avoiding contamination of the filling environment.

[0035] In this embodiment, the container is moved directly below the filling assembly via a transmission track or manually, aligning the filling tube 02 and the container vertically. The drive assembly moves the filling assembly toward the container, causing the filling tube 02 inside the assembly to extend into the container, and the filling assembly injects heat management fluid into the container. Once the container is full of heat management fluid, the filling assembly stops injecting heat management fluid, and the drive assembly moves the filling assembly away from the container. At this time, the output end of the liquid receiving drive source 18 in the liquid receiving assembly extends, positioning the liquid receiving box 19 directly below the filling tube 02 to catch the heat management fluid dripping from the filling tube 02.

[0036] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0037] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A filling device for thermal management fluid in new energy vehicles, characterized in that, The machine includes a frame, within which a lifting assembly is installed. At least one filling component is mounted on the lifting assembly for injecting heat management fluid into a holding tank. The lifting assembly drives the filling component to move up and down within the frame. The filling component includes a filling pipe fixedly mounted on the lifting assembly. A sealing element is slidably installed inside the filling tube. A liquid inlet drive source is installed on the filling tube to drive the sealing element to move up and down along the axis of the filling tube. When the output end of the liquid inlet drive source retracts, the heat management liquid is injected into the holding tank through the filling tube. When the output end of the liquid inlet drive source extends, the injection of the heat management liquid into the holding tank is cut off.

2. The new energy vehicle thermal management fluid filling device according to claim 1, characterized in that: One side of the filling tube is connected to the liquid inlet pipe, and the side wall of the filling tube is provided with a liquid inlet hole that is connected to the liquid inlet pipe. When the output end of the liquid inlet drive source extends, the sealing element blocks the liquid inlet hole, and the filling tube and the liquid inlet pipe are closed. When the output end of the liquid inlet drive source retracts, the sealing element and the liquid inlet hole are separated, and the filling tube and the liquid inlet pipe are connected.

3. The new energy vehicle thermal management fluid filling device according to claim 2, characterized in that: The sealing component includes two parallel sealing plates with an annular mounting groove between them. An inflatable airbag is installed in the mounting groove. When the airbag is inflated, it seals the liquid inlet.

4. The new energy vehicle thermal management fluid filling device according to claim 3, characterized in that: The liquid inlet drive source and the sealing component are connected by a connecting rod. An inflation hole is provided inside the connecting rod. Two connecting holes are provided on the outer surface of the connecting rod and are connected to the inflation hole. One connecting hole is located inside the filling tube and is connected to the inflation airbag. The other connecting hole is located outside the filling tube.

5. The new energy vehicle thermal management fluid filling device according to any one of claims 1-4, characterized in that: The lifting assembly includes a lifting frame that is slidably mounted on the frame, a filling tube that is fixedly mounted on the lifting frame, and a lifting drive source that drives the lifting frame to move up and down within the frame. When it is necessary to fill the container with heat management liquid, the lifting drive source drives the liquid outlet end of the filling tube to extend into the container. After filling is completed, the lifting drive source drives the filling tube and the container away from each other.

6. The new energy vehicle thermal management fluid filling device according to any one of claims 1-4, characterized in that: Below the drive assembly is a liquid receiving assembly, which includes a liquid receiving drive source mounted on the frame. A liquid receiving box is fixedly mounted on the output end of the liquid receiving drive source, and a liquid receiving trough is provided inside the liquid receiving box. When the output end of the liquid receiving drive source is extended, the liquid receiving box is located directly below the filling tube.

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