Liquid filling systems, power units and vehicles

Abstract

This utility model discloses a liquid filling system, a power unit, and a vehicle, relating to the field of automation control technology. The liquid filling system includes a storage tank, a delivery pipeline, a pressure detection element, an electromagnetic pump, and a controller. The delivery pipeline is connected to the storage tank; the pressure detection element is located in the delivery pipeline to detect the pressure in the pipeline; the electromagnetic pump is connected to the delivery pipeline and the storage tank to deliver liquid from the storage tank to the delivery pipeline; the controller is electrically connected to the electromagnetic pump and the pressure detection element. The technical solution provided by this utility model improves the service life of the liquid filling system.

Description

Technical Field

[0001] This utility model relates to the field of automation control technology, and in particular to a liquid filling system, a power unit, and a vehicle. Background Technology

[0002] Liquid dispensing systems are devices that precisely control the delivery and filling of liquids, and their applications are extremely wide-ranging. With the increasing level of industrial automation and the continuous improvement requirements of industries, the demand for new, efficient, safe, and reliable liquid dispensing systems is growing stronger.

[0003] Existing liquid filling systems generally use mechanical pumps as the pressure power. Mechanical pumps are prone to wear and leakage after long-term operation. Their working stability and durability are limited, and there is a risk of mechanical failure, which shortens their service life. Utility Model Content

[0004] The main purpose of this invention is to provide a liquid filling system, a power unit, and a vehicle, which aims to improve the service life of the liquid filling system.

[0005] To achieve the above objectives, the liquid dispensing system proposed in this utility model includes:

[0006] Storage tank;

[0007] A delivery pipeline is connected to the liquid storage tank;

[0008] A pressure detection element is disposed in the delivery pipeline to detect the pressure in the delivery pipeline;

[0009] An electromagnetic pump, connected to the delivery pipeline and the storage tank, to deliver liquid from the storage tank to the delivery pipeline; and,

[0010] The controller is electrically connected to the electromagnetic pump and the pressure sensing element.

[0011] In one embodiment, the pressure detection element is a pressure sensor.

[0012] In one embodiment, the liquid dispensing system further includes:

[0013] The exhaust pipe has one end connected to the delivery pipe, and the connection point between the exhaust pipe and the delivery pipe is located between the pressure detection element and the electromagnetic pump. The other end of the exhaust pipe is connected to the liquid storage tank.

[0014] In one embodiment, the exhaust pipe includes:

[0015] Reflux pipe; and,

[0016] A reflux switch connects the reflux pipe to the delivery pipe.

[0017] In one embodiment, the end of the reflux pipe near the delivery pipeline is provided with an end cap, and the end cap is provided with capillary holes, which form the reflux switch.

[0018] In one embodiment, the reflux switch is a solenoid valve.

[0019] In one embodiment, the reflux switch is detachably connected to the delivery pipeline.

[0020] In one embodiment, the liquid filling system further includes a filling valve located at the end of the delivery pipeline away from the storage tank.

[0021] This utility model also proposes a power device, including a vehicle-mounted liquid storage tank and the above-mentioned liquid filling system, wherein the delivery pipeline of the liquid filling system is connected to the vehicle-mounted liquid storage tank.

[0022] This utility model also proposes a vehicle including the aforementioned power unit.

[0023] In this invention, a liquid filling system is provided with a storage tank, a delivery pipeline, a pressure detection element, an electromagnetic pump, and a controller. The delivery pipeline is connected to the storage tank; the pressure detection element is located in the delivery pipeline to detect its pressure; the electromagnetic pump connects the delivery pipeline and the storage tank to deliver liquid from the storage tank to the delivery pipeline; and the controller is electrically connected to the electromagnetic pump and the pressure detection element. Compared to existing liquid filling systems using mechanical pumps, this invention incorporates an electromagnetic pump and a pressure detection element, and the controller electrically connects them. The controller can adjust the frequency of the electromagnetic pump in real time according to the pressure in the delivery pipeline, preventing the electromagnetic pump from operating under excessive pressure, improving its durability, and thus extending the service life of the liquid filling system. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A schematic diagram of an embodiment of the power device provided by this utility model.

[0026] Explanation of icon numbers:

[0027] 100. Power unit;

[0028] 110. Storage tank; 120. Delivery pipeline; 130. Pressure sensing element; 140. Electromagnetic pump; 141. Branch pipe; 150. Exhaust pipeline; 151. Return pipe; 152. Return switch;

[0029] 160. Vehicle-mounted liquid storage container.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0032] It should be noted that 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 the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] Liquid dispensing systems are devices that precisely control the delivery and filling of liquids, and their applications are extremely wide-ranging. With the increasing level of industrial automation and the continuous improvement requirements of industries, the demand for new, efficient, safe, and reliable liquid dispensing systems is growing stronger.

[0035] Existing liquid filling systems generally use mechanical pumps as the pressure power. Mechanical pumps are prone to wear and leakage after long-term operation. Their working stability and durability are limited, and there is a risk of mechanical failure, which shortens their service life.

[0036] This invention proposes a liquid filling system, a power unit, and a vehicle to improve the service life of the liquid filling system.

[0037] Please see Figure 1 In one embodiment, a liquid dispensing system includes a storage tank 110, a delivery pipeline 120, a pressure sensing element 130, an electromagnetic pump 140, and a controller.

[0038] The storage tank 110 is used to store liquid to provide the liquid required for the liquid filling system. In one embodiment, the storage tank 110 has a receiving cavity and an opening communicating with the receiving cavity, and the receiving cavity stores liquid. The liquid can be fuel, coolant, chemical reagent, or water, etc., and there is no specific limitation on the liquid. The size and specific structure of the storage tank 110 can be flexibly set according to actual needs, and there are no limitations here.

[0039] The delivery pipeline 120 is connected to the storage tank 110. In one embodiment, one end of the delivery pipeline 120 is connected to the storage tank 110, and the other end of the storage tank 110 is connected to the device being filled. The liquid in the storage tank 110 can flow along the delivery pipeline 120 to the device being filled. The material of the delivery pipeline 120 can be stainless steel, polyethylene, or polyvinyl chloride, etc., and there is no limitation on the material of the delivery pipeline 120.

[0040] A pressure sensing element 130 is disposed in the delivery pipeline 120 to detect the pressure in the delivery pipeline 120. In one embodiment, the pressure sensing element 130 is a pressure sensor capable of converting the detected pressure into other signals. In one embodiment, the pressure sensing element 130 and the delivery pipeline 120 are connected via a flange, providing a secure connection that can withstand high pressure. Of course, in other embodiments, the pressure sensing element 130 and the delivery pipeline 120 can also be directly connected via a threaded connection or a jacket connection, etc., without limitation. Of course, in other embodiments, the pressure sensing element 130 may also include a pressure transmitter or a pressure gauge, etc., without limitation on the pressure sensing element 130.

[0041] An electromagnetic pump 140 connects a delivery pipeline 120 and a storage tank 110 to deliver liquid from the storage tank 110 to the delivery pipeline 120. In one embodiment, the end of the electromagnetic pump 140 facing away from the storage tank 110 is directly connected to the delivery pipeline 120, and a branch pipe 141 is connected to the end of the electromagnetic pump 140 near the storage tank 110. The branch pipe 141 extends into the receiving cavity at its opening to facilitate the delivery of liquid from the receiving cavity to the delivery pipeline 120. Further, in one embodiment, the end of the branch pipe 141 extending into the receiving cavity is close to the bottom of the receiving cavity to ensure continuous liquid delivery during the filling process. The electromagnetic pump 140 can be a magnetic coil pump, a helical magnetic pump, or a magnetically driven pump, etc.; no limitation is placed on the electromagnetic pump 140.

[0042] A controller is electrically connected to the electromagnetic pump 140 and the pressure detection element 130. In one embodiment, the controller includes a sensor interface, a motor interface, a microprocessor, and a storage unit. The sensor interface is electrically connected to the pressure detection element 130 and is used to receive the real-time pressure value fed back by the pressure detection element 130. The motor interface is electrically connected to the electromagnetic pump 140 and is used to control the opening and closing and frequency of the electromagnetic pump 140. The microprocessor is the core of the controller and is used to analyze the pressure information fed back by the pressure detection element 130 and control the electromagnetic pump 140 according to preset control logic. The storage unit is used to store preset target pressure values. Further, in one embodiment, the controller presets a target pressure value, and the pressure detected by the pressure detection element 130 in the delivery pipeline 120 is the real-time pressure value. A pressure difference exists between the real-time pressure value and the target pressure value. The frequency of the electromagnetic pump 140 controlled by the controller is proportional to the pressure difference; that is, as the pressure difference between the real-time pressure value and the target pressure value decreases, the controller adjusts the frequency of the electromagnetic pump 140 from fast to slow in real time until the real-time pressure value approaches the target pressure value. In one embodiment, the controller's control of the electromagnetic pump 140 and the preset of the target pressure value can both be achieved through logic algorithms; the implementation method is not limited here. Of course, in other embodiments, the controller may also include a display screen, communication interface, or buttons, etc.; the specific structure of the controller is not limited here.

[0043] Thus, when using the liquid filling system, a target pressure value is preset first. Then, the controller activates the electromagnetic pump 140 to deliver liquid from the storage tank 110 to the delivery pipeline 120. The pressure detection element 130 detects the real-time pressure in the delivery pipeline 120 and feeds the real-time pressure value back to the controller. Based on the pressure difference between the real-time pressure value and the target pressure value, the controller adjusts the frequency of the electromagnetic pump 140 in real time so that the real-time pressure value gradually approaches the target pressure value. The liquid filling system avoids prolonged high-pressure operation of the electromagnetic pump 140 and is simple in structure and easy to use.

[0044] In this invention, a liquid filling system is provided with a storage tank 110, a delivery pipeline 120, a pressure detection element 130, an electromagnetic pump 140, and a controller. The delivery pipeline 120 is connected to the storage tank 110; the pressure detection element 130 is located in the delivery pipeline 120 to detect the pressure in the pipeline; the electromagnetic pump 140 is connected to the delivery pipeline 120 and the storage tank 110 to deliver liquid from the storage tank 110 to the delivery pipeline 120; and the controller is electrically connected to the electromagnetic pump 140 and the pressure detection element 130. Compared to existing liquid filling systems using mechanical pumps, this invention provides an electromagnetic pump 140 and a pressure detection element 130, and the controller electrically connects the electromagnetic pump 140 and the pressure detection element 130. The controller adjusts the frequency of the electromagnetic pump 140 in real time, preventing the electromagnetic pump 140 from operating under excessive pressure, thus improving the durability of the electromagnetic pump 140 and consequently extending the service life of the liquid filling system.

[0045] Please see Figure 1 In one embodiment, the liquid filling system further includes an exhaust line 150, which is mainly used to discharge gas from the delivery line 120.

[0046] Specifically, in one embodiment, one end of the exhaust pipe 150 is connected to the delivery pipe 120, and the connection point between the exhaust pipe 150 and the delivery pipe 120 is located between the pressure sensing element 130 and the electromagnetic pump 140. The other end of the exhaust pipe 150 is connected to the storage tank 110. When using the liquid filling system for filling, the electromagnetic pump 140 inevitably pumps air into the delivery pipe 120 while delivering liquid. At this time, the gas entering the delivery pipe 120 can flow back to the storage tank 110 through the exhaust pipe 150 to avoid air resistance. Simultaneously, the gas flowing back to the storage tank 110 also prevents a vacuum from forming inside the storage tank 110, ensuring the normal operation of the liquid filling system. Furthermore, the connection point being located between the pressure sensing element 130 and the electromagnetic pump 140 prevents gas from entering the pressure sensing element 130, ensuring the accuracy of the pressure sensing element 130's detection. Furthermore, in one embodiment, the exhaust pipe 150 is used to discharge gas and also to allow excess liquid in the delivery pipe 120 to flow back to the storage tank 110, thereby preventing blockage of the delivery pipe 120 and improving the safety of the liquid filling system.

[0047] Please see Figure 1Further, in one embodiment, the exhaust pipe 150 includes a return pipe 151 and a return switch 152. The outlet of the return pipe 151 is connected to the opening of the storage tank 110, and the return switch 152 is located at the inlet of the return pipe 151 to connect the return pipe 151 to the delivery pipe 120. Gas or liquid in the delivery pipe 120 can enter the return pipe 151 through the return switch 152 and then flow back to the storage tank 110. In one embodiment, the return switch 152 and the delivery pipe 120 are detachably connected. Specifically, in one embodiment, the return switch 152 and the delivery pipe 120 are connected without pressure. Of course, in other embodiments, the return switch 152 and the delivery pipe 120 can also be detachably connected by quick-connect fittings, flange connections, or threaded connections, etc., which are not limited here. The material of the return pipe 151 can be stainless steel, polyethylene, or polyvinyl chloride, etc., which are not limited here.

[0048] Specifically, in one embodiment, the end of the return pipe 151 near the delivery pipe 120 is provided with an end cap, and the end cap is provided with capillary holes, which form a return switch 152. In one embodiment, the end cap is located at the inlet of the return pipe 151 and is directly connected to the delivery pipe 120. The capillary holes on the end cap can realize the function of the return switch 152 under pressure difference and capillary action.

[0049] When using the liquid filling system, as the real-time pressure in the delivery pipeline 120 increases, the pressure in the return pipe 151 becomes lower than the pressure within the delivery pipeline 120. Under the influence of this pressure difference, gas flows through the capillary to the return pipe 151 to avoid gas resistance during the filling process. Conversely, when the liquid in the delivery pipeline 120 comes into contact with the capillary, it flows through the capillary to the return pipe 151 to prevent blockage of the delivery pipeline 120. When the real-time pressure value is approximately equal to the target pressure value, because the capillary cannot be completely closed, the controller controls the frequency of the electromagnetic pump 140 to approach 0 but not equal to 0 to maintain the real-time pressure value approximately equal to the target pressure value.

[0050] In another embodiment, the return switch 152 is a solenoid valve. Specifically, in one embodiment, one end of the solenoid valve is connected to the delivery pipeline 120, and the other end is connected to the inlet of the return pipe 151. Opening or closing the solenoid valve can connect or disconnect the return pipe 151 from the delivery pipeline 120. Further, in one embodiment, the controller can also control the opening and closing of the solenoid valve. The controller's control of the solenoid valve can be implemented through a logic algorithm; the implementation method is not limited here. Of course, in another embodiment, the opening and closing of the solenoid valve can also be implemented manually; the control method for opening and closing the solenoid valve is not limited here.

[0051] When using the liquid filling system, the solenoid valve is opened, connecting the return pipe 151 and the delivery pipe 120. As the real-time pressure in the delivery pipe 120 increases, the gas in the delivery pipe 120 passes through the solenoid valve and enters the return pipe 151 to avoid gas blockage during the filling process. When the liquid in the delivery pipe 120 comes into contact with the solenoid valve, the liquid can flow directly through the solenoid valve to the return pipe 151 to avoid blockage in the delivery pipe 120. When the real-time pressure value is approximately equal to the target pressure value, the solenoid valve is closed to completely isolate the return pipe 151 from the delivery pipe 120. The controller controls the frequency of the solenoid pump 140 to be zero to ensure that the real-time pressure value is approximately equal to the target pressure value.

[0052] The technical solution of this utility model embodiment avoids the risk of air lock by setting an exhaust pipe 150, thereby improving the safety of the liquid filling system. The exhaust pipe 150 includes a return pipe 151 and a return switch 152. The return switch 152 is configured as a capillary tube or a solenoid valve, which has a simple structure, sensitive response, and is easy to operate. It can be disassembled at any time when the liquid filling system is not in use, reducing the size of the liquid filling system and improving the ease of use of the liquid filling system.

[0053] In one embodiment, the liquid filling system further includes a filling valve located at the end of the delivery line 120 away from the storage tank 110.

[0054] Specifically, in one embodiment, one end of the filling valve is connected to the delivery pipeline 120, and the other end is connected to the device being filled. The filling valve is used to control the connection between the delivery pipeline 120 and the device being filled. That is, when the filling valve is open, the liquid in the delivery pipeline 120 can enter the device being filled through the filling valve; when the filling valve is closed, the liquid in the delivery pipeline 120 can only flow within the delivery pipeline 120. The filling valve can be a ball valve, a gate valve, or a stop valve, etc., and no limitation is placed on the filling valve here.

[0055] The technical solution of this utility model embodiment controls the connection between the delivery pipeline 120 and the equipment being dispensed by setting a filling valve. When dispensing liquid using the liquid dispensing system, the filling valve opens, the pressure detection element 130 detects real-time pressure changes within the delivery pipeline 120, and the controller controls the electromagnetic pump 140 to start, allowing liquid to be delivered to the delivery pipeline 120 and then into the equipment being dispensed. During the dispensing process, the filling valve closes, and the controller controls the electromagnetic pump 140 to shut down to prevent blockage of the delivery pipeline 120 and excessive pressure, further improving the service life of the liquid dispensing system.

[0056] Please see Figure 1This utility model also proposes a power unit 100, including a vehicle-mounted liquid storage tank 160 and a liquid filling system. The specific structure of the liquid filling system is as described in the above embodiments. Since this power unit 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0057] The on-board reservoir 160 is the device being filled, and the delivery line 120 of the liquid filling system is connected to the on-board reservoir 160. In one embodiment, the on-board reservoir 160 is used to store brake fluid. Of course, in other embodiments, the on-board reservoir 160 can also be used to store power steering fluid, engine coolant, or washer fluid, etc. There is no limitation on the liquid stored in the on-board reservoir 160. In one embodiment, the on-board reservoir 160 and the delivery line 120 are detachably connected, which improves the ease of use of the power unit 100. Of course, in other embodiments, the on-board reservoir 160 and the delivery line 120 can also be fixedly connected; there is no limitation on this.

[0058] The technical solution of this utility model is to set up a vehicle-mounted liquid reservoir 160 and a liquid filling system in the power unit 100. The liquid filling system fills the vehicle-mounted liquid reservoir 160 with liquid, thereby realizing the automation of filling the vehicle-mounted liquid reservoir 160, simplifying the filling process and improving the filling efficiency.

[0059] This utility model also proposes a vehicle, including a power unit 100. The specific structure of the power unit 100 is as described in the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A liquid dispensing system, characterized in that, include: Storage tank; A delivery pipeline is connected to the liquid storage tank; A pressure detection element is disposed in the delivery pipeline to detect the pressure in the delivery pipeline; An electromagnetic pump, connected to the delivery pipeline and the storage tank, to deliver liquid from the storage tank to the delivery pipeline; and, The controller is electrically connected to the electromagnetic pump and the pressure sensing element.

2. The liquid dispensing system as described in claim 1, characterized in that, The pressure detection element is a pressure sensor.

3. The liquid dispensing system as described in claim 1, characterized in that, The liquid dispensing system also includes: The exhaust pipe has one end connected to the delivery pipe, and the connection point between the exhaust pipe and the delivery pipe is located between the pressure detection element and the electromagnetic pump. The other end of the exhaust pipe is connected to the liquid storage tank.

4. The liquid dispensing system as described in claim 3, characterized in that, The exhaust pipe includes: Reflux pipe; and, A reflux switch connects the reflux pipe to the delivery pipe.

5. The liquid dispensing system as described in claim 4, characterized in that, The end of the return pipe near the delivery pipe is provided with an end cap, and the end cap is provided with capillary holes, which form the return switch.

6. The liquid dispensing system as described in claim 4, characterized in that, The reflux switch is a solenoid valve.

7. The liquid dispensing system as described in claim 4, characterized in that, The reflux switch is detachably connected to the delivery pipeline.

8. The liquid dispensing system according to any one of claims 1 to 7, characterized in that, The liquid filling system also includes a filling valve, which is located at the end of the delivery pipeline away from the storage tank.

9. A power unit, characterized in that, The system includes a vehicle-mounted liquid reservoir and a liquid dispensing system as described in any one of claims 1 to 8, wherein the delivery pipeline of the liquid dispensing system is connected to the vehicle-mounted liquid reservoir.

10. A vehicle, characterized in that, Includes the power unit as described in claim 9.

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