Electronic water pump integrated with physical quantity sensing function

Abstract

The utility model discloses an electronic water pump integrated with a physical quantity sensing function, which relates to the technical field of electronic water pumps and parts thereof and comprises an electronic water pump body and a plurality of sensors. The electronic water pump body is provided with at least one overflowing position for a liquid medium to flow; the sensor is arranged at at least one overflowing position of the electronic water pump body so as to detect at least one physical quantity of the liquid medium and transmit the physical quantity to the upper computer. The utility model mainly solves the problem of how to integrate the sensor at the electronic water pump; the electronic water pump has the advantages of being compact in structure and convenient to install and use, integration of the electronic water pump and the sensor is achieved, the number of sensors installed at the positions of an automobile (especially a new energy automobile), a heat management system, household appliances, industrial equipment and the like is reduced, system arrangement is simplified, the probability of system failure / failure is reduced, and the service life of the system is prolonged. And the cost advantage is improved.

Description

Electronic water pump with integrated physical quantity sensing function Technical Field

[0001] This utility model relates to the technical field of electronic water pumps and their components, specifically an electronic water pump with integrated physical quantity sensing function. Background Technology

[0002] Electric water pumps have high output efficiency and can achieve precise flow control. Therefore, they are widely used in automobiles, home appliances and industrial equipment. For example, new energy vehicles are usually equipped with two or more electric water pumps as the power source for the entire cooling system.

[0003] The Chinese invention patent publication text with publication number CN118991362A, entitled "Integrated Thermal Management System, Operation Method of Integrated Thermal Management System and Vehicle", discloses the typical application of electronic water pumps in the thermal management system of new energy vehicles. The first circulation pump, second circulation pump and third circulation pump described therein are all electronic water pumps. The Chinese invention patent publication text with publication number CN119297466A, entitled "Dual Temperature Zone Liquid Cooling Thermal Management System, Operation Method and Energy Storage System Using the Same", discloses the typical application of electronic water pumps in the thermal management system of energy storage systems. The first circulation pump and second circulation pump described therein are electronic water pumps.

[0004] During operation, the thermal management system needs to collect a large number of physical quantities, such as the temperature, flow rate, pressure, and flow rate / unit time of the liquid cooling medium, and transmit them to the controller of the thermal management system. After calculation by the controller, the operation of the refrigeration equipment (such as compressors, electronic expansion valves, and fans) and the liquid cooling medium driving equipment (i.e., electronic water pumps) of the thermal management system is controlled in a closed loop to achieve dynamic adjustment of the thermal management system.

[0005] The aforementioned thermal management system requires the deployment of various types of sensors at multiple nodes. However, each sensor is deployed independently, requiring the configuration of independent mechanical interfaces, electrical interfaces, and wiring harnesses, as well as additional accessories. Furthermore, more ports need to be configured on the controller, which obviously increases the complexity, cost, and probability of failure of the thermal management system.

[0006] In the existing technology, when electric water pumps are used in thermal management systems, they are usually only used as actuators and lack other uses. If some sensors can be integrated into the electric water pump, it will help reduce the complexity, cost and failure probability of the thermal management system. Summary of the Invention

[0007] The purpose of this invention is to provide an electronic water pump that integrates physical quantity sensing functions, which can provide physical quantity sensing functions to a host computer.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an electronic water pump integrating physical quantity sensing function, comprising an electronic water pump body and a plurality of sensors; the electronic water pump body is configured with at least one flow-through position for liquid medium to flow; the sensors are arranged at at least one flow-through position of the electronic water pump body to detect at least one physical quantity of the liquid medium and transmit the physical quantity to a host computer.

[0009] In the above technical solution, the electronic water pump body includes at least a pump cover, a pump casing, a stator assembly, a rotor-impeller assembly, and a drive circuit board; the pump cover and the pump casing are fixedly connected to each other to form an impeller chamber and a rotor chamber; the rotor-impeller assembly is supported in the impeller chamber and the rotor chamber in a manner suitable for rotation; the stator assembly is fixed in the pump casing and located outside the rotor chamber; the drive circuit board is also fixed in the pump casing and located outside the rotor chamber; the drive circuit board is at least electrically connected to the stator assembly to drive the stator assembly to operate, and when the stator assembly operates, it can magnetically drive the rotor-impeller assembly to rotate in the impeller chamber and the rotor chamber.

[0010] In the above technical solution, the pump cover is respectively equipped with an inlet pipe and an outlet pipe; both the inlet pipe and the outlet pipe are connected to the impeller chamber.

[0011] In the above technical solution, the flow-through position of the electronic water pump body includes at least:

[0012] The inlet pipe of the pump cover;

[0013] The impeller chamber;

[0014] The rotor chamber;

[0015] And the outlet pipe of the pump cover.

[0016] In the above technical solution, the sensitive element of the sensor is located in the overcurrent position of the electronic water pump body;

[0017] Alternatively, the sensitive element of the sensor may be attached to the inner wall of the flow-through location of the electronic water pump body;

[0018] Alternatively, the sensitive element of the sensor passes through the inner wall of the flow-through location of the electronic water pump body;

[0019] Alternatively, the sensitive element of the sensor may be located outside the inner wall of the flow-through location of the electronic water pump body.

[0020] In the above technical solution, the sensor is at least one of a liquid level sensor, a liquid flow sensor, a liquid temperature sensor, a liquid pressure sensor, a liquid conductivity sensor, and a liquid viscosity sensor.

[0021] In the above technical solution, the sensor is electrically connected and / or signal connected to the drive circuit board of the electronic water pump body; and / or, the sensor is electrically connected and / or signal connected to a host computer located outside the electronic water pump body.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: The electronic water pump of this utility model, which integrates physical quantity sensing function, has its sensors installed at at least one flow point on the body of the electronic water pump to detect at least one physical quantity of the liquid medium and transmit the physical quantity to the host computer, thereby providing physical quantity sensing function to the host computer. It has the characteristics of compact structure and convenient installation and use. This utility model realizes the integration of electronic water pump and sensor, reduces the number of sensors installed in automobiles (especially new energy vehicles), thermal management systems, home appliances and industrial equipment, simplifies system layout, reduces the probability of system failure / failure, and helps to improve the cost advantage of automobiles (especially new energy vehicles), thermal management systems, home appliances and industrial equipment. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of this utility model.

[0024] The attached figures are labeled as follows: 10, electronic water pump body; 10a, impeller chamber; 10b, rotor chamber; 101, pump cover; 101a, inlet pipe; 101b, outlet pipe; 102, pump casing; 103, dry and wet shielding sleeve; 104, stator assembly; 105, rotor-impeller assembly; 106, drive circuit board; 20, sensor. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] This embodiment provides an electronic water pump with integrated physical quantity sensing function, which can be applied in automobiles (especially new energy vehicles), thermal management systems, home appliances and industrial equipment, etc., to drive the directional flow of liquid media. In addition, it can also be used to detect at least one physical quantity of the liquid media and transmit the physical quantity to the host computer.

[0027] Please refer to Figure 1. The electronic water pump with integrated physical quantity sensing function in this embodiment includes an electronic water pump body 10 and a plurality of sensors 20.

[0028] The electric water pump body 10 is equipped with at least one flow point for the liquid medium to flow.

[0029] Sensor 20 is installed at at least one flow point of the electronic water pump body 10 to detect at least one physical quantity of the liquid medium and transmit the physical quantity to the host computer.

[0030] Specifically, the electronic water pump body 10 includes at least a pump cover 101, a pump housing 102, a stator assembly 104, a rotor-impeller assembly 105, and a drive circuit board 106; wherein, the pump cover 101 is a cover-shaped component made of engineering plastic or metal, and the pump housing 102 is a shell-shaped component made of engineering plastic or metal; the stator assembly 104 is made by winding enameled wire on a stator support (or stator core) a predetermined number of turns, and the rotor-impeller assembly 105 is based on a rotor support, and an impeller, a magnetic ring (i.e., a ring-shaped permanent magnet), and a bearing (e.g., a graphite bearing or a ceramic bearing) are integrated at the rotor support; the drive circuit board 106... The circuit board 106 is a printed circuit board (PCB), which at least houses the main controller, stator drive module / chip, power electronic devices, and necessary peripheral circuits. The pump cover 101 and the pump housing 102 are fixedly connected to each other (specifically, they are fixedly connected by screws, clips, or ultrasonic welding, etc.) to form the impeller chamber 10a and the rotor chamber 10b. In this embodiment, a dry and wet shielding sleeve 103 is disposed in the pump housing 102. The dry and wet shielding sleeve 103 is a sleeve-shaped component made of magnetically conductive metal material, which is fixed in the pump housing 102 to form the rotor chamber 10b. In other possible embodiments, the rotor chamber 10b is integrally formed directly in the pump housing 102. b; The rotor-impeller assembly 105 is supported in a rotatable manner within the impeller chamber 10a and the rotor chamber 10b. In this embodiment, a shaft core is disposed in the impeller chamber 10a and the rotor chamber 10b, and the rotor-impeller assembly 105 is sleeved on the shaft core. The bearing of the rotor-impeller assembly 105 is rotatably engaged with the shaft core, thereby enabling the rotor-impeller assembly 105 to be supported in a rotatable manner within the impeller chamber 10a and the rotor chamber 10b. The stator assembly 104 is fixed in the pump housing 102 (specifically, it can be fixed by clips or adhesive) and located outside the rotor chamber 10b, that is, the rotor chamber 10b is located outside the stator assembly 10a. Within the inner ring of 04; the drive circuit board 106 is also fixed within the pump housing 102 (specifically, it can be fixed by screws or clips) and located outside the rotor chamber 10b; the drive circuit board 106 is at least electrically connected to the stator assembly 104 to drive the stator assembly 104 to operate. In this embodiment, the stator assembly 104 is provided with terminals, which are soldered to the drive circuit board 106, thus realizing the electrical connection between the drive circuit board 106 and the stator assembly 104; when the stator assembly 104 is running, it can magnetically drive the rotor-impeller assembly 105 to rotate in the impeller chamber 10a and the rotor chamber 10b; in this way, the basic function of the electronic water pump is realized.

[0031] More specifically, the pump cover 101 is provided with an inlet pipe 101a and an outlet pipe 101b. In fact, the inlet pipe 101a and the outlet pipe 101b are both short tubular structures integrally formed on the pump cover 101, and both the inlet pipe 101a and the outlet pipe 101b are connected to the impeller chamber 10a.

[0032] Specifically, the flow-through positions of the electric water pump body 10 (along the direction in which the liquid medium enters and exits the electric water pump body 10) include at least:

[0033] The water inlet pipe 101a of the pump cover 101;

[0034] Impeller chamber 10a;

[0035] Rotor chamber 10b;

[0036] And the outlet pipe 101b of the pump cover 101.

[0037] It is understandable that the sensor 20 is deployed in one or more of the locations mentioned above.

[0038] Specifically, the sensitive element of the sensor 20 is located in the flow-through position of the electronic water pump body 10. For example, the entire sensor 20 is supported in the inlet pipe 101a, impeller chamber 10a, rotor chamber 10b and outlet pipe 101b by means of brackets or buckles.

[0039] Alternatively, the sensitive element of sensor 20 can be attached to the inner wall of the flow-through position of the electronic water pump body 10, for example, the sensor 20 can be attached to the inner wall of the inlet pipe 101a, impeller chamber 10a, rotor chamber 10b and outlet pipe 101b.

[0040] Alternatively, the sensitive element of sensor 20 passes through the inner wall of the flow passage of the electronic water pump body 10. For example, through holes are made in the inlet pipe 101a, impeller chamber 10a, rotor chamber 10b and outlet pipe 101b, and sensor 20 passes through the through holes.

[0041] Alternatively, the sensitive element of sensor 20 may be located outside the inner wall of the flow-through position of the electronic water pump body 10, for example, by attaching sensor 20 to the inner wall of inlet pipe 101a, impeller chamber 10a, rotor chamber 10b and outlet pipe 101b.

[0042] Specifically, sensor 20 is at least one of a liquid level sensor, a liquid flow sensor, a liquid temperature sensor, a liquid pressure sensor, a liquid conductivity sensor (which detects the concentration of the liquid medium and / or the degree of foreign matter contamination), and a liquid viscosity sensor (which detects the hydrodynamic properties of the liquid medium). It is understood that the aforementioned sensor 20 can be either a standalone sensor or an integrated sensor (e.g., an integrated sensor that integrates a liquid temperature sensor and a liquid pressure sensor).

[0043] Specifically, sensor 20 is electrically and / or signal-connected to the drive circuit board 106 of the electronic water pump body 10. In this case, the physical quantity detected by sensor 20 is first transmitted to the drive circuit board 106 of the electronic water pump body 10, and then transmitted to the host computer through the dedicated signal transmission port / wire harness of the drive circuit board 106. Alternatively, the physical quantity detected by sensor 20 is directly processed by the drive circuit board 106 of the electronic water pump body 10 to directly control the operation of the electronic water pump body 10; and / or sensor 20 is electrically and / or signal-connected to a host computer located outside the electronic water pump body 10. In this case, the physical quantity detected by sensor 20 can be directly transmitted to the host computer.

[0044] It should be noted that the aforementioned host computer can be an automotive controller, a dedicated controller for thermal management systems, a dedicated controller for energy storage systems, an industrial control computer, a programmable logic controller (PLC), or a controller based on a microcontroller / embedded chip, etc.

[0045] This embodiment of the electronic water pump integrates physical quantity sensing functionality. Its sensor 20 is deployed at at least one flow point on the pump body 10 to detect at least one physical quantity of the liquid medium and transmit this physical quantity to the host computer. This provides physical quantity sensing functionality to the host computer, resulting in a compact structure and convenient installation and use. This embodiment integrates the electronic water pump and sensor 20, reducing the number of sensors 20 required in vehicles (especially new energy vehicles), thermal management systems, home appliances, and industrial equipment. This simplifies system layout, reduces the probability of system failure / malfunction, and enhances the cost advantages of vehicles (especially new energy vehicles), thermal management systems, home appliances, and industrial equipment.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electronic water pump integrating physical quantity sensing function, characterized in that, The device includes an electronic water pump body and a plurality of sensors; the electronic water pump body is configured with at least one flow-through position for the liquid medium to flow; the sensors are arranged at at least one flow-through position of the electronic water pump body to detect at least one physical quantity of the liquid medium and transmit the physical quantity to a host computer.

2. The electronic water pump integrating physical quantity sensing function according to claim 1, characterized in that, The electronic water pump body includes at least a pump cover, a pump casing, a stator assembly, a rotor-impeller assembly, and a drive circuit board; the pump cover and the pump casing are fixedly connected to each other to form an impeller chamber and a rotor chamber; the rotor-impeller assembly is supported in the impeller chamber and the rotor chamber in a manner suitable for rotation; the stator assembly is fixed in the pump casing and located outside the rotor chamber. The drive circuit board is also fixed in the pump housing and located outside the rotor chamber; the drive circuit board is at least electrically connected to the stator assembly to drive the stator assembly to operate, and when the stator assembly is operating, it can magnetically drive the rotor-impeller assembly to rotate in the impeller chamber and the rotor chamber.

3. The electronic water pump integrating physical quantity sensing function according to claim 2, characterized in that, The pump cover is equipped with an inlet pipe and an outlet pipe, both of which are connected to the impeller chamber.

4. The electronic water pump integrating physical quantity sensing function according to claim 3, characterized in that, The flow passage of the electronic water pump body includes at least: the inlet pipe of the pump cover; the impeller chamber; the rotor chamber; and the outlet pipe of the pump cover.

5. The electronic water pump integrating physical quantity sensing function according to any one of claims 1-4, characterized in that, The sensor's sensitive element is located within the flow-through position of the electronic water pump body; or, the sensor's sensitive element is attached to the inner wall of the flow-through position of the electronic water pump body; or, the sensor's sensitive element passes through the inner wall of the flow-through position of the electronic water pump body; or, the sensor's sensitive element is located outside the inner wall of the flow-through position of the electronic water pump body.

6. The electronic water pump integrating physical quantity sensing function according to any one of claims 1-4, characterized in that, The sensor is at least one of the following: liquid level sensor, liquid flow sensor, liquid temperature sensor, liquid pressure sensor, liquid conductivity sensor, and liquid viscosity sensor.

7. The electronic water pump integrating physical quantity sensing function according to any one of claims 2-4, characterized in that, The sensor is electrically and / or signal-connected to the drive circuit board of the electronic water pump body; and / or, the sensor is electrically and / or signal-connected to a host computer located outside the electronic water pump body.

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