Five-way electronic water valve

Abstract

The utility model relates to the technical field of new energy automobiles, in particular to a five-way electronic water valve which is characterized in that when the water valve operates, an external signal is converted into a current signal through a printed circuit board assembly, and then the current signal controls a motor to work, so that the motor drives a gear assembly to rotate, and a valve body half assembly rotates; the mode switching of the water valve is realized; comprising an actuator and a valve body half assembly, and the actuator is installed at the top end of the valve body half assembly; the actuator comprises an upper shell, a lower shell, a printed circuit board assembly, a motor and a gear assembly, the upper shell and the lower shell form a shell, the printed circuit board assembly, the motor and the gear assembly are assembled on the inner side of the shell, the gear assembly is arranged at the output end of the motor and located in the center of the inner side of the shell, and the gear assembly is arranged on the outer side of the shell. The printed circuit board assembly is electrically connected with the motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of new energy vehicles, in particular to a five-way electronic water valve. BACKGROUND

[0002] In recent years, with the rapid development of the new energy vehicle industry, its thermal management system becomes more and more integrated and intelligent. Compared with traditional fuel vehicles, the thermal management system of new energy vehicles is quite different due to different driving forms and energy architectures. The driving motor of a new energy vehicle requires high power and high speed, which will generate a large amount of heat during high-speed driving. If this heat is not removed in time, it will seriously affect the performance and service life of the motor. To improve the endurance, vehicle manufacturers often choose high-energy-density and high-discharge-rate power batteries, but too high energy density and discharge rate will inevitably generate a large amount of heat in the battery during use. High temperature not only affects the service life of the battery, but also easily causes safety accidents. The thermal management system of a new energy vehicle is relatively complex, and the temperature control requirements of different working systems are different, so the cooling liquid flow to each working system is also different. Therefore, new energy vehicles need an efficient thermal management system to ensure stable operation of the vehicle, and the temperature control problem faces great challenges. With the increasingly stringent energy-saving and emission-reduction policies, the traditional automobile thermostat has the disadvantages of "response delay" and "hysteresis characteristics", poor flowability, and difficulty in accurately controlling the flow size, resulting in low thermal management efficiency and being unable to meet the high requirements of new energy vehicles for temperature control. Therefore, the thermal management system of traditional vehicles is also gradually optimized, and electronic water valves have been used on some vehicle models to replace traditional thermostats for cooling liquid regulation.

[0003] The control system of the traditional new energy vehicle battery thermal management and motor thermal management needs to realize the switching of specific pipelines or pipeline ratios. At present, multiple electronic valves are still used to control each medium flow passage in the thermal management system, and each passage is kept in series or parallel. The thermal management system realizes its own flow circuit or adjusts to form a flow circuit. The traditional thermal management system involves multiple electronic valves, which is complex in structure and expensive in cost, and the medium flow passage is complex.

[0004] Therefore, in view of the above problems, it is particularly important to provide a lightweight, intelligent, low-cost, low-energy-consumption, fast-response, high-precision electronic water valve that can realize the connection of the flow passage and the proportional switching of the specific flow passage. Utility model content

[0005] To solve the above technical problems, the utility model provides a five-way electronic water valve which improves convenience.

[0006] The utility model discloses a five -way electronic water valve, including actuator and valve body half assembly, and the actuator is installed at the top of valve body half assembly,

[0007] The actuator comprises an upper shell, a lower shell, a printed circuit board assembly, a motor and a gear assembly, the upper shell and the lower shell form a shell, the printed circuit board assembly, the motor and the gear assembly are assembled on the inner side of the shell, the motor output end is provided with a gear assembly, the gear assembly is located at the center position of the inner side of the shell, and the printed circuit board assembly is electrically connected with the motor; when the water valve is operated, external signals are converted into current signals through the printed circuit board assembly, and then the current signals control the motor to work, so that the motor drives the gear assembly to rotate, the valve body half assembly is rotated, and the switching of the water valve mode is realized.

[0008] Preferably, the valve body half assembly comprises a valve cover, a sealing ring, a valve core, a sealing gasket and a valve body, the valve cover is installed above the valve body, the sealing ring is arranged between the valve cover and the valve body, the valve cover is provided with an A through hole, the valve body is provided with a B limiting structure, the valve core is provided with a D limiting mechanism matched with the B limiting mechanism, the valve core is located in the interior of the valve body, the upper end of the valve core is provided with an E spline structure, the output end of the actuator is provided with a spline structure matched with the E spline structure, the bottom end of the valve body is provided with a circular hole, the side surface of the valve core is provided with a plurality of F flow holes, the sealing gasket is installed between the valve core and the valve body, the sealing gasket is shaped the same as the inner side of the valve body, a plurality of openings are arranged in the sealing gasket, a plurality of flow holes are arranged on the inner wall of the valve body, a plurality of openings correspond to a plurality of flow holes, the inner wall of the valve body is provided with a G limiting clamping groove, the G limiting clamping groove clamps the sealing gasket, and the bottom of the valve body is provided with a plurality of H flow holes; the valve cover is assembled at the top of the valve body, the sealing ring seals between the valve cover and the valve body, the upper end of the valve core penetrates through the A through hole, the B limiting mechanism is matched with the D limiting mechanism, the B limiting mechanism and the D limiting mechanism cooperate with each other to rotate the valve core in the valve body and within a specific angle, so as to calibrate the angle of the valve core, the E spline structure is matched with the spline structure of the output end of the actuator, the actuator provides torque for the valve core, so as to control the rotation of the valve core, realize mode calibration and mode switching, after the valve core is assembled with the valve body, when the valve body is installed with the manifold assembly, a plurality of F flow holes correspond to the flow holes of the manifold assembly, the communication between specific flow channels of the manifold is realized, the sealing gasket is installed on the inner side of the valve body, a plurality of H flow holes correspond to the flow holes of the manifold assembly one by one, the valve core communicates with a plurality of H flow holes of the valve body under a specific angle, and mode switching is realized.

[0009] Preferably, the valve cover and the valve body are assembled by welding; the valve cover and the valve body are assembled by welding, so that the connection firmness is improved.

[0010] Preferably, the H-shaped flow hole is a fan shape; the fan-shaped H-shaped flow hole reduces the outer diameter of the valve body under the condition of ensuring the sectional area of the flow hole.

[0011] Preferably, the valve body is radially sealed; the valve body is axially matched with the manifold assembly, so that the deformation of the manifold assembly has little influence on the internal leakage and torque of the water valve.

[0012] Preferably, the valve body further comprises an external leakage sealing ring, the external leakage sealing ring is embedded and installed at the bottom of the valve body half assembly, and a plurality of small protrusions are arranged on the external leakage sealing ring.

[0013] Preferably, the valve body further comprises a PTFE film, lubricating sealing materials are arranged on the valve core and the sealing pad, and the lubricating sealing materials are PTFE films; the PTFE films ensure the lubricity and sealing performance between the valve core and the sealing pad, and improve the service life.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: when the water valve operates, external signals are converted into current signals through the printed circuit board assembly, then the current signals control the motor to work, so that the motor drives the gear assembly to rotate, and the valve body half assembly rotates, and the mode of the water valve is switched. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the axonometric structural schematic view of the utility model;

[0016] Figure 2 is the exploded structural schematic view of the actuator of the utility model;

[0017] Figure 3 is the exploded structural schematic view of the valve body half assembly of the utility model;

[0018] Figure 4 is the structural schematic view of the valve core of the utility model;

[0019] Figure 5 is the first structural schematic view of the valve body of the utility model;

[0020] Figure 6 is the second structural schematic view of the valve body of the utility model;

[0021] Figure 7 is the structural schematic view of the valve body and the valve core of the utility model;

[0022] Figure 8 is the distribution schematic view of the flow hole of the utility model.

[0023] Marked in the drawing: 1, actuator; 2, valve body half assembly; 3, outer leakage sealing ring; 11, upper shell; 12, lower shell; 13, printed circuit board assembly; 14, motor; 15, gear assembly; 21, valve cover; 22, sealing ring; 23, valve core; 24, sealing gasket; 25, valve body; 26, A through hole; 27, B limiting structure; 28, D limiting structure; 29, E spline structure; 30, G limiting slot; 31, H flow hole; 32, F flow hole. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. EMBODIMENT

[0025] As shown in the drawing, the five-way electronic water valve of the present application comprises an actuator 1 and a valve body half assembly 2, the actuator 1 is installed at the top end of the valve body half assembly 2; Figures 1 to 8

[0026] The actuator 1 comprises an upper shell 11, a lower shell 12, a printed circuit board assembly 13, a motor 14 and a gear assembly 15, the upper shell 11 and the lower shell 12 constitute a shell, the printed circuit board assembly 13, the motor 14 and the gear assembly 15 are assembled inside the shell, the motor 14 is provided with a gear assembly 15 at the output end, the gear assembly 15 is located at the center position inside the shell, and the printed circuit board assembly 13 is electrically connected with the motor 14.

[0027] In this embodiment, when the water valve is operated, the external signal is converted into a current signal by the printed circuit board assembly 13, and then the current signal controls the motor 14 to work, so that the motor 14 drives the gear assembly 15 to rotate, thereby rotating the valve body half assembly 2 and realizing the switching of the water valve mode. EMBODIMENT

[0028] On the basis of embodiment 1, as shown in the drawing, Figures 1 to 8 ​As shown, this utility model discloses a five-way electronic water valve. The valve body semi-assembly 2 includes a valve cover 21, a sealing ring 22, a valve core 23, a sealing gasket 24, and a valve body 25. The valve cover 21 is installed above the valve body 25. A sealing ring 22 is provided between the valve cover 21 and the valve body 25. The valve cover 21 is provided with an A through hole 26. The valve body 25 is provided with a B limiting structure. The valve core 23 is provided with a D limiting mechanism 28 that matches the B limiting mechanism 27. The valve core 23 is located inside the valve body 25. An E spline structure 29 is provided at the upper end of the valve core 23. The output end of the actuator 1 is provided with... The valve body 25 has a spline structure that matches the E spline structure 29. The bottom end of the valve body 25 is provided with a round hole. The side of the valve core 23 is provided with multiple sets of F flow holes 32. The sealing gasket 24 is installed between the valve core 23 and the valve body 25. The shape of the sealing gasket 24 is the same as the inner shape of the valve body 25. The sealing gasket 24 is provided with multiple sets of openings. The inner wall of the valve body 25 is provided with multiple sets of flow holes, and the multiple sets of openings correspond to the multiple sets of flow holes. The inner wall of the valve body 25 is provided with a G limiting groove 30, which engages the sealing gasket 24. The bottom of the valve body 25 is provided with multiple sets of H flow holes 31.

[0029] The valve cover 21 and the valve body 25 are assembled by welding; the H flow hole 31 is fan-shaped; the valve body 25 is radially sealed inside and also includes a PTFE membrane; the valve core 23 and the sealing gasket 24 are provided with lubricating and sealing materials, and the lubricating and sealing materials are PTFE membranes.

[0030] In this embodiment, as Figure 3 As shown, the valve cover 21 is installed above the valve body 25 and is assembled by welding for sealing. Considering the assembly strength and sealing performance, other assembly methods such as screws can also be used. A sealing ring is used to ensure the sealing performance between the valve cover 21 and the valve body 25. Figure 3 As shown, the valve cover 21 has an A-hole 26 at its center. During assembly, the upper end of the valve core 23 passes through the A-hole 26 of the valve cover 21. Since the water valve adjusts the relative angle between the valve core 23 and the valve body 25 by rotating the valve core 23, it controls the water valve to achieve mode switching and mode calibration functions. Figure 4 and Figure 5 As shown, a B-limiting structure 27 can be provided on the valve body 25 or valve cover 21, and a matching D-limiting structure 28 can be provided at the corresponding position on the valve core 23 to achieve this, such as... Figure 5 The scheme shown is that the valve body 25 is provided with a B limiting structure 27 on one side of the valve core 23, which cooperates with the D limiting structure 28 corresponding to the valve core 23, so that the valve core 23 can rotate within a specific angle in the valve body 25, and the angle of the valve core can be calibrated through the limiting structure.

[0031] like Figure 3As shown, the valve core 23 is located inside the valve body 25, the upper end of the valve core 23 has an E spline structure 29, and the output mechanism of the actuator 1 is provided with a matching spline structure to ensure that the actuator 1 provides torque for the valve core 23 to control the rotation of the valve core 23 and realize mode calibration and mode switching. Figure 3 As shown, the spline structure of the valve core 23 is assembled through the valve cover 21, and a sealing ring 22 is assembled between the valve cover 21 and the valve core 23 for sealing. The lower end of the valve core 23 has a central shaft assembled in the circular hole on the bottom surface of the valve body 25 to ensure the coaxiality of the valve core 23 and the valve body 25, and also serves as one of the flow holes. Figure 3 As shown, the D limiting structure 28 of the valve core 23 cooperates with the B limiting structure 27 of the valve body 25 to realize angle control of the valve core 23. The limiting structure of the valve core 23 can also be arranged on the upper end surface of the valve core 23, and a limiting structure can also be arranged at the corresponding position of the valve cover 21 to achieve the same effect. Figure 4 As shown, the valve core 23 has a plurality of flow holes F on the side surface. After being assembled with the valve body 25, the flow holes correspond to the flow channels of the manifold assembly when the manifold assembly is installed, thereby realizing the communication between the specific flow channels of the manifold. Figure 3 As shown, the sealing gasket 24 is installed between the valve core 23 and the valve body 25. The shape of the sealing gasket 24 is consistent with the shape of the inner wall of the valve body 25 to ensure that each flow hole is independently sealed. The sealing gasket 24 is generally rectangular and has a plurality of openings in the inside corresponding to the flow holes in the inner wall of the valve body 25. When the water valve is working, the valve body 25 and the sealing gasket 24 remain relatively stationary, so the sealing gasket 24 and the valve body 25 should be firmly installed. Positioning pins and other limiting structures can be added. Figure 5 As shown, the inner wall of the valve body 25 has a G limiting groove 30 structure, and the sealing gasket 24 is embedded in the groove when installed. The groove can effectively prevent the sealing gasket 24 from rotating or falling out. The lower end surface of the sealing gasket 24 is designed in a grid shape to adjust the compression amount of the sealing gasket while ensuring sealing. When the water valve is working, the valve core 23 and the sealing gasket 24 rotate and rub against each other. In order to ensure the lubricity and sealing between them, a lubricating and sealing material can be added to the upper layer of the sealing gasket. The lubricating and sealing material is PTFE film. Figure 3 As shown, the valve body 25 is in the shape of a cylinder, the sealing gasket 24 is installed in the inner wall of the valve body 25, and the valve core 23 is assembled inside the valve body 25, and the valve cover 21 is assembled on the top of the valve body 25. Figure 7 As shown, a plurality of H flow holes 31 are opened on the bottom surface of the valve body 25, corresponding to the flow holes of the manifold assembly. The H flow holes 31 can be arranged in a fan shape to reduce the maximum outer diameter of the valve body while ensuring the cross-sectional area of the flow holes. Figure 3 As shown, the inside of the valve body 25 is radially sealed, and the valve body 25 is axially matched with the manifold assembly to reduce the deformation of the manifold and the influence of the deformation on the internal leakage and torque of the water valve and other performance,

[0032] As shown, Figure 7As shown, the through holes in the bottom surface of the valve body 25 are distributed in a circumferential annular shape. The spool 23 can connect certain through holes of the valve body 25 at certain angles to achieve mode switching. To meet the actual manufacturing and assembly process requirements and other requirements, the spool flow channel, the valve body flow channel and the mode angle can be adjusted appropriately.

[0033] In this embodiment, there are 12 modes, including 4 proportional modes. The rotation angle of the spool 23 is 0°-315°, as shown in the following table. Figure 1 As shown, the spool angle is initially at the 0° position.

[0034] Mode one is b-c hole through, d-e hole through, a hole not through, so when the spool rotation angle is 0°, the mode requirement is met.

[0035] Mode two is a-b hole through, d-e hole through, c hole not through, so when the spool rotation angle is 45°, the mode requirement is met.

[0036] Mode three is c-d hole through, a-e hole through, b hole not through, so when the spool rotation angle is 90°, the mode requirement is met.

[0037] Mode four is b-c hole through, a-e hole through, d hole not through, so when the spool rotation angle is 135°, the mode requirement is met.

[0038] Mode five is a-d hole through, b-e hole through, c hole not through, so when the spool rotation angle is 180°, the mode requirement is met.

[0039] Mode six is c-d hole through, b-e hole through, a hole not through, so when the spool rotation angle is 225°, the mode requirement is met.

[0040] Mode seven is a-b hole through, c-e hole through, d hole not through, so when the spool rotation angle is 270°, the mode requirement is met.

[0041] Mode eight is a-d hole through, c-e hole through, b hole not through, so when the spool rotation angle is 315°, the mode requirement is met.

[0042] Mode nine is that during the process of the spool angle from 0° to 45°, b-c changes from full opening to full closing, b-a changes from full closing to full opening, and d-e is always through.

[0043] Mode ten is that during the process of the spool angle from 90° to 135°, c-d changes from full opening to full closing, c-b changes from full closing to full opening, and a-e is always through.

[0044] Mode eleven is that during the process of the spool angle from 180° to 225°, d-a changes from full opening to full closing, d-c changes from full closing to full opening, and b-e is always through.

[0045] Mode twelve is that the valve core angle is from 270°-315°, b-c is from full opening to full closing, b-a is from full closing to full opening, and c-e is always open.

[0046] The specific modes are shown in Table 1 and Table 2 as follows:

[0047]

[0048]

[0049] When the water valve starts to work, the actuator receives the whole vehicle signal instruction, controls the motor to rotate, drives the valve core to rotate to a specific angle through the gear system, and then connects the valve core flow passage to a specific flow passage, realizes the water passing or flow adjustment of the specific flow passage, and achieves the preset mode. The flow medium flows into the valve core flow passage from the preset inlet flow passage, switches the flow direction and flow adjustment of different flow passages, and then flows out from the outlet flow passage, so as to finally realize the temperature adjustment of the thermal management system.

[0050] The main functions realized by the utility model are as follows:

[0051] 1. Eight different modes can be switched at a specific angle, which is beneficial to the integration of the thermal management system and facilitates the arrangement and installation of the water valve on the thermal management system.

[0052] 2. The proportional switching of four different modes can be realized in a specific angle interval, which is beneficial to the selection of various functional requirements of the thermal management system.

[0053] 3. The valve core cross-section sealing rib is in the shape of a "person", which divides the valve core into three parts of flow passage, two parts of flow passage are set as 135°, and the remaining part of flow passage is 90° and connected with the center flow passage of the valve core.

[0054] 4. The valve body flow passage is in the shape of a cross, four flow passage holes are evenly distributed on the side wall of the valve body, each flow passage hole is spaced 90°, and the remaining flow passage hole penetrates the bottom center.

[0055] 5. The side and bottom of the valve core and valve body are provided with flow passage holes, the flow passage arrangement is more compact, more modes can be realized, and the integration and light weight of the thermal management system are beneficial.

[0056] 6. The spline on the upper end of the valve core cooperates with the actuator to transmit the torque of the actuator to the valve core.

[0057] 7. The valve has fewer flow passage corners, smaller backflow of fluid, smaller flow resistance and flow loss, lower pressure drop, and less energy loss.

[0058] 8. The sealing gasket made of rubber+PTFE reduces friction, slows down the wear degree of the valve core, and prolongs the service life of the valve core.

[0059] 9. The valve core and the valve cover are equipped with limiting device, can limit the angle of valve core rotation;

[0060] 10. The outer leakage sealing ring has a plurality of small convex points on the upper surface, so that the outer leakage sealing ring can be more closely embedded in the valve body;

[0061] 11. The response is more rapid, the cooling is faster, and the safety of the automobile is improved;

[0062] 12. The whole is more miniaturized, the assembly is more convenient, and the cost is lower.

[0063] The printed circuit board assembly 13 and the motor 14 of the five-way electronic water valve are purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, without the technical personnel in the field paying creative labor.

[0064] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary technical personnel in the technical field, a number of improvements and modifications can be made without departing from the technical principle of the utility model, and these improvements and modifications should also be regarded as the protection range of the utility model.

Claims

1. A five-way electronic water valve comprising an actuator (1) and a valve body half-assembly (2), the actuator (1) being mounted at the top end of the valve body half-assembly (2); characterized in that, The actuator (1) comprises an upper shell (11), a lower shell (12), a printed circuit board assembly (13), a motor (14) and a gear assembly (15), the upper shell (11) and the lower shell (12) constitute a shell, the printed circuit board assembly (13), the motor (14) and the gear assembly (15) are assembled inside the shell, the output end of the motor (14) is provided with the gear assembly (15), the gear assembly (15) is located at the center position inside the shell, and the printed circuit board assembly (13) is electrically connected with the motor (14).

2. A five-way electronic water valve as defined in claim 1, wherein The valve body half assembly (2) comprises a valve cover (21), a sealing ring (22), a valve core (23), a sealing gasket (24) and a valve body (25), the valve cover (21) is installed above the valve body (25), the sealing ring (22) is arranged between the valve cover (21) and the valve body (25), the A through hole (26) is arranged on the valve cover (21), the B limiting structure is arranged on the valve body (25), the D limiting mechanism (28) matched with the B limiting mechanism (27) is arranged on the valve core (23), the valve core (23) is located inside the valve body (25), the E spline structure (29) is arranged on the upper end of the valve core (23), the spline structure matched with the E spline structure (29) is arranged on the output end of the actuator (1), the round hole is arranged at the bottom end of the valve body (25), a plurality of F flow holes (32) are arranged on the side surface of the valve core (23), the sealing gasket (24) is installed between the valve core (23) and the valve body (25), the sealing gasket (24) has the same shape as the inside of the valve body (25), a plurality of openings are arranged in the sealing gasket (24), a plurality of flow holes are arranged on the inner wall of the valve body (25), a plurality of openings correspond to a plurality of flow holes, the G limiting clamping groove (30) is arranged on the inner wall of the valve body (25), the G limiting clamping groove (30) clamps the sealing gasket (24), and a plurality of H flow holes (31) are arranged at the bottom of the valve body (25).

3. A five-way electronic water valve as defined in claim 2, wherein, The valve cover (21) and the valve body (25) are assembled by welding.

4. A five-way electronic water valve as defined in claim 2, wherein, The H flow hole (31) is a fan shape.

5. A five-way electronic water valve as defined in claim 2, wherein, The inside of the valve body (25) is radially sealed.

6. A five-way electronic water valve as defined in claim 1, wherein, An outer leakage sealing ring (3) is further included, the outer leakage sealing ring (3) is embedded and installed at the bottom of the valve body half assembly (2), and a plurality of small protrusions are arranged on the outer leakage sealing ring (3).

7. A five-way electronic water valve as defined in claim 2, wherein, A PTFE film is further included, lubricating sealing materials are arranged on the valve core (23) and the sealing gasket (24), and the lubricating sealing materials are PTFE films. A PTFE film is further included, lubricating sealing materials are arranged on the valve core (23) and the sealing gasket (24), and the lubricating sealing materials are PTFE films.

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